.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    flex-direction: column;
    backdrop-filter: blur(4px);
}

:root[data-theme="light"] .loading-overlay {
    background-color: rgba(255, 255, 255, 0.8);
}

.loading-overlay .spinner {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.25);
    border-top-color: var(--accent-color, #38bdf8);
    animation: spin 0.85s linear infinite;
    margin-bottom: 1rem;
}

:root[data-theme="light"] .loading-overlay .spinner {
    border-color: rgba(15, 23, 42, 0.15);
    border-top-color: var(--primary-color, #2563eb);
}

.notification {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    color: white;
    max-width: 350px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all 0.3s ease;
    transform: translateY(100px);
    opacity: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification.success {
    background-color: var(--success-color);
}

.notification.error {
    background-color: var(--danger-color);
}

.notification.info {
    background-color: var(--info-color);
}

.notification.warning {
    background-color: var(--warning-color);
}

.notification-icon {
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
}

.notification-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
    padding: 0.25rem;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

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