/* ============================================================
   SYNEXMEDIA AI LEARNING PLATFORM — COURSE 2
   Main Stylesheet — Deep Charcoal + Teal + Gold
   ============================================================ */

:root {
  --charcoal: #1A1A2E;
  --charcoal-light: #16213E;
  --charcoal-mid: #0F3460;
  --teal: #00B4D8;
  --teal-dark: #0096C7;
  --teal-light: #90E0EF;
  --gold: #C9A84C;
  --gold-light: #F0D080;
  --white: #FFFFFF;
  --text-secondary: #ADB5BD;
  --success: #06D6A0;
  --error: #EF476F;
  --warning: #FFD166;
  --info: #118AB2;
  --understanding: #00B4D8;
  --applying: #C9A84C;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 32px rgba(0, 0, 0, 0.5);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'DM Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--charcoal);
  color: var(--white);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'DM Serif Display', Georgia, serif;
  line-height: 1.3;
  font-weight: 700;
}

a {
  color: var(--teal);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--teal-light);
}

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  outline: none;
}

input {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  letter-spacing: 0.02em;
}

.btn:hover {
  transform: scale(1.02);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(0, 180, 216, 0.5);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--charcoal);
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
}

.btn-gold:hover {
  box-shadow: 0 6px 24px rgba(201, 168, 76, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--teal);
}

.btn-outline:hover {
  background: rgba(0, 180, 216, 0.1);
}

.btn-danger {
  background: var(--error);
  color: var(--white);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-full {
  width: 100%;
}

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

.btn-disabled:hover {
  transform: none;
}

/* ---- Navigation ---- */
.dashboard-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--charcoal-light);
  border-bottom: 1px solid rgba(0, 180, 216, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.15em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ---- Landing Page ---- */
.landing-page {
  width: 100%;
}

.hero-section {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background:
    radial-gradient(circle at 20% 50%, rgba(0, 180, 216, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(201, 168, 76, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.02) 0%, transparent 70%),
    var(--charcoal);
}

.hero-content {
  max-width: 720px;
  text-align: center;
}

.hero-logo {
  width: 220px;
  height: 220px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  filter: drop-shadow(0 4px 24px rgba(0, 180, 216, 0.3));
}

.hero-title {
  font-size: 2.8rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--white), var(--teal-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--gold);
  margin-bottom: 24px;
  font-weight: 600;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.course1-link {
  display: inline-block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 12px;
}

.course1-link:hover {
  color: var(--teal);
}

/* Framework Section */
.framework-section {
  padding: 80px 24px;
  background: var(--charcoal-light);
}

.section-heading {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 48px;
}

.tier-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.tier-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--charcoal);
}

.tier-card h3 {
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}

.tier-card-modules {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.tier-card-understanding {
  border-left: 4px solid var(--teal);
}

.tier-card-understanding h3 {
  color: var(--teal);
}

.tier-card-applying {
  border-left: 4px solid var(--gold);
}

.tier-card-applying h3 {
  color: var(--gold);
}

.tier-card-building {
  border-left: 4px solid var(--teal);
  border-image: linear-gradient(to bottom, var(--teal), var(--gold)) 1;
}

.tier-card-building h3 {
  background: linear-gradient(135deg, var(--teal), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Module Preview Grid */
.modules-preview-section {
  padding: 80px 24px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

.preview-card {
  background: var(--charcoal-light);
  border: 1px solid rgba(0, 180, 216, 0.1);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}

.preview-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.preview-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--charcoal-mid);
  font-weight: 700;
  font-size: 1rem;
  margin: 12px 0;
}

.preview-card h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.preview-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.preview-time {
  font-size: 0.8rem;
  color: var(--teal);
}

/* Stats Section */
.stats-section {
  padding: 80px 24px;
  background: var(--charcoal-light);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto 48px;
}

.stat-box {
  text-align: center;
  padding: 24px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--teal);
  font-family: 'DM Serif Display', Georgia, serif;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 8px;
}

.outcomes {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.outcomes h3 {
  margin-bottom: 16px;
}

