/* Custom Alert/Confirm Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-box {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.modal-icon.success {
    background: #d4edda;
    color: #28a745;
}

.modal-icon.warning {
    background: #fff3cd;
    color: #ffc107;
}

.modal-icon.error {
    background: #f8d7da;
    color: #dc3545;
}

.modal-icon.info {
    background: #d1ecf1;
    color: #17a2b8;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.modal-message {
    text-align: center;
    color: #6c757d;
    margin-bottom: 1.5rem;
}

.modal-buttons {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.modal-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.modal-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.modal-btn-secondary {
    background: #6c757d;
    color: white;
}

.modal-btn-secondary:hover {
    background: #5a6268;
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.spinner-overlay.active {
    opacity: 1;
    visibility: visible;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}