/* ============================================================
   Capstone Project & Research Methodology
   Common Course for BBA (Hons) & BCA (Hons) — NEP-2020
   Common Stylesheet
   ============================================================ */

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

:root {
  --primary: #1b3a4b;
  --primary-light: #2c6e8a;
  --accent: #c77d20;
  --accent-light: #f0c87c;
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #2d3748;
  --text-light: #5a6978;
  --text-muted: #8899aa;
  --border: #e2e8f0;
  --success: #2e8b57;
  --warning: #c77d20;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius: 6px;
  --radius-lg: 10px;
  --transition: 0.2s ease;
  --font: 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html { font-size: 17px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--primary);
  line-height: 1.3;
}

h1 { font-size: 2rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.55rem; margin: 1.8rem 0 0.7rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--accent-light); }
h3 { font-size: 1.2rem; margin: 1.4rem 0 0.5rem; color: var(--primary-light); }
p { margin-bottom: 1rem; }
ul, ol { margin: 0.5rem 0 1rem 1.8rem; }
li { margin-bottom: 0.35rem; }
a { color: var(--primary-light); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--primary); }

/* --- Common Header --- */
.site-header {
  background: linear-gradient(135deg, var(--primary) 0%, #0f2a38 100%);
  color: #ffffff;
  padding: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1150px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.header-brand { display: flex; align-items: center; gap: 0.9rem; }

.header-logo {
  width: 48px; height: 48px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.header-title-group { line-height: 1.3; }

.header-course-code {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  opacity: 0.8;
  font-weight: 600;
  display: block;
}

.header-course-title {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
}

.header-subtitle {
  font-size: 0.78rem;
  opacity: 0.8;
  font-style: italic;
  display: block;
}

.header-meta {
  text-align: right;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  opacity: 0.9;
  line-height: 1.5;
}
.header-meta span { display: block; }

/* --- Navigation --- */
.header-nav {
  background: rgba(0,0,0,0.15);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.header-nav-inner {
  max-width: 1150px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 0 1.2rem;
  overflow-x: auto;
}

.header-nav a {
  font-family: var(--font-sans);
  color: rgba(255,255,255,0.82);
  text-decoration: none;
  padding: 0.5rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.header-nav a:hover,
.header-nav a.active {
  color: #fff;
  border-bottom-color: var(--accent);
  background: rgba(255,255,255,0.04);
}

.header-nav a.active {
  color: var(--accent-light);
  font-weight: 600;
}

/* --- Semester Dropdown in Nav --- */
.nav-sem-group { display: flex; align-items: center; gap: 0.3rem; }
.nav-sem-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--accent-light);
  font-weight: 600;
  white-space: nowrap;
  padding: 0.3rem 0.5rem;
  letter-spacing: 0.05em;
}

/* --- Main Content Wrapper --- */
.site-main {
  flex: 1;
  max-width: 1150px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
}

/* --- Hero / Banner (Index) --- */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #14303d 100%);
  color: #fff;
  padding: 2.5rem 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: -40%; right: -8%;
  width: 280px; height: 280px;
  background: rgba(199,125,32,0.08);
  border-radius: 50%;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: #fff;
  position: relative;
  z-index: 1;
}

.hero p {
  font-size: 0.95rem;
  opacity: 0.9;
  max-width: 700px;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}

.hero-meta {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
  font-family: var(--font-sans);
}

.hero-meta span {
  background: rgba(255,255,255,0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 500;
}

/* --- Page Header (Week pages) --- */
.page-header { margin-bottom: 1.8rem; }

.breadcrumb {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.breadcrumb a { color: var(--primary-light); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 0.4rem; opacity: 0.4; }

.page-header h1 { font-size: 1.8rem; margin-bottom: 0.3rem; }

.badge-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
  font-family: var(--font-sans);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  font-size: 0.74rem;
  font-weight: 600;
}

.badge-week { background: var(--primary); color: #fff; }
.badge-unit { background: var(--accent-light); color: var(--primary); }
.badge-hours { background: #e6fffa; color: #234e52; border: 1px solid #b2f5ea; }
.badge-bba { background: #ebf4ff; color: #2c5282; }
.badge-bca { background: #fef3c7; color: #92400e; }
.badge-milestone { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

