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

:root {
  --bg: #0B0E14;
  --bg-card: #141820;
  --text: #E8ECF4;
  --text-muted: #8892A8;
  --text-dim: #4A5568;
  --accent: #2DE8A3;
  --accent-hover: #5EEDB8;
  --accent-glow: rgba(45,232,163,.15);
  --border: #1E2536;
  --border-hover: #2A3348;
  --warning: #FFB547;
  --warning-bg: rgba(255,181,71,.06);
  --warning-border: rgba(255,181,71,.15);
  --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;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(45,232,163,.04), transparent),
    radial-gradient(circle at 90% 80%, rgba(167,139,250,.02), transparent);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
}
.btn:hover { transform: translateY(-1px) }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #20D99A);
  color: #0B0E14;
  padding: 10px 24px;
  font-size: 0.95rem;
  box-shadow: 0 2px 12px rgba(45,232,163,.2);
}
.btn-primary:hover { box-shadow: 0 4px 24px rgba(45,232,163,.35); filter: brightness(1.1) }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 10px 24px;
  font-size: 0.95rem;
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--border-hover); color: var(--text) }
.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: 32px; height: 32px }
.nav-name {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color .15s;
}
.nav-link:hover { color: var(--text) }

/* 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(45,232,163,.06) 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;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-cta { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap }

/* Stats strip */
.stats-strip {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat { text-align: center }
.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* How It Works */
.how-section {
  max-width: 900px;
  margin: 0 auto;
  padding: 72px 24px;
}
.how-section h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.how-step {
  text-align: center;
  padding: 28px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .15s;
}
.how-step:hover { border-color: var(--border-hover) }
.how-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 14px;
}
.how-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.how-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Features */
.features-section {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 72px;
}
.features-section h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}
.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .15s;
}
.feature:hover { border-color: var(--border-hover) }
.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}
.feature h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.feature p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Risk banner */
.risk-section {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px 48px;
}
.risk-banner {
  padding: 18px 24px;
  border-radius: var(--radius);
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  font-size: 0.9rem;
  color: var(--warning);
  line-height: 1.6;
}
.risk-banner strong { color: var(--warning) }

/* 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-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color .15s;
}
.footer-links a:hover { color: var(--accent) }
.footer-disclaimer {
  font-size: 0.8rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 12px;
  line-height: 1.5;
}
.footer-copy {
  font-size: 0.75rem;
  color: var(--text-dim);
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
  .how-steps { grid-template-columns: 1fr }
  .features { grid-template-columns: 1fr }
  .stats-strip { gap: 24px }
  .nav-links { display: none }
}

@media (max-width: 600px) {
  .hero { padding: 50px 20px 40px }
  .hero h1 { font-size: 1.8rem }
  .features-section { padding: 0 16px 48px }
  .how-section { padding: 48px 16px }
  .risk-section { padding: 0 16px 32px }
  .feature { padding: 20px 16px }
  .how-step { padding: 20px 16px }
}