:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --brand: #4f46e5;
  --brand-dark: #3730a3;
  --brand-soft: #eef2ff;
  --radius: 14px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --bg-alt: #111833;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #1e293b;
    --brand: #818cf8;
    --brand-dark: #6366f1;
    --brand-soft: #1e1b4b;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: inherit; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}
.logo-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #06b6d4);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-links a:not(.btn) {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}
.nav-links a:not(.btn):hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s ease;
}
.btn:hover { background: var(--brand-dark); }
.btn-small { padding: 8px 16px; font-size: 0.9rem; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-alt); }
.btn-light { background: #fff; color: var(--brand-dark); }
.btn-light:hover { background: #eef2ff; }

/* Hero */
.hero { padding: 96px 0 72px; }
.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 600;
}
h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}
.lead {
  max-width: 640px;
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 32px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.channels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  padding: 0;
  margin: 40px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.section-lead { color: var(--muted); margin: 0 0 40px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}
.card-icon { font-size: 1.6rem; margin-bottom: 12px; }
.card h3, .steps h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p, .steps p { margin: 0; color: var(--muted); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
}
.step-num {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.why {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
}
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.checklist li {
  position: relative;
  padding-left: 32px;
  color: var(--muted);
}
.checklist li strong { color: var(--text); }
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand);
  font-weight: 700;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--brand-dark), #0e7490);
  color: #fff;
  text-align: center;
}
.cta-inner p { color: #e0e7ff; margin: 0 0 28px; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}
.footer a { text-decoration: none; }

@media (max-width: 720px) {
  .hero { padding: 64px 0 48px; }
  .section { padding: 56px 0; }
  .why { grid-template-columns: 1fr; gap: 16px; }
  .nav-links a:not(.btn) { display: none; }
}