/* ========================================
   MOBILE OPTIMIZATION CSS
   Responsive design untuk semua fitur
   ======================================== */

/* ========================================
   1. GLOBAL MOBILE IMPROVEMENTS
   ======================================== */

@media (max-width: 768px) {
  /* Reduce body padding on mobile */
  body {
    padding: 0 !important;
    margin: 0 !important;
    box-sizing: border-box;
    overflow-x: hidden !important;
    width: 100%;
  }

  /* Container adjustments - CRITICAL FIX */
  .container-view {
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 0 !important;
    box-sizing: border-box !important;
    border-left: none !important;
    border-right: none !important;
  }

  /* Typography scaling */
  h1 {
    font-size: 1.75rem;
    line-height: 1.3;
  }

  h2 {
    font-size: 1.5rem;
    line-height: 1.3;
  }

  h3 {
    font-size: 1.25rem;
    line-height: 1.4;
  }

  h4 {
    font-size: 1.1rem;
  }

  /* Button improvements */
  button {
    padding: 12px 20px;
    font-size: 0.95rem;
    min-height: 44px; /* Touch-friendly */
  }

  /* ========================================
     MAIN MENU CONTAINER - MOBILE
     ======================================== */
  
  #main-menu-container {
    padding: 15px !important;
    max-width: 100%;
    margin: 0 !important;
    box-sizing: border-box;
    width: 100%;
  }

  #main-menu-welcome-user {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.3;
  }

  #main-menu-container h3 {
    font-size: 1.05rem;
    margin-bottom: 18px;
    color: var(--text-light);
    font-weight: 600;
  }

  /* ========================================
     DAILY STATS PANEL - MOBILE (1 COLUMN)
     ======================================== */
  
  #daily-stats-panel {
    margin-bottom: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 15px;
    border-radius: 12px;
    border: 1px solid #dee2e6;
  }

  .stats-row {
    display: grid;
    grid-template-columns: 1fr; /* 1 Column Vertical */
    gap: 12px;
    margin-bottom: 15px;
  }

  /* Stat Card: Horizontal Layout (Icon Left, Text Right) */
  .stat-card {
    display: grid; 
    grid-template-columns: 50px 1fr; /* Icon width fixed, content fluid */
    grid-template-rows: auto auto;
    grid-template-areas: 
      "icon value"
      "icon label";
    align-items: center;
    background: white;
    padding: 15px; /* Comfortable padding */
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #e9ecef;
    text-align: left;
    width: 100%;
    box-sizing: border-box;
    column-gap: 15px;
  }

  .stat-icon {
    grid-area: icon;
    font-size: 2.2rem;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .stat-value {
    grid-area: value;
    font-size: 1.3rem;
    font-weight: 700;
    color: #4a90e2;
    margin-bottom: 2px;
    display: block;
    text-align: left;
  }

  .stat-label {
    grid-area: label;
    font-size: 0.9rem; /* Bigger font for readability */
    line-height: 1.3;
    color: #495057;
    font-weight: 600;
    display: block;
    text-align: left;
    white-space: normal; /* Allow wrap */
  }

  .progress-bar-container {
    height: 8px;
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 5px;
    border: 1px solid #dee2e6;
  }

  .progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #4a90e2, #50e3c2);
    transition: width 0.3s ease;
  }

  /* ========================================
     BLUE PRINT MENU LINK - MOBILE
     ======================================== */
  
  #main-menu-container > a {
    display: block;
    width: 100%;
    max-width: 100%;
    margin: 0 0 20px 0;
    text-decoration: none;
  }

  #main-menu-container > a .card-menu-item {
    grid-column: 1 / -1; /* Span full width */
    min-height: 100px !important;
    padding: 18px !important;
    flex-direction: row !important;
    text-align: left !important;
    gap: 15px !important;
    background: white;
    border: 2px solid #e9ecef;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  }

