/* ============================================
   Assessment Redesign Framework — Course
   Stylesheet (extends main design system)
   ============================================ */

/* Import design tokens from parent */
:root {
  --color-primary: #1e3a5f;
  --color-primary-light: #2c5282;
  --color-primary-dark: #132842;
  --color-accent: #b8860b;
  --color-accent-light: #d4a437;
  --color-accent-dark: #9a7009;
  --color-track1: #2563eb;
  --color-track1-bg: #eff6ff;
  --color-track1-border: #bfdbfe;
  --color-track2: #16a34a;
  --color-track2-bg: #f0fdf4;
  --color-track2-border: #bbf7d0;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --max-width: 1200px;
  --content-width: 800px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: 150ms ease;
  /* Course-specific */
  --color-feedback: #f0f7ff;
  --color-feedback-border: #93c5fd;
  --color-correct: #16a34a;
  --color-correct-bg: #f0fdf4;
  --color-incorrect: #dc2626;
  --color-incorrect-bg: #fef2f2;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-accent); }

h1, h2, h3, h4 {
  line-height: 1.3;
  color: var(--color-primary);
  font-weight: 700;
}
h1 { font-size: 2.25rem; letter-spacing: -0.02em; }
h2 {
  font-size: 1.75rem;
  letter-spacing: -0.01em;
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}
h3 { font-size: 1.35rem; margin-top: var(--space-2xl); margin-bottom: var(--space-md); }
h4 { font-size: 1.1rem; margin-top: var(--space-xl); margin-bottom: var(--space-sm); }
p { margin-bottom: var(--space-md); }
ul, ol { margin-bottom: var(--space-md); padding-left: var(--space-xl); }
li { margin-bottom: var(--space-sm); }
li::marker { color: var(--color-accent); }
strong { font-weight: 600; }

blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  background: var(--color-border-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

/* --- Course Header --- */
.course-header {
  background: var(--color-primary-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.course-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.course-header-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.course-header-title a {
  color: rgba(255, 255, 255, 0.9);
}
.course-header-title a:hover {
  color: #ffffff;
}

.course-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.course-nav a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.course-nav a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}
.course-nav a.active {
  color: var(--color-accent-light);
  background: rgba(255, 255, 255, 0.15);
}

/* Hamburger for mobile */
.course-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}
.course-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* --- Progress Bar --- */
.progress-bar {
  background: var(--color-border);
  height: 4px;
  width: 100%;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transition: width 0.4s ease;
  border-radius: 0 2px 2px 0;
}

/* --- Module Hero --- */
.module-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #ffffff;
  padding: var(--space-2xl) var(--space-xl);
}

.module-hero-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.module-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-light);
  margin-bottom: var(--space-md);
}

.module-hero h1 {
  color: #ffffff;
  font-size: 2.25rem;
  margin-bottom: var(--space-sm);
}

.module-meta {
  display: flex;
  gap: var(--space-xl);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  margin-top: var(--space-md);
}

.module-meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.module-hero .learning-goal {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-accent);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}

.module-hero .learning-goal strong {
  color: #ffffff;
}

/* --- Content Area --- */
.course-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
}

.section-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
}

.section-header h2 {
  margin: 0;
  padding: 0;
  border: none;
  font-size: 1.6rem;
}

.section-time {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  font-weight: 500;
}

/* --- Infographic / Limitation Cards --- */
.limitation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.limitation-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.limitation-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.limitation-icon.fail {
  background: var(--color-incorrect-bg);
  color: var(--color-incorrect);
}

.limitation-icon svg {
  width: 20px;
  height: 20px;
}

.limitation-card h4 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 0.95rem;
}

.limitation-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

/* --- Comparison Table (Two Approaches) --- */
.comparison-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.comparison-col {
  background: var(--color-surface);
}

.comparison-col.caution {
  background: var(--color-incorrect-bg);
  border-right: 1px solid var(--color-border);
}

