:root {
  color-scheme: dark;
  --bg: #030712;
  --bg-2: #091128;
  --surface: rgba(255, 255, 255, 0.08);
  --surface-strong: rgba(255, 255, 255, 0.14);
  --line: rgba(165, 232, 255, 0.24);
  --text: #f6fbff;
  --muted: rgba(234, 247, 255, 0.68);
  --soft: rgba(234, 247, 255, 0.48);
  --cyan: #62e6ff;
  --teal: #0ea7c3;
  --gold: #e3b04b;
  --radius: 28px;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 74% 13%, rgba(98, 230, 255, 0.24), transparent 30%),
    radial-gradient(ellipse at 17% 32%, rgba(227, 176, 75, 0.15), transparent 26%),
    linear-gradient(180deg, #0b1531, var(--bg) 48%, #02050d);
  color: var(--text);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 76%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 28px;
  backdrop-filter: blur(22px);
  background: linear-gradient(180deg, rgba(5, 11, 25, 0.76), rgba(5, 11, 25, 0.18));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 750;
  letter-spacing: 0;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 10px 28px rgba(98, 230, 255, 0.18);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.site-nav a {
  transition: color 180ms ease;
}

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

.section {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 128px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(380px, 0.82fr);
  align-items: center;
  gap: 56px;
  padding: 28px 0 58px;
}

.hero h1,
.intro-panel h2,
.section-copy h2,
.privacy-card h2 {
  margin: 0;
  font-size: clamp(46px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 760;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #03111a;
  background: linear-gradient(135deg, #fff3b8, #65e9ff 38%, #37d3f4);
  box-shadow: 0 18px 44px rgba(55, 211, 244, 0.22);
}

.button.secondary {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.hero-visual {
  position: relative;
  min-height: min(72vh, 640px);
  display: grid;
  place-items: center;
  isolation: isolate;
}

.screenshot-halo {
  position: absolute;
  inset: 8% 0 0 3%;
  z-index: -1;
  border-radius: 999px;
  background:
    radial-gradient(circle at 48% 32%, rgba(98, 230, 255, 0.42), transparent 32%),
    radial-gradient(circle at 72% 78%, rgba(227, 176, 75, 0.26), transparent 28%);
  filter: blur(26px);
  opacity: 0.72;
}

.phone-frame {
  height: clamp(500px, 72vh, 700px);
  aspect-ratio: 1206 / 2622;
  padding: 10px;
  border-radius: 44px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.04) 28%),
    linear-gradient(180deg, rgba(17, 29, 61, 0.98), rgba(3, 7, 18, 0.98));
  box-shadow:
    var(--shadow),
    0 0 0 1px rgba(255, 255, 255, 0.12),
    0 0 66px rgba(98, 230, 255, 0.18);
  transform: rotate(3.5deg);
  overflow: hidden;
}

.phone-frame img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 34px;
  object-fit: cover;
}

.intro-panel {
  padding: 0 0 40px;
  text-align: center;
}

.section-label {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.intro-panel h2,
.section-copy h2,
.privacy-card h2 {
  font-size: clamp(36px, 4.6vw, 62px);
}

.intro-panel p,
.section-copy p,
.privacy-card > p {
  max-width: 740px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 44px 0 116px;
}

.feature,
.help-list,
.privacy-card {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.045)),
    linear-gradient(135deg, rgba(98, 230, 255, 0.08), transparent 46%);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.24);
}

.feature {
  min-height: 238px;
  padding: 28px;
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}

.feature::after {
  content: "";
  position: absolute;
  inset: auto 24px 0 24px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  opacity: 0.55;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  color: #05121c;
  background: linear-gradient(135deg, var(--cyan), var(--gold));
  font-size: 24px;
  font-weight: 800;
}

.feature h3,
.policy-grid h3 {
  margin: 24px 0 10px;
  font-size: 22px;
  letter-spacing: 0;
}

.feature p,
.policy-grid p,
details p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.split-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
  padding: 104px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-copy p {
  margin-left: 0;
}

.help-list {
  border-radius: var(--radius);
  overflow: hidden;
}

details {
  padding: 24px 26px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

details:last-child {
  border-bottom: 0;
}

summary {
  cursor: pointer;
  list-style: none;
  font-size: 18px;
  font-weight: 780;
}

summary::-webkit-details-marker {
  display: none;
}

details p {
  padding-top: 14px;
}

.privacy-section {
  padding: 96px 0;
}

.privacy-card {
  padding: clamp(28px, 5vw, 64px);
  border-radius: 36px;
  position: relative;
  overflow: hidden;
}

.privacy-card > p {
  margin-left: 0;
}

.privacy-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(98, 230, 255, 0.1), transparent 28%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  mask-image: linear-gradient(to bottom right, black, transparent 72%);
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 34px;
  margin-top: 38px;
}

.policy-grid h3 {
  margin-top: 0;
  font-size: 18px;
}

.updated {
  margin-top: 36px;
  color: var(--soft);
  font-size: 14px;
}

.site-footer {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 34px 0 46px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--soft);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 100ms;
}

.delay-2 {
  transition-delay: 200ms;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .button {
    transition: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    padding: 14px 20px;
  }

  .site-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 34px;
    gap: 28px;
  }

  .hero-visual {
    min-height: auto;
    padding: 18px 0 10px;
  }

  .phone-frame {
    height: auto;
    width: min(78vw, 360px);
    transform: rotate(1.8deg);
  }

  .feature-grid,
  .split-section,
  .policy-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    padding-bottom: 72px;
  }

  .split-section,
  .privacy-section {
    padding: 72px 0;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .section,
  .site-footer {
    width: min(100vw - 28px, 1180px);
  }

  .hero h1 {
    font-size: 36px;
    line-height: 1.06;
  }

  .hero {
    gap: 18px;
    padding-bottom: 0;
  }

  .hero p {
    margin-top: 22px;
    font-size: 16px;
  }

  .phone-frame {
    width: min(68vw, 250px);
    padding: 7px;
    border-radius: 34px;
  }

  .phone-frame img {
    border-radius: 27px;
  }

  .hero-actions {
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    max-height: 278px;
    padding-top: 0;
    overflow: hidden;
  }

  .intro-panel {
    padding-top: 0;
  }
}