:root {
  --ink: #111111;
  --panel: #181a1d;
  --panel-high: #202328;
  --red: #c81e3a;
  --teal: #18c8b4;
  --line: #30343a;
  --text: #ffffff;
  --muted: #b8bdc7;
  --low: #7e8490;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: "Trebuchet MS", "Avenir Next", sans-serif;
}
a { color: inherit; text-decoration: none; }
.nav {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 36px;
  background: rgba(17,17,17,.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 20px; }
.brand img { width: 38px; height: 38px; border-radius: 8px; }
.nav nav, footer nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; color: var(--muted); }
.download, .primary {
  background: var(--red);
  color: white;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 800;
}
.hero {
  min-height: 92vh;
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 30px;
  align-items: center;
  padding: 44px 36px 28px;
}
.hero-copy { max-width: 680px; }
.eyebrow { color: var(--teal); text-transform: uppercase; letter-spacing: .08em; font-size: 13px; font-weight: 800; }
h1, h2 { margin: 0; line-height: 1.02; }
h1 { font-size: clamp(64px, 11vw, 150px); }
h2 { font-size: clamp(36px, 5vw, 72px); }
.subhead { color: var(--muted); font-size: clamp(20px, 2.4vw, 32px); line-height: 1.35; }
.actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0; }
.secondary { border: 1px solid var(--line); padding: 12px 18px; border-radius: 8px; color: var(--muted); }
.proof { display: flex; flex-wrap: wrap; gap: 10px; }
.proof span { border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 10px 12px; color: var(--muted); }
.hero-media { position: relative; min-height: 650px; }
.banner { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); opacity: .82; }
.phone { position: absolute; width: min(31vw, 270px); border-radius: 26px; border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(0,0,0,.55); }
.phone-a { right: 18%; bottom: 5%; }
.phone-b { right: 2%; top: 8%; }
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.features article { background: var(--ink); padding: 34px; min-height: 230px; }
.features span { color: var(--red); font-weight: 900; }
.features p, .screens p, .faq p, .final-cta p, footer p, .legal p, .legal li { color: var(--muted); line-height: 1.65; }
.screens { padding: 80px 36px; display: grid; grid-template-columns: .55fr 1fr; gap: 36px; align-items: start; }
.screen-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.screen-grid img { width: 100%; border-radius: 8px; border: 1px solid var(--line); }
.faq { padding: 80px 36px; max-width: 980px; }
details { border-bottom: 1px solid var(--line); padding: 22px 0; }
summary { cursor: pointer; font-size: 22px; font-weight: 800; }
.final-cta { display: grid; grid-template-columns: .65fr 1fr; gap: 32px; align-items: center; padding: 80px 36px; background: var(--panel); }
.final-cta img { width: 100%; max-width: 420px; border-radius: 8px; border: 1px solid var(--line); }
footer { display: flex; justify-content: space-between; gap: 24px; padding: 34px 36px; border-top: 1px solid var(--line); }
.legal { max-width: 920px; margin: 0 auto; padding: 70px 28px; }
.legal h1 { font-size: clamp(42px, 8vw, 86px); }

@media (max-width: 900px) {
  .nav { padding: 14px 18px; align-items: flex-start; }
  .nav nav { justify-content: flex-end; }
  .hero, .screens, .final-cta { grid-template-columns: 1fr; padding-left: 18px; padding-right: 18px; }
  .hero-media { min-height: 520px; }
  .phone { width: 44vw; }
  .features { grid-template-columns: 1fr; }
  .screen-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; padding: 28px 18px; }
}