/* Responsive breakpoints (align with md_doc_viewer.js): mobile <=768px, tablet 769–1024px, desktop >1024px. */
/* ---- Config error overlay ---- */
/* Config error – hide main app when config is missing/invalid */
body.config-error .header,
body.config-error .container,
body.config-error .to-top-btn,
body.config-error .reading-progress-bar,
body.config-error .activity-feed-btn {
    display: none !important;
}

/* Config error overlay – shown when config.json is missing or invalid */
.config-error-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--bg-color);
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.config-error-overlay[hidden] {
    display: none !important;
}

.config-error-overlay.visible {
    display: flex !important;
    opacity: 1;
}

.config-error-content {
    text-align: center;
    max-width: 400px;
}

.config-error-icon {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.config-error-icon svg {
    display: inline-block;
}

.config-error-title {
    margin: 0 0 8px 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.config-error-message {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.config-error-message code {
    font-size: 0.8125rem;
    padding: 2px 6px;
    background: var(--bg-secondary);
    border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
    .sidebar,
    .pagenotes-sidebar,
    .pagenote-popup,
    .sidebar-backdrop,
    .config-error-overlay,
    .login-gate-overlay {
        transition-duration: 0.01ms;
    }
}

/* ---- Login gate overlay (auth on, not logged in) ---- */
body.login-gate-active .skip-link,
body.login-gate-active .header,
body.login-gate-active .container,
body.login-gate-active .to-top-btn,
body.login-gate-active .page-load-overlay,
body.login-gate-active .reading-progress-bar,
body.login-gate-active .activity-feed-btn {
    display: none !important;
}

.login-gate-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10001;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-gate-overlay[hidden] {
    display: none !important;
}

.login-gate-overlay.visible {
    display: flex !important;
}

.login-gate-backdrop {
    position: absolute;
    inset: 0;
    background: var(--bg-color);
}

.login-gate-card {
    position: relative;
    text-align: center;
    max-width: 380px;
    padding: 32px;
    background: var(--bg-secondary, #f6f8fa);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.login-gate-title {
    margin: 0 0 12px 0;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-color);
}

.login-gate-description {
    margin: 0 0 24px 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.login-gate-btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 1rem;
    text-decoration: none;
    border-radius: 8px;
}

/* Content error boxes (doc not found, script error, etc.) – use theme vars */
.content-error-box {
    color: var(--error-text);
    padding: 16px;
    border: 1px solid var(--error-border);
    border-radius: 6px;
    margin: 16px 0;
}

.content-error-box code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
}

.content-error-refresh-btn {
    min-height: 44px;
    padding: 8px 16px;
    background: var(--link-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 8px;
}

.offline-banner {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
    text-align: center;
}

.offline-banner.hidden {
    display: none;
}

/* ---- Header ---- */
/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    padding: env(safe-area-inset-top, 0px) 16px 0 16px;
    background-color: var(--header-bg);
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.header-title-block {
    display: flex;
    align-items: baseline;
    gap: 8px;
    min-width: 0;
}

.header h1 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-version {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--header-text-muted);
    flex-shrink: 0;
    opacity: 0.85;
}

.header-center {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
    padding: 0 16px;
}

.header-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

/* Reading progress bar – thin bar below header */
.reading-progress-bar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: 3px;
    z-index: 99;
    background: transparent;
    pointer-events: none;
}

.reading-progress-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--reading-progress-color, var(--link-color));
    transition: width 0.08s ease-out;
}

/* Share button */
.share-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.share-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.share-btn.copied {
    background-color: rgba(46, 160, 67, 0.3);
}

.share-btn svg {
    display: block;
}

/* Download button */
.download-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.download-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.download-btn svg {
    display: block;
}

/* Page notes toggle button */
.pagenotes-toggle-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.pagenotes-toggle-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.pagenotes-toggle-btn.active {
    background-color: rgba(255, 255, 255, 0.15);
}

.pagenotes-toggle-btn svg {
    display: block;
}

/* Edit page button (shown when editing enabled) */
.add-page-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    color: inherit;
}
.add-page-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}
.add-page-btn.hidden {
    display: none !important;
}
.add-page-btn svg {
    display: block;
}

.edit-page-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.edit-page-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.edit-page-btn.hidden {
    display: none !important;
}

.edit-page-btn svg {
    display: block;
}

/* Width toggle button */
.width-toggle-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.width-toggle-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.width-toggle-btn.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.width-toggle-btn svg {
    display: block;
}

/* Font size controls */
.font-size-controls {
    display: flex;
    align-items: center;
    gap: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 2px;
}

.font-size-controls button {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 4px;
    color: var(--header-text);
    font-size: 0.8125rem;
    font-weight: 600;
    transition: background-color 0.2s;
    line-height: 1;
}

.font-size-controls button:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

#fontDecrease {
    font-size: 0.75rem;
}

#fontReset {
    font-size: 0.875rem;
}

#fontIncrease {
    font-size: 1rem;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 500;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-size: 0.875rem;
    color: var(--text-color);
    pointer-events: auto;
    animation: toastSlideIn 0.3s ease-out;
    max-width: 320px;
}

.toast.toast-exit {
    animation: toastSlideOut 0.2s ease-in forwards;
}

.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-icon.success {
    color: #2ea043;
}

.toast-icon.info {
    color: var(--link-color);
}

.toast-icon.warning {
    color: #f59e0b;
}

.toast-icon.error {
    color: #dc3545;
}

.toast-message {
    flex: 1;
    line-height: 1.4;
}

[data-theme="dark"] .toast {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastSlideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* Header Menu (dropdown) */
.header-menu {
    position: relative;
}

/* Header profile circle and dropdown */
.header-profile {
    position: relative;
}

.header-profile.hidden {
    display: none !important;
}

.profile-circle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: none;
    cursor: pointer;
    color: var(--header-text);
    transition: background-color 0.2s;
}

.profile-circle-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.profile-circle-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
}

.header-profile .header-profile-avatar,
.header-profile .comment-avatar.header-profile-avatar {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
}

.header-profile img.header-profile-avatar,
.header-profile img.comment-avatar-img.header-profile-avatar {
    width: 32px;
    height: 32px;
}

.header-profile .profile-dropdown {
    min-width: 180px;
}

.header-profile-avatar.profile-guest {
    background: var(--comment-avatar-bg) !important;
}

.menu-trigger {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--header-text);
    font-size: 1.25rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.menu-trigger:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.menu-icon {
    font-weight: bold;
    letter-spacing: -1px;
}

.menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    width: 240px;
    min-width: 200px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 200;
    display: block;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
    overflow: hidden;
}

.menu-dropdown.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    overflow: visible;
}

.menu-dropdown-list {
    padding: 4px 0;
    max-height: min(70vh, 400px);
    overflow-y: auto;
}

.menu-item-has-submenu .menu-item-submenu-arrow {
    flex-shrink: 0;
    font-size: 0.65rem;
    color: var(--text-secondary);
    margin-left: 4px;
}

.menu-dropdown-flyout {
    position: absolute;
    left: 30px;
    right: auto;
    top: 0;
    margin-top: 0;
    min-width: 200px;
    width: max-content;
    padding: 4px 0;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 201;
    display: none;
}

.menu-dropdown-flyout.visible {
    display: block;
}

.menu-dropdown-flyout .menu-item {
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 0;
}

.menu-dropdown-flyout .menu-item:first-child {
    border-radius: 4px 4px 0 0;
}

.menu-dropdown-flyout .menu-item:last-child {
    border-radius: 0 0 4px 4px;
}

.menu-dropdown-flyout.visible.menu-flyout-bookmarks {
    display: flex;
}

.menu-flyout-bookmarks {
    min-width: 220px;
    max-width: 280px;
    max-height: min(60vh, 320px);
    overflow: hidden;
    flex-direction: column;
}

.menu-flyout-bookmarks-header {
    padding: 8px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-bottom: 1px solid var(--border-color);
}

.menu-flyout-bookmarks .star-dropdown-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

.menu-flyout-bookmarks .star-dropdown-empty {
    flex-shrink: 0;
}

.menu-system-divider.hidden {
    display: none;
}

.menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 10px 16px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-color);
    text-align: left;
    transition: background-color 0.15s;
}

.menu-item:hover {
    background-color: var(--hover-bg);
}

.menu-item:first-child {
    border-radius: 4px 4px 0 0;
}

.menu-item:last-child {
    border-radius: 0 0 4px 4px;
}

.menu-item.hidden {
    display: none !important;
}

.menu-item.responsive-control {
    display: none;
}

.menu-divider {
    height: 1px;
    margin: 4px 0;
    background: var(--border-color);
}

.menu-divider.hidden {
    display: none;
}

/* Fixed-width icon column so icons and labels line up across items */
.menu-item-icon {
    flex-shrink: 0;
    width: 1.25rem;
    min-width: 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    line-height: 1;
}

.menu-item-label {
    flex: 1;
    text-align: left;
}

/* ---- Search ---- */
/* Search Container - centered, double width */
.search-container {
    position: relative;
    width: min(480px, 42vw);
    min-width: 260px;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    /* Light theme: white box, black text */
    background-color: #ffffff;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    overflow: hidden;
    width: 100%;
}

.search-input {
    background: transparent;
    border: none;
    padding: 6px 12px;
    color: #24292f;
    font-size: 0.875rem;
    width: 100%;
    flex: 1;
    min-width: 0;
    outline: none;
}

.search-input::placeholder {
    color: #57606a;
}

.search-input:focus {
    outline: none;
}

.search-input-wrapper:focus-within {
    border-color: #0969da;
    box-shadow: 0 0 0 1px #0969da;
}

.search-clear-btn {
    background: transparent;
    border: none;
    border-left: 1px solid #d0d7de;
    padding: 6px 10px;
    color: #57606a;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1;
    min-width: 36px;
}

.search-clear-btn:hover {
    background: #eaeef2;
    color: #24292f;
}

.search-clear-btn.hidden {
    display: none;
}

.search-mode-toggle {
    background: #f6f8fa;
    border: none;
    border-left: 1px solid #d0d7de;
    padding: 6px 10px;
    color: #24292f;
    font-size: 0.75rem;
    cursor: pointer;
    font-weight: 600;
    min-width: 55px;
}

.search-mode-toggle:hover {
    background: #eaeef2;
}

/* Dark theme: dark box, light text */
[data-theme="dark"] .search-input-wrapper {
    background-color: #21262d;
    border-color: #30363d;
}

[data-theme="dark"] .search-input {
    color: #c9d1d9;
}

[data-theme="dark"] .search-input::placeholder {
    color: #8b949e;
}

[data-theme="dark"] .search-input-wrapper:focus-within {
    border-color: #58a6ff;
    box-shadow: 0 0 0 1px #58a6ff;
}

[data-theme="dark"] .search-clear-btn {
    border-left-color: #30363d;
    color: #8b949e;
}

[data-theme="dark"] .search-clear-btn:hover {
    background: #30363d;
    color: #c9d1d9;
}

[data-theme="dark"] .search-mode-toggle {
    background: #161b22;
    border-left-color: #30363d;
    color: #c9d1d9;
}

[data-theme="dark"] .search-mode-toggle:hover {
    background: #30363d;
}

.search-mode-toggle.global {
    background: var(--link-color);
    color: #fff;
}

[data-theme="dark"] .search-mode-toggle.global {
    background: #238636;
    color: #fff;
}

[data-theme="dark"] .search-mode-toggle.global:hover {
    background: #2ea043;
}

/* Search filters (global mode) */
.search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.search-filters[hidden] {
    display: none !important;
}

.search-filter-select {
    font-size: 0.8rem;
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-color);
    flex: 1 1 120px;
    min-width: 0;
    max-width: none;
}

.search-filter-select:focus {
    outline: none;
    border-color: var(--accent-color, #0969da);
}

/* Search Results Dropdown - same width as search container */
.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    margin-top: 4px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-height: 400px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.search-results.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.search-results-list {
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.search-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 12px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    flex-shrink: 0;
}

.search-results-loading {
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-results-loading .loading-spinner {
    width: 18px;
    height: 18px;
    border-width: 2px;
    margin-bottom: 0;
    flex-shrink: 0;
}

.search-result-item {
    padding: 10px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    display: block;
    text-decoration: none;
    color: inherit;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background-color: var(--hover-bg);
}

.search-result-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-color);
    margin-bottom: 4px;
}

.search-result-path {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.search-result-snippet {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.search-result-snippet mark {
    background-color: #fff3b0;
    color: #24292f;
    padding: 0 2px;
    border-radius: 2px;
}

[data-theme="dark"] .search-result-snippet mark {
    background-color: #634d00;
    color: #ffd33d;
}

.search-results-footer {
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    flex-shrink: 0;
}

.search-results-footer .search-filters {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.search-results-show-all {
    display: block;
    font-size: 0.8rem;
    color: var(--link-color);
    text-decoration: none;
}

.search-results-show-all:hover {
    text-decoration: underline;
}

.search-history-item,
.search-history-clear {
    display: block;
    width: 100%;
    padding: 8px 12px;
    text-align: left;
    background: none;
    border: none;
    font: inherit;
    color: var(--text-color);
    cursor: pointer;
}

