/* ==========================================================================
   AROKRD CODEACADEMY - DESIGN SYSTEM & STYLESHEET
   Aesthetic: Cyber-Glassmorphism, Vibrant Neon Accents, Ultra-Crisp Typography
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-core: #070a12;
  --bg-surface: #0e1424;
  --bg-surface-elevated: #161f36;
  --bg-glass: rgba(16, 24, 44, 0.75);
  --bg-glass-card: rgba(22, 31, 54, 0.65);
  --bg-glass-hover: rgba(30, 43, 75, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(56, 189, 248, 0.35);
  --border-glass: rgba(255, 255, 255, 0.12);

  /* Neon Brand Accents */
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --primary-glow: rgba(56, 189, 248, 0.4);
  --secondary: #818cf8;
  --secondary-glow: rgba(129, 140, 248, 0.35);
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #c084fc;

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-code: #e2e8f0;

  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Shadows & Glass */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 36px -8px rgba(0, 0, 0, 0.5);
  --shadow-neon: 0 0 25px rgba(56, 189, 248, 0.25);
  --glass-blur: blur(14px);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-core);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(56, 189, 248, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(129, 140, 248, 0.08) 0%, transparent 40%),
    linear-gradient(to bottom, #070a12, #0a0f1c 100%);
  background-attachment: fixed;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-core);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */

.app-navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 2.5rem;
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.brand-logo-glow {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 0 16px var(--primary-glow);
}

.brand-text h1 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, #ffffff, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Profile & XP Pill */
.user-xp-badge {
  display: flex;
  align-items: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.85rem;
  gap: 0.75rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.user-xp-badge:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
  box-shadow: 0 0 15px var(--primary-glow);
}

.user-avatar-pill {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, #0284c7, #6366f1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
}

.user-stat-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.user-stat-item.xp {
  color: var(--primary);
}

.user-stat-item.streak {
  color: #fb923c;
}

.user-level-chip {
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 700;
}

.switch-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  border-left: 1px solid var(--border-subtle);
  padding-left: 0.5rem;
}

/* ==========================================================================
   BUTTONS & FORM ELEMENTS
   ========================================================================== */

button {
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  outline: none;
  transition: var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #0284c7);
  color: #070a12;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-completed {
  background: rgba(16, 185, 129, 0.2) !important;
  color: #34d399 !important;
  border-color: #34d399 !important;
}

.btn-locked {
  background: var(--bg-surface-elevated) !important;
  color: var(--text-muted) !important;
  border: 1px solid var(--border-subtle) !important;
  box-shadow: none !important;
  cursor: not-allowed;
  opacity: 0.7;
}

.btn-locked:hover {
  transform: none !important;
  filter: none !important;
  box-shadow: none !important;
}

.btn-icon {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-banner {
  padding: 4rem 2rem 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1.5rem;
  animation: pulse-glow 3s infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 10px rgba(56, 189, 248, 0.2); }
  50% { box-shadow: 0 0 20px rgba(56, 189, 248, 0.5); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-title span {
  background: linear-gradient(135deg, #38bdf8, #818cf8, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

/* Quick Search & Filter Toolbar */
.catalog-controls {
  max-width: 1200px;
  margin: 0 auto 2.5rem;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.search-box-wrap {
  position: relative;
  width: 100%;
}

.search-box-wrap input {
  width: 100%;
  padding: 0.95rem 1.25rem 0.95rem 3rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-main);
  transition: var(--transition-fast);
}

.search-box-wrap input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 20px var(--primary-glow);
  background: var(--bg-surface-elevated);
}

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

.filter-chips-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-chip {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
}

.filter-chip.active {
  background: var(--primary);
  color: #070a12;
  border-color: var(--primary);
  font-weight: 700;
  box-shadow: 0 2px 10px var(--primary-glow);
}

/* ==========================================================================
   COURSE CATALOG CARDS GRID
   ========================================================================== */

.courses-grid-container {
  max-width: 1280px;
  margin: 0 auto 5rem;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.75rem;
}

.course-card {
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.course-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-color, var(--primary));
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.7), 0 0 20px rgba(56, 189, 248, 0.15);
  background: var(--bg-glass-hover);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.course-icon {
  font-size: 2.2rem;
  line-height: 1;
}

.badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
}

.badge-frontend { background: rgba(56, 189, 248, 0.15); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.badge-backend { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-systems { background: rgba(192, 132, 252, 0.15); color: #c084fc; border: 1px solid rgba(192, 132, 252, 0.3); }
.badge-data-ai { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-tools { background: rgba(148, 163, 184, 0.15); color: #cbd5e1; border: 1px solid rgba(148, 163, 184, 0.3); }

.course-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  line-height: 1.3;
}

