:root {
  color-scheme: light;
  --bg-top: #9ecca3;
  --bg-bottom: #81b3d7;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --panel-border: rgba(26, 57, 84, 0.12);
  --headline: #16344d;
  --text: #314656;
  --muted: #627687;
  --accent: #1e5b7b;
  --accent-dark: #143b51;
  --accent-soft: #e2f1f7;
  --shadow: 0 24px 70px rgba(17, 44, 63, 0.12);
  --shadow-soft: 0 16px 40px rgba(17, 44, 63, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Arial Nova", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 14%, rgba(255, 255, 255, 0.48), transparent 24%),
    radial-gradient(circle at 88% 16%, rgba(255, 255, 255, 0.42), transparent 20%),
    linear-gradient(135deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

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

.page-shell {
  min-height: 100vh;
  padding: 24px 20px 72px;
}

.hero,
.main-grid {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.hero,
.content-card {
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero {
  padding: 24px 28px 30px;
  margin-bottom: 24px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-bottom: 28px;
}

.brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.link-card:hover,
.link-card:focus-visible,
.store-link:hover,
.store-link:focus-visible,
.back-link:hover,
.back-link:focus-visible {
  transform: translateY(-2px);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.8);
  color: var(--accent-dark);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 24px;
  align-items: stretch;
}

.eyebrow,
.section-tag,
.panel-label {
  display: inline-block;
  margin: 0 0 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--headline);
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 0.96;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 14px;
}

h3 {
  font-size: 1.08rem;
  margin-bottom: 10px;
}

p,
li {
  font-size: 1rem;
  line-height: 1.75;
}

p {
  margin: 0;
}

.intro,
.updated,
.gallery-copy {
  max-width: 760px;
}

.intro {
  margin: 18px 0 12px;
  font-size: 1.08rem;
}

.updated,
.shot-label {
  color: var(--muted);
}

.title-row {
  display: flex;
  align-items: center;
  gap: 20px;
}

.app-logo {
  width: 104px;
  height: 104px;
  border-radius: 28px;
  object-fit: cover;
  box-shadow: var(--shadow-soft);
  background: rgba(255, 255, 255, 0.88);
}

.back-link-wrap {
  margin: 10px 0 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(20, 59, 81, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--accent-dark);
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 180ms ease, background-color 180ms ease;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.store-link {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  transition: transform 180ms ease, filter 180ms ease;
}

.store-link:hover,
.store-link:focus-visible {
  filter: brightness(1.03);
}

.store-link img {
  display: block;
  width: min(220px, 100%);
  height: auto;
}

.hero-panel {
  padding: 22px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(226, 241, 247, 0.9), rgba(255, 255, 255, 0.92));
  border: 1px solid rgba(30, 91, 123, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.intro-visual {
  display: block;
  width: 100%;
  margin-bottom: 18px;
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
}

.feature-list {
  margin: 0;
  padding-left: 20px;
}

.feature-list li + li {
  margin-top: 10px;
}

.main-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
}

.main-grid > section {
  grid-column: span 6;
  padding: 26px 28px;
}

.main-grid > .section-large {
  grid-column: span 12;
}

.cards,
.info-grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mini-card,
.info-block,
.link-card {
  padding: 18px 18px 20px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px solid rgba(26, 57, 84, 0.08);
  box-shadow: var(--shadow-soft);
}

.screenshot-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(220px, 260px);
  gap: 18px;
  margin-top: 22px;
  padding-bottom: 10px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
}

.screenshot-strip::-webkit-scrollbar {
  height: 10px;
}

.screenshot-strip::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(30, 91, 123, 0.28);
}

.screenshot-card {
  scroll-snap-align: start;
}

.phone-shot {
  display: block;
  width: 100%;
  border-radius: 30px;
  background: #dfe8f2;
  box-shadow: var(--shadow-soft);
  border: 8px solid rgba(255, 255, 255, 0.72);
}

.shot-label {
  margin-top: 12px;
  font-size: 0.92rem;
  text-align: center;
}

.link-stack {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.link-card {
  display: block;
  color: var(--accent-dark);
  font-weight: 700;
  transition: transform 180ms ease, background-color 180ms ease;
}

.link-card:hover,
.link-card:focus-visible {
  background: rgba(226, 241, 247, 0.9);
}

@media (max-width: 980px) {
  .hero-grid,
  .cards,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .main-grid > section {
    grid-column: span 12;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 16px 14px 40px;
  }

  .hero {
    padding: 18px 18px 22px;
  }

  .topbar,
  .title-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar {
    padding-bottom: 22px;
  }

  .main-grid > section {
    padding: 20px;
  }

  p,
  li {
    line-height: 1.65;
  }
}