.search-history-item {
    border-bottom: 1px solid var(--border-color);
}

.search-history-item:hover,
.search-history-clear:hover {
    background-color: var(--hover-bg);
}

.search-history-clear {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Full-page search results view (main content area) */
.search-results-page {
    display: none;
    max-width: 48rem;
    margin: 0 auto;
    padding: 0.25rem 1.5rem 2rem;
}

.search-results-page.visible {
    display: block;
}

/* Activity feed page */
.activity-feed-page {
    display: none;
    max-width: 48rem;
    margin: 0 auto;
    padding: 1.5rem 1.5rem 2rem;
}

.activity-feed-page.visible {
    display: block;
}

.activity-feed-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 1rem;
}

.activity-feed-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.activity-feed-filters {
    display: flex;
    gap: 8px;
}

.activity-feed-filter-select {
    font-size: 0.875rem;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
}

.activity-feed-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.activity-feed-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    text-decoration: none;
    color: inherit;
}

.activity-feed-item:hover {
    background: var(--hover-bg);
   border-color: var(--link-color);
}

.activity-feed-item-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--link-color);
}

.activity-feed-item-body {
    flex: 1;
    min-width: 0;
}

.activity-feed-item-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.activity-feed-item-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
}

.activity-feed-item-doc {
    font-size: 0.8125rem;
    color: var(--link-color);
    margin-top: 4px;
}

.activity-feed-loading,
.activity-feed-empty {
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.sidebar-activity-link {
    display: block;
    padding: 8px 12px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--link-color);
    text-decoration: none;
    border-radius: 6px;
    margin-bottom: 4px;
}

.sidebar-activity-link:hover {
    background: var(--hover-bg);
    color: var(--link-color);
}

/* Backlinks section (pages that link to this page) */
.backlinks-section {
    max-width: 900px;
    margin: 2rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.backlinks-section.hidden {
    display: none !important;
}

.backlinks-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0 0 0.75rem 0;
}

.backlinks-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.backlinks-card {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.875rem;
    line-height: 1.2;
    background: var(--bg-secondary);
    color: var(--link-color);
    border: 1px solid var(--border-color);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.backlinks-card:hover {
    color: var(--link-color);
    background: var(--hover-bg);
    border-color: var(--link-color);
}

.backlinks-card:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 2px;
}

.search-results-page .search-results-page-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.search-results-page .search-results-page-meta {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.search-results-page .search-result-item {
    border-radius: 6px;
    margin-bottom: 8px;
    border: 1px solid var(--border-color);
}

.search-results-page .search-result-item:last-child {
    border-bottom: 1px solid var(--border-color);
}

.search-no-results {
    padding: 16px 12px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Browse by tag full-page view */
.browse-tags-page {
    display: none;
    max-width: 48rem;
    margin: 0 auto;
    padding: 0.25rem 1.5rem 2rem;
}

.browse-tags-page.visible {
    display: block;
}

.browse-tags-page .browse-tags-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.browse-tags-page .browse-tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 1.5rem;
}

.browse-tags-page .doc-tag-pill.active {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}

.browse-tags-page .browse-tags-doc-list {
    margin-top: 1rem;
}

.browse-tags-page .browse-tags-doc-list .search-result-item {
    border-radius: 6px;
    margin-bottom: 8px;
    border: 1px solid var(--border-color);
}

/* Page search highlights */
.markdown-body mark.search-highlight {
    background-color: #fff3b0;
    color: #24292f;
    padding: 0 2px;
    border-radius: 2px;
}

[data-theme="dark"] .markdown-body mark.search-highlight {
    background-color: #634d00;
    color: #ffd33d;
}

.markdown-body mark.search-highlight.current {
    background-color: #ffa500;
    color: #000;
}

[data-theme="dark"] .markdown-body mark.search-highlight.current {
    background-color: #ffa500;
    color: #000;
}

/* Page search navigation */
.page-search-nav {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.page-search-nav.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.page-search-nav span {
    font-size: 0.875rem;
    color: var(--text-color);
}

.page-search-nav button {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text-color);
}

.page-search-nav button:hover {
    background: var(--hover-bg);
}

/* Floating TOC (top right); shifts left when right sidebar is open */
.toc-floating {
    position: fixed;
    top: calc(var(--header-height) + 16px);
    right: 24px;
    width: 220px;
    max-height: calc(100vh - var(--header-height) - 48px);
    overflow-y: auto;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    z-index: 90;
    font-size: 0.8125rem;
    transition: right 0.2s ease;
}

.toc-floating.hidden {
    display: none !important;
}

.toc-floating-title {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.toc-floating-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.toc-floating-list a {
    color: var(--link-color);
    text-decoration: none;
    display: block;
    padding: 4px 0;
    line-height: 1.3;
}

.toc-floating-list a:hover {
    text-decoration: underline;
}

.toc-floating-list .toc-h1 {
    font-weight: 600;
}

.toc-floating-list .toc-h3 {
    padding-left: 12px;
    font-size: 0.9em;
    opacity: 0.9;
}

/* To-top button (bottom right); shifts left when right sidebar is open */
.to-top-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s, right 0.2s ease;
}

.to-top-btn:hover {
    background: var(--hover-bg);
    transform: scale(1.05);
}

.to-top-btn.hidden {
    display: none !important;
}

/* When right sidebar (page notes) is open, push TOC and to-top button left so they stay over the main content */
body.pagenotes-sidebar-open .toc-floating {
    right: calc(320px + 24px);
}
body.pagenotes-sidebar-open .to-top-btn {
    right: calc(320px + 24px);
}

/* Mobile: TOC and to-top offset must match actual sidebar width (narrower than 320px on small viewports) */
@media (max-width: 768px) {
    body.pagenotes-sidebar-open .toc-floating {
        right: calc(min(320px, calc(100vw - 24px)) + 12px);
    }
    body.pagenotes-sidebar-open .to-top-btn {
        right: calc(min(320px, calc(100vw - 24px)) + 12px);
    }
}

/* My Bookmarks (sidebar, above recently viewed) */
.bookmarks-docs {
    padding: 12px 8px 8px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.bookmarks-docs.hidden {
    display: none !important;
}

.bookmarks-docs-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding: 0 8px;
    gap: 4px;
}

.bookmarks-docs-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.bookmarks-docs-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.bookmark-item {
    display: flex;
    align-items: center;
    gap: 4px;
    border-radius: 4px;
}

.bookmark-item a,
.bookmarks-docs-list .bookmarks-doc-item {
    flex: 1;
    min-width: 0;
    display: block;
    padding: 6px 8px;
    font-size: 0.8125rem;
    color: var(--link-color);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bookmark-item .bookmarks-doc-item {
    padding: 6px 8px;
}

.bookmark-delete {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bookmark-delete:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.bookmarks-docs-list .bookmark-item a:hover,
.bookmarks-docs-list .bookmark-item:hover .bookmarks-doc-item {
    background: var(--active-bg);
    color: var(--link-color);
    text-decoration: none;
}

.bookmarks-docs-list .bookmarks-empty {
    padding: 6px 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* Recently viewed (sidebar, above tree) */
.recent-docs {
    padding: 12px 8px 8px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.recent-docs.hidden {
    display: none !important;
}

/* Toolbar element visibility */
.search-container.hidden,
.font-size-controls.hidden,
.width-toggle-btn.hidden,
.share-btn.hidden,
.download-btn.hidden,
.pagenotes-toggle-btn.hidden,
.activity-feed-btn.hidden {
    display: none !important;
}

/* Star / Favorites toolbar button and dropdown */
.star-dropdown-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.star-dropdown-wrap.hidden {
    display: none !important;
}

.star-btn {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    color: var(--header-text);
    display: flex;
    align-items: center;
    justify-content: center;
}

.star-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.star-btn svg {
    display: block;
}

.star-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    width: 260px;
    min-width: 200px;
    max-height: min(60vh, 320px);
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 200;
    display: none;
    overflow: hidden;
}

.star-dropdown.visible {
    display: block;
}

/* Match sidebar "My Bookmarks" section header */
.star-dropdown-header {
    padding: 12px 8px 8px;
    border-bottom: 1px solid var(--border-color);
}

.star-dropdown-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* Match sidebar bookmarks-docs-list / recent-docs-list */
.star-dropdown-list {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: min(60vh, 280px);
    overflow-y: auto;
}

.star-dropdown-list .bookmark-item {
    display: flex;
    align-items: center;
    gap: 4px;
    border-radius: 4px;
}

.star-dropdown-list .bookmark-item a {
    flex: 1;
    min-width: 0;
    display: block;
    padding: 6px 8px;
    font-size: 0.8125rem;
    color: var(--link-color);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.star-dropdown-list .bookmark-item a:hover {
    background: var(--active-bg);
    color: var(--link-color);
    text-decoration: none;
}

.star-dropdown-list .bookmark-delete {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.star-dropdown-list .bookmark-delete:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.star-dropdown-empty {
    padding: 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-align: left;
}

.star-dropdown-empty.hidden {
    display: none !important;
}

.recent-docs-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding: 0 8px;
    gap: 4px;
}

.recent-docs-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.recent-docs-clear {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.recent-docs-clear:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.recent-docs-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.recent-docs-list a,
.recent-docs-list .recent-doc-item {
    display: block;
    padding: 6px 8px;
    font-size: 0.8125rem;
    color: var(--link-color);
    text-decoration: none;
    border-radius: 6px;
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recent-docs-list a:hover,
.recent-docs-list .recent-doc-item:hover {
    background: var(--active-bg);
    color: var(--link-color);
    text-decoration: none;
}

.recent-docs-list .recent-empty {
    color: var(--text-secondary);
    font-style: italic;
    cursor: default;
    padding: 6px 8px;
}

.recent-docs-list .recent-empty:hover {
    background: transparent;
}

/* ---- Overlays (settings, shortcuts, project info, user profile, first-load, diagram modal) ---- */
/* Settings overlay */
.settings-overlay {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.settings-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.settings-card {
    max-width: 420px;
}

.settings-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 16px;
}

.settings-tab {
    padding: 6px 12px;
    font-size: 0.8125rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
}

.settings-tab:hover {
    background: var(--hover-bg);
}

.settings-tab.active {
    background: var(--accent-color, #2563eb);
    color: #fff;
    border-color: var(--accent-color, #2563eb);
}

.settings-content {
    margin-bottom: 20px;
    min-height: 180px;
}

.settings-panel {
    display: none;
}

.settings-panel.active {
    display: block;
}

.settings-panel .settings-list:last-child {
    margin-bottom: 0;
}

.settings-toolbar-bulk {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.settings-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.settings-footer-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.settings-footer-center {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
    flex: 1;
    min-width: 0;
}

.settings-footer-right {
    display: flex;
    align-items: center;
}

.settings-version-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 16px 0 12px 0;
}

.settings-viewer-version {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 12px;
}

.settings-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.settings-list button.hidden {
    display: none !important;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
}

.settings-row input[type="checkbox"] {
    margin: 0;
}

.settings-row select {
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.875rem;
}

.settings-row input[type="email"] {
    width: 170px;
    max-width: 100%;
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.875rem;
}

.settings-row input[type="number"] {
    width: 60px;
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.875rem;
    text-align: center;
    -moz-appearance: textfield;
}

.settings-row input[type="number"]::-webkit-inner-spin-button,
.settings-row input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Custom number input with buttons */
.number-input-wrapper {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    background: var(--bg-color);
}

.number-input-wrapper input[type="number"] {
    width: 40px;
    padding: 4px 2px;
    border: none;
    border-radius: 0;
    text-align: center;
    background: transparent;
}

.number-input-btn {
    width: 24px;
    height: 28px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s;
}

.number-input-btn:hover {
    background: var(--border-color);
}

.number-input-btn:first-child {
    border-right: 1px solid var(--border-color);
}

.number-input-btn:last-child {
    border-left: 1px solid var(--border-color);
}

.settings-row-indent {
    margin-left: 24px;
    padding-left: 8px;
    border-left: 2px solid var(--border-color);
}

.settings-subtitle {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 8px 0 12px 0;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.settings-card .settings-subtitle:first-of-type {
    padding-top: 0;
    margin-top: 0;
    border-top: none;
}

.settings-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    margin-bottom: 20px;
}

.settings-action {
    font-size: 0.875rem;
    padding: 0;
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    text-decoration: none;
    transition: color 0.15s;
}

.settings-action:hover {
    color: var(--text-color);
    text-decoration: underline;
}

.settings-header-colors {
    flex-wrap: wrap;
    align-items: flex-start;
}

.settings-header-colors-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 16px;
}

.settings-color-label {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.settings-color-label input[type="color"] {
    width: 44px;
    height: 28px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background: var(--bg-color);
}

.settings-reset-inline {
    font-size: 0.8rem;
    padding: 4px 8px;
}

.settings-toolbar-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.settings-toolbar-list .settings-row {
    justify-content: flex-start;
    gap: 8px;
}

.settings-toolbar-order-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.settings-toolbar-order-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.settings-toolbar-order-row .settings-row {
    flex: 1;
    min-width: 0;
}

