/* ==========================================================================
   HỌC VIỆN KABALA (kabala.vn/hocvien) - ACADEMY DESIGN SYSTEM
   Modern Mystic Minimalist UI/UX for Desktop, Tablet & Mobile
   ========================================================================== */

:root {
  --font-main: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  
  /* Light Theme */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-soft: #f1f5f9;
  --bg-surface-elevated: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  
  --accent-gold: #d97706;
  --accent-gold-bg: #fef3c7;
  --accent-purple: #7c3aed;
  
  --badge-beginner: #10b981;
  --badge-beginner-bg: #d1fae5;
  --badge-intermediate: #f59e0b;
  --badge-intermediate-bg: #fef3c7;
  --badge-advanced: #ef4444;
  --badge-advanced-bg: #fee2e2;

  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --card-shadow-hover: 0 16px 28px -4px rgba(79, 70, 229, 0.12), 0 8px 12px -4px rgba(0, 0, 0, 0.04);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark {
  --bg-body: #090d16;
  --bg-surface: #111827;
  --bg-surface-soft: #1e293b;
  --bg-surface-elevated: #1f293d;
  --border-color: #273549;
  --border-focus: #6366f1;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-light: #64748b;
  
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --primary-light: rgba(99, 102, 241, 0.15);
  
  --accent-gold: #fbbf24;
  --accent-gold-bg: rgba(251, 191, 36, 0.15);
  --accent-purple: #a855f7;

  --badge-beginner: #34d399;
  --badge-beginner-bg: rgba(16, 185, 129, 0.2);
  --badge-intermediate: #fbbf24;
  --badge-intermediate-bg: rgba(245, 158, 11, 0.2);
  --badge-advanced: #f87171;
  --badge-advanced-bg: rgba(239, 68, 68, 0.2);

  --card-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 16px 30px rgba(99, 102, 241, 0.25);
}

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

html, body {
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  -webkit-text-size-adjust: 100%;
}

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

a:hover {
  color: var(--primary-hover);
}

/* Container */
.academy-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation Bar */
.academy-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 0;
  transition: var(--transition);
}

body.dark .academy-nav {
  background-color: rgba(17, 24, 39, 0.85);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-main);
}

.brand-symbol {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #4f46e5, #9333ea);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-theme-toggle {
  background: var(--bg-surface-soft);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn-theme-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: rotate(15deg);
}

.btn-quiz-cta {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
  transition: var(--transition);
}

.btn-quiz-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.45);
}

/* Hero Section */
.academy-hero {
  padding: 50px 0 35px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.academy-hero::before {
  content: '';
  position: absolute;
  top: -50px;
  left: 50%;
  transform: translateX(-50%);
  width: min(500px, 100vw);
  height: 300px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--text-main) 30%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 28px;
}

/* Quiz Recommendation Banner (Shown when user finished test) */
.user-path-banner {
  display: none;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(245, 158, 11, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  margin-bottom: 30px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
}

.user-path-banner.active {
  display: flex;
}

.user-path-info h4 {
  font-size: 1.05rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-path-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.btn-reset-quiz {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Controls Bar: Search & Filters */
.controls-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 35px;
  box-shadow: var(--card-shadow);
}

.search-box-wrapper {
  position: relative;
  margin-bottom: 20px;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 1.1rem;
}

.search-input {
  width: 100%;
  padding: 14px 16px 14px 46px;
  background: var(--bg-surface-soft);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.search-input:focus {
  border-color: var(--border-focus);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.filters-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
}

.level-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-surface-soft);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 7px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.filter-btn:hover {
  color: var(--text-main);
  border-color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.view-mode-toggle {
  display: flex;
  background: var(--bg-surface-soft);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
}

.view-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

.view-btn.active {
  background: var(--bg-surface);
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(0,0,0,0.06);
}

/* Category Quick Bar */
.category-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 25px;
  scrollbar-width: none;
}

.category-pills::-webkit-scrollbar {
  display: none;
}

.cat-pill {
  white-space: nowrap;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.cat-pill:hover, .cat-pill.active {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

