* {
    box-sizing: border-box;
  }

  :root {
    --primary-color: #00bfa6;
    --primary-dark: #00a896;
    --secondary-color: #6c757d;
    --secondary-dark: #5a6268;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --dark-text: #495057;
    --light-text: #6c757d;
    --border-color: #e9ecef;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background: #f0f4f8;
    color: var(--dark-text);
    min-height: 100vh;
  }
  header {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 1.2rem;
    font-size: 1.8rem;
    font-weight: bold;
    box-shadow: var(--shadow);
  }
  main {
    padding: 1rem;
    padding-bottom: 4rem;
    max-width: 1400px;
    margin: 0 auto;
  }
  h2 {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 1rem 0;
  }
  h3 {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 1rem 0;
  }
  h4 {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 0.75rem 0;
  }
  .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  @media (max-width: 768px) {
    .content-grid {
      grid-template-columns: 1fr;
      gap: 1rem;
    }
    
    .section-header {
      flex-direction: column;
      align-items: stretch;
    }
  }
  .players-section, .leaderboard-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
  }
  .players-section:hover, .leaderboard-section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }
  .duos-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-top: 1rem;
  }
  .card {
    background: var(--light-bg);
    border-radius: 12px;
    padding: 1.2rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }
  .card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
  }
  .card-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
  }
  .action-btn {
    background: none;
    border: none;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: background 0.2s;
  }
  .edit-btn {
    color: var(--info-color);
  }
  .delete-btn {
    color: var(--danger-color);
  }
  .action-btn:hover {
    background: rgba(0, 0, 0, 0.1);
  }
  .hidden {
    display: none;
  }
  input, button {
    padding: 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    transition: all 0.2s;
  }
  input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 191, 166, 0.2);
  }
  .primary-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: all 0.2s;
  }
  .primary-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
  }
  .secondary-btn {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: all 0.2s;
  }
  .secondary-btn:hover {
    background: var(--secondary-dark);
  }
  .success-btn {
    background: var(--success-color);
    color: var(--white);
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: all 0.2s;
  }
  .success-btn:hover {
    background: #218838;
  }
  .warning-btn {
    background: var(--warning-color);
    color: #212529;
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: all 0.2s;
  }
  .warning-btn:hover {
    background: #e0a800;
  }
  .danger-btn {
    background: var(--danger-color);
    color: var(--white);
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: all 0.2s;
  }
  .danger-btn:hover {
    background: #c82333;
  }
  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
  }
  .player-select-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
  }
  .player-select-item {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    position: relative;
    user-select: none;
  }
  .player-select-item:hover {
    border-color: #00bfa6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  .player-select-item.selected {
    border-color: #00bfa6;
    background: #e6fffd;
    box-shadow: 0 4px 12px rgba(0, 191, 166, 0.2);
  }
  .player-select-item input[type="checkbox"] {
    display: none;
  }
  .player-select-item label {
    cursor: pointer;
    font-weight: bold;
    color: #495057;
    margin: 0;
    display: block;
  }
  .selection-info {
    text-align: center;
    margin: 1rem 0;
    padding: 0.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    font-weight: bold;
    color: #495057;
  }
  .selection-info span {
    color: #00bfa6;
    font-size: 1.1rem;
  }
  .setup-container {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  }
  .add-player-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
  }
  
  .add-new-player, .add-existing-player {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
  }
  
  .add-new-player input {
    flex: 1;
    min-width: 200px;
  }
  
  .add-existing-player select {
    flex: 1;
    min-width: 200px;
  }
  
  .player-dropdown {
    padding: 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    font-size: 1rem;
    background: var(--white);
    transition: all 0.2s;
  }
  
  .player-dropdown:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 191, 166, 0.2);
  }
  .confirm-btn {
    width: 100%;
    margin-top: 1rem;
    padding: 1rem;
    font-size: 1.1rem;
  }
  footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-around;
    background: var(--white);
    padding: 0.75rem 0;
    border-top: 1px solid var(--border-color);
    z-index: 100;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
  }
  .nav-btn {
    background: none;
    border: none;
    font-size: 1rem;
    color: var(--light-text);
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s;
  }
  .nav-btn:hover, .nav-btn.active {
    color: var(--primary-color);
    background: rgba(0, 191, 166, 0.1);
  }
  /* Modal Styles */
  .modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
  }
  
