/* Bcal Carbon — Trust-grade visual system */
:root {
  --forest: #1F4D2C;
  --forest-dark: #143018;
  --forest-light: #2d6b40;
  --cream: #FAF7F0;
  --cream-dark: #F0EBDD;
  --gold: #C5A572;
  --gold-dark: #A8895A;
  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --line: #E5DFD0;
  --white: #FFFFFF;
  --error: #B33A3A;
  --serif: 'Source Serif Pro', 'Source Serif 4', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;
  --shadow-sm: 0 1px 2px rgba(20,48,24,0.06);
  --shadow-md: 0 4px 16px rgba(20,48,24,0.08);
  --shadow-lg: 0 12px 40px rgba(20,48,24,0.12);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--forest-dark);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); margin-bottom: 0.75rem; }
h4 { font-size: 1.125rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; color: var(--ink-soft); }

a { color: var(--forest); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--gold-dark); }

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* NAV */
.nav {
  background: var(--cream);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background: rgba(250, 247, 240, 0.92);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.nav-logo {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--forest-dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-logo-mark {
  width: 28px; height: 28px;
  background: var(--forest);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1rem;
}
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-size: 0.95rem;
  color: var(--ink);
  font-weight: 500;
}
.nav-cta {
  background: var(--forest);
  color: var(--cream) !important;
  padding: 0.55rem 1.1rem;
  border-radius: 4px;
  font-weight: 600;
}
.nav-cta:hover { background: var(--forest-dark); color: var(--cream) !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; font-size: 1.5rem; color: var(--forest); }

/* HERO */
.hero {
  padding: 5rem 0 4rem;
  background: linear-gradient(180deg, var(--cream) 0%, var(--cream-dark) 100%);
  border-bottom: 1px solid var(--line);
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-dark);
  background: var(--cream);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--gold);
  border-radius: 2px;
  margin-bottom: 1.5rem;
}
.hero h1 {
  margin-bottom: 1.5rem;
  max-width: 900px;
}
.hero h1 .accent { color: var(--gold-dark); }
.hero-sub {
  font-size: 1.2rem;
  max-width: 680px;
  margin-bottom: 2rem;
  color: var(--ink-soft);
}
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 4px;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-align: center;
}
.btn-primary {
  background: var(--forest);
  color: var(--cream);
  border-color: var(--forest);
}
.btn-primary:hover { background: var(--forest-dark); color: var(--cream); }
.btn-secondary {
  background: transparent;
  color: var(--forest-dark);
  border-color: var(--forest);
}
.btn-secondary:hover { background: var(--forest); color: var(--cream); }
.btn-gold {
  background: var(--gold);
  color: var(--forest-dark);
  border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-dark); color: var(--cream); }
.btn-large { padding: 1rem 2rem; font-size: 1.05rem; }

/* SECTIONS */
section { padding: 5rem 0; }
.section-cream-dark { background: var(--cream-dark); }
.section-forest { background: var(--forest-dark); color: var(--cream); }
.section-forest h1, .section-forest h2, .section-forest h3 { color: var(--cream); }
.section-forest p { color: var(--cream-dark); }

.section-eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold-dark);
  margin-bottom: 0.75rem;
}

/* PROBLEM STATS */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.stat {
  background: var(--white);
  padding: 2rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  box-shadow: var(--shadow-sm);
}
.stat-number {
  font-family: var(--serif);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--forest-dark);
  margin-bottom: 0.5rem;
  line-height: 1;
}
.stat-label {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* HOW IT WORKS */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.step {
  background: var(--white);
  padding: 2rem 1.5rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  position: relative;
}
.step-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}
.step-icon {
  width: 48px; height: 48px;
  background: var(--cream-dark);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}
.step h4 { margin-bottom: 0.5rem; color: var(--forest-dark); }
.step p { font-size: 0.95rem; margin-bottom: 0; }

