:root {
  --bg: #070a0f;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-2: rgba(255, 255, 255, 0.06);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.62);
  --faint: rgba(255, 255, 255, 0.12);
  --accent: #7cdbff;
  --accent-2: #a78bfa;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 600px at 20% 10%, rgba(124, 219, 255, 0.10), transparent 60%),
              radial-gradient(900px 500px at 80% 20%, rgba(167, 139, 250, 0.10), transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
}

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

.top {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  backdrop-filter: blur(14px);
  background: rgba(7, 10, 15, 0.6);
  border-bottom: 1px solid var(--faint);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

nav a {
  margin-left: 14px;
  color: var(--muted);
  transition: 0.2s ease;
}

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

.hero {
  text-align: center;
  padding: 90px 20px 50px;
  max-width: 850px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 48px;
  margin: 0 0 14px;
  letter-spacing: -1px;
}

.hero p {
  color: var(--muted);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

.cta {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 12px;
}

.btn {
  padding: 10px 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061018;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(124, 219, 255, 0.12);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(124, 219, 255, 0.18);
}

.btn.secondary {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--faint);
  box-shadow: none;
}

.btn.secondary:hover {
  border-color: rgba(124, 219, 255, 0.5);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 40px 28px;
  max-width: 1000px;
  margin: 0 auto;
}

.card {
  background: var(--panel);
  border: 1px solid var(--faint);
  border-radius: 16px;
  padding: 18px;
  backdrop-filter: blur(10px);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(124, 219, 255, 0.25);
}

.card h3 {
  margin: 0 0 6px;
}

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

#gestures,
.install {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 28px;
}

h2 {
  font-size: 26px;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.table {
  border: 1px solid var(--faint);
  border-radius: 14px;
  overflow: hidden;
  background: var(--panel);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 12px 16px;
  border-top: 1px solid var(--faint);
}

.row.head {
  background: var(--panel-2);
  border-top: none;
  font-weight: 600;
}

.row div {
  color: var(--muted);
}

.row.head div {
  color: var(--text);
}

pre {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--faint);
  padding: 14px;
  border-radius: 14px;
  overflow-x: auto;
  color: var(--text);
}

.note {
  color: var(--muted);
  margin-top: 10px;
}

footer {
  margin-top: 60px;
  padding: 20px;
  border-top: 1px solid var(--faint);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

@media (max-width: 600px) {
  .top {
    flex-direction: column;
    gap: 12px;
    align-items: center;
    text-align: center;
  }

  .brand {
    justify-content: center;
  }

  nav {
    width: 100%;
    display: flex;
    justify-content: space-evenly;
  }

  nav a {
    margin-left: 0;
    font-size: 14px;
  }
}