/* ============================================================
   ClarityCCRN — Editorial Light Design System
   Palette: cream #f8f5f0 · white cards · teal #0f766e · charcoal
   Type: Fraunces (serif) · Inter (body) · JetBrains Mono (data)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,600&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:          #f8f5f0;
  --surface:     #ffffff;
  --surface-2:   #f4f1eb;
  --teal:        #0f766e;
  --teal-mid:    #14877e;
  --teal-light:  #e0f2f0;
  --teal-pale:   #f0faf9;
  --indigo:      #4f46e5;
  --indigo-light:#ede9fe;
  --amber:       #d97706;
  --amber-light: #fef3c7;
  --dark:        #18181b;
  --charcoal:    #27272a;
  --muted:       #71717a;
  --muted-light: #a1a1aa;
  --border:      #e4e0d8;
  --border-light:#eeebe4;
  --radius-sm:   8px;
  --radius:      14px;
  --radius-lg:   22px;
  --radius-xl:   32px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow:      0 4px 16px rgba(24,24,27,0.06), 0 1px 4px rgba(24,24,27,0.04);
  --shadow-lg:   0 12px 40px rgba(24,24,27,0.08), 0 4px 12px rgba(24,24,27,0.04);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--dark);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--dark);
}

p { line-height: 1.72; color: var(--charcoal); }

code, .mono, [class*="data-"] {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.875em;
}

/* ── Layout shell ───────────────────────────────────────── */
.page-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Topbar / Navigation ────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-lockup .brand-name {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--dark);
}

.brand-lockup .brand-sub {
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-top: 1px;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.topnav a {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}

.topnav a:hover { color: var(--dark); background: var(--border-light); }
.topnav a.active { color: var(--teal); }

/* ── Buttons ────────────────────────────────────────────── */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 100px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
  line-height: 1;
  text-decoration: none;
}

.button.primary {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.button.primary:hover {
  background: #0c6258;
  border-color: #0c6258;
  box-shadow: 0 4px 16px rgba(15,118,110,0.28);
}

.button.ghost {
  background: transparent;
  color: var(--dark);
  border-color: var(--border);
}

.button.ghost:hover {
  border-color: var(--teal);
  color: var(--teal);
  background: var(--teal-pale);
}

.button.subtle {
  background: var(--surface-2);
  color: var(--charcoal);
  border-color: var(--border);
}

.button.subtle:hover {
  background: var(--border);
  color: var(--dark);
}

.button.small {
  font-size: 0.8rem;
  padding: 7px 16px;
}

/* ── Route strip ────────────────────────────────────────── */
.route-strip {
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
}

.route-strip::-webkit-scrollbar { display: none; }

.route-strip-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  gap: 0;
  align-items: center;
}

.route-strip a {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  padding: 10px 16px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.route-strip a:hover { color: var(--dark); }
.route-strip a.active { color: var(--teal); border-bottom-color: var(--teal); }

/* ── Intro editorial strip ──────────────────────────────── */
.intro-strip-editorial {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.intro-strip-editorial .strip-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.intro-strip-editorial .strip-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--teal);
  background: var(--teal-pale);
  border: 1px solid rgba(15,118,110,0.18);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ── Frontpage hero ─────────────────────────────────────── */
.frontpage-hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 72px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

@media (max-width: 860px) {
  .frontpage-hero {
    grid-template-columns: 1fr;
    padding: 48px 20px 56px;
    gap: 40px;
  }
}

.frontpage-hero-copy .eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
  display: block;
}

.frontpage-hero-copy h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(3.2rem, 7vw, 6rem);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.03em;
  color: var(--dark);
  max-width: 14ch;
}

.frontpage-hero-copy h1 em {
  font-style: italic;
  color: var(--teal);
}

.frontpage-hero-copy .hero-body {
  margin-top: 20px;
  font-size: 1.05rem;
  line-height: 1.72;
  color: var(--muted);
  max-width: 38ch;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Hero ambient graphic ───────────────────────────────── */
.hero-ambient-graphic {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1.05;
  max-width: 480px;
  justify-self: end;
}

@media (max-width: 860px) {
  .hero-ambient-graphic { justify-self: center; max-width: 360px; }
}

