*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #09090b;
  --bg-card: #111115;
  --fg: #f4f4f5;
  --fg-muted: #a1a1aa;
  --accent: #c8ff57;
  --accent-dim: rgba(200, 255, 87, 0.1);
  --border: #27272a;
}

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Nav */
.nav { padding: 1.5rem 2rem; border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; gap: 0.75rem; }
.nav-logo { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--fg); text-decoration: none; letter-spacing: -0.02em; }
.nav-badge { font-size: 0.65rem; background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(200, 255, 87, 0.2); padding: 0.2rem 0.6rem; border-radius: 99px; font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase; }

/* Hero */
.hero { padding: 7rem 2rem 5rem; max-width: 1100px; margin: 0 auto; }
.hero-inner { max-width: 780px; }
.hero-label { font-size: 0.7rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.5rem; }
.hero-headline { font-family: 'Syne', sans-serif; font-weight: 800; font-size: clamp(2.8rem, 7vw, 5rem); line-height: 1.05; letter-spacing: -0.03em; color: var(--fg); margin-bottom: 1.5rem; }
.hero-sub { font-size: 1.15rem; line-height: 1.65; color: var(--fg-muted); max-width: 560px; font-weight: 300; }

/* Features */
.features { padding: 4rem 2rem; max-width: 1100px; margin: 0 auto; border-top: 1px solid var(--border); }
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.feature-card { background: var(--bg); padding: 2.5rem; display: flex; flex-direction: column; gap: 0.75rem; transition: background 0.2s; }
.feature-card:hover { background: var(--bg-card); }
.feature-icon { color: var(--accent); width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--accent-dim); border-radius: 10px; flex-shrink: 0; }
.feature-card h3 { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.05rem; letter-spacing: -0.02em; }
.feature-card p { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.65; font-weight: 300; }

/* Closing */
.closing { padding: 6rem 2rem; max-width: 1100px; margin: 0 auto; }
.closing-inner { border-top: 1px solid var(--border); padding-top: 4rem; }
.closing-text { font-family: 'Syne', sans-serif; font-weight: 700; font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.2; letter-spacing: -0.03em; color: var(--fg); }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 2rem; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.footer-brand { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 0.9rem; }
.footer-tagline { font-size: 0.8rem; color: var(--fg-muted); }

/* Mobile */
@media (max-width: 640px) {
  .features-grid { grid-template-columns: 1fr; }
  .hero { padding: 5rem 1.5rem 3rem; }
  .features { padding: 3rem 1.5rem; }
  .closing { padding: 4rem 1.5rem; }
  .nav { padding: 1.25rem 1.5rem; }
  .closing-text { font-size: 1.5rem; }
}