.comparison-col.caution .comparison-header {
  color: var(--color-incorrect);
  background: rgba(220, 38, 38, 0.06);
}

.comparison-col.highlight {
  background: var(--color-track2-bg);
  border-left: 3px solid var(--color-track2);
}

.comparison-header {
  padding: var(--space-lg);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-border);
}

.comparison-col:first-child:not(.caution) .comparison-header {
  color: var(--color-text-muted);
  background: var(--color-border-light);
}

.comparison-col.highlight .comparison-header {
  color: var(--color-track2);
  background: rgba(22, 163, 74, 0.08);
}

.comparison-row {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

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

.comparison-row .icon {
  flex-shrink: 0;
  font-size: 0.85rem;
  margin-top: 2px;
}

/* --- Principle Circles --- */
.principles-visual {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.principle-circle {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.3;
  color: #ffffff;
  background: var(--color-primary);
  border: 3px solid var(--color-primary-light);
  transition: transform var(--transition), box-shadow var(--transition);
}

.principle-circle:nth-child(2) { background: var(--color-primary-light); border-color: var(--color-primary); }
.principle-circle:nth-child(3) { background: var(--color-accent); border-color: var(--color-accent-dark); }
.principle-circle:nth-child(4) { background: #6366f1; border-color: #4f46e5; }
.principle-circle:nth-child(5) { background: var(--color-track2); border-color: #15803d; }

.principle-circle:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-md);
}

/* --- Scenario / Interactive Activity --- */
.activity-block {
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  margin: var(--space-2xl) 0;
  overflow: hidden;
}

.activity-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #ffffff;
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.activity-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  font-size: 1.25rem;
}

.activity-header h2 {
  margin: 0;
  padding: 0;
  border: none;
  color: #ffffff;
  font-size: 1.25rem;
}

.activity-header .section-time {
  color: rgba(255, 255, 255, 0.6);
}

.activity-body {
  padding: var(--space-xl);
}

.scenario-text {
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  font-size: 0.95rem;
  line-height: 1.8;
  border-left: 3px solid var(--color-primary);
}

.scenario-text p:last-child {
  margin-bottom: 0;
}

/* --- Option Cards --- */
.option-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.option-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.option-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.option-card.selected {
  border-color: var(--color-primary);
  background: #f0f4f8;
}

.option-card.disabled {
  cursor: default;
  opacity: 0.6;
}
.option-card.disabled:hover {
  border-color: var(--color-border);
  box-shadow: none;
}

.option-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.option-card.selected .option-letter {
  background: var(--color-accent);
}

.option-card p {
  margin: 0;
  font-size: 0.95rem;
}

/* --- Feedback Cards --- */
.feedback-card {
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
  margin-top: var(--space-lg);
  display: none;
  animation: fadeSlideIn 0.35s ease;
  line-height: 1.7;
}

.feedback-card.visible {
  display: block;
}

.feedback-card.neutral {
  background: var(--color-feedback);
  border: 1px solid var(--color-feedback-border);
}

.feedback-card.correct {
  background: var(--color-correct-bg);
  border: 1px solid var(--color-track2-border);
}

.feedback-card.incorrect {
  background: var(--color-incorrect-bg);
  border: 1px solid #fecaca;
}

.feedback-card h4 {
  margin: 0 0 var(--space-sm) 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1rem;
}

.feedback-card p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

.feedback-card p:last-child {
  margin-bottom: 0;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Reflection Box --- */
.reflection-box {
  background: var(--color-border-light);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  font-size: 0.92rem;
}

.reflection-box p { margin-bottom: 0; }

.reflection-box strong {
  color: var(--color-primary);
}

/* --- Knowledge Check --- */
.knowledge-check {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  margin: var(--space-2xl) 0;
  overflow: hidden;
}

.kc-header {
  background: var(--color-primary);
  color: #ffffff;
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.kc-header h2 {
  margin: 0;
  padding: 0;
  border: none;
  color: #ffffff;
  font-size: 1.25rem;
}