  #main-menu-container > a .card-menu-icon-wrapper {
    width: 65px !important;
    height: 65px !important;
    font-size: 2rem !important;
    margin-bottom: 0 !important;
    margin-right: 0 !important;
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
  }

  #main-menu-container > a .card-menu-icon-wrapper i {
    font-size: 2rem !important;
    color: white !important;
    font-weight: 900;
  }

  #main-menu-container > a .card-menu-text {
    text-align: left !important;
    align-items: flex-start !important;
  }

  #main-menu-container > a .card-menu-title {
    font-size: 1.1rem !important;
    font-weight: 700;
    color: #2d3436 !important;
    margin-bottom: 5px;
  }

  #main-menu-container > a .card-menu-description {
    font-size: 0.85rem !important;
    display: block !important; /* Show description for blue print */
    color: #636e72 !important;
    line-height: 1.4;
  }

  /* ========================================
     CARD MENU GRID - MOBILE (LAYOUT 1 COLUMN SAFE MODE)
     ======================================== */
  
  .card-menu-grid {
    display: grid !important;
    grid-template-columns: 1fr !important; /* 1 Column */
    gap: 15px !important;
    margin: 0 !important;
    padding: 0 5px !important;
    width: 100%;
    box-sizing: border-box !important;
  }

  /* ========================================
     CARD MENU ITEMS - MOBILE (VERTICAL)
     ======================================== */
  
  .card-menu-grid .card-menu-item {
    padding: 20px 15px !important;
    border-radius: 16px !important;
    display: flex !important;
    flex-direction: column !important; /* VERTICAL LAYOUT */
    align-items: center !important;
    justify-content: center !important;
    gap: 12px !important;
    background: white !important;
    border: 2px solid #e9ecef !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08) !important;
    transition: all 0.3s ease;
    text-align: center !important;
    width: 100% !important;
    min-height: auto !important;
    position: relative;
    box-sizing: border-box !important;
    margin: 0 !important;
  }

  .card-menu-grid .card-menu-item:active {
    transform: scale(0.97) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12) !important;
  }

  /* ========================================
     ICON WRAPPER - MOBILE (LARGER & VISIBLE)
     ======================================== */
  
  .card-menu-grid .card-menu-icon-wrapper {
    width: 70px !important;
    height: 70px !important;
    font-size: 2.2rem !important;
    margin-right: 0 !important;
    margin-bottom: 0 !important;
    border-radius: 18px !important;
    flex-shrink: 0;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    color: white !important;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25) !important;
    position: relative;
    overflow: visible;
  }

  .card-menu-grid .card-menu-icon-wrapper i {
    font-size: 2.2rem !important;
    color: white !important;
    display: block;
    line-height: 1;
    font-weight: 900;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  /* Ensure gradient backgrounds are visible */
  .card-color-1 {
    background: linear-gradient(135deg, #00b09b, #96c93d) !important;
  }
  .card-color-2 {
    background: linear-gradient(135deg, #ff512f, #dd2476) !important;
  }
  .card-color-3 {
    background: linear-gradient(135deg, #e55d87, #5fc3e4) !important;
  }
  .card-color-4 {
    background: linear-gradient(135deg, #f093fb, #f5576c) !important;
  }
  .card-color-5 {
    background: linear-gradient(135deg, #4facfe, #00f2fe) !important;
  }
  .card-color-6 {
    background: linear-gradient(135deg, #43e97b, #38f9d7) !important;
  }
  .card-color-7 {
    background: linear-gradient(135deg, #fa709a, #fee140) !important;
  }
  .card-color-8 {
    background: linear-gradient(135deg, #667eea, #764ba2) !important;
  }
  .card-color-9 {
    background: linear-gradient(135deg, #89f7fe, #66a6ff) !important;
  }
  .card-color-10 {
    background: linear-gradient(135deg, #a18cd1, #fbc2eb) !important;
  }
  .card-color-11 {
    background: linear-gradient(135deg, #ff9a9e, #fecfef) !important;
  }
  .card-color-12 {
    background: linear-gradient(135deg, #f6d365, #fda085) !important;
  }
  .card-color-13 {
    background: linear-gradient(135deg, #84fab0, #8fd3f4) !important;
  }
  .card-color-14 {
    background: linear-gradient(135deg, #a1c4fd, #c2e9fb) !important;
  }
  .card-color-15 {
    background: linear-gradient(135deg, #11998e, #38ef7d) !important;
  }