/* --- Semester Sections (Index) --- */
.semester-section {
  margin-bottom: 2.5rem;
}

.semester-title {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent-light);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.semester-title .sem-badge {
  font-size: 0.75rem;
  background: var(--primary);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

/* --- Cards Grid (Index) --- */
.week-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

.week-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
}

.week-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-light);
}

.card-week-num {
  font-family: var(--font-sans);
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.15rem;
}

.card-unit-label {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  font-weight: 700;
}

.card-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.25rem;
  line-height: 1.35;
}

.card-desc {
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
  flex: 1;
}

.card-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.8rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-sans);
}

.card-tag {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 12px;
}

.tag-lecture { background: #ebf4ff; color: #2c5282; }
.tag-tutorial { background: #fefcbf; color: #975a16; }
.tag-milestone { background: #f0fdf4; color: #166534; }

.card-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-light);
}

/* Coming soon cards */
.week-card.coming-soon {
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
  border-style: dashed;
}

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

.coming-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.62rem;
  padding: 0.12rem 0.4rem;
  border-radius: 10px;
  background: var(--border);
  color: var(--text-muted);
  font-weight: 600;
  margin-left: 0.4rem;
  vertical-align: middle;
}

/* --- Content Sections --- */
.content-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.content-section h2 { margin-top: 0; }
.content-section h3:first-child { margin-top: 0; }

/* --- Definition Boxes --- */
.definition-box {
  background: #f7fafc;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.2rem 1.5rem;
  margin: 1.2rem 0;
}

.definition-box .term {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--primary);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.definition-box p { margin-bottom: 0; font-size: 0.92rem; }

/* --- Insight / Callout --- */
.insight-box {
  background: #fffdf5;
  border: 1px solid var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.1rem 1.4rem;
  margin: 1.2rem 0;
}

.insight-box .insight-label {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.3rem;
}

/* --- Comparison Table --- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.86rem;
}

.compare-table thead th {
  background: var(--primary);
  color: #fff;
  padding: 0.6rem 0.9rem;
  text-align: left;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.8rem;
}

.compare-table thead th:first-child { border-radius: var(--radius) 0 0 0; }
.compare-table thead th:last-child { border-radius: 0 var(--radius) 0 0; }

.compare-table tbody td {
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  font-size: 0.84rem;
}

.compare-table tbody tr:nth-child(even) td { background: #f7fafc; }
.compare-table tbody tr:hover td { background: #edf2f9; }

.compare-table .col-label {
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  font-family: var(--font-sans);
  font-size: 0.8rem;
}

/* --- Cross Question Box --- */
.cq-box {
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.5rem;
  margin: 1.2rem 0;
}

.cq-header {
  display: flex; align-items: center; gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.cq-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.85rem; font-weight: 700; flex-shrink: 0;
}

.cq-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  font-weight: 600;
}

.cq-questions { list-style: none; }
.cq-questions li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 0.9rem;
  color: #d0dce8;
  display: flex; gap: 0.6rem; align-items: flex-start;
}

.cq-questions li:last-child { border-bottom: none; }
.cq-questions li::before {
  content: '\2192';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.04rem;
}

.cq-hint {
  margin-top: 0.8rem;
  font-size: 0.78rem;
  color: #6b8fa8;
  font-style: italic;
}

/* --- Facilitator Note --- */
.fac-note {
  background: #f8f4ff;
  border: 1px solid #c4b5fd;
  border-left: 4px solid #7c3aed;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0.8rem 1.1rem;
  font-size: 0.83rem;
  margin: 0.85rem 0;
  color: #4c1d95;
}

.fac-note strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* --- Activity Block --- */
.activity-block {
  border: 2px solid #bbf7d0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 1.2rem 0;
}

.activity-header {
  background: #f0fdf4;
  padding: 0.85rem 1.25rem;
  display: flex; align-items: center; gap: 0.75rem;
  border-bottom: 1px solid #bbf7d0;
}

.activity-icon {
  width: 32px; height: 32px;
  background: var(--success); color: #fff;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}

.activity-header-text .act-title {
  font-family: var(--font-sans);
  font-weight: 700; font-size: 0.95rem;
}