.course-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.meta-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--bg-surface-elevated);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.quiz-score-tag {
  font-size: 0.78rem;
  color: #34d399;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-weight: bold;
}

.course-progress-wrap {
  margin-bottom: 1.25rem;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

.btn-launch-course {
  width: 100%;
  justify-content: center;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-glass-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}
.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

/* ==========================================================================
   COURSE & LESSON VIEWER
   ========================================================================== */

.course-view-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem 2rem 4rem;
}

/* Course Header / Back bar */
.course-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.active-course-heading {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.course-overall-progress {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.top-progress-bar {
  width: 140px;
  height: 8px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.top-progress-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
}

/* Main Dual-Pane Layout */
.course-workspace-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* Sidebar Syllabus */
.syllabus-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  position: sticky;
  top: 85px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}

.syllabus-heading {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.module-group {
  margin-bottom: 1.25rem;
}

.module-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.5px;
}

.syllabus-lesson-item {
  display: flex;
  align-items: center;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.35rem;
  gap: 0.65rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.syllabus-lesson-item:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.syllabus-lesson-item.active {
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary);
  font-weight: 600;
  border-left: 3px solid var(--primary);
}

.syllabus-lesson-item.completed .status-icon {
  color: var(--accent-emerald);
  font-weight: bold;
}

.status-icon {
  font-size: 0.9rem;
  width: 16px;
  text-align: center;
}

.syllabus-lesson-item .title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.xp-tag {
  font-size: 0.7rem;
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.12);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

/* Main Content Workspace */
.workspace-main-panel {
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* Tabs Header */
.workspace-tabs-header {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-glass);
  padding: 0 1rem;
}

.content-tab-btn {
  background: none;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 1rem 1.4rem;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.content-tab-btn:hover {
  color: var(--text-primary);
}

.content-tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: rgba(56, 189, 248, 0.05);
}

/* Tab Content Panes */
.tab-pane {
  padding: 2rem;
}

.tab-pane.hidden {
  display: none !important;
}

/* Lesson Reader Styling */
.lesson-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

.lesson-title-display {
  font-size: 1.6rem;
  font-weight: 800;
}

.lesson-markdown-body {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.doc-h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.75rem 0 0.85rem;
}

.doc-h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  margin: 1.5rem 0 0.65rem;
}

.lesson-markdown-body p {
  margin-bottom: 1rem;
}

.lesson-markdown-body ul {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.lesson-markdown-body li {
  margin-bottom: 0.5rem;
}

.inline-code {
  font-family: var(--font-mono);
  background: var(--bg-surface-elevated);
  color: var(--primary);
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.code-block-wrap {
  background: #090e1a;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin: 1.25rem 0;
  overflow: hidden;
}

.code-lang-label {
  background: var(--bg-surface-elevated);
  padding: 0.35rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border-subtle);
}

.code-block {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-code);
  overflow-x: auto;
  line-height: 1.6;
}

/* ==========================================================================
   PEDAGOGICAL COMPREHENSION COMPONENTS (ELI5, BREAKDOWNS, MISSIONS, MISTAKES)
   ========================================================================== */

/* 1. Real-World Analogy (ELI5) Box */
.analogy-card {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(56, 189, 248, 0.08));
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-left: 4px solid var(--accent-amber);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.analogy-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: #fbbf24;
  margin-bottom: 0.65rem;
}

.analogy-body {
  color: #f1f5f9;
  font-size: 0.95rem;
  line-height: 1.65;
}

/* 2. Line-By-Line Code Breakdown */
.code-breakdown-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: #090e1a;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-breakdown-table th, .code-breakdown-table td {
  padding: 0.85rem 1.15rem;
  text-align: left;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-subtle);
}

.code-breakdown-table th {
  background: var(--bg-surface-elevated);
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.code-breakdown-table td.code-col {
  font-family: var(--font-mono);
  color: #38bdf8;
  white-space: nowrap;
  width: 38%;
  background: rgba(56, 189, 248, 0.03);
}

.code-breakdown-table td.plain-col {
  color: var(--text-secondary);
}

/* 3. Common Mistake vs Pro Fix */
.mistake-fix-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.mistake-box {
  background: rgba(244, 63, 94, 0.08);
  border: 1px solid rgba(244, 63, 94, 0.3);
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

.mistake-title {
  color: #fb7185;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.fix-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

.fix-title {
  color: #34d399;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 4. Interactive Practice Mission & Hint */
.mission-card {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(6, 182, 212, 0.08));
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.5rem;
  margin: 1.75rem 0;
}