.settings-toolbar-order-btns {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.settings-order-btn {
    padding: 4px 8px;
    min-width: 32px;
    font-size: 0.875rem;
    line-height: 1;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-color);
    border-radius: 4px;
    cursor: pointer;
}

.settings-order-btn:hover {
    background: var(--hover-bg);
}

.settings-profile-stats {
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.settings-profile-stats div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.settings-profile-stats dt {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.settings-profile-stats dd {
    margin: 0;
    color: var(--text-color);
    font-size: 0.8rem;
    text-align: right;
    word-break: break-word;
}

.user-profile-stats-totals dd,
.user-profile-stats > div:not(.user-profile-stat-userid) dd {
    flex-shrink: 0;
    white-space: nowrap;
}

/* ---- Layout: sidebar toggle, container, sidebar, content ---- */
/* Sidebar Toggle Button */
.sidebar-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-right: 12px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-toggle-icon {
    display: block;
    width: 1em;
    font-size: 1.2rem;
    line-height: 1;
    font-weight: 700;
    text-align: center;
    color: var(--header-text);
}

/* Main Container */
.container {
    display: flex;
    margin-top: var(--header-height);
    height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    overflow-x: hidden;
    transition: margin-left 0.3s ease, opacity 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.sidebar .recent-docs {
    flex-shrink: 0;
}

.sidebar .nav-tree-wrapper {
    min-height: 0;
    overflow: hidden;
}

.sidebar.collapsed {
    margin-left: calc(-1 * var(--sidebar-width));
    opacity: 0;
}

/* Sidebar resize handle */
.sidebar-resize-handle {
    flex-shrink: 0;
    width: 6px;
    cursor: col-resize;
    background: transparent;
    border-right: 1px solid var(--border-color);
    user-select: none;
    -webkit-user-select: none;
}

.sidebar-resize-handle:hover {
    background: var(--hover-bg);
}

.sidebar-resize-handle:active,
.sidebar-resizing .sidebar-resize-handle {
    background: var(--link-color);
    opacity: 0.3;
}

.sidebar.collapsed + .sidebar-resize-handle {
    display: none;
}

.sidebar-backdrop {
    display: block;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    z-index: 45;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.sidebar-backdrop.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

body.sidebar-resizing {
    cursor: col-resize;
    user-select: none;
}

body.sidebar-resizing * {
    cursor: col-resize;
}

/* Nav tree wrapper: tree on top, expand/collapse buttons at bottom (no push) */
.nav-tree-wrapper {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    padding: 8px 8px 8px;
}

.nav-tree-wrapper .nav-tree {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 0 0 8px;
}

.nav-tree-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px 0;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
    gap: 8px;
}

.nav-tree-browse-tags {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
}

.nav-tree-browse-tags:hover {
    color: var(--link-color);
    text-decoration: underline;
}

.nav-tree-browse-tags:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 2px;
}

.nav-tree-browse-tags.active {
    color: var(--link-color);
    font-weight: 600;
}

.nav-tree-doc-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.nav-tree-actions {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-tree-btn {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-tree-btn:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

/* Navigation Tree */
.nav-tree {
    padding: 0 0 16px;
}

.nav-tree ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-tree > ul {
    padding: 0 8px;
}

.nav-tree li {
    margin: 0;
}

/* Tree item (folder or file) */
.tree-item {
    display: flex;
    align-items: center;
    padding: 6px 8px;
    cursor: pointer;
    border-radius: 6px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.875rem;
    user-select: none;
}

.tree-item:hover {
    background-color: var(--hover-bg);
}

.tree-item.active {
    background-color: var(--active-bg);
    color: var(--link-color);
}

/* Folder and file icons */
.tree-icon {
    width: 16px;
    height: 16px;
    margin-right: 6px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.tree-icon.folder::before {
    content: '▶';
    transition: transform 0.2s ease;
}

.tree-item.expanded .tree-icon.folder::before {
    transform: rotate(90deg);
}

.tree-icon.file::before {
    content: '📄';
}

.tree-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Nested items */
.nav-tree ul ul {
    padding-left: 16px;
    display: none;
}

.nav-tree ul ul.expanded {
    display: block;
}

/* ---- Content (main area, doc meta, markdown body) ---- */
/* Main Content Area */
.content {
    flex: 1;
    overflow-x: auto;
    overflow-y: auto;
    padding: 32px;
    max-width: 100%;
}

/* Document meta (breadcrumbs + reading time) */
.doc-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 900px;
    margin: 0 auto;
    padding-bottom: 8px;
    min-width: 0;
}

.doc-meta-row {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    min-width: 0;
}

.doc-meta-row-2 {
    gap: 12px;
}

/* Breadcrumbs */
.breadcrumbs {
    font-size: 0.875rem;
    color: var(--text-secondary);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.breadcrumb-link {
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s ease;
}

.breadcrumb-link:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

.breadcrumb-link:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Reading time */
.reading-time {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px 10px;
    border-radius: 12px;
    flex-shrink: 0;
}

.reading-time:empty {
    display: none;
}

/* Page tags (pills below breadcrumb) */
.doc-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.doc-tags:empty {
    display: none;
}

.doc-tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8125rem;
    line-height: 1.2;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease;
}

.doc-tag-pill:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary, var(--bg-secondary));
}

.doc-tag-pill:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Edit tags button (pill after presence) */
.doc-tags-edit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    align-self: center;
}
.doc-tags-edit-btn:hover {
    color: var(--link-color);
    background: var(--active-bg);
}
.doc-tags-edit-btn:focus-visible {
    outline: 2px solid var(--link-color);
    outline-offset: 1px;
}
.doc-tags-edit-btn.hidden {
    display: none;
}

/* Tags editor modal */
.tags-editor-modal-content {
    width: 380px;
}
.tags-editor-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.tags-editor-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 32px;
    padding: 6px 0;
}
.tags-editor-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 0.8125rem;
    background: var(--bg-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}
.tags-editor-chip-remove {
    padding: 0 2px;
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}
.tags-editor-chip-remove:hover {
    color: var(--error-text);
}
.tags-editor-add-row {
    display: flex;
    gap: 8px;
    align-items: center;
}
.tags-editor-input {
    flex: 1;
}
.tags-editor-add-btn {
    flex-shrink: 0;
}
.tags-editor-suggestions {
    max-height: 120px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
}
.tags-editor-suggestions .tags-editor-suggestion {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    text-align: left;
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
}
.tags-editor-suggestions .tags-editor-suggestion:hover,
.tags-editor-suggestions .tags-editor-suggestion[aria-selected="true"] {
    background: var(--hover-bg);
}

.reading-time-icon {
    font-size: 0.875rem;
}

/* Document owner (from front-matter) */
.doc-owner {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    white-space: nowrap;
    background: var(--bg-secondary);
    padding: 4px 10px;
    border-radius: 12px;
    flex-shrink: 0;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.doc-owner.hidden {
    display: none;
}

/* Bookmark (star) in doc-meta */
.doc-meta-bookmark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 28px;
    padding: 0;
    border: none;
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
}

.doc-meta-bookmark:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.doc-meta-bookmark:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.doc-meta-bookmark.is-bookmarked {
    color: #e6a800;
}

.doc-meta-bookmark .bookmark-icon-filled.hidden {
    display: none;
}

.doc-meta-bookmark .bookmark-icon-outline.hidden {
    display: none;
}

.doc-meta-bookmark.hidden {
    display: none !important;
}

/* Page history (clock) button in doc-meta */
.doc-meta-history-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 28px;
    padding: 0;
    border: none;
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
}

.doc-meta-history-btn:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.doc-meta-history-btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.doc-meta-history-btn.hidden {
    display: none !important;
}

/* Page rating (stars gauge + click to rate) */
.page-rating {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 1rem;
    cursor: pointer;
    flex-shrink: 0;
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    align-self: center;
}

.page-rating:hover {
    border-color: var(--link-color);
}

.page-rating.hidden {
    display: none;
}

.page-reactions-row {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.page-rating-add-reaction {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    font-weight: 600;
}

.page-rating-add-reaction:hover {
    border-color: var(--link-color);
    color: var(--link-color);
    background: var(--active-bg);
}

.page-rating-add-reaction:focus-visible {
    outline: 2px solid var(--link-color);
    outline-offset: 1px;
}

/* Shared pill style for Subscribe and presence pills (match reading-time, doc-owner) */
.doc-meta-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.25rem;
    height: 2.25rem;
    padding: 0 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 12px;
    font-size: 0.875rem;
    line-height: 1;
    box-sizing: border-box;
    flex-shrink: 0;
    align-self: center;
}

.doc-meta-pill.hidden {
    display: none;
}

/* Subscribe as its own pill (same box as presence) */
.page-rating-subscribe-wrap .page-rating-subscribe-inner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100%;
    height: 100%;
    padding: 0 12px;
    border: none;
    border-radius: inherit;
    background: transparent;
    color: inherit;
    font-size: 0.8rem;
    line-height: 1.2;
    cursor: pointer;
    font-weight: 500;
    box-sizing: border-box;
}

.page-rating-subscribe-wrap {
    padding: 0;
    overflow: hidden;
}

/* Match Subscribe to reading-time/doc-owner size on first meta row */
.doc-meta-row .page-rating-subscribe-wrap {
    min-height: auto;
    height: auto;
    padding: 4px 10px;
}

.doc-meta-row .page-rating-subscribe-wrap .page-rating-subscribe-inner {
    padding: 0 8px;
}

.page-rating-subscribe-wrap:hover .page-rating-subscribe-inner {
    color: var(--link-color);
}

.page-rating-subscribe-wrap:hover {
    background: var(--active-bg);
    color: var(--link-color);
}

.page-rating-subscribe-wrap .page-rating-subscribe-inner:focus-visible {
    outline: 2px solid var(--link-color);
    outline-offset: 1px;
}

.page-rating-subscribe-wrap[data-subscribed="1"] {
    border-color: var(--link-color);
    background: var(--link-color);
    color: #fff;
}

.page-rating-subscribe-wrap[data-subscribed="1"] .page-rating-subscribe-inner {
    color: #fff;
}

.page-rating-subscribe-wrap[data-subscribed="1"]:hover {
    filter: brightness(1.08);
}

.page-rating-subscribe-wrap[data-subscribed="1"]:hover .page-rating-subscribe-inner {
    color: #fff;
}

.page-rating-subscribe-wrap.is-disabled {
    opacity: 0.7;
}

.page-rating-subscribe-wrap .page-rating-subscribe-inner:disabled {
    cursor: not-allowed;
}

.page-rating-stars {
    display: inline-flex;
    align-items: center;
    gap: 0;
    position: relative;
}

.page-rating-stars-outline {
    display: inline-flex;
    color: var(--text-secondary);
    opacity: 0.7;
}

.page-rating-stars-fill {
    position: absolute;
    left: 0;
    top: 0;
    display: inline-flex;
    color: var(--link-color);
    overflow: hidden;
    pointer-events: none;
}

.page-rating-stars-fill-inner {
    display: inline-flex;
}

.page-rating-stars svg {
    width: 1em;
    height: 1em;
    display: block;
}

/* Rate modal (reuse reaction modal overlay) */
.page-rating-modal .comment-reaction-modal-actions {
    margin-top: 12px;
}

.page-rating-modal-stars {
    display: flex;
    gap: 4px;
    margin: 8px 0;
}

.page-rating-modal-stars button {
    padding: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
}
.page-rating-modal-stars button svg {
    width: 1.5em;
    height: 1.5em;
    display: block;
}

.page-rating-modal-stars button:hover,
.page-rating-modal-stars button.selected {
    border-color: var(--link-color);
    color: var(--link-color);
    background: var(--active-bg);
}

/* Dead links (directories with no documents) */
.dead-link {
    color: var(--text-secondary);
    text-decoration: line-through;
    cursor: not-allowed;
    opacity: 0.7;
}

.breadcrumb-sep {
    margin: 0 4px;
    opacity: 0.7;
}

/* Markdown Content Styling */
.markdown-body {
    max-width: 900px;
    margin: 0 auto;
    font-size: var(--content-font-size);
}

/* Full width mode */
.content.full-width .doc-meta,
.content.full-width .markdown-body,
.content.full-width .backlinks-section,
.content.full-width .search-results-page,
.content.full-width .activity-feed-page {
    max-width: none;
}


/* Full-page loading overlay (prevents flash until init completes) */
.page-load-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary, #ffffff);
    color: var(--text-secondary, #57606a);
    text-align: center;
}

.page-load-overlay.hidden {
    display: none;
}

.page-load-overlay .loading-spinner {
    margin-bottom: 16px;
}

/* ---- Loading and empty states ---- */
/* Loading state */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
}

.loading-state.hidden {
    display: none;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--link-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Empty state */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
    min-height: 400px;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.6;
}

.empty-state h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 12px 0;
}

.empty-state p {
    margin: 8px 0;
    max-width: 500px;
    line-height: 1.6;
}

.empty-state-hint {
    margin-top: 24px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.empty-state-hint kbd {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.8125rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin-top: 24px;
    margin-bottom: 16px;
    font-weight: 600;
    line-height: 1.25;
    position: relative;
}