/* Topic Grid View */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
  margin-bottom: 50px;
}

.topic-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.topic-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: var(--card-shadow-hover);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.topic-cat-tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}

.topic-badges {
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-level {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.badge-beginner {
  background: var(--badge-beginner-bg);
  color: var(--badge-beginner);
}

.badge-intermediate {
  background: var(--badge-intermediate-bg);
  color: var(--badge-intermediate);
}

.badge-advanced {
  background: var(--badge-advanced-bg);
  color: var(--badge-advanced);
}

.badge-interactive {
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--accent-gold-bg);
  color: var(--accent-gold);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.topic-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.topic-title a {
  color: var(--text-main);
}

.topic-card:hover .topic-title a {
  color: var(--primary);
}

.topic-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  font-size: 0.82rem;
  color: var(--text-light);
}

.read-time {
  display: flex;
  align-items: center;
  gap: 6px;
}

.read-btn {
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Category Grouped View / Roadmap View */
.roadmap-container {
  display: none;
  margin-bottom: 50px;
}

.roadmap-container.active {
  display: block;
}

.category-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 30px;
  box-shadow: var(--card-shadow);
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.category-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 700;
}

.category-title i {
  color: var(--primary);
}

.roadmap-steps {
  position: relative;
  padding-left: 20px;
}

.roadmap-steps::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--border-color);
}

.roadmap-item {
  position: relative;
  padding: 12px 0 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  transition: var(--transition);
}

.roadmap-item::before {
  content: '';
  position: absolute;
  left: -15px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg-surface);
}

.roadmap-item:hover {
  transform: translateX(4px);
}

.roadmap-title {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Modal Onboarding Quiz */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open {
  display: flex;
}

.quiz-modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 620px;
  width: 100%;
  padding: 32px;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  max-height: 90vh;
  overflow-y: auto;
}

.quiz-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg-surface-soft);
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.quiz-close-btn:hover {
  background: #fee2e2;
  color: #ef4444;
}

.quiz-header {
  text-align: center;
  margin-bottom: 24px;
}

.quiz-icon {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, #f59e0b, #ec4899);
  color: #fff;
  font-size: 1.5rem;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.quiz-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.quiz-progress-bar {
  height: 6px;
  background: var(--bg-surface-soft);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  width: 25%;
  background: linear-gradient(90deg, #4f46e5, #9333ea);
  transition: width 0.3s ease;
}

.question-text {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text-main);
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.option-item {
  background: var(--bg-surface-soft);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
}

.option-item:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  transform: translateX(4px);
}

.option-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-main);
  flex-shrink: 0;
}

.option-desc {
  font-size: 0.95rem;
  color: var(--text-main);
}

/* Quiz Result Card */
.quiz-result-card {
  text-align: center;
  padding: 10px 0;
}

.result-badge {
  display: inline-block;
  background: var(--accent-gold-bg);
  color: var(--accent-gold);
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.result-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.result-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

.result-recommendations {
  text-align: left;
  background: var(--bg-surface-soft);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.result-rec-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 10px;
}

.result-rec-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border-color);
}

.result-rec-item:last-child {
  border-bottom: none;
}

/* Footer */
.academy-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 40px 0 25px;
  margin-top: 60px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

/* Common Utilities */
.d-flex { display: flex; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 14px; }
.w-100 { width: 100%; }

