* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
            padding: 20px;
            color: #ffffff;
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
        }
        
        .header {
            text-align: center;
            margin-bottom: 40px;
            padding: 30px;
            background: #D95D2E; /* Solid color for better contrast control */
            border-radius: 15px;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }
        
        .header h1 {
            font-size: 2.5em;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 10px;
            color: #ffffff;
        }
        
        .header p {
            font-size: 1.1em;
            opacity: 1;
            color: #ffffff;
        }
        
        .sessions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
            gap: 25px;
            margin-bottom: 30px;
        }
        
        .session-card {
            background: #2a2a2a;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            border: 2px solid #3a3a3a;
            transition: transform 0.2s, border-color 0.2s;
        }
        
        .session-card.drag-over {
            border-color: #D95D2E;
            background: #353535;
        }
        
        .session-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 3px solid #D95D2E;
        }
        
        .session-label {
            background: #D95D2E; /* Updated to match new accent */
            color: #ffffff;
            padding: 8px 20px;
            border-radius: 25px;
            font-weight: bold;
            font-size: 1.2em;
            letter-spacing: 1px;
        }
        
        .add-exercise-btn {
            background: #404040;
            color: white;
            border: none;
            padding: 8px 15px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 0.9em;
            transition: background 0.2s;
        }
        
        .add-exercise-btn:hover {
            background: #D95D2E;
        }
        
        .exercise-list {
            list-style: none;
            min-height: 50px;
        }
        
        .exercise-item {
            background: #353535;
            margin-bottom: 12px;
            padding: 15px;
            border-radius: 8px;
            border-left: 4px solid #D95D2E;
            transition: background 0.2s;
            cursor: move;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .exercise-item:hover {
            background: #404040;
        }
        
        .exercise-item.dragging {
            opacity: 0.5;
        }
        
        .exercise-content {
            flex: 1;
        }
        
        .exercise-name {
            font-weight: bold;
            font-size: 1.05em;
            color: #ffffff;
            margin-bottom: 5px;
            text-transform: capitalize;
        }
        
        .exercise-details {
            color: #CCCCCC;
            font-size: 0.95em;
        }
        
        .exercise-category {
            color: #FFD8C2; /* High contrast light orange */
            font-size: 0.85em;
            font-style: italic;
            margin-top: 3px;
        }
        
        .sets {
            color: #FFD8C2; /* High contrast light orange */
            font-weight: bold;
        }
        
        .exercise-controls {
            display: flex;
            gap: 8px;
        }
        
        .edit-btn, .delete-btn {
            background: #404040;
            color: white;
            border: none;
            padding: 5px 10px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 0.85em;
        }
        
        .edit-btn:hover {
            background: #5a5a5a;
        }
        
        .delete-btn:hover {
            background: #cc0000;
        }
        
        .categories-section {
            margin-top: 50px;
            padding: 30px;
            background: #2a2a2a;
            border-radius: 12px;
            border: 2px solid #3a3a3a;
        }
        
        .categories-header {
            text-align: center;
            margin-bottom: 30px;
        }
        
        .categories-header h2 {
            font-size: 2em;
            color: #D95D2E;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr); /* Fixed 4 columns */
            gap: 20px;
        }

        @media (max-width: 1200px) {
            .categories-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 900px) {
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .category-card {
            background: #353535;
            padding: 20px;
            border-radius: 8px;
            border: 2px solid #404040;
            min-height: 100px;
        }
        
        .category-card.drag-over {
            border-color: #D95D2E;
            background: #404040;
        }
        
        .category-header {
            font-weight: bold;
            font-size: 1.1em;
            color: #D95D2E;
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .category-exercises {
            list-style: none;
        }
        
        .category-exercise-item {
            background: #2a2a2a;
            padding: 10px;
            margin-bottom: 8px;
            border-radius: 5px;
            border-left: 3px solid #D95D2E;
            cursor: pointer;
            font-size: 0.9em;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .category-exercise-item:hover {
            background: #333333;
        }
        
        .category-exercise-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .category-volume {
            font-size: 0.8em;
            color: #ffffff; /* White for max contrast against dark card */
            margin-right: 8px;
            font-weight: bold;
            opacity: 0.9;
        }

        .exercise-volume {
            font-size: 0.9em; /* Slightly larger */
            color: #ffffff; /* White for max contrast */
            background: #404040; /* darker background for the pill */
            border: 1px solid #555;
            padding: 2px 8px;
            border-radius: 4px;
            min-width: 28px;
            text-align: center;
            font-weight: bold;
        }

        .session-volume {
            background: #ffffff; /* White pill */
            color: #D95D2E; /* Orange text matching header */
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 0.85em;
            margin-left: 10px;
            font-weight: bold;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .edit-category-btn {
            background: #404040;
            color: white;
            border: none;
            padding: 3px 8px;
            border-radius: 3px;
            cursor: pointer;
            font-size: 0.8em;
        }
        
        .edit-category-btn:hover {
            background: #5a5a5a;
        }
        
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.7);
        }
        
        .modal-content {
            background-color: #2a2a2a;
            margin: 10% auto;
            padding: 30px;
            border: 2px solid #D95D2E;
            border-radius: 12px;
            width: 90%;
            max-width: 500px;
            color: white;
        }
        
        .modal-header {
            font-size: 1.5em;
            margin-bottom: 20px;
            color: #D95D2E;
        }
        
        .form-group {
            margin-bottom: 15px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 5px;
            color: #CCCCCC;
        }
        
        .form-group input, .form-group select {
            width: 100%;
            padding: 10px;
            background: #353535;
            border: 1px solid #404040;
            border-radius: 5px;
            color: white;
            font-size: 1em;
        }
        
        .form-group select option {
            background: #353535;
            color: white;
        }
        
        .form-buttons {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }
        
        .btn {
            flex: 1;
            padding: 12px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1em;
            font-weight: bold;
        }
        
        .btn-primary {
            background: #D95D2E;
            color: white;
        }
        
        .btn-secondary {
            background: #404040;
            color: white;
        }
        
        .btn:hover {
            opacity: 0.9;
        }
        
        .controls {
            margin-top: 20px;
        }

        .btn-add {
            background: #404040;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1em;
            font-weight: bold;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s, background 0.2s;
        }

        .btn-add:hover {
            transform: translateY(-2px);
            background: #D95D2E;
        }

        .btn-delete-session {
            background: #cc0000;
            color: white;
            border: none;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-left: 10px;
            opacity: 0.7;
            transition: opacity 0.2s;
        }

        .btn-delete-session:hover {
            opacity: 1;
        }

        .btn-delete-category {
            background: none;
            border: none;
            color: #666;
            cursor: pointer;
            font-size: 1.2em;
            margin-left: auto;
            padding: 0 5px;
        }

        .btn-delete-category:hover {
            color: #cc0000;
        }
        
        .category-header-content {
            display: flex;
            align-items: center;
            width: 100%;
        }

        @media (max-width: 768px) {
            .sessions-grid {
                grid-template-columns: 1fr;
            }
            
            .header h1 {
                font-size: 1.8em;
            }
            
            .categories-grid {
                grid-template-columns: 1fr;
            }
        }