/* CALCULATOR */
.calc {
  background: var(--white);
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-top: 3rem;
}
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.calc-inputs {
  padding: 2.5rem;
  background: var(--cream);
  border-right: 1px solid var(--line);
}
.calc-output {
  padding: 2.5rem;
  background: var(--forest-dark);
  color: var(--cream);
}
.calc-output h3 { color: var(--cream); }
.field { margin-bottom: 1.5rem; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--forest-dark);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--sans);
  font-size: 1rem;
  background: var(--white);
  color: var(--ink);
  transition: border-color 0.15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--forest);
  box-shadow: 0 0 0 3px rgba(31,77,44,0.1);
}
.field-hint { font-size: 0.8rem; color: var(--ink-soft); margin-top: 0.3rem; }

.calc-output .out-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(250,247,240,0.12);
}
.calc-output .out-row:last-child { border-bottom: none; }
.calc-output .out-label { font-size: 0.9rem; color: var(--cream-dark); }
.calc-output .out-value {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--cream);
}
.calc-output .out-value.gold { color: var(--gold); }
.calc-output .out-row.total {
  margin-top: 1rem;
  padding-top: 1.25rem;
  border-top: 2px solid var(--gold);
  border-bottom: none;
}
.calc-output .out-row.total .out-label { font-size: 1rem; font-weight: 600; }
.calc-output .out-row.total .out-value { font-size: 1.6rem; }

/* PRICING */
.pricing-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}
.pricing-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 1rem;
}
.pricing-rate {
  font-family: var(--serif);
  font-size: 4rem;
  font-weight: 700;
  color: var(--forest-dark);
  line-height: 1;
}
.pricing-rate span { font-size: 1.5rem; color: var(--gold-dark); }
.pricing-sub { color: var(--ink-soft); margin: 0.75rem 0 1.5rem; }
.pricing-list { list-style: none; text-align: left; margin: 2rem 0; }
.pricing-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}
.pricing-list li::before {
  content: "✓";
  color: var(--forest);
  font-weight: 700;
}

.pricing-tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.tier {
  background: var(--white);
  padding: 1.75rem;
  border-radius: 6px;
  border: 1px solid var(--line);
}
.tier-rate {
  font-family: var(--serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--forest-dark);
}
.tier-band { font-size: 0.9rem; color: var(--ink-soft); margin-top: 0.25rem; }

/* TRUST */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.trust-card {
  background: var(--white);
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
}
.trust-card h4 {
  font-family: var(--sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-dark);
  margin-bottom: 0.75rem;
}
.trust-card p { font-size: 0.95rem; margin-bottom: 0; }

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
}
.faq-q {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--forest-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--gold-dark);
  font-weight: 300;
  transition: transform 0.2s;
}
details[open] .faq-q::after { content: "−"; }
.faq-a { padding-top: 1rem; color: var(--ink-soft); font-size: 0.98rem; line-height: 1.7; }

/* FINAL CTA */
.final-cta {
  text-align: center;
  padding: 6rem 1.5rem;
  background: var(--forest-dark);
  color: var(--cream);
}
.final-cta h2 { color: var(--cream); margin-bottom: 1rem; }
.final-cta p { color: var(--cream-dark); max-width: 600px; margin: 0 auto 2rem; font-size: 1.1rem; }

/* FOOTER */
footer {
  background: var(--forest-dark);
  color: var(--cream-dark);
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(197,165,114,0.2);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-grid h5 {
  color: var(--gold);
  font-family: var(--sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a { color: var(--cream-dark); }
.footer-grid a:hover { color: var(--gold); }
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(250,247,240,0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: rgba(250,247,240,0.6);
}

