:root {
  --bg: #0b0f14;
  --bg-alt: #0f151c;
  --surface: #131a22;
  --surface-border: #1f2933;
  --text: #f5f7fa;
  --text-muted: #9aa5b1;
  --accent: #5eead4;
  --accent-contrast: #0b0f14;
  --max-width: 1080px;
  --radius: 12px;
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

a {
  color: var(--accent);
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h2 {
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: 1.5em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--surface-border);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.brand img {
  border-radius: 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-contrast);
  text-decoration: none;
  font-weight: 600;
  transition: transform var(--transition), opacity var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

.btn svg {
  width: 26px;
  height: 26px;
}

.btn span {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  font-size: 1.05rem;
  text-align: left;
}

.btn small {
  font-size: 0.7rem;
  font-weight: 500;
}

.btn--small {
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
}

/* Hero */
.hero {
  text-align: center;
  padding: 5rem 1.25rem 4rem;
}

.hero__icon {
  margin: 0 auto 1.5rem;
  border-radius: 26px;
  box-shadow: 0 12px 40px rgba(94, 234, 212, 0.2);
}

.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.5rem);
}

.hero__tagline {
  max-width: 560px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
  font-size: 1.15rem;
}

.stores {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  scroll-margin-top: 90px;
}

/* Screenshots */
.shots {
  background: var(--bg-alt);
  padding: 4rem 0;
}

.shots__grid {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 1rem;
  justify-content: safe center;
}

.shots__grid img {
  flex: 0 0 auto;
  width: 240px;
  aspect-ratio: 390 / 844;
  object-fit: cover;
  border-radius: 28px;
  border: 1px solid var(--surface-border);
  scroll-snap-align: center;
}

/* Features */
.features {
  padding: 4rem 1.25rem;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.card h3 {
  color: var(--accent);
}

.card p {
  margin: 0;
  color: var(--text-muted);
}

/* Footer */
.footer {
  border-top: 1px solid var(--surface-border);
  padding: 2rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}