  /* ========================================
     TEXT CONTENT - MOBILE (READABLE)
     ======================================== */
  
  .card-menu-grid .card-menu-text {
    flex: 1;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 5px !important;
    width: 100% !important;
  }

  .card-menu-grid .card-menu-title {
    font-size: 1.1rem !important;
    margin-bottom: 0;
    font-weight: 700;
    color: #2d3436 !important;
    line-height: 1.3;
    text-align: center !important;
    white-space: normal !important;
  }

  .card-menu-grid .card-menu-description {
    font-size: 0.85rem !important;
    line-height: 1.4;
    color: #636e72 !important;
    display: block !important;
    text-align: center !important;
  }

}

/* ========================================
   EXTRA SMALL SCREENS (6 inch phones)
   Max-width: 400px
   ======================================== */

@media (max-width: 400px) {
  /* Main Menu Container */
  #main-menu-container {
    padding: 18px 12px;
  }

  #main-menu-welcome-user {
    font-size: 1.2rem;
    color: #2d3436 !important;
    line-height: 1.3;
  }

  #main-menu-container h3 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: #636e72 !important;
  }

  /* Daily Stats Panel - Smaller screens (STILL 1 COLUMN) */
  #daily-stats-panel {
    padding: 12px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
  }

  .stats-row {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  /* Force Horizontal Layout for Stats on Small Screens too */
  .stat-card {
    display: grid !important; 
    grid-template-columns: 40px 1fr !important; 
    grid-template-rows: auto auto !important;
    grid-template-areas: 
      "icon value"
      "icon label" !important;
    align-items: center !important;
    padding: 12px !important;
    text-align: left !important;
    column-gap: 12px !important;
    width: 100% !important;
    box-sizing: border-box !important;
    background: white;
    border: 1px solid #e9ecef;
  }

  .stat-icon {
    grid-area: icon;
    font-size: 1.8rem !important; /* Slightly smaller icon */
    margin-bottom: 0 !important;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .stat-value {
    grid-area: value;
    font-size: 1.2rem !important;
    text-align: left !important;
    color: #4a90e2 !important;
  }

  .stat-label {
    grid-area: label;
    font-size: 0.8rem !important;
    white-space: normal !important;
    text-align: left !important;
    color: #495057 !important;
    font-weight: 600;
  }

  /* Card Menu Items - 1 COLUMN for small screens too */
  .card-menu-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .card-menu-grid .card-menu-item {
    padding: 15px 12px !important;
    min-height: auto !important;
    gap: 10px !important;
    background: white !important;
    border: 2px solid #e9ecef !important;
    border-radius: 16px !important;
    flex-direction: column !important; /* FORCE VERTICAL */
    align-items: center !important;
    text-align: center !important;
  }

  .card-menu-grid .card-menu-icon-wrapper {
    width: 60px !important;
    height: 60px !important;
    font-size: 1.8rem !important;
    border-radius: 14px !important;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25) !important;
    margin-right: 0 !important;
    margin-bottom: 0 !important;
  }

  .card-menu-grid .card-menu-icon-wrapper i {
    font-size: 1.8rem !important;
    color: white !important;
    font-weight: 900;
  }

  #main-menu-container > a .card-menu-icon-wrapper {
    width: 60px !important;
    height: 60px !important;
    font-size: 1.8rem !important;
  }

  #main-menu-container > a .card-menu-icon-wrapper i {
    font-size: 1.8rem !important;
    color: white !important;
  }

