/* Text Analysis Tool Styles */
.tool-header {
    margin-bottom: 30px;
}

.breadcrumb {
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.tool-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 800px;
    line-height: 1.6;
}

.tool-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .tool-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Input Section */
.input-section {
    background: var(--surface);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.input-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.input-header h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

.input-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

#inputText {
    width: 100%;
    min-height: 300px;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    resize: vertical;
    background: var(--background);
    color: var(--text-primary);
    transition: border-color 0.3s ease;
}

#inputText:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.text-stats {
    display: flex;
    gap: 20px;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

/* Results Section */
.results-section {
    background: var(--surface);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.results-header h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

.export-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.results-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    padding-bottom: 5px;
}

.tab-btn {
    padding: 10px 15px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px 6px 0 0;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: var(--background);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    min-height: 300px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Overview Tab */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.metric-card {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.metric-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.overview-summary {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
    border-left: 4px solid var(--primary-color);
}

/* Sentiment Tab */
.sentiment-analysis {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sentiment-chart {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
}

.sentiment-bar {
    display: flex;
    height: 20px;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.sentiment-segment {
    transition: width 0.5s ease;
}

.sentiment-segment.positive {
    background: var(--success-color);
}

.sentiment-segment.neutral {
    background: var(--warning-color);
}

.sentiment-segment.negative {
    background: var(--error-color);
}

.sentiment-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.sentiment-label {
    display: flex;
    align-items: center;
    gap: 5px;
}

.sentiment-label.positive {
    color: var(--success-color);
}

.sentiment-label.neutral {
    color: var(--warning-color);
}

.sentiment-label.negative {
    color: var(--error-color);
}

.sentiment-details {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
}

.sentiment-details h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

#emotion-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.emotion-tag {
    background: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
}

/* Readability Tab */
.readability-metrics {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.metric-name {
    font-weight: 500;
    color: var(--text-primary);
}

.metric-value {
    font-weight: 600;
    color: var(--primary-color);
}

.readability-interpretation {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
    border-left: 4px solid var(--primary-color);
    margin-top: 20px;
}

/* Keywords Tab */
.keywords-section {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.keyword-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.keyword-category {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
}

.keyword-category h4 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

.keyword-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.keyword-tag {
    background: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.9rem;
}

.keyword-frequency {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
}

.keyword-frequency h4 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

#frequency-chart {
    height: 200px;
    display: flex;
    align-items: end;
    gap: 5px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.freq-bar {
    background: var(--primary-color);
    flex: 1;
    min-height: 20px;
    border-radius: 2px 2px 0 0;
    transition: height 0.3s ease;
}

/* Statistics Tab */
.statistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.stat-card {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.detailed-stats {
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
}

.detailed-stats h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

/* Educational Info */
.educational-info {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
}

.educational-info h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.applications {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.application {
    background: var(--surface);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.application strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

/* Loading and Error States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.error {
    border-color: var(--error-color) !important;
    background: #fef2f2 !important;
}

.error-message {
    background: #fef2f2;
    color: var(--error-color);
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #fecaca;
    margin-top: 10px;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .input-header {
        flex-direction: column;
        align-items: stretch;
    }

    .input-controls {
        justify-content: center;
    }

    .results-header {
        flex-direction: column;
        align-items: stretch;
    }

    .export-controls {
        justify-content: center;
    }

    .results-tabs {
        justify-content: flex-start;
    }

    .overview-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .keyword-categories {
        grid-template-columns: 1fr;
    }

    .applications {
        grid-template-columns: 1fr;
    }
}