  .modal:not(.hidden) {
    display: flex;
  }
  
  .modal-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    max-width: 500px;
    width: 90%;
  }
  
  .modal-content h3 {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 1.5rem 0;
    text-align: center;
  }
  
  .edit-form {
    margin-bottom: 1rem;
  }
  
  .form-group {
    margin-bottom: 1rem;
  }
  
  .form-group label {
    font-size: 1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin-bottom: 0.5rem;
    display: block;
  }
  
  .form-group input {
    width: 100%;
    margin-top: 0;
  }
  
  .modal-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
  }
  .modal-buttons button {
    flex: 1;
  }
  /* Table Styles */
  .table-container {
    overflow-x: auto;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }
  .duos-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: var(--white);
  }
  .duos-table th,
  .duos-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
  }
  .duos-table th {
    background: var(--primary-color);
    color: var(--white);
    font-size: 1rem;
    font-weight: bold;
    padding: 1rem;
    text-align: left;
  }
  .duos-table tr:hover {
    background: var(--light-bg);
  }
  .duos-table .wins-cell {
    font-weight: bold;
    color: var(--primary-color);
  }
  /* Responsive adjustments */
  @media (max-width: 480px) {
    .grid {
      grid-template-columns: 1fr;
    }
    
    .session-players-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .add-player-section {
      flex-direction: column;
    }
    
    .add-player-section input {
      min-width: auto;
    }
    
    .team-selection {
      grid-template-columns: 1fr;
      gap: 1rem;
    }
    
    .vs-divider {
      order: -1;
    }
    
    .game-result-form {
      grid-template-columns: 1fr;
      gap: 1rem;
    }
    
    .vs-display {
      order: -1;
    }
  }
  /* Session Styles */
  .session-header {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .session-title {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .session-title h2 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.8rem;
  }
  
  .session-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 1rem;
  }
  
  .session-stat {
    color: var(--light-text);
    font-weight: 500;
  }
  
  .session-stat strong {
    color: var(--dark-text);
    font-weight: bold;
  }
  
  .session-controls {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
  }
  
  .session-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  @media (max-width: 1024px) {
    .session-content {
      grid-template-columns: 1fr;
    }
  }
  
  .session-players-section, .game-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
  }
  
  .players-status {
    margin-top: 1rem;
  }
  
  .playing-section, .waiting-section {
    background: var(--white);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
  }
  
  .playing-section h4, .waiting-section h4 {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 1rem 0;
    text-align: center;
  }
  
  .playing-players-grid, .waiting-players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.75rem;
    max-height: 200px;
    overflow-y: auto;
    padding: 0.75rem;
    border-radius: 8px;
  }
  
  .playing-players-grid {
    background: #e6fffd;
    border: 2px solid var(--primary-color);
  }
  
  .waiting-players-grid {
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    max-height: 150px;
  }
  
  .player-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    position: relative;
  }
  
  .player-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }
  
  .player-card.selected {
    border-color: var(--primary-color);
    background: #e6fffd;
    box-shadow: 0 4px 12px rgba(0, 191, 166, 0.2);
  }
  
  .player-card.playing {
    border-color: var(--primary-color);
    background: #e6fffd;
  }
  
  .player-card.waiting {
    border-color: var(--secondary-color);
    background: var(--light-bg);
  }
  
  .player-name {
    font-weight: bold;
    margin-bottom: 0.25rem;
  }
  
  .player-stats {
    font-size: 0.8rem;
    color: var(--light-text);
  }
  
  .game-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
  }
  
  .team-selection {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 1.5rem;
  }
  
  .team-container {
    background: var(--light-bg);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
  }
  
  .team-container h4 {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 0.75rem 0;
    text-align: center;
  }
  
  .team-players {
    min-height: 60px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .team-player {
    background: var(--white);
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
  }
  
  .vs-divider {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
  }
  
  .game-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .session-stats-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
  }
  
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
  }
  
  .stat-card {
    background: var(--light-bg);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
  }
  
  .stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }
  
  .stat-card h4 {
    font-size: 1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 0.5rem 0;
    text-align: center;
  }
  