/* Heading anchor share button */
.heading-anchor-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    margin-left: 8px;
    padding: 0;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    vertical-align: middle;
    transition: opacity 0.2s, background 0.2s;
}

.markdown-body h1:hover .heading-anchor-btn,
.markdown-body h2:hover .heading-anchor-btn,
.markdown-body h3:hover .heading-anchor-btn,
.markdown-body h4:hover .heading-anchor-btn,
.markdown-body h5:hover .heading-anchor-btn,
.markdown-body h6:hover .heading-anchor-btn {
    opacity: 0.5;
}

.heading-anchor-btn:hover {
    opacity: 1 !important;
    background: var(--hover-bg);
    color: var(--text-color);
}

.markdown-body h1 {
    font-size: 2em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--border-color);
}

.markdown-body h2 {
    font-size: 1.5em;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--border-color);
}

.markdown-body h3 {
    font-size: 1.25em;
}

.markdown-body h4 {
    font-size: 1em;
}

.markdown-body p {
    margin-top: 0;
    margin-bottom: 16px;
}

.markdown-body a {
    color: var(--link-color);
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body ul,
.markdown-body ol {
    margin-top: 0;
    margin-bottom: 16px;
    padding-left: 2em;
}

.markdown-body li {
    margin-bottom: 4px;
}

.markdown-body li + li {
    margin-top: 4px;
}

/* Code styling */
.markdown-body code {
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 85%;
    padding: 0.2em 0.4em;
    background-color: var(--code-bg);
    border-radius: 6px;
}

.markdown-body pre {
    padding: 16px;
    overflow: auto;
    font-size: 85%;
    line-height: 1.45;
    background-color: var(--code-bg);
    border-radius: 6px;
    margin-bottom: 16px;
}

.markdown-body pre code {
    padding: 0;
    background-color: transparent;
    border-radius: 0;
    font-size: 100%;
}

/* Code block copy button */
.markdown-body pre {
    position: relative;
}

.code-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.markdown-body pre:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

/* Mermaid diagrams (Gantt, flowcharts, etc.) */
.markdown-body .mermaid {
    overflow-x: auto;
    margin: 1em 0;
    text-align: center;
}
.markdown-body .mermaid svg {
    max-width: 100%;
    height: auto;
}

/* Tables: horizontal scroll handled by .content overflow-x on small viewports */
.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 16px;
}

.markdown-body table th,
.markdown-body table td {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
}

.markdown-body table th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

.markdown-body table tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

/* Blockquotes */
.markdown-body blockquote {
    margin: 0 0 16px 0;
    padding: 0 16px;
    color: var(--text-secondary);
    border-left: 4px solid var(--border-color);
}

/* Admonitions / callout blocks (GitHub-style > [!NOTE], > [!WARNING], etc.) */
.markdown-body .admonition {
    margin: 16px 0;
    padding: 0;
    border-radius: 8px;
    border: 1px solid;
    overflow: hidden;
}
.markdown-body .admonition-title {
    padding: 10px 14px;
    font-weight: 600;
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.markdown-body .admonition-title::before {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    content: '';
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}
.markdown-body .admonition-content {
    padding: 12px 14px 14px;
    font-size: 0.9375rem;
    line-height: 1.6;
}
.markdown-body .admonition-content p:first-child { margin-top: 0; }
.markdown-body .admonition-content p:last-child { margin-bottom: 0; }
.markdown-body .admonition-content ul,
.markdown-body .admonition-content ol { margin: 0.5em 0; padding-left: 1.5em; }
.markdown-body .admonition-content code { font-size: 0.9em; }

/* Note */
.markdown-body .admonition-note {
    border-color: #0969da;
    background: rgba(9, 105, 218, 0.08);
}
.markdown-body .admonition-note .admonition-title {
    background: rgba(9, 105, 218, 0.12);
    color: #0550ae;
}
.markdown-body .admonition-note .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230550ae' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E");
}

/* Tip */
.markdown-body .admonition-tip {
    border-color: #1a7f37;
    background: rgba(26, 127, 55, 0.08);
}
.markdown-body .admonition-tip .admonition-title {
    background: rgba(26, 127, 55, 0.12);
    color: #116329;
}
.markdown-body .admonition-tip .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23116329' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9.663 17h4.673M12 3v1m6.364 1.636l-.707.707M21 12h-1M4 12H3m3.343-5.657l-.707-.707m2.828 9.9a5 5 0 117.072 0l-.548.547A3.374 3.374 0 0014 18.469V19a2 2 0 11-4 0v-.531c0-.895-.356-1.754-.988-2.386l-.548-.547z'/%3E%3C/svg%3E");
}

/* Important */
.markdown-body .admonition-important {
    border-color: #8250df;
    background: rgba(130, 80, 223, 0.08);
}
.markdown-body .admonition-important .admonition-title {
    background: rgba(130, 80, 223, 0.12);
    color: #6639ba;
}
.markdown-body .admonition-important .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236639ba' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z'/%3E%3C/svg%3E");
}

/* Warning */
.markdown-body .admonition-warning {
    border-color: #9a6700;
    background: rgba(154, 103, 0, 0.08);
}
.markdown-body .admonition-warning .admonition-title {
    background: rgba(154, 103, 0, 0.12);
    color: #7d4e00;
}
.markdown-body .admonition-warning .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237d4e00' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10.29 3.86L1.82 18a2 2 0 001.71 3h16.94a2 2 0 001.71-3L13.71 3.86a2 2 0 00-3.42 0z'/%3E%3Cpath d='M12 9v4M12 17h.01'/%3E%3C/svg%3E");
}

/* Caution */
.markdown-body .admonition-caution {
    border-color: #cf222e;
    background: rgba(207, 34, 46, 0.08);
}
.markdown-body .admonition-caution .admonition-title {
    background: rgba(207, 34, 46, 0.12);
    color: #a0111d;
}
.markdown-body .admonition-caution .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a0111d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z'/%3E%3C/svg%3E");
}

/* Danger */
.markdown-body .admonition-danger {
    border-color: #cf222e;
    background: rgba(207, 34, 46, 0.1);
}
.markdown-body .admonition-danger .admonition-title {
    background: rgba(207, 34, 46, 0.15);
    color: #a0111d;
}
.markdown-body .admonition-danger .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a0111d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='15' y1='9' x2='9' y2='15'/%3E%3Cline x1='9' y1='9' x2='15' y2='15'/%3E%3C/svg%3E");
}

/* Info (alias for Note) */
.markdown-body .admonition-info {
    border-color: #0969da;
    background: rgba(9, 105, 218, 0.08);
}
.markdown-body .admonition-info .admonition-title {
    background: rgba(9, 105, 218, 0.12);
    color: #0550ae;
}
.markdown-body .admonition-info .admonition-title::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230550ae' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E");
}

/* Dark theme admonitions */
[data-theme="dark"] .markdown-body .admonition-note,
[data-theme="dark"] .markdown-body .admonition-info {
    border-color: #58a6ff;
    background: rgba(88, 166, 255, 0.1);
}
[data-theme="dark"] .markdown-body .admonition-note .admonition-title,
[data-theme="dark"] .markdown-body .admonition-info .admonition-title {
    background: rgba(88, 166, 255, 0.15);
    color: #79c0ff;
}
[data-theme="dark"] .markdown-body .admonition-tip {
    border-color: #3fb950;
    background: rgba(63, 185, 80, 0.1);
}
[data-theme="dark"] .markdown-body .admonition-tip .admonition-title {
    background: rgba(63, 185, 80, 0.15);
    color: #56d364;
}
[data-theme="dark"] .markdown-body .admonition-important {
    border-color: #a371f7;
    background: rgba(163, 113, 247, 0.1);
}
[data-theme="dark"] .markdown-body .admonition-important .admonition-title {
    background: rgba(163, 113, 247, 0.15);
    color: #bc8cff;
}
[data-theme="dark"] .markdown-body .admonition-warning {
    border-color: #d29922;
    background: rgba(210, 153, 34, 0.1);
}
[data-theme="dark"] .markdown-body .admonition-warning .admonition-title {
    background: rgba(210, 153, 34, 0.15);
    color: #e3b341;
}
[data-theme="dark"] .markdown-body .admonition-caution,
[data-theme="dark"] .markdown-body .admonition-danger {
    border-color: #f85149;
    background: rgba(248, 81, 73, 0.1);
}
[data-theme="dark"] .markdown-body .admonition-caution .admonition-title,
[data-theme="dark"] .markdown-body .admonition-danger .admonition-title {
    background: rgba(248, 81, 73, 0.15);
    color: #ff7b72;
}

/* Horizontal rule */
.markdown-body hr {
    height: 0.25em;
    padding: 0;
    margin: 24px 0;
    background-color: var(--border-color);
    border: 0;
}

/* Images */
.markdown-body img {
    max-width: 100%;
    height: auto;
}

/* Task lists */
.markdown-body input[type="checkbox"] {
    margin-right: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
    .toc-floating {
        display: none !important;
    }

    .font-size-controls,
    .width-toggle-btn,
    .share-btn,
    .download-btn,
    .star-dropdown-wrap,
    .pagenotes-toggle-btn,
    .activity-feed-btn {
        display: none !important;
    }

    body.is-mobile .menu-item.responsive-control,
    body.is-tablet .menu-item.responsive-control {
        display: flex;
    }

    .comment-reaction-modal {
        width: min(560px, calc(100vw - 28px));
        max-height: calc(100vh - 28px);
        overflow-y: auto;
    }

    .settings-card,
    .shortcuts-card,
    .project-info-card {
        width: min(680px, calc(100vw - 28px));
        max-height: calc(100vh - 28px);
        overflow-y: auto;
        overflow-x: hidden;
    }

    .comments-panel {
        padding: 16px;
    }

    .comment-item {
        padding: 14px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    :root {
        --sidebar-width: 260px;
    }

    .header {
        padding: env(safe-area-inset-top, 0px) 10px 0 10px;
    }

    .header-center {
        padding: 0 8px;
    }

    .search-container {
        width: min(340px, 34vw);
        min-width: 220px;
    }

    .menu-dropdown {
        min-width: 240px;
    }

    .content {
        padding: 24px;
    }

    .search-results-page {
        max-width: 100%;
        padding: 0.25rem 1rem 1.5rem;
    }

    .activity-feed-page {
        max-width: 100%;
        padding: 0.25rem 1rem 1.5rem;
    }

    .activity-feed-page .activity-feed-title {
        font-size: 1.15rem;
    }

    .activity-feed-page .activity-feed-filter-select {
        font-size: 0.82rem;
    }

    .search-results-page .search-results-page-title {
        font-size: 1.15rem;
    }

    .search-results-page .search-results-page-meta {
        font-size: 0.82rem;
        margin-bottom: 0.85rem;
    }

    .search-results-page .search-result-item {
        margin-bottom: 6px;
    }

    .page-search-nav {
        right: 14px;
        left: auto;
        max-width: calc(100vw - 28px);
    }
}

/* User profile modal: stacked layout and single-column stats from 900px down (tablet + mobile) */
@media (max-width: 900px) {
    .user-profile-card .settings-row.user-profile-row {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        justify-content: flex-start !important;
        gap: 4px;
        text-align: left;
    }

    .user-profile-card .user-profile-row input[type="email"],
    .user-profile-card .user-profile-row input[type="text"] {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box;
    }

    .user-profile-card .user-profile-stats,
    .user-profile-card .settings-profile-stats.user-profile-stats {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 10px 0;
    }

    .user-profile-card .user-profile-stats-totals {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 10px 0;
    }

    .user-profile-card .user-profile-stats-totals > div {
        display: flex !important;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        min-width: 0;
    }

    .user-profile-card .user-profile-stats dd {
        word-break: break-word;
        overflow-wrap: break-word;
        min-width: 0;
    }

    .user-profile-card .settings-profile-stats.user-profile-stats > div {
        min-width: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: calc(120px + env(safe-area-inset-top, 0px));
    }

    .header {
        height: var(--header-height);
        min-height: var(--header-height);
        max-height: var(--header-height);
        overflow: hidden;
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-areas:
            "left right"
            "center center";
        align-items: center;
        padding: calc(env(safe-area-inset-top, 0px) + 8px) 12px 8px 12px;
        padding-left: max(12px, env(safe-area-inset-left));
        padding-right: max(12px, env(safe-area-inset-right));
        column-gap: 8px;
        row-gap: 8px;
        overflow-x: hidden;
    }

    .header-left,
    .header-right {
        min-height: 40px;
        align-items: center;
    }

    .header-left {
        grid-area: left;
        flex: 1 1 0;
        min-width: 0;
    }

    .header-right {
        grid-area: right;
        min-width: 0;
        justify-self: end;
        gap: 6px;
        flex-wrap: nowrap;
    }

    .header-title-block {
        flex: 1 1 auto;
        min-width: 0;
        max-width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 2px;
    }

    .header h1 {
        font-size: 1.03rem;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        white-space: normal;
        overflow: hidden;
        text-overflow: ellipsis;
        line-height: 1.15;
        max-height: calc(2 * 1.15em);
    }

