:root {
    --bg-deep: #0a0b14;
    --bg-card: #1a1f35;
    --bg-code: #0e1222;
    --text-primary: #e8eaf0;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --aurora-green: #22c55e;
    --aurora-teal: #06b6d4;
    --aurora-purple: #8b5cf6;
    --border-subtle: rgba(255,255,255,0.06);
    --border-stronger: rgba(255,255,255,0.10);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
}
code, pre { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.doc-nav {
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.15s;
}
.back-link:hover { color: var(--aurora-teal); }
.doc-home {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
}
.doc-home:hover { color: var(--aurora-teal); }
.container {
    max-width: 820px;
    margin: 0 auto;
    padding: 48px 32px 96px;
}
.breadcrumb {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.breadcrumb a:hover { color: var(--aurora-teal); }
.page-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}
.page-sub {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    margin-bottom: 40px;
}
.section-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-top: 56px;
    margin-bottom: 16px;
}
.doc-body h1, .doc-body h2, .doc-body h3, .doc-body h4 {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.01em;
}
.doc-body h1 { font-size: 1.875rem; margin: 48px 0 14px; }
.doc-body h2 { font-size: 1.375rem; margin: 40px 0 12px; }
.doc-body h3 { font-size: 1.125rem; margin: 32px 0 10px; }
.doc-body h4 { font-size: 1rem; margin: 24px 0 8px; }
.doc-body p, .doc-body li {
    color: var(--text-secondary);
    margin-bottom: 12px;
}
.doc-body ul, .doc-body ol { padding-left: 24px; margin: 12px 0 20px; }
.doc-body li { margin-bottom: 6px; }
.doc-body a { color: var(--aurora-teal); text-decoration: none; }
.doc-body a:hover { text-decoration: underline; }
.doc-body strong { color: var(--text-primary); font-weight: 600; }
.doc-body em { font-style: italic; color: var(--text-primary); }
.doc-body code {
    background: var(--bg-code);
    color: #c5d4f0;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.875em;
    border: 1px solid var(--border-subtle);
}
.doc-body pre {
    background: var(--bg-code);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    margin: 18px 0 24px;
    font-size: 0.875rem;
    line-height: 1.55;
}
.doc-body pre code {
    background: none;
    border: none;
    padding: 0;
    color: #d3dbea;
    font-size: 0.875rem;
}
.doc-body blockquote {
    border-left: 3px solid var(--aurora-teal);
    padding: 4px 0 4px 20px;
    color: var(--text-secondary);
    font-style: italic;
    margin: 18px 0;
}
.doc-body hr {
    border: none;
    border-top: 1px solid var(--border-subtle);
    margin: 40px 0;
}
.doc-body table, main > table {
    width: 100%;
    border-collapse: collapse;
    margin: 18px 0 28px;
    font-size: 0.9375rem;
}
.doc-body th, .doc-body td, main > table th, main > table td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-subtle);
}
.doc-body th, main > table th {
    color: var(--text-primary);
    font-weight: 600;
    background: rgba(255,255,255,0.02);
}
.doc-body td, main > table td {
    color: var(--text-secondary);
}
.doc-body td code, main > table td code { font-size: 0.8125em; }
.doc-hr {
    border: none;
    border-top: 1px solid var(--border-subtle);
    margin: 56px 0 24px;
}
.doc-footnote {
    color: var(--text-muted);
    font-size: 0.875rem;
}
.doc-footnote a { color: var(--aurora-teal); text-decoration: none; }
.doc-footnote a:hover { text-decoration: underline; }

/* Docs index grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 8px;
}
.card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 20px 22px;
    text-decoration: none;
    transition: border-color 0.15s, transform 0.15s;
}
.card:hover {
    border-color: var(--aurora-teal);
    transform: translateY(-1px);
}
.card h3 {
    color: var(--text-primary);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.card p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

/* Steps list (index) */
.steps {
    counter-reset: step;
    list-style: none;
    padding-left: 0;
    margin: 12px 0 28px;
}
.steps li {
    counter-increment: step;
    position: relative;
    padding-left: 38px;
    margin-bottom: 14px;
    color: var(--text-secondary);
}
.steps li::before {
    content: counter(step);
    position: absolute;
    left: 0; top: 0;
    width: 26px; height: 26px;
    line-height: 26px;
    text-align: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-stronger);
    color: var(--aurora-teal);
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
}
.steps a, main > p a { color: var(--aurora-teal); text-decoration: none; }
.steps a:hover, main > p a:hover { text-decoration: underline; }
main > p code, main > ol code, main > ul code {
    background: var(--bg-code);
    color: #c5d4f0;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.875em;
    border: 1px solid var(--border-subtle);
    font-family: 'JetBrains Mono', monospace;
}

@media (max-width: 640px) {
    .container { padding: 32px 20px 72px; }
    .page-title { font-size: 1.75rem; }
    .doc-body h1 { font-size: 1.5rem; }
    .doc-body h2 { font-size: 1.25rem; }
    .card-grid { grid-template-columns: 1fr; }
}