/* ═══════════════════════════════════════════════════════
   Human Velocity Assessment — UCognify
   Dark theme, clean, feels like a real product
   ═══════════════════════════════════════════════════════ */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-input: #0d1321;
  --border: #2a3650;
  --border-focus: #4f8aff;
  --text-primary: #e8edf5;
  --text-secondary: #8899b4;
  --text-muted: #5a6a85;
  --accent: #4f8aff;
  --accent-glow: rgba(79, 138, 255, 0.25);
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --purple: #a78bfa;
  --teal: #2dd4bf;

  /* Score band colors (7-band 1500-point scale) */
  --band-unaware: #94a3b8;
  --band-reactive: #f87171;
  --band-assisted: #fb923c;
  --band-directed: #fbbf24;
  --band-strategic: #4f8aff;
  --band-advanced: #a78bfa;
  --band-high-velocity: #34d399;

  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Typography ─── */

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--purple), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Screen Container ─── */

.screen {
  animation: fadeIn 0.4s ease-out;
  flex: 1;
  display: flex;
  flex-direction: column;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Welcome Screen ─── */

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 2rem;
  flex: 1;
}

.welcome .logo {
  font-size: 3.5rem;
  margin-bottom: -0.5rem;
}

.welcome p {
  max-width: 520px;
  font-size: 1.1rem;
}

.welcome .meta {
  display: flex;
  gap: 2rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.welcome .meta span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ─── Buttons ─── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
  background: #3d7ae8;
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--bg-secondary);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  border-radius: var(--radius);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ─── Progress Bar ─── */

.progress-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.progress-steps {
  display: flex;
  gap: 0.5rem;
  flex: 1;
}

.progress-step {
  height: 4px;
  flex: 1;
  border-radius: 2px;
  background: var(--border);
  transition: var(--transition);
}

.progress-step.completed { background: var(--accent); }
.progress-step.active { background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }

.progress-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 500;
}

/* ─── Section Header ─── */

.section-header {
  margin-bottom: 2rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(79, 138, 255, 0.2);
}

.section-header h2 { margin-bottom: 0.5rem; }
.section-header p { font-size: 0.95rem; }

/* ─── Card ─── */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.card-scenario {
  background: linear-gradient(135deg, rgba(79, 138, 255, 0.06), rgba(167, 139, 250, 0.04));
  border-color: rgba(79, 138, 255, 0.15);
}

.card h3 {
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  font-size: 1rem;
}

.card p {
  font-size: 0.925rem;
}

/* ─── Scenario Block ─── */

.scenario-text {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  margin: 1rem 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent);
}

/* ─── Form Elements ─── */

textarea, input[type="text"] {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.925rem;
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--transition);
}

textarea:focus, input[type="text"]:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea { min-height: 120px; }

.input-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.input-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

.form-group { margin-bottom: 1.25rem; }

/* ─── Multiple Choice ─── */

.choices {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.choice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.choice:hover {
  border-color: var(--accent);
  background: rgba(79, 138, 255, 0.05);
}

.choice.selected {
  border-color: var(--accent);
  background: rgba(79, 138, 255, 0.08);
  color: var(--text-primary);
  box-shadow: 0 0 12px var(--accent-glow);
}

.choice-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  min-width: 22px;
  border-radius: 50%;
  border: 2px solid var(--border);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  margin-top: 1px;
}

.choice.selected .choice-marker {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

/* ─── Timer ─── */

.timer {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-mono);
  background: rgba(251, 191, 36, 0.1);
  color: var(--warning);
  border: 1px solid rgba(251, 191, 36, 0.2);
}

.timer.urgent {
  background: rgba(248, 113, 113, 0.1);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.2);
  animation: pulse 1s ease-in-out infinite;
}

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

/* ─── Flawed Output Block ─── */

.flawed-output {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  margin: 1rem 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
  position: relative;
}

.flawed-output::before {
  content: 'AI-GENERATED OUTPUT';
  position: absolute;
  top: -0.5rem;
  left: 1rem;
  background: var(--bg-primary);
  padding: 0 0.5rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

