/* The look of the root page of the site. The tokens are the ones of the three projects (see docs/look.md);
   scripts/check-look.mjs checks that they have not drifted. */
:root {
  color-scheme: light;
  --bg: #f3f4f6;
  --surface: #ffffff;
  --ink: #1f2328;
  --muted: #59636e;
  --line: #d0d7de;
  --accent: #176b2b;
  --accent-soft: #ddf5e0;
  --warm: #9a6700;
  --warm-soft: #fff1d6;
  --code-bg: #f6f8fa;
  --label: #176b2b;
  --accent-contrast: #ffffff;
  --shadow: 0 8px 24px #17213b0a;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121417;
    --surface: #1a1d21;
    --ink: #d8dde3;
    --muted: #8b949e;
    --line: #2c3137;
    --accent: #63e879;
    --accent-soft: #173820;
    --warm: #ffb347;
    --warm-soft: #35291a;
    --code-bg: #0f1114;
    --label: #75d98a;
    --accent-contrast: #0b1220;
    --shadow: 0 8px 24px #00000040;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; padding: 36px 20px 64px; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
.wrap { max-width: 1100px; margin: auto; }
a { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--warm); outline-offset: 3px; border-radius: 4px; }

.brand { display: inline-block; margin: 0 0 18px; color: var(--accent); font-size: 16px; font-weight: 800; letter-spacing: -0.02em; text-decoration: none; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
h1 { max-width: 900px; margin: 0; font-size: clamp(34px, 5vw, 54px); line-height: 1.05; letter-spacing: -0.04em; }
h2 { margin: 0; font-size: 24px; line-height: 1.2; letter-spacing: -0.02em; }
.intro { max-width: 68ch; margin: 16px 0 0; color: var(--muted); font-size: 18px; }

.hero { padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-actions a { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 17px; border: 1px solid var(--line); border-radius: 9px; color: var(--ink); font-weight: 700; text-decoration: none; }
.hero-actions a:hover { border-color: var(--accent); background: var(--accent-soft); }
.hero-actions .primary { border-color: var(--accent); background: var(--accent); color: var(--accent-contrast); }
.hero-actions .primary:hover { filter: brightness(1.08); background: var(--accent); }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; margin: 34px 0 12px; }
.section-head p { margin: 0; color: var(--muted); font-size: 14px; }

.projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.project { display: flex; flex-direction: column; gap: 10px; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s; }
.project:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: var(--shadow); }
.kind { align-self: flex-start; padding: 3px 8px; border-radius: 7px; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: 0.05em; }
.project h3 { margin: 0; font-size: 20px; line-height: 1.25; }
.project h3 a { color: var(--ink); text-decoration: none; }
.project h3 a:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.project p { margin: 0; color: var(--muted); font-size: 15px; }
.project ul { margin: 0; padding-left: 1.1em; color: var(--muted); font-size: 14px; }
.project .open { margin-top: auto; align-self: flex-start; display: inline-flex; min-height: 44px; align-items: center; padding: 0 14px; border: 1px solid var(--accent); border-radius: 9px; color: var(--accent); font-weight: 700; text-decoration: none; }
.project .open:hover { background: var(--accent); color: var(--accent-contrast); }

.path { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; counter-reset: path; }
.path li { counter-increment: path; display: flex; gap: 12px; align-items: flex-start; padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
.path li::before { content: counter(path); display: grid; width: 28px; height: 28px; flex: 0 0 28px; place-items: center; border-radius: 50%; background: var(--warm-soft); color: var(--warm); font: 700 13px var(--mono); }
.path p { margin: 0; font-size: 14px; color: var(--muted); }
.path strong { color: var(--ink); }

footer { margin-top: 44px; color: var(--muted); font-size: 14px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .project { transition: none; }
  .project:hover { transform: none; }
}
@media (max-width: 720px) {
  body { padding: 22px 14px 48px; }
  .hero { padding: 22px; }
}