:root {
  --bg: #0a0a0b;
  --panel: #141416;
  --panel2: #1b1b1f;
  --border: #2a2a30;
  --fg: #f5f5f7;
  --muted: #a1a1aa;
  --brand: #6366f1;
  --brand2: #a855f7;
  --max: 1040px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: var(--max); margin: 0 auto;
  backdrop-filter: blur(8px);
}
.nav nav { display: flex; gap: 22px; align-items: center; }
.nav nav a { color: var(--muted); font-size: 15px; }
.nav nav a:hover { color: var(--fg); }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 19px; letter-spacing: -.01em; }
.logo { width: 27px; height: 27px; flex-shrink: 0; }

.btn {
  display: inline-block; border-radius: 12px; font-weight: 600;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: #fff; padding: 12px 22px; transition: transform .12s ease, opacity .12s ease;
}
.btn:hover { transform: translateY(-1px); opacity: .94; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 16px 30px; font-size: 18px; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--fg); }

main { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

.hero { text-align: center; padding: 72px 0 40px; }
.hero h1 { font-size: clamp(34px, 6vw, 60px); line-height: 1.05; letter-spacing: -.02em; }
.grad { background: linear-gradient(120deg, var(--brand), var(--brand2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: clamp(16px, 2.4vw, 20px); max-width: 720px; margin: 22px auto 0; }
.lead.center { text-align: center; }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.sub { color: var(--muted); font-size: 14px; margin-top: 16px; }
.shot {
  width: 100%; max-width: 1000px; height: auto; margin-top: 48px;
  border: 1px solid var(--border); border-radius: 16px;
  box-shadow: 0 30px 80px -20px rgba(99,102,241,.25);
}

.section { padding: 64px 0; }
.section.alt { text-align: center; }
.section h2 { font-size: clamp(26px, 4vw, 38px); text-align: center; letter-spacing: -.01em; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; margin-top: 40px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }

.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 36px; }
.chips li { background: var(--panel2); border: 1px solid var(--border); border-radius: 999px; padding: 10px 18px; color: var(--muted); font-weight: 500; }

details { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px 22px; margin: 14px auto 0; max-width: 760px; }
details summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin-top: 12px; }

.cta-band { text-align: center; }
.cta-band .btn { margin-top: 24px; }

footer { border-top: 1px solid var(--border); margin-top: 40px; padding: 40px 24px; text-align: center; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }
footer a:hover { color: var(--fg); }
.fine { max-width: 680px; margin: 14px auto 0; font-size: 12.5px; opacity: .8; }

.langs { display: inline-flex; gap: 10px; align-items: center; margin-left: 6px; }
.langs a { color: var(--muted); font-size: 14px; }
.langs a:hover { color: var(--fg); }
.langs a.active { color: var(--fg); font-weight: 700; }

@media (max-width: 640px) {
  .nav nav { gap: 12px; }
  .nav nav > a:not(.btn) { display: none; }
}