:root {
  --bg: #0b0f1a;
  --bg-soft: #111726;
  --card: #151c2e;
  --border: #232c42;
  --text: #e8ecf6;
  --muted: #9aa6c2;
  --brand: #6366f1;
  --brand-2: #22d3ee;
  --radius: 16px;
  --container: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 26, 0.72);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  font-weight: 800;
}
.brand-name { font-size: 1.1rem; letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: 0.95rem; transition: color 0.15s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  color: var(--text) !important;
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 10px;
}
.nav-cta:hover { border-color: var(--brand); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 12px;
  transition: transform 0.12s ease, background 0.15s, border-color 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), #8b5cf6);
  color: #fff;
  box-shadow: 0 8px 30px -10px var(--brand);
}
.btn-primary:hover { filter: brightness(1.07); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--brand); }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

/* Hero */
.hero { padding: 96px 24px 72px; text-align: center; }
.eyebrow {
  display: inline-block;
  color: var(--brand-2);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 auto 22px;
  max-width: 18ch;
  background: linear-gradient(180deg, #fff, #c4cce0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 60ch;
  margin: 0 auto 34px;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 64px auto 0;
  padding-top: 36px;
  border-top: 1px solid var(--border);
  max-width: 760px;
}
.stats div { text-align: center; }
.stats dt { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.01em; }
.stats dd { margin: 4px 0 0; color: var(--muted); font-size: 0.9rem; }

/* Sections */
.section { padding: 84px 24px; }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); letter-spacing: -0.02em; margin: 0 0 12px; }
.section-head p { color: var(--muted); margin: 0; font-size: 1.05rem; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.15s ease, border-color 0.15s;
}
.card:hover { transform: translateY(-4px); border-color: var(--brand); }
.card-icon { font-size: 1.8rem; margin-bottom: 12px; }
.card h3 { margin: 0 0 8px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--muted); }

/* Steps */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.steps li {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.step-num {
  display: inline-block;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--brand-2);
  margin-bottom: 10px;
}
.steps h3 { margin: 0 0 8px; font-size: 1.1rem; }
.steps p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* About */
.about {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.about h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); letter-spacing: -0.02em; margin: 0 0 18px; }
.about-copy p { color: var(--muted); margin: 0 0 16px; }
.about-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.about-list li {
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--muted);
}
.about-list strong { color: var(--text); }

/* CTA */
.cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(34,211,238,0.08));
  border: 1px solid var(--border);
  border-radius: 24px;
  margin-bottom: 84px;
}
.cta h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); letter-spacing: -0.02em; margin: 0 0 12px; }
.cta p { color: var(--muted); margin: 0 0 28px; font-size: 1.1rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-meta { color: var(--muted); font-size: 0.9rem; margin: 0; }

/* Responsive */
@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .nav-links { gap: 16px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .steps { grid-template-columns: 1fr; }
  .stats { gap: 28px; }
  .hero { padding-top: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}