:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --text: #16161a;
  --muted: #6b6b73;
  --line: #e7e6e2;
  --accent: #5e3bd8;
  --accent-soft: #efeafd;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0f;
    --surface: #15151b;
    --text: #f2f2f5;
    --muted: #9a9aa5;
    --line: #26262e;
    --accent: #a58cff;
    --accent-soft: #221b3d;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 88px 20px 56px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Intro */
.mark {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  margin-bottom: 28px;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

.lede {
  font-size: 1.2rem;
  color: var(--muted);
  margin: 0 0 20px;
  max-width: 40ch;
}

.lede a { color: var(--text); text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; }
.lede a:hover { text-decoration-color: var(--accent); }

.about { color: var(--muted); margin: 0 0 24px; max-width: 58ch; }

.social { display: flex; gap: 20px; font-weight: 500; }

section { margin-top: 64px; }

.eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 16px;
}

h3 { margin: 0 0 6px; font-size: 1.1rem; letter-spacing: -0.01em; }

/* Cards */
.feature, .card {
  display: block;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.feature:hover, .card:hover {
  text-decoration: none;
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -12px rgba(0, 0, 0, 0.18);
}

.feature { display: flex; gap: 20px; padding: 24px; }

.feature-icon {
  flex: none;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
}

.feature p, .card p { margin: 0; color: var(--muted); font-size: 0.97rem; }

.more { display: inline-block; margin-top: 14px; color: var(--accent); font-weight: 500; font-size: 0.95rem; }

.tag {
  display: inline-block;
  vertical-align: 2px;
  margin-left: 6px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.card { padding: 22px; }
.card h3 { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 1rem; }

.meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
}

.meta li {
  font-size: 0.75rem;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
}

footer {
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

footer p { margin: 0; }

@media (max-width: 520px) {
  main { padding-top: 56px; }
  .feature { flex-direction: column; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .feature, .card { transition: none; }
  .feature:hover, .card:hover { transform: none; }
}