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

:root {
  --bg: #F8F5F0;
  --fg: #1C1917;
  --fg-mid: #78716C;
  --accent: #C8933F;
  --accent-light: #E8C97A;
  --accent-dim: rgba(200, 147, 63, 0.12);
  --border: rgba(28, 25, 23, 0.12);
  --section-bg: #EDE9E2;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 64px;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.nav-tagline {
  font-size: 0.8125rem;
  color: var(--fg-mid);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Section label + count row */
.section-label {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

.section-count {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 4rem;
  font-weight: 300;
  color: rgba(28, 25, 23, 0.06);
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}

/* ===== HERO ===== */
.hero {
  padding: 100px 64px 96px;
  max-width: 900px;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.eyebrow-dash {
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.eyebrow-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mid);
}

.hero-headline {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 32px;
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-mid);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== PROBLEM ===== */
.problem {
  background: var(--section-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 64px;
}

.problem-inner {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 48px;
  max-width: 900px;
  align-items: start;
}

.problem-statement {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 24px;
}

.problem-body {
  font-size: 1rem;
  color: var(--fg-mid);
  line-height: 1.7;
  margin-bottom: 20px;
}

.problem-industry {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.125rem;
  font-style: italic;
  color: var(--fg);
}

/* ===== PHILOSOPHY ===== */
.philosophy {
  padding: 96px 64px;
}

.philosophy-inner {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 48px;
  max-width: 900px;
  align-items: start;
}

.philosophy-heading {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(3rem, 5vw, 5rem);
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}

.philosophy-subhead {
  font-size: 0.8125rem;
  color: var(--fg-mid);
  margin-bottom: 40px;
  letter-spacing: 0.04em;
}

.philosophy-body {
  font-size: 1rem;
  color: var(--fg-mid);
  margin-bottom: 32px;
  line-height: 1.7;
}

.sample-questions {
  margin-bottom: 40px;
}

.question-block {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.question-block:last-child {
  border-bottom: none;
}

.q-mark {
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
  font-size: 0.875rem;
  padding-top: 2px;
}

.question-block p {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--fg);
  line-height: 1.4;
}

.philosophy-result {
  font-size: 0.9375rem;
  color: var(--fg);
  line-height: 1.7;
}

.philosophy-result em {
  font-style: italic;
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.0625rem;
}

/* ===== LOOP ===== */
.loop {
  background: var(--fg);
  color: var(--bg);
  padding: 96px 64px;
}

.loop-inner {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 48px;
  max-width: 900px;
  align-items: start;
}

.loop .section-count { color: rgba(248, 245, 240, 0.08); }
.loop .section-label { color: var(--accent-light); }

.loop-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 1px solid rgba(248, 245, 240, 0.1);
  align-items: start;
}

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

.step-num {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 2rem;
  font-weight: 300;
  color: var(--accent);
  line-height: 1.1;
  padding-top: 4px;
}

.step-title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.625rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step-time {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-light);
  margin-left: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.step-body {
  font-size: 0.9375rem;
  color: rgba(248, 245, 240, 0.65);
  line-height: 1.65;
}

/* ===== MOAT ===== */
.moat {
  padding: 96px 64px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.moat-inner {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 48px;
  max-width: 900px;
  align-items: start;
}

.moat-statement {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 56px;
}

.moat-statement em {
  color: var(--accent);
  font-style: italic;
}

.moat-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: center;
  margin-bottom: 48px;
  border: 1px solid var(--border);
  padding: 40px;
}

.founder-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.founder-avatar {
  margin-bottom: 4px;
}

.avatar-placeholder {
  width: 56px;
  height: 56px;
  border-radius: 50%;
}

.founder-a { background: #D4C4A8; }
.founder-b { background: #A8B8C4; }

.founder-stack {
  text-align: center;
}

.constitution-line {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}

.constitution-desc {
  font-size: 0.75rem;
  color: var(--fg-mid);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.zuck-core {
  text-align: center;
  padding: 0 40px;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.zuck-label {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 2px;
}

.zuck-sub {
  font-size: 0.6875rem;
  color: var(--fg-mid);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.moat-compounding {
  font-size: 1rem;
  color: var(--fg-mid);
  line-height: 1.7;
}

.moat-compounding strong {
  color: var(--fg);
}

.moat-compounding em {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.0625rem;
  font-style: italic;
}

/* ===== CLOSING ===== */
.closing {
  padding: 96px 64px;
  background: var(--section-bg);
  border-top: 1px solid var(--border);
}

.closing-inner {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 48px;
  max-width: 900px;
  align-items: start;
}

.closing-headline {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

.closing-headline em {
  color: var(--accent);
  font-style: italic;
}

.closing-body {
  font-size: 1.0625rem;
  color: var(--fg-mid);
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 560px;
}

.closing-final {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.375rem;
  font-style: italic;
  color: var(--fg);
  line-height: 1.5;
  margin-top: 48px;
  max-width: 560px;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 64px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 900px;
}

.footer-brand {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 16px;
}

.footer-note {
  font-size: 0.9375rem;
  color: var(--fg-mid);
  margin-bottom: 32px;
  max-width: 420px;
}

.footer-meta {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .site-nav { padding: 20px 28px; }
  .hero { padding: 64px 28px 72px; }
  .problem, .philosophy, .loop, .moat, .closing { padding: 64px 28px; }
  .site-footer { padding: 48px 28px; }

  .problem-inner,
  .philosophy-inner,
  .loop-inner,
  .moat-inner,
  .closing-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-count { display: none; }

  .moat-diagram {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }

  .zuck-core {
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 24px 0;
  }

  .step {
    grid-template-columns: 48px 1fr;
    gap: 16px;
  }

  .hero-headline { font-size: 3rem; }
  .philosophy-heading { font-size: 3rem; }
  .closing-headline { font-size: 2.25rem; }
}