.hero-ambient-grid,
.hero-ambient-arc,
.hero-ambient-wave,
.hero-ambient-trace {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-ambient-node {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  opacity: 0.5;
}

/* Linework anatomy elements */
.linework-grid,
.linework-frame,
.linework-perfusion,
.linework-flow {
  stroke: rgba(15,118,110,0.18);
  fill: none;
  stroke-width: 1.2;
}

.linework-node {
  fill: var(--teal-pale);
  stroke: rgba(15,118,110,0.35);
  stroke-width: 1;
}

/* ── Frontpage lead section ─────────────────────────────── */
.frontpage-lead {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px;
}

.frontpage-lead-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 860px) {
  .frontpage-lead-inner { grid-template-columns: 1fr; gap: 40px; }
}

.frontpage-lead-copy .section-heading {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--dark);
}

.frontpage-lead-copy p {
  margin-top: 16px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 36ch;
}

/* ── Feature stack ──────────────────────────────────────── */
.frontpage-feature-stack {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.frontpage-feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.frontpage-feature-card:hover {
  border-color: rgba(15,118,110,0.3);
  box-shadow: var(--shadow-sm);
}

.frontpage-feature-card .eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
  display: block;
  margin-bottom: 6px;
}

.frontpage-feature-card h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--dark);
}

.frontpage-feature-card p {
  margin-top: 6px;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ── Utility classes ────────────────────────────────────── */
.eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
}

.eyebrow.teal { color: var(--teal); }

.muted { color: var(--muted); }

.section-heading {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--dark);
}

/* ── Glass card (light, editorial) ──────────────────────── */
.glass-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.glass-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(15,118,110,0.2);
}

/* ── Sample showcase ────────────────────────────────────── */
.sample-showcase {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

@media (max-width: 860px) {
  .sample-showcase { grid-template-columns: 1fr; gap: 40px; }
}

.sample-details {
  position: sticky;
  top: 88px;
}

.sample-details .section-heading { margin-bottom: 16px; }
.sample-details p { color: var(--muted); font-size: 0.95rem; line-height: 1.75; }
.sample-details .button { margin-top: 24px; }

/* ── Proof flow ─────────────────────────────────────────── */
.proof-flow {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 72px 24px;
}

.proof-flow-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.proof-flow-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 720px) {
  .proof-flow-grid { grid-template-columns: 1fr; }
}

.proof-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.proof-item .proof-number {
  font-family: 'Fraunces', serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: -0.04em;
  line-height: 1;
}

.proof-item .proof-label {
  margin-top: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark);
}

.proof-item p {
  margin-top: 6px;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Quiz question UI ───────────────────────────────────── */
.quiz-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.quiz-stem {
  padding: 28px 28px 0;
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.08rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--dark);
}

.quiz-options {
  padding: 20px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--dark);
  text-align: left;
  width: 100%;
  font-family: 'Inter', sans-serif;
}

.quiz-option:hover {
  border-color: var(--teal);
  background: var(--teal-pale);
}

.quiz-option.selected {
  border-color: var(--teal);
  background: var(--teal-pale);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.1);
}

.quiz-option.correct {
  border-color: #16a34a;
  background: #f0fdf4;
  color: #14532d;
}

.quiz-option.incorrect {
  border-color: #dc2626;
  background: #fef2f2;
  color: #7f1d1d;
}

.quiz-option-letter {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1.5px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  opacity: 0.6;
  margin-top: 1px;
}

.quiz-submit {
  margin: 0 28px 24px;
}

/* ── Quiz feedback / rationale ──────────────────────────── */
.quiz-feedback {
  margin: 0 28px 28px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.quiz-feedback .feedback-verdict {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.quiz-feedback .feedback-verdict.correct {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.quiz-feedback .feedback-verdict.incorrect {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.quiz-feedback .feedback-rationale {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--charcoal);
}

.quiz-feedback .feedback-takeaway {
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--teal-pale);
  border-left: 3px solid var(--teal);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dark);
  line-height: 1.6;
}

/* ── Offer grid / pricing ───────────────────────────────── */
.offer-section {
  padding: 80px 24px;
}