  .card-menu-grid .card-menu-title {
    font-size: 1rem !important;
    font-weight: 700;
    color: #2d3436 !important;
    line-height: 1.3;
    text-align: center !important;
  }

  .card-menu-grid .card-menu-description {
    font-size: 0.8rem !important;
    line-height: 1.3;
    color: #636e72 !important;
    display: block !important;
    text-align: center !important;
  }

  #main-menu-container > a .card-menu-title {
    font-size: 1.05rem !important;
    color: #2d3436 !important;
  }

  #main-menu-container > a .card-menu-description {
    font-size: 0.82rem !important;
    color: #636e72 !important;
    display: block !important;
  }
}

/* ========================================
   2. DAILY STATS PANEL - MOBILE
   ======================================== */

@media (max-width: 768px) {
  #daily-stats-panel {
    margin-bottom: 20px;
  }

  .stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .stat-card {
    padding: 12px 8px;
  }

  .stat-icon {
    font-size: 1.5rem;
    margin-bottom: 5px;
  }

  .stat-value {
    font-size: 1.1rem;
    font-weight: 700;
  }

  .stat-label {
    font-size: 0.7rem;
    line-height: 1.2;
  }

  .progress-bar-container {
    height: 6px;
    margin-top: 10px;
  }
}

/* ========================================
   3. ANALYTICS DASHBOARD - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .analytics-dashboard {
    padding: 0;
  }

  .analytics-section {
    margin-bottom: 25px;
    padding: 15px;
    background: var(--bg-tertiary);
    border-radius: 12px;
  }

  .analytics-section h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
  }

  /* Category bars */
  .category-bar {
    margin-bottom: 15px;
  }

  .category-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9rem;
  }

  .category-name {
    font-weight: 600;
  }

  .category-accuracy {
    color: var(--primary-color);
    font-weight: 700;
  }

  .category-details {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 5px;
  }

  /* Weakness & Strength grid */
  .weakness-strength-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .weakness-box,
  .strength-box {
    padding: 15px;
    border-radius: 10px;
  }

  .weakness-box h4,
  .strength-box h4 {
    font-size: 1rem;
    margin-bottom: 10px;
  }

  .weakness-item,
  .strength-item {
    padding: 8px 12px;
    margin-bottom: 8px;
    border-radius: 8px;
    font-size: 0.85rem;
  }

  /* Monthly chart */
  .chart-bars {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 150px;
    gap: 5px;
  }

  .chart-bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .chart-bar {
    width: 100%;
    min-height: 20px;
    border-radius: 6px 6px 0 0;
    position: relative;
  }

  .chart-value {
    font-size: 0.75rem;
    font-weight: 700;
  }

  .chart-label {
    font-size: 0.7rem;
    margin-top: 5px;
  }

  .chart-accuracy {
    font-size: 0.7rem;
    color: var(--primary-color);
  }

  /* Heatmap */
  .heatmap-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
    margin-bottom: 10px;
  }

  .heatmap-cell {
    aspect-ratio: 1;
    border-radius: 3px;
    font-size: 0.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .heatmap-legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    font-size: 0.7rem;
  }

  .legend-boxes {
    display: flex;
    gap: 3px;
  }

  .legend-box {
    width: 12px;
    height: 12px;
    border-radius: 2px;
  }
}

/* ========================================
   4. POMODORO TIMER - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .pomodoro-container {
    padding: 20px 15px;
  }

  .pomodoro-display {
    margin-bottom: 25px;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: 15px;
  }

  .pomodoro-status {
    font-size: 1.1rem;
    margin-bottom: 10px;
  }

  .pomodoro-timer {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 15px 0;
    font-variant-numeric: tabular-nums;
  }

  .pomodoro-sessions {
    font-size: 0.95rem;
    color: var(--text-light);
  }

  .pomodoro-controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
  }

  .btn-pomodoro {
    padding: 12px 8px;
    font-size: 0.85rem;
    border-radius: 10px;
    white-space: nowrap;
  }

