:root {
    --bg-primary: #030308;
    --bg-secondary: #18181b;
    --bg-elevated: #18181b;
    --bg-hover: #222222;
    --border: #2a2a2a;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent: #ee3bff
    --accent-hover: #818cf8;
    --info-bg: #1e293b6b;
    --info-border: #334155;
    --info-text: #93c5fd;
    --success-bg: #14532d6b;
    --success-border: #166534;
    --success-text: #86efac;
    --warning-bg: #451a036b;
    --warning-border: #92400e;
    --warning-text: #fcd34d;
    --danger-bg: #450a0a6b;
    --danger-border: #991b1b;
    --danger-text: #fca5a5;
    --sidebar-width: 280px;
    --content-max: 860px;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    color: var(--accent-hover);
}

/* Layout */
.wiki-app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow: hidden;
}

.sidebar-header {
    padding: 20px 16px 12px;
    border-bottom: 1px solid var(--border);
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.site-brand:hover {
    color: var(--text-primary);
}

.site-icon {
    font-size: 1.4rem;
}

.sidebar-search {
    padding: 12px 16px;
    position: relative;
}

.sidebar-search input {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    outline: none;
    transition: border-color 0.15s;
}

.sidebar-search input:focus {
    border-color: var(--accent);
}

.search-results {
    position: absolute;
    top: calc(100% - 4px);
    left: 16px;
    right: 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    max-height: 240px;
    overflow-y: auto;
    z-index: 200;
}

.search-results a {
    display: block;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border);
}

.search-results a:last-child {
    border-bottom: none;
}

.search-results a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.nav-section {
    margin-bottom: 4px;
}

.nav-section-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    text-align: left;
}

.nav-section-toggle:hover {
    color: var(--text-secondary);
}

.nav-section-icon {
    font-size: 0.85rem;
}

.nav-section-title {
    flex: 1;
}

.chevron {
    transition: transform 0.2s;
    opacity: 0.5;
}

.nav-section-toggle[aria-expanded="false"] .chevron {
    transform: rotate(-90deg);
}

.nav-pages {
    list-style: none;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.nav-pages.collapsed {
    max-height: 0 !important;
}

.nav-pages li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px 7px 28px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-left: 2px solid transparent;
    transition: all 0.15s;
}

.nav-pages li a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-pages li a.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-left-color: var(--accent);
    font-weight: 500;
}

.page-icon {
    font-size: 0.9rem;
    flex-shrink: 0;
}

.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 32px 48px 24px;
    max-width: calc(var(--content-max) + 96px);
    margin: 0 auto;
    gap: 16px;
}

.page-meta {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    flex: 1;
}

.page-icon-lg {
    font-size: 2.5rem;
    line-height: 1;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.page-icon-lg .wiki-icon-img,
.nav-section-icon .wiki-icon-img,
.page-icon .wiki-icon-img {
    width: 1.1em;
    height: 1.1em;
    object-fit: contain;
}

.page-icon-lg .wiki-icon-img {
    width: 2.5rem;
    height: 2.5rem;
}

.wiki-icon-emoji {
    line-height: 1;
}

.wiki-icon-svg,
.wiki-icon-svg svg {
    width: 1.1em;
    height: 1.1em;
    display: block;
}

.page-icon-lg .wiki-icon-svg,
.page-icon-lg .wiki-icon-svg svg {
    width: 2.5rem;
    height: 2.5rem;
}

.nav-section-icon,
.page-icon,
.site-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 4px;
}

.page-desc {
    color: var(--text-secondary);
    font-size: 1rem;
}

.page-body {
    max-width: var(--content-max);
    margin: 0 auto;
    padding: 0 48px 64px;
}

/* Blocks */
.block-heading {
    font-weight: 700;
    margin: 1.5em 0 0.5em;
    line-height: 1.3;
}

.block-heading.level-1 { font-size: 1.75rem; margin-top: 0; }
.block-heading.level-2 { font-size: 1.4rem; }
.block-heading.level-3 { font-size: 1.15rem; }

.block-paragraph {
    color: var(--text-secondary);
    margin: 0.75em 0;
    font-size: 1rem;
}

