:root {
    --background: #1c1c24;
    --container: #3a3a4c;
    --container-high: #4a4a60;
    --outline: #8e8ea6;
    --primary: #a78bfa;
    --on-primary: #0a0012;
    --tertiary: #34d399;
    --on-surface: #fafafa;
    --muted: #a1a1aa;
    --secondary: #71717a;
    --radius: 12px;
    --width: 720px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--background);
    color: var(--on-surface);
    font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--primary); text-decoration: none; }

a:hover { text-decoration: underline; }

.wrap {
    width: min(var(--width), calc(100% - 32px));
    margin: 0 auto;
}

header {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--container);
    border-bottom: 1.5px solid var(--outline);
}

.bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 56px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--on-surface);
    font-weight: 650;
    letter-spacing: 0.12em;
    text-decoration: none;
}

.brand:hover { text-decoration: none; }

.mark {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    background: #5a5a74;
    border-radius: 8px;
    color: var(--primary);
}

nav { display: flex; gap: 18px; }

nav a {
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
}

nav a[aria-current="page"] { color: var(--on-surface); }

main { padding: 28px 0 64px; }

.hero img,
img.hero {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin-bottom: 22px;
}

.kicker {
    margin: 0 0 8px;
    color: var(--tertiary);
    font: 600 11px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 12px;
    font-size: 32px;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.lead, .updated {
    color: var(--muted);
    margin: 0 0 18px;
}

.cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 22px;
}

.card, .section {
    background: var(--container);
    border: 1.5px solid var(--outline);
    border-radius: var(--radius);
}

.card {
    display: block;
    padding: 18px;
    color: inherit;
}

.card:hover { text-decoration: none; border-color: var(--primary); }

.card strong { display: block; margin-bottom: 6px; }

.card span { color: var(--muted); font-size: 14px; }

.section { padding: 18px 18px 6px; margin: 0 0 12px; }

.section h2 {
    margin: 0 0 8px;
    font-size: 18px;
}

.section p, .section li { color: var(--muted); }

.section ul { margin: 0 0 12px; padding-left: 18px; }

.section li { margin: 0 0 6px; }

footer {
    border-top: 1.5px solid var(--outline);
    color: var(--secondary);
    font-size: 13px;
}

footer .wrap {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 0 28px;
}

@media (max-width: 640px) {
    h1 { font-size: 26px; }
    .cards { grid-template-columns: 1fr; }
    nav { gap: 12px; }
    footer .wrap { flex-direction: column; }
}