:root {
  --bg: #0c0c10;
  --bg-deep: #1c1c22;
  --text: #f4f4f8;
  --muted: #9ca0ad;
  --accent: #38bdf8;
  --accent-deep: #0ea5e9;
  --accent-on: #0f172a;
  --glow: rgba(56, 189, 248, 0.18);
  --font: "Outfit", system-ui, sans-serif;
  --display: "Syne", "Outfit", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

body {
  position: relative;
  overflow-x: hidden;
}

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

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 55% at 70% 10%, var(--glow), transparent 55%),
    radial-gradient(ellipse 60% 40% at 10% 80%, rgba(14, 165, 233, 0.12), transparent 50%),
    linear-gradient(180deg, #0c0c10 0%, #121218 45%, #1c1c22 100%);
  animation: drift 14s ease-in-out infinite alternate;
}

@keyframes drift {
  from {
    transform: scale(1) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.04) translate3d(-1.5%, 1%, 0);
  }
}

.top,
main,
.foot {
  position: relative;
  z-index: 1;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem clamp(1.25rem, 4vw, 3rem);
}

.wordmark {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--muted);
}

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

.hero {
  min-height: min(88vh, 920px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(2rem, 8vh, 5rem) clamp(1.25rem, 4vw, 3rem) clamp(3rem, 10vh, 6rem);
  max-width: 56rem;
}

.brand-lockup {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.8rem, 9vw, 5.5rem);
  letter-spacing: -0.045em;
  line-height: 0.95;
  animation: rise 0.8s ease-out both;
}

.brand-lockup span {
  background: linear-gradient(110deg, #7dd3fc, #38bdf8 45%, #0ea5e9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  margin: 0;
  max-width: 18ch;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  animation: rise 0.9s ease-out 0.08s both;
}

.lead {
  margin: 1.1rem 0 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  line-height: 1.55;
  animation: rise 1s ease-out 0.14s both;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
  animation: rise 1.05s ease-out 0.2s both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: var(--accent-on);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.panel {
  margin: 0 clamp(1.25rem, 4vw, 3rem) 4rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: 1.5rem;
  background: rgba(42, 42, 51, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
}

.panel h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}

.lead-sm {
  margin: 0.6rem 0 0;
  color: var(--muted);
  max-width: 40rem;
}

.features {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.features li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.features strong {
  font-size: 1.05rem;
}

.features span {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.foot {
  padding: 2rem clamp(1.25rem, 4vw, 3rem) 3rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.foot a:hover {
  color: var(--accent);
}

.legal {
  margin-top: 0.5rem;
}

@media (max-width: 640px) {
  .nav a:first-child {
    display: none;
  }
}