/* =============================================================================
 *  analytics-styles.css  —  Analytics page (mobile-first)
 *  Relies on chapter-styles.css (.hub-*, .topic-*) and dashboard-styles.css
 *  (.recent-*) for shared rules.
 * ========================================================================== */

.analytics-title {
    color: #fff;
    font-size: 1.6rem;
    margin: 0.5rem 0 1.25rem;
}

/* Summary stat cards */
.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}
.summary-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.summary-num {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}
.summary-num.strong { color: var(--success); }
.summary-num.weak { color: var(--danger); }
.summary-label { font-size: 0.75rem; color: var(--gray); }

/* Topic groups */
.topic-group { margin-bottom: 1.5rem; }
.topic-group:last-child { margin-bottom: 0; }
.topic-group-title {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 0.6rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--light-gray);
}
.topic-group-title small { color: var(--gray); font-weight: 500; }
.topic-group-title a { color: var(--primary); text-decoration: none; }
.topic-group-title a:hover { text-decoration: underline; }

@media (min-width: 600px) {
    .analytics-title { font-size: 2rem; }
    .summary-grid { grid-template-columns: repeat(5, 1fr); }
}