:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --soft: #f5f5f7;
  --soft-2: #fbfbfd;
  --blue: #0071e3;
  --orange: #ff8a00;
  --green: #2fcf6a;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.12);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  letter-spacing: 0;
}

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

img,
video {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: min(1024px, calc(100% - 32px));
  min-height: 48px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.brand img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
}

.nav-links a:hover,
.download-link:hover {
  color: var(--ink);
}

.download-link {
  color: var(--blue);
  font-weight: 600;
}

.hero {
  min-height: calc(100vh - 48px);
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 88px;
  display: grid;
  align-items: center;
  gap: 48px;
}

.hero-copy {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.hero-icon {
  width: 92px;
  height: 92px;
  border-radius: 22px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.16);
}

.eyebrow {
  margin: 18px 0 10px;
  color: var(--muted);
  font-size: 19px;
  font-weight: 700;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(56px, 9vw, 128px);
  line-height: 0.92;
  font-weight: 800;
}

.hero-subtitle {
  max-width: 760px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.15;
  font-weight: 600;
}

.video-stage {
  position: relative;
  width: min(1040px, 100%);
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border-radius: 34px;
  overflow: hidden;
  background: #0b0d12;
  box-shadow: var(--shadow);
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  pointer-events: none;
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  color: #fff;
  font-size: 14px;
}

.video-placeholder span,
.video-placeholder strong {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.36);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.intro-band,
.privacy-section,
.download-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto 24px;
  padding: clamp(56px, 8vw, 96px);
  border-radius: 30px;
  background: var(--soft);
}

.intro-band p {
  max-width: 920px;
  margin: 0;
  font-size: clamp(32px, 5vw, 64px);
  line-height: 1;
  font-weight: 800;
}

.feature-grid {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 84px 0 24px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-heading h2,
.privacy-section h2,
.download-section h2 {
  margin-bottom: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  font-weight: 800;
}

.feature {
  overflow: hidden;
  border-radius: 30px;
  background: var(--soft-2);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-large {
  min-height: 640px;
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  align-items: center;
  gap: 28px;
  padding: clamp(32px, 6vw, 72px);
}

.feature-copy h3 {
  margin-bottom: 14px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  font-weight: 800;
}

.feature-copy p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.32;
  font-weight: 600;
}

.iphone-frame {
  justify-self: center;
  width: min(360px, 100%);
  border-radius: 48px;
  padding: 14px;
  background: #111;
  box-shadow: 0 32px 76px rgba(0, 0, 0, 0.2);
}

.iphone-frame img {
  display: block;
  border-radius: 36px;
}

.split-features {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.split-features .feature {
  min-height: 660px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 42px;
}

.media-panel {
  margin-top: 34px;
  border-radius: 26px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.08);
}

.media-panel img {
  display: block;
  width: 100%;
}

.privacy-section {
  margin-top: 72px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: start;
}

.privacy-section p:last-child {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.16;
  font-weight: 700;
}

.download-section {
  margin-top: 24px;
  text-align: center;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.download-section img {
  width: 84px;
  height: 84px;
  border-radius: 20px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.16);
}

.download-section p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 24px;
  font-weight: 700;
}

.footer {
  width: min(1024px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

@media (max-width: 820px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 42px;
  }

  .video-stage {
    border-radius: 24px;
  }

  .video-placeholder {
    display: block;
    left: 14px;
    right: 14px;
    bottom: 12px;
  }

  .video-placeholder strong {
    display: none;
  }

  .intro-band,
  .privacy-section,
  .download-section {
    border-radius: 24px;
    padding: 42px 28px;
  }

  .feature-large,
  .privacy-section,
  .split-features {
    grid-template-columns: 1fr;
  }

  .split-features .feature {
    min-height: auto;
    padding: 30px;
  }

  .feature-large {
    min-height: auto;
  }

  .footer {
    display: grid;
    gap: 8px;
  }
}