:root {
    color-scheme: dark;
    --background: #09090b;
    --surface: #151519;
    --surface-raised: #1e1e24;
    --text: #fafafa;
    --muted: #b5b5bf;
    --border: #303038;
    --accent: #ff3366;
    --accent-hover: #ff5c84;
    --focus: #76a9ff;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-synthesis: none;
}

* {
    box-sizing: border-box;
}

html {
    background: var(--background);
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    background: var(--background);
    line-height: 1.65;
}

a {
    color: inherit;
    text-decoration-color: var(--accent);
    text-underline-offset: 0.2em;
}

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

a:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 4px;
    border-radius: 2px;
}

.skip-link {
    position: fixed;
    z-index: 10;
    top: 12px;
    left: 12px;
    padding: 10px 14px;
    color: #09090b;
    background: #ffffff;
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    z-index: 5;
    top: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(9, 9, 11, 0.94);
    backdrop-filter: blur(14px);
}

.header-inner,
.content,
.footer-inner {
    width: min(100% - 40px, 1040px);
    margin-inline: auto;
}

.header-inner {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
}

.brand img {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: 7px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    font-size: 0.94rem;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
    color: var(--text);
}

.hero {
    min-height: min(78vh, 760px);
    display: grid;
    align-content: center;
    padding-block: 72px 88px;
    border-bottom: 1px solid var(--border);
}

.hero-mark {
    width: 96px;
    height: 96px;
    margin-bottom: 28px;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 750;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    margin: 0;
    line-height: 1.15;
    letter-spacing: 0;
}

h1 {
    max-width: 780px;
    font-size: 6.5rem;
}

.hero-copy {
    max-width: 680px;
    margin: 24px 0 0;
    color: var(--muted);
    font-size: 1.4rem;
}

.feature-band {
    padding-block: 76px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--border);
}

.feature {
    min-height: 210px;
    padding: 28px;
    background: var(--surface);
}

.feature h2 {
    font-size: 1.12rem;
}

.feature p {
    margin: 14px 0 0;
    color: var(--muted);
}

.document {
    max-width: 760px;
    padding-block: 64px 96px;
}

.document-header {
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.document h1 {
    font-size: 4.4rem;
}

.updated {
    margin: 16px 0 0;
    color: var(--muted);
}

.document section {
    padding-top: 34px;
}

.document h2 {
    font-size: 1.45rem;
}

.document p,
.document ul {
    color: #d2d2d8;
}

.document li + li {
    margin-top: 8px;
}

.contact-box {
    margin-top: 38px;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
}

.contact-box p {
    margin: 8px 0 0;
}

.site-footer {
    border-top: 1px solid var(--border);
}

.footer-inner {
    min-height: 92px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    color: var(--muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 20px;
}

@media (max-width: 720px) {
    .header-inner,
    .content,
    .footer-inner {
        width: min(100% - 28px, 1040px);
    }

    .site-nav {
        gap: 14px;
        font-size: 0.88rem;
    }

    .hero {
        min-height: 680px;
        padding-block: 58px 72px;
    }

    h1 {
        font-size: 3.6rem;
    }

    .hero-copy {
        font-size: 1.15rem;
    }

    .document h1 {
        font-size: 2.6rem;
    }

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

    .feature {
        min-height: auto;
    }

    .footer-inner {
        padding-block: 24px;
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 600px) {
    .brand span {
        display: none;
    }

    .site-nav {
        gap: 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}