/* ─── Footer Nav ─── */

.section-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 2rem;
}

/* ─── Results ─── */

.results-hero {
  text-align: center;
  padding: 2rem 0 3rem;
}

.score-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 1.5rem auto;
  border: 3px solid var(--border);
  position: relative;
  transition: var(--transition);
}

.score-circle .score-value {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}

.score-circle .score-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

.score-circle.band-unaware    { border-color: var(--band-unaware);    --band-color: var(--band-unaware); }
.score-circle.band-reactive   { border-color: var(--band-reactive);   --band-color: var(--band-reactive); }
.score-circle.band-assisted   { border-color: var(--band-assisted);   --band-color: var(--band-assisted); }
.score-circle.band-directed   { border-color: var(--band-directed);   --band-color: var(--band-directed); }
.score-circle.band-strategic  { border-color: var(--band-strategic);  --band-color: var(--band-strategic); }
.score-circle.band-advanced   { border-color: var(--band-advanced);   --band-color: var(--band-advanced); }
.score-circle.band-hv         { border-color: var(--band-high-velocity); --band-color: var(--band-high-velocity); }

.score-circle .score-value { color: var(--band-color, var(--text-primary)); }
.score-circle .score-label { color: var(--band-color, var(--text-muted)); }

.band-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0.5rem;
}

/* ─── Radar Chart ─── */

.radar-container {
  display: flex;
  justify-content: center;
  margin: 2rem 0;
}

.radar-container canvas {
  max-width: 400px;
  max-height: 400px;
}

/* ─── Dimension Bars ─── */

.dimension-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(42, 54, 80, 0.5);
}

.dimension-row:last-child { border-bottom: none; }

.dimension-name {
  width: 160px;
  min-width: 160px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.dimension-bar-track {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: var(--bg-input);
  overflow: hidden;
}

/* ─── Adaptive Learning Path ─── */
.archetype-card {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem;
  background: rgba(167, 139, 250, 0.06);
  border: 1px solid rgba(167, 139, 250, 0.15);
  border-radius: var(--radius);
  margin-top: 1rem;
}
.archetype-icon { font-size: 2.5rem; line-height: 1; }
.archetype-name { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.35rem; }
.archetype-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.5; margin-bottom: 0.5rem; }
.archetype-pillars { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.pillar-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}
.pillar-badge.strength { background: rgba(52, 211, 153, 0.12); color: #34d399; }
.pillar-badge.gap { background: rgba(251, 191, 36, 0.12); color: #fbbf24; }

.path-step {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  overflow: hidden;
  transition: border-color 0.2s;
}
.path-step:hover { border-color: var(--accent); }
.path-step-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  user-select: none;
}
.path-step-number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #0a0e17;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}
.path-step-info { flex: 1; }
.path-step-dim { font-weight: 600; font-size: 0.9rem; }
.path-step-icon { margin-right: 0.35rem; }
.path-step-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}
.path-step-toggle { font-size: 0.9rem; color: var(--text-muted); }
.content-type-tag {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(79, 138, 255, 0.1);
  color: var(--accent);
}
.path-step-body { padding: 0 1rem 0.75rem 3.5rem; }
.path-step-reason { font-size: 0.8rem; color: var(--text-secondary); }

.micro-exercise-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}
.micro-exercise-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.micro-exercise-title { font-weight: 600; font-size: 0.9rem; }
.micro-exercise-time { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.15rem; }
.micro-exercise-desc { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.5; }
.micro-exercise-tests { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.35rem; font-style: italic; }

@media (max-width: 600px) {
  .archetype-card { flex-direction: column; gap: 0.75rem; }
  .path-step-header { flex-wrap: wrap; }
  .micro-exercise-header { flex-direction: column; }
}

.dimension-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--accent);
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.dimension-score {
  width: 40px;
  min-width: 40px;
  text-align: right;
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* ─── Recommendation Cards ─── */

.rec-card {
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.rec-card .rec-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.rec-card .rec-body {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.rec-card.strength {
  border-left: 3px solid var(--success);
}

.rec-card.growth {
  border-left: 3px solid var(--warning);
}

/* ─── Top Nav ─── */

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.btn-sm {
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
}

.back-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.25rem 0;
  margin-bottom: 1.5rem;
  transition: color var(--transition);
}

