:root {
  --canvas: #ffffff;
  --surface: #ffffff;
  --surface-2: #f7f7f8;
  --ink: #131316;
  --muted: #4b4d5a;
  --faint: #747686;
  --line: rgba(19, 19, 22, 0.1);
  --midnight: #131316;
  --accent: #6c47ff;
  --accent-hover: #6430f7;
  --on-accent: #ffffff;
  --shadow: 0 1px 2px rgba(19, 19, 22, 0.06), 0 4px 12px rgba(19, 19, 22, 0.06);
  --shadow-lift: 0 1px 2px rgba(19, 19, 22, 0.06), 0 8px 20px rgba(108, 71, 255, 0.12), 0 24px 48px rgba(19, 19, 22, 0.1);
  --wash-1: rgba(108, 71, 255, 0.22);
  --wash-2: rgba(0, 174, 227, 0.16);
  --wash-3: rgba(108, 71, 255, 0.1);
  --glass: rgba(255, 255, 255, 0.78);
  --vignette: transparent;
  color-scheme: light;
  --on-mid: #f7f7f8;
  --on-mid-muted: #a3a5b3;
  --mid-line: rgba(255, 255, 255, 0.1);
  --brand: #6c47ff;
  --brand-deep: #6430f7;
  --brand-soft: #b4a3ff;
  --sky: #00aee3;
  --green: #22c543;
  --sans: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Geist Mono', ui-monospace, Menlo, monospace;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --r-md: 6px;
  --r-card: 16px;
  --gut: 1.5rem;
  --section: clamp(4rem, 8vw, 8rem);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #131316;
    --surface: #1b1b20;
    --surface-2: #212126;
    --ink: #f7f7f8;
    --muted: #b8b9c4;
    --faint: #8d8f9e;
    --line: rgba(255, 255, 255, 0.1);
    --midnight: #0c0c0e;
    --accent: #8b6fff;
    --accent-hover: #a18bff;
    --on-accent: #ffffff;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lift: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 20px rgba(108, 71, 255, 0.2), 0 24px 48px rgba(0, 0, 0, 0.5);
    --wash-1: rgba(108, 71, 255, 0.34);
    --wash-2: rgba(0, 174, 227, 0.2);
    --wash-3: rgba(108, 71, 255, 0.16);
    --glass: rgba(27, 27, 32, 0.78);
    --vignette: rgba(0, 0, 0, 0.45);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --canvas: #131316;
  --surface: #1b1b20;
  --surface-2: #212126;
  --ink: #f7f7f8;
  --muted: #b8b9c4;
  --faint: #8d8f9e;
  --line: rgba(255, 255, 255, 0.1);
  --midnight: #0c0c0e;
  --accent: #8b6fff;
  --accent-hover: #a18bff;
  --on-accent: #ffffff;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lift: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 20px rgba(108, 71, 255, 0.2), 0 24px 48px rgba(0, 0, 0, 0.5);
  --wash-1: rgba(108, 71, 255, 0.34);
  --wash-2: rgba(0, 174, 227, 0.2);
  --wash-3: rgba(108, 71, 255, 0.16);
  --glass: rgba(27, 27, 32, 0.78);
  --vignette: rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--canvas); color: var(--ink); font-family: var(--sans); line-height: 1.7; letter-spacing: -0.01em; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--sky); outline-offset: 2px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 var(--gut); }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; max-width: 1200px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.3rem; letter-spacing: -0.04em; text-decoration: none; color: var(--ink); }
.logo svg { width: 26px; height: 26px; }
header nav a { color: var(--muted); text-decoration: none; font-size: .95rem; margin-left: 20px; }
main { padding: clamp(3rem, 7vw, 5rem) 0; }
.label { font-family: var(--mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); }
h1 { font-size: clamp(2.2rem, 5vw, 3.25rem); line-height: 1.05; letter-spacing: -0.045em; margin: 12px 0 8px; }
h2 { font-size: 1.3rem; letter-spacing: -0.03em; margin: 2.5rem 0 .5rem; }
p, li { color: var(--muted); }
ul { padding-left: 1.2rem; }
strong { color: var(--ink); font-weight: 600; }
.box { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 20px; margin-top: 24px; }
footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: .9rem; color: var(--faint); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; max-width: 1200px; }
footer a { color: var(--muted); text-decoration: none; margin-left: 16px; }