:root {
  --bg: #0b0c10;
  --card: #11131a;
  --text: #e8e8ea;
  --muted: #a9abb3;
  --border: #222533;
  --accent: #6ee7ff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial; background: var(--bg); color: var(--text); }

a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.9; }

.container { width: min(1100px, 92vw); margin: 0 auto; }

.header { position: sticky; top: 0; background: rgba(11,12,16,0.8); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); z-index: 10; }
.header__inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.logo { font-weight: 700; letter-spacing: 0.3px; }
.nav { display: flex; gap: 18px; align-items: center; }
.btn { padding: 10px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.btn:hover { border-color: var(--accent); }

.footer { border-top: 1px solid var(--border); margin-top: 60px; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; color: var(--muted); }
.footer__links { display: flex; gap: 14px; }

.hero { padding: 72px 0 28px; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.05; margin: 0 0 12px; }
.hero p { color: var(--muted); font-size: 18px; margin: 0 0 18px; max-width: 60ch; }
.hero__cta { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.btn-primary { padding: 12px 16px; border-radius: 12px; background: var(--accent); color: #061016; font-weight: 700; border: none; }
.btn-secondary { padding: 12px 16px; border-radius: 12px; border: 1px solid var(--border); background: transparent; }

.section { padding: 28px 0; }
.section h2 { margin: 0 0 14px; font-size: 24px; }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 16px; }
.muted { color: var(--muted); }

@media (max-width: 720px) {
  .nav { display: none; }
  .footer__inner { flex-direction: column; gap: 10px; align-items: flex-start; }
}