:root {
  color-scheme: dark;
  --bg: #08080c;
  --panel: rgba(255,255,255,0.06);
  --panel-strong: rgba(255,255,255,0.1);
  --text: #ffffff;
  --muted: rgba(255,255,255,0.64);
  --line: rgba(255,255,255,0.14);
  --accent: #74e0ff;
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 85% 5%, rgba(120, 80, 255, 0.28), transparent 32%),
    radial-gradient(circle at 5% 40%, rgba(0, 210, 255, 0.14), transparent 36%),
    var(--bg);
  color: var(--text);
}

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

.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-weight: 900;
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.brand-name {
  font-weight: 900;
  letter-spacing: 0.04em;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-weight: 700;
}

.nav a:hover {
  color: white;
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 78px 24px 92px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 13px;
  font-weight: 900;
}

h1 {
  font-size: clamp(48px, 8vw, 86px);
  line-height: 0.94;
  letter-spacing: -0.06em;
  margin: 18px 0 24px;
}

.hero-text {
  color: var(--muted);
  font-size: 21px;
  line-height: 1.65;
  max-width: 650px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.button {
  border-radius: 20px;
  padding: 16px 22px;
  font-weight: 900;
  transition: 180ms ease;
}

.primary {
  background: white;
  color: black;
}

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

.secondary {
  background: var(--panel);
  border: 1px solid var(--line);
}

.secondary:hover {
  background: var(--panel-strong);
}

.hero-card {
  border: 1px solid var(--line);
  border-radius: 40px;
  padding: 14px;
  background: var(--panel);
  box-shadow: 0 30px 90px rgba(0,0,0,0.42);
}

.preview {
  min-height: 420px;
  border-radius: 30px;
  padding: 36px;
  display: flex;
  align-items: flex-end;
  background:
    linear-gradient(to top, rgba(0,0,0,0.78), rgba(0,0,0,0.08)),
    linear-gradient(135deg, #6d5dfc, #ff4fd8 48%, #43dfff);
}

.preview p {
  color: rgba(255,255,255,0.68);
  font-weight: 800;
  margin: 0 0 8px;
}

.preview h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1;
}

.preview span {
  display: block;
  margin-top: 10px;
  color: rgba(255,255,255,0.72);
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 82px 24px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 36px;
  align-items: end;
  margin-bottom: 36px;
}

.section-heading h2 {
  margin: 8px 0 0;
  font-size: clamp(38px, 5vw, 58px);
  letter-spacing: -0.04em;
}

.section-heading p {
  max-width: 520px;
  color: var(--muted);
  line-height: 1.7;
}

.wallpaper-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.wallpaper-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}

.wallpaper-image {
  aspect-ratio: 4 / 5;
  border-radius: 22px;
  padding: 18px;
  display: flex;
  align-items: flex-end;
}

.wallpaper-image span {
  background: white;
  color: black;
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 950;
}

.gradient-one {
  background: linear-gradient(135deg, #2411ff, #ff3bde, #00e1ff);
}

.gradient-two {
  background: linear-gradient(135deg, #070712, #614dff, #00c2ff);
}

.gradient-three {
  background: linear-gradient(135deg, #050505, #8129ff, #ffcb3f);
}

.wallpaper-card h3 {
  margin: 18px 6px 4px;
  font-size: 20px;
}

.wallpaper-card p {
  color: var(--muted);
  margin: 0 6px 14px;
}

.download {
  display: block;
  text-align: center;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 13px;
  font-weight: 900;
}

.download:hover {
  background: white;
  color: black;
}

.info-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.info-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

.info-card h3 {
  margin-top: 0;
  font-size: 22px;
}

.info-card p {
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  border-top: 1px solid var(--line);
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 42px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: rgba(255,255,255,0.48);
  font-size: 14px;
}

@media (max-width: 860px) {
  .site-header,
  .section-heading,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 48px;
  }

  .wallpaper-grid,
  .info-section {
    grid-template-columns: 1fr;
  }

  .preview {
    min-height: 320px;
  }
}