:root {
  --bg: #0e0f13;
  --fg: #ffffff;
  --muted: #9aa0a6;
  --accent: #6cf2c2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--bg);
  color: var(--fg);
  overflow: hidden;
}

/* TOPBAR */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 56px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 0 24px;
  z-index: 1000;

  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
}

/* Brand */
.topbar .brand {
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  opacity: 0.8;
}

/* App links */
.topbar .apps {
  display: flex;
  gap: 20px;
}

.topbar .apps a {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;

  opacity: 0.6;
  transition: opacity 0.2s ease;
}

.topbar .apps a:hover {
  opacity: 1;
}

.topbar .brand a {
  opacity: 0.7;
}

.topbar .brand a:hover {
  opacity: 1;
}

.topbar .apps a:first-child {
  opacity: 0.75;
}

/* SCROLL SNAP CONTAINER */

.snap-container {
  height: 100vh;
  padding-top: 56px;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
}

/* SECTIONS */

.snap {
  scroll-snap-align: start;
  scroll-snap-stop: always;
  min-height: 100vh;

  padding: 4rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

/* HERO */

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 1rem;
}

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

.subclaim {
  font-size: 1.25rem;
  color: var(--accent);
  min-height: 1.6em;
  margin-bottom: 1.5rem;
  transition: opacity 0.3s ease;
}

.description {
  color: var(--muted);
  margin-bottom: 2.5rem;
}

/* BUTTONS */

.cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
}

.btn.primary {
  background: var(--accent);
  color: #000;
}

.btn.secondary {
  border: 1px solid var(--muted);
  color: var(--fg);
}

/* SECTIONS */

.section h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

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

/* FEATURES */

.features {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  max-width: 520px;
  text-align: left;
}

.features li {
  padding: 0.5rem 0;
}

/* FINAL */

.final h2 {
  margin-bottom: 2rem;
}

/* ACCESSIBILITY */

@media (prefers-reduced-motion: reduce) {
  .snap-container {
    scroll-snap-type: none;
  }
}