/* ============================================
   FORMATEUR CSS (Dashboard, Cours management)
============================================ */
.tabs-container {
    display: flex; gap: 1rem; border-bottom: 1px solid var(--border-light);
    margin: 2rem 0 1.5rem 0; padding-bottom: 0;
}
.tab-btn {
    background: transparent; border: none; padding: 0.75rem 1.25rem;
    font-weight: 600; font-size: 0.95rem; cursor: pointer;
    color: var(--text-secondary); border-bottom: 3px solid transparent;
    outline: none; transition: var(--transition);
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.courses-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem;
}
.course-card {
    background: var(--bg-surface); border: 1px solid var(--border-light);
    border-radius: var(--radius-md); padding: 1.25rem; display: flex;
    flex-direction: column; transition: var(--transition);
}
.course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: var(--primary); }
.course-card-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin: 0 0 0.5rem 0; }
.course-card-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; flex-grow: 1; display: flex; flex-direction: column; gap: 0.4rem; }
.course-card-actions { display: flex; gap: 0.5rem; border-top: 1px solid var(--border-light); padding-top: 1rem; }

.empty-state {
    text-align: center; padding: 3rem 1.5rem; background: var(--bg-surface);
    border: 1px dashed var(--border-default); border-radius: var(--radius-md);
    color: var(--text-muted); display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
}
.empty-state i { font-size: 2rem; color: var(--text-muted); margin-bottom: 0.5rem; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
    padding: 0.85rem 1.25rem; text-align: left; background: var(--bg-elevated);
    font-size: 0.8rem; text-transform: uppercase; color: var(--text-muted);
    border-bottom: 1px solid var(--border-light);
}
.data-table td { padding: 1rem 1.25rem; border-bottom: 1px solid var(--border-light); }
.data-table tr { transition: background 0.2s; }
.data-table tr:hover { background: var(--bg-elevated); }