    .header-version {
        line-height: 1.1;
    }

    .header-center {
        grid-area: center;
        order: initial;
        flex: 0 0 auto;
        width: 100%;
        padding: 8px 0 0 0;
        min-height: 0;
    }

    .sidebar-toggle {
        margin-right: 8px;
    }

    .search-container {
        width: 100%;
        min-width: 0;
        max-width: none;
    }

    .search-results {
        width: 100%;
        max-height: min(52vh, 360px);
    }

    .menu-trigger {
        min-height: 44px;
        min-width: 44px;
        padding: 6px 10px;
    }

    .menu-dropdown {
        position: fixed;
        top: calc(var(--header-height) + 4px);
        right: max(12px, env(safe-area-inset-right));
        left: auto;
        min-width: min(280px, calc(100vw - 24px));
        width: min(280px, calc(100vw - 24px));
    }

    .container {
        height: calc(100vh - var(--header-height));
    }

    .sidebar {
        position: fixed;
        top: var(--header-height);
        left: 0;
        bottom: 0;
        z-index: 50;
        box-shadow: 4px 0 16px rgba(0, 0, 0, 0.24);
    }

    .sidebar.collapsed {
        margin-left: calc(-1 * var(--sidebar-width));
    }

    .sidebar-resize-handle {
        display: none !important;
    }

    .content {
        padding: 16px;
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
        -webkit-overflow-scrolling: touch;
    }

    .search-results-page {
        max-width: 100%;
        padding: 0.2rem 0.5rem 1rem;
    }

    .search-results-page .search-results-page-title {
        font-size: 1.05rem;
        margin-bottom: 0.35rem;
    }

    .search-results-page .search-results-page-meta {
        font-size: 0.78rem;
        margin-bottom: 0.65rem;
    }

    .search-results-page .search-result-item {
        border-radius: 5px;
        margin-bottom: 6px;
    }

    .activity-feed-page {
        max-width: 100%;
        padding: 0.2rem 0.5rem 1rem;
    }

    .activity-feed-page .activity-feed-title {
        font-size: 1.05rem;
        margin-bottom: 0.35rem;
    }

    .activity-feed-page .activity-feed-filter-select {
        font-size: 0.82rem;
    }

    .activity-feed-page .activity-feed-item {
        padding: 10px;
    }

    .activity-feed-page .activity-feed-item-label {
        font-size: 0.82rem;
    }

    .activity-feed-page .activity-feed-item-doc {
        font-size: 0.72rem;
    }

    .activity-feed-page .activity-feed-item-meta {
        font-size: 0.72rem;
    }

    .activity-feed-page .activity-feed-filters {
        flex-wrap: wrap;
    }

    .activity-feed-page .activity-feed-header {
        gap: 8px;
    }

    .backlinks-section {
        margin-top: 1.5rem;
        padding-top: 1rem;
    }

    .backlinks-section .backlinks-title {
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }

    .backlinks-section .backlinks-card {
        padding: 8px 12px;
        font-size: 0.82rem;
    }

    .search-results-page .search-result-title {
        font-size: 0.82rem;
    }

    .search-results-page .search-result-path {
        font-size: 0.72rem;
    }

    .search-results-page .search-result-snippet {
        font-size: 0.77rem;
        line-height: 1.35;
    }

    .doc-meta {
        flex-wrap: wrap;
        gap: 8px;
        overflow-x: hidden;
        max-width: 100%;
    }

    .doc-meta-row,
    .doc-meta-row-2 {
        flex-wrap: wrap;
        gap: 8px;
        min-width: 0;
    }

    .doc-meta-row .breadcrumbs {
        flex: 1 1 auto;
        min-width: 0;
        max-width: 100%;
    }

    .doc-tags {
        flex: 1 1 auto;
        min-width: 0;
    }

    .doc-tag-pill {
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .doc-meta-row-2 .page-rating,
    .doc-meta-row-2 .doc-presence,
    .doc-meta-row-2 .doc-tags-edit-btn {
        flex-shrink: 0;
    }

    .markdown-body pre {
        padding: 12px;
    }

    .comment-item-reply {
        margin-left: 10px;
    }

    .comment-form-row {
        flex-direction: column;
    }

    .comment-inline-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .page-search-nav {
        right: 10px;
        left: 10px;
        width: auto;
        justify-content: space-between;
        gap: 8px;
        bottom: 68px;
    }

    .to-top-btn {
        right: 14px;
        bottom: 18px;
    }

    .settings-card,
    .shortcuts-card,
    .project-info-card,
    .user-profile-card {
        padding: 16px;
    }

    .user-profile-card {
        max-width: min(520px, calc(100vw - 24px));
    }

    .user-profile-avatar-wrap {
        flex-wrap: wrap;
    }

    /* Override .settings-row so profile rows stack: label above input, full-width inputs */
    .user-profile-card .settings-row.user-profile-row {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        justify-content: flex-start !important;
        gap: 4px;
        text-align: left;
    }

    .user-profile-card .user-profile-row span {
        font-size: 0.85rem;
    }

    .user-profile-card .user-profile-row input[type="email"],
    .user-profile-card .user-profile-row input[type="text"] {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box;
    }

    /* Stats: single column so each stat has full width */
    .user-profile-card .user-profile-stats,
    .user-profile-card .settings-profile-stats.user-profile-stats {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 10px 0;
    }

    .user-profile-card .user-profile-stats-totals {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 10px 0;
    }

    .user-profile-card .user-profile-stats-totals > div {
        display: flex !important;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        min-width: 0;
    }

    .user-profile-card .user-profile-stats dd {
        word-break: break-word;
        overflow-wrap: break-word;
        min-width: 0;
    }

    .user-profile-card .settings-profile-stats.user-profile-stats > div {
        min-width: 0;
    }

    .user-profile-actions {
        flex-wrap: wrap;
    }

    .signup-welcome-card {
        width: min(560px, calc(100vw - 24px));
        padding: 16px;
        overflow-y: auto;
        max-height: calc(100vh - 40px);
    }

    .signup-welcome-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .signup-welcome-logo {
        width: 72px;
        height: 72px;
        animation: none;
    }

    .signup-welcome-cta {
        width: 100%;
    }

    /* Edit-page modal: full viewport on mobile, no overflow (edge case when resizing from desktop) */
    .edit-page-modal-content {
        width: 100vw;
        height: 100vh;
        min-width: 0;
        min-height: 0;
        max-width: 100vw;
        max-height: 100vh;
        resize: none;
    }

    .edit-page-modal-save,
    .edit-page-modal-cancel {
        min-height: 44px;
        min-width: 44px;
    }

    /* Diagram modal: ensure touch targets on mobile */
    .diagram-modal-toolbar button {
        min-height: 44px;
        min-width: 44px;
    }

    /* Page history modal: fit mobile viewport */
    .page-history-modal-content {
        min-width: 0;
        width: calc(100vw - 24px);
        height: 85vh;
        min-height: 200px;
    }

    /* Command palette: reduce padding and results height on mobile */
    .command-palette-overlay {
        padding: 40px 16px 16px;
    }
    .command-palette-results {
        max-height: min(50vh, 280px);
    }

    /* Add page modal: scrollable body when resizing from tablet */
    .add-page-modal-content {
        max-height: 90vh;
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }
    .add-page-modal-body {
        overflow-y: auto;
        flex: 1;
        min-height: 0;
    }

    /* Tags editor: fit mobile for edge cases (e.g. resize from tablet) */
    .tags-editor-modal-content {
        width: calc(100vw - 24px);
        max-width: none;
        max-height: 80vh;
        overflow-y: auto;
    }

    /* Hide Edit page setting on mobile; edit is only available from tablet up */
    #settingsShowEditPageRow {
        display: none !important;
    }

    /* Primary action touch targets on mobile */
    .login-gate-btn {
        min-height: 44px;
        min-width: 44px;
    }

    .to-top-btn {
        min-height: 44px;
        min-width: 44px;
    }

    .code-copy-btn {
        min-height: 44px;
        min-width: 44px;
    }
}

@media (max-width: 420px) {
    .header {
        padding: max(8px, env(safe-area-inset-top, 0px)) 10px 8px 10px;
        column-gap: 6px;
    }

    .header-right {
        gap: 4px;
    }

    .sidebar-toggle {
        margin-right: 6px;
        padding: 6px;
    }

    .menu-trigger {
        min-height: 40px;
        min-width: 40px;
        padding: 6px 8px;
    }

    .profile-circle-btn {
        width: 36px;
        height: 36px;
    }

    .header-version {
        display: none;
    }

    .doc-meta .breadcrumbs {
        font-size: 0.8125rem;
    }

    .doc-meta .reading-time,
    .doc-meta .doc-owner {
        font-size: 0.75rem;
    }

    .user-profile-card {
        padding: 12px;
    }

    .user-profile-section {
        padding: 10px;
    }

    .user-profile-avatar-text-input {
        min-width: 3em;
        width: 3em;
    }

    /* Confirm modal: fit narrow phones */
    .confirm-card {
        min-width: 0;
        width: calc(100vw - 24px);
        max-width: none;
    }
}

/* ---- Print ---- */
/* Print: show only main content (no header, sidebar, breadcrumbs, or chrome) */
@media print {
    .header,
    .sidebar,
    .sidebar-toggle,
    .search-container,
    .header-menu,
    .header-center,
    .page-search-nav,
    .breadcrumbs,
    .toc-floating,
    .to-top-btn {
        display: none !important;
    }

    .container {
        display: block;
    }

    .content {
        overflow: visible;
        padding: 0;
    }

    body {
        overflow: visible;
        background: #fff;
        color: #000;
    }

    .markdown-body {
        max-width: 100%;
    }

    .markdown-body a {
        color: #000;
        text-decoration: underline;
    }

    .markdown-body pre {
        background: #f5f5f5;
        border: 1px solid #ddd;
    }
}

/* Keyboard shortcuts overlay */
.shortcuts-overlay {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.shortcuts-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.shortcuts-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
}

.shortcuts-card {
    position: relative;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: scale(0.98);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.shortcuts-overlay.visible .shortcuts-card,
.settings-overlay.visible .shortcuts-card,
.project-info-overlay.visible .shortcuts-card,
.user-profile-overlay.visible .shortcuts-card,
.first-load-overlay.visible .shortcuts-card {
    transform: scale(1);
    opacity: 1;
}

.shortcuts-title {
    margin: 0 0 16px 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.shortcuts-list {
    margin: 0 0 20px 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 24px;
    font-size: 0.875rem;
}

.shortcuts-list dt {
    margin: 0;
    font-weight: 600;
    color: var(--text-color);
}

.shortcuts-list dd {
    margin: 0;
    color: var(--text-secondary);
}

.shortcuts-subtitle {
    margin: 16px 0 8px 0;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.shortcuts-close {
    display: block;
    width: 100%;
    min-height: 44px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    color: var(--text-color);
}

.shortcuts-close:hover {
    background: var(--hover-bg);
}

/* Markdown cheat sheet overlay (in edit mode) */
.markdown-cheatsheet-overlay {
    z-index: 550;
}
.markdown-cheatsheet-overlay.hidden {
    display: none !important;
}
.markdown-cheatsheet-overlay.visible {
    display: flex;
}
.markdown-cheatsheet-card {
    max-width: 560px;
}
.markdown-cheatsheet-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 16px;
}
.markdown-cheatsheet-tab {
    padding: 6px 12px;
    font-size: 0.8125rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
}
.markdown-cheatsheet-tab:hover {
    background: var(--hover-bg);
}
.markdown-cheatsheet-tab.active {
    background: var(--accent-color, #2563eb);
    color: #fff;
    border-color: var(--accent-color, #2563eb);
}
.markdown-cheatsheet-content {
    margin-bottom: 20px;
    min-height: 180px;
}
.markdown-cheatsheet-panel {
    display: none;
}
.markdown-cheatsheet-panel.active {
    display: block;
}
.markdown-cheatsheet-grid {
    margin: 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 24px;
    font-size: 0.875rem;
}
.markdown-cheatsheet-grid dt {
    margin: 0;
    font-weight: 500;
    color: var(--text-color);
}
.markdown-cheatsheet-grid dd {
    margin: 0;
    color: var(--text-secondary);
}
.markdown-cheatsheet-grid code {
    font-family: ui-monospace, monospace;
    font-size: 0.8125rem;
    padding: 2px 6px;
    background: var(--bg-secondary);
    border-radius: 4px;
    word-break: break-word;
}
.markdown-cheatsheet-example {
    margin: 12px 0 0;
    padding: 10px 12px;
    background: var(--code-bg, rgba(0,0,0,0.06));
    border-radius: 6px;
    font-family: ui-monospace, monospace;
    font-size: 0.8125rem;
    overflow-x: auto;
}
.markdown-cheatsheet-example code {
    background: none;
    padding: 0;
}
.markdown-cheatsheet-note {
    margin: 12px 0 0;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.markdown-cheatsheet-note a {
    color: var(--accent-color, #2563eb);
}
.edit-page-cheatsheet-btn {
    padding: 6px 10px;
    font-size: 1.125rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
}
.edit-page-cheatsheet-btn:hover {
    background: var(--hover-bg);
}