.kc-body {
  padding: var(--space-xl);
}

.kc-question {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.kc-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.kc-option {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: 0.92rem;
  line-height: 1.6;
}

.kc-option:hover {
  border-color: var(--color-primary-light);
  background: var(--color-border-light);
}

.kc-option.selected {
  border-color: var(--color-primary);
  background: #f0f4f8;
}

.kc-option.correct {
  border-color: var(--color-correct);
  background: var(--color-correct-bg);
}

.kc-option.incorrect {
  border-color: var(--color-incorrect);
  background: var(--color-incorrect-bg);
}

.kc-option.disabled {
  cursor: default;
}

.kc-option .option-letter {
  margin-top: 2px;
}

.kc-option.correct .option-letter {
  background: var(--color-correct);
}

.kc-option.incorrect .option-letter {
  background: var(--color-incorrect);
}

.kc-submit {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.65em 1.8em;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  background: var(--color-accent);
  color: #ffffff;
  transition: all var(--transition);
}

.kc-submit:hover {
  background: var(--color-accent-dark);
}

.kc-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --- Module Navigation --- */
.module-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 2px solid var(--color-border);
}

.module-nav a {
  display: flex;
  flex-direction: column;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  flex: 1;
  max-width: 50%;
}

.module-nav a:hover {
  border-color: var(--color-primary);
  background: var(--color-border-light);
}

.module-nav .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.module-nav .title {
  font-weight: 600;
  color: var(--color-primary);
}

.module-nav .next {
  text-align: right;
  margin-left: auto;
}

/* --- Transition Box --- */
.transition-box {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin: var(--space-2xl) 0;
  text-align: center;
}

.transition-box p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto var(--space-md);
}

.transition-box p:last-child { margin-bottom: 0; }

.transition-box .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.65em 1.5em;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  background: var(--color-accent);
  color: #ffffff;
  margin-top: var(--space-md);
}

.transition-box .btn:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
}

/* --- Course Landing Page --- */
.course-hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  color: #ffffff;
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.course-hero-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.course-hero h1 {
  color: #ffffff;
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.course-hero .subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-sm);
}

.course-hero p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  font-size: 1rem;
}

.course-hero .course-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  margin-bottom: var(--space-xl);
}

.course-hero .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75em 2em;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  background: var(--color-accent);
  color: #ffffff;
}

.course-hero .btn:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
}

/* Module cards on landing page */
.module-cards {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
}

.module-cards h2 {
  text-align: center;
  border: none;
  margin-bottom: var(--space-xl);
}

.module-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  transition: all var(--transition);
}

.module-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.module-card-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  min-width: 56px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.module-card-content h3 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1.15rem;
}

.module-card-content p {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  margin-bottom: var(--space-sm);
}

.module-card-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.module-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary-light);
  margin-top: var(--space-sm);
}

.module-card-link::after {
  content: '\2192';
  transition: transform var(--transition);
}

.module-card:hover .module-card-link::after {
  transform: translateX(3px);
}

.module-card.coming-soon {
  opacity: 0.55;
  cursor: default;
}

.module-card.coming-soon:hover {
  box-shadow: none;
  border-color: var(--color-border);
}

.coming-soon-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-border-light);
  color: var(--color-text-muted);
  padding: 0.2em 0.6em;
  border-radius: 100px;
  margin-top: var(--space-sm);
}

/* --- Footer --- */
.course-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-xl);
  margin-top: var(--space-3xl);
}

.course-footer-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  font-size: 0.85rem;
}

.course-footer a {
  color: rgba(255, 255, 255, 0.5);
}
.course-footer a:hover {
  color: rgba(255, 255, 255, 0.8);
}

.course-footer .footer-licence {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.course-footer .footer-licence img {
  height: 22px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.course-footer .footer-licence:hover img {
  opacity: 0.9;
}

.course-footer .footer-licence span {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.8rem;
  white-space: nowrap;
}

.course-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.4);
  text-align: right;
}