.back-link:hover { color: var(--accent); }

/* ─── Landing Page ─── */

.landing-screen {
  padding-top: 0;
}

.hero {
  text-align: center;
  padding: 4rem 0 3rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(79, 138, 255, 0.2);
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 0;
}

.hero-sub {
  max-width: 540px;
  margin: 1.25rem auto 0;
  font-size: 1.1rem;
}

/* ─── Pathway Cards ─── */

.pathway-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.pathway-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.pathway-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}

.pathway-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.pathway-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.pathway-card p {
  font-size: 0.9rem;
  flex: 1;
}

.pathway-meta {
  display: flex;
  gap: 1.25rem;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pathway-cta {
  margin-top: 1.25rem;
  font-weight: 600;
  color: var(--accent);
  font-size: 0.9rem;
}

/* ─── Landing Features ─── */

.landing-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.feature {
  padding: 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid rgba(42, 54, 80, 0.5);
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.feature h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.feature p {
  font-size: 0.825rem;
  color: var(--text-muted);
}

.landing-footer {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ─── Intake ─── */

.intake-header {
  margin-bottom: 2rem;
}

.intake-header h2 { margin-top: 0.5rem; }

/* ─── Dashboard ─── */

.dashboard-header {
  margin-bottom: 2rem;
}

.dashboard-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  font-weight: 500;
}

/* ─── Course Catalog ─── */

.course-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.course-card:hover {
  border-color: var(--course-color, var(--accent));
  box-shadow: 0 0 20px rgba(79, 138, 255, 0.15);
  transform: translateY(-2px);
}

.course-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.course-level-badge {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(79, 138, 255, 0.1);
  color: var(--course-color, var(--accent));
  border: 1px solid rgba(79, 138, 255, 0.15);
}

.course-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.course-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.course-card-meta {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

/* ─── Course Detail ─── */

.course-hero {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.outcome-list {
  list-style: none;
  padding: 0.5rem 0 0;
}

.outcome-list li {
  padding: 0.4rem 0 0.4rem 1.5rem;
  position: relative;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.outcome-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

/* ─── Lesson List ─── */

.lesson-list {
  padding-top: 0.5rem;
}

.lesson-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 0.5rem;
  border-bottom: 1px solid rgba(42, 54, 80, 0.4);
  cursor: pointer;
  transition: var(--transition);
  border-radius: var(--radius-sm);
}

.lesson-row:hover {
  background: rgba(79, 138, 255, 0.05);
}

.lesson-row:last-child { border-bottom: none; }

.lesson-row.completed { opacity: 0.7; }
.lesson-row.completed .lesson-number { background: var(--success); color: #fff; border-color: var(--success); }

.lesson-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 50%;
  border: 2px solid var(--border);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.lesson-info { flex: 1; }

.lesson-title {
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--text-primary);
}

.lesson-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.lesson-duration {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ─── Lesson Viewer ─── */

.lesson-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lesson-nav .back-link { margin-bottom: 0; }

.lesson-body {
  margin-bottom: 1.5rem;
}

.lesson-paragraph {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.concept-card {
  margin-bottom: 1rem;
}

.concept-card h3 {
  color: var(--text-primary);
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}

.concept-body p {
  font-size: 0.925rem;
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.exercise-card {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.04), transparent);
  border-color: rgba(52, 211, 153, 0.15);
  margin-top: 1.5rem;
}

.exercise-header h3 {
  color: var(--text-primary);
  margin-top: 0.75rem;
}

/* ─── Responsive ─── */

@media (max-width: 600px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.25rem; }
  #app { padding: 1.25rem 1rem; }
  .dimension-name { width: 100px; min-width: 100px; font-size: 0.8rem; }
  .welcome .meta { flex-direction: column; gap: 0.5rem; }
  .score-circle { width: 150px; height: 150px; }
  .score-circle .score-value { font-size: 2rem; }
  .pathway-cards { grid-template-columns: 1fr; }
  .landing-features { grid-template-columns: 1fr; }
  .course-grid { grid-template-columns: 1fr; }
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 2.25rem; }
  .hero { padding: 2.5rem 0 2rem; }
}