:root {
  --navy: #102f5a;
  --navy-deep: #08182d;
  --blue: #2f80ed;
  --blue-light: #78b2ff;
  --ink: #142033;
  --muted: #5b6b80;
  --line: #dde5ef;
  --surface: #ffffff;
  --bg: #f5f7fa;
  --radius: 16px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --navy: #78b2ff;
    --navy-deep: #04101f;
    --ink: #f3f7fc;
    --muted: #9fb2c8;
    --line: #1b3454;
    --surface: #102541;
    --bg: #08182d;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--blue); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-head {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.site-head .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  font-weight: 500;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.site-head nav {
  display: flex;
  gap: 20px;
  font-size: 15px;
}

.site-head nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-head nav a:hover { color: var(--blue); }

/* Hero */
.hero {
  padding: 72px 0 40px;
  text-align: center;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 5.4vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0 auto;
  max-width: 620px;
  font-size: 18px;
  color: var(--muted);
}

/* App grid */
.apps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  padding-bottom: 64px;
}

.app-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform .15s ease, border-color .15s ease;
}

a.app-card:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
}

.app-card img {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  display: block;
}

.app-card h2 {
  margin: 0;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.app-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  flex: 1;
}

.tag {
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--blue) 14%, transparent);
  color: var(--blue);
}

/* Prose pages */
.prose {
  max-width: 760px;
  padding: 48px 24px 72px;
  margin: 0 auto;
}

.prose h1 {
  font-size: clamp(28px, 4.4vw, 36px);
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.prose .updated {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 32px;
}

.prose h2 {
  margin: 36px 0 10px;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.prose h3 {
  margin: 24px 0 8px;
  font-size: 16px;
}

.prose ul { padding-left: 22px; }

.prose li { margin: 6px 0; }

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
}

.prose th, .prose td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.prose th { color: var(--muted); font-weight: 600; }

.note {
  padding: 16px 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  margin: 20px 0;
}

/* Footer */
.site-foot {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 28px 0;
  font-size: 14px;
  color: var(--muted);
}

.site-foot .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  justify-content: space-between;
}

.site-foot a { color: var(--muted); text-decoration: none; }

.site-foot a:hover { color: var(--blue); }

@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .prose { padding: 32px 16px 56px; }
  .hero { padding: 48px 0 28px; }
  .site-head .wrap { flex-direction: column; align-items: flex-start; padding-top: 12px; padding-bottom: 12px; }
}