/* --- Pause Note --- */
.pause-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.pause-note .icon {
  font-size: 1.25rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pause-note p { margin: 0; }

/* --- Risk Spectrum --- */
.risk-spectrum {
  display: flex;
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.risk-band {
  flex: 1;
  padding: var(--space-lg);
  text-align: center;
}

.risk-band.low {
  background: var(--color-correct-bg);
  border-right: 1px solid var(--color-border);
}

.risk-band.medium {
  background: #fffbeb;
  border-right: 1px solid var(--color-border);
}

.risk-band.high {
  background: var(--color-incorrect-bg);
}

.risk-band .risk-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.risk-band.low .risk-label { color: var(--color-correct); }
.risk-band.medium .risk-label { color: #d97706; }
.risk-band.high .risk-label { color: var(--color-incorrect); }

.risk-band .risk-examples {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --- Risk Category Cards --- */
.risk-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.risk-category {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border-top: 4px solid;
}

.risk-category.high { border-top-color: var(--color-incorrect); }
.risk-category.medium { border-top-color: #d97706; }
.risk-category.low { border-top-color: var(--color-correct); }

.risk-category h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.risk-category.high h4 { color: var(--color-incorrect); }
.risk-category.medium h4 { color: #d97706; }
.risk-category.low h4 { color: var(--color-correct); }

.risk-category ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.risk-category li {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border-light);
  margin: 0;
}

.risk-category li:last-child {
  border-bottom: none;
}

/* --- Before / After Comparison --- */
.before-after {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  margin: var(--space-xl) 0;
  align-items: stretch;
}

.before-box, .after-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.before-box {
  border-top: 4px solid var(--color-incorrect);
}

.after-box {
  border-top: 4px solid var(--color-correct);
}

.before-box h4, .after-box h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.before-box h4 { color: var(--color-incorrect); }
.after-box h4 { color: var(--color-correct); }

.before-box p, .after-box p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.after-box ul {
  margin: 0;
  padding-left: var(--space-lg);
}

.after-box li {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.before-after-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-md);
  font-size: 1.5rem;
  color: var(--color-accent);
  font-weight: 700;
}

/* --- Scenario Stepper --- */
.scenario-stepper {
  margin: var(--space-lg) 0;
}

.scenario-progress {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.scenario-dots {
  display: flex;
  gap: var(--space-xs);
}

.scenario-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  transition: background 0.2s ease;
}

.scenario-dot.active {
  background: var(--color-accent);
}

.scenario-dot.done {
  background: var(--color-correct);
}

.scenario-slide {
  display: none;
}

.scenario-slide.active {
  display: block;
  animation: fadeSlideIn 0.3s ease;
}

.scenario-discipline {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--color-primary);
  color: #ffffff;
  padding: 0.25em 0.7em;
  border-radius: 100px;
  margin-bottom: var(--space-md);
}

.scenario-next-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5em 1.2em;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  background: var(--color-surface);
  color: var(--color-primary);
  transition: all var(--transition);
  margin-top: var(--space-md);
}

.scenario-next-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-border-light);
}

/* --- Risk Option Cards (coloured) --- */
.risk-options {
  display: flex;
  gap: var(--space-md);
  margin: var(--space-md) 0 var(--space-lg);
}

.risk-option {
  flex: 1;
  padding: var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  font-weight: 600;
}

.risk-option:hover {
  box-shadow: var(--shadow-sm);
}

.risk-option.low { color: var(--color-correct); }
.risk-option.medium { color: #d97706; }
.risk-option.high { color: var(--color-incorrect); }

.risk-option.selected.low { border-color: var(--color-correct); background: var(--color-correct-bg); }
.risk-option.selected.medium { border-color: #d97706; background: #fffbeb; }
.risk-option.selected.high { border-color: var(--color-incorrect); background: var(--color-incorrect-bg); }

/* --- Open Text Input --- */
.open-text {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.6;
  resize: vertical;
  transition: border-color var(--transition);
  min-height: 80px;
  margin-bottom: var(--space-md);
}

