:root {
  --nav-bg: #0B1628;
  --bg-dark: #0B1628;
  --bg-mid: #0F1D32;
  --bg-light: #F8FAFC;
  --bg-white: #FFFFFF;
  --accent: #3B82F6;
  --accent-warm: #F97316;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --border: rgba(148,163,184,0.12);
  --border-light: #E2E8F0;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
  background: var(--nav-bg);
  padding: 20px 40px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.nav-tag {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Hero */
.hero {
  background: var(--bg-dark);
  padding: 100px 40px 80px;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  font-weight: 500;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-warm);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-headline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 36px;
}
.hero-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.hero-badge {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-warm);
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.25);
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

/* Stats */
.stats {
  background: var(--bg-mid);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 40px;
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* Section labels */
.section-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: 48px;
}
.section-title-light {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

/* How it works */
.hiw { padding: 80px 40px; background: var(--bg-white); }
.hiw-inner { max-width: 1200px; margin: 0 auto; }
.hiw-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.hiw-step {
  padding: 28px;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  transition: border-color 0.2s;
}
.hiw-step:hover { border-color: var(--accent); }
.step-num {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.hiw-step h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.hiw-step p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
}

/* Problem */
.problem { padding: 80px 40px; background: var(--bg-dark); }
.problem-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.problem-body { font-size: 1rem; line-height: 1.75; color: var(--text-secondary); margin-top: 24px; margin-bottom: 32px; }
.problem-quote {
  background: rgba(59, 130, 246, 0.08);
  border-left: 3px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 8px 8px 0;
}
.quote-text { font-size: 1rem; font-style: italic; color: var(--text-primary); line-height: 1.6; margin-bottom: 8px; }
.quote-attr { font-size: 0.8125rem; color: var(--text-secondary); }

.problem-graphic { display: flex; flex-direction: column; gap: 16px; padding: 32px; background: rgba(255,255,255,0.04); border-radius: 12px; border: 1px solid rgba(255,255,255,0.08); }
.pg-bar { display: flex; justify-content: space-between; align-items: center; padding: 14px 20px; background: rgba(249, 115, 22, 0.15); border-radius: 8px; border: 1px solid rgba(249, 115, 22, 0.3); }
.pg-bar--early { background: rgba(59, 130, 246, 0.12); border-color: rgba(59, 130, 246, 0.3); }
.pg-bar--deadline { background: rgba(239, 68, 68, 0.12); border-color: rgba(239, 68, 68, 0.3); }
.pg-label { font-size: 0.875rem; color: var(--text-secondary); }
.pg-val { font-family: 'Space Grotesk', monospace; font-weight: 700; font-size: 0.875rem; color: #F97316; }
.pg-early-val { color: #3B82F6; }
.pg-deadline-val { color: #EF4444; }

/* Features */
.features { padding: 80px 40px; background: var(--bg-light); }
.features-inner { max-width: 1200px; margin: 0 auto; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg-white); border: 1px solid var(--border-light); border-radius: 12px; padding: 28px; transition: box-shadow 0.2s, border-color 0.2s; }
.feature-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.08); border-color: var(--accent); }
.feature-icon { width: 40px; height: 40px; background: rgba(59,130,246,0.1); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--accent); }
.feature-card h3 { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600; color: var(--text-dark); margin-bottom: 10px; letter-spacing: -0.01em; }
.feature-card p { font-size: 0.9rem; line-height: 1.6; color: var(--text-muted); }

/* Closing */
.closing { padding: 100px 40px; background: var(--bg-dark); }
.closing-inner { max-width: 1200px; margin: 0 auto; text-align: center; }
.closing-headline { font-family: 'Space Grotesk', sans-serif; font-size: clamp(2rem, 4vw, 3.25rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.03em; color: var(--text-primary); margin-bottom: 24px; }
.closing-body { font-size: 1.125rem; line-height: 1.7; color: var(--text-secondary); max-width: 640px; margin: 0 auto; }

/* Footer */
.footer { background: #070F1C; padding: 48px 40px; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
.footer-brand { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1rem; color: var(--text-primary); }
.footer-tagline { font-size: 0.8125rem; color: var(--text-secondary); }
.footer-meta { display: flex; gap: 8px; align-items: center; font-size: 0.8125rem; color: var(--text-secondary); margin-top: 4px; }
.footer-sep { color: var(--text-muted); }
.footer-copy { font-size: 0.75rem; color: var(--text-muted); margin-top: 8px; }

/* Responsive */
@media (max-width: 900px) {
  .hiw-steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-inner { grid-template-columns: 1fr; gap: 40px; }
  .stats-inner { flex-wrap: wrap; gap: 16px; }
  .stat-divider { display: none; }
}
@media (max-width: 640px) {
  .hero { padding: 60px 24px 48px; }
  .nav { padding: 16px 24px; }
  .stats, .hiw, .features, .problem, .closing, .footer { padding-left: 24px; padding-right: 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-headline { font-size: 2.5rem; }
}