.block-markup {
    margin: 1em 0;
}

.block-markup > *:first-child {
    margin-top: 0;
}

.block-markup > *:last-child {
    margin-bottom: 0;
}

.block-paragraph code,
.block-markup code,
.callout-body code {
    font-family: var(--font-mono, ui-monospace, monospace);
    font-size: 0.875em;
    background: var(--bg-secondary);
    padding: 0.1em 0.35em;
    border-radius: 4px;
}

.block-paragraph a,
.block-markup a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.block-paragraph mark,
.block-markup mark {
    background: rgba(255, 214, 0, 0.35);
    padding: 0 0.15em;
    border-radius: 2px;
}

.block-callout {
    display: flex;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid;
    margin: 1em 0;
}

.block-callout.info {
    background: var(--info-bg);
    border-color: var(--info-border);
    color: var(--info-text);
}

.block-callout.success {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.block-callout.warning {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}

.block-callout.danger {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--danger-text);
}

.callout-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.callout-body strong {
    display: block;
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.callout-body p {
    font-size: 0.875rem;
    opacity: 0.9;
    margin: 0;
}

.block-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2em 0;
}

.block-card-grid {
    display: grid;
    gap: 16px;
    margin: 1.5em 0;
}

.block-card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.block-card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.block-card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.wiki-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color 0.15s, transform 0.15s;
}

.wiki-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.wiki-card-icon {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.wiki-card-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.wiki-card-text {
    font-size: 0.825rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.block-code {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin: 1em 0;
    overflow-x: auto;
}

.block-code pre {
    margin: 0;
    font-family: "JetBrains Mono", "Fira Code", monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-primary);
}

.block-code .code-lang {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}


.block-image {
    margin: 1.5em 0;
}

.block-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: inline-block;
}

.block-image.align-left {
    text-align: left;
}

.block-image.align-center {
    text-align: center;
}

.block-image.align-right {
    text-align: right;
}

.block-image.align-full img {
    width: 100%;
}

.block-image.width-50 img { width: 50%; }
.block-image.width-75 img { width: 75%; }
.block-image.width-100 img { width: 100%; }

.block-video.align-left .video-embed { margin-right: auto; }
.block-video.align-center .video-embed { margin-left: auto; margin-right: auto; }
.block-video.align-right .video-embed { margin-left: auto; }
.block-video.align-full .video-embed { width: 100%; }

.block-video.align-left,
.block-video.align-center,
.block-video.align-right,
.block-video.align-full {
    display: flex;
    flex-direction: column;
}

.block-video.align-left { align-items: flex-start; }
.block-video.align-center { align-items: center; }
.block-video.align-right { align-items: flex-end; }
.block-video.align-full { align-items: stretch; }

.block-image figcaption {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.825rem;
    margin-top: 8px;
}

.block-list {
    margin: 0.75em 0;
    padding-left: 1.5em;
    color: var(--text-secondary);
}

.block-list li {
    margin: 0.35em 0;
}

.block-quote {
    margin: 1em 0;
    padding: 16px 20px;
    border-left: 4px solid var(--accent);
    background: var(--bg-elevated);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text-secondary);
}

.block-quote footer {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.block-button-wrap {
    margin: 1em 0;
}

.block-button-wrap.full,
.block-button-wrap.align-center {
    text-align: center;
}

.block-button-wrap.align-right {
    text-align: right;
}

.block-button-wrap.full .block-button.full {
    display: flex;
    width: 100%;
    justify-content: center;
    text-align: center;
}

.block-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.15s;
    border: 1px solid transparent;
}

.block-button.size-sm { padding: 6px 14px; font-size: 0.8rem; }
.block-button.size-lg { padding: 14px 28px; font-size: 1rem; }

.block-button .btn-icon {
    font-size: 1.1em;
    line-height: 1;
}

.block-button.primary {
    background: var(--accent);
    color: #fff;
}

.block-button.primary:hover {
    background: var(--accent-hover);
    color: #fff;
}

.block-button.secondary {
    background: var(--bg-elevated);
    border-color: var(--border);
    color: var(--text-primary);
}

.block-button.accent {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    color: #fff;
}

.block-button.danger {
    background: #ef4444;
    color: #fff;
}

.block-button.danger:hover {
    background: #dc2626;
    color: #fff;
}

.block-button.ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text-primary);
}

