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

:root {
  --bg: #080c18;
  --surface: #0f1628;
  --surface2: #151e35;
  --border: #1e2a45;
  --primary: #3b82f6;
  --primary-light: #60c5ff;
  --text: #f0f4ff;
  --text-dim: #8a9abf;
  --text-faint: #4a5870;
  --radius: 16px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 24, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo img {
  height: 36px;
  display: block;
}

nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

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

nav a.nav-cta {
  color: var(--primary-light);
  font-weight: 600;
}

nav a.nav-cta:hover { color: #fff; }

/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 100px 0 80px;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(59,130,246,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 64px;
}

.hero-text { flex: 1; }

.hero-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary-light);
  background: rgba(96,197,255,0.1);
  border: 1px solid rgba(96,197,255,0.2);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 24px;
}

.hero-text h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-icon {
  flex-shrink: 0;
}

.hero-icon img {
  width: 220px;
  height: 220px;
  border-radius: 48px;
  box-shadow: 0 32px 80px rgba(59,130,246,0.35), 0 8px 24px rgba(0,0,0,0.5);
}

/* ── App Store Button ── */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 12px;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(59,130,246,0.4);
}

.btn-appstore:hover {
  background: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(59,130,246,0.5);
}

.btn-appstore:active { transform: translateY(0); }

/* ── Section titles ── */
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.15;
  text-align: center;
  margin-bottom: 56px;
}

/* ── Features ── */
.features {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: rgba(59,130,246,0.4);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 26px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ── Screenshots ── */
.screenshots {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.screenshots-grid {
  display: flex;
  gap: 32px;
  justify-content: center;
  align-items: flex-start;
}

.screenshot-item {
  flex: 1;
  max-width: 280px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.screenshot-item img {
  width: 100%;
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  display: block;
}

.screenshot-item p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 220px;
}

/* ── How it works ── */
.how {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
}

.step {
  flex: 1;
  max-width: 280px;
  text-align: center;
  padding: 0 24px;
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 20px rgba(59,130,246,0.35);
}

.step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.step-arrow {
  font-size: 24px;
  color: var(--border);
  padding-top: 12px;
  flex-shrink: 0;
}

/* ── CTA section ── */
.cta-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
}

.cta-logo {
  height: 80px;
  border-radius: 18px;
  box-shadow: 0 8px 32px rgba(59,130,246,0.3);
  margin-bottom: 8px;
}

.cta-inner h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -1px;
}

.cta-inner p {
  font-size: 16px;
  color: var(--text-dim);
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.footer-copy {
  font-size: 13px;
  color: var(--text-faint);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ── Privacy page ── */
.privacy-section {
  padding: 80px 0 100px;
}

.privacy-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 56px;
  max-width: 820px;
  margin: 0 auto;
}

.privacy-card h1 {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.privacy-card .updated {
  font-size: 13px;
  color: var(--text-faint);
  margin-bottom: 32px;
  font-style: italic;
}

.privacy-card h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary-light);
  margin-top: 40px;
  margin-bottom: 12px;
}

.privacy-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-top: 24px;
  margin-bottom: 8px;
}

.privacy-card p {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 12px;
}

.privacy-card ul {
  margin: 0 0 16px 20px;
}

.privacy-card li {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 4px;
}

.privacy-card a {
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 600;
}

.privacy-card a:hover { color: #fff; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero { padding: 64px 0 56px; }

  .hero-inner {
    flex-direction: column-reverse;
    gap: 40px;
    text-align: center;
  }

  .hero-sub { margin: 0 auto 32px; }

  .hero-icon img {
    width: 160px;
    height: 160px;
    border-radius: 36px;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .screenshots-grid {
    gap: 20px;
  }

  .screenshot-item {
    max-width: 200px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }

  .step-arrow { display: none; }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .privacy-card {
    padding: 32px 24px;
  }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }

  .screenshots-grid {
    flex-direction: column;
    align-items: center;
  }

  .screenshot-item { max-width: 280px; }

  nav { gap: 20px; }
}