:root {
    --bg: #f5f0e5;
    --bg-elevated: rgba(255, 251, 242, 0.82);
    --bg-strong: #fffaf0;
    --ink: #1e1a15;
    --muted: #655b4d;
    --line: rgba(45, 38, 29, 0.12);
    --accent: #0f6a56;
    --accent-soft: rgba(15, 106, 86, 0.12);
    --warning: #8e4b10;
    --warning-soft: rgba(142, 75, 16, 0.12);
    --code-bg: #1c1c1a;
    --code-ink: #f9f5ea;
    --shadow: 0 24px 60px rgba(31, 24, 18, 0.08);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
    --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
    --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(15, 106, 86, 0.12), transparent 30%),
        radial-gradient(circle at bottom right, rgba(142, 75, 16, 0.12), transparent 35%),
        linear-gradient(180deg, #f7f3ea 0%, var(--bg) 100%);
    font-family: var(--sans);
    line-height: 1.65;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(53, 44, 35, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(53, 44, 35, 0.03) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 85%);
}

.site-shell {
    position: relative;
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 32px;
    max-width: 1440px;
    margin: 0 auto;
    padding: 32px 28px 56px;
}

.sidebar {
    position: sticky;
    top: 24px;
    align-self: start;
    padding: 28px 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--bg-elevated);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.brand h1,
.hero h1,
.content h2 {
    font-family: var(--serif);
    letter-spacing: -0.02em;
}

.brand h1 {
    margin: 0;
    font-size: 2.25rem;
    line-height: 0.95;
}

.brand-subtitle {
    margin: 8px 0 0;
    color: var(--muted);
}

.search-label {
    display: block;
    margin: 28px 0 10px;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 600;
}

.nav-filter {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(30, 26, 21, 0.14);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.8);
    color: var(--ink);
    font: inherit;
}

.nav-filter:focus {
    outline: 2px solid rgba(15, 106, 86, 0.2);
    outline-offset: 2px;
    border-color: rgba(15, 106, 86, 0.4);
}

.doc-nav {
    display: grid;
    gap: 6px;
    margin-top: 18px;
}

.doc-nav a {
    display: block;
    padding: 9px 12px;
    border-radius: 999px;
    color: var(--muted);
    text-decoration: none;
    transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.doc-nav a:hover,
.doc-nav a.active {
    color: var(--ink);
    background: var(--accent-soft);
    transform: translateX(3px);
}

.doc-nav a.is-hidden {
    display: none;
}

.sidebar-note {
    margin-top: 26px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.94rem;
}

.sidebar-note p {
    margin: 6px 0;
}

.content {
    min-width: 0;
}

.hero,
.content section {
    margin-bottom: 24px;
    padding: 30px 34px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--bg-elevated);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}

.badge {
    display: inline-block;
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 16px 0 10px;
    font-size: clamp(2.5rem, 5vw, 4.2rem);
    line-height: 0.95;
}

.lead {
    max-width: 48rem;
    margin: 0;
    color: var(--muted);
    font-size: 1.1rem;
}

.callout-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.callout {
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.62);
    border: 1px solid rgba(31, 24, 18, 0.08);
}

.callout.warning {
    background: var(--warning-soft);
    border-color: rgba(142, 75, 16, 0.22);
}

.callout h2 {
    margin: 0 0 8px;
    font-size: 1.15rem;
}

.callout p {
    margin: 0;
    color: var(--muted);
}

.content h2 {
    margin: 0 0 12px;
    font-size: 2rem;
}

.content p,
.content li,
.content td,
.content th {
    font-size: 1rem;
}

.content ul {
    padding-left: 22px;
}

.content li + li {
    margin-top: 6px;
}

.reference-table {
    width: 100%;
    border-collapse: collapse;
    margin: 18px 0;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.reference-table th,
.reference-table td {
    padding: 12px 14px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--line);
}

.reference-table thead th {
    background: rgba(31, 24, 18, 0.05);
}

.reference-table tbody tr:last-child td {
    border-bottom: none;
}

pre,
code {
    font-family: var(--mono);
}

code {
    padding: 0.12em 0.34em;
    border-radius: 0.45em;
    background: rgba(31, 24, 18, 0.08);
    font-size: 0.92em;
}

pre {
    margin: 18px 0;
    padding: 18px 20px;
    overflow-x: auto;
    border-radius: var(--radius-md);
    background: var(--code-bg);
    color: var(--code-ink);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

pre code {
    padding: 0;
    background: transparent;
    color: inherit;
    font-size: 0.94rem;
}

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

@media (max-width: 1080px) {
    .site-shell {
        grid-template-columns: 1fr;
        padding: 18px 14px 40px;
    }

    .sidebar {
        position: static;
    }

    .callout-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .hero,
    .content section,
    .sidebar {
        padding: 22px 18px;
        border-radius: 20px;
    }

    .hero h1 {
        font-size: 2.35rem;
    }

    .content h2 {
        font-size: 1.7rem;
    }
}