:root {
    --primary: #60a5fa;
    --primary-hover: #93bbfd;
    --primary-dim: rgba(96, 165, 250, 0.12);
    --text: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border: #3f3f46;
    --border-light: #27272a;
    --bg: #09090b;
    --bg-secondary: #18181b;
    --bg-code: #1c1c20;
    --bg-header: rgba(9, 9, 11, 0.85);
    --header-h: 52px;
    --sidebar-w: 240px;
    --content-max-w: 760px;
    --radius: 10px;
    --radius-sm: 6px;
    --red: #f87171;
    --yellow: #fbbf24;
    --green: #34d399;
}

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

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
        Helvetica, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.docs-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: var(--bg-header);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    z-index: 100;
}

.docs-header .logo {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text);
    text-decoration: none;
    margin-right: 2rem;
    letter-spacing: -0.02em;
}

.docs-header .logo span {
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 0.35rem;
    font-size: 0.8rem;
}

.docs-header nav {
    display: flex;
    gap: 1.25rem;
}

.docs-header nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 400;
    padding: 0.25rem 0;
    transition: color 0.15s;
}

.docs-header nav a:hover {
    color: var(--text);
}

.header-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-right a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.15s;
}

.header-right a:hover {
    color: var(--text);
}

/* Layout */
.docs-container {
    display: flex;
    padding-top: var(--header-h);
    min-height: 100vh;
}

/* Sidebar */
.docs-sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: var(--sidebar-w);
    height: calc(100vh - var(--header-h));
    background: var(--bg);
    border-right: 1px solid var(--border-light);
    padding: 1.25rem 0.75rem;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.docs-sidebar::-webkit-scrollbar {
    width: 4px;
}

.docs-sidebar::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.sidebar-logo {
    display: block;
    text-align: center;
    padding: 0.5rem 0.75rem 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
    text-decoration: none;
}

.sidebar-logo:hover {
    text-decoration: none;
}

.sidebar-logo img {
    width: 100px;
    height: auto;
}

.sidebar-section {
    margin-bottom: 1.5rem;
}

.sidebar-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    letter-spacing: 0.04em;
    padding-left: 0.75rem;
}

.sidebar-links {
    list-style: none;
}

.sidebar-links li {
    margin-bottom: 1px;
}

.sidebar-links a {
    display: block;
    padding: 0.3rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: all 0.15s;
    line-height: 1.4;
}

.sidebar-links a:hover {
    background: var(--bg-secondary);
    color: var(--text);
}

.sidebar-links a.active {
    background: var(--primary);
    color: #09090b;
    font-weight: 500;
}

/* Main content */
.docs-main {
    flex: 1;
    margin-left: var(--sidebar-w);
    margin-right: 200px;
    padding: 2.5rem 3rem;
    max-width: calc(var(--content-max-w) + var(--sidebar-w) + 6rem);
}

.docs-main h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.025em;
    line-height: 1.2;
    color: var(--text);
}

.docs-main h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 2.5rem 0 0.75rem 0;
    letter-spacing: -0.015em;
    color: var(--text);
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-light);
}

.docs-main h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 2rem 0 0.5rem 0;
    color: var(--text);
}

.docs-main h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 1.5rem 0 0.5rem 0;
    color: var(--text);
}

.docs-main p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.docs-main ul,
.docs-main ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.docs-main li {
    margin-bottom: 0.35rem;
    line-height: 1.6;
}

/* Links */
a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Code */
code {
    background: var(--bg-code);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85em;
    font-family:
        "SF Mono", SFMono-Regular, ui-monospace, Menlo, Consolas, monospace;
    color: var(--primary);
    border: 1px solid var(--border-light);
}

pre {
    background: #0d1117;
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    overflow-x: auto;
    border: 1px solid var(--border-light);
    margin: 1rem 0 1.5rem 0;
    line-height: 1.5;
}

pre code {
    background: none;
    padding: 0;
    font-size: 0.82rem;
    color: var(--text);
    border: none;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 1.5rem 0;
    font-size: 0.9rem;
}

th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 2px solid var(--border);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
}

td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: top;
}

/* Blockquote */
blockquote {
    border-left: 3px solid var(--primary);
    padding: 0.5rem 1rem;
    margin: 1rem 0;
    background: var(--bg-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-secondary);
}

blockquote p {
    margin-bottom: 0;
}

/* Info boxes */
.info-box {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin: 1rem 0;
    border-left: 3px solid;
    font-size: 0.9rem;
}

.info-box.note {
    background: rgba(96, 165, 250, 0.08);
    border-color: var(--primary);
    color: var(--text-secondary);
}

.info-box.warning {
    background: rgba(251, 191, 36, 0.08);
    border-color: var(--yellow);
    color: var(--text-secondary);
}

.info-box.tip {
    background: rgba(52, 211, 153, 0.08);
    border-color: var(--green);
    color: var(--text-secondary);
}