.open-text:focus {
  outline: none;
  border-color: var(--color-primary-light);
}

.open-text-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.open-text-small {
  min-height: 50px;
}

.inline-field {
  margin-bottom: var(--space-lg);
}

/* --- Track Comparison (Module 3) --- */
.comparison-col.track1 {
  background: var(--color-track1-bg);
  border-right: 1px solid var(--color-border);
}

.comparison-col.track1 .comparison-header {
  color: var(--color-track1);
  background: rgba(37, 99, 235, 0.06);
}

.comparison-col.track2 {
  background: var(--color-track2-bg);
  border-left: 3px solid var(--color-track2);
}

.comparison-col.track2 .comparison-header {
  color: var(--color-track2);
  background: rgba(22, 163, 74, 0.08);
}

/* --- Strategy Summary Cards --- */
.strategy-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.strategy-summary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  border-top: 3px solid var(--color-accent);
  transition: box-shadow var(--transition);
}

.strategy-summary:hover {
  box-shadow: var(--shadow-md);
}

.strategy-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-md);
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
}

.strategy-summary h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.9rem;
}

.strategy-summary p {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

/* --- Example Flow Cards --- */
.example-flow {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  border-left: 4px solid var(--color-accent);
}

.example-flow h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.example-flow ul {
  margin-bottom: var(--space-md);
}

.example-flow p:last-child {
  margin-bottom: 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* --- Effort vs Impact --- */
.effort-impact-grid {
  margin: var(--space-xl) 0;
}

.effort-impact-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.effort-impact-label {
  min-width: 160px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.effort-impact-badges {
  display: flex;
  gap: var(--space-sm);
  margin-left: auto;
}

.badge {
  display: inline-block;
  padding: 0.2em 0.6em;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.badge.effort-low { background: var(--color-correct-bg); color: var(--color-correct); }
.badge.effort-medium { background: #fffbeb; color: #d97706; }
.badge.effort-high { background: var(--color-incorrect-bg); color: var(--color-incorrect); }
.badge.impact-medium { background: #fffbeb; color: #d97706; }
.badge.impact-high { background: var(--color-correct-bg); color: var(--color-correct); }

/* --- Strategy Explorer (expandable cards) --- */
.strategy-exp-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: box-shadow var(--transition);
}

.strategy-exp-card:hover {
  box-shadow: var(--shadow-sm);
}

.strategy-exp-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}

.strategy-exp-header:hover {
  background: var(--color-border-light);
}

.strategy-exp-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.strategy-exp-header h4 {
  margin: 0;
  font-size: 1rem;
}

.strategy-exp-header p {
  margin: var(--space-xs) 0 0;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.strategy-exp-toggle {
  margin-left: auto;
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  line-height: 1;
}

.strategy-exp-card.open .strategy-exp-toggle {
  transform: rotate(45deg);
}

.strategy-exp-body {
  display: none;
  padding: 0 var(--space-lg) var(--space-lg);
  border-top: 1px solid var(--color-border);
  animation: fadeSlideIn 0.3s ease;
}

.strategy-exp-card.open .strategy-exp-body {
  display: block;
}

.strategy-exp-body h4 {
  margin: var(--space-lg) 0 var(--space-sm) 0;
  font-size: 0.9rem;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.strategy-exp-body h4:first-child {
  margin-top: var(--space-lg);
}

.strategy-exp-body ul {
  padding-left: var(--space-lg);
}

.strategy-exp-body li {
  font-size: 0.9rem;
  line-height: 1.6;
}

.strategy-exp-body p {
  font-size: 0.9rem;
}

.size-note {
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem !important;
  color: var(--color-text-secondary);
}

/* --- Self-Reflect Checkbox --- */
.self-reflect {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
  cursor: pointer;
}

.self-reflect input[type="checkbox"] {
  accent-color: var(--color-accent);
  width: 16px;
  height: 16px;
}

