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h3{font-size:.95rem;color:var(--text-secondary)}.rules-empty{font-size:.8rem;color:var(--text-muted)}.rules-group-list,.rules-overlap-list{display:flex;flex-direction:column;gap:10px}.rules-group-card{background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:12px}.rules-group-title{display:flex;gap:8px;align-items:center;margin-bottom:8px}.rules-group-title input,.rules-overlap-row select,.rules-overlap-row input,.rules-group-card textarea{background:var(--bg-secondary);border:1px solid var(--border-medium);border-radius:var(--radius-sm);color:var(--text-primary);padding:8px 10px;font-size:.8rem}.rules-group-title input{flex:1}.rules-group-card textarea{width:100%;resize:vertical}.rules-group-meta{margin-top:8px;display:flex;flex-wrap:wrap;gap:10px;font-size:.72rem;color:var(--text-muted)}.rules-overlap-row{display:grid;grid-template-columns:1fr auto 1fr auto 82px 1fr auto;gap:8px;align-items:center;background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:10px}.rules-between{font-size:.75rem;color:var(--text-muted)}.rules-overlap-result{font-size:.75rem;color:var(--text-secondary)}.rules-overlap-result.exceeded{color:#fca5a5}.modal-footer{padding:16px 20px;border-top:1px solid var(--border-subtle);display:flex;justify-content:flex-end;gap:10px}.overlap-warning-badge{font-size:.68rem;background:#ef444433;color:#fca5a5;border:1px solid rgba(239,68,68,.4);border-radius:9999px;padding:3px 8px;text-transform:uppercase;letter-spacing:.4px}@media(max-width:980px){.app-header{height:auto;flex-wrap:wrap;padding:10px 12px;gap:12px}.header-left{width:100%;justify-content:space-between}.header-stats{width:100%;justify-content:space-between;gap:10px}.header-actions{width:100%;flex-wrap:wrap}.btn{flex:1;justify-content:center}.course-panel{width:min(420px,94vw);position:absolute;right:0;top:0;height:100%;z-index:5;box-shadow:-10px 0 30px #00000059}.rules-overlap-row{grid-template-columns:1fr}.course-suggestion-item{grid-template-columns:1fr;gap:4px}}