/* PROSE (long-form pages) */
.prose {
  max-width: 760px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.prose h1 { margin-bottom: 1rem; }
.prose h2 { margin-top: 3rem; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--line); }
.prose h3 { margin-top: 2rem; margin-bottom: 0.75rem; }
.prose p, .prose li { font-size: 1.05rem; line-height: 1.8; color: var(--ink); }
.prose ul, .prose ol { margin: 1rem 0 1rem 1.5rem; }
.prose li { margin-bottom: 0.5rem; }
.prose blockquote {
  border-left: 3px solid var(--gold);
  padding: 0.5rem 1.5rem;
  margin: 1.5rem 0;
  color: var(--ink-soft);
  font-style: italic;
  background: var(--cream-dark);
}
.prose code {
  font-family: var(--mono);
  background: var(--cream-dark);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-size: 0.9em;
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}
.prose th, .prose td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
}
.prose th {
  background: var(--cream-dark);
  font-weight: 600;
  font-family: var(--sans);
  color: var(--forest-dark);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* PATHWAY CARDS */
.pathway-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.pathway-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2rem;
  border-top: 3px solid var(--forest);
}
.pathway-card h3 { margin-bottom: 0.5rem; }
.pathway-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}
.pathway-tag {
  display: inline-block;
  background: var(--cream-dark);
  color: var(--forest-dark);
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
}
.pathway-rows { margin-top: 1rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.pathway-row {
  display: flex;
  justify-content: space-between;
  padding: 0.4rem 0;
  font-size: 0.9rem;
}
.pathway-row .label { color: var(--ink-soft); }
.pathway-row .val { font-family: var(--mono); font-weight: 600; color: var(--forest-dark); }

/* ONBOARDING */
.onboard-wrap {
  max-width: 720px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}
.progress {
  display: flex;
  align-items: center;
  margin-bottom: 3rem;
}
.progress-step {
  flex: 1;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-soft);
  position: relative;
}
.progress-step .dot {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.5rem;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--ink-soft);
  position: relative;
  z-index: 2;
}
.progress-step.active .dot { background: var(--forest); border-color: var(--forest); color: var(--cream); }
.progress-step.done .dot { background: var(--gold); border-color: var(--gold); color: var(--forest-dark); }
.progress-step.active { color: var(--forest-dark); font-weight: 600; }
.progress-line {
  flex: 0 0 auto;
  height: 2px;
  background: var(--line);
  width: 40px;
  margin: 0 -8px;
  position: relative;
  top: -14px;
  z-index: 1;
}
.progress-step.done + .progress-line { background: var(--gold); }

.step-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}
.step-card h2 { margin-bottom: 0.25rem; }
.step-card .step-card-sub { color: var(--ink-soft); margin-bottom: 2rem; }
.form-actions {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.radio-group { display: flex; flex-direction: column; gap: 0.75rem; }
.radio-card {
  display: flex;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  background: var(--cream);
  transition: all 0.15s;
}
.radio-card:hover { border-color: var(--forest); }
.radio-card input { margin-top: 0.25rem; }
.radio-card .rc-title { font-weight: 600; color: var(--forest-dark); }
.radio-card .rc-sub { font-size: 0.9rem; color: var(--ink-soft); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.checklist { list-style: none; margin: 1rem 0; }
.checklist li {
  padding: 0.5rem 0 0.5rem 1.75rem;
  position: relative;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--forest);
  font-weight: 700;
}

.review-block {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
.review-block h4 { margin-bottom: 0.5rem; font-family: var(--sans); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gold-dark); }
.review-block dl { display: grid; grid-template-columns: 140px 1fr; gap: 0.4rem 1rem; font-size: 0.95rem; }
.review-block dt { color: var(--ink-soft); }
.review-block dd { color: var(--ink); font-weight: 500; }

/* RESPONSIVE */
@media (max-width: 800px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--cream);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 1rem;
  }
  .nav-toggle { display: block; }
  .calc-grid { grid-template-columns: 1fr; }
  .calc-inputs { border-right: none; border-bottom: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 3.5rem 0; }
  .hero { padding: 3rem 0 2.5rem; }
  .field-row { grid-template-columns: 1fr; }
  .progress-step .label { display: none; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .stat-number { font-size: 2.25rem; }
  .pricing-rate { font-size: 3rem; }
}