/* ==========================================================================
   TrustPoint Finance Academy — Interactive Course Player Styles (V2)
   Design: Dark Professional Financial Theme • High Contrast • Fully Responsive
   ========================================================================== */

:root {
  --bg-dark-primary: #0A1128;
  --bg-dark-secondary: #101F42;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border-subtle: rgba(255, 255, 255, 0.12);
  --border-active: #38BDF8;
  
  --accent-green: #00E676;
  --accent-green-glow: rgba(0, 230, 118, 0.25);
  --accent-blue: #0052FF;
  --accent-sky: #38BDF8;
  --accent-red: #EF4444;
  --accent-yellow: #FBBF24;
  
  --text-primary: #FFFFFF;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(0, 230, 118, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at 50% 0%, #172554 0%, #0A1128 60%, #050814 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ── Top Navbar ── */
.academy-nav {
  height: 70px;
  background: rgba(10, 17, 40, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 2px solid var(--accent-green);
  object-fit: cover;
  box-shadow: 0 0 10px var(--accent-green-glow);
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--accent-sky);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.lesson-indicator {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.lesson-indicator span {
  color: var(--accent-green);
}

.progress-track {
  width: 280px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #0052FF, #00E676);
  width: 8.33%;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-sky);
  color: var(--text-primary);
}

/* ── Main Presentation Canvas ── */
.player-container {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 24px 90px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

/* ── Screen Card Base ── */
.screen-card {
  background: rgba(16, 31, 66, 0.65);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  min-height: 580px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  animation: fadeIn 0.3s ease-out forwards;
}

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

.screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 16px;
}

.screen-badge {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-sky);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.screen-step {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.screen-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.screen-title span {
  color: var(--accent-green);
}

.screen-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ── Specific Screen Styles ── */

/* 1. TITLE SCREEN */
.title-hero {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.title-tagline {
  font-size: 1.35rem;
  color: var(--accent-sky);
  font-weight: 600;
  margin-bottom: 20px;
}
.title-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 30px;
}
.objectives-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: left;
  margin-bottom: 30px;
}
.objectives-card h3 {
  font-size: 1rem;
  color: var(--accent-green);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.objectives-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.objectives-list li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.objectives-list li::before {
  content: "✓";
  color: var(--accent-green);
  font-weight: bold;
}

/* 2. CONCEPT SCREEN (Reveal Cards) */
.core-concept-box {
  background: linear-gradient(90deg, rgba(0, 82, 255, 0.15) 0%, rgba(0, 230, 118, 0.15) 100%);
  border-left: 4px solid var(--accent-green);
  padding: 18px 24px;
  border-radius: var(--radius-sm);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.reveal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}
.reveal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
}
.reveal-card:hover, .reveal-card.active {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-sky);
  transform: translateY(-3px);
}
.reveal-card.active {
  border-color: var(--accent-green);
  box-shadow: 0 0 15px rgba(0, 230, 118, 0.15);
}
.card-icon {
  font-size: 1.8rem;
  color: var(--accent-sky);
  margin-bottom: 12px;
}
.reveal-card.active .card-icon {
  color: var(--accent-green);
}
.reveal-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.reveal-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* 3. FLOW SCREEN */
.flow-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.flow-svg-box {
  width: 100%;
  max-height: 280px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--border-subtle);
  display: flex;
  justify-content: center;
}
.flow-svg-box img, .flow-svg-box svg {
  max-width: 100%;
  height: auto;
}
.flow-formula-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 24px;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-sky);
}
.flow-formula-bar span {
  color: var(--accent-green);
}

/* 4. NUMERICAL CALCULATOR SCREEN */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.calc-controls {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.calc-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.calc-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  font-weight: 600;
}
.calc-val {
  color: var(--accent-green);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
}
.calc-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}
.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green-glow);
  cursor: pointer;
  border: 2px solid #FFFFFF;
}
.calc-slider.red::-webkit-slider-thumb {
  background: var(--accent-red);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
}
.calc-result-box {
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid var(--accent-green);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-glow);
  transition: all 0.3s ease;
}
.calc-result-box.loss {
  border-color: var(--accent-red);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.25);
}
.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--text-secondary);
}
.result-item.highlight {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}
.result-num {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
}
.result-num.profit { color: var(--accent-green); }
.result-num.loss { color: var(--accent-red); }

