:root {
  color-scheme: light;
  --bg: #0b0b0e;
  --card: #14141a;
  --text: #f4f4f5;
  --muted: #b3b3bd;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #7c3aed;
  --accent2: #22c55e;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 10% 0%, rgba(124, 58, 237, 0.35), transparent 55%),
    radial-gradient(900px 500px at 90% 20%, rgba(34, 197, 94, 0.25), transparent 60%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

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

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11, 11, 14, 0.6);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.9), rgba(34, 197, 94, 0.75));
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.25);
}
.nav {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a { color: var(--muted); font-size: 0.95rem; }
.nav a[aria-current="page"] { color: var(--text); font-weight: 650; }

.hero {
  padding: 3.5rem 0 1.5rem;
}
.kicker {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
}
.kicker-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent2);
  box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.12);
}
h1 {
  margin: 1rem 0 0.6rem;
  font-size: clamp(2.0rem, 3.6vw, 3.15rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.lead {
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 66ch;
}

.cta-row {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.05rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.9), rgba(124, 58, 237, 0.6));
  border-color: rgba(124, 58, 237, 0.55);
  box-shadow: 0 18px 40px rgba(124, 58, 237, 0.25);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin: 1.6rem 0 3rem;
}
.card {
  grid-column: span 12;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(20, 20, 26, 0.75);
  padding: 1.15rem 1.15rem;
}
.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
}
.card p { margin: 0.35rem 0; color: var(--muted); }
.card ul { margin: 0.6rem 0 0; padding-left: 1.1rem; color: var(--muted); }

@media (min-width: 900px) {
  .card.span-4 { grid-column: span 4; }
  .card.span-6 { grid-column: span 6; }
  .card.span-8 { grid-column: span 8; }
}

.faq details {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.85rem 0.95rem;
  background: rgba(255, 255, 255, 0.04);
}
.faq details + details { margin-top: 0.75rem; }
.faq summary { cursor: pointer; font-weight: 650; }
.faq p { margin: 0.6rem 0 0; color: var(--muted); }

footer {
  border-top: 1px solid var(--border);
  padding: 1.8rem 0;
  color: var(--muted);
}
.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}
.small { font-size: 0.92rem; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}