/* Turbolong Landing Page */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root {
  --bg: #080b12;
  --bg-card: #0f1320;
  --text: #e4e8f1;
  --text-muted: #8892a8;
  --accent: #00e599;
  --accent-dim: #00c2bb;
  --border: #1a1f30;
  --radius: 12px;
}

html { scroll-behavior: smooth }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.accent { color: var(--accent) }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px) }
.btn-primary {
  background: var(--accent);
  color: #080b12;
  padding: 10px 24px;
  font-size: 0.95rem;
}
.btn-primary:hover { box-shadow: 0 4px 20px rgba(0,229,153,0.3) }
.btn-lg { padding: 14px 36px; font-size: 1.1rem }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo { width: 36px; height: 36px }
.nav-name {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* Hero */
.hero {
  position: relative;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 24px 60px;
}
.hero-glow {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,229,153,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
}
.hero-cta { display: flex; justify-content: center; gap: 12px }

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.feature h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* CTA section */
.cta-section {
  text-align: center;
  padding: 60px 24px 80px;
  max-width: 600px;
  margin: 0 auto;
}
.cta-section h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-section p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
  text-align: center;
}
.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 12px;
  line-height: 1.5;
}
.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 600px) {
  .hero { padding: 50px 20px 40px }
  .features { padding: 20px 16px 60px; gap: 16px }
  .feature { padding: 24px 20px }
}