/* TTC Improved Empty States */

.ttc-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--ttc-space-3xl) var(--ttc-space-lg);
    text-align: center;
    min-height: 300px;
    background: var(--ttc-bg-card);
    border: 1px dashed var(--ttc-border-light);
    border-radius: var(--ttc-radius-lg);
}

/* Empty State Icon */
.ttc-empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--ttc-space-lg);
    opacity: 0.5;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Empty State Title */
.ttc-empty-state-title {
    font-size: var(--ttc-fs-lg);
    font-weight: var(--ttc-fw-bold);
    color: var(--ttc-text-main);
    margin: 0 0 var(--ttc-space-sm);
}

/* Empty State Description */
.ttc-empty-state-description {
    font-size: var(--ttc-fs-sm);
    color: var(--ttc-text-muted);
    margin: 0 0 var(--ttc-space-lg);
    max-width: 400px;
    line-height: 1.6;
}

/* Empty State Actions */
.ttc-empty-state-actions {
    display: flex;
    gap: var(--ttc-space-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* Empty State Variants */

/* No Data */
.ttc-empty-state.no-data {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.02), rgba(99, 102, 241, 0.05));
    border-color: rgba(99, 102, 241, 0.2);
}

/* No Results */
.ttc-empty-state.no-results {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.02), rgba(245, 158, 11, 0.05));
    border-color: rgba(245, 158, 11, 0.2);
}

/* No Permissions */
.ttc-empty-state.no-permissions {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.02), rgba(239, 68, 68, 0.05));
    border-color: rgba(239, 68, 68, 0.2);
}

.ttc-empty-state.no-permissions .ttc-empty-state-icon {
    opacity: 0.3;
}

/* No Connection */
.ttc-empty-state.no-connection {
    background: linear-gradient(135deg, rgba(107, 114, 128, 0.02), rgba(107, 114, 128, 0.05));
    border-color: rgba(107, 114, 128, 0.2);
}

/* Compact Empty State */
.ttc-empty-state.compact {
    min-height: 200px;
    padding: var(--ttc-space-2xl) var(--ttc-space-lg);
}

.ttc-empty-state.compact .ttc-empty-state-icon {
    font-size: 40px;
    margin-bottom: var(--ttc-space-md);
}

.ttc-empty-state.compact .ttc-empty-state-title {
    font-size: var(--ttc-fs-md);
}

.ttc-empty-state.compact .ttc-empty-state-description {
    font-size: var(--ttc-fs-xs);
}

/* Large Empty State */
.ttc-empty-state.large {
    min-height: 400px;
    padding: var(--ttc-space-3xl) var(--ttc-space-2xl);
}

.ttc-empty-state.large .ttc-empty-state-icon {
    font-size: 80px;
}

.ttc-empty-state.large .ttc-empty-state-title {
    font-size: var(--ttc-fs-2xl);
}

/* Empty State with Illustration */
.ttc-empty-state-illustration {
    width: 100%;
    max-width: 300px;
    margin-bottom: var(--ttc-space-lg);
    opacity: 0.8;
}

/* Empty State Tips */
.ttc-empty-state-tips {
    background: var(--ttc-bg-page);
    border-radius: var(--ttc-radius-md);
    padding: var(--ttc-space-md);
    margin-top: var(--ttc-space-lg);
    text-align: left;
}

.ttc-empty-state-tips-title {
    font-weight: var(--ttc-fw-semibold);
    font-size: var(--ttc-fs-xs);
    color: var(--ttc-text-main);
    margin-bottom: var(--ttc-space-sm);
}

.ttc-empty-state-tips-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ttc-empty-state-tips-item {
    display: flex;
    gap: var(--ttc-space-sm);
    padding: var(--ttc-space-xs) 0;
    font-size: var(--ttc-fs-xs);
    color: var(--ttc-text-muted);
}

.ttc-empty-state-tips-item::before {
    content: '→';
    flex-shrink: 0;
    color: var(--ttc-primary);
    font-weight: var(--ttc-fw-bold);
}

/* Skeleton Loading (Empty State Placeholder) */
.ttc-skeleton {
    background: linear-gradient(
        90deg,
        var(--ttc-border-subtle),
        var(--ttc-border-light),
        var(--ttc-border-subtle)
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--ttc-radius-md);
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.ttc-skeleton-text {
    height: 12px;
    margin-bottom: var(--ttc-space-sm);
    border-radius: var(--ttc-radius-sm);
}

.ttc-skeleton-title {
    height: 20px;
    margin-bottom: var(--ttc-space-md);
    border-radius: var(--ttc-radius-sm);
}

.ttc-skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.ttc-skeleton-card {
    height: 200px;
    border-radius: var(--ttc-radius-lg);
}

/* Animated Skeleton */
.ttc-skeleton.animated {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}