  .pomodoro-stats h4 {
    font-size: 1rem;
    margin-bottom: 15px;
  }

  #pomodoro-today-stats {
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background: var(--bg-tertiary);
    border-radius: 10px;
  }
}

/* ========================================
   5. FILTER SOAL - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .smart-filter-panel {
    padding: 0;
  }

  .filter-group {
    margin-bottom: 15px;
  }

  .filter-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-dark);
  }

  .filter-select,
  .filter-input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.95rem;
    background: var(--input-bg);
  }

  .filter-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 20px;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    font-size: 0.95rem;
  }

  .filter-results {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
  }
}

/* ========================================
   6. COMPARISON DASHBOARD - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .comparison-dashboard {
    padding: 0;
  }

  .comparison-section {
    margin-bottom: 25px;
  }

  .comparison-section h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
  }

  .comparison-card {
    background: var(--bg-tertiary);
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 15px;
  }

  .comparison-metric {
    margin-bottom: 15px;
  }

  .metric-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 8px;
  }

  .metric-values {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
  }

  .user-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
  }

  .vs {
    font-size: 0.8rem;
    color: var(--text-light);
  }

  .avg-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-light);
  }

  .percentile-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 5px;
  }

  .percentile-fill {
    height: 100%;
    background: linear-gradient(
      90deg,
      var(--primary-color),
      var(--secondary-color)
    );
    transition: width 0.5s ease;
  }

  .percentile-text {
    font-size: 0.75rem;
    color: var(--text-light);
    text-align: center;
  }

  /* Category comparison */
  .category-comparison-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .category-comparison-item {
    background: var(--bg-tertiary);
    padding: 12px;
    border-radius: 10px;
  }

  .category-name {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
  }

  .comparison-bars {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 8px;
  }

  .user-bar,
  .avg-bar {
    height: 25px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 0.75rem;
    font-weight: 600;
  }

  .user-bar {
    background: var(--primary-color);
    color: white;
  }

  .avg-bar {
    background: var(--text-light);
    color: white;
    opacity: 0.7;
  }

  .difference {
    font-size: 0.8rem;
    font-weight: 600;
    text-align: right;
  }

  .difference.positive {
    color: #28a745;
  }

  .difference.negative {
    color: #dc3545;
  }

  /* Insights */
  .insights-box {
    background: var(--bg-tertiary);
    padding: 15px;
    border-radius: 10px;
  }

  .insight-item {
    padding: 10px;
    margin-bottom: 10px;
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary-color);
    border-radius: 5px;
    font-size: 0.85rem;
    line-height: 1.4;
  }
}

/* ========================================
   7. FLASHCARD MODE - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .flashcard-container {
    padding: 15px;
  }

  .flashcard-card {
    min-height: 250px;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 20px;
  }

  .flashcard-front,
  .flashcard-back {
    font-size: 1rem;
    line-height: 1.5;
  }

  .flashcard-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .flashcard-difficulty {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 15px;
  }

  .difficulty-btn {
    padding: 10px;
    font-size: 0.85rem;
    border-radius: 8px;
  }
}

/* ========================================
   8. QUIZ BUILDER - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .quiz-builder-container {
    padding: 15px;
  }

  .question-selector {
    max-height: 300px;
    overflow-y: auto;
  }

  .question-item {
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 10px;
    font-size: 0.85rem;
  }

  .selected-questions-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .selected-question-chip {
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
  }
}

/* ========================================
   9. ACHIEVEMENT SHOWCASE - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .achievements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .achievement-card {
    padding: 15px;
    border-radius: 12px;
    text-align: center;
  }

  .achievement-icon {
    font-size: 2rem;
    margin-bottom: 8px;
  }

  .achievement-name {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 5px;
  }

  .achievement-description {
    font-size: 0.7rem;
    line-height: 1.3;
  }

  .achievement-progress {
    margin-top: 10px;
  }

  .achievement-progress-bar {
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
  }

