.loading-ring-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 60px;
}
.loading-ring {
    display: inline-block;
    width: 48px;
    height: 48px;
    border: 6px solid #e0e0e0;
    border-top: 6px solid #007bff;
    border-radius: 50%;
    animation: loading-ring-spin 1s linear infinite;
}
@keyframes loading-ring-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Mobile responsiveness */
@media (max-width: 600px) {
    .container-table {
        padding: 8px;
    }
    .search-bar-container {
        flex-direction: column;
        gap: 8px;
        padding: 10px 8px;
        max-width: 100%;
    }
    .custom-table thead th, .custom-table tbody td {
        padding: 8px 6px;
        font-size: 0.95rem;
    }
    .custom-table {
        font-size: 0.95rem;
    }
    .table-responsive {
        overflow-x: auto;
    }
}


.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #333;
    color: #fff;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    z-index: 9999;
    min-width: 200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: fadeIn 0.3s;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
.toast-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: 12px;
}