/* ================================
   Loading & Toast Notifications
   ================================ */

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

.loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-message {
    font-size: var(--font-size-sm);
    color: var(--muted-foreground);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    padding: var(--space-md) var(--space-lg);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-tooltip);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-smooth);
    max-width: 400px;
}

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

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--foreground);
}

.toast-info {
    border-left: 4px solid var(--info);
}

.toast-success {
    border-left: 4px solid var(--success);
}

.toast-error {
    border-left: 4px solid var(--error);
}

.toast-warning {
    border-left: 4px solid var(--warning);
}

@media (prefers-color-scheme: dark) {
    .loading-overlay {
        background: rgba(10, 10, 10, 0.9);
    }
}