.mission-title {
  color: #34d399;
  font-size: 1.1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.mission-text {
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.mission-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hint-container, .solution-container {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.hint-container { border-left: 3px solid #fbbf24; color: #fde68a; }
.solution-container { border-left: 3px solid #34d399; color: #a7f3d0; font-family: var(--font-mono); }

/* Lesson Actions */
.lesson-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   CODE PLAYGROUND & CONSOLE RUNNER
   ========================================================================== */

.playground-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.editor-mode-tab {
  background: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

.editor-mode-tab.active {
  background: var(--bg-surface-elevated);
  color: var(--primary);
}

.playground-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  height: 480px;
}

.editor-code-container {
  background: #090e1a;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.editor-panel-header {
  background: var(--bg-surface-elevated);
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
}

#code-editor-input {
  flex: 1;
  width: 100%;
  padding: 1rem;
  background: transparent;
  color: #e0e7ff;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.5;
  resize: none;
  outline: none;
}

.editor-output-container {
  background: #090e1a;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#preview-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: #ffffff;
}

#console-output {
  flex: 1;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-y: auto;
  background: #060911;
}

.console-item {
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.console-item.system { color: var(--text-muted); }
.console-item.log { color: #38bdf8; }
.console-item.error { color: #f87171; }
.console-item.warn { color: #fbbf24; }

/* ==========================================================================
   QUIZ & KNOWLEDGE CHECK
   ========================================================================== */

.quiz-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.quiz-header {
  text-align: center;
  margin-bottom: 2rem;
}

.quiz-header h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.quiz-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.q-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.q-options {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.quiz-opt-btn {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-align: left;
  transition: var(--transition-fast);
}

.quiz-opt-btn:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-glow);
}

.quiz-opt-btn.selected {
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.15);
  color: var(--primary);
}

.quiz-opt-btn.correct-choice {
  border-color: var(--accent-emerald) !important;
  background: rgba(16, 185, 129, 0.2) !important;
  color: #34d399 !important;
}

.quiz-opt-btn.wrong-choice {
  border-color: var(--accent-rose) !important;
  background: rgba(244, 63, 94, 0.2) !important;
  color: #fb7185 !important;
}

.opt-letter {
  background: rgba(255, 255, 255, 0.08);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.q-explanation {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  line-height: 1.5;
}

.q-explanation.correct {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.q-explanation.incorrect {
  background: rgba(244, 63, 94, 0.12);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: #fb7185;
}

.quiz-footer {
  text-align: center;
  margin-top: 2rem;
}

/* Cheat Sheet Grid */
.cheatsheet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.cheat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.cheat-term {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--primary);
  display: block;
  margin-bottom: 0.5rem;
}

.cheat-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   MULTI-USER PROFILE SWITCHER STYLES
   ========================================================================== */

.profiles-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.profile-card-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.profile-card-item:hover {
  background: var(--bg-glass-hover);
  border-color: var(--primary);
}

.profile-card-item.active-profile {
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.12);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.18);
}

.profile-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0284c7, #818cf8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.profile-info {
  flex: 1;
}

.profile-name-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.profile-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.active-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-full);
}

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

.profile-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.current-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
}

.btn-delete-profile {
  background: none;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

.btn-delete-profile:hover {
  opacity: 1;
  transform: scale(1.1);
}

.avatar-picker-row {
  display: flex;
  gap: 0.5rem;
  margin: 0.5rem 0 1rem;
  flex-wrap: wrap;
}

.avatar-choice-btn {
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.avatar-choice-btn:hover {
  transform: scale(1.15);
  border-color: var(--primary);
}

.avatar-choice-btn.selected {
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.25);
  box-shadow: 0 0 12px var(--primary-glow);
}

/* ==========================================================================
   MODALS: FRIEND STUDY HUB & CERTIFICATE
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(7, 10, 18, 0.8);
  backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modal-appear 0.25s ease-out;
}

@keyframes modal-appear {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-body {
  padding: 1.75rem;
}

.friends-leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.leaderboard-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  gap: 1rem;
}

.leaderboard-item.current-user-row {
  border-color: var(--primary);
  background: rgba(56, 189, 248, 0.1);
}

.leaderboard-item .rank {
  font-weight: 800;
  font-size: 1.1rem;
  width: 32px;
  text-align: center;
}

.leaderboard-item .avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.leaderboard-item .info {
  flex: 1;
}

.leaderboard-item .name-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.leaderboard-item .name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.leaderboard-item .badge-tag {
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.leaderboard-item .meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.leaderboard-item .score {
  font-weight: 800;
  color: var(--primary);
  font-size: 1.05rem;
}

.friend-tools-section {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1.25rem;
}

.friend-tools-section h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.65rem;
}

.input-with-btn {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.input-with-btn input {
  flex: 1;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.88rem;
}

.cert-canvas-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  margin-bottom: 1.5rem;
}

