:root {
    color-scheme: light;
    --bg: #f4f1e8;
    --bg-strong: #ebe4d5;
    --panel: rgba(255, 252, 244, 0.92);
    --panel-strong: rgba(255, 250, 240, 0.98);
    --ink: #1d2c2a;
    --ink-soft: #4d5c59;
    --line: rgba(29, 44, 42, 0.14);
    --accent: #1a6b65;
    --accent-strong: #0f514d;
    --accent-soft: rgba(26, 107, 101, 0.12);
    --warm: #b96b2c;
    --warm-soft: rgba(185, 107, 44, 0.14);
    --shadow: 0 24px 80px rgba(31, 39, 35, 0.12);
    --radius-lg: 28px;
    --radius-md: 18px;
    --content-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Avenir Next", "Segoe UI Variable", "Trebuchet MS", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(26, 107, 101, 0.14), transparent 28%),
        radial-gradient(circle at bottom right, rgba(185, 107, 44, 0.16), transparent 26%),
        linear-gradient(180deg, var(--bg), #f8f5ee);
}

a {
    color: var(--accent-strong);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

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

code,
pre {
    font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
}

code {
    padding: 0.12rem 0.34rem;
    border-radius: 0.45rem;
    background: rgba(29, 44, 42, 0.08);
    font-size: 0.94em;
}

pre {
    margin: 1.2rem 0 0;
    padding: 1.1rem 1.2rem;
    overflow-x: auto;
    border-radius: 1rem;
    background: #18211f;
    color: #f6f2e8;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(29, 44, 42, 0.1);
    background: rgba(249, 245, 236, 0.86);
}

.site-header__inner,
.site-footer__inner,
.doc-shell {
    width: min(calc(100% - 32px), var(--content-width));
    margin: 0 auto;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 0;
}

.brand {
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    color: var(--ink);
    text-decoration: none;
}

.brand__eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.brand__title {
    font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
}

.site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid transparent;
    border-radius: 999px;
    color: var(--ink-soft);
    text-decoration: none;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: var(--ink);
    border-color: rgba(29, 44, 42, 0.1);
    background: rgba(255, 255, 255, 0.7);
    transform: translateY(-1px);
}

.doc-main {
    padding: 34px 0 56px;
}

.page {
    padding: 34px 0 56px;
}

.doc-shell {
    display: grid;
    gap: 26px;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    font-size: 0.92rem;
    color: var(--ink-soft);
}

.breadcrumbs span:last-child {
    color: var(--ink);
}

.chapter {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--panel);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.chapter-header,
.chapter-section,
.chapter-footer {
    padding: 28px;
}

.chapter-header {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0)),
        linear-gradient(135deg, rgba(26, 107, 101, 0.12), rgba(185, 107, 44, 0.08));
    border-bottom: 1px solid var(--line);
}

.eyebrow {
    margin: 0 0 10px;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

h1,
h2,
h3 {
    margin: 0;
    font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
    letter-spacing: -0.03em;
    line-height: 1.08;
}

h1 {
    font-size: clamp(2.3rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(1.55rem, 2.8vw, 2.2rem);
    margin-bottom: 14px;
}

h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

p,
li,
td,
th {
    line-height: 1.72;
}

p {
    margin: 0;
    color: var(--ink-soft);
    font-size: 1rem;
}

.chapter-header p {
    max-width: 76ch;
    margin-top: 16px;
    font-size: 1.05rem;
}

.chapter-section {
    display: grid;
    gap: 18px;
    border-top: 1px solid rgba(29, 44, 42, 0.08);
}

.chapter-section:first-of-type {
    border-top: 0;
}

.callout {
    padding: 18px 20px;
    border-left: 4px solid var(--accent);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
}

.callout--warm {
    border-left-color: var(--warm);
    background: rgba(255, 248, 239, 0.9);
}

.grid-two {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mini-panel {
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.72);
}

.mini-panel p + p {
    margin-top: 10px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: 18px;
    overflow: hidden;
    background: var(--panel-strong);
    border: 1px solid var(--line);
}

.data-table th,
.data-table td {
    padding: 14px 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid rgba(29, 44, 42, 0.08);
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.data-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-soft);
    background: rgba(26, 107, 101, 0.08);
}

.inline-list,
.skill-list,
.chapter-section ul,
.chapter-section ol {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--ink-soft);
}

.chapter-section li + li {
    margin-top: 0.46rem;
}

.skill-list {
    display: grid;
    gap: 12px;
    list-style: none;
    padding-left: 0;
}

.skill-list li {
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.74);
}

.skill-list strong {
    display: block;
    margin-bottom: 6px;
    color: var(--ink);
}

.site-footer {
    padding: 0 0 42px;
}

.site-footer__inner {
    display: grid;
    gap: 10px;
    padding: 18px 24px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.66);
}

.site-footer p {
    font-size: 0.95rem;
}

.page__panel,
.loader-frame {
    width: min(calc(100% - 32px), var(--content-width));
    margin: 0 auto;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--panel);
    box-shadow: var(--shadow);
}

.loader-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(29, 44, 42, 0.08);
}

.loader-heading small {
    color: var(--ink-soft);
    font-size: 0.92rem;
}

.kicker {
    margin: 0 0 8px;
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.spec-meta {
    margin-top: 18px;
}

.spec-meta__grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.spec-meta__item {
    margin: 0;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.74);
}

.spec-meta__item dt {
    margin-bottom: 6px;
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-soft);
}

.spec-meta__item dd {
    margin: 0;
    color: var(--ink);
    line-height: 1.55;
}

.content {
    margin-top: 24px;
}

.content h1,
.content h2,
.content h3 {
    margin-top: 1.4rem;
}

.content p + p,
.content p + ul,
.content p + ol,
.content ul + p,
.content ol + p,
.content table + p {
    margin-top: 1rem;
}

.content ul,
.content ol {
    color: var(--ink-soft);
}

.content table {
    width: 100%;
    margin-top: 1rem;
    border-collapse: collapse;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.8);
}

.content th,
.content td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(29, 44, 42, 0.08);
    text-align: left;
    vertical-align: top;
}

.content tr:last-child td {
    border-bottom: 0;
}

.loading,
.error-panel {
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.74);
    color: var(--ink-soft);
}

.spec-status {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.83rem;
    font-weight: 600;
}

.spec-status--implemented {
    background: rgba(26, 107, 101, 0.12);
    color: var(--accent-strong);
}

.spec-status--draft,
.spec-status--review-needed {
    background: rgba(185, 107, 44, 0.16);
    color: #8f551f;
}

.spec-status--planned,
.spec-status--in-progress {
    background: rgba(36, 86, 141, 0.12);
    color: #24568d;
}

.spec-status--deprecated,
.spec-status--unknown {
    background: rgba(29, 44, 42, 0.1);
    color: var(--ink-soft);
}

@media (max-width: 920px) {
    .grid-two {
        grid-template-columns: 1fr;
    }

    .site-header__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-nav {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    .site-header__inner,
    .site-footer__inner,
    .doc-shell,
    .page__panel,
    .loader-frame {
        width: min(calc(100% - 20px), var(--content-width));
    }

    .chapter-header,
    .chapter-section,
    .chapter-footer {
        padding: 22px 18px;
    }

    .site-nav a {
        min-height: 36px;
        padding: 0 12px;
    }
}