/* 5. SCENARIO SCREEN */
.scenario-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 28px;
}
.scenario-dilemma {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
}
.dilemma-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 18px 0;
}
.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}
.stat-row b { color: var(--accent-sky); }
.scenario-choices {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.scenario-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: var(--text-primary);
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.4;
}
.scenario-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-sky);
}
.scenario-btn.correct {
  background: rgba(0, 230, 118, 0.15);
  border-color: var(--accent-green);
  color: #FFFFFF;
}
.scenario-btn.wrong {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--accent-red);
}
.feedback-box {
  margin-top: 14px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
  display: none;
}
.feedback-box.show { display: block; animation: fadeIn 0.2s ease; }
.feedback-box.correct { background: rgba(0, 230, 118, 0.15); border: 1px solid var(--accent-green); color: #A7F3D0; }
.feedback-box.wrong { background: rgba(239, 68, 68, 0.15); border: 1px solid var(--accent-red); color: #FECACA; }

/* 6. COMPARISON SCREEN */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 20px;
}
.comp-column {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.comp-column.debt { border-top: 4px solid var(--accent-sky); }
.comp-column.equity { border-top: 4px solid var(--accent-green); }
.comp-column h3 {
  font-size: 1.15rem;
  margin-bottom: 16px;
}
.comp-column.debt h3 { color: var(--accent-sky); }
.comp-column.equity h3 { color: var(--accent-green); }
.comp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
  flex: 1;
}
.comp-list li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.4;
  padding-left: 20px;
  position: relative;
}
.comp-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-sky);
  font-size: 1.2rem;
}
.comp-column.equity .comp-list li::before {
  color: var(--accent-green);
}
.comp-risk-tag {
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-muted);
  border-left: 2px solid var(--accent-yellow);
}

/* 7. MYTH VS FACT */
.myths-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.myth-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 20px;
}
.myth-side {
  color: #FCA5A5;
  font-size: 0.95rem;
  line-height: 1.5;
  border-left: 3px solid var(--accent-red);
  padding-left: 14px;
}
.fact-side {
  color: #A7F3D0;
  font-size: 0.95rem;
  line-height: 1.5;
  border-left: 3px solid var(--accent-green);
  padding-left: 14px;
}

/* 8. RECAP SCREEN */
.recap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
.recap-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
}
.recap-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-green);
  line-height: 1;
}
.recap-text h4 {
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.recap-text p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.next-teaser-box {
  background: linear-gradient(90deg, rgba(0, 82, 255, 0.2) 0%, rgba(10, 17, 40, 0.4) 100%);
  border: 1px solid rgba(0, 82, 255, 0.4);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 9. QUIZ SCREEN */
.quiz-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.quiz-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 12px;
}
.quiz-question-box {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 12px;
}
.quiz-options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.quiz-option {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.2s ease;
}
.quiz-option:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-sky);
}
.quiz-option.selected {
  background: rgba(0, 82, 255, 0.15);
  border-color: #0052FF;
  color: var(--text-primary);
}
.quiz-option.correct {
  background: rgba(0, 230, 118, 0.15);
  border-color: var(--accent-green);
  color: #FFFFFF;
}
.quiz-option.wrong {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--accent-red);
}
.opt-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.8rem;
  font-weight: 700;
}
.quiz-option.selected .opt-circle {
  border-color: #0052FF;
  background: #0052FF;
  color: #FFFFFF;
}
.quiz-option.correct .opt-circle {
  border-color: var(--accent-green);
  background: var(--accent-green);
  color: #0A1128;
}
.quiz-option.wrong .opt-circle {
  border-color: var(--accent-red);
  background: var(--accent-red);
  color: #FFFFFF;
}
.quiz-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
}
.btn-hint {
  background: transparent;
  border: none;
  color: var(--accent-sky);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}
.hint-text {
  background: rgba(56, 189, 248, 0.1);
  border-left: 3px solid var(--accent-sky);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--accent-sky);
  margin-top: 10px;
  display: none;
}
.hint-text.show { display: block; }
.quiz-explanation-box {
  background: rgba(0, 230, 118, 0.1);
  border: 1px solid var(--accent-green);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.9rem;
  color: #A7F3D0;
  line-height: 1.5;
  margin-top: 14px;
  display: none;
}
.quiz-explanation-box.show { display: block; }