.activity-header-text .act-meta {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  color: var(--success);
  margin-top: 0.1rem;
}

.activity-body { padding: 1.25rem; background: var(--surface); }

.step-list { list-style: none; }
.step-list li {
  display: flex; gap: 0.85rem; align-items: flex-start;
  padding: 0.6rem 0;
  border-bottom: 1px solid #f0ece8;
  font-size: 0.9rem;
}
.step-list li:last-child { border-bottom: none; }

.step-num {
  width: 22px; height: 22px;
  background: var(--success); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.72rem; font-weight: 700; flex-shrink: 0; margin-top: 0.1rem;
}

/* --- Quiz Block --- */
.quiz-block {
  border: 2px solid var(--accent-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 1.2rem 0;
}

.quiz-header {
  background: #fefce8;
  padding: 0.85rem 1.25rem;
  display: flex; align-items: center; gap: 0.75rem;
  border-bottom: 1px solid #fde68a;
}

.quiz-icon {
  width: 32px; height: 32px;
  background: var(--warning); color: #fff;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}

.quiz-header-text .act-title {
  font-family: var(--font-sans);
  font-weight: 700; font-size: 0.95rem;
}

.quiz-header-text .act-meta {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  color: var(--warning);
  margin-top: 0.1rem;
}

.quiz-body { padding: 1.25rem; background: var(--surface); }

.quiz-q { margin-bottom: 1.2rem; }
.quiz-q:last-child { margin-bottom: 0; }

.quiz-q .q-text {
  font-family: var(--font-sans);
  font-weight: 600; font-size: 0.9rem;
  margin-bottom: 0.55rem;
  padding: 0.55rem 0.85rem;
  background: var(--bg);
  border-radius: 6px;
  border-left: 3px solid var(--warning);
}

.quiz-options { list-style: none; }
.quiz-options li {
  padding: 0.45rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 0.3rem;
  cursor: pointer;
  transition: all 0.15s;
}
.quiz-options li:hover { background: #fef9ec; border-color: var(--warning); }
.quiz-options li.correct { background: #f0fdf4; border-color: var(--success); color: #15803d; font-weight: 600; cursor: default; }
.quiz-options li.wrong { background: #fef2f2; border-color: #e17055; color: #b91c1c; cursor: default; }

.quiz-feedback {
  font-size: 0.82rem; margin-top: 0.45rem;
  padding: 0.45rem 0.85rem; border-radius: 6px;
  display: none;
}

.quiz-feedback.visible { display: block; }
.quiz-feedback.correct { background: #f0fdf4; color: #15803d; }
.quiz-feedback.wrong { background: #fef2f2; color: #991b1b; }

.btn-check {
  padding: 0.55rem 1.8rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  transition: background var(--transition);
}
.btn-check:hover { background: var(--primary-light); }

/* --- Takeaways --- */
.takeaways {
  background: #f0fff4;
  border: 1px solid #c6f6d5;
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.5rem;
  margin: 1.2rem 0;
}

.takeaways h3 { color: #276749; margin-top: 0; font-family: var(--font-sans); }
.takeaways ul { margin: 0.5rem 0 0 1.3rem; }
.takeaways li { font-size: 0.9rem; margin-bottom: 0.35rem; }

/* --- Takeaways Grid --- */
.takeaways-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.75rem;
}

.tk-item {
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  font-size: 0.87rem;
  color: #c8d8e8;
  border-left: 3px solid var(--accent);
}

.tk-item strong { color: #fff; font-family: var(--font-sans); }

/* --- Reading List --- */
.reading-list { list-style: none; }
.reading-item {
  display: flex; gap: 0.85rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
  align-items: flex-start;
}
.reading-item:last-child { border-bottom: none; }

.reading-tag {
  font-family: var(--font-sans);
  font-size: 0.65rem; font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  white-space: nowrap; margin-top: 0.15rem;
  flex-shrink: 0;
}

.rt-core { background: var(--primary); color: #fff; }
.rt-supp { background: #ebf4ff; color: var(--primary-light); }

/* --- LO Grid --- */
.lo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.6rem;
  margin-top: 0.8rem;
}

