/* 
 * Readability Statistics Master Tool - CSS
 */

:root {
    --readability-easy: #d1fae5;
    --readability-moderate: #fef3c7;
    --readability-hard: #fee2e2;
    --readability-very-hard: #fca5a5;

    --readability-easy-text: #065f46;
    --readability-moderate-text: #92400e;
    --readability-hard-text: #991b1b;
    --readability-very-hard-text: #7f1d1d;
}

/* Heatmap Styles */
#heatmapContainer {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #1f2937;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    padding: 1.5rem;
    border-radius: 0.75rem;
    background: #fff;
    border: 1px solid #e5e7eb;
    min-height: 200px;
}

.heatmap-lvl-0 {
    background-color: transparent;
}

.heatmap-lvl-1 {
    background-color: var(--readability-easy);
    color: var(--readability-easy-text);
    padding: 2px 4px;
    border-radius: 4px;
}

.heatmap-lvl-2 {
    background-color: var(--readability-moderate);
    color: var(--readability-moderate-text);
    padding: 2px 4px;
    border-radius: 4px;
}

.heatmap-lvl-3 {
    background-color: var(--readability-hard);
    color: var(--readability-hard-text);
    padding: 2px 4px;
    border-radius: 4px;
}

.heatmap-lvl-4 {
    background-color: var(--readability-very-hard);
    color: var(--readability-very-hard-text);
    padding: 2px 4px;
    border-radius: 4px;
}

/* Dashboard Cards */
.stats-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid #e5e7eb;
}

.stats-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.stats-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 1rem;
}

/* Multi-Metric Table */
.metric-table td {
    padding: 1rem 0.75rem;
}

/* Compare Mode */
.compare-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 992px) {
    .compare-container {
        grid-template-columns: 1fr;
    }
}

/* Suggestion Tooltips */
.suggestion-highlight {
    border-bottom: 2px dashed #9ca3af;
    cursor: help;
    transition: background 0.2s;
}

.suggestion-highlight:hover {
    background-color: rgba(156, 163, 175, 0.1);
}

.suggestion-passive {
    border-bottom-color: #3b82f6;
}

.suggestion-adverb {
    border-bottom-color: #f59e0b;
}

.suggestion-weak {
    border-bottom-color: #ef4444;
}