  .stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
  }
  
  /* Game Result Modal */
  .game-result-form {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 1rem;
  }
  .team-result {
    text-align: center;
  }
  .team-result h4 {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 0.75rem 0;
    text-align: center;
  }
  .score-input input {
    width: 100%;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
  }
  .vs-display {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
  }
  /* Rotation Modal Styles */
  .rotation-info {
    margin-bottom: 1rem;
    text-align: center;
  }
  .rotation-selection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 1rem;
  }
  .rotation-section h4 {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 0.75rem 0;
    text-align: center;
  }
  .rotation-players {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
  }
  .rotation-player {
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.8rem;
  }
  .rotation-player:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
  }
  .rotation-player.selected {
    border-color: var(--primary-color);
    background: #e6fffd;
  }
  /* Responsive adjustments for rotation */
  @media (max-width: 768px) {
    .session-header {
      flex-direction: column;
      align-items: stretch;
      gap: 1rem;
    }
    
    .session-controls {
      justify-content: center;
    }
    
    .session-meta {
      justify-content: center;
    }
    
    .add-new-player, .add-existing-player {
      flex-direction: column;
      align-items: stretch;
    }
    
    .add-new-player input,
    .add-existing-player select {
      min-width: auto;
    }
    
    .playing-players-grid, .waiting-players-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .rotation-players {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  /* Main Navigation Tabs */
  .main-nav {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .nav-tab {
    background: none;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--light-text);
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
    position: relative;
  }

  .nav-tab:hover {
    color: var(--primary-color);
    background: rgba(0, 191, 166, 0.05);
  }

  .nav-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
  }

  .nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
  }

  /* Improved Dashboard Styles */
  .content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
  }

  @media (max-width: 768px) {
    .content-grid {
      grid-template-columns: 1fr;
      gap: 1rem;
    }
    
    .section-header {
      flex-direction: column;
      align-items: stretch;
    }
  }

  .players-section, .leaderboard-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
  }

  .players-section:hover, .leaderboard-section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }

  .duos-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-top: 1rem;
  }

  /* Improved Card Styles */
  .card {
    background: var(--light-bg);
    border-radius: 12px;
    padding: 1.2rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }

  .card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
  }

  .card-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
  }

  .action-btn {
    background: none;
    border: none;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: background 0.2s;
  }

  .edit-btn {
    color: var(--info-color);
  }

  .delete-btn {
    color: var(--danger-color);
  }

  .action-btn:hover {
    background: rgba(0, 0, 0, 0.1);
  }

  /* Improved Table Styles */
  .table-container {
    overflow-x: auto;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }

  .duos-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: var(--white);
  }

  .duos-table th,
  .duos-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
  }

  .duos-table th {
    background: var(--primary-color);
    color: var(--white);
    font-size: 1rem;
    font-weight: bold;
    padding: 1rem;
    text-align: left;
  }

  .duos-table tr:hover {
    background: var(--light-bg);
  }

  .duos-table .wins-cell {
    font-weight: bold;
    color: var(--primary-color);
  }

  /* Scoring System Styles */
  .scoring-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-top: 1rem;
  }

  .scoring-buttons {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 1rem 0;
  }

  .score-btn {
    background: var(--light-bg);
    border: 2px solid var(--border-color);
    color: var(--dark-text);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 60px;
  }

  .score-btn:hover {
    border-color: var(--primary-color);
    background: rgba(0, 191, 166, 0.1);
  }

  .score-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
  }

  .score-display {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 1rem 0;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: 12px;
  }

  .team-score {
    text-align: center;
  }

  .team-score h4 {
    margin: 0 0 0.5rem 0;
    color: var(--dark-text);
  }

  .score-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
  }

  /* Session Statistics - Only Current Session */
  .session-stats-section {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
  }

  .stat-card {
    background: var(--light-bg);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
  }

  .stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }

  .stat-card h4 {
    font-size: 1rem;
    font-weight: bold;
    color: var(--dark-text);
    margin: 0 0 0.5rem 0;
    text-align: center;
  }

  .stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
  }

  /* Back Button Styles */
  .back-btn {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    font-weight: bold;
    cursor: pointer;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .back-btn:hover {
    background: var(--secondary-dark);
    transform: translateY(-1px);
  }

  /* Responsive adjustments */
  @media (max-width: 768px) {
    .nav-tab {
      padding: 0.75rem 1rem;
      font-size: 0.9rem;
    }
    
    .content-grid {
      grid-template-columns: 1fr;
    }
    
    .scoring-buttons {
      gap: 0.25rem;
    }
    
    .score-btn {
      padding: 0.5rem 0.75rem;
      min-width: 50px;
      font-size: 0.9rem;
    }
    
    .score-value {
      font-size: 1.5rem;
    }
  }