.outcomes ul {
  list-style: none;
  text-align: left;
  display: inline-block;
}

.outcomes li {
  padding: 8px 0;
  color: var(--text-secondary);
}

.outcomes li::before {
  content: '\2713';
  color: var(--teal);
  margin-right: 12px;
  font-weight: 700;
}

/* Certificate Preview */
.cert-preview-section {
  padding: 80px 24px;
  text-align: center;
}

.cert-description {
  max-width: 700px;
  margin: 0 auto;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Footer */
.landing-footer {
  padding: 40px 24px;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(0, 180, 216, 0.1);
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.footer-content p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-series {
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

/* ---- Auth Forms ---- */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--charcoal-light);
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.auth-logo {
  text-align: center;
  margin-bottom: 24px;
}
.auth-logo-img {
  width: 90px;
  height: 90px;
  border-radius: var(--radius);
  filter: drop-shadow(0 2px 16px rgba(0, 180, 216, 0.25));
}

.auth-title {
  text-align: center;
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.auth-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.input-wrap {
  position: relative;
}

.input-wrap input {
  width: 100%;
  background: var(--charcoal-mid);
  border: 1px solid rgba(0, 180, 216, 0.2);
  color: var(--white);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.input-wrap input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

.input-wrap input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
}

.password-toggle:hover {
  color: var(--teal);
}

.password-strength {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: -12px;
}

.strength-segments {
  display: flex;
  gap: 4px;
  flex: 1;
}

.strength-segment {
  height: 4px;
  flex: 1;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.1);
  transition: background-color 0.3s ease;
}

.strength-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  min-width: 50px;
  text-align: right;
}

.form-error {
  background: rgba(239, 71, 111, 0.15);
  border: 1px solid rgba(239, 71, 111, 0.3);
  color: var(--error);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
}

.auth-switch {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 24px;
}

.auth-switch a {
  font-weight: 600;
}

.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

/* ---- Dashboard ---- */
.dashboard-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

.dashboard-header {
  padding: 40px 0 24px;
}

.dashboard-welcome {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.level-badge {
  display: inline-block;
  background: rgba(0, 180, 216, 0.15);
  color: var(--teal);
  border: 1px solid rgba(0, 180, 216, 0.3);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Tier Progress */
.tier-progress-section {
  margin-bottom: 40px;
  padding: 24px;
  background: var(--charcoal-light);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 180, 216, 0.1);
}

.tier-progress-section h3 {
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.tier-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.tier-row:last-child {
  margin-bottom: 0;
}

.tier-label {
  min-width: 140px;
  display: flex;
  flex-direction: column;
}

.tier-name {
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
}

.tier-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.tier-bar {
  flex: 1;
  display: flex;
  gap: 4px;
  height: 12px;
}

.tier-segment {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  transition: background-color 0.5s ease;
}

.tier-segment-filled {
  box-shadow: 0 0 8px rgba(0, 180, 216, 0.3);
}

.tier-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 36px;
  text-align: right;
}

/* Section Title */
.section-title {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

/* Module Grid */
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.module-card {
  background: var(--charcoal-light);
  border: 1px solid rgba(0, 180, 216, 0.1);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.module-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.module-card-certified {
  border-left: 4px solid var(--teal);
}

.module-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.tier-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.tier-understanding {
  background: rgba(0, 180, 216, 0.15);
  color: var(--teal);
  border: 1px solid rgba(0, 180, 216, 0.3);
}

.tier-applying {
  background: rgba(201, 168, 76, 0.15);
  color: var(--gold);
  border: 1px solid rgba(201, 168, 76, 0.3);
}

.tier-building {
  background: linear-gradient(135deg, rgba(0, 180, 216, 0.15), rgba(201, 168, 76, 0.15));
  border: 1px solid var(--teal);
  color: var(--teal);
}

.star-badge {
  color: var(--gold);
  font-size: 1.5rem;
  line-height: 1;
}

.module-number-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--charcoal-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.module-card-title {
  font-size: 1rem;
  margin-bottom: 8px;
  line-height: 1.3;
}

