body {
    background-color: #f8fafc;
}

.tool-wrapper {
    max-width: 1280px;
    margin: 0 auto;
}

.upload-zone {
    border: 2px dashed #d1d5db;
    background-color: #ffffff;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    cursor: pointer;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.01);
}

.upload-zone:hover {
    border-color: #6c22c4;
    background-color: #f7f3ff;
}

.upload-zone i {
    color: #6c22c4;
    transition: all 0.3s ease;
}

.upload-zone:hover i {
    transform: translateY(-5px);
}

.sortable-item {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-bottom: 0.5rem;
    cursor: move;
    transition: all 0.2s ease;
}

.sortable-item:hover {
    border-color: #6c22c4;
    box-shadow: 0 4px 6px rgba(108, 34, 196, 0.05);
}

.sortable-item.dragging {
    opacity: 0.8;
    transform: scale(1.02);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.sortable-item .handle {
    color: #94a3b8;
    cursor: move;
}

.sortable-item .file-size {
    color: #64748b;
    font-size: 0.825rem;
}

.sortable-item .remove-btn {
    color: #94a3b8;
    cursor: pointer;
    transition: color 0.15s;
}

.sortable-item .remove-btn:hover {
    color: #ef4444;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(108, 34, 196, 0.15); }
    70% { transform: scale(1.01); box-shadow: 0 0 0 10px rgba(108, 34, 196, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(108, 34, 196, 0); }
}

.pulse-btn {
    animation: pulse 2s infinite;
}

.animate-pulse {
    animation: opacity-pulse 1.5s infinite;
}

@keyframes opacity-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.success-checkmark {
    animation: scale-in 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scale-in {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}