/* Command palette overlay (Ctrl+K / Cmd+K) */
.command-palette-overlay {
    position: fixed;
    inset: 0;
    z-index: 310;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 80px 20px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.command-palette-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.command-palette-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
}

.command-palette-card {
    position: relative;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: scale(0.98);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.command-palette-overlay.visible .command-palette-card {
    transform: scale(1);
    opacity: 1;
}

.command-palette-input {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-color);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    border-radius: 8px 8px 0 0;
    outline: none;
}

.command-palette-input::placeholder {
    color: var(--text-secondary);
}

.command-palette-results {
    max-height: 320px;
    overflow-y: auto;
    padding: 8px 0;
}

.command-palette-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
}

.command-palette-item:hover,
.command-palette-item.selected {
    background: var(--hover-bg, rgba(0, 0, 0, 0.05));
}

[data-theme="dark"] .command-palette-item:hover,
[data-theme="dark"] .command-palette-item.selected {
    background: var(--hover-bg, rgba(255, 255, 255, 0.08));
}

.command-palette-item-shortcut {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.command-palette-item-type {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.command-palette-no-results {
    padding: 16px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Project info overlay (extends .shortcuts-overlay) */
.project-info-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.user-profile-overlay {
    z-index: 320;
}

.user-profile-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.user-profile-card {
    max-width: 520px;
    width: 100%;
    box-sizing: border-box;
    max-height: 85vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.user-profile-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 16px;
}

.user-profile-tab {
    padding: 6px 12px;
    font-size: 0.8125rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
}

.user-profile-tab:hover {
    background: var(--hover-bg);
}

.user-profile-tab.active {
    background: var(--accent-color, #2563eb);
    color: #fff;
    border-color: var(--accent-color, #2563eb);
}

.user-profile-content {
    margin-bottom: 20px;
    min-height: 180px;
}

.user-profile-panel {
    display: none;
}

.user-profile-panel.active {
    display: block;
}

.user-profile-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.user-profile-footer-left,
.user-profile-footer-center {
    flex: 1;
    min-width: 0;
}

.user-profile-footer-right {
    display: flex;
    align-items: center;
}

.user-profile-description {
    margin: 0 0 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-profile-section {
    margin-bottom: 14px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
    min-width: 0;
}

.user-profile-avatar-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    min-width: 0;
}

.user-profile-avatar,
.user-profile-avatar-placeholder {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.user-profile-avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--comment-avatar-bg, #1f6feb);
}

.user-profile-initials {
    pointer-events: none;
    user-select: none;
}

.user-profile-avatar[hidden] + .user-profile-avatar-placeholder {
    display: flex;
}

.user-profile-avatar:not([hidden]) + .user-profile-avatar-placeholder {
    display: none;
}

.user-profile-avatar-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.user-profile-avatar-actions.hidden {
    display: none !important;
}

.user-profile-avatar-upload-btn,
.user-profile-avatar-clear-btn {
    flex-shrink: 0;
}

.user-profile-avatar-clear-btn {
    color: var(--text-danger, #cf222e);
}

.user-profile-color-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.user-profile-color-label input[type="color"] {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1px;
    cursor: pointer;
    background: transparent;
}

/* Hide customisation rows when avatar image is shown */
.user-profile-avatar:not([hidden]) ~ .user-profile-avatar-actions .user-profile-color-label,
.user-profile-avatar:not([hidden]) ~ .user-profile-avatar-actions .user-profile-avatar-text-row {
    display: none;
}

/* Avatar text input row */
.user-profile-avatar-text-row {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    min-width: 0;
}

.user-profile-avatar-text-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 0;
}

.user-profile-avatar-text-input {
    min-width: 2.8em;
    width: 2.8em;
    padding: 6px 8px;
    font-size: 0.9rem;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary, #fff);
    color: var(--text-primary);
    font-weight: 600;
    box-sizing: border-box;
}

.user-profile-emoji-toggle {
    font-size: 1.1rem;
    padding: 2px 6px;
    line-height: 1;
    cursor: pointer;
}

/* Profile emoji picker grid (inside modal) */
.profile-emoji-grid {
    max-height: 260px;
    overflow-y: auto;
}

.user-profile-section-title {
    margin: 0 0 10px;
    border-top: none;
    padding-top: 0;
}

.user-profile-row {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: center;
    gap: 8px 14px;
    margin-bottom: 10px;
    cursor: default;
    min-width: 0;
}

.user-profile-row input[type="email"],
.user-profile-row input[type="text"] {
    width: 100%;
    min-width: 0;
    min-height: 34px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.92rem;
    box-sizing: border-box;
}

.user-profile-row input[type="email"]:focus,
.user-profile-row input[type="text"]:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 2px var(--active-bg);
}

.user-profile-row span {
    color: var(--text-secondary);
    font-weight: 600;
}

.user-profile-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 4px;
}

.user-profile-actions.hidden {
    display: none !important;
}

.user-profile-role-row.hidden {
    display: none !important;
}

.user-profile-dirty-hint {
    font-size: 0.8rem;
    color: #e53935;
    font-style: italic;
    font-weight: 600;
    animation: profile-dirty-fadein 0.3s ease;
}

@keyframes profile-dirty-fadein {
    from { opacity: 0; }
    to { opacity: 1; }
}

.user-profile-stats-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.user-profile-stats-loading .loading-spinner {
    margin-bottom: 0;
}

.user-profile-stats-loading.hidden,
#settingsProfileStats.hidden {
    display: none !important;
}

.user-profile-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px 0;
}

.user-profile-stat-userid {
    grid-column: 1 / -1;
    padding-bottom: 8px;
    margin-bottom: 2px;
    border-bottom: 1px dashed var(--border-color);
}

.user-profile-userid-bottom {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-color);
}

.user-profile-stat-userid dd {
    font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 0.76rem;
    text-align: left;
    word-break: break-all;
    overflow-wrap: break-word;
    min-width: 0;
}

.user-profile-stats-totals {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px 0;
}

.user-profile-stats > div:not(.user-profile-stat-userid):not(.user-profile-stats-totals) {
    grid-column: 1 / -1;
}

/* Profile card: stats section contained and one row per stat (label | value) */
.user-profile-card .user-profile-section {
    min-width: 0;
    overflow: hidden;
}

.user-profile-card .user-profile-stats,
.user-profile-card .settings-profile-stats.user-profile-stats {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 10px 0;
    min-width: 0;
}

.user-profile-card .user-profile-stats > div,
.user-profile-card .user-profile-stats-totals > div {
    display: grid !important;
    grid-template-columns: minmax(140px, max-content) 1fr;
    gap: 12px;
    align-items: center;
    min-width: 0;
}

.user-profile-card .user-profile-stats dt {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.user-profile-card .user-profile-stats dd {
    margin: 0;
    color: var(--text-color);
    font-size: 0.8rem;
    text-align: right;
    min-width: 0;
    word-break: break-word;
    overflow-wrap: break-word;
}

.user-profile-card .user-profile-stat-userid dd {
    white-space: normal;
}

.user-profile-card .user-profile-stats-totals {
    grid-column: 1 / -1;
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 10px 0;
    min-width: 0;
}

.user-profile-card .user-profile-stats-totals dd,
.user-profile-card .user-profile-stats > div:not(.user-profile-stat-userid) dd {
    white-space: nowrap;
}

.first-load-overlay {
    z-index: 420;
}

.first-load-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.first-load-card {
    max-width: 420px;
}

.first-load-description {
    margin: 0 0 14px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.first-load-field {
    margin-bottom: 10px;
}

.first-load-field input[type="email"],
.first-load-field input[type="text"] {
    width: 210px;
    max-width: 100%;
    min-height: 32px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 0.875rem;
    line-height: 1.2;
    box-sizing: border-box;
}

.first-load-field input[type="email"]:focus,
.first-load-field input[type="text"]:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.first-load-checkbox {
    justify-content: flex-start;
    gap: 10px;
    margin-top: 6px;
}

.first-load-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 14px;
}

/* One-time signup welcome celebration modal */
.signup-welcome-overlay {
    position: fixed;
    inset: 0;
    z-index: 460;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.signup-welcome-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.signup-welcome-backdrop {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 10%, rgba(88, 166, 255, 0.35), rgba(0, 0, 0, 0.68) 55%);
}

.signup-welcome-card {
    position: relative;
    width: min(760px, calc(100vw - 40px));
    border-radius: 14px;
    border: 1px solid var(--link-color);
    background: linear-gradient(140deg, var(--bg-color), var(--bg-secondary));
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    padding: 22px;
    transform: translateY(8px) scale(0.98);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
    overflow: hidden;
}

.signup-welcome-overlay.visible .signup-welcome-card {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.signup-welcome-glow {
    position: absolute;
    border-radius: 999px;
    filter: blur(1px);
    opacity: 0.45;
    pointer-events: none;
}

.signup-welcome-glow-a {
    width: 220px;
    height: 220px;
    top: -90px;
    right: -50px;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.8), rgba(88, 166, 255, 0));
    animation: signupGlowFloatA 4.8s ease-in-out infinite;
}

.signup-welcome-glow-b {
    width: 180px;
    height: 180px;
    bottom: -80px;
    left: -40px;
    background: radial-gradient(circle, rgba(31, 111, 235, 0.55), rgba(31, 111, 235, 0));
    animation: signupGlowFloatB 5.4s ease-in-out infinite;
}

.signup-welcome-spark {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 16px rgba(255, 255, 255, 0.85);
    opacity: 0.65;
    pointer-events: none;
}

.signup-welcome-spark-1 { top: 26px; right: 118px; animation: signupSpark 2.2s ease-in-out infinite; }
.signup-welcome-spark-2 { top: 58px; right: 60px; animation: signupSpark 2.8s ease-in-out infinite 0.4s; }
.signup-welcome-spark-3 { top: 98px; right: 92px; animation: signupSpark 2.5s ease-in-out infinite 0.9s; }

.signup-welcome-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.08) 45%, transparent 80%);
    pointer-events: none;
}

.signup-welcome-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
    font-size: 1rem;
}

.signup-welcome-header {
    display: flex;
    align-items: center;
    gap: 18px;
}

.signup-welcome-logo {
    width: 90px;
    height: 90px;
    border-radius: 16px;
    background: #fff;
    object-fit: contain;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
    animation: signupLogoPulse 3.2s ease-in-out infinite;
}

.signup-welcome-logo.logo-fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--link-color);
    padding: 10px;
}

.signup-welcome-kicker {
    margin: 0 0 4px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--link-color);
    font-weight: 700;
}

.signup-welcome-headline h2 {
    margin: 0;
    font-size: clamp(1.25rem, 2.6vw, 1.9rem);
    color: var(--text-color);
    line-height: 1.2;
}

.signup-welcome-subtitle {
    margin: 8px 0 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.signup-welcome-body {
    margin-top: 14px;
    color: var(--text-color);
    font-size: 0.95rem;
}

.signup-welcome-badges {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.signup-welcome-badges span {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.signup-welcome-cta {
    margin-top: 16px;
    min-width: 160px;
    box-shadow: 0 8px 20px rgba(31, 111, 235, 0.35);
}

@keyframes signupGlowFloatA {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.42; }
    50% { transform: translateY(-8px) scale(1.05); opacity: 0.58; }
}

@keyframes signupGlowFloatB {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.35; }
    50% { transform: translateY(10px) scale(1.04); opacity: 0.52; }
}

@keyframes signupSpark {
    0%, 100% { transform: translateY(0) scale(0.75); opacity: 0.35; }
    50% { transform: translateY(-4px) scale(1); opacity: 0.85; }
}

@keyframes signupLogoPulse {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-1px) scale(1.03); }
}

.project-info-card {
    max-width: 480px;
    max-height: 85vh;
    overflow-y: auto;
}

.project-info-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 16px;
}

.project-info-tab {
    padding: 6px 12px;
    font-size: 0.8125rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
}

.project-info-tab:hover {
    background: var(--hover-bg);
}

.project-info-tab.active {
    background: var(--accent-color, #2563eb);
    color: #fff;
    border-color: var(--accent-color, #2563eb);
}

.project-info-content-wrap {
    margin-bottom: 20px;
    min-height: 180px;
}

.project-info-panel {
    display: none;
}

.project-info-panel.active {
    display: block;
}

.project-info-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.project-info-footer-left,
.project-info-footer-center {
    flex: 1;
    min-width: 0;
}

.project-info-footer-right {
    display: flex;
    align-items: center;
}

.project-info-content {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-info-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.project-info-group-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.project-info-row {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.project-info-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.project-info-value {
    font-size: 0.875rem;
    color: var(--text-color);
    word-break: break-word;
}

.project-info-value.project-info-value-link a {
    color: var(--link-color);
    text-decoration: none;
}

.project-info-value.project-info-value-link a:hover {
    text-decoration: underline;
}

.project-info-value-empty {
    color: var(--text-secondary);
    font-style: italic;
}

.project-info-contributors {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.project-info-contributors li {
    font-size: 0.875rem;
    color: var(--text-color);
}

