:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e8e8;
  --fg-muted: #888888;
  --fg-dim: #555555;
  --accent: #ff6b2b;
  --accent-glow: rgba(255, 107, 43, 0.15);
  --accent-dim: #cc5522;
  --border: #2a2a2a;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Space Grotesk', sans-serif;
}

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

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

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

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 4rem 2rem;
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-badge {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  border: 1px solid var(--accent);
  display: inline-block;
  padding: 0.4rem 1rem;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

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

.hero .lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.hero-stat {
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
}

.stat-number {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--fg-muted);
  display: block;
  max-width: 400px;
}

.hero-bars {
  position: absolute;
  top: 0;
  right: -2rem;
  bottom: 0;
  display: flex;
  gap: 2.5rem;
  align-items: stretch;
  z-index: 1;
  opacity: 0.06;
}

.hero-bars .bar {
  width: 4px;
  background: var(--fg);
  border-radius: 2px;
}

/* ---- PROBLEM ---- */
.problem {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
}

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

.problem-label,
.pillars-label,
.identity-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 3rem;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2rem;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: var(--accent-dim);
}

.card-number {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
  margin-bottom: 1rem;
}

.problem-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ---- PILLARS ---- */
.pillars {
  padding: 6rem 2rem;
}

.pillars-inner {
  max-width: 800px;
  margin: 0 auto;
}

.pillars h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 3.5rem;
  letter-spacing: -0.01em;
}

.pillars-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.pillar {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}

.pillar:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.pillar-icon {
  font-size: 2rem;
  color: var(--accent);
  flex-shrink: 0;
  width: 2.5rem;
  text-align: center;
  margin-top: 0.2rem;
}

.pillar-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.pillar-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ---- IDENTITY ---- */
.identity {
  padding: 6rem 2rem;
  background: var(--bg-elevated);
}

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

.identity-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.identity-left h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  position: sticky;
  top: 2rem;
}

.identity-right p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.identity-right p:last-child {
  margin-bottom: 0;
  color: var(--fg);
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elevated) 100%);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing-marks {
  font-size: 5rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.closing h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.75;
  max-width: 550px;
  margin: 0 auto;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner {
  max-width: 800px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: var(--fg-dim);
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .identity-split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .identity-left h2 {
    position: static;
  }

  .hero {
    padding: 3rem 1.5rem;
  }

  .problem,
  .pillars,
  .identity,
  .closing {
    padding: 4rem 1.5rem;
  }

  .hero-bars {
    display: none;
  }

  .pillar {
    flex-direction: column;
    gap: 0.75rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .closing {
    padding: 5rem 1.25rem;
  }
}