:root {
  --bg: #ffffff;
  --bg-elev: #ffffff;
  --text: #0a0a0a;
  --muted: #6e6e73;
  --line: #e8e8ed;
  --brand: #0071e3;
  --brand-dark: #005bb5;
  --shadow: none;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "SF Pro Text", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0ea5e9, #22c55e);
  box-shadow: 0 0 0 5px rgba(0, 113, 227, 0.12);
}

.nav-links {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--muted);
}

.hero {
  padding: 96px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 40px;
  align-items: center;
}

.hero-copy {
  grid-column: span 7;
}

.hero-copy h1 {
  font-size: clamp(40px, 5.2vw, 68px);
  margin: 0 0 18px;
  letter-spacing: -0.03em;
}

.hero-copy p {
  font-size: 19px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid #d2d2d7;
  background: var(--bg-elev);
  font-weight: 600;
  font-size: 13px;
  box-shadow: none;
}

.button.primary {
  background: #0071e3;
  color: #ffffff;
  border: none;
}

.appstore-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.appstore-badge {
  height: 42px;
  width: auto;
  display: block;
}

.hero-device {
  grid-column: span 5;
  display: flex;
  justify-content: center;
}

.iphone {
  width: min(100%, 320px);
  border-radius: 42px;
  padding: 12px;
  position: relative;
  background: #0b0b0f;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

.iphone::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 118px;
  height: 16px;
  background: #101116;
  border-radius: 10px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.iphone::after {
  content: "";
  position: absolute;
  right: 7px;
  top: 110px;
  width: 4px;
  height: 56px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.iphone-inner {
  border-radius: 34px;
  padding: 10px;
  background: #0b0b0f;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.iphone-screen {
  background: #f5f5f7;
  border-radius: 24px;
  padding: 14px;
  min-height: 540px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 14px;
  text-align: center;
  overflow: hidden;
}

.iphone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 18px;
}

.section {
  padding: 96px 0;
}

.section-header {
  margin-bottom: 32px;
}

.section-title {
  font-size: 34px;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--muted);
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-elev);
  border-radius: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  box-shadow: none;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 14px;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: start;
}

.list {
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 15px;
}

.list span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand);
}

.footer {
  padding: 40px 0 60px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.footer a {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: #f5f5f7;
  color: #1d1d1f;
  font-size: 12px;
  font-weight: 600;
}

.notice {
  background: #f5f5f7;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14px;
  color: var(--muted);
}


@media (max-width: 900px) {
  .hero-copy {
    grid-column: span 12;
  }

  .hero-device {
    grid-column: span 12;
  }

  .hero {
    padding-top: 60px;
  }
}