/* 10. COMPLETION SCREEN */
.completion-container {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.badge-trophy {
  font-size: 4.5rem;
  animation: bounce 0.6s ease-in-out;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.score-card {
  background: var(--bg-card);
  border: 2px solid var(--accent-green);
  border-radius: var(--radius-md);
  padding: 20px 40px;
  box-shadow: var(--shadow-glow);
}
.score-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-green);
}
.unlock-badge {
  background: rgba(0, 230, 118, 0.15);
  border: 1px solid var(--accent-green);
  color: var(--accent-green);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}
.download-links-row {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}
.btn-download {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 20px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}
.btn-download:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-sky);
  color: var(--accent-sky);
}

/* ── Fixed Bottom Navigation Bar ── */
.player-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(10, 17, 40, 0.92);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  z-index: 40;
}
.nav-btn {
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.2s ease;
  border: none;
}
.btn-prev {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.btn-prev:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}
.btn-prev:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-next {
  background: #0052FF;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 82, 255, 0.4);
}
.btn-next:hover {
  background: #0043D1;
  transform: translateY(-1px);
}
.screen-dots {
  display: flex;
  gap: 8px;
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all 0.2s ease;
}
.dot.active {
  background: var(--accent-green);
  transform: scale(1.3);
  box-shadow: 0 0 8px var(--accent-green);
}

/* ── Curriculum Drawer Modal ── */
.curriculum-drawer {
  position: fixed;
  top: 0;
  right: -420px;
  width: 400px;
  height: 100vh;
  background: #0D1630;
  border-left: 1px solid var(--border-subtle);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.6);
}
.curriculum-drawer.open { right: 0; }
.drawer-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.drawer-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}
.drawer-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.drawer-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
  transition: all 0.2s ease;
}
.drawer-item.active {
  border-color: var(--accent-sky);
  background: rgba(56, 189, 248, 0.1);
  color: #FFFFFF;
}
.drawer-item.completed {
  border-color: var(--accent-green);
}
.drawer-item.locked {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}
.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 90;
  display: none;
}
.drawer-backdrop.show { display: block; }

/* ── Responsive Breakpoints ── */
@media (max-width: 1024px) {
  .player-container { padding: 16px 16px 80px 16px; }
  .screen-card { padding: 32px; min-height: 520px; }
  .calc-grid, .scenario-grid, .comparison-grid, .myth-card {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .academy-nav { padding: 0 16px; }
  .progress-track { width: 140px; }
  .screen-card { padding: 24px 18px; min-height: 480px; }
  .screen-title { font-size: 1.45rem; }
  .reveal-grid { grid-template-columns: 1fr; }
  .recap-grid { grid-template-columns: 1fr; }
  .player-bottom-bar { padding: 0 16px; }
  .screen-dots { display: none; }
  .download-links-row { flex-direction: column; }
  .curriculum-drawer { width: 100%; right: -100%; }
}

