/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 20px 20px 0 0;
}

.modal-header h2 {
    margin: 0;
    font-size: 24px;
}

.modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.modal-close:hover {
    opacity: 1;
}

.modal-body {
    padding: 30px;
}

/* Form Styles from formulaire-achat.html */
.provenance-group {
    margin-bottom: 30px;
}

.provenance-input {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 20px;
    font-weight: 400;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.provenance-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.products-container {
    margin-bottom: 20px;
}

.product-row {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr 1fr auto;
    gap: 10px;
    margin-bottom: 15px;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.product-row:hover {
    background: #e9ecef;
}

.product-row input {
    padding: 10px 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    width: 100%;
}

.product-row input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
}

.btn-remove {
    background: #e53e3e;
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    width: 100%;
    transition: background 0.2s;
}

.btn-remove:hover {
    background: #c53030;
}

.btn-add {
    width: 100%;
    padding: 15px;
    background: #f8f9fa;
    border: 2px dashed #cbd5e0;
    border-radius: 10px;
    color: #718096;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 30px;
}

.btn-add:hover {
    background: #edf2f7;
    border-color: #a0aec0;
    color: #4a5568;
}

.btn-group {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.btn-submit {
    padding: 15px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* .btn-submit:hover removed */

.btn-cancel {
    padding: 15px 30px;
    background: #e2e8f0;
    color: #4a5568;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

/* .btn-cancel:hover removed */

.info-box {
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 25px;
    color: #0d47a1;
    font-size: 14px;
}

@media (max-width: 768px) {
    .product-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .modal-content {
        width: 95%;
        margin: 10px;
    }
}