:root {
  --bg: #0b0c0d;
  --surface: #141617;
  --surface-strong: #1b1d1e;
  --text: #f3f1ed;
  --muted: #a7a49e;
  --line: #303234;
  --copper: #d9824b;
  --copper-soft: #efb07f;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; }
a { color: inherit; }
.site-header { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 2rem; max-width: var(--max); margin: 0 auto; padding: 1.1rem 1.5rem; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid color-mix(in srgb, var(--line) 65%, transparent); }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border: 1px solid var(--copper); border-radius: 50%; color: var(--copper-soft); font-size: .68rem; font-weight: 800; letter-spacing: -.08em; }
.brand-name { font-size: 1.1rem; letter-spacing: .02em; }
.brand-name strong, h1 span { color: var(--copper-soft); }
nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .35rem 1rem; }
nav a, .text-link, .topic a { color: var(--muted); font-size: .82rem; text-decoration: none; }
nav a:hover, nav a:focus-visible, .text-link:hover, .topic a:hover { color: var(--copper-soft); }
main { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem 4rem; }
.hero { min-height: 78vh; display: flex; flex-direction: column; justify-content: center; max-width: 820px; padding: 7rem 0 6rem; }
.eyebrow { margin: 0 0 1.2rem; color: var(--copper-soft); font-size: .72rem; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(4.5rem, 13vw, 10rem); font-weight: 700; letter-spacing: -.08em; line-height: .88; }
.hero-lead { max-width: 610px; margin: 2rem 0 0; color: var(--muted); font-size: clamp(1.15rem, 2vw, 1.55rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.2rem; }
.button { display: inline-block; padding: .8rem 1.1rem; border: 1px solid var(--line); border-radius: .2rem; text-decoration: none; font-size: .86rem; font-weight: 700; }
.button-primary { border-color: var(--copper); background: var(--copper); color: #15100c; }
.button-primary:hover { background: var(--copper-soft); }
.button-secondary:hover { border-color: var(--copper); color: var(--copper-soft); }
.status-line { display: inline-flex; align-items: center; gap: .55rem; margin-top: 4rem; color: var(--muted); font-size: .78rem; }
.status-dot { width: .5rem; height: .5rem; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 .25rem color-mix(in srgb, var(--copper) 14%, transparent); }
.section-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.topic { min-height: 230px; padding: 1.6rem 1.5rem 1.8rem 0; border-bottom: 1px solid var(--line); }
.topic:nth-child(3n+2), .topic:nth-child(3n+3) { padding-left: 1.5rem; border-left: 1px solid var(--line); }
.topic-index { color: var(--copper); font: .75rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
h2 { margin: .8rem 0 .6rem; font-size: clamp(1.3rem, 2.5vw, 2rem); letter-spacing: -.035em; }
.topic p { min-height: 4.8rem; margin: 0 0 1.4rem; color: var(--muted); font-size: .92rem; }
.topic a span { color: var(--copper-soft); }
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; padding: 8rem 0; border-bottom: 1px solid var(--line); }
.split-section h2 { max-width: 440px; font-size: clamp(2rem, 4vw, 3.3rem); }
.split-copy { max-width: 480px; align-self: end; color: var(--muted); }
.split-copy p { margin-top: 0; }
.text-link { display: inline-block; margin-top: 1rem; color: var(--copper-soft); }
.development-note { max-width: 650px; padding: 5rem 0 2rem; }
.development-note p:last-child { margin: 0; color: var(--muted); }
.site-footer { display: flex; justify-content: space-between; gap: 1rem; max-width: var(--max); margin: 0 auto; padding: 1.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .75rem; }
@media (max-width: 800px) { .site-header { align-items: flex-start; flex-direction: column; gap: .8rem; } nav { justify-content: flex-start; } .hero { min-height: 70vh; padding-top: 5rem; } .section-grid { grid-template-columns: 1fr 1fr; } .topic:nth-child(3n+3) { padding-left: 0; border-left: 0; } .topic:nth-child(2n) { padding-left: 1.5rem; border-left: 1px solid var(--line); } .topic:nth-child(3n+2) { padding-left: 1.5rem; border-left: 1px solid var(--line); } .split-section { grid-template-columns: 1fr; gap: 1rem; padding: 5rem 0; } }
@media (max-width: 520px) { main { padding-inline: 1rem; } .site-header { padding-inline: 1rem; } .section-grid { grid-template-columns: 1fr; } .topic, .topic:nth-child(2n), .topic:nth-child(3n+2), .topic:nth-child(3n+3) { padding-left: 0; border-left: 0; } .site-footer { flex-direction: column; padding-inline: 1rem; } }