:root {
  --bg: #0b1220;
  --panel: #111827;
  --panel-soft: #0f1a2c;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --line: #223043;
  --primary: #22c55e;
  --accent: #f59e0b;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--text);
  background: radial-gradient(circle at 15% 5%, rgba(34, 197, 94, 0.16), transparent 40%),
    radial-gradient(circle at 88% 92%, rgba(245, 158, 11, 0.18), transparent 42%), var(--bg);
  font-family: "Space Grotesk", "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.site {
  max-width: 1160px;
  margin: 0 auto;
  padding: 22px 18px 52px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(12, 18, 32, 0.78);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  position: sticky;
  top: 14px;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand img {
  width: 30px;
  height: 30px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--muted);
  transition: 180ms ease;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.hero {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  padding: 34px 28px;
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.94), rgba(12, 18, 32, 0.9));
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -180px;
  top: -180px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.3), transparent 70%);
  pointer-events: none;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #a7f3d0;
  border: 1px solid rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.12);
  border-radius: 999px;
  padding: 7px 12px;
}

.title {
  margin: 14px 0 8px;
  font-size: clamp(32px, 5.5vw, 58px);
  line-height: 1.04;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 760px;
  font-size: clamp(16px, 2vw, 20px);
}

.cta-row {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 11px 16px;
  font-weight: 600;
  border: 1px solid var(--line);
  transition: 180ms ease;
}

.btn.primary {
  background: linear-gradient(120deg, var(--primary), #16a34a);
  color: #04130a;
  border-color: transparent;
}

.btn.primary:hover {
  filter: brightness(1.06);
}

.btn.ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card {
  border: 1px solid var(--line);
  background: rgba(17, 24, 39, 0.76);
  border-radius: var(--radius);
  padding: 16px 15px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 15px;
  color: #d1fae5;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.section {
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: rgba(15, 26, 44, 0.76);
}

.section h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.step {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(9, 15, 25, 0.9);
  padding: 12px;
}

.step b {
  display: inline-block;
  margin-bottom: 8px;
  color: #86efac;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.footer {
  margin-top: 30px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.reveal {
  opacity: 0;
  transform: translateY(10px);
  animation: reveal 520ms ease forwards;
}

.reveal.d2 {
  animation-delay: 120ms;
}

.reveal.d3 {
  animation-delay: 220ms;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }

  .flow {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .site {
    padding: 16px 12px 38px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    width: 100%;
    flex-wrap: wrap;
  }

  .grid,
  .flow {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 24px 16px;
  }
}