/* ======================
   KEYWORDS ANALYSIS STYLING
   ====================== */

/* Keywords Tab Specific Styling */
#keywords-tab .score-card {
    background: var(--card-bg);
}

#keywords-tab .analysis-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

#keywords-tab .analysis-card::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 20%;
    right: 20%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

#keywords-tab .analysis-card:hover::after {
    opacity: 1;
}

/* Keywords Info Section */
.keywords-info {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 16px;
}

.keyword-count {
    background: var(--chip-bg-strong);
    color: var(--chip-text);
    padding: 8px 16px;
    border: 1px solid var(--chip-border-strong);
    border-radius: var(--chip-radius);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--chip-shadow);
    animation: fadeInUp 0.6s ease-out;
}

/* Keywords Container */
.keywords-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    padding: 0;
}

/* Primary Keyword Tags */
.keyword-tag {
    background: var(--chip-bg-strong);
    color: var(--chip-text);
    padding: 8px 16px;
    border: 1px solid var(--chip-border-strong);
    border-radius: var(--chip-radius);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    animation: fadeInScale 0.4s ease-out;
    animation-fill-mode: both;
}

.keyword-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.keyword-tag:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

.keyword-tag:hover::before {
    left: 100%;
}

.keyword-tag:nth-child(even) {
    animation-delay: 0.1s;
}

.keyword-tag:nth-child(3n) {
    animation-delay: 0.2s;
}

/* Semantic Clusters */
.semantic-clusters {
    margin-top: 30px;
}

.clusters-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 20px;
}

.cluster-group {
    background: var(--card-bg);
    border: var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.cluster-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-color), var(--primary-dark));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cluster-group:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border-color);
}

.cluster-group:hover::before {
    opacity: 1;
}

.cluster-group h4 {
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: capitalize;
    position: relative;
    padding-left: 24px;
}

.cluster-group h4::before {
    content: '📂';
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1rem;
}

.cluster-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cluster-keyword-tag {
    background: var(--chip-bg);
    color: var(--chip-text);
    padding: 6px 12px;
    border-radius: var(--chip-radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--chip-border);
    animation: fadeInScale 0.4s ease-out;
    animation-fill-mode: both;
}

.cluster-keyword-tag:hover {
    background: var(--surface-elevated);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.cluster-keyword-tag:nth-child(even) {
    animation-delay: 0.05s;
}

.cluster-keyword-tag:nth-child(3n) {
    animation-delay: 0.1s;
}

/* Searchable Tags */
.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    padding: 0;
}

.search-tag {
    background: var(--chip-bg);
    color: var(--chip-text);
    padding: 8px 14px;
    border-radius: var(--chip-radius);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--chip-border);
    position: relative;
    overflow: hidden;
    animation: fadeInScale 0.4s ease-out;
    animation-fill-mode: both;
}

.search-tag::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(52, 211, 153, 0.1), transparent);
    transition: left 0.4s ease;
}

.search-tag:hover {
    background: var(--chip-bg-strong);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--chip-border-strong);
}

.search-tag:hover::after {
    left: 100%;
}

.search-tag:nth-child(even) {
    animation-delay: 0.1s;
}

.search-tag:nth-child(3n) {
    animation-delay: 0.2s;
}

/* Keywords Analysis List */
#keywords-analysis {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

#keywords-analysis li {
    background: var(--card-bg);
    border: var(--glass-border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 0.95rem;
    line-height: 1.6;
    position: relative;
    transition: all 0.3s ease;
    animation: fadeInUp 0.5s ease-out;
    animation-fill-mode: both;
}

#keywords-analysis li::before {
    content: '💡';
    position: absolute;
    left: 20px;
    top: 16px;
    font-size: 1rem;
    margin-right: 12px;
}

#keywords-analysis li {
    padding-left: 50px;
}

#keywords-analysis li:hover {
    background: var(--card-bg);
    border-color: var(--border-color);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

#keywords-analysis li:nth-child(even) {
    animation-delay: 0.1s;
}

#keywords-analysis li:nth-child(3n) {
    animation-delay: 0.2s;
}

/* Animation Keyframes */
@keyframes fadeInScale {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Interactive States */
.keyword-tag.selected,
.cluster-keyword-tag.selected,
.search-tag.selected {
    background: var(--chip-bg-strong);
    color: var(--chip-text);
    border-color: var(--chip-border-strong);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* Loading State */
.keywords-container.loading,
.clusters-container.loading,
.tags-container.loading {
    opacity: 0.6;
    pointer-events: none;
}

.keywords-container.loading::after,
.clusters-container.loading::after,
.tags-container.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

/* Responsive Design */
@media (max-width: 768px) {
    .clusters-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .cluster-group {
        padding: 16px;
    }
    
    .cluster-group h4 {
        font-size: 1rem;
        margin-bottom: 12px;
    }
    
    .keyword-tag,
    .search-tag {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .cluster-keyword-tag {
        font-size: 0.75rem;
        padding: 4px 8px;
    }
    
    #keywords-analysis li {
        padding: 12px 16px 12px 40px;
        font-size: 0.9rem;
    }
    
    #keywords-analysis li::before {
        left: 16px;
        top: 12px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .keywords-container,
    .tags-container {
        gap: 8px;
    }
    
    .cluster-keywords {
        gap: 6px;
    }
    
    .keyword-tag,
    .search-tag {
        font-size: 0.75rem;
        padding: 5px 10px;
    }
    
    .cluster-keyword-tag {
        font-size: 0.7rem;
        padding: 3px 6px;
    }
    
    .cluster-group h4 {
        font-size: 0.95rem;
        padding-left: 20px;
    }
    
    .cluster-group h4::before {
        font-size: 0.9rem;
    }
}

/* Ripple Effect Animation */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* Expanded Analysis Items */
#keywords-analysis li.expanded {
    background: var(--card-bg);
    border-color: var(--border-color);
    transform: translateX(8px);
    box-shadow: var(--shadow-hover);
    cursor: pointer;
}

#keywords-analysis li.expanded::before {
    content: '💡';
    animation: pulse 2s infinite;
}

/* Search Container Styling */
.keyword-search-container {
    animation: fadeInUp 0.6s ease-out;
}

.keyword-search-container input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--input-focus);
}

/* Enhanced Hover States */
.keyword-tag:active,
.cluster-keyword-tag:active,
.search-tag:active {
    transform: translateY(-1px) scale(0.98);
}

/* Accessibility Improvements */
.keyword-tag:focus,
.cluster-keyword-tag:focus,
.search-tag:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading Animation Enhancement */
@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Smooth Transitions for All Interactive Elements */
.keyword-tag,
.cluster-keyword-tag,
.search-tag,
.cluster-group,
#keywords-analysis li {
    will-change: transform, opacity, box-shadow;
}

/* Performance Optimization */
.keywords-container,
.clusters-container,
.tags-container {
    contain: layout style paint;
}