.module-card-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 12px;
  flex: 1;
}

/* Status Badges */
.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.status-not_started {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

.status-content_complete {
  background: rgba(17, 138, 178, 0.2);
  color: var(--info);
}

.status-attempted {
  background: rgba(255, 209, 102, 0.2);
  color: var(--warning);
}

.status-passed {
  background: rgba(190, 227, 100, 0.2);
  color: #BEE364;
}

.status-certified {
  background: rgba(0, 180, 216, 0.15);
  color: var(--teal);
}

.module-score-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.module-progress-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}

.module-progress-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 2px;
  transition: width 0.5s ease;
}

/* Final Exam Section */
.final-exam-section {
  background: var(--charcoal-light);
  border: 1px solid rgba(0, 180, 216, 0.15);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  margin-bottom: 40px;
}

.final-exam-locked .lock-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.final-exam-locked h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.final-exam-locked p {
  color: var(--text-secondary);
}

.final-exam-eligible {
  border-color: var(--teal);
  box-shadow: 0 0 24px rgba(0, 180, 216, 0.1);
}

.final-exam-eligible h3 {
  color: var(--teal);
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.final-exam-eligible p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 24px;
}

.final-exam-passed {
  border-color: var(--success);
}

.final-exam-passed h3 {
  color: var(--success);
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.final-exam-passed p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ---- Course Content ---- */
.course-content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px;
}

.course-header {
  margin-bottom: 40px;
}

.course-badges {
  display: flex;
  gap: 12px;
  align-items: center;
  margin: 16px 0;
  flex-wrap: wrap;
}

.module-badge {
  display: inline-block;
  background: var(--charcoal-mid);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.time-pill {
  display: inline-block;
  background: rgba(0, 180, 216, 0.1);
  color: var(--teal);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
}

.course-title {
  font-size: 2rem;
  margin-bottom: 12px;
}

.course-description {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.course-content {
  line-height: 1.85;
  font-size: 1.05rem;
}

.course-content p {
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.9);
}

.course-content h2 {
  font-size: 1.5rem;
  margin: 40px 0 16px;
  color: var(--white);
}

.course-content h3 {
  font-size: 1.2rem;
  margin: 28px 0 12px;
  color: var(--teal-light);
}

.course-content ul, .course-content ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.course-content li {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.85);
}

.course-content blockquote {
  border-left: 4px solid var(--gold);
  padding: 16px 24px;
  margin: 24px 0;
  background: rgba(201, 168, 76, 0.05);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--gold-light);
}

.course-content hr {
  border: none;
  height: 1px;
  background: rgba(0, 180, 216, 0.15);
  margin: 40px 0;
}

.lesson-section {
  margin-bottom: 40px;
}

.lesson-title {
  font-size: 1.6rem;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(0, 180, 216, 0.2);
  color: var(--teal);
}

/* Callout Blocks */
.callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 20px;
  border-radius: var(--radius);
  margin: 20px 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.callout-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.callout-info {
  background: rgba(0, 180, 216, 0.08);
  border-left: 4px solid var(--teal);
}

.callout-info .callout-icon {
  background: rgba(0, 180, 216, 0.2);
  color: var(--teal);
}

.callout-warning {
  background: rgba(255, 209, 102, 0.08);
  border-left: 4px solid var(--warning);
}

.callout-warning .callout-icon {
  background: rgba(255, 209, 102, 0.2);
  color: var(--warning);
}

.callout-tip {
  background: rgba(6, 214, 160, 0.08);
  border-left: 4px solid var(--success);
}

.callout-tip .callout-icon {
  background: rgba(6, 214, 160, 0.2);
  color: var(--success);
}

.callout-important {
  background: rgba(239, 71, 111, 0.08);
  border-left: 4px solid var(--error);
}

.callout-important .callout-icon {
  background: rgba(239, 71, 111, 0.2);
  color: var(--error);
}