@media (max-width: 540px) {
  .academy-nav {
    padding: 0 10px;
    height: 60px;
  }
  .nav-brand .brand-logo {
    width: 34px;
    height: 34px;
  }
  .nav-brand .brand-text span {
    display: none;
  }
  .nav-center {
    display: none;
  }
  .nav-actions {
    gap: 8px;
  }
  .nav-actions .screen-step {
    font-size: 0.72rem;
  }
  .nav-actions .btn-icon span {
    display: none;
  }
  .nav-actions .btn-icon {
    padding: 6px 10px;
  }
  .player-bottom-bar {
    padding: 0 10px;
    height: 60px;
  }
  .nav-btn {
    padding: 8px 12px;
    font-size: 0.82rem;
  }
}

/* ── CANDIDATE AUTHENTICATION & STATUS ────────────────────────── */
.candidate-status {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.candidate-mobile {
  font-family: monospace;
  color: var(--accent-green);
  font-weight: 600;
}
.btn-logout {
  background: transparent;
  border: none;
  color: #EF4444;
  cursor: pointer;
  padding: 2px 4px;
  font-size: 0.85rem;
  border-radius: 4px;
  transition: all var(--transition-fast);
}
.btn-logout:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #F87171;
}

/* Auth Modal Backdrop */
.auth-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.auth-modal-card {
  background: #0F172A;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  border-radius: 16px;
  width: 100%;
  max-width: 440px;
  overflow: hidden;
  animation: authModalFade 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes authModalFade {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.auth-header {
  padding: 28px 24px 20px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, rgba(2, 6, 23, 0.5) 0%, rgba(15, 23, 42, 0) 100%);
}
.auth-logo {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  margin-bottom: 12px;
}
.auth-header h2 {
  font-size: 1.25rem;
  color: #FFFFFF;
  margin-bottom: 6px;
  font-weight: 700;
}
.auth-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.auth-body {
  padding: 24px;
}
.auth-step-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}
.input-mobile-group {
  display: flex;
  align-items: center;
  background: #1E293B;
  border: 1px solid #334155;
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.input-mobile-group:focus-within {
  border-color: var(--accent-green);
  box-shadow: 0 0 0 2px rgba(0, 230, 118, 0.2);
}
.country-prefix {
  padding: 12px 14px;
  background: #0F172A;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  border-right: 1px solid #334155;
}
.auth-input {
  width: 100%;
  padding: 12px 14px;
  background: transparent;
  border: none;
  color: #FFFFFF;
  font-size: 1rem;
  outline: none;
}
.auth-input::placeholder {
  color: #64748B;
}
.otp-code-input {
  background: #1E293B;
  border: 1px solid #334155;
  border-radius: 8px;
  text-align: center;
  font-size: 1.5rem;
  letter-spacing: 6px;
  font-weight: 700;
}
.otp-code-input:focus {
  border-color: var(--accent-green);
  box-shadow: 0 0 0 2px rgba(0, 230, 118, 0.2);
}
.btn-auth-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px;
  background: var(--accent-green);
  color: #0A1128;
  font-size: 0.95rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 6px;
}
.btn-auth-primary:hover {
  background: #00C853;
  transform: translateY(-1px);
}
.btn-auth-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}
.otp-sent-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.otp-timer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #94A3B8;
}
.btn-link {
  background: transparent;
  border: none;
  color: #38BDF8;
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: underline;
  padding: 0;
}
.btn-link:hover {
  color: #7DD3FC;
}
.auth-error {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  color: #FCA5A5;
  font-size: 0.85rem;
  line-height: 1.4;
}
.auth-footer {
  padding: 14px 20px;
  background: rgba(2, 6, 23, 0.4);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.75rem;
  color: #64748B;
}

@media (max-width: 480px) {
  .auth-modal-backdrop {
    padding: 12px;
  }
  .auth-header {
    padding: 20px 16px 16px;
  }
  .auth-header h2 {
    font-size: 1.1rem;
  }
  .auth-body {
    padding: 16px;
  }
  .country-prefix {
    padding: 10px 12px;
    font-size: 0.9rem;
  }
  .auth-input {
    padding: 10px 12px;
    font-size: 0.95rem;
  }
  .otp-code-input {
    font-size: 1.3rem;
    letter-spacing: 4px;
  }
}