/**
 * Loading Component
 *
 * Loading states including skeleton loaders, spinners, and overlay.
 * Provides visual feedback during data fetching and processing.
 */

/* ===== Skeleton Loading ===== */

.skeleton-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.skeleton-list-item {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
}

.skeleton-line {
    height: 1rem;
    background: linear-gradient(
        90deg,
        var(--color-bg-light) 0%,
        var(--color-bg-dark) 50%,
        var(--color-bg-light) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
}

.skeleton-title {
    width: 60%;
    height: 1.5rem;
    margin-bottom: var(--space-md);
}

.skeleton-text {
    width: 100%;
}

.skeleton-text:last-child {
    width: 80%;
    margin-bottom: 0;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}
/* ===== Loading States ===== */

.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    gap: var(--space-md);
}

.loading-inline {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-bg-dark);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-bg-dark);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

.loading-overlay-content {
    background: var(--color-card-bg);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    box-shadow: var(--shadow-xl);
}

.loading-overlay-content p {
    margin: 0;
    font-weight: 500;
}