:root {
  --navy: #062b41;
  --navy-deep: #031d2c;
  --navy-soft: #0a415c;
  --cyan: #2ed1df;
  --cyan-soft: #dff9fb;
  --paper: #ffffff;
  --mist: #f3f7f8;
  --ink: #0f1720;
  --muted: #53616b;
  --line: #d7e1e5;
  --radius: 18px;
  --container: 1120px;
  --shadow: 0 28px 80px rgba(3, 29, 44, 0.18);
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

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

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -56px;
  left: 16px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--paper);
  color: var(--navy);
  font-weight: 800;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(215, 225, 229, 0.82);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  width: 250px;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 750;
}

.nav-links a:hover,
.nav-links a:focus,
.text-link:hover,
.text-link:focus {
  color: #08788a;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 18px;
  border: 1px solid var(--navy);
  border-radius: 12px;
  background: var(--navy);
  color: var(--paper);
  font-weight: 850;
  line-height: 1.15;
  transition: transform 0.18s ease, background 0.18s ease;
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
  background: var(--navy-soft);
}

.button--ghost {
  background: transparent;
  color: var(--navy);
}

.button--ghost:hover,
.button--ghost:focus {
  background: var(--cyan-soft);
}

.play-mark {
  width: 0;
  height: 0;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 15px solid var(--cyan);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 78px;
  color: var(--paper);
  background:
    radial-gradient(circle at 82% 18%, rgba(46, 209, 223, 0.24), transparent 28%),
    radial-gradient(circle at 12% 90%, rgba(46, 209, 223, 0.12), transparent 32%),
    var(--navy-deep);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 72px;
  align-items: center;
}

.app-identity {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.app-icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.24);
}

.app-name {
  display: block;
  font-size: 1.28rem;
  font-weight: 900;
}

.app-meta {
  color: #a9c5d1;
  font-size: 0.92rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.06;
  font-weight: 900;
}

h1 {
  max-width: 740px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 6.4vw, 5.6rem);
  letter-spacing: -0.055em;
}

.hero-copy {
  max-width: 660px;
  color: #c6d6de;
  font-size: 1.16rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero .button {
  border-color: var(--paper);
  background: var(--paper);
  color: var(--navy);
}

.hero .button:hover,
.hero .button:focus {
  background: var(--cyan-soft);
}

.hero .button--ghost {
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.04);
  color: var(--paper);
}

.hero-visual {
  position: relative;
  min-height: 590px;
  display: grid;
  place-items: center;
}

.phone-frame {
  position: relative;
  z-index: 2;
  width: min(78%, 350px);
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 34px;
  background: #091015;
  box-shadow: 0 42px 90px rgba(0, 0, 0, 0.38);
  transform: rotate(2.5deg);
}

.phone-frame img {
  width: 100%;
  border-radius: 25px;
}

.feature-card {
  position: absolute;
  right: 0;
  bottom: 36px;
  z-index: 3;
  width: min(76%, 340px);
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  background: rgba(3, 29, 44, 0.86);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(14px);
}

.feature-card img {
  width: 100%;
  border-radius: 10px;
}

.trust-strip {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  background: var(--mist);
}

.trust-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  list-style: none;
}

.trust-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  font-weight: 760;
}

.trust-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(46, 209, 223, 0.18);
}

section {
  padding: 82px 0;
}

.section-head {
  max-width: 780px;
  margin-bottom: 38px;
}

.kicker {
  margin-bottom: 10px;
  color: #08788a;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2.25rem, 4vw, 3.7rem);
  letter-spacing: -0.035em;
}

.section-head > p:last-child,
.feature-copy,
.privacy-copy {
  color: var(--muted);
  font-size: 1.04rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature {
  min-height: 230px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.feature-number {
  display: inline-grid;
  width: 38px;
  height: 38px;
  margin-bottom: 34px;
  place-items: center;
  border-radius: 12px;
  background: var(--cyan-soft);
  color: var(--navy);
  font-size: 0.82rem;
  font-weight: 900;
}

.feature h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
}

.gallery-section {
  overflow: hidden;
  background: var(--mist);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.shot {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--paper);
  box-shadow: 0 18px 46px rgba(3, 29, 44, 0.1);
}

.shot img {
  width: 100%;
  height: auto;
}

.privacy-panel {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 42px;
  align-items: center;
  padding: 48px;
  border-radius: 28px;
  color: var(--paper);
  background: var(--navy);
}

.privacy-panel h2 {
  margin-bottom: 0;
}

.privacy-panel .kicker {
  color: var(--cyan);
}

.privacy-copy {
  color: #c6d6de;
}

.privacy-copy p + p {
  margin-top: 14px;
}

.privacy-copy a {
  color: var(--cyan);
  font-weight: 800;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.faq-item {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.faq-item h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
}

.faq-item p {
  color: var(--muted);
}

.download {
  padding-top: 0;
}

.download-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--cyan-soft);
}

.download-box h2 {
  max-width: 650px;
  margin: 0;
}

.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  background: var(--mist);
  color: var(--muted);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  font-weight: 700;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .privacy-panel {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 520px;
  }

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

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

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

@media (max-width: 620px) {
  .brand-logo {
    width: 190px;
  }

  .site-header .button {
    display: none;
  }

  .hero {
    padding-top: 58px;
  }

  h1 {
    font-size: 3rem;
  }

  .hero-visual {
    min-height: 475px;
  }

  .feature-card {
    bottom: 4px;
  }

  .trust-list,
  .feature-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .gallery {
    display: flex;
    width: calc(100vw - 16px);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 6px 24px 24px 0;
  }

  .shot {
    min-width: min(78vw, 300px);
    scroll-snap-align: start;
  }

  .privacy-panel,
  .download-box {
    padding: 30px 24px;
  }

  .download-box,
  .footer-content {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}