:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #0f1b2d;
  --muted: #5a6b82;
  --line: #e2e8f0;
  --accent: #0a84ff;
  --accent-ink: #ffffff;
  --ocean: linear-gradient(160deg, #0b3a6e 0%, #06203f 100%);
  --radius: 18px;
  --max: 1040px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a111c;
    --surface: #121c2b;
    --text: #e8eef7;
    --muted: #93a4bb;
    --line: #22314a;
    --accent: #4aa8ff;
    --accent-ink: #04121f;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header / footer */
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; font-size: 20px; color: var(--text); letter-spacing: -0.01em; }
.brand span { color: var(--accent); }
.nav a { margin-left: 22px; color: var(--muted); font-size: 15px; }
.nav a:hover { color: var(--text); text-decoration: none; }

.site-footer { border-top: 1px solid var(--line); margin-top: 80px; padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
.site-footer a { color: var(--muted); }

/* Hero */
.hero { padding: 80px 0 48px; }
.hero h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 16px; }
.hero p { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0; }

h2 { font-size: 26px; letter-spacing: -0.01em; margin: 48px 0 16px; }

/* App cards */
.apps { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.app-card { display: flex; gap: 16px; align-items: center; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); color: var(--text); }
.app-card:hover { text-decoration: none; border-color: var(--accent); }
.app-card img { width: 72px; height: 72px; border-radius: 16px; }
.app-card h3 { margin: 0 0 4px; font-size: 19px; }
.app-card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.4; }
.app-card.soon { border-style: dashed; color: var(--muted); justify-content: center; min-height: 112px; }

/* App page */
.app-hero { background: var(--ocean); color: #fff; padding: 64px 0; }
.app-hero .wrap { display: flex; gap: 32px; align-items: center; flex-wrap: wrap; }
.app-hero img.icon { width: 128px; height: 128px; border-radius: 28px; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.app-hero h1 { margin: 0 0 8px; font-size: clamp(32px, 5vw, 48px); letter-spacing: -0.02em; }
.app-hero p { margin: 0 0 20px; font-size: 19px; color: #b9d6f2; max-width: 560px; }

.button { display: inline-block; padding: 12px 22px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-weight: 600; border: 0; font-size: 16px; cursor: pointer; }
.button:hover { text-decoration: none; filter: brightness(1.08); }
.app-hero .button { background: #fff; color: #06203f; }

.shots { display: flex; gap: 18px; overflow-x: auto; padding: 8px 2px 16px; scroll-snap-type: x mandatory; }
.shots img { width: 240px; flex: 0 0 auto; border-radius: 16px; scroll-snap-align: start; box-shadow: 0 6px 20px rgba(0,0,0,.15); }

.features { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; padding: 0; list-style: none; }
.features li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.features strong { display: block; margin-bottom: 4px; }
.features span { color: var(--muted); font-size: 15px; }

.subnav { display: flex; gap: 20px; margin-top: 8px; font-size: 15px; }
.app-hero .subnav a { color: #b9d6f2; }

/* Text pages */
.prose { max-width: 720px; }
.prose h1 { font-size: 36px; letter-spacing: -0.02em; margin: 56px 0 8px; }
.prose .meta { color: var(--muted); margin: 0 0 32px; }
.prose h2 { font-size: 21px; margin: 32px 0 8px; }
.prose li { margin: 6px 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 24px 0; }
details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

@media (max-width: 560px) {
  .nav a { margin-left: 14px; }
  .shots img { width: 200px; }
}