/**
 * Alert Tabs Styling for PascoWeather.com
 * Provides tabbed interface for current and recent weather alerts
 */

/* Alert Tabs Container */
.alert-tabs {
    margin-bottom: 1.5rem;
    position: relative;
}

/* Accessibility improvements */
.alert-tabs .nav-tabs .nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
    position: relative;
    z-index: 1;
}

/* Tab Navigation */
.alert-tabs .nav-tabs {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
    display: flex;
    gap: 0.25rem;
}

.alert-tabs .nav-tabs .nav-link {
    color: var(--text-color);
    border: 1px solid transparent;
    border-top-left-radius: 0.375rem;
    border-top-right-radius: 0.375rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
}

.alert-tabs .nav-tabs .nav-link:hover {
    border-color: var(--border-color) var(--border-color) transparent;
    background-color: rgba(0, 0, 0, 0.03);
}

.alert-tabs .nav-tabs .nav-link.active {
    color: var(--primary-color);
    background-color: var(--card-bg);
    border-color: var(--border-color) var(--border-color) var(--card-bg);
    font-weight: 600;
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 1;
}

/* Add a subtle indicator for the active tab */
.alert-tabs .nav-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

/* Alert Count Badge */
.alert-tabs .nav-tabs .nav-link .badge {
    margin-left: 0.5rem;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
}

/* Tab Content */
.alert-tabs .tab-content {
    background-color: var(--card-bg);
    border-radius: 0.375rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-top: none;
    transition: opacity 0.2s ease;
}

/* Smooth tab transitions */
.alert-tabs .tab-pane {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.alert-tabs .tab-pane.fade:not(.show) {
    transform: translateY(10px);
    display: block;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.alert-tabs .tab-pane.fade.show {
    transform: translateY(0);
}

/* Alert Cards within Tabs */
.alert-tabs .tab-pane .card {
    margin-bottom: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.alert-tabs .tab-pane .card:last-child {
    margin-bottom: 0;
}

.alert-tabs .tab-pane .card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Active Alert Indicator */
.alert-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.alert-indicator.active {
    background-color: var(--danger-color);
    animation: pulse 2s infinite;
}

.alert-indicator.expired {
    background-color: var(--text-muted);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .alert-tabs .nav-tabs .nav-link {
        padding: 0.4rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .alert-tabs .tab-content {
        padding: 0.75rem;
    }
    
    /* Make tabs full width on mobile */
    .alert-tabs .nav-tabs {
        display: flex;
    }
    
    .alert-tabs .nav-tabs .nav-item {
        flex: 1;
        text-align: center;
    }
    
    .alert-tabs .nav-tabs .nav-link {
        width: 100%;
        padding: 0.5rem 0.25rem;
    }
    
    /* Smaller badges on mobile */
    .alert-tabs .nav-tabs .nav-link .badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
}

/* Dark Mode Adjustments */
[data-theme="dark"] .alert-tabs .nav-tabs .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .alert-tabs .nav-tabs .nav-link.active {
    background-color: var(--card-bg);
    color: var(--primary-color);
}

/* Animation for active alerts */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.6; }
    100% { opacity: 1; }
}