:root { --primary-color: #007bff; --primary-hover-color: #0056b3; --secondary-color: #6c757d; --secondary-hover-color: #5a6268; --danger-color: #dc3545; --danger-hover-color: #c82333; --light-gray: #f8f9fa; --medium-gray: #e9ecef; --dark-gray: #495057; --border-color: #ced4da; --shadow: 0 4px 12px rgba(0, 0, 0, 0.1); --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05); }/* --- Initial Upload State --- */ .initial-upload-state { text-align: center; } .upload-area { border: 2px dashed #007bff; border-radius: 8px; padding: 20px 20px; text-align: center; cursor: pointer; transition: all 0.3s ease; background-color: var(--light-gray); } .upload-area:hover, .upload-area.drag-over { border-color: var(--primary-color); background-color: #eaf5ff; } .upload-area .icon { font-size: 4rem; color: var(--dark-gray); margin-bottom: 15px; } .upload-area p { font-size: 1.2rem; color: var(--dark-gray); } .limits-info { text-align: center; font-size: 0.9rem; color: var(--secondary-color); margin-top: 15px; } #fileInput { display: none; } /* --- Files Added State --- */ .files-added-state { display: none; /* Hidden by default */ } .action-buttons-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; flex-wrap: wrap; gap: 10px; } .btn { padding: 10px 20px; font-size: 1rem; font-weight: 600; border: none; border-radius: 6px; cursor: pointer; transition: all 0.3s ease; text-decoration: none; display: inline-block; } .btn-secondary { color: #fff; background-color: var(--secondary-color); } .btn-secondary:hover { background-color: var(--secondary-hover-color); } .btn-danger { color: #fff; background-color: var(--danger-color); } .btn-danger:hover { background-color: var(--danger-hover-color); } /* --- Statistics --- */ .stats { display: flex; justify-content: space-around; padding: 15px; background-color: var(--light-gray); border-radius: 8px; font-size: 1rem; margin-bottom: 25px; } .stat-item { text-align: center; } .stat-item strong { display: block; font-size: 1.5rem; color: var(--primary-color); } /* --- File Grid --- */ .file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 15px; padding: 10px; margin-bottom: 25px; min-height: 100px; } .file-item { display: flex; flex-direction: column; justify-content: space-between; align-items: center; padding: 15px; background-color: #fff; border: 1px solid var(--medium-gray); border-radius: 8px; cursor: grab; transition: transform 0.2s ease, box-shadow 0.2s ease; position: relative; height: 180px; } .file-item:hover { box-shadow: var(--shadow-sm); transform: translateY(-3px); } .file-item.dragging { opacity: 0.5; cursor: grabbing; } .file-item.drag-over { border: 2px dashed var(--primary-color); background-color: #eaf5ff; } .file-item.processing { border: 2px solid var(--primary-color); background-color: #eaf5ff; } .drag-handle { position: absolute; top: 5px; left: 50%; transform: translateX(-50%); color: var(--dark-gray); font-size: 1.2rem; user-select: none; } .file-icon { font-size: 3rem; color: #e74c3c; margin-top: 15px; } .file-info { width: 100%; text-align: center; } .file-name { font-weight: 600; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 5px; } .file-size { font-size: 0.8rem; color: var(--dark-gray); } .delete-btn { background-color: transparent; border: none; color: var(--danger-color); font-size: 12px; cursor: pointer; padding: 0px; margin-top: 4px; transition: color 0.2s ease; } .delete-btn:hover { color: var(--danger-hover-color); } /* --- Action Buttons --- */ .action-area { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 15px; min-height: 50px; } #mergeButton, #downloadButton { padding: 12px 30px; font-size: 1.1rem; font-weight: 600; color: #fff; background-color: var(--primary-color); border: none; border-radius: 6px; cursor: pointer; transition: background-color 0.3s ease; text-decoration: none; } #mergeButton:hover:not(:disabled), #downloadButton:hover { background-color: var(--primary-hover-color); } #mergeButton:disabled { background-color: var(--medium-gray); cursor: not-allowed; } #downloadButton { background-color: #28a745; } #downloadButton:hover { background-color: #218838; } /* --- Loading Spinner & Status --- */ .spinner { border: 4px solid rgba(0, 0, 0, 0.1); width: 36px; height: 36px; border-radius: 50%; border-left-color: var(--primary-color); animation: spin 1s ease infinite; display: none; } @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } } #processingStatus { color: var(--dark-gray); font-size: 1rem; font-weight: 500; text-align: center; }#mergeButton:hover:not(:disabled), #downloadButton:hover:not(.download-disabled) { background-color: var(--primary-hover-color); } #mergeButton:disabled { background-color: var(--medium-gray); cursor: not-allowed; } #downloadButton { background-color: #28a745; } #downloadButton.download-disabled { background-color: var(--medium-gray) !important; cursor: not-allowed; pointer-events: none; /* Prevents clicking */ } /* --- Loading Spinner & Status --- */ .spinner { border: 4px solid rgba(0, 0, 0, 0.1); width: 36px; height: 36px; border-radius: 50%; border-left-color: var(--primary-color); animation: spin 1s ease infinite; display: none; } @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } } #processingStatus { color: var(--dark-gray); font-size: 1rem; font-weight: 500; text-align: center; }