/* Example Blocks */
.example-block {
  margin: 24px 0;
  border: 1px solid rgba(0, 180, 216, 0.15);
  border-radius: var(--radius);
  overflow: hidden;
}

.example-label {
  background: var(--charcoal-mid);
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal);
  border-bottom: 1px solid rgba(0, 180, 216, 0.15);
}

.example-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.example-panel {
  padding: 16px;
}

.example-before {
  background: rgba(255, 255, 255, 0.03);
  border-right: 1px solid rgba(0, 180, 216, 0.1);
}

.example-after {
  background: rgba(0, 180, 216, 0.05);
}

.panel-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.example-before .panel-label {
  color: var(--text-secondary);
}

.example-after .panel-label {
  color: var(--teal);
}

.panel-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
}

/* Course Action Bar */
.course-action-bar {
  display: flex;
  justify-content: center;
  padding: 32px 0;
  margin-top: 20px;
  border-top: 1px solid rgba(0, 180, 216, 0.15);
}

.scroll-sentinel {
  height: 1px;
}

/* ---- Quiz ---- */
.quiz-wrapper {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px;
}

.quiz-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.quiz-title {
  font-size: 1.3rem;
}

.quiz-counter {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.quiz-progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
  margin-bottom: 16px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.quiz-requirement {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 8px 16px;
  background: rgba(0, 180, 216, 0.05);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.question-card {
  background: var(--charcoal-light);
  border: 1px solid rgba(0, 180, 216, 0.15);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 20px;
}

.question-text {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 24px;
}

.question-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 16px 20px;
  background: var(--charcoal-mid);
  border: 2px solid rgba(0, 180, 216, 0.1);
  border-radius: var(--radius);
  color: var(--white);
  text-align: left;
  font-size: 0.95rem;
  transition: all var(--transition);
  cursor: pointer;
}

.option-btn:hover {
  border-color: rgba(0, 180, 216, 0.4);
  background: rgba(0, 180, 216, 0.05);
}

.option-selected {
  border-color: var(--teal);
  background: rgba(0, 180, 216, 0.1);
}

.option-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 700;
  flex-shrink: 0;
}

.option-selected .option-label {
  background: var(--teal);
  color: var(--charcoal);
}

.option-text {
  flex: 1;
  line-height: 1.5;
}

.quiz-answered {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.quiz-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

/* ---- Results ---- */
.results-wrapper {
  max-width: 700px;
  margin: 0 auto;
  padding: 40px 24px;
}

.score-section {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}

.score-ring {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
}

.score-ring-lg {
  width: 200px;
  height: 200px;
}

.score-inner {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--charcoal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.score-ring-lg .score-inner {
  width: 155px;
  height: 155px;
}

.score-number {
  font-size: 2.2rem;
  font-weight: 700;
  font-family: 'DM Serif Display', Georgia, serif;
}

.result-banner {
  text-align: center;
  padding: 16px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  margin-bottom: 24px;
}

.result-fail {
  background: rgba(239, 71, 111, 0.15);
  color: var(--error);
  border: 1px solid rgba(239, 71, 111, 0.3);
}

.result-pass {
  background: rgba(255, 209, 102, 0.15);
  color: var(--warning);
  border: 1px solid rgba(255, 209, 102, 0.3);
}

.result-cert {
  background: rgba(0, 180, 216, 0.15);
  color: var(--teal);
  border: 1px solid rgba(0, 180, 216, 0.3);
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 24px;
}

.stat {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.review-section {
  margin-top: 40px;
}

.review-section h3 {
  margin-bottom: 16px;
}

.review-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.review-correct {
  background: rgba(6, 214, 160, 0.08);
}

.review-incorrect {
  background: rgba(239, 71, 111, 0.08);
}

.review-indicator {
  font-size: 1.2rem;
  font-weight: 700;
  width: 28px;
  text-align: center;
}

.review-correct .review-indicator {
  color: var(--success);
}

.review-incorrect .review-indicator {
  color: var(--error);
}

.review-qnum {
  font-weight: 600;
  min-width: 36px;
}

.review-answer {
  color: var(--text-secondary);
  font-size: 0.85rem;
  flex: 1;
}

