@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --fg-primary: #e8e6e3;
  --fg-secondary: #8a8580;
  --fg-muted: #5a5550;
  --accent: #d4a020;
  --accent-dim: #a07818;
  --accent-glow: rgba(212, 160, 32, 0.15);
  --border: #2a2a2a;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Space Grotesk', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HERO ===== */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  max-width: 800px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-lede {
  font-size: 1.2rem;
  color: var(--fg-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat-value {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* ===== PIPELINE ===== */
.pipeline {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.section-tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-heading {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  max-width: 600px;
}

.section-sub {
  color: var(--fg-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 56px;
}

.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2px;
}

.pipeline-step {
  background: var(--bg-secondary);
  padding: 36px 28px;
  position: relative;
}

.pipeline-step::before {
  content: attr(data-step);
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 16px;
}

.pipeline-step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.pipeline-step p {
  font-size: 0.9rem;
  color: var(--fg-secondary);
  line-height: 1.6;
}

.pipeline-step .step-arrow {
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 1.2rem;
  z-index: 2;
}

/* ===== PRINCIPLES ===== */
.principles {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.principles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 56px;
}

.principle {
  background: var(--bg-secondary);
  padding: 32px 28px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s;
}

.principle:hover {
  border-left-color: var(--accent);
}

.principle-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent-dim);
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}

.principle h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.principle p {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  line-height: 1.6;
}

/* ===== ECONOMICS ===== */
.economics {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.econ-display {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2px;
  margin-top: 56px;
}

.econ-card {
  background: var(--bg-secondary);
  padding: 40px 28px;
  text-align: center;
}

.econ-card .econ-value {
  font-family: var(--mono);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}

.econ-card .econ-label {
  font-size: 0.85rem;
  color: var(--fg-secondary);
}

.econ-card .econ-detail {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-top: 12px;
  font-family: var(--mono);
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 0 80px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing h2 .accent {
  color: var(--accent);
}

.closing p {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 80px 0 60px; }
  .hero-stats { gap: 32px; }
  .pipeline-grid { grid-template-columns: 1fr; }
  .pipeline-step .step-arrow { display: none; }
  .principles-grid { grid-template-columns: 1fr; }
  .econ-display { grid-template-columns: 1fr; }
  .footer { flex-direction: column; gap: 16px; text-align: center; }
}