@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --bg: #0d1219;
    --bg-soft: #121a25;
    --panel: #172231;
    --panel-2: #1a2738;
    --sidebar: #101822;
    --line: #243448;
    --text: #e8eef9;
    --muted: #a3b4cb;
    --accent: #33d0a0;
    --accent-2: #ff9d66;
    --shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: Inter, sans-serif;
    background: radial-gradient(1200px 420px at 18% -10%, rgba(51, 208, 160, 0.18), transparent 60%),
                radial-gradient(980px 420px at 86% -12%, rgba(255, 157, 102, 0.13), transparent 58%),
                var(--bg);
    color: var(--text);
}

a {
    color: #8fd8c4;
    text-decoration: none;
}

a:hover {
    color: #b7f1e2;
}

/* Global Topbar */
.site-topbar {
    background: linear-gradient(180deg, #0f1722, #0b131d);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 40;
}

.site-topbar-inner {
    width: min(1240px, 96vw);
    margin: 0 auto;
    min-height: 62px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 800;
    letter-spacing: 0.01em;
    font-size: 22px;
}

.site-brand img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.site-links {
    margin-left: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 14px;
}

.site-links a {
    color: #b5c6df;
    padding-bottom: 2px;
}

.site-links a.active {
    color: #eff6ff;
    border-bottom: 2px solid var(--accent);
}

/* Landing */
.hero {
    background: linear-gradient(145deg, #122030, #172b3f 60%, #1f2738);
    box-shadow: var(--shadow);
}

.hero-inner {
    width: min(980px, 92vw);
    margin: 0 auto;
    text-align: center;
    padding: 56px 0 62px;
}

.hero-logo {
    width: 82px;
    height: 82px;
    object-fit: contain;
}

.hero h1 {
    margin: 10px 0 8px;
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 300;
    color: #edf4ff;
}

.hero p {
    margin: 0 auto;
    max-width: 700px;
    color: #bfd0e8;
    line-height: 1.6;
}

.hero .cta {
    margin-top: 26px;
    display: inline-block;
    border: 1px solid rgba(51, 208, 160, 0.85);
    color: #d7fff3;
    padding: 12px 28px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 700;
    background: rgba(51, 208, 160, 0.08);
}

.landing-section {
    width: min(980px, 92vw);
    margin: 28px auto;
    background: linear-gradient(180deg, var(--panel), var(--panel-2));
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 28px;
}

.landing-section h2 {
    margin: 0 0 10px;
    font-size: 34px;
    color: #ddf5ee;
    text-align: center;
    font-weight: 800;
}

.landing-section p {
    margin: 0 auto 14px;
    max-width: 760px;
    text-align: center;
    color: var(--muted);
    line-height: 1.7;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.card {
    border: 1px solid #2a3d52;
    border-radius: 8px;
    background: #132131;
    padding: 14px;
}

.card h3 {
    margin: 0 0 6px;
    font-size: 16px;
    color: #d5fff4;
}

.card p {
    text-align: left;
    margin: 0;
    font-size: 14px;
    color: var(--muted);
}

/* Docs layout */
.docs-shell {
    width: min(1320px, 98vw);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 0;
    min-height: calc(100vh - 62px);
}

.docs-sidebar {
    background: var(--sidebar);
    border-right: 1px solid var(--line);
    padding: 20px 16px 30px;
    position: sticky;
    top: 62px;
    height: calc(100vh - 62px);
    overflow-y: auto;
}

.docs-group {
    margin-bottom: 18px;
}

.docs-group h4 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 700;
    color: #d2e3fb;
    letter-spacing: 0.01em;
}

.docs-group ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.docs-group li {
    margin: 2px 0;
}

.docs-group a {
    display: block;
    padding: 7px 10px;
    border-radius: 5px;
    color: #9cb3d3;
    font-size: 13px;
}

.docs-group a.active {
    background: rgba(51, 208, 160, 0.12);
    color: #cffff0;
    font-weight: 600;
    border-left: 3px solid var(--accent);
    padding-left: 8px;
}

.docs-main {
    padding: 30px 42px;
    background: #121c29;
}

.docs-main h1 {
    margin: 0 0 14px;
    font-size: 42px;
    color: #f2f8ff;
}

.docs-main h2 {
    margin: 26px 0 10px;
    font-size: 26px;
    color: #d8e9ff;
    border-bottom: 1px solid var(--line);
    padding-bottom: 8px;
}

.docs-main h3 {
    margin: 18px 0 8px;
    font-size: 20px;
    color: #d5f9ee;
}

.docs-main p,
.docs-main li {
    color: var(--muted);
    line-height: 1.65;
    font-size: 16px;
}

.docs-main ul,
.docs-main ol {
    padding-left: 20px;
}

.docs-main pre {
    background: #0b121c;
    color: #d8e6ff;
    border-radius: 8px;
    padding: 14px;
    overflow-x: auto;
    border: 1px solid #223247;
    font-size: 14px;
    line-height: 1.5;
}

.notice {
    border-left: 4px solid var(--accent);
    background: rgba(51, 208, 160, 0.12);
    border-radius: 5px;
    padding: 10px 12px;
    font-size: 14px;
    color: #c5f8ea;
}

.notice.warn {
    border-left-color: var(--accent-2);
    background: rgba(255, 157, 102, 0.14);
    color: #ffe3d2;
}

.footer {
    width: min(1240px, 96vw);
    margin: 24px auto 40px;
    color: #7c91ad;
    font-size: 13px;
    text-align: center;
}

.legal-banner {
    width: min(1240px, 96vw);
    margin: 12px auto 28px;
    border: 1px solid #2a3c52;
    border-radius: 10px;
    background: #101823;
    padding: 12px 14px;
    color: #b8c9df;
    font-size: 12px;
    line-height: 1.6;
}

.legal-banner p {
    margin: 4px 0;
}

.legal-banner strong {
    color: #d9f8ef;
}

@media (max-width: 1080px) {
    .docs-shell {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--line);
    }

    .docs-main {
        padding: 22px 18px;
    }

    .site-topbar-inner {
        min-height: 0;
        padding: 10px 0;
        flex-wrap: wrap;
    }
}