  .achievement-progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
  }

  .achievement-progress-text {
    font-size: 0.7rem;
    margin-top: 5px;
    color: var(--text-light);
  }
}

/* ========================================
   10. BACK BUTTON FOOTER - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .back-button-footer {
    width: 100%;
    padding: 14px;
    margin-top: 20px;
    border-radius: 12px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }

  .back-button-footer i {
    font-size: 1.1rem;
  }
}

/* ========================================
   11. DARK MODE TOGGLE - MOBILE
   ======================================== */

@media (max-width: 768px) {
  #theme-toggle-btn {
    position: fixed;
    top: 15px;
    right: 15px;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    z-index: 1000;
    transition: all 0.3s ease;
  }

  #theme-toggle-btn:hover {
    transform: scale(1.1);
  }
}

/* ========================================
   12. ACHIEVEMENT POPUP - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .achievement-popup {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 350px;
    padding: 15px;
    border-radius: 12px;
    z-index: 9999;
  }

  .achievement-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
  }

  .achievement-badge {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
  }

  .achievement-title {
    font-size: 1rem;
    font-weight: 700;
  }

  .achievement-subtitle {
    font-size: 0.75rem;
  }

  .achievement-description {
    font-size: 0.85rem;
    line-height: 1.4;
  }
}

/* ========================================
   13. WELCOME/LANDING PAGE - MOBILE
   ======================================== */

@media (max-width: 768px) {
  /* License Form Container */
  #license-form-container {
    max-width: 100%;
    padding: 30px 20px;
    margin: 10px auto;
  }

  /* Logo Area */
  .logo-area {
    margin-bottom: 20px;
  }

  .logo-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
  }

  .logo-circle i {
    font-size: 2.5rem;
    color: white;
  }

  /* Welcome Header */
  .welcome-header {
    margin-bottom: 25px;
  }

  .welcome-header h1 {
    font-size: 1.75rem;
    margin-bottom: 10px;
    line-height: 1.3;
  }

  .welcome-header h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-light);
  }

  .app-description {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-light);
    margin-bottom: 20px;
  }

  /* Features Grid */
  .features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 25px;
  }

  .feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    text-align: left;
  }

  .feature-icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    flex-shrink: 0;
  }

  .feature-icon.c-1 {
    background: linear-gradient(135deg, #00b09b, #96c93d);
  }

  .feature-icon.c-2 {
    background: linear-gradient(135deg, #ff512f, #dd2476);
  }

  .feature-icon.c-3 {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
  }

  .feature-icon.c-4 {
    background: linear-gradient(135deg, #fa709a, #fee140);
  }

  .feature-text {
    flex: 1;
  }

  .feature-text strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 3px;
  }

  .feature-text span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.3;
  }

  /* Social Proof Stats */
  .social-proof-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 25px;
  }

  .proof-card {
    background: var(--bg-tertiary);
    padding: 15px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }

  .proof-icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    flex-shrink: 0;
  }

  .proof-icon.icon-yellow {
    background: linear-gradient(135deg, #f6d365, #fda085);
  }

  .proof-icon.icon-cyan {
    background: linear-gradient(135deg, #89f7fe, #66a6ff);
  }

  .proof-icon.icon-purple {
    background: linear-gradient(135deg, #a18cd1, #fbc2eb);
  }

  .proof-icon.icon-green {
    background: linear-gradient(135deg, #11998e, #38ef7d);
  }

  .proof-text {
    flex: 1;
    text-align: left;
  }

  .proof-text h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 3px 0;
  }

  .proof-text p {
    font-size: 0.75rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.2;
  }

  /* Login Section */
  .login-section {
    margin-bottom: 25px;
  }

  .login-prompt {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
  }

  .input-container {
    gap: 12px;
    margin-bottom: 15px;
  }

  .input-group {
    width: 100%;
  }

  .input-group input,
  .input-group select {
    width: 100%;
    padding: 12px 12px 12px 42px;
    font-size: 0.95rem;
    border-radius: 10px;
  }