.offer-section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.offer-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

@media (max-width: 900px) {
  .offer-grid { grid-template-columns: 1fr; max-width: 440px; }
}

.offer-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.offer-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(15,118,110,0.2);
}

.offer-card.featured {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.1), var(--shadow-lg);
  position: relative;
}

.offer-card.featured::before {
  content: 'Most popular';
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
}

.offer-card .offer-tier {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.offer-card .offer-price {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--dark);
  line-height: 1;
}

.offer-card .offer-price span {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
}

.offer-card .offer-desc {
  margin-top: 10px;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

.offer-card .offer-features {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.offer-card .offer-feature {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--charcoal);
  line-height: 1.45;
}

.offer-card .offer-feature::before {
  content: '';
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--teal-light);
  border: 1.5px solid var(--teal);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8' fill='none'%3E%3Cpath d='M1.5 4l2 2 3-3' stroke='%230f766e' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.offer-card .offer-cta {
  margin-top: 22px;
  width: 100%;
  text-align: center;
}

/* ── Form note ──────────────────────────────────────────── */
.form-note {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.55;
}

.form-note a { color: var(--teal); }
.form-note a:hover { text-decoration: underline; }

/* ── Input / form elements ──────────────────────────────── */
.input {
  width: 100%;
  padding: 11px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--dark);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
}

.input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.12);
}

.input::placeholder { color: var(--muted-light); }

.select {
  width: 100%;
  padding: 11px 40px 11px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--dark);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15,118,110,0.12);
}

/* ── Signup / CTA section ───────────────────────────────── */
.signup-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.signup-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 860px) {
  .signup-card { grid-template-columns: 1fr; gap: 32px; padding: 32px 24px; }
}

.signup-copy .section-heading { margin-bottom: 12px; }
.signup-copy p { color: var(--muted); font-size: 0.95rem; }

.signup-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Site footer ────────────────────────────────────────── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 48px 24px;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.site-footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}

@media (max-width: 860px) {
  .site-footer-top { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 520px) {
  .site-footer-top { grid-template-columns: 1fr; }
}

.footer-brand-copy {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.65;
  max-width: 28ch;
  margin-top: 8px;
}

.footer-col-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.footer-col-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-links a {
  font-size: 0.875rem;
  color: var(--charcoal);
  transition: color 0.15s;
}

.footer-col-links a:hover { color: var(--teal); }

.site-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  color: var(--muted);
}

/* ── Progress bar ───────────────────────────────────────── */
.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 100px;
  transition: width 0.4s ease;
}

/* ── Badge / chip ───────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--charcoal);
}

.badge.teal { background: var(--teal-pale); border-color: rgba(15,118,110,0.25); color: var(--teal); }
.badge.amber { background: var(--amber-light); border-color: rgba(217,119,6,0.25); color: var(--amber); }
.badge.indigo { background: var(--indigo-light); border-color: rgba(79,70,229,0.25); color: var(--indigo); }

/* ── Score ring ─────────────────────────────────────────── */
.score-ring-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 24px;
}

/* ── Question bank card ─────────────────────────────────── */
.qbank-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.qbank-card:hover {
  border-color: rgba(15,118,110,0.3);
  box-shadow: var(--shadow);
}

.qbank-card .qbank-exam {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 10px;
}

.qbank-card .qbank-cat {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

/* ── Responsive utilities ───────────────────────────────── */
@media (max-width: 640px) {
  .hide-mobile { display: none !important; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .button { width: 100%; justify-content: center; }
  .signup-card { padding: 24px 20px; }
  .offer-card.featured::before { font-size: 0.62rem; }
}

/* ── Animations ─────────────────────────────────────────── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-up { animation: fade-up 0.5s ease forwards; }

@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.6; }
}

.animate-pulse-soft { animation: pulse-soft 2.4s ease infinite; }

/* ── Print ──────────────────────────────────────────────── */
@media print {
  .topbar, .site-footer, .hero-actions { display: none; }
  body { background: #fff; color: #000; }
}

