:root {
  --bg: #0a0a0c;
  --bg-elevated: #131318;
  --fg: #e8e4df;
  --fg-muted: #8a8580;
  --accent: #8b2252;
  --accent-light: #c74b7a;
  --gold: #c9a84c;
  --gold-muted: rgba(201, 168, 76, 0.15);
  --burgundy-glow: rgba(139, 34, 82, 0.25);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1100px;
  --space-xl: clamp(80px, 10vw, 140px);
  --space-lg: clamp(48px, 6vw, 80px);
  --space-md: clamp(24px, 3vw, 40px);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* — HERO — */
.hero {
  position: relative;
  padding: var(--space-xl) 24px;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  width: 100%;
}
.hero-tag {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  background: linear-gradient(135deg, var(--fg) 40%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  max-width: 600px;
  color: var(--fg-muted);
  line-height: 1.75;
}
.hero-glow {
  position: absolute;
  top: 30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--burgundy-glow) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
}

/* — PROBLEM — */
.problem {
  padding: var(--space-xl) 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.problem-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 20px;
}
.problem h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.problem-body {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  max-width: 640px;
  color: var(--fg-muted);
  line-height: 1.75;
}

/* — AGENTS — */
.agents {
  padding: var(--space-xl) 24px;
  background: var(--bg-elevated);
}
.agents-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.agents h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}
.agent-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.agent-card {
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 36px;
  background: rgba(255,255,255,0.02);
  transition: border-color 0.3s ease;
}
.agent-card:hover {
  border-color: var(--accent);
}
.agent-icon {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--gold);
  background: var(--gold-muted);
  display: inline-block;
  padding: 6px 14px;
  border-radius: 6px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
.agent-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--fg);
}
.agent-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* — CONTRAST — */
.contrast {
  padding: var(--space-xl) 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.contrast-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.contrast-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: var(--space-md);
}
.contrast-col {
  padding: 36px;
  border-radius: 12px;
}
.contrast-before {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255,255,255,0.06);
}
.contrast-after {
  background: var(--burgundy-glow);
  border: 1px solid rgba(139, 34, 82, 0.4);
}
.contrast-col h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--fg);
}
.contrast-col ul {
  list-style: none;
  padding: 0;
}
.contrast-col li {
  font-size: 0.95rem;
  color: var(--fg-muted);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  line-height: 1.6;
}
.contrast-col li:last-child {
  border-bottom: none;
}
.contrast-after li {
  color: var(--fg);
}

/* — CLOSING — */
.closing {
  padding: var(--space-xl) 24px;
  text-align: center;
}
.closing-inner {
  max-width: 800px;
  margin: 0 auto;
}
.closing h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--fg) 30%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.closing-sub {
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  color: var(--fg-muted);
  line-height: 1.75;
}

/* — FOOTER — */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--fg);
}
.footer-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* — RESPONSIVE — */
@media (max-width: 768px) {
  .agent-grid {
    grid-template-columns: 1fr;
  }
  .contrast-table {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    padding-top: 80px;
    padding-bottom: 80px;
  }
  .hero-glow {
    width: 350px;
    height: 350px;
    top: 20%;
    right: -20%;
  }
  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}