/* --- Closing Note --- */
.closing-note {
  animation: fadeSlideIn 0.35s ease;
}

/* --- Case Study (Module 4) --- */
.case-study {
  margin: var(--space-xl) 0;
}

.case-study-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.case-study-detail {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.case-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: 0;
}

.case-panel.original {
  border-top: 4px solid var(--color-incorrect);
}

.case-panel.redesign {
  border-top: 4px solid var(--color-correct);
}

.case-panel h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 1.1rem;
}

.case-panel.original h4 { color: var(--color-incorrect); }
.case-panel.redesign h4 { color: var(--color-correct); }

.case-panel h5 {
  margin: var(--space-lg) 0 var(--space-sm) 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.case-panel blockquote {
  margin: 0 0 var(--space-md) 0;
  font-style: italic;
}

.case-study-arrow {
  text-align: center;
  font-size: 1.5rem;
  color: var(--color-accent);
  font-weight: 700;
  padding: var(--space-md) 0;
}

.case-workload {
  background: var(--color-border-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-top: var(--space-md);
}

.case-workload h5 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.case-workload ul {
  margin-bottom: var(--space-sm);
}

.case-workload li {
  font-size: 0.88rem;
}

.case-workload p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.case-result {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-top: var(--space-md);
  border-left: 4px solid var(--color-accent);
}

.case-result h5 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-accent-dark);
}

.case-result blockquote {
  margin: var(--space-sm) 0 var(--space-md) 0;
  border-left-color: var(--color-accent-light);
}

.case-result blockquote p {
  margin-bottom: var(--space-xs);
  font-size: 0.92rem;
}

.case-result blockquote p:last-child {
  margin-bottom: 0;
}

.case-result > p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

/* --- Workbench --- */
.workbench-progress {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
}

.workbench-progress-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.workbench-dots {
  display: flex;
  gap: var(--space-sm);
}

.workbench-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
  transition: all 0.2s ease;
}

.workbench-dot.active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #ffffff;
}

.workbench-dot.done {
  border-color: var(--color-correct);
  background: var(--color-correct);
  color: #ffffff;
}

.workbench-step {
  display: none;
  animation: fadeSlideIn 0.3s ease;
}

.workbench-step.active {
  display: block;
}

.workbench-step h4 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.step-time {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.workbench-nav-btns {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light);
}

.workbench-next {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6em 1.4em;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  background: var(--color-accent);
  color: #ffffff;
  transition: all var(--transition);
  margin-left: auto;
}

.workbench-next:hover {
  background: var(--color-accent-dark);
}

.workbench-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6em 1.4em;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.workbench-back:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* --- Form Elements --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.5;
  transition: border-color var(--transition);
  background: var(--color-surface);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary-light);
}

.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.5;
  transition: border-color var(--transition);
  background: var(--color-surface);
  cursor: pointer;
  appearance: auto;
}

.form-select:focus {
  outline: none;
  border-color: var(--color-primary-light);
}

.form-help {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  font-style: italic;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* --- Opportunity Options (Step 2) --- */
.opportunity-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.opportunity-option {
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.92rem;
  font-weight: 500;
}

.opportunity-option:hover {
  border-color: var(--color-primary-light);
  background: var(--color-border-light);
}

.opportunity-option.selected {
  border-color: var(--color-accent);
  background: rgba(184, 134, 11, 0.06);
  color: var(--color-primary);
  font-weight: 600;
}

/* --- Context Feedback --- */
.context-feedback {
  display: none;
  background: var(--color-feedback);
  border: 1px solid var(--color-feedback-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
  animation: fadeSlideIn 0.3s ease;
}

.context-feedback.visible {
  display: block;
}

.context-feedback p {
  margin-bottom: 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
}

/* --- Strategy Checkboxes (Step 3 & paths) --- */
.strategy-checks {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.strategy-check {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

.strategy-check:hover {
  border-color: var(--color-primary-light);
  background: var(--color-border-light);
}

