:root {
  --bg: #F5F0E8;
  --bg-alt: #EDE7DB;
  --fg: #1A1A1A;
  --fg-muted: #6B6560;
  --accent: #C4603A;
  --accent-warm: #E8876A;
  --border: #D5CEc4;
  --tier-cold: #A8A8A0;
  --tier-warm: #C4603A;
  --tier-hot: #7A3020;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 600;
  line-height: 1.2;
}

/* Nav */
.nav {
  padding: 24px 48px;
  display: flex;
  align-items: center;
}
.nav-brand {
  font-family: 'Playfair Display', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.02em;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 85vh;
  overflow: hidden;
}
.hero-image {
  background: var(--bg-alt);
  overflow: hidden;
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 72px 80px 64px;
}
.hero-text h1 {
  font-size: clamp(42px, 5vw, 72px);
  color: var(--fg);
  margin-bottom: 32px;
}
.hero-lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* Framework */
.framework {
  padding: 120px 48px;
  background: var(--fg);
  color: var(--bg);
}
.framework-header {
  max-width: 600px;
  margin-bottom: 72px;
}
.eyebrow {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-warm);
  margin-bottom: 16px;
}
.framework-header h2 {
  font-size: clamp(32px, 4vw, 52px);
  margin-bottom: 24px;
}
.framework-intro {
  font-size: 17px;
  color: #B0A89E;
  line-height: 1.7;
}
.framework-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-bottom: 64px;
}
.stage {
  background: #242424;
  padding: 48px 40px;
}
.stage-number {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent-warm);
  margin-bottom: 20px;
}
.stage h3 {
  font-size: 26px;
  color: var(--bg);
  margin-bottom: 12px;
}
.stage p {
  font-size: 15px;
  color: #8A8078;
  line-height: 1.65;
}
.framework-image {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  display: block;
  border-radius: 4px;
  overflow: hidden;
}
.framework-image img {
  width: 100%;
  display: block;
}

/* Temperature */
.temperature {
  padding: 120px 48px;
  background: var(--bg-alt);
}
.temp-content {
  max-width: 680px;
}
.temp-content h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  margin-bottom: 24px;
}
.temp-content > p {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 56px;
}
.temp-scale {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
}
.temp-tier {
  padding: 36px 32px;
  border-right: 1px solid var(--border);
}
.temp-tier:last-child { border-right: none; }
.temp-indicator {
  width: 32px;
  height: 4px;
  background: var(--fg-muted);
  margin-bottom: 20px;
  border-radius: 2px;
}
.cold .temp-indicator { background: var(--tier-cold); }
.warm .temp-indicator { background: var(--tier-warm); }
.hot .temp-indicator { background: var(--tier-hot); }
.temp-tier h4 {
  font-size: 15px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 10px;
}
.temp-tier p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Audience */
.audience {
  padding: 120px 48px;
  background: var(--bg);
}
.audience-text {
  margin-bottom: 64px;
}
.audience-text h2 {
  font-size: clamp(28px, 3.5vw, 44px);
  max-width: 540px;
}
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
}
.persona {
  padding: 48px 40px;
  border-right: 1px solid var(--border);
}
.persona:last-child { border-right: none; }
.persona-icon {
  margin-bottom: 20px;
}
.persona h4 {
  font-size: 18px;
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  margin-bottom: 12px;
}
.persona p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Closing */
.closing {
  padding: 120px 48px;
  background: var(--fg);
  text-align: center;
}
.closing-content {
  max-width: 680px;
  margin: 0 auto;
}
.closing h2 {
  font-size: clamp(32px, 4vw, 56px);
  color: var(--bg);
  margin-bottom: 32px;
}
.closing p {
  font-size: 18px;
  color: #8A8078;
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 40px 48px;
  background: var(--fg);
  border-top: 1px solid #2E2E2E;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  font-family: 'Playfair Display', serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--bg);
}
.footer p {
  font-size: 13px;
  color: #5A5A5A;
}

/* Responsive */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-image { height: 50vw; }
  .hero-text { padding: 40px 24px; }
  .framework { padding: 80px 24px; }
  .framework-grid { grid-template-columns: 1fr; }
  .temperature { padding: 80px 24px; }
  .temp-scale { grid-template-columns: 1fr; }
  .temp-tier { border-right: none; border-bottom: 1px solid var(--border); }
  .temp-tier:last-child { border-bottom: none; }
  .audience { padding: 80px 24px; }
  .audience-grid { grid-template-columns: 1fr; }
  .persona { border-right: none; border-bottom: 1px solid var(--border); }
  .persona:last-child { border-bottom: none; }
  .closing { padding: 80px 24px; }
  .footer { padding: 32px 24px; flex-direction: column; gap: 8px; text-align: center; }
}