:root {
  --bg-primary: #0D1B2A;
  --bg-secondary: #112236;
  --bg-tertiary: #16304F;
  --accent: #E8A838;
  --accent-dim: rgba(232, 168, 56, 0.15);
  --fg-primary: #F0F4F8;
  --fg-secondary: #8BA3BC;
  --fg-dim: rgba(240, 244, 248, 0.5);
  --border: rgba(255, 255, 255, 0.08);
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2.5rem;
  display: flex;
  align-items: center;
  background: rgba(13, 27, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2.5rem 6rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(232,168,56,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 860px;
}
.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 2rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  line-height: 1.08;
  color: var(--fg-primary);
  margin-bottom: 1.75rem;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--fg-secondary);
  max-width: 580px;
  font-weight: 300;
}

/* STATS */
.stats {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2.5rem;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
}
.stat { text-align: center; flex: 1; }
.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 0.4rem;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--fg-secondary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 500;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
  flex-shrink: 0;
}

/* PROBLEM */
.problem {
  padding: 8rem 2.5rem;
}
.problem-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 5rem;
  align-items: start;
}
.problem-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 0.35rem;
}
.problem-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.15;
  color: var(--fg-primary);
  margin-bottom: 2rem;
}
.problem-body p {
  color: var(--fg-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1.25rem;
  max-width: 600px;
  font-weight: 300;
}
.problem-body p:last-child { margin-bottom: 0; }

/* HOW */
.how {
  padding: 8rem 2.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}
.how-inner { max-width: 1100px; margin: 0 auto; }
.how-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.how-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--fg-primary);
  margin-bottom: 4rem;
  font-weight: 400;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.step { padding: 0; }
.step-num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--accent-dim);
  line-height: 1;
  margin-bottom: 1.25rem;
}
.step-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 0.75rem;
}
.step-body {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--fg-secondary);
  font-weight: 300;
}

/* ESRS SECTION */
.esrs-section {
  padding: 8rem 2.5rem;
  background: var(--bg-primary);
}
.esrs-inner { max-width: 1100px; margin: 0 auto; }
.esrs-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bg-primary);
  background: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 2rem;
  margin-bottom: 1.75rem;
}
.esrs-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--fg-primary);
  font-weight: 400;
  margin-bottom: 1rem;
}
.esrs-sub {
  font-size: 1rem;
  color: var(--fg-secondary);
  max-width: 560px;
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 3.5rem;
}
.esrs-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.esrs-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.esrs-item:nth-child(odd) { padding-right: 3rem; }
.esrs-item:nth-child(even) { padding-left: 3rem; border-left: 1px solid var(--border); }
.esrs-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.esrs-item-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 0.35rem;
}
.esrs-item-body {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  line-height: 1.6;
  font-weight: 300;
}

/* CORRIDORS */
.corridors {
  padding: 8rem 2.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}
.corridors-inner { max-width: 1100px; margin: 0 auto; }
.corridors-tag {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2.5rem;
}
.corridors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.corridor {
  background: var(--bg-primary);
  padding: 2.5rem 2rem;
  border: 1px solid var(--border);
}
.corridor-route {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--fg-primary);
  margin-bottom: 1rem;
}
.corridor-commodities {
  font-size: 0.82rem;
  color: var(--fg-secondary);
  line-height: 1.8;
  font-weight: 300;
}

/* CLOSING */
.closing {
  padding: 10rem 2.5rem;
  background: var(--bg-primary);
  text-align: center;
}
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--fg-primary);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 1.75rem;
}
.closing-body {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.8;
  font-weight: 300;
  max-width: 560px;
  margin: 0 auto;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 2.5rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.footer-tagline {
  font-size: 0.82rem;
  color: var(--fg-secondary);
  font-weight: 300;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { padding: 7rem 1.5rem 4rem; }
  .hero-headline { font-size: 2.5rem; }
  .stats-inner { flex-direction: column; gap: 2rem; }
  .stat-divider { display: none; }
  .problem-inner { grid-template-columns: 1fr; gap: 2rem; }
  .how-steps { grid-template-columns: 1fr; gap: 3rem; }
  .esrs-items { grid-template-columns: 1fr; }
  .esrs-item:nth-child(odd) { padding-right: 0; }
  .esrs-item:nth-child(even) { padding-left: 0; border-left: none; }
  .corridors-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}
@media (max-width: 480px) {
  .hero-headline { font-size: 2.1rem; }
  .stats-inner { padding: 2rem 1.5rem; }
}