:root {
  --bg: #f8fafc;
  --bg-alt: #f0f4f8;
  --surface: #ffffff;
  --nav-bg: #0D1B2A;
  --nav-fg: #ffffff;
  --text-primary: #0D1B2A;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --accent-light: #FEF3C7;
  --divider: #e2e8f0;
  --card-bg: #ffffff;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  background: var(--nav-bg);
  color: var(--nav-fg);
  padding: 18px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  color: var(--accent);
  display: flex;
  align-items: center;
}

.brand-name {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.25rem;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.nav-tagline {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  background: var(--nav-bg);
  color: #ffffff;
  padding: 80px 48px 72px;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 64px;
  align-items: start;
}

.hero-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  color: #ffffff;
  margin-bottom: 20px;
}

.hero-headline em {
  color: var(--accent);
  font-style: normal;
}

.hero-sub {
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.pill-accent {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* STAT BLOCK */
.hero-stat-block {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.stat-item {
  padding: 20px 0;
}

.stat-item:first-child {
  padding-top: 0;
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 4px;
}

.stat-value {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2.25rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-sub {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.4;
}

.stat-divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
}

/* THECASE */
.thecase {
  background: var(--bg);
  padding: 96px 48px;
}

.thecase-inner {
  max-width: 860px;
  margin: 0 auto;
}

.thecase-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.thecase-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.thecase-body {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.thecase-divider {
  height: 1px;
  background: var(--divider);
  margin: 48px 0;
}

/* PRICING */
.pricing {
  background: var(--bg-alt);
  padding: 96px 48px;
}

.pricing-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-header {
  text-align: center;
  margin-bottom: 56px;
}

.pricing-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.pricing-sub {
  font-size: 1rem;
  color: var(--text-secondary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 16px;
  padding: 36px;
  position: relative;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.pricing-card-featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.08), 0 4px 16px rgba(0,0,0,0.06);
}

.card-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.card-badge-accent {
  color: var(--accent-dark);
  background: var(--accent-light);
  padding: 4px 10px;
  border-radius: 4px;
}

.card-qty {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.card-per-unit {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 3rem;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.per-unit-dollar {
  font-size: 1.75rem;
  vertical-align: super;
  color: var(--text-secondary);
}

.per-unit-tail {
  font-size: 1.25rem;
  color: var(--text-muted);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
}

.card-total {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

.card-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.check-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

.card-savings {
  margin-top: 20px;
  padding: 12px 16px;
  background: var(--accent-light);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-dark);
  text-align: center;
}

.pricing-note {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* COMPATIBILITY */
.compat {
  background: var(--nav-bg);
  color: #ffffff;
  padding: 80px 48px;
}

.compat-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.compat-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
}

.compat-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 400;
  color: #ffffff;
  margin-bottom: 48px;
  line-height: 1.3;
}

.compat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.compat-series-label {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 16px;
}

.compat-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.compat-list li {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.4;
}

.compat-part-numbers {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.part-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
}

.part-code {
  font-family: 'Courier New', monospace;
  font-size: 0.8125rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 4px 10px;
  border-radius: 4px;
  color: rgba(255,255,255,0.7);
}

/* SHIPPING */
.shipping {
  background: var(--bg);
  padding: 80px 48px;
}

.shipping-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.shipping-col {
  padding: 32px;
  background: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 12px;
}

.ship-icon {
  color: var(--accent);
  margin-bottom: 16px;
}

.shipping-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.shipping-body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CLOSING */
.closing {
  background: var(--accent);
  padding: 96px 48px;
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--nav-bg);
  margin-bottom: 28px;
  line-height: 1.2;
}

.closing-body {
  font-size: 1.0625rem;
  color: rgba(13, 27, 42, 0.75);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* FOOTER */
.footer {
  background: var(--nav-bg);
  color: rgba(255,255,255,0.5);
  padding: 40px 48px;
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand-name {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.125rem;
  color: #ffffff;
}

.footer-brand-tagline {
  font-size: 0.8125rem;
}

.footer-legal {
  font-size: 0.75rem;
  max-width: 400px;
  text-align: right;
  line-height: 1.5;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav {
    padding: 14px 24px;
  }
  
  .hero {
    padding: 48px 24px;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-stat-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  
  .stat-divider:nth-child(2) {
    display: none;
  }
  
  .thecase,
  .pricing,
  .shipping,
  .compat {
    padding: 64px 24px;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .compat-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .shipping-inner {
    grid-template-columns: 1fr;
  }
  
  .closing {
    padding: 64px 24px;
  }
  
  .footer {
    padding: 32px 24px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 20px;
  }
  
  .footer-legal {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .hero-stat-block {
    grid-template-columns: 1fr;
  }
  
  .stat-divider {
    display: none;
  }
}