* {
  box-sizing: border-box;
}

:root {
  --bg: #f5f8ff;
  --dark: #061226;
  --darker: #020817;
  --blue: #2f80ff;
  --blue-2: #66b7ff;
  --text: #111827;
  --muted: #64748b;
  --card: #ffffff;
  --border: rgba(15, 23, 42, 0.10);
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
}

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
}

.brand,
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  font-size: 24px;
}

.brand img,
.footer-brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.22);
}

nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-weight: 700;
  font-size: 14px;
}

nav a,
.footer-links a {
  text-decoration: none;
  opacity: 0.88;
}

nav a:hover,
.footer-links a:hover {
  opacity: 1;
}

.header-button {
  text-decoration: none;
  background: linear-gradient(135deg, #2f80ff, #1762ff);
  color: white;
  padding: 13px 18px;
  border-radius: 12px;
  font-weight: 800;
  box-shadow: 0 12px 30px rgba(47, 128, 255, 0.35);
}

.hero {
  min-height: 760px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 48%, rgba(47, 128, 255, 0.46), transparent 28%),
    radial-gradient(circle at 58% 68%, rgba(3, 169, 244, 0.28), transparent 32%),
    linear-gradient(135deg, var(--darker), #061a3a 55%, #041226);
  color: white;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.hero::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -120px;
  height: 260px;
  background: white;
  filter: blur(80px);
  opacity: 0.16;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1180px;
  margin: 0 auto;
  padding: 150px 28px 100px;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  align-items: center;
  gap: 48px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--blue-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 900;
}

h1 {
  margin: 0;
  font-size: clamp(56px, 8vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

h1 span {
  color: var(--blue);
}

.hero-description {
  max-width: 520px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 20px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 38px;
  flex-wrap: wrap;
}

.app-store-button,
.secondary-button {
  min-height: 62px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 16px;
  font-weight: 900;
}

.app-store-button {
  gap: 12px;
  padding: 12px 24px;
  background: linear-gradient(135deg, #2f80ff, #1762ff);
  color: white;
  box-shadow: 0 16px 40px rgba(47, 128, 255, 0.42);
}

.app-store-button small {
  display: block;
  font-size: 12px;
  line-height: 1;
  opacity: 0.9;
}

.apple {
  font-size: 0;
  width: 24px;
  height: 28px;
  border-radius: 50% 50% 45% 45%;
  background: white;
  position: relative;
}

.secondary-button {
  padding: 0 28px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
}

.hero-visual {
  display: grid;
  place-items: center;
}

.icon-card {
  width: min(460px, 90vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 56px;
  background: linear-gradient(145deg, #ffffff, #e7f1ff);
  box-shadow:
    0 34px 80px rgba(0, 0, 0, 0.38),
    0 0 70px rgba(47, 128, 255, 0.42);
  transform: rotate(2deg);
}

.icon-card img {
  width: 88%;
  height: 88%;
  object-fit: contain;
  border-radius: 40px;
}

.trust-pill {
  margin-top: -20px;
  padding: 12px 22px;
  border-radius: 999px;
  display: flex;
  gap: 16px;
  align-items: center;
  color: #dbeafe;
  background: rgba(4, 18, 38, 0.62);
  border: 1px solid rgba(147, 197, 253, 0.25);
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.22);
  font-weight: 800;
}

.trust-pill span + span::before {
  content: "•";
  margin-right: 16px;
  opacity: 0.65;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 78px 28px 40px;
  text-align: center;
}

.section h2,
.how-section h2,
.privacy-section h2 {
  margin: 0 auto 34px;
  max-width: 720px;
  font-size: clamp(34px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 26px;
  text-align: left;
}

.feature-card {
  padding: 28px;
  min-height: 210px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--border);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

.feature-icon,
.step-circle {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 18px;
  color: white;
  background: linear-gradient(135deg, #66b7ff, #1762ff);
  font-weight: 900;
  box-shadow: 0 14px 28px rgba(47, 128, 255, 0.35);
}

.feature-card h3 {
  margin: 22px 0 10px;
  font-size: 20px;
}

.feature-card p,
.step p,
.privacy-section p {
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

.how-section {
  max-width: 1180px;
  margin: 42px auto 0;
  padding: 52px 48px;
  text-align: center;
  border-radius: 34px;
  background:
    radial-gradient(circle at 93% 0%, rgba(102, 183, 255, 0.2), transparent 28%),
    linear-gradient(135deg, #eef7ff, #ffffff);
  border: 1px solid var(--border);
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.08);
}

.steps {
  display: grid;
  grid-template-columns: 1fr 70px 1fr 70px 1fr;
  gap: 18px;
  align-items: center;
  text-align: left;
}

.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 18px;
  align-items: center;
}

.step h3 {
  margin: 0 0 8px;
}

.step-line {
  height: 4px;
  border-radius: 999px;
  background: repeating-linear-gradient(90deg, #2f80ff 0 8px, transparent 8px 18px);
  opacity: 0.65;
}

.privacy-section {
  max-width: 1180px;
  margin: 54px auto 0;
  padding: 58px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  align-items: center;
  color: white;
  border-radius: 34px;
  background:
    radial-gradient(circle at 70% 45%, rgba(47, 128, 255, 0.26), transparent 24%),
    linear-gradient(135deg, var(--darker), #061a3a);
  box-shadow: var(--shadow);
}

.privacy-section h2 {
  margin-left: 0;
  margin-bottom: 18px;
}

.privacy-section p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 590px;
}

.privacy-section a {
  display: inline-block;
  margin-top: 28px;
  color: #66b7ff;
  font-weight: 900;
  text-decoration: none;
}

.privacy-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.privacy-list li {
  padding-left: 34px;
  position: relative;
  font-weight: 800;
}

.privacy-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #66b7ff;
}

footer {
  margin-top: 48px;
  padding: 26px 28px;
  background: #020817;
  color: white;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 22px;
}

.footer-brand {
  font-size: 22px;
}

.footer-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
}

footer p {
  justify-self: end;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 900px) {
  .site-header {
    position: relative;
    background: #020817;
  }

  nav {
    display: none;
  }

  .hero-content {
    grid-template-columns: 1fr;
    padding-top: 64px;
    text-align: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .step-line {
    display: none;
  }

  .privacy-section {
    grid-template-columns: 1fr;
  }

  footer {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand,
  footer p {
    justify-self: center;
  }

  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
  }
}

@media (max-width: 560px) {
  .header-button {
    display: none;
  }

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

  .how-section,
  .privacy-section {
    margin-left: 18px;
    margin-right: 18px;
    padding: 34px 24px;
  }

  .step {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }

  .trust-pill {
    flex-direction: column;
    gap: 6px;
  }

  .trust-pill span + span::before {
    content: "";
    margin: 0;
  }
}