/* Diagram expand button (on each mermaid diagram) */
.mermaid {
    position: relative;
}

.diagram-expand-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.mermaid:hover .diagram-expand-btn {
    opacity: 1;
}

.diagram-expand-btn:hover {
    background: var(--hover-bg);
}

/* Diagram modal overlay */
.diagram-modal {
    position: fixed;
    inset: 0;
    z-index: 400;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.diagram-modal.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.diagram-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
}

.diagram-modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Diagram modal toolbar */
.diagram-modal-toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.diagram-modal-toolbar button {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s;
}

.diagram-modal-toolbar button:hover {
    background: var(--hover-bg);
}

#diagramZoomIn,
#diagramZoomOut {
    width: 40px;
    padding: 8px;
    font-size: 1.25rem;
    font-weight: bold;
}

#diagramZoomLevel {
    min-width: 60px;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-color);
    font-weight: 600;
}

#diagramModalClose {
    position: absolute;
    right: 16px;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    min-height: 44px;
    min-width: 44px;
    padding: 4px 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#diagramModalClose:hover {
    background: var(--hover-bg);
}

/* Diagram modal viewport (pan/zoom area) */
.diagram-modal-viewport {
    flex: 1;
    overflow: hidden;
    position: relative;
    cursor: grab;
    background: var(--bg-secondary);
}

.diagram-modal-viewport:active {
    cursor: grabbing;
}

.diagram-modal-viewport.dragging {
    cursor: grabbing;
}

/* Diagram container (holds the SVG, gets transformed) */
.diagram-modal-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transform-origin: center center;
    transition: transform 0.1s ease-out;
}

.diagram-modal-container.no-transition {
    transition: none;
}

.diagram-modal-container svg {
    display: block;
}

/* Edit page modal */
.edit-page-modal {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.edit-page-modal.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.edit-page-modal.hidden {
    display: none !important;
}

/* Add page modal */
.add-page-modal {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s, visibility 0.2s;
}
.add-page-modal.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.add-page-modal.hidden {
    display: none !important;
}
.add-page-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}
.add-page-modal-content {
    position: relative;
    z-index: 1;
    width: 420px;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}
.add-page-modal-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.add-page-modal-title {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-color);
}
.add-page-modal-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 4px;
    color: var(--text-secondary);
}
.add-page-modal-close:hover {
    color: var(--text-color);
}
.add-page-modal-body {
    padding: 20px;
}
.add-page-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.add-page-type-toggle {
    display: flex;
    gap: 16px;
}
.add-page-radio-wrap {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.875rem;
}
.add-page-radio-wrap input {
    margin: 0;
}
.add-page-label {
    font-size: 0.875rem;
    font-weight: 500;
}
.add-page-select,
.add-page-input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    background: var(--bg-color);
    color: var(--text-color);
}
.add-page-actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}
.add-page-actions .add-page-btn-primary,
.add-page-actions .add-page-btn-secondary {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid var(--border-color);
}
.add-page-actions .add-page-btn-primary {
    background: var(--accent-color, var(--link-color));
    color: #fff;
    border-color: transparent;
}
.add-page-actions .add-page-btn-primary:hover {
    opacity: 0.9;
}
.add-page-actions .add-page-btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-color);
}
.add-page-actions .add-page-btn-secondary:hover {
    background: var(--hover-bg);
}
.add-page-actions .add-page-btn-primary:focus-visible,
.add-page-actions .add-page-btn-secondary:focus-visible {
    outline: 2px solid var(--link-color);
    outline-offset: 1px;
}
.add-page-hint {
    margin: 0 0 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.add-page-template-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.add-page-template-search {
    width: 100%;
}
.add-page-template-row.hidden {
    display: none !important;
}
.add-page-template-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}
.add-page-template-wrap .add-page-select {
    flex: 1;
}
.add-page-template-preview-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.add-page-template-preview-btn:hover {
    color: var(--text-color);
    background: var(--hover-bg);
}
.template-preview-popover {
    position: fixed;
    z-index: 501;
    min-width: 200px;
    max-width: 320px;
    padding: 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.template-preview-popover.hidden {
    display: none !important;
}
.template-preview-popover .template-preview-desc {
    margin: 0 0 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
}
.template-preview-popover .template-preview-summary {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Nav tree context menu */
.nav-tree-context-menu {
    position: fixed;
    z-index: 1000;
    min-width: 160px;
    padding: 4px 0;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.nav-tree-context-menu button {
    display: block;
    width: 100%;
    padding: 8px 16px;
    border: none;
    background: none;
    text-align: left;
    font-size: 0.875rem;
    cursor: pointer;
    color: var(--text-color);
}
.nav-tree-context-menu button:hover {
    background: var(--hover-bg);
}
.nav-tree-context-menu button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tree-item-delete-icon {
    margin-left: auto;
    opacity: 0.4;
    cursor: pointer;
    font-size: 0.875rem;
}
.tree-item-delete-icon:hover {
    opacity: 0.8;
}

.tree-item-drag-handle {
    cursor: grab;
    opacity: 0.5;
    padding: 0 4px;
    font-size: 0.875rem;
}
.tree-item-drag-handle:hover {
    opacity: 0.8;
}
.tree-item-drag-handle:active {
    cursor: grabbing;
}
.tree-item.tree-item-dragging {
    opacity: 0.5;
}
.tree-item.tree-item-drag-over {
    background: var(--hover-bg);
}

/* Page history modal */
.page-history-modal {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.page-history-modal.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.page-history-modal.hidden {
    display: none !important;
}

.page-history-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.page-history-modal-content {
    position: relative;
    z-index: 1;
    width: 75vw;
    height: 75vh;
    min-width: 400px;
    min-height: 300px;
    max-width: 96vw;
    max-height: 96vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.page-history-modal-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.page-history-modal-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    flex: 1;
}

.page-history-modal-close {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

.page-history-modal-close:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.page-history-modal-body {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: 16px;
    overflow: hidden;
}

.page-history-version-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    flex-shrink: 0;
}

.page-history-version-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.page-history-version-select {
    flex: 1;
    min-width: 0;
    max-width: 320px;
    padding: 6px 10px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
}

.page-history-restore-btn {
    padding: 6px 14px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
}

.page-history-restore-btn:hover {
    background: var(--hover-bg);
    border-color: var(--link-color);
    color: var(--link-color);
}

.page-history-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.page-history-empty.hidden {
    display: none !important;
}

.page-history-diff-wrap {
    flex: 1;
    min-height: 0;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
}

.page-history-diff-view {
    padding: 12px;
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
    font-size: 0.8125rem;
    line-height: 1.5;
}

.page-history-diff-view .d2h-wrapper {
    font-size: 0.8125rem;
}

.page-history-diff-error {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 12px 0;
}

.edit-page-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.edit-page-modal-content {
    position: relative;
    z-index: 1;
    width: 95vw;
    height: 95vh;
    min-width: 400px;
    min-height: 300px;
    max-width: 95vw;
    max-height: 95vh;
    resize: both;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.edit-page-modal-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.edit-page-modal-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    flex: 1;
}

/* Autosave switch: compact toggle with tooltip (no visible label) */
.edit-page-autosave-switch {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.edit-page-autosave-switch input[type="checkbox"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.edit-page-autosave-track {
    display: inline-block;
    width: 36px;
    height: 20px;
    border-radius: 10px;
    background: var(--bg-secondary, #e2e8f0);
    border: 1px solid var(--border-color, #cbd5e1);
    position: relative;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.edit-page-autosave-track::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.edit-page-autosave-switch input:checked + .edit-page-autosave-track {
    background: var(--accent-color, #2563eb);
    border-color: var(--accent-color, #2563eb);
}

.edit-page-autosave-switch input:checked + .edit-page-autosave-track::after {
    transform: translateX(16px);
}

.edit-page-autosave-switch input:focus-visible + .edit-page-autosave-track {
    outline: 2px solid var(--accent-color, #2563eb);
    outline-offset: 2px;
}

.edit-page-modal-save,
.edit-page-modal-cancel {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.edit-page-modal-save {
    background: var(--accent-color, #2563eb);
    color: #fff;
    border-color: var(--accent-color, #2563eb);
}

.edit-page-modal-save:hover {
    filter: brightness(1.1);
}

.edit-page-modal-save:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: none;
}

.edit-page-modal-save:disabled:hover {
    filter: none;
}

.edit-page-modal-cancel {
    background: var(--bg-secondary);
    color: var(--text-color);
}

.edit-page-modal-cancel:hover {
    background: var(--hover-bg);
}

.edit-page-modal-body {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    padding: 0;
}

#editPageEditorContainer {
    width: 100%;
    height: 100%;
    min-height: 300px;
    flex: 1;
}

#editPageEditorContainer .toastui-editor-defaultUI {
    border: none;
}

/* Undo/Redo buttons (injected into Toast UI toolbar when API unavailable) */
#editPageEditorContainer .toastui-editor-undo,
#editPageEditorContainer .toastui-editor-redo {
    min-width: 32px;
    min-height: 32px;
    padding: 4px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background: transparent;
    color: inherit;
    font-size: 1.1rem;
}
#editPageEditorContainer .toastui-editor-undo:hover,
#editPageEditorContainer .toastui-editor-redo:hover {
    background: var(--hover-bg, rgba(0, 0, 0, 0.06));
}

#editPageEditorContainer .toastui-editor-md-container,
#editPageEditorContainer .toastui-editor-ww-container {
    background: var(--bg-color);
}

/* Dark theme: edit modal and Toast UI Editor */
[data-theme="dark"] .edit-page-modal-content {
    background: var(--bg-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .edit-page-modal-toolbar {
    background: var(--header-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .edit-page-modal-title {
    color: var(--text-color);
}

[data-theme="dark"] .edit-page-modal-cancel {
    background: var(--bg-secondary);
    color: var(--text-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .edit-page-modal-cancel:hover {
    background: var(--hover-bg);
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-defaultUI {
    background: var(--bg-color);
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-toolbar,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-defaultUI-toolbar {
    background: var(--header-bg) !important;
    border-bottom-color: var(--border-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-toolbar-icons {
    color: var(--text-color) !important;
    background-color: transparent !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-toolbar-icons:hover {
    background-color: var(--hover-bg) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-md-container,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-ww-container {
    background: var(--bg-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-md-editor,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-ww-editor {
    background: var(--bg-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-md-preview,
[data-theme="dark"] #editPageEditorContainer .ProseMirror {
    background: var(--bg-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-md-preview .toastui-editor-contents,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-ww-container .toastui-editor-contents {
    background: var(--bg-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-md-editor .toastui-editor-md-preview {
    background: var(--bg-secondary) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-md-container .toastui-editor-md-editor .ProseMirror,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-ww-container .ProseMirror {
    color: var(--text-color) !important;
    background: var(--bg-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-mode-switch {
    background: var(--header-bg) !important;
    border-top-color: var(--border-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-mode-switch button {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-mode-switch button.active {
    color: var(--text-color) !important;
    background: var(--hover-bg) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-main-container {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-toolbar-divider {
    background: var(--border-color) !important;
}

/* Dark theme: code and pre in editor/preview (fix light pink/grey code backgrounds) */
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents code,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents p code {
    background: var(--code-bg) !important;
    color: var(--text-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents pre {
    background: var(--code-bg) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents pre code {
    background: transparent !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents kbd {
    background: var(--code-bg) !important;
    color: var(--text-color) !important;
    border-color: var(--border-color) !important;
}

/* ProseMirror (editor) and any inline code/code block styling */
[data-theme="dark"] #editPageEditorContainer .ProseMirror code {
    background: var(--code-bg) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .ProseMirror pre {
    background: var(--code-bg) !important;
}

[data-theme="dark"] #editPageEditorContainer .ProseMirror pre code {
    background: transparent !important;
    color: var(--text-color) !important;
}

/* Prism/syntax highlight tokens in preview (force dark) */
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents [class*="token"] {
    background: transparent !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents pre[class*="language-"] {
    background: var(--code-bg) !important;
}

/* Legacy Toast UI class (tui-editor-contents) if present */
[data-theme="dark"] #editPageEditorContainer .tui-editor-contents code,
[data-theme="dark"] #editPageEditorContainer .tui-editor-contents pre {
    background: var(--code-bg) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .tui-editor-contents pre code {
    background: transparent !important;
}

/* Tables and misc in preview */
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents table,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents th,
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents td {
    border-color: var(--border-color) !important;
    background: var(--bg-secondary) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents th {
    background: var(--hover-bg) !important;
}

/* Any span/code with pink/grey from default theme (broad fallback) */
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents span[style*="background"],
[data-theme="dark"] #editPageEditorContainer .toastui-editor-contents code[style*="background"] {
    background: var(--code-bg) !important;
    color: var(--text-color) !important;
}

/* ---- Page notes (inline document commenting) ---- */
/* Palette: same colors for highlight and sidebar marker (index 0–7) */
:root {
    --pagenote-color-0: #d4a84b;
    --pagenote-color-1: #5b9bd5;
    --pagenote-color-2: #70ad47;
    --pagenote-color-3: #ed7d31;
    --pagenote-color-4: #a5a5a5;
    --pagenote-color-5: #ffc000;
    --pagenote-color-6: #4472c4;
    --pagenote-color-7: #c55a11;
}

