:root {
  color-scheme: dark;
  --bg: #06101d;
  --surface: rgba(12, 31, 51, 0.88);
  --surface-strong: #0e2943;
  --line: #294a67;
  --text: #f2f8fd;
  --muted: #b3c7d9;
  --accent: #67e5ff;
  --accent-strong: #1ec6eb;
  --accent-ink: #04131f;
  --warning: #ffd58a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 82% -10%, rgba(33, 166, 217, 0.25), transparent 34rem),
    radial-gradient(circle at -15% 18%, rgba(68, 91, 255, 0.17), transparent 30rem),
    var(--bg);
}

a { color: var(--accent); }
a:hover { color: #a9f2ff; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--warning); outline-offset: 4px; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  color: var(--accent-ink);
  background: var(--accent);
  font-weight: 800;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid rgba(83, 128, 162, 0.35);
  background: rgba(6, 16, 29, 0.86);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1100px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 850;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: var(--accent-ink);
  background: linear-gradient(145deg, #a7f5ff, var(--accent-strong));
  box-shadow: 0 8px 24px rgba(26, 202, 237, 0.25);
  font-size: 19px;
}

.nav-links { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 5px; }
.nav-links a { padding: 9px 11px; border-radius: 10px; color: var(--muted); text-decoration: none; font-size: 0.92rem; font-weight: 650; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); background: rgba(103, 229, 255, 0.11); }

main { width: min(940px, calc(100% - 32px)); margin: 0 auto; padding: 62px 0 84px; }
.home-main { width: min(1100px, calc(100% - 32px)); }

.eyebrow { margin: 0 0 12px; color: var(--accent); font-size: 0.78rem; font-weight: 850; letter-spacing: 0.15em; text-transform: uppercase; }
h1 { max-width: 850px; margin: 0; font-size: clamp(2.25rem, 7vw, 4.7rem); line-height: 1.02; letter-spacing: -0.045em; }
.lead { max-width: 760px; margin: 20px 0 0; color: var(--muted); font-size: clamp(1.02rem, 2vw, 1.18rem); line-height: 1.7; }

.app-download {
  display: flex;
  justify-content: center;
  margin: 34px 0 4px;
}

.android-download-button {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  min-width: 220px;
  padding: 12px 22px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 14px;
  color: #fff;
  background: #050708;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.35), 0 0 0 5px rgba(103, 229, 255, 0.08);
  font-size: 1.25rem;
  font-weight: 760;
  line-height: 1.05;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.android-download-button:hover {
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.42), 0 0 0 6px rgba(103, 229, 255, 0.14);
  transform: translateY(-3px);
}

.android-download-button small {
  display: block;
  margin-bottom: 3px;
  color: #d8e2e8;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.google-play-icon {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
}

.meta-grid, .card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.meta-item, .link-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.16);
}

.meta-label { display: block; margin-bottom: 6px; color: #91abc0; font-size: 0.76rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.meta-value { overflow-wrap: anywhere; font-weight: 720; }

.document { margin-top: 38px; }
.document section {
  scroll-margin-top: 88px;
  margin-top: 16px;
  padding: clamp(21px, 4vw, 32px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.17);
}

h2 { margin: 0 0 14px; font-size: clamp(1.25rem, 3vw, 1.55rem); letter-spacing: -0.02em; }
h3 { margin: 24px 0 8px; font-size: 1.05rem; }
p, li { color: #c8d7e4; line-height: 1.72; }
p { margin: 10px 0; }
ul, ol { margin: 10px 0; padding-left: 24px; }
li + li { margin-top: 7px; }
strong { color: var(--text); }

.callout { margin-top: 22px; padding: 16px 18px; border-left: 4px solid var(--accent); border-radius: 10px; background: rgba(103, 229, 255, 0.08); }
.callout p { margin: 0; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
  padding: 13px 18px;
  border-radius: 12px;
  color: var(--accent-ink);
  background: var(--accent);
  font-weight: 820;
  text-decoration: none;
}
.button:hover { color: var(--accent-ink); background: #a7f5ff; }

.hero-panel { padding: clamp(28px, 6vw, 60px); border: 1px solid var(--line); border-radius: 30px; background: linear-gradient(140deg, rgba(18, 55, 88, 0.94), rgba(8, 25, 42, 0.92)); overflow: hidden; position: relative; }
.hero-panel::after { content: ""; position: absolute; width: 270px; height: 270px; right: -80px; bottom: -130px; border-radius: 50%; background: rgba(103, 229, 255, 0.12); filter: blur(5px); }
.hero-panel > * { position: relative; z-index: 1; }

.card-grid { margin-top: 20px; }
.link-card { display: flex; min-height: 210px; flex-direction: column; color: var(--text); text-decoration: none; transition: transform 160ms ease, border-color 160ms ease; }
.link-card:hover { color: var(--text); border-color: var(--accent-strong); transform: translateY(-3px); }
.card-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; color: var(--accent); background: rgba(103, 229, 255, 0.1); font-size: 21px; }
.link-card h2 { margin: 20px 0 8px; }
.link-card p { margin: 0; color: var(--muted); }
.card-action { margin-top: auto; padding-top: 18px; color: var(--accent); font-weight: 760; }

.site-footer { border-top: 1px solid rgba(83, 128, 162, 0.3); }
.footer-inner { display: flex; justify-content: space-between; width: min(1100px, calc(100% - 32px)); margin: 0 auto; padding: 26px 0 38px; gap: 18px; color: #8fa9bd; font-size: 0.9rem; }
.footer-inner p { margin: 0; color: inherit; }

@media (max-width: 760px) {
  .nav { align-items: flex-start; flex-direction: column; padding: 13px 0; gap: 8px; }
  .nav-links { justify-content: flex-start; }
  .nav-links a { padding: 7px 8px; font-size: 0.84rem; }
  main { padding-top: 42px; }
  .meta-grid, .card-grid { grid-template-columns: 1fr; }
  .link-card { min-height: 180px; }
  .footer-inner { flex-direction: column; }
}

@media print {
  :root { color-scheme: light; }
  body { color: #111; background: #fff; }
  .site-header, .site-footer, .skip-link { display: none; }
  main { width: 100%; padding: 0; }
  h1, h2, h3, strong { color: #111; }
  .lead, p, li, .meta-label { color: #333; }
  .meta-item, .document section { break-inside: avoid; border-color: #bbb; background: #fff; box-shadow: none; }
}