/* === GAMIFICATION LAYER === */
#game-bar { display:flex; align-items:center; gap:16px; padding:8px 0; margin-bottom:12px; }
#streak-counter { font-family:'JetBrains Mono',monospace; font-size:14px; color:#8b949e; transition:color .3s; }
#streak-counter.streak-hot { color:#f59e0b; text-shadow:0 0 12px #f59e0b; }
#streak-counter.streak-fire { color:#ef4444; animation:streakPulse .6s ease infinite alternate; }
#xp-bar-wrap { flex:1; }
#level-label { font-size:11px; color:#8b949e; text-transform:uppercase; letter-spacing:.08em; margin-bottom:4px; display:block; }
#xp-bar-fill { height:4px; border-radius:2px; background:linear-gradient(90deg,#00d4ff,#7c3aed); transition:width .4s ease; }
.diff-chip { font-size:10px; font-family:'JetBrains Mono',monospace; padding:2px 8px; border-radius:10px; text-transform:uppercase; letter-spacing:.06em; }
.diff-chip.diff-easy { background:rgba(16,185,129,.15); color:#10b981; border:1px solid rgba(16,185,129,.3); }
.diff-chip.diff-medium { background:rgba(245,158,11,.15); color:#f59e0b; border:1px solid rgba(245,158,11,.3); }
.diff-chip.diff-hard { background:rgba(239,68,68,.15); color:#ef4444; border:1px solid rgba(239,68,68,.3); }
.badge-card { padding:24px; border-radius:16px; text-align:center; margin-top:24px; background:rgba(255,255,255,.04); }
.badge-card.gold { border:2px solid #f59e0b; box-shadow:0 0 24px rgba(245,158,11,.3); }
.badge-card.cyan { border:2px solid #00d4ff; box-shadow:0 0 24px rgba(0,212,255,.3); }
.badge-card.green { border:2px solid #10b981; box-shadow:0 0 16px rgba(16,185,129,.2); }
.badge-card.amber { border:1px solid rgba(245,158,11,.4); }
.badge-icon { font-size:48px; display:block; margin-bottom:8px; }
.badge-title { font-size:20px; font-weight:700; color:#f0f6fc; }
.badge-score { font-family:'JetBrains Mono',monospace; font-size:14px; color:#8b949e; margin-top:4px; }
@keyframes streakPulse { from { text-shadow:0 0 8px #ef4444; } to { text-shadow:0 0 20px #ef4444; } }
@keyframes levelUp { 0%,100% { box-shadow:none; } 50% { box-shadow:0 0 20px rgba(0,212,255,.8); } }

/* ── Hero ECG waveform decorative overlay ───────────────────────────────── */
.hero-ecg-line {
  position: absolute; bottom: 0; left: 0; width: 100%; height: 80px;
  color: rgba(15,118,110,0.12); pointer-events: none;
}
.hero-ecg-line-nclex {
  color: rgba(79,70,229,0.12);
}

/* === RESPONSIVE === */

/* ── 768px: Tablet / large mobile ──────────────────────── */
@media (max-width: 768px) {
  /* Navigation — hide links, keep brand */
  .topnav { display: none; }

  /* Hero headline — scale down from 3.2rem minimum */
  .frontpage-hero-copy h1 {
    font-size: clamp(2rem, 9vw, 3.5rem);
  }

  /* Quiz panel — reduce horizontal padding */
  .quiz-stem     { padding: 20px 20px 0; font-size: 1rem; }
  .quiz-options  { padding: 14px 20px 18px; }
  .quiz-submit   { margin: 0 20px 18px; }
  .quiz-feedback { margin: 0 20px 20px; }

  /* Game bar — allow wrapping */
  #game-bar { flex-wrap: wrap; gap: 10px; }

  /* Layout */
  .page-wrap    { padding: 0 16px; }
  .topbar-inner { padding: 0 16px; gap: 16px; }
}

/* ── 480px: Small phone ─────────────────────────────────── */
@media (max-width: 480px) {
  /* Hero */
  .frontpage-hero-copy h1 {
    font-size: clamp(1.8rem, 10vw, 2.4rem);
  }
  .frontpage-hero { padding: 32px 16px 40px; }

