:root {
    --bg: #080b12;
    --panel: #111827;
    --panel-soft: #151d2e;
    --text: #edf2ff;
    --muted: #a9b4c7;
    --line: rgba(255, 255, 255, 0.12);
    --accent: #8fd7ff;
    --accent-2: #c6f6d5;
    --warn: #f7d794;
    --max: 1120px;
    --radius: 24px;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.65;
    background: radial-gradient(circle at 20% 0%, rgba(143, 215, 255, 0.18), transparent 32rem), var(--bg);
    color: var(--text);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(var(--max), calc(100% - 2rem)); margin-inline: auto; }
.narrow { max-width: 780px; }
.skip-link { position: absolute; left: -999px; top: 1rem; }
.skip-link:focus { left: 1rem; z-index: 10; background: var(--text); color: var(--bg); padding: .5rem .75rem; border-radius: .5rem; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 5;
    border-bottom: 1px solid var(--line);
    background: rgba(8, 11, 18, 0.86);
    backdrop-filter: blur(18px);
}
.header-grid { display: flex; justify-content: space-between; align-items: center; gap: 1.25rem; padding: 1rem 0; }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: var(--text); text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 2.3rem; height: 2.3rem; border: 1px solid var(--line); border-radius: .85rem; color: var(--accent-2); }
.brand strong, .brand em { display: block; line-height: 1.1; }
.brand em { color: var(--muted); font-style: normal; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; }
.site-nav { display: flex; flex-wrap: wrap; gap: .25rem; justify-content: flex-end; }
.site-nav a { color: var(--muted); padding: .5rem .65rem; border-radius: 999px; font-size: .95rem; }
.site-nav a.active, .site-nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.08); text-decoration: none; }

.hero { padding: 6rem 0 4rem; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: 2rem; align-items: center; }
h1, h2, h3 { line-height: 1.08; margin: 0 0 1rem; }
h1 { font-size: clamp(3rem, 9vw, 7rem); letter-spacing: -.07em; }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); letter-spacing: -.04em; }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1rem; }
.tagline { font-size: clamp(1.2rem, 3vw, 2rem); color: var(--muted); max-width: 760px; }
.hero-copy, .lead { font-size: 1.16rem; color: #d3dcf0; }
.robot-check {
    display: inline-flex;
    margin: 1.5rem 0;
    padding: .85rem 1rem;
    border: 1px solid rgba(198, 246, 213, .45);
    border-radius: 999px;
    color: var(--accent-2);
    background: rgba(198, 246, 213, .08);
    font-weight: 700;
}
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .16em; font-size: .78rem; font-weight: 800; margin-bottom: .75rem; }
.card, .principle-box, .note-card, .disclosure {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.025));
    box-shadow: 0 24px 80px rgba(0,0,0,.28);
}
.principle-box, .note-card { padding: 1.35rem; }
.principle-box ul, .resource-list ul { padding-left: 1.15rem; color: var(--muted); }

.pillars, .post-grid, .resource-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card { padding: 1.25rem; }
.card p, .card li { color: var(--muted); }
.card h3 a { color: var(--text); }
.text-link { font-weight: 700; }
.split-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .45fr); gap: 2rem; padding: 4rem 0; align-items: start; }
.latest-section { padding: 3rem 0 5rem; }
.section-heading { margin-bottom: 1.25rem; }
.page-hero { padding: 5rem 0 2.5rem; }
.article { padding: 4rem 0 5rem; }
.article h1 { font-size: clamp(2.5rem, 6vw, 4.7rem); }
.article-meta, .small { color: var(--muted); font-size: .92rem; }
.article-meta-box, .sources {
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1rem;
    margin: 1.25rem 0;
    background: rgba(255, 255, 255, .045);
    color: var(--muted);
}
.article-meta-box p { margin-bottom: .45rem; }
.sources h2 { font-size: 1.4rem; margin-bottom: .75rem; }
.sources ul { padding-left: 1.2rem; }
.prose { color: #d7dff0; }
.prose h2 { margin-top: 2.2rem; font-size: clamp(1.5rem, 3vw, 2.25rem); }
.prose p, .prose li { color: #d7dff0; }
.disclosure { padding: 1rem; margin: 1.5rem 0; border-color: rgba(247, 215, 148, .45); background: rgba(247, 215, 148, .08); color: #fff4d6; }
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

@media (max-width: 860px) {
    .header-grid, .hero-grid, .split-section, .footer-grid { grid-template-columns: 1fr; display: grid; }
    .pillars, .post-grid, .resource-list { grid-template-columns: 1fr; }
    .site-nav { justify-content: flex-start; }
    .hero { padding-top: 3.5rem; }
}