/* Alert shortcode */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin: 1rem 0;
    border-left: 3px solid var(--primary);
    background: rgba(96, 165, 250, 0.08);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    border-left: 3px solid var(--primary);
}

/* Section list */
ul.section-list {
    list-style: none;
    padding: 0;
}

ul.section-list li {
    margin-bottom: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    transition: border-color 0.15s;
}

ul.section-list li:hover {
    border-color: var(--border);
}

ul.section-list li a {
    font-weight: 500;
    color: var(--primary);
}

/* Navigation pagination */
nav.pagination {
    margin: 1.5rem 0;
}

nav.pagination .pagination-list {
    list-style: none;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

nav.pagination a {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    text-decoration: none;
}

nav.pagination a:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.pagination-current span {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--primary);
    background: var(--primary-dim);
    color: var(--primary);
}

.pagination-disabled span {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    opacity: 0.5;
}

/* Footer */
.docs-footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
    padding-bottom: 2rem;
}

.docs-footer p {
    margin-bottom: 0.75rem;
}

.docs-footer .hahwul-img {
    height: 24px;
    width: auto;
    opacity: 0.4;
    transition: opacity 0.2s;
}

.docs-footer .hahwul-img:hover {
    opacity: 0.7;
}

/* Search trigger button */
.search-trigger {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}

.search-trigger:hover {
    border-color: var(--text-muted);
    color: var(--text);
}

.search-trigger kbd {
    font-size: 0.65rem;
    padding: 0.1rem 0.35rem;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg);
    color: var(--text-muted);
    font-family: inherit;
    line-height: 1.4;
}

/* Search overlay */
.search-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200;
    justify-content: center;
    padding-top: 12vh;
}

.search-overlay.active {
    display: flex;
}

.search-modal {
    width: 560px;
    max-width: 90vw;
    max-height: 70vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 16px 70px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    align-self: flex-start;
}

.search-input-wrap {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

.search-input-wrap svg {
    flex-shrink: 0;
    color: var(--text-muted);
}

.search-input-wrap input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text);
    background: transparent;
}

.search-input-wrap input::placeholder {
    color: var(--text-muted);
}

.search-input-wrap kbd {
    font-size: 0.65rem;
    padding: 0.15rem 0.4rem;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg);
    color: var(--text-muted);
    font-family: inherit;
    cursor: pointer;
    line-height: 1.4;
}

.search-results {
    overflow-y: auto;
    padding: 0.5rem;
}

.search-result-item {
    display: block;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text);
    cursor: pointer;
    transition: background 0.1s;
}

.search-result-item:hover,
.search-result-item.active {
    background: var(--bg);
    text-decoration: none;
}

.search-result-item .search-result-title {
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.15rem;
}

.search-result-item .search-result-snippet {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-result-item .search-result-snippet mark {
    background: var(--primary-dim);
    color: var(--primary);
    border-radius: 2px;
    padding: 0 1px;
}

.search-no-results {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.search-hint {
    padding: 0.5rem 0.75rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: 0.7rem;
}

.search-hint kbd {
    font-size: 0.65rem;
    padding: 0 0.3rem;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--bg);
    font-family: inherit;
    line-height: 1.4;
}

/* Hero section for home */
.hero-section {
    text-align: center;
    padding: 3rem 0 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-light);
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
    border-bottom: none;
}

.hero-section .tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.hero-section .hero-badges {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-section .badge {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
}

.hero-section .badge-rust {
    color: var(--yellow);
    border-color: rgba(251, 191, 36, 0.2);
}

/* Table of Contents */
.docs-toc {
    position: fixed;
    top: var(--header-h);
    right: 0;
    width: 200px;
    height: calc(100vh - var(--header-h));
    padding: 1.5rem 1rem 1.5rem 0;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.docs-toc::-webkit-scrollbar {
    width: 3px;
}

.docs-toc::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.toc-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
    padding-left: 0.75rem;
}

.docs-toc nav a {
    display: block;
    padding: 0.2rem 0.75rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-decoration: none;
    line-height: 1.4;
    border-left: 2px solid transparent;
    transition: all 0.15s;
}

.docs-toc nav a:hover {
    color: var(--text-secondary);
}

.docs-toc nav a.active {
    color: var(--primary);
    border-left-color: var(--primary);
}

.docs-toc nav a.toc-h3 {
    padding-left: 1.5rem;
    font-size: 0.75rem;
}

.docs-toc:empty,
.docs-toc.hidden {
    display: none;
}

/* Responsive */
@media (max-width: 1100px) {
    .docs-toc {
        display: none;
    }
    .docs-main {
        margin-right: 0;
    }
}

@media (max-width: 768px) {
    .docs-sidebar {
        display: none;
    }
    .docs-main {
        margin-left: 0;
        padding: 1.5rem 1rem;
    }
    .hero-section h1 {
        font-size: 1.8rem;
    }
}