/* Colors come from the app icon (white U$ on green) and the app's tint color. */
:root {
  --brand: #127a5e;        /* app tint, light mode: links and accents (5.3:1 on white) */
  --brand-top: #1f946e;    /* hero gradient, same green family as the icon */
  --brand-bottom: #0f6b52;
  --highlight: #ffeeb0;    /* warm accent on green */
  --ink: #1c1c1e; --muted: #5f6368; --bg: #f4f8f6; --card: #ffffff; --line: rgba(18, 122, 94, 0.14);
}
@media (prefers-color-scheme: dark) {
  :root { --brand: #3ccb94; --ink: #f2f2f7; --muted: #a1a1aa; --bg: #0c1512; --card: #15211d; --line: rgba(60, 203, 148, 0.18); }
}
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--brand); }
header.hero { background: linear-gradient(180deg, var(--brand-top), var(--brand-bottom)); color: #fff; padding: 48px 20px 60px; text-align: center; }
header.hero .app-icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 10px 30px rgba(0, 40, 28, 0.35); display: block; margin: 0 auto 16px; }
header.hero h1 { font-size: 44px; margin: 0 0 8px; letter-spacing: -0.5px; }
header.hero p { font-size: 20px; margin: 0 auto; max-width: 560px; }
header.hero .accent { color: var(--highlight); font-weight: 700; }
nav.top { text-align: center; padding: 14px; font-size: 15px; }
nav.top a { margin: 0 10px; text-decoration: none; font-weight: 600; }
main { max-width: 760px; margin: 0 auto; padding: 32px 20px 48px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.card { background: var(--card); border-radius: 16px; padding: 18px 20px; border: 1px solid var(--line); }
.card h3 { margin: 0 0 4px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
h1.page { font-size: 34px; margin: 0 0 4px; }
.updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 22px; margin: 32px 0 8px; }
.price { font-weight: 700; color: var(--ink); }
footer { text-align: center; color: var(--muted); font-size: 14px; padding: 24px 20px 40px; }
footer a { color: var(--muted); margin: 0 8px; }