/* Empty State */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 50px 20px;
  background: var(--bg-surface);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .academy-container {
    padding: 0 14px;
  }
  .nav-brand {
    font-size: 1.05rem;
  }
  .brand-symbol {
    width: 32px;
    height: 32px;
    font-size: 0.95rem;
  }
  .academy-hero {
    padding: 35px 0 25px;
  }
  .hero-title {
    font-size: 1.65rem;
    line-height: 1.3;
  }
  .hero-desc {
    font-size: 0.95rem;
    padding: 0 5px;
  }
  #heroQuizBtn {
    width: 100%;
    justify-content: center;
    font-size: 0.9rem !important;
    padding: 12px 16px !important;
  }
  .topics-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .topic-card {
    padding: 18px 16px;
  }
  .card-top {
    flex-wrap: wrap;
    gap: 8px;
  }
  .topic-badges {
    flex-wrap: wrap;
    gap: 4px;
  }
  .controls-card {
    padding: 14px;
    margin-bottom: 25px;
  }
  .filters-row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .level-filters {
    overflow-x: auto;
    width: 100%;
    padding-bottom: 4px;
    scrollbar-width: none;
    flex-wrap: nowrap;
  }
  .level-filters::-webkit-scrollbar {
    display: none;
  }
  .filter-btn {
    white-space: nowrap;
    flex-shrink: 0;
  }
  .btn-quiz-cta span {
    display: none;
  }
  .btn-quiz-cta {
    padding: 8px 12px;
  }
  .user-path-banner {
    padding: 14px 16px;
  }
  #academyProgressBox {
    padding: 14px 16px;
    gap: 12px;
  }
  .progress-box-label {
    font-size: 0.88rem;
    width: 100%;
  }
  .progress-box-bar-wrap {
    min-width: 100%;
  }
  .progress-box-count {
    font-size: 0.8rem;
  }
  .quiz-modal {
    padding: 22px 16px;
    margin: 10px;
    max-width: 95vw;
  }
  /* Universal safeguard against mobile overflow */
  table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  svg {
    max-width: 100%;
    height: auto;
  }
  img {
    max-width: 100%;
    height: auto;
  }
  pre, code {
    max-width: 100%;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
  }
  .lesson-wrap, .lesson-container, .container, .article-body {
    padding-left: 14px !important;
    padding-right: 14px !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
  }
  .content-card, .article-card, section {
    padding: 18px 14px !important;
    border-radius: var(--radius-sm) !important;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.4rem;
  }
  .category-pills {
    margin-left: -14px;
    margin-right: -14px;
    padding-left: 14px;
    padding-right: 14px;
  }
  .cat-pill {
    padding: 6px 12px;
    font-size: 0.82rem;
  }
  .nav-actions {
    gap: 6px;
  }
  .btn-theme-toggle {
    width: 34px;
    height: 34px;
  }
}

/* ==========================================================================
   PROGRESS TRACKING
   ========================================================================== */
.btn-mark-done {
  background: var(--bg-surface-soft);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.btn-mark-done:hover {
  border-color: #10b981;
  color: #10b981;
}
.btn-mark-done.completed {
  background: #d1fae5;
  border-color: #10b981;
  color: #065f46;
}
body.dark .btn-mark-done.completed {
  background: #064e3b;
  color: #6ee7b7;
}
.topic-card.is-completed {
  opacity: 0.75;
  border-color: #10b981 !important;
}
.topic-card.is-completed .topic-title a {
  opacity: 0.8;
}
.roadmap-item.is-completed {
  opacity: 0.75;
}
.roadmap-item.is-completed .roadmap-title a {
  opacity: 0.8;
}
.roadmap-item.is-completed::before {
  background: #10b981 !important;
}

/* Lesson Finish Action Banner */
.lesson-complete-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 30px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  box-shadow: var(--card-shadow);
}
.btn-toggle-finish {
  background: var(--bg-surface-soft);
  border: 1.5px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.btn-toggle-finish:hover {
  border-color: #10b981;
  color: #10b981;
}
.btn-toggle-finish.is-done {
  background: #10b981;
  border-color: #10b981;
  color: #ffffff;
}

/* Academy Progress Box */
#academyProgressBox {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin-bottom: 22px;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.progress-box-label {
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.95rem;
  white-space: nowrap;
}
.progress-box-bar-wrap {
  flex: 1;
  min-width: 160px;
  background: var(--bg-surface-soft);
  border-radius: var(--radius-full);
  height: 10px;
  overflow: hidden;
}
.progress-box-bar {
  height: 100%;
  background: linear-gradient(90deg, #10b981, #059669);
  border-radius: var(--radius-full);
  transition: width 0.6s ease;
}
.progress-box-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.progress-box-reset {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}
.progress-box-reset:hover { color: #ef4444; }