:root {
  color-scheme: light;
  --bg: #f7f8f5;
  --ink: #101214;
  --muted: #5b6268;
  --line: #d9ddd7;
  --panel: #ffffff;
  --panel-soft: #eef4f3;
  --cyan: #00d7df;
  --cyan-dark: #006b70;
  --dark: #050606;
  --radius: 18px;
  --shadow: 0 22px 70px rgba(11, 25, 28, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(0, 215, 223, 0.16), transparent 30rem),
    linear-gradient(180deg, #fbfcf9 0%, var(--bg) 45%, #edf4f2 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(247, 248, 245, 0.82);
  border-bottom: 1px solid rgba(16, 18, 20, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 11px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 650;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(16, 18, 20, 0.12);
  background: var(--dark);
  color: white;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(16, 18, 20, 0.18);
}

.button.secondary {
  background: white;
  color: var(--ink);
  box-shadow: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  padding: clamp(56px, 8vw, 98px) clamp(20px, 5vw, 72px) 56px;
  max-width: 1220px;
  margin: 0 auto;
}

.eyebrow {
  color: var(--cyan-dark);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 770px;
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 7vw, 6.7rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

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

.hero-art {
  position: relative;
  min-height: 650px;
}

.phone-stack {
  position: absolute;
  inset: 0;
}

.phone-shot {
  position: absolute;
  width: min(390px, 52vw);
  border-radius: 38px;
  box-shadow: var(--shadow);
}

.phone-shot.primary {
  right: 0;
  top: 0;
  z-index: 2;
}

.phone-shot.secondary {
  left: 0;
  bottom: 18px;
  width: min(330px, 44vw);
  transform: rotate(-3deg);
}

.section {
  padding: 64px clamp(20px, 5vw, 72px);
}

.section-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.section h2 {
  max-width: 780px;
  margin-bottom: 14px;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1.02;
}

.section-lede {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.12rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.feature {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
}

.feature h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
}

.feature p {
  color: var(--muted);
}

.share-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.72fr);
  gap: 42px;
  align-items: center;
  padding: 44px;
  border-radius: 28px;
  background: #071011;
  color: white;
  overflow: hidden;
}

.share-band p {
  color: rgba(255, 255, 255, 0.72);
}

.share-band img {
  width: min(100%, 390px);
  margin: 0 auto;
  display: block;
  border-radius: 24px;
}

.notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.note {
  padding: 22px;
  border-left: 4px solid var(--cyan);
  background: white;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 34px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 18px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.page {
  max-width: 840px;
  min-height: 70vh;
  margin: 0 auto;
  padding: 56px clamp(20px, 5vw, 72px);
}

.page h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
}

.page h2 {
  margin-top: 34px;
  font-size: 1.5rem;
}

.page p,
.page li {
  color: var(--muted);
}

.page-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

@media (max-width: 900px) {
  .hero,
  .share-band,
  .feature-grid,
  .notes {
    grid-template-columns: 1fr;
  }

  .hero-art {
    min-height: 600px;
  }

  .phone-shot.primary {
    right: 4%;
  }

  .phone-shot.secondary {
    left: 4%;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.9rem;
  }

  .hero {
    padding-top: 42px;
  }

  .hero-art {
    min-height: 490px;
  }

  .phone-shot {
    width: 74vw;
  }

  .phone-shot.secondary {
    width: 62vw;
  }

  .share-band {
    padding: 28px;
  }
}