.strategy-check.checked,
.strategy-check:has(input:checked) {
  border-color: var(--color-accent);
  background: rgba(184, 134, 11, 0.06);
}

.strategy-check input[type="checkbox"] {
  accent-color: var(--color-accent);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.strategy-check strong {
  display: block;
  font-size: 0.92rem;
  color: var(--color-primary);
}

.strategy-check span {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.strategy-check.mini {
  padding: var(--space-sm) var(--space-md);
  border-width: 1px;
}

.strategy-check.mini span {
  font-size: 0.88rem;
}

.strategy-checks.compact {
  margin-bottom: var(--space-md);
}

/* --- Redesign Paths (Step 4) --- */
.redesign-path {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  border-left: 4px solid var(--color-accent);
  animation: fadeSlideIn 0.3s ease;
}

.redesign-path.visible {
  display: block;
}

.redesign-path h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 1rem;
  color: var(--color-accent-dark);
}

.no-selection-msg {
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-text-muted);
  font-style: italic;
}

/* --- Feasibility Slider --- */
.slider-container {
  margin: var(--space-md) 0;
}

.feasibility-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  background: linear-gradient(90deg,
    var(--color-incorrect-bg) 0%,
    #fffbeb 50%,
    var(--color-correct-bg) 100%
  );
  border: 1px solid var(--color-border);
}

.feasibility-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: 2px solid #ffffff;
  box-shadow: var(--shadow-sm);
}

.feasibility-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: pointer;
  border: 2px solid #ffffff;
  box-shadow: var(--shadow-sm);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* --- Brief Template --- */
.brief-template {
  background: var(--color-border-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.template-text {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.template-text p {
  margin-bottom: var(--space-xs);
}

/* --- Knowledge Check Reveal Button --- */
.kc-reveal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6em 1.6em;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  background: var(--color-primary);
  color: #ffffff;
  transition: all var(--transition);
}

.kc-reveal:hover {
  background: var(--color-primary-light);
}

/* --- Reason Cards (Module 5) --- */
.reason-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.reason-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border-top: 3px solid var(--color-primary);
}

.reason-card h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 0.95rem;
  color: var(--color-primary);
}

.reason-card p {
  font-size: 0.88rem;
  margin-bottom: 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Support Areas --- */
.support-areas {
  margin: var(--space-xl) 0;
}

.support-area {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.support-area:last-child {
  border-bottom: none;
}

.support-area h4 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 0.92rem;
  color: var(--color-primary);
}

.support-area p {
  margin-bottom: 0;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

/* --- Action Sections --- */
.action-section {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.action-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.action-section h4 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1.05rem;
  color: var(--color-primary);
}

/* --- Commit Button --- */
.commit-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6em 1.6em;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  background: var(--color-accent);
  color: #ffffff;
  transition: all var(--transition);
}

.commit-btn:hover {
  background: var(--color-accent-dark);
}

/* --- Resource Grid --- */
.resource-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.resource-category {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.resource-category h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 0.92rem;
  color: var(--color-primary);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
}

.resource-category ul {
  padding-left: var(--space-lg);
  margin-bottom: 0;
}

.resource-category li {
  font-size: 0.88rem;
  margin-bottom: var(--space-xs);
  line-height: 1.5;
}

.resource-category a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-accent-light);
  transition: all var(--transition);
}

.resource-category a:hover {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent-dark);
}

/* --- Closing Narrative --- */
.closing-narrative {
  background: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin: var(--space-2xl) 0;
}

.closing-narrative h2 {
  color: var(--color-accent-light);
  margin-top: 0;
  margin-bottom: var(--space-xl);
  padding-bottom: 0;
  border-bottom: none;
  font-size: 1.5rem;
}

.closing-narrative p {
  font-size: 1.02rem;
  line-height: 1.85;
  opacity: 0.95;
  margin-bottom: var(--space-lg);
}

.closing-narrative p:last-child {
  margin-bottom: 0;
  font-size: 1.1rem;
  font-weight: 600;
  opacity: 1;
}

