:root {
  --ink: #102a2c;
  --text: #1f2937;
  --muted: #5b6672;
  --line: #e2e8ea;
  --bg: #ffffff;
  --soft: #f3f7f7;
  --accent: #0f8b8d;
  --accent-2: #e8a33d;
  --link: #0b6f71;
  --radius: 14px;
  --wrap: 1040px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e6f1f1;
    --text: #d5dee0;
    --muted: #97a6aa;
    --line: #26363a;
    --bg: #0d1517;
    --soft: #152226;
    --accent: #3cc3c5;
    --link: #6fd6d8;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--link); }
img { max-width: 100%; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; padding-top: 14px; padding-bottom: 14px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none; font-weight: 700; font-size: 20px;
}
.brand img { width: 32px; height: 32px; }
.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 600;
  padding: 6px 10px; border-radius: 8px;
}
.nav a:hover { color: var(--ink); background: var(--soft); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--soft); }

/* Hero */
.hero { padding: 64px 0 48px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
}
.hero h1 { font-size: clamp(34px, 6vw, 54px); line-height: 1.1; margin: 0 0 18px; color: var(--ink); }
.hero p.lead { font-size: 20px; color: var(--muted); max-width: 680px; margin: 0 0 28px; }

.app-hero { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.app-hero img { width: 128px; height: 128px; border-radius: 28px; box-shadow: 0 6px 24px rgba(0,0,0,.15); }
.app-hero > div { flex: 1 1 320px; }

.buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 20px; border-radius: 10px; font-weight: 700;
  text-decoration: none; font-size: 16px; border: 2px solid var(--ink);
}
.btn.primary { background: var(--ink); color: var(--bg); }
.btn.ghost { color: var(--ink); }

/* Sections */
section { padding: 40px 0; }
section.alt { background: var(--soft); }
h2 { color: var(--ink); font-size: 28px; line-height: 1.25; margin: 0 0 12px; }
h3 { color: var(--ink); font-size: 19px; margin: 0 0 6px; }
.section-intro { color: var(--muted); max-width: 680px; margin: 0 0 28px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column;
}
section:not(.alt) .card { background: var(--soft); border-color: transparent; }
.card p { margin: 0 0 14px; color: var(--muted); font-size: 16px; }
.card .more { font-weight: 700; text-decoration: none; }
.card .icon { width: 72px; height: 72px; border-radius: 16px; margin-bottom: 14px; }
.card .icon.placeholder {
  display: grid; place-items: center; background: var(--line); color: var(--muted);
  font-weight: 800; font-size: 26px;
}
.card .tag {
  align-self: flex-start; font-size: 12px; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; padding: 2px 8px; border-radius: 6px; margin-bottom: 10px;
  background: var(--line); color: var(--muted);
}

.card .card-links { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.stores { display: flex; gap: 8px; flex-wrap: wrap; }
.store {
  font-size: 14px; font-weight: 700; text-decoration: none; color: var(--bg);
  background: var(--ink); padding: 6px 12px; border-radius: 8px;
}

/* Platform badges */
.plats { list-style: none; padding: 0; margin: 2px 0 12px; display: flex; gap: 6px; flex-wrap: wrap; }
.plat {
  font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted); background: var(--bg);
}
section:not(.alt) .plat { background: var(--bg); }
.plat.iphone, .plat.ipad { border-color: #9cc9ca; color: #0b6f71; }
.plat.android { border-color: #b5d69a; color: #3d6b1c; }
@media (prefers-color-scheme: dark) {
  .plat.iphone, .plat.ipad { border-color: #2c6b6d; color: #7fd9db; }
  .plat.android { border-color: #4b6b33; color: #a8db86; }
}

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.section-head h2 { margin: 0; }
.section-head a { font-weight: 700; text-decoration: none; }

.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { padding-left: 26px; position: relative; margin: 8px 0; }
.ticks li::before {
  content: ""; position: absolute; left: 4px; top: .62em; width: 10px; height: 10px;
  border-radius: 50%; background: var(--accent);
}
.ticks li:nth-child(even)::before { background: var(--accent-2); }

/* Document pages */
.doc { padding: 48px 0 64px; }
.doc h1 { color: var(--ink); font-size: clamp(30px, 5vw, 42px); line-height: 1.15; margin: 0 0 8px; }
.doc .meta { color: var(--muted); margin: 0 0 32px; }
.doc h2 { font-size: 24px; margin: 40px 0 10px; padding-top: 8px; }
.doc h3 { margin: 24px 0 6px; }
.doc li { margin: 6px 0; }

.note {
  border-left: 4px solid var(--accent); background: var(--soft);
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 18px 0;
}
.note p { margin: 0; }

details {
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin: 10px 0;
}
details summary { cursor: pointer; font-weight: 700; color: var(--ink); }
details[open] summary { margin-bottom: 8px; }
details p { margin: 6px 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 15px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .hero { padding: 40px 0 32px; }
  .hero p.lead { font-size: 18px; }
  section { padding: 32px 0; }
  .app-hero img { width: 96px; height: 96px; border-radius: 22px; }
}