.review-correct-answer {
  color: var(--success);
  font-size: 0.85rem;
  font-weight: 600;
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

/* ---- Loading & Skeleton ---- */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  gap: 16px;
}

.loading-container p {
  color: var(--text-secondary);
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 46, 0.9);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  gap: 16px;
}

.loading-text {
  color: var(--white);
  font-size: 1.1rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 180, 216, 0.2);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 5px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.skeleton {
  background: linear-gradient(90deg, var(--charcoal-light) 25%, rgba(255,255,255,0.05) 50%, var(--charcoal-light) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius);
}

.skeleton-header {
  height: 120px;
  margin-bottom: 24px;
}

.skeleton-card {
  height: 240px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- Toast ---- */
#toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  max-width: 380px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.toast-show {
  transform: translateX(0);
}

.toast-hide {
  transform: translateX(120%);
}

.toast-info {
  background: var(--charcoal-mid);
  border-left: 4px solid var(--info);
}

.toast-success {
  background: rgba(6, 214, 160, 0.15);
  border-left: 4px solid var(--success);
  color: var(--success);
}

.toast-error {
  background: rgba(239, 71, 111, 0.15);
  border-left: 4px solid var(--error);
  color: var(--error);
}

.toast-warning {
  background: rgba(255, 209, 102, 0.15);
  border-left: 4px solid var(--warning);
  color: var(--warning);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 46, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1500;
}

.modal {
  background: var(--charcoal-light);
  border: 1px solid rgba(0, 180, 216, 0.2);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 420px;
  width: 90%;
  box-shadow: var(--shadow);
}

.modal-title {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.modal-message {
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ---- Error Container ---- */
.error-container {
  text-align: center;
  padding: 60px 24px;
  color: var(--error);
  font-size: 1.1rem;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .module-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tier-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  .module-grid {
    grid-template-columns: 1fr;
  }
  .preview-grid {
    grid-template-columns: 1fr;
  }
  .tier-cards {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .example-panels {
    grid-template-columns: 1fr;
  }
  .example-before {
    border-right: none;
    border-bottom: 1px solid rgba(0, 180, 216, 0.1);
  }
  .tier-row {
    flex-wrap: wrap;
  }
  .tier-label {
    min-width: 100%;
    margin-bottom: 4px;
  }
  .result-stats {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  .result-actions {
    flex-direction: column;
  }
  .quiz-nav {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.6rem;
  }
  .hero-ctas {
    flex-direction: column;
  }
  .auth-card {
    padding: 24px;
  }
  .dashboard-welcome {
    font-size: 1.4rem;
  }
  .question-card {
    padding: 20px;
  }
}

@media (max-width: 320px) {
  body {
    font-size: 14px;
  }
  .auth-card {
    padding: 16px;
  }
}

/* ---- Print ---- */
@media print {
  .dashboard-nav,
  .quiz-nav,
  .result-actions,
  .course-action-bar,
  #toast-container,
  #modal-container {
    display: none !important;
  }
  body {
    background: white;
    color: black;
  }
  .module-card,
  .question-card,
  .auth-card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* Timer */
.quiz-timer-bar {
  position: relative;
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  margin: 8px 0 16px;
  overflow: hidden;
}
.quiz-timer-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 4px;
  transition: width 1s linear;
}
.quiz-timer-fill.quiz-timer-critical {
  background: var(--error);
}
.quiz-timer-fill.quiz-timer-answered {
  background: var(--gold);
}
.quiz-timer-label {
  position: absolute;
  right: 8px;
  top: -18px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--teal);
}
.quiz-timer-label.quiz-timer-critical {
  color: var(--error);
  animation: pulse-text 0.5s ease-in-out infinite alternate;
}
@keyframes pulse-text {
  from { opacity: 1; }
  to { opacity: 0.4; }
}

