:root {
  color-scheme: dark;
  --bg: #090b0f;
  --panel: #121720;
  --line: rgba(255, 255, 255, 0.14);
  --text: #f7f8fb;
  --muted: rgba(247, 248, 251, 0.68);
  --cyan: #5de2ff;
  --amber: #ffc857;
  --mint: #66e3a1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 15% 0%, rgba(93, 226, 255, 0.18), transparent 28%),
    radial-gradient(circle at 88% 16%, rgba(255, 200, 87, 0.13), transparent 24%), var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.page {
  min-height: 100vh;
}

.hero {
  min-height: 82vh;
  padding: 22px clamp(18px, 4vw, 56px) 48px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  text-decoration: none;
  font-size: 18px;
  font-weight: 850;
}

.nav-links {
  display: flex;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.nav-links a {
  text-decoration: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 390px);
  align-items: center;
  gap: clamp(28px, 7vw, 90px);
  max-width: 1120px;
  margin: 78px auto 0;
}

.eyebrow {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(40px, 8vw, 86px);
  line-height: 0.94;
  letter-spacing: 0;
}

.lead {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
  font-weight: 560;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.primary,
.secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 850;
}

.primary {
  background: var(--amber);
  color: #08090c;
}

.secondary {
  border: 1px solid var(--line);
  color: var(--text);
}

.device {
  justify-self: center;
  width: min(100%, 330px);
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(145deg, #1a212d, #090b0f);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.screen {
  aspect-ratio: 9 / 16;
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  background: #0b0e13;
}

.status {
  position: absolute;
  top: 12px;
  left: 50%;
  z-index: 2;
  width: 88px;
  height: 22px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #050609;
}

.preview {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(93, 226, 255, 0.26), transparent 42%),
    linear-gradient(20deg, rgba(255, 200, 87, 0.22), transparent 46%), #171d25;
}

.safe-frame {
  position: absolute;
  left: 7%;
  right: 7%;
  top: 35%;
  height: 28%;
  border: 2px dashed rgba(255, 255, 255, 0.68);
  border-radius: 8px;
}

.dock {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(5, 6, 9, 0.72);
  backdrop-filter: blur(16px);
  font-weight: 850;
}

.dock button {
  width: 58px;
  height: 58px;
  border: 5px solid white;
  border-radius: 50%;
  background: #f24545;
}

.band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
}

.feature {
  min-height: 190px;
  padding: 30px clamp(18px, 3vw, 42px);
  background: rgba(12, 15, 20, 0.9);
}

.feature h2,
.doc h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.feature p,
.doc p,
.doc li {
  color: var(--muted);
  line-height: 1.72;
}

.doc {
  width: min(760px, calc(100% - 36px));
  margin: 0 auto;
  padding: 44px 0 64px;
}

.doc h1 {
  margin-top: 28px;
  font-size: clamp(34px, 7vw, 58px);
}

.back {
  color: var(--cyan);
  font-weight: 850;
  text-decoration: none;
}

.note {
  color: var(--amber);
}

@media (max-width: 820px) {
  .hero-grid,
  .band {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    margin-top: 52px;
  }

  .device {
    width: min(82vw, 320px);
  }
}