/* Base styles for dark theme */
body {
    background-color: #111827;
    color: #d1d5db;
}

/* Loader styles */
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    position: fixed;
    top: 50%;
    left: 50%;
    margin-top: -20px;
    margin-left: -20px;
    z-index: 9999;
    display: none; /* Hidden by default */
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Toast notification styles */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    color: #fff;
    font-size: 1rem;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
    transform: translateY(20px);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.toast-success {
    background-color: #28a745;
}

.toast-error {
    background-color: #dc3545;
}

.toast-info {
    background-color: #17a2b8;
}