/* Timeout states */
.question-timed-out {
  border: 2px solid var(--error);
  opacity: 0.7;
}
.timeout-notice {
  background: rgba(244,67,54,0.15);
  color: #ff6b6b;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  margin: 8px 0;
  text-align: center;
  font-weight: 600;
}
.option-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}
.timeout-summary {
  background: rgba(244,67,54,0.12);
  color: #ff6b6b;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.95rem;
  margin: 12px 0;
  text-align: center;
  border-left: 4px solid var(--error);
}
.review-timeout {
  border-left: 4px solid #ff9800;
  background: rgba(255,152,0,0.08);
}
.review-timeout-text {
  color: #ff9800;
  font-style: italic;
}
.stat-timeout {
  color: #ff6b6b;
}

/* Certificate warning */
.result-cert-warning {
  background: rgba(255,152,0,0.15);
  color: #ffb74d;
  padding: 16px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  margin: 12px 0;
  text-align: center;
  border: 1px solid rgba(255,152,0,0.3);
  line-height: 1.5;
  font-weight: 500;
}

/* Locked module */
.module-card-locked {
  opacity: 0.5;
  filter: grayscale(0.5);
  position: relative;
}
.module-card-locked .module-lock-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26,26,46,0.6);
  border-radius: inherit;
  z-index: 2;
}
.module-lock-icon {
  font-size: 2rem;
}
.module-lock-text {
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
  text-align: center;
  margin-top: 4px;
}
.cert-availability-warning {
  background: rgba(255,152,0,0.12);
  color: #ffb74d;
  padding: 14px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin: 16px 0;
  text-align: center;
  border: 1px solid rgba(255,152,0,0.25);
  line-height: 1.5;
}

/* ---- Combined Dashboard (BEM) ---- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  padding: 16px 24px;
  background: var(--charcoal-light);
  border-bottom: 1px solid rgba(0,180,216,0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header__branding {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.site-header__branding-text {
  font-family: 'DM Serif Display', Georgia, serif;
  color: var(--gold);
  font-size: 1rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.site-header__logo-img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}
.site-header__nav {
  display: flex;
  gap: 24px;
}
.site-header__nav a {
  color: var(--teal);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.site-header__nav a:hover { color: var(--white); }
.site-header__actions {
  display: flex;
  gap: 12px;
}
.btn-logout {
  background: transparent;
  border: 1px solid rgba(239,71,111,0.4);
  color: var(--error);
  padding: 6px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--transition);
}
.btn-logout:hover {
  background: rgba(239,71,111,0.15);
  border-color: var(--error);
}

.dashboard {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 60px;
}
.dashboard__heading {
  font-size: 1.8rem;
  margin: 32px 0 8px;
}
.dashboard__course-heading {
  font-size: 1.4rem;
  margin: 24px 0 8px;
  color: var(--teal);
  border-bottom: 1px solid rgba(0,180,216,0.2);
  padding-bottom: 8px;
}
.dashboard__subheading {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
}
.dashboard__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}
@media (max-width: 900px) {
  .dashboard__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .dashboard__grid { grid-template-columns: 1fr; }
}

/* Module card BEM aliases */
.module-card__number {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--teal);
  margin-bottom: 4px;
  font-weight: 700;
}
.module-card__title {
  font-size: 1rem;
  margin-bottom: 8px;
  line-height: 1.3;
}
.module-card__desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 12px;
  flex: 1;
}
.module-card__meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* Badge styles */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.badge--not-started {
  background: rgba(255,255,255,0.08);
  color: var(--text-secondary);
}
.badge--content-complete {
  background: rgba(17,138,178,0.2);
  color: var(--info);
}
.badge--attempted {
  background: rgba(255,209,102,0.2);
  color: var(--warning);
}
.badge--passed {
  background: rgba(6,214,160,0.2);
  color: var(--success);
}
.badge--certified {
  background: rgba(201,168,76,0.2);
  color: var(--gold);
}

/* Progress bar */
.progress {
  background: rgba(255,255,255,0.08);
  border-radius: 6px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 12px;
}
.progress__fill {
  height: 100%;
  background: var(--teal);
  border-radius: 6px;
  width: 0;
  transition: width 0.8s ease;
}

