/* Backburn landing page — trust-document archetype */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Inter+Tight:wght@600;700;800&family=JetBrains+Mono:wght@500&display=swap');

:root {
  --primary: #1F3D2E;
  --primary-dark: #15291F;
  --primary-light: #2F5A45;
  --accent: #E76F2D;
  --accent-light: #F2A35F;
  --accent-dark: #C95A1E;
  --cream: #F7F1E3;
  --cream-warm: #F2EAD3;
  --ink: #1A1F2E;
  --ink-soft: #2D3447;
  --muted: #6B6157;
  --border: #D8CFB8;
  --border-dark: #B5AC92;
  --paper: #FBF8EF;
  --success: #4F7942;

  --font-display: "Inter Tight", "SF Pro Display", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: var(--font-body); color: var(--ink); background: var(--paper); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3, h4 { font-family: var(--font-display); color: var(--primary); letter-spacing: -0.02em; line-height: 1.12; margin: 0; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; margin-top: 0; }
h3 { font-size: 1.25rem; font-weight: 700; }

.accent { color: var(--accent); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--accent);
  margin-bottom: .8rem;
  font-weight: 500;
}

.section-title { margin-bottom: 1.5rem; }

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  background: var(--primary);
  color: var(--cream);
  border-bottom: 3px solid var(--accent);
  position: sticky;
  top: 0;
  z-index: 100;
}
.brand { display: flex; align-items: center; gap: .6rem; color: var(--cream); font-family: var(--font-display); font-weight: 800; font-size: 1.4rem; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 32px; width: 32px; }

.site-nav { display: flex; gap: 1.8rem; align-items: center; }
.site-nav a { color: var(--cream); opacity: .85; font-weight: 500; font-size: .95rem; }
.site-nav a:hover { opacity: 1; color: var(--accent-light); text-decoration: none; }
.site-nav .nav-cta {
  background: var(--accent);
  color: white;
  padding: .5rem 1rem;
  border-radius: 6px;
  opacity: 1;
}
.site-nav .nav-cta:hover { background: var(--accent-dark); color: white; }

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  padding: 5rem 2rem 6rem;
  max-width: 1200px;
  margin: 0 auto;
  background-image: radial-gradient(circle at 90% 10%, rgba(231,111,45,.08), transparent 50%);
}

.badge-pill {
  display: inline-block;
  padding: .4rem 1rem;
  background: var(--cream-warm);
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 { margin-bottom: 1.5rem; }
.lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  margin: 0 0 2rem;
  line-height: 1.55;
}
.lede strong { color: var(--primary); }

.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.hero-trust { font-size: .85rem; color: var(--muted); font-weight: 500; }

/* Hero card (dossier mock) */
.hero-card { display: flex; justify-content: center; }
.dossier-mock {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.8rem;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 12px 40px rgba(26,31,46,.12);
  transform: rotate(-1.5deg);
  position: relative;
}
.dossier-mock::before {
  content: "";
  position: absolute;
  inset: -3px;
  border: 1.5px dashed var(--accent);
  border-radius: 16px;
  z-index: -1;
  opacity: .3;
}
.mock-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.2rem; padding-bottom: .8rem; border-bottom: 2px solid var(--primary); }
.mock-label { font-family: var(--font-mono); font-size: .75rem; color: var(--primary); font-weight: 700; letter-spacing: .08em; }
.mock-id { font-family: var(--font-mono); font-size: .75rem; color: var(--muted); }
.mock-row { display: flex; justify-content: space-between; padding: .55rem 0; border-bottom: 1px dotted var(--border); font-size: .9rem; }
.mock-row:last-of-type { border-bottom: none; }
.mock-row span { color: var(--muted); }
.mock-row strong { color: var(--ink); text-align: right; max-width: 60%; }
.mock-score { color: var(--accent) !important; font-family: var(--font-mono); }
.mock-divider { height: 1px; background: var(--border); margin: 1rem 0; }
.mock-quote { font-style: italic; color: var(--ink-soft); font-size: .9rem; padding: .8rem 1rem; background: var(--cream-warm); border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; line-height: 1.5; }
.mock-footer { margin-top: 1rem; font-size: .75rem; color: var(--muted); text-align: center; letter-spacing: .02em; }

/* ---------- Buttons ---------- */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .85rem 1.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, box-shadow .15s ease;
  border: 2px solid transparent;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-dark); color: white; box-shadow: 0 8px 24px rgba(231,111,45,.25); transform: translateY(-1px); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-ghost:hover { background: var(--primary); color: var(--cream); text-decoration: none; }
.btn-lg { padding: 1rem 1.8rem; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* ---------- Sections ---------- */
section { padding: 5rem 0; }