.lo-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.85rem;
  font-size: 0.85rem;
  display: flex; gap: 0.5rem; align-items: flex-start;
  font-family: var(--font-sans);
}

.lo-num {
  font-size: 0.66rem;
  background: var(--accent);
  color: #fff;
  padding: 0.12rem 0.35rem;
  border-radius: 3px;
  flex-shrink: 0;
  margin-top: 0.12rem;
  font-family: var(--font-sans);
  font-weight: 700;
}

/* --- BBA vs BCA Dual Badge --- */
.dual-badge-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0.5rem 0;
}

.dual-badge {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

.dual-bba { background: #ebf4ff; color: #2c5282; border: 1px solid #bfdbfe; }
.dual-bca { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

/* --- Progress Bar --- */
.progress-bar {
  position: fixed; top: 0; left: 0; width: 100%;
  height: 3px; background: transparent; z-index: 1000;
  pointer-events: none;
}
.progress-fill {
  height: 100%; width: 0%;
  background: var(--accent);
  transition: width 0.15s ease;
}

/* --- Section Navigation (prev/next) --- */
.section-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.section-nav a { font-weight: 600; }
.section-nav .nav-placeholder { visibility: hidden; }

.nav-btn {
  padding: 0.55rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  transition: all 0.15s;
  display: inline-block;
}

.nav-btn:hover { border-color: var(--accent); color: var(--accent); }
.nav-btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.nav-btn.primary:hover { background: #a56818; }
.nav-btn.disabled { color: var(--text-muted); cursor: default; }
.nav-btn.disabled:hover { border-color: var(--border); color: var(--text-muted); }

/* --- Cross Question Blocks --- */
.cross-question {
  background: #1b3a4b;
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.5rem;
  margin-bottom: 0.8rem;
  color: #eef4f8;
}
.cross-question .cq-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.cross-question .cq-body { font-size: 0.9rem; line-height: 1.6; }
.cross-question .cq-body p { margin-bottom: 0; }

/* --- Quiz Option Labels (radio) --- */
.quiz-opt {
  display: block;
  padding: 0.45rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 0.3rem;
  cursor: pointer;
  transition: all 0.15s;
}
.quiz-opt:hover { background: #fef9ec; border-color: var(--warning); }
.quiz-item { margin-bottom: 1.1rem; }
.quiz-item p { margin-bottom: 0.35rem; }

/* --- Exit Ticket --- */
.exit-ticket {
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
}
.exit-ticket ol { margin: 0 0 0 1.5rem; }
.exit-ticket li { margin-bottom: 0.65rem; }

/* --- Scenario Cards (lab) --- */
.scenario-card p { margin-bottom: 0; }

/* --- Facilitator Notes Section --- */
.facilitator-notes h2 { color: var(--accent); }
.facilitator-notes h4 { margin-top: 0; }

/* --- Session Info Bar --- */
.session-info h2 { border-bottom: none; margin-bottom: 0; }

/* --- Footer --- */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.8);
  padding: 2rem 1.5rem 1rem;
  margin-top: auto;
}

.footer-inner {
  max-width: 1150px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.footer-col h4 {
  color: var(--accent-light);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.8rem;
  font-family: var(--font-sans);
}

.footer-col p, .footer-col a {
  font-size: 0.82rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  display: block;
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  max-width: 1150px;
  margin: 1.5rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  text-align: center;
  font-size: 0.75rem;
  opacity: 0.6;
}

/* --- Progress / Milestone Tags on Cards --- */
.milestone-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 700;
  padding: 0.12rem 0.45rem;
  border-radius: 8px;
  background: #fef3c7;
  color: #92400e;
  margin-top: 0.3rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .header-top { flex-direction: column; text-align: center; padding: 0.8rem 1rem; }
  .header-meta { text-align: center; }
  .header-course-title { font-size: 0.95rem; }
  .header-nav-inner { gap: 0; padding: 0 0.6rem; }
  .header-nav a { padding: 0.45rem 0.5rem; font-size: 0.7rem; }

  .site-main { padding: 1.2rem; }
  .hero { padding: 1.5rem 1.2rem; }
  .hero h1 { font-size: 1.4rem; }
  .week-grid { grid-template-columns: 1fr; }
  .content-section { padding: 1.2rem; }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
}