:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f7;
  --text: #1d1d1f;
  --text-soft: #6e6e73;
  --card: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --accent: #0071e3;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-soft: #101013;
    --text: #f5f5f7;
    --text-soft: #a1a1a6;
    --card: #1b1b1f;
    --border: rgba(255, 255, 255, 0.1);
    --accent: #2997ff;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  }
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.nav .brand {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav .links a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 14px;
  margin-left: 24px;
  transition: color 0.2s;
}

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

/* Hero */
.hero {
  text-align: center;
  padding: 96px 0 72px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero p {
  margin: 20px auto 0;
  max-width: 560px;
  font-size: 20px;
  color: var(--text-soft);
}

/* Apps */
.apps {
  padding: 24px 0 96px;
  display: grid;
  gap: 24px;
}

.app-card {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.app-card img {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.app-card h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.app-card .subtitle {
  font-size: 14px;
  color: var(--text-soft);
  margin: 2px 0 12px;
}

.app-card p.desc {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 16px;
}

.store-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.store-link:hover {
  text-decoration: underline;
}

/* Contact */
.contact {
  background: var(--bg-soft);
  text-align: center;
  padding: 72px 24px;
}

.contact h2 {
  font-size: 28px;
  font-weight: 700;
}

.contact p {
  color: var(--text-soft);
  margin-top: 8px;
}

.contact a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

/* Footer */
footer {
  padding: 32px 0 48px;
  text-align: center;
  font-size: 13px;
  color: var(--text-soft);
}

footer a {
  color: var(--text-soft);
  text-decoration: none;
}

footer a:hover {
  color: var(--text);
}

footer .legal {
  margin-top: 6px;
}

/* Privacy page */
.policy {
  padding: 64px 24px 96px;
  max-width: 760px;
  margin: 0 auto;
}

.policy h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.policy .updated {
  color: var(--text-soft);
  font-size: 14px;
  margin-bottom: 40px;
}

.policy h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 40px 0 12px;
}

.policy p,
.policy li {
  color: var(--text);
  font-size: 16px;
  margin-bottom: 12px;
}

.policy ul {
  padding-left: 24px;
  margin-bottom: 12px;
}

.policy a {
  color: var(--accent);
}

@media (max-width: 600px) {
  .app-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .hero {
    padding: 64px 0 48px;
  }
}