:root {
  --bg: #FAFAF8;
  --bg-alt: #F2EFE9;
  --fg: #1A1A1A;
  --fg-muted: #6B6B6B;
  --accent: #C8893E;
  --accent-dark: #A06D28;
  --accent-light: #F5E6D3;
  --border: #E0DBD4;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navigation */
.nav {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 28px 64px;
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  font-weight: 400;
}

/* Section label */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

/* Hero */
.hero {
  padding: 80px 64px 56px;
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  max-width: 1200px;
}
.hero-left {}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 460px;
}

/* Lead leak grid */
.leak-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.leak-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.leak-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.leak-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: 4px;
}
.leak-desc {
  font-size: 0.82rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

.hero-footnote {
  margin-top: 40px;
  font-size: 0.82rem;
  color: var(--fg-muted);
  max-width: 560px;
}
.hero-footnote-bold {
  font-weight: 600;
  color: var(--fg);
}

/* Lead leaks detail */
.lead-leaks {
  padding: 80px 64px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.lead-leaks-inner {
  max-width: 1200px;
}
.lead-leaks-header {
  margin-bottom: 56px;
}
.lead-leaks-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.leak-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.leak-detail h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 12px;
  color: var(--fg);
}
.leak-detail p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Industries */
.industries {
  padding: 80px 64px;
  border-bottom: 1px solid var(--border);
}
.industries-inner {
  max-width: 1200px;
}
.industries-headline {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.industries-sub {
  font-size: 0.95rem;
  color: var(--fg-muted);
  max-width: 540px;
  margin-bottom: 48px;
}
.industry-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.industry-item {
  padding: 28px 32px 28px 0;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.industry-item:nth-child(3n) {
  border-right: none;
}
.industry-tag {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
}
.industry-detail {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* How it works */
.how-it-works {
  padding: 80px 64px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.how-inner {
  max-width: 1200px;
}
.how-inner .section-label { display: block; }
.how-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 56px;
}
.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 56px;
}
.step {}
.step-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 16px;
  font-weight: 400;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 10px;
}
.step p {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Audit callout */
.audit-callout {
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 36px 40px;
  background: var(--accent-light);
}
.audit-callout-inner {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 20px;
}
.audit-price {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--accent);
  font-weight: 400;
  line-height: 1;
  margin-right: 24px;
}
.audit-text strong {
  font-size: 1.05rem;
  display: block;
  margin-bottom: 4px;
}
.audit-text p {
  font-size: 0.82rem;
  color: var(--fg-muted);
}
.audit-detail {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Meet David */
.meet-david {
  padding: 80px 64px;
  border-bottom: 1px solid var(--border);
}
.meet-inner {
  max-width: 1200px;
}
.meet-content {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 80px;
  align-items: start;
}
.meet-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.meet-text p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.meet-creds {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-top: 8px;
}
.cred-item {
  border-left: 3px solid var(--accent);
  padding-left: 20px;
}
.cred-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--accent);
  font-weight: 400;
  line-height: 1;
  margin-bottom: 6px;
}
.cred-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* Closing */
.closing {
  padding: 96px 64px;
  background: var(--fg);
  color: var(--bg);
}
.closing-inner {
  max-width: 720px;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  color: var(--bg);
}
.closing p {
  font-size: 1rem;
  color: rgba(250, 250, 248, 0.65);
  line-height: 1.7;
  margin-bottom: 18px;
}

/* Footer */
.footer {
  padding: 40px 64px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
}
.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
}
.footer-links {
  margin-top: 12px;
}
.footer-links a {
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
}
.footer-links a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero { padding: 56px 24px 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .leak-grid { flex-direction: row; flex-wrap: wrap; }
  .leak-card { flex: 1 1 calc(50% - 8px); min-width: 160px; }
  .hero-footnote { margin-top: 24px; }
  .lead-leaks { padding: 56px 24px; }
  .leak-detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .industries { padding: 56px 24px; }
  .industry-list { grid-template-columns: 1fr; }
  .industry-item { border-right: none; }
  .how-it-works { padding: 56px 24px; }
  .steps-row { grid-template-columns: 1fr; gap: 32px; }
  .audit-callout-inner { flex-direction: column; gap: 20px; }
  .meet-david { padding: 56px 24px; }
  .meet-content { grid-template-columns: 1fr; gap: 40px; }
  .closing { padding: 64px 24px; }
  .footer { padding: 32px 24px; }
}