[data-theme="dark"] {
    --pagenote-color-0: #c49a3d;
    --pagenote-color-1: #6ba3d9;
    --pagenote-color-2: #7eb855;
    --pagenote-color-3: #e88a45;
    --pagenote-color-4: #b0b0b0;
    --pagenote-color-5: #e6ac00;
    --pagenote-color-6: #5a82d4;
    --pagenote-color-7: #d66b2a;
}

/* In-page note highlights: only show color when Page notes sidebar is open (matches sidebar marker color) */
.pagenote-highlight {
    border-radius: 2px;
    cursor: pointer;
    border-bottom: 1px solid transparent;
}

body:not(.pagenotes-sidebar-open) .pagenote-highlight,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-0,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-1,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-2,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-3,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-4,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-5,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-6,
body:not(.pagenotes-sidebar-open) .pagenote-highlight-color-7 {
    background: transparent !important;
    border-bottom-color: transparent !important;
}

body.pagenotes-sidebar-open .pagenote-highlight-color-0 { background: rgba(212, 168, 75, 0.55); border-bottom-color: rgba(212, 168, 75, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-1 { background: rgba(91, 155, 213, 0.55); border-bottom-color: rgba(91, 155, 213, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-2 { background: rgba(112, 173, 71, 0.55); border-bottom-color: rgba(112, 173, 71, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-3 { background: rgba(237, 125, 49, 0.55); border-bottom-color: rgba(237, 125, 49, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-4 { background: rgba(165, 165, 165, 0.55); border-bottom-color: rgba(165, 165, 165, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-5 { background: rgba(255, 192, 0, 0.55); border-bottom-color: rgba(255, 192, 0, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-6 { background: rgba(68, 114, 196, 0.55); border-bottom-color: rgba(68, 114, 196, 0.6); }
body.pagenotes-sidebar-open .pagenote-highlight-color-7 { background: rgba(197, 90, 17, 0.55); border-bottom-color: rgba(197, 90, 17, 0.6); }

body.pagenotes-sidebar-open .pagenote-highlight:hover {
    filter: brightness(0.92);
}

.pagenote-add-bubble {
    position: fixed;
    z-index: 350;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease, visibility 0.15s ease;
}

.pagenote-add-bubble.visible {
    opacity: 1;
    visibility: visible;
}

.pagenote-add-bubble.hidden {
    display: none !important;
}

.pagenote-add-bubble-btn {
    padding: 8px 14px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.pagenote-add-bubble-btn:hover {
    background: var(--hover-bg);
}

/* Confirm modal (Yes/No, site-styled) */
.confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 550;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.confirm-overlay.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.confirm-overlay.hidden {
    display: none !important;
}

.confirm-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
}

.confirm-card {
    position: relative;
    z-index: 1;
    min-width: 320px;
    max-width: 420px;
    min-height: 120px;
    padding: 24px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.confirm-message {
    margin: 0 0 20px 0;
    font-size: 0.9375rem;
    color: var(--text-color);
    line-height: 1.45;
}

.confirm-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.confirm-btn {
    min-height: 40px;
    padding: 8px 18px;
    font-size: 0.875rem;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.confirm-btn-yes {
    background: var(--accent-color, #2563eb);
    color: #fff;
    border-color: var(--accent-color, #2563eb);
}

.confirm-btn-yes:hover {
    filter: brightness(1.1);
}

.confirm-btn-no {
    background: var(--bg-secondary);
    color: var(--text-color);
}

.confirm-btn-no:hover {
    background: var(--hover-bg);
}

.pagenote-popup {
    position: fixed;
    inset: 0;
    z-index: 400;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 80px 16px 16px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    pointer-events: none;
}

.pagenote-popup.visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.pagenote-popup.hidden {
    display: none !important;
}

.pagenote-popup-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
}

.pagenote-popup-card {
    position: relative;
    z-index: 1;
    width: min(380px, calc(100vw - 32px));
    max-width: 75vw;
    height: 90vh;
    max-height: 90vh;
    min-width: 520px;
    min-height: 600px;
    resize: both;
    overflow: auto;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.pagenote-popup-header {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.pagenote-popup-close {
    margin-left: auto;
}

.pagenote-popup-nav,
.pagenote-popup-delete,
.pagenote-popup-close {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagenote-popup-nav:hover,
.pagenote-popup-delete:hover,
.pagenote-popup-close:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.pagenote-popup-quoted {
    padding: 8px 10px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
/* Tablet: Note Editor wider and less tall (not almost full height) */
@media (min-width: 769px) and (max-width: 1024px) {
    .pagenote-popup-card {
        width: min(560px, 55vw);
        min-width: 420px;
        max-width: 55vw;
        height: 70vh;
        max-height: 70vh;
        min-height: 400px;
        resize: both;
    }
}

@media (max-width: 768px) {
    .pagenote-popup-card {
        min-width: 0;
        min-height: 0;
        width: calc(100vw - 24px);
        max-width: none;
        height: 85vh;
        max-height: 85vh;
        resize: none;
    }
    .pagenote-popup-quoted {
        white-space: normal;
        max-height: 4.5em;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
}

.pagenote-popup-thread {
    flex: 1;
    overflow-y: auto;
    padding: 12px 10px;
    min-height: 80px;
}

.pagenote-popup-reply {
    padding: 10px 10px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pagenote-popup-reply-content {
    min-height: 136px;
}

/* Ensure editor wrapper never collapses (fixes missing textbox when popup opens) */
.pagenote-popup-reply-content .pm-editor {
    min-height: 120px;
    overflow: auto;
}

.pagenote-popup-reply-content .comment-contenteditable,
.pagenote-popup-reply-content .ProseMirror {
    min-height: 120px;
    padding: 8px 10px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
}

.pagenote-popup-reply-submit {
    align-self: flex-end;
    padding: 6px 14px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--accent-color, #2563eb);
    color: #fff;
    cursor: pointer;
}

.pagenote-popup-reply-submit:hover {
    filter: brightness(1.1);
}

.pagenote-thread-item {
    font-size: 0.875rem;
}

.pagenote-thread-item-root {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0 10px 12px;
    border-bottom: 1px solid var(--border-color);
    border-radius: 6px;
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.pagenote-thread-item-root:last-child {
    border-bottom: none;
}

.pagenote-thread-item-root.pagenote-thread-item-reply-target {
    background: var(--pagenote-reply-target-bg, rgba(91, 155, 213, 0.12));
    box-shadow: inset 0 0 0 2px var(--pagenote-reply-target-border, rgba(91, 155, 213, 0.4));
}

.pagenote-thread-reply {
    margin-top: 4px;
    padding-left: 16px;
    border-left: 3px solid var(--border-color);
    margin-left: 14px;
    border-radius: 6px;
    transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.pagenote-thread-reply-level-0 { border-left-color: var(--pagenote-color-0); }
.pagenote-thread-reply-level-1 { border-left-color: var(--pagenote-color-1); }
.pagenote-thread-reply-level-2 { border-left-color: var(--pagenote-color-2); }
.pagenote-thread-reply-level-3 { border-left-color: var(--pagenote-color-3); }
.pagenote-thread-reply-level-4 { border-left-color: var(--pagenote-color-4); }
.pagenote-thread-reply-level-5 { border-left-color: var(--pagenote-color-5); }
.pagenote-thread-reply-level-6 { border-left-color: var(--pagenote-color-6); }
.pagenote-thread-reply-level-7 { border-left-color: var(--pagenote-color-7); }

.pagenote-thread-reply.pagenote-thread-item-reply-target {
    background: var(--pagenote-reply-target-bg, rgba(91, 155, 213, 0.12));
    box-shadow: inset 0 0 0 2px var(--pagenote-reply-target-border, rgba(91, 155, 213, 0.25));
}

.pagenote-thread-reply-inner {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0 8px 10px;
}

.pagenote-thread-in-reply-to {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
    padding-left: 10px;
}

.pagenote-thread-avatar {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: var(--comment-avatar-bg, #5b9bd5);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
}

.pagenote-thread-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 999px;
    object-fit: cover;
}

.pagenote-thread-body {
    flex: 1;
    min-width: 0;
    overflow-wrap: break-word;
    word-break: break-word;
}

.pagenote-thread-head {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 0;
    line-height: 1.3;
}

.pagenote-thread-author {
    font-weight: 600;
    color: var(--text-color);
}

.pagenote-thread-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.pagenote-thread-reply-btn {
    margin-left: 8px;
    padding: 2px 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

.pagenote-thread-reply-btn:hover {
    color: var(--text-color);
    background: var(--hover-bg);
    border-color: var(--text-secondary);
}

.pagenote-reply-to-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.pagenote-reply-to-hint.hidden {
    display: none;
}

.pagenote-thread-content {
    margin-top: 2px;
    margin-left: 0;
    padding-top: 0;
    padding-left: 0;
    color: var(--text-color);
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.4;
}

/* First note in thread: a bit more space between name line and content so it doesn’t feel cramped */
.pagenote-thread-item-root .pagenote-thread-content {
    margin-top: 8px;
}

.pagenote-thread-content > *:first-child {
    margin-top: 0;
    margin-bottom: 0.25em;
}

.pagenote-thread-content > *:last-child {
    margin-bottom: 0;
}

.pagenote-thread-content p,
.pagenote-thread-content div {
    margin-left: 0;
    padding-left: 0;
    margin-top: 0;
}

.pagenote-thread-content p:first-child,
.pagenote-thread-content div:first-child {
    margin-top: 0;
}

.pagenotes-sidebar {
    width: 0;
    min-width: 0;
    overflow: hidden;
    border-left: none;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    transition: width 0.2s ease, min-width 0.2s ease;
}

.pagenotes-sidebar.visible {
    width: 320px;
    min-width: 320px;
    border-left: 1px solid var(--border-color);
}

.pagenotes-sidebar-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.pagenotes-sidebar-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    flex: 1;
}

.pagenotes-sidebar-pin,
.pagenotes-sidebar-close {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
}

.pagenotes-sidebar-pin:hover,
.pagenotes-sidebar-close:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.pagenotes-sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.pagenotes-sidebar-item {
    padding: 10px 0 10px 10px;
    border-bottom: 1px solid var(--border-color);
    border-left: 3px solid transparent;
    margin-left: 0;
    cursor: pointer;
    font-size: 0.875rem;
    min-width: 0;
}

.pagenotes-sidebar-item-color-0 { border-left-color: var(--pagenote-color-0); }
.pagenotes-sidebar-item-color-1 { border-left-color: var(--pagenote-color-1); }
.pagenotes-sidebar-item-color-2 { border-left-color: var(--pagenote-color-2); }
.pagenotes-sidebar-item-color-3 { border-left-color: var(--pagenote-color-3); }
.pagenotes-sidebar-item-color-4 { border-left-color: var(--pagenote-color-4); }
.pagenotes-sidebar-item-color-5 { border-left-color: var(--pagenote-color-5); }
.pagenotes-sidebar-item-color-6 { border-left-color: var(--pagenote-color-6); }
.pagenotes-sidebar-item-color-7 { border-left-color: var(--pagenote-color-7); }

.pagenotes-sidebar-item:hover {
    background: var(--hover-bg);
}

.pagenotes-sidebar-item-quoted {
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 4px;
}

.pagenotes-sidebar-item-preview {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .pagenote-popup {
        padding: 60px 12px 12px;
    }
    .pagenote-popup-card {
        width: min(380px, calc(100vw - 24px));
        min-width: 0;
        max-width: calc(100vw - 24px);
        max-height: 75vh;
        resize: none;
        padding: 0;
    }
    .pagenote-popup-header {
        padding: 6px 8px;
    }
    .pagenote-popup-quoted {
        padding: 6px 8px;
    }
    .pagenote-popup-thread {
        padding: 10px 8px;
    }
    .pagenote-popup-reply {
        padding: 8px;
    }

    .pagenotes-sidebar.visible {
        position: fixed;
        top: var(--header-height);
        right: 0;
        bottom: 0;
        z-index: 100;
        width: min(320px, calc(100vw - 24px));
        min-width: min(320px, calc(100vw - 24px));
        box-shadow: -4px 0 16px rgba(0, 0, 0, 0.15);
    }
}
@media (max-width: 400px) {
    .pagenotes-sidebar.visible {
        width: min(280px, calc(100vw - 16px));
        min-width: min(280px, calc(100vw - 16px));
    }
    body.pagenotes-sidebar-open .toc-floating {
        right: calc(min(280px, calc(100vw - 16px)) + 12px);
    }
    body.pagenotes-sidebar-open .to-top-btn {
        right: calc(min(280px, calc(100vw - 16px)) + 12px);
    }
    .pagenotes-sidebar-body {
        padding: 8px;
    }
    .pagenotes-sidebar-item {
        padding: 8px 0 8px 8px;
    }
    .pagenotes-sidebar-header {
        padding: 10px 10px;
    }
}