.closing-narrative strong {
  color: var(--color-accent-light);
}

.closing-narrative em {
  color: rgba(255, 255, 255, 0.9);
}

/* --- Completion Screen --- */
.completion-screen {
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  margin: var(--space-2xl) 0;
}

.completion-title {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin: 0 0 var(--space-xl) 0;
}

.completion-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  text-align: left;
}

.completion-columns h4 {
  margin: 0 0 var(--space-md) 0;
  font-size: 0.92rem;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.completion-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.completion-list li {
  padding: var(--space-xs) 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* --- CTA Buttons --- */
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.cta-btn {
  display: block;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 600;
  font-size: 0.88rem;
  transition: all var(--transition);
}

.cta-btn:hover {
  background: var(--color-accent);
  color: #ffffff;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .course-nav-toggle {
    display: block;
  }

  .course-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-primary-dark);
    flex-direction: column;
    padding: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
  }

  .course-nav.open {
    display: flex;
  }

  .course-nav a {
    padding: var(--space-md);
    width: 100%;
  }

  .module-hero h1, .course-hero h1 {
    font-size: 1.8rem;
  }

  .limitation-grid {
    grid-template-columns: 1fr;
  }

  .comparison-container {
    grid-template-columns: 1fr;
  }

  .comparison-col.caution,
  .comparison-col.track1 {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .comparison-col.highlight {
    border-left: none;
    border-top: 3px solid var(--color-track2);
  }

  .comparison-col.track2 {
    border-left: none;
    border-top: 3px solid var(--color-track2);
  }

  .strategy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .strategy-summary:last-child {
    grid-column: 1 / -1;
  }

  .effort-impact-row {
    flex-wrap: wrap;
  }

  .effort-impact-label {
    min-width: auto;
    width: 100%;
  }

  .effort-impact-badges {
    margin-left: 0;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .workbench-nav-btns {
    flex-direction: column;
  }

  .workbench-next {
    margin-left: 0;
  }

  .strategy-check {
    padding: var(--space-sm) var(--space-md);
  }

  .reason-cards {
    grid-template-columns: 1fr;
  }

  .resource-grid {
    grid-template-columns: 1fr;
  }

  .completion-columns {
    grid-template-columns: 1fr;
  }

  .cta-grid {
    grid-template-columns: 1fr;
  }

  .closing-narrative {
    padding: var(--space-xl);
  }

  .principles-visual {
    gap: var(--space-sm);
  }

  .principle-circle {
    width: 100px;
    height: 100px;
    font-size: 0.7rem;
  }

  .module-meta {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .module-nav {
    flex-direction: column;
  }

  .module-nav a {
    max-width: 100%;
    width: 100%;
  }

  .module-card {
    flex-direction: column;
    gap: var(--space-md);
  }

  .course-hero .course-meta {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .course-footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .course-footer p {
    text-align: left;
  }

  .section-header {
    flex-wrap: wrap;
  }

  .section-time {
    width: 100%;
    margin-left: 0;
    margin-top: var(--space-xs);
  }

  .risk-spectrum {
    flex-direction: column;
  }

  .risk-band.low, .risk-band.medium {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .risk-categories {
    grid-template-columns: 1fr;
  }

  .before-after {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .before-after-arrow {
    padding: var(--space-sm) 0;
    font-size: 1.25rem;
    transform: rotate(90deg);
  }

  .risk-options {
    flex-direction: column;
  }
}

/* --- Print --- */
@media print {
  .course-header, .course-footer, .module-nav, .progress-bar, .course-nav-toggle { display: none !important; }
  body { font-size: 11pt; color: #000; background: #fff; }
  .module-hero, .course-hero { background: #eee !important; color: #000 !important; padding: 1em; }
  .module-hero h1, .course-hero h1 { color: #000 !important; }
  .activity-block, .knowledge-check { break-inside: avoid; border-color: #ccc; }
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

*:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}