  .input-icon {
    left: 12px;
    font-size: 1.1rem;
  }

  #submit-license-button {
    width: 100%;
    padding: 14px;
    font-size: 1rem;
    margin-top: 10px;
  }

  .secondary-actions {
    margin-top: 15px;
  }

  .btn-text-only {
    background: transparent;
    color: var(--text-light);
    box-shadow: none;
    font-size: 0.85rem;
    padding: 10px;
  }

  .license-info {
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
  }

  .license-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
  }

  /* Why Us Section */
  .why-us-container {
    margin-bottom: 25px;
  }

  .section-title-center {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-align: center;
  }

  .why-us-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .why-card {
    background: var(--bg-tertiary);
    padding: 15px;
    border-radius: 12px;
    display: flex;
    gap: 15px;
    align-items: flex-start;
  }

  .why-icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    flex-shrink: 0;
  }

  .why-icon.w-1 {
    background: linear-gradient(135deg, #667eea, #764ba2);
  }

  .why-icon.w-2 {
    background: linear-gradient(135deg, #f093fb, #f5576c);
  }

  .why-icon.w-3 {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
  }

  .why-icon.w-4 {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
  }

  .why-content {
    flex: 1;
    text-align: left;
  }

  .why-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 8px 0;
  }

  .why-content p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.4;
  }

  /* Testimonials Section */
  .testimonials-container {
    margin-bottom: 25px;
  }

  .testimonial-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .testi-card {
    background: var(--bg-tertiary);
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }

  .testi-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
  }

  .testi-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
  }

  .testi-info {
    flex: 1;
    text-align: left;
  }

  .testi-info h5 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 5px 0;
  }

  .stars {
    display: flex;
    gap: 2px;
  }

  .stars i {
    font-size: 0.75rem;
    color: #ffd700;
  }

  .testi-text {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
    text-align: left;
  }

  /* Developer Credit */
  .developer-credit-slim {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
  }

  .developer-credit-slim small {
    font-size: 0.8rem;
    color: var(--text-light);
  }

  .developer-credit-slim strong {
    color: var(--primary-color);
  }
}

/* ========================================
   14. LOADING STATES - MOBILE
   ======================================== */

@media (max-width: 768px) {
  .loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }

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

  .loading-text {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--text-light);
  }
}

/* ========================================
   14. TOUCH IMPROVEMENTS
   ======================================== */

@media (max-width: 768px) {
  /* Increase touch targets */
  button,
  .card-menu-item,
  .option-button,
  .nav-question-box {
    min-height: 44px;
    min-width: 44px;
  }

  /* Remove hover effects on touch devices */
  @media (hover: none) {
    .card-menu-item:hover,
    .option-button:hover,
    button:hover {
      transform: none;
    }

    /* Add active states instead */
    .card-menu-item:active {
      transform: scale(0.98);
      opacity: 0.9;
    }

    .option-button:active {
      transform: scale(0.98);
    }

    button:active {
      transform: scale(0.98);
    }
  }
}

/* ========================================
   15. SCROLL IMPROVEMENTS
   ======================================== */

@media (max-width: 768px) {
  /* Smooth scrolling */
  html {
    scroll-behavior: smooth;
  }

  /* Custom scrollbar for mobile */
  ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }

  ::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 10px;
  }

  ::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
  }
}

/* ========================================
   16. SAFE AREA INSETS (for notched devices)
   ======================================== */

@media (max-width: 768px) {
  body {
    padding-top: max(10px, env(safe-area-inset-top));
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    padding-left: max(10px, env(safe-area-inset-left));
    padding-right: max(10px, env(safe-area-inset-right));
  }

  #theme-toggle-btn {
    top: max(15px, calc(env(safe-area-inset-top) + 5px));
    right: max(15px, calc(env(safe-area-inset-right) + 5px));
  }
}