.section-pain { background: var(--cream); }
.section-pain .section-title { text-align: center; margin-bottom: 3rem; max-width: 720px; margin-left: auto; margin-right: auto; }
.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.quote-grid blockquote {
  background: white;
  border-left: 4px solid var(--accent);
  margin: 0;
  padding: 1.5rem 1.5rem 1.2rem;
  border-radius: 0 10px 10px 0;
  color: var(--ink-soft);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.5;
  box-shadow: 0 2px 12px rgba(26,31,46,.05);
}
.quote-grid cite { display: block; margin-top: .8rem; font-size: .8rem; color: var(--muted); font-style: normal; font-weight: 600; }
.section-kicker { text-align: center; max-width: 720px; margin: 0 auto; font-size: 1.1rem; color: var(--ink-soft); line-height: 1.6; }
.section-kicker strong { color: var(--primary); }

/* How it works */
.section-how { background: var(--paper); text-align: center; }
.section-how .section-title { max-width: 720px; margin-left: auto; margin-right: auto; }
.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  text-align: left;
}
.step-card {
  background: white;
  padding: 2rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  position: relative;
}
.step-num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1rem;
  letter-spacing: .04em;
}
.step-card h3 { margin-bottom: .8rem; }
.step-card p { color: var(--ink-soft); margin: 0; font-size: .98rem; }

/* Proof */
.section-proof { background: var(--primary); color: var(--cream); }
.section-proof .eyebrow { color: var(--accent-light); }
.section-proof .section-title { color: var(--cream); max-width: 760px; margin-bottom: 3rem; }
.proof-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.proof-card {
  background: rgba(247,241,227,.06);
  border: 1px solid rgba(247,241,227,.15);
  padding: 2rem 1.5rem;
  border-radius: 12px;
}
.proof-stat {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: .6rem;
}
.proof-label {
  font-size: .9rem;
  color: var(--cream);
  opacity: .85;
  line-height: 1.45;
}

/* Pricing */
.section-pricing { background: var(--paper); }
.section-pricing .section-title { text-align: center; max-width: 720px; margin: 0 auto 3rem; }
.section-pricing .eyebrow { display: block; text-align: center; }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.tier-card {
  background: white;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
}
.tier-recommended {
  border-color: var(--accent);
  border-width: 2px;
  box-shadow: 0 8px 30px rgba(231,111,45,.12);
  transform: scale(1.03);
}
.tier-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: .3rem .9rem;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.tier-name { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--primary); margin-bottom: .5rem; }
.tier-price { font-family: var(--font-display); font-size: 2.8rem; font-weight: 800; color: var(--ink); line-height: 1; }
.tier-price small { font-size: 1rem; color: var(--muted); font-weight: 500; }
.tier-billing { font-size: .85rem; color: var(--muted); margin: .35rem 0 1.5rem; }
.tier-features { list-style: none; padding: 0; margin: 0 0 1.8rem; flex-grow: 1; }
.tier-features li { padding: .5rem 0; color: var(--ink-soft); font-size: .95rem; border-bottom: 1px solid var(--border); }
.tier-features li:last-child { border-bottom: none; }
.tier-features li::before { content: "✓ "; color: var(--accent); font-weight: 700; margin-right: .25rem; }
.pricing-microcopy { text-align: center; max-width: 700px; margin: 2.5rem auto 0; color: var(--muted); font-size: .9rem; line-height: 1.6; }

/* FAQ */
.section-faq { background: var(--cream); }
.section-faq .section-title { text-align: center; max-width: 720px; margin: 0 auto 3rem; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-list details {
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: .8rem;
  padding: 1.2rem 1.5rem;
  transition: box-shadow .15s ease;
}
.faq-list details[open] { box-shadow: 0 4px 16px rgba(26,31,46,.06); }
.faq-list summary {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--primary);
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--accent);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1;
  transition: transform .2s ease;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 1rem 0 0; color: var(--ink-soft); line-height: 1.6; }

/* CTA */
.section-cta {
  background: var(--primary);
  color: var(--cream);
  text-align: center;
}
.section-cta h2 { color: var(--cream); margin-bottom: 1rem; }
.section-cta p { font-size: 1.15rem; opacity: .85; margin-bottom: 2rem; }

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: var(--cream);
  padding: 3rem 2rem 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  font-size: .9rem;
}
.site-footer a { color: var(--accent-light); }
.footer-disclaimer {
  grid-column: 1 / -1;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(247,241,227,.15);
  font-size: .8rem;
  opacity: .65;
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; gap: 3rem; padding: 3rem 1.5rem 4rem; text-align: left; }
  .hero-card { order: -1; }
  .dossier-mock { transform: none; max-width: 380px; }
  .steps-row { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .tier-recommended { transform: none; }
  .site-header { padding: 1rem 1.2rem; flex-wrap: wrap; gap: 1rem; }
  .site-nav { gap: 1rem; font-size: .9rem; }
  section { padding: 3.5rem 0; }
  .site-footer { grid-template-columns: 1fr; text-align: center; }
}