  /* Game bar — stack vertically */
  #game-bar { flex-direction: column; align-items: flex-start; gap: 8px; }
  #xp-bar-wrap { width: 100%; }

  /* Quiz panel — tightest padding */
  .quiz-stem     { padding: 16px 16px 0; font-size: 0.95rem; }
  .quiz-options  { padding: 12px 16px 16px; gap: 8px; }
  .quiz-submit   { margin: 0 16px 16px; }
  .quiz-feedback { margin: 0 16px 16px; }

  /* Offer / pricing cards */
  .offer-card    { padding: 22px 20px; }
  .offer-section { padding: 48px 16px; }

  /* Sections */
  .frontpage-lead  { padding: 48px 16px; }
  .proof-flow      { padding: 48px 16px; }
  .signup-section  { padding: 0 16px 48px; }

  /* Body text floor */
  body { font-size: 16px; }
}

/* ============================================================
   Conversion additions — trust bar, testimonials, FAQ, urgency
   ============================================================ */

/* ── Trust Bar ──────────────────────────────────────────────── */
.trust-bar {
  background: #f1f5f9;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
  padding: 12px 24px;
  overflow-x: auto;
  scrollbar-width: none;
}
.trust-bar::-webkit-scrollbar { display: none; }

.trust-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  row-gap: 8px;
}

.trust-bar-item {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--charcoal);
  padding: 4px 18px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 5px;
}

.trust-check {
  color: var(--teal);
  font-weight: 700;
}

.trust-bar-divider {
  width: 1px;
  height: 18px;
  background: #cbd5e1;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .trust-bar-divider { display: none; }
  .trust-bar-item { padding: 2px 10px; }
}

/* ── Testimonials ───────────────────────────────────────────── */
.testimonials-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

@media (max-width: 860px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px;
}

.testimonial-quote {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--charcoal);
  flex: 1;
}

.testimonial-quote::before {
  content: '\201C';
  font-size: 2rem;
  line-height: 0;
  vertical-align: -0.5rem;
  color: var(--teal);
  margin-right: 2px;
  font-style: normal;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 3px;
  border-top: 1px solid var(--border-light);
  padding-top: 14px;
}

.testimonial-name {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--dark);
}

.testimonial-cred {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: 0.02em;
}

/* ── FAQ Accordion ──────────────────────────────────────────── */
.faq-section {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px;
}

.faq-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child { border-bottom: none; }

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: var(--surface);
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
  transition: background 0.15s;
}

.faq-trigger:hover { background: var(--surface-2); }

.faq-item--open .faq-trigger {
  background: var(--teal-pale);
  color: var(--teal);
}

.faq-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  position: relative;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  opacity: 0.5;
  transition: transform 0.2s, opacity 0.2s;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::before { width: 8px; height: 1.5px; }
.faq-icon::after  { width: 1.5px; height: 8px; transition: transform 0.2s; }

.faq-item--open .faq-icon { opacity: 1; }
.faq-item--open .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }

.faq-panel {
  padding: 0 24px 20px;
  background: var(--surface);
}
.faq-item--open .faq-panel { background: var(--teal-pale); }

.faq-panel p {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--charcoal);
  max-width: 65ch;
}

/* ── Urgency Sticky Bar ─────────────────────────────────────── */
.urgency-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px 24px;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.18);
  flex-wrap: wrap;
}

.urgency-bar--visible {
  transform: translateY(0);
}

.urgency-bar-text {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
}

.urgency-bar-cta {
  background: var(--teal) !important;
  border-color: var(--teal) !important;
  color: #fff !important;
  font-size: 0.8rem !important;
  padding: 8px 18px !important;
  flex-shrink: 0;
}
.urgency-bar-cta:hover {
  background: var(--teal-mid) !important;
  border-color: var(--teal-mid) !important;
}

.urgency-bar-close {
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  margin-left: auto;
  flex-shrink: 0;
  transition: color 0.15s;
}
.urgency-bar-close:hover { color: #fff; }

@media (max-width: 600px) {
  .urgency-bar { gap: 10px; padding: 10px 16px; }
  .urgency-bar-text { font-size: 0.8rem; }
  .urgency-bar-close { margin-left: 0; }
}