.block-button.ghost:hover {
    background: var(--bg-hover);
}

.block-hero {
    margin: 1.5em 0;
    padding: 48px 32px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.block-hero.variant-gradient {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(99, 102, 241, 0.15) 50%, var(--bg-elevated) 100%);
    border-color: rgba(99, 102, 241, 0.3);
}

.block-hero.variant-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.75));
    z-index: 0;
}

.block-hero .hero-content {
    position: relative;
    z-index: 1;
    max-width: 640px;
}

.block-hero .hero-badge {
    margin-bottom: 12px;
}

.block-hero .hero-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 12px;
    color: var(--text-primary);
}

.block-hero .hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin: 0 0 24px;
    line-height: 1.6;
}

.block-accordion {
    margin: 1.5em 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.accordion-item {
    border-bottom: 1px solid var(--border);
}

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

.accordion-item summary {
    padding: 14px 16px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-secondary);
    transition: background 0.15s;
}

.accordion-item summary::-webkit-details-marker {
    display: none;
}

.accordion-item summary::after {
    content: '▸';
    color: var(--text-muted);
    transition: transform 0.15s;
}

.accordion-item[open] summary::after {
    transform: rotate(90deg);
}

.accordion-item summary:hover {
    background: var(--bg-hover);
}

.accordion-body {
    padding: 14px 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9rem;
}

.wiki-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.wiki-badge.info { background: var(--info-bg); color: var(--info-text); border: 1px solid var(--info-border); }
.wiki-badge.success { background: var(--success-bg); color: var(--success-text); border: 1px solid var(--success-border); }
.wiki-badge.warning { background: var(--warning-bg); color: var(--warning-text); border: 1px solid var(--warning-border); }
.wiki-badge.danger { background: var(--danger-bg); color: var(--danger-text); border: 1px solid var(--danger-border); }
.wiki-badge.neutral { background: var(--bg-secondary); color: var(--text-secondary); border: 1px solid var(--border); }

.wiki-spoiler {
    margin: 0.75em 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.wiki-spoiler summary {
    padding: 10px 14px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
    background: var(--bg-secondary);
}

.wiki-spoiler .spoiler-body {
    padding: 12px 14px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.wiki-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 1em 0;
}

.wiki-col {
    min-width: 0;
}

.wiki-center {
    text-align: center;
    margin: 0.75em 0;
}

.block-lead {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0.75em 0;
    font-weight: 500;
}

.block-paragraph kbd,
.block-markup kbd {
    font-family: var(--font-mono, ui-monospace, monospace);
    font-size: 0.8em;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    box-shadow: 0 1px 0 var(--border);
}

.block-tabs {
    margin: 1.5em 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.tab-header {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
}

.tab-btn {
    padding: 10px 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.875rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent);
}

.tab-panels {
    padding: 16px;
}

.tab-panel {
    display: none;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.block-table-wrap {
    margin: 1em 0;
    overflow-x: auto;
}

.block-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.block-table th,
.block-table td {
    padding: 10px 14px;
    border: 1px solid var(--border);
    text-align: left;
}

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

.block-table tr:nth-child(even) td {
    background: var(--bg-elevated);
}

.block-spacer.size-sm { height: 16px; }
.block-spacer.size-md { height: 32px; }
.block-spacer.size-lg { height: 64px; }

.block-video {
    margin: 1em 0;
}

.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--bg-secondary);
}

.video-embed iframe,
.video-embed video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.block-video figcaption {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.825rem;
    margin-top: 8px;
}

.wiki-card-link .wiki-card-anchor {
    display: block;
    color: inherit;
    text-decoration: none;
}

.search-empty {
    padding: 8px 12px;
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.block-heading.level-4 { font-size: 1rem; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 4px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 99;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.open {
        display: block;
    }

    .content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    .content-header {
        padding: 20px 20px 16px;
        flex-wrap: wrap;
    }

    .page-body {
        padding: 0 20px 48px;
    }

    .block-card-grid.cols-3,
    .block-card-grid.cols-4 {
        grid-template-columns: 1fr;
    }

    .block-card-grid.cols-2 {
        grid-template-columns: 1fr;
    }
}