:root {
  color-scheme: dark;
  --page: #08111f;
  --surface: #0d192a;
  --surface-strong: #101f35;
  --text: #f5f8ff;
  --muted: #a9b7cb;
  --line: rgba(186, 211, 255, 0.18);
  --blue: #438cff;
  --mint: #3bd8af;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--page); }
body {
  margin: 0;
  min-width: 320px;
  background: var(--page);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }

.topbar, main, footer { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.topbar {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; }
.brand img { width: 34px; height: 34px; border-radius: 10px; }
nav { display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; font-weight: 700; }
nav a:last-child { color: var(--text); }
nav a:hover, footer a:hover { color: var(--mint); }

.hero {
  min-height: min(710px, calc(100vh - 78px));
  padding: 74px 0 54px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center;
}
.hero-mark { width: min(156px, 34vw); height: min(156px, 34vw); object-fit: contain; border-radius: 34px; box-shadow: 0 24px 64px rgba(35, 116, 255, 0.28); }
.eyebrow { margin: 28px 0 10px; color: var(--mint); font-size: 13px; font-weight: 800; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 14px; font-size: clamp(46px, 8vw, 82px); line-height: 0.98; font-weight: 900; }
.hero-copy { max-width: 630px; margin-bottom: 28px; color: var(--muted); font-size: clamp(17px, 2.2vw, 21px); line-height: 1.5; }
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; border-radius: 8px; font-weight: 800; }
.button-primary { background: var(--blue); color: #fff; box-shadow: 0 12px 30px rgba(42, 119, 255, 0.28); }
.button-primary:hover { background: #68a2ff; }
.button-secondary { border: 1px solid var(--line); color: var(--text); background: rgba(13, 25, 42, 0.86); }
.button-secondary:hover { border-color: var(--mint); color: var(--mint); }
.hero-facts { width: min(680px, 100%); margin: auto 0 0; padding-top: 42px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.hero-facts div { padding: 16px; border-top: 1px solid var(--line); text-align: left; }
.hero-facts dt { font-size: 16px; font-weight: 900; }
.hero-facts dd { margin: 5px 0 0; color: var(--muted); font-size: 13px; }

.feature-band { padding: 72px 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
.feature-band article { padding: 30px; background: var(--surface); min-height: 244px; }
.feature-number { color: var(--mint); font-weight: 900; font-size: 13px; }
.feature-band h2, .android-section h2 { margin: 26px 0 12px; font-size: 24px; line-height: 1.15; }
.feature-band p, .android-section p { color: var(--muted); line-height: 1.55; }

.android-section { padding: 86px 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 400px); align-items: center; gap: 72px; }
.android-section .eyebrow { margin-top: 0; }
.android-section h2 { font-size: clamp(32px, 4vw, 48px); }
.download-panel { padding: 28px; background: var(--surface-strong); border: 1px solid var(--line); border-radius: 8px; display: grid; gap: 10px; }
.download-label { margin: 0; color: var(--mint); font-size: 13px; font-weight: 800; text-transform: uppercase; }
.download-panel strong { font-size: 26px; }
.download-panel span, .download-panel small { color: var(--muted); }
.download-panel .button { margin-top: 12px; }
.download-panel .button + .button { margin-top: 0; }
.download-panel small { line-height: 1.45; }

footer { min-height: 96px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer a { color: var(--text); font-weight: 800; }

@media (max-width: 760px) {
  .topbar, main, footer { width: min(100% - 28px, 1160px); }
  .topbar { min-height: 66px; }
  nav { gap: 15px; font-size: 13px; }
  .hero { min-height: calc(100svh - 66px); padding-top: 50px; background-size: 52px 52px; }
  .hero-facts { padding-top: 30px; gap: 8px; }
  .hero-facts div { padding: 10px 4px; }
  .feature-band { grid-template-columns: 1fr; padding: 40px 0; }
  .feature-band article { min-height: 0; padding: 25px; }
  .android-section { padding: 62px 0; grid-template-columns: 1fr; gap: 28px; }
  footer { min-height: 78px; }
}