/* Certificate button */
.btn-certificate {
  background: linear-gradient(135deg, var(--gold), #dab862);
  color: var(--charcoal);
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  justify-content: center;
}
.btn-certificate:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201,168,76,0.4);
}
.btn-certificate__icon {
  font-weight: 700;
}

/* Full-width button */
.btn--full { width: 100%; }

/* Skeleton card */
.skeleton--card {
  background: var(--charcoal-light);
  border-radius: var(--radius-lg);
  height: 200px;
  animation: skeleton-pulse 1.5s ease infinite;
}
@keyframes skeleton-pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

/* Final Exam Card */
.final-exam-card {
  background: var(--charcoal-light);
  border: 1px solid rgba(0,180,216,0.15);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-top: 24px;
  text-align: center;
}
.final-exam-card__badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(0,180,216,0.15);
  color: var(--teal);
  margin-bottom: 12px;
}
.final-exam-card__title {
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.final-exam-card__desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.final-exam-card__requirements {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.final-exam-card__req {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
}
.final-exam-card__req-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}
.final-exam-card__req-icon--done {
  background: rgba(6,214,160,0.2);
  color: var(--success);
}
.final-exam-card__req-icon--pending {
  background: rgba(255,255,255,0.08);
  color: var(--text-secondary);
}

/* ============================================================
   COURSE 3 — ADVANCED AI
   Deep Midnight Indigo + Crimson Spark palette
   ============================================================ */

.tier-card-advanced {
  background: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
  border: 1px solid rgba(233, 69, 96, 0.3);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: left;
}

.tier-card-advanced h3 {
  color: #E94560;
}

.tier-card-advanced .tier-card-modules {
  color: #A0A0B0;
}

.modules-preview-c3 .preview-card-c3 {
}

.modules-preview-c3 .preview-card-c3:hover {
  border-color: rgba(233, 69, 96, 0.5);
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.1);
}

.modules-preview-c3 .preview-card-c3 .preview-num {
  color: #E94560;
}

/* ---- CAIRT Premium Certification Section ---- */
.cairt-premium-section {
  padding: 80px 24px;
  background: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 30%, #0a1a2e 70%, #0a0a1a 100%);
  border-top: 1px solid rgba(201, 168, 76, 0.3);
  border-bottom: 1px solid rgba(201, 168, 76, 0.3);
  position: relative;
  overflow: hidden;
}

.cairt-premium-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.cairt-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cairt-badge {
  display: inline-block;
  padding: 6px 20px;
  background: linear-gradient(135deg, rgba(201, 168, 76, 0.15), rgba(201, 168, 76, 0.05));
  border: 1px solid var(--gold);
  border-radius: 30px;
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 24px;
}

.cairt-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2.4rem;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.2;
}

.cairt-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.cairt-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.cairt-stat-item {
  text-align: center;
}

.cairt-stat-value {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2rem;
  color: var(--gold);
  font-weight: 700;
  line-height: 1;
}

.cairt-stat-label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

.cairt-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 40px;
  text-align: left;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cairt-feature {
  color: #ccc;
  font-size: 0.95rem;
  line-height: 1.5;
}

.cairt-check {
  color: var(--gold);
  font-weight: 700;
  margin-right: 8px;
}

.cairt-cta {
  display: inline-block;
  padding: 16px 48px;
  font-size: 1.05rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.3s ease;
}

.cairt-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201, 168, 76, 0.3);
}

@media (max-width: 600px) {
  .cairt-premium-section {
    padding: 48px 16px;
  }
  .cairt-title {
    font-size: 1.7rem;
  }
  .cairt-stats {
    gap: 24px;
  }
  .cairt-stat-value {
    font-size: 1.5rem;
  }
}

/* Course 3 footer copyright */
.c3-copyright {
  text-align: center;
  padding: 16px;
  color: #A0A0B0;
  font-size: 0.75rem;
  border-top: 1px solid #2A2A4A;
}