#certificate-canvas {
  width: 100%;
  height: auto;
  display: block;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--primary);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.25s ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.toast-success { border-left-color: var(--accent-emerald); }
.toast-streak { border-left-color: #fb923c; }
.toast-level-up { border-left-color: var(--accent-purple); }

/* Floating XP Popup */
.xp-floating-popup {
  position: fixed;
  top: 75px;
  right: 40px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(129, 140, 248, 0.2));
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-full);
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-neon);
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

.xp-floating-popup.show {
  opacity: 1;
  transform: translateY(0);
}

.xp-floating-popup span {
  font-weight: 800;
  font-size: 1.1rem;
}

.xp-floating-popup small {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Confetti */
.confetti-piece {
  position: fixed;
  top: -10px;
  width: 10px;
  height: 10px;
  opacity: 0.9;
  z-index: 9999;
  animation: confetti-fall 2.5s linear forwards;
}

@keyframes confetti-fall {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

/* ==========================================================================
   0-TO-100 DEEP MASTERCLASS STYLES (UNDER THE HOOD, BUG HUNTS, STAGES)
   ========================================================================== */

.stage-badge {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-right: 0.5rem;
}
.stage-1 { background: rgba(56, 189, 248, 0.2); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.4); }
.stage-2 { background: rgba(16, 185, 129, 0.2); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }
.stage-3 { background: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }
.stage-4 { background: rgba(192, 132, 252, 0.2); color: #c084fc; border: 1px solid rgba(192, 132, 252, 0.4); box-shadow: 0 0 10px rgba(192, 132, 252, 0.3); }

/* Under The Hood Engine Deep-Dive Box */
.under-the-hood-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.6rem;
  margin: 1.75rem 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.under-the-hood-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1.05rem;
  color: #38bdf8;
  margin-bottom: 0.75rem;
}

.under-the-hood-body {
  color: #cbd5e1;
  font-size: 0.92rem;
  line-height: 1.7;
}

/* Interactive Bug Hunt Scenario Box */
.bug-hunt-card {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(15, 23, 42, 0.8));
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-left: 4px solid var(--accent-rose);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.5rem;
  margin: 1.75rem 0;
}

.bug-hunt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.bug-hunt-title {
  color: #fb7185;
  font-size: 1.05rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bug-hunt-badge {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
}

.bug-hunt-code {
  background: #090e1a;
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #fca5a5;
  margin: 0.75rem 0;
  overflow-x: auto;
}

.bug-hunt-solution-box {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: #6ee7b7;
}

.hidden {
  display: none !important;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .course-workspace-layout {
    grid-template-columns: 1fr;
  }
  .syllabus-panel {
    position: static;
    max-height: none;
  }
  .playground-split-grid {
    grid-template-columns: 1fr;
    height: auto;
  }
  .editor-code-container, .editor-output-container {
    height: 320px;
  }
  .mistake-fix-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .app-navbar {
    padding: 0.75rem 1rem;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .courses-grid-container {
    grid-template-columns: 1fr;
    padding: 0 1rem;
  }
  .catalog-controls {
    padding: 0 1rem;
  }
  .top-bar-left {
    flex-direction: column;
    align-items: flex-start;
  }
  .switch-hint {
    display: none;
  }
}

/* ==========================================================================
   PROGRESS DASHBOARD
   ========================================================================== */

.progress-dashboard {
  max-width: 1360px;
  margin: 0 auto 2rem;
  padding: 0 2rem;
}

.dashboard-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.dashboard-header h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.dashboard-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.dashboard-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent-emerald));
  opacity: 0.7;
}

.stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-neon);
}

.stat-icon {
  font-size: 1.6rem;
  margin-bottom: 0.4rem;
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-mono);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

.dashboard-course-progress {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0.75rem;
}

.dash-course-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  transition: var(--transition-base);
}

.dash-course-item:hover {
  border-color: var(--border-glow);
  background: var(--bg-glass-hover);
}

.dash-course-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 2rem;
  text-align: center;
}

.dash-course-info {
  flex: 1;
  min-width: 0;
}

.dash-course-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dash-course-bar-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.3rem;
}

.dash-progress-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

.dash-progress-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  background: linear-gradient(90deg, var(--primary), var(--accent-emerald));
}

.dash-progress-pct {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  min-width: 2.5rem;
  text-align: right;
}

/* Responsive Dashboard */
@media (max-width: 768px) {
  .progress-dashboard {
    padding: 0 1rem;
  }
  .dashboard-header {
    flex-direction: column;
    gap: 0.25rem;
  }
  .dashboard-stats-row {
    grid-template-columns: repeat(3, 1fr);
  }
  .dashboard-course-progress {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .dashboard-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
}