:root {
  color-scheme: dark;
  font-family: Pretendard, Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --bg: oklch(0.04 0.012 250);
  --bg-2: oklch(0.075 0.018 250);
  --surface: oklch(0.11 0.018 250 / 0.86);
  --surface-soft: oklch(1 0 0 / 0.045);
  --line: oklch(0.28 0.022 250 / 0.72);
  --line-strong: oklch(0.42 0.035 250 / 0.86);
  --text: oklch(0.97 0.004 250);
  --muted: oklch(0.7 0.025 250);
  --accent: oklch(0.77 0.16 184);
  --accent-2: oklch(0.83 0.16 92);
  --danger: oklch(0.67 0.22 28);
  --warning: oklch(0.84 0.15 84);
  --success: oklch(0.74 0.16 154);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 0%, oklch(0.58 0.19 253 / 0.24), transparent 32rem),
    radial-gradient(circle at 88% 8%, oklch(0.78 0.15 181 / 0.17), transparent 30rem),
    linear-gradient(180deg, var(--bg-2), var(--bg) 36rem);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
.shell { width: min(980px, calc(100% - 32px)); margin: 0 auto; }
.nav { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin: 16px auto 0; padding: 12px; border: 1px solid var(--line); border-radius: 999px; background: oklch(0.08 0.014 250 / 0.72); backdrop-filter: blur(18px); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 850; letter-spacing: -0.03em; }
.brand-mark { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 14px; color: oklch(0.08 0.014 250); background: linear-gradient(135deg, var(--accent), var(--accent-2)); font-family: 'JetBrains Mono', Menlo, monospace; font-size: 12px; }
.nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; color: var(--muted); font-size: 14px; }
.nav-links a { padding: 9px 12px; border-radius: 999px; }
.nav-links a:hover { background: oklch(1 0 0 / 0.06); color: var(--text); }
.hero { padding: 92px 0 56px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-family: 'JetBrains Mono', Menlo, monospace; font-size: 12px; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
h1 { margin: 0 0 24px; max-width: 900px; font-size: clamp(46px, 8vw, 96px); line-height: 0.92; letter-spacing: -0.07em; }
h2 { margin: 0 0 18px; font-size: clamp(30px, 4.6vw, 54px); line-height: 1; letter-spacing: -0.055em; }
h3 { margin: 0 0 10px; font-size: 24px; letter-spacing: -0.035em; }
p, li { color: var(--muted); line-height: 1.7; }
.lede { max-width: 760px; font-size: clamp(18px, 2vw, 22px); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 18px; border-radius: 999px; border: 1px solid var(--line-strong); font-weight: 850; }
.button.primary { border: 0; color: oklch(0.08 0.014 250); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.button.secondary { background: oklch(1 0 0 / 0.045); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.card, .callout, .table-wrap, .template-block { border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(180deg, oklch(1 0 0 / 0.07), oklch(1 0 0 / 0.026)); box-shadow: 0 24px 80px rgba(0,0,0,0.28); }
.card, .callout { padding: 24px; }
.callout { margin: 28px 0; background: linear-gradient(135deg, oklch(0.77 0.16 184 / 0.13), oklch(1 0 0 / 0.03)); }
.section { padding: 48px 0; }
.kicker { display: inline-flex; margin-bottom: 18px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--accent); font-family: 'JetBrains Mono', Menlo, monospace; font-size: 11px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--text); font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; }
td strong { color: var(--text); }
.checklist { display: grid; gap: 12px; padding-left: 20px; }
.checklist li::marker { color: var(--accent); }
.template-block { padding: 20px; overflow: auto; background: oklch(0.045 0.012 250); }
pre { margin: 0; white-space: pre-wrap; color: oklch(0.91 0.006 250); font-family: 'JetBrains Mono', Menlo, monospace; font-size: 13px; line-height: 1.65; }
.source-list { display: grid; gap: 12px; padding-left: 20px; }
.footer { padding: 48px 0 64px; color: var(--muted); border-top: 1px solid var(--line); }
@media (max-width: 760px) { .nav { align-items: flex-start; border-radius: 24px; } .grid { grid-template-columns: 1fr; } .actions { flex-direction: column; } .button { width: 100%; } }