:root {
  --bg: #0b0f15;
  --card: #101621;
  --text: #e6edf3;
  --muted: #9aa7b2;
  --accent: #7acfff;
  --accent-strong: #4bb8ff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Apple Color Emoji, Segoe UI Emoji;
  background: radial-gradient(1000px 600px at 80% -10%, rgba(122,207,255,0.15), transparent),
              radial-gradient(800px 600px at -10% 20%, rgba(122,207,255,0.1), transparent),
              var(--bg);
  color: var(--text);
}

.container { width: min(1120px, 92%); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 10; backdrop-filter: saturate(1.2) blur(6px);
  background: rgba(11,15,21,0.6); border-bottom: 1px solid rgba(122,207,255,0.15);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.brand { display: flex; gap: 10px; align-items: center; }
.brand-mark { width: 28px; height: 28px; border-radius: 6px; background: var(--accent); }
.brand-name { font-weight: 800; letter-spacing: 0.4px; }
.nav { display: flex; gap: 18px; }
.nav a { color: var(--text); text-decoration: none; opacity: 0.9; }

.hero { padding: 72px 0 40px; }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero-copy h1 { font-size: 48px; line-height: 1.05; margin: 0 0 12px; }
.hero-copy p { margin: 0 0 24px; color: var(--muted); font-size: 18px; }
.cta-row { display: flex; gap: 14px; }
.secondary-cta { padding: 12px 18px; border-radius: 10px; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.secondary-cta { border: 1px solid rgba(122,207,255,0.35); color: var(--text); }
.hero-art img { width: 100%; border-radius: 18px; box-shadow: 0 10px 40px rgba(0,0,0,0.35); border: 1px solid rgba(122,207,255,0.15); }

/* Carousel */
.carousel { position: relative; }
.carousel .slides { position: relative; overflow: hidden; border-radius: 18px; box-shadow: 0 10px 40px rgba(0,0,0,0.35); border: 1px solid rgba(122,207,255,0.15); }
.carousel .slides .track { display: flex; width: 100%; transition: transform 400ms ease; }
.carousel .slides .track img { width: 100%; flex: 0 0 100%; display: block; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,0.4); color: #fff; border: 0; width: 36px; height: 36px; border-radius: 999px; display: grid; place-items: center; cursor: pointer; }
.carousel-btn:hover { background: rgba(0,0,0,0.55); }
.carousel-btn.prev { left: 8px; }
.carousel-btn.next { right: 8px; }
.carousel .dots { display: flex; gap: 6px; justify-content: center; padding: 8px 0; }
.carousel .dots .dot { width: 8px; height: 8px; border-radius: 999px; background: rgba(122,207,255,0.35); }
.carousel .dots .dot.active { background: var(--accent); }

section.features { padding: 56px 0; }
section.features h2 { margin: 0 0 18px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { background: var(--card); border: 1px solid rgba(122,207,255,0.15); border-radius: 14px; padding: 16px; }
.feature h3 { margin: 8px 0 6px; }
.feature p { margin: 0; color: var(--muted); }

.site-footer { border-top: 1px solid rgba(122,207,255,0.15); padding: 16px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-inner a { color: var(--muted); text-decoration: none; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .feature-grid { grid-template-columns: 1fr; }
}