.grammar-body { margin-top: 1.25rem; min-width: 0; }
.grammar-card { padding: 1rem; border: 1px solid var(--border, #e2e6ed); border-radius: 12px; margin: .8rem 0; min-width: 0; overflow-wrap: anywhere; }
.grammar-rule, .grammar-question { white-space: pre-wrap; line-height: 1.8; }
.grammar-question { font-size: 1.12rem; font-weight: 600; }
.grammar-controls { align-items: end; }
.grammar-controls label { flex: 1 1 12rem; min-width: 0; }
.grammar-card textarea, .grammar-card select { width: 100%; max-width: 100%; box-sizing: border-box; }
.grammar-confirm { padding: 1rem; border: 1px solid #b6c9ff; border-radius: 12px; background: #f3f6ff; margin: 1rem 0; overflow-wrap: anywhere; }
#grammar-study-host .workspace-tabs { overflow-x: auto; flex-wrap: nowrap; }
#grammar-study-host .workspace-tabs [aria-pressed="true"] { color: #2155d6; font-weight: 700; border-bottom: 3px solid #2155d6; }
.grammar-study-detail { min-width: 0; }