feat(M01): 로직 개선 시험 줄 모달 — 한 줄 풀이와 알약 단추(누른 자료 하나만 펼침·접힘) (PLAN 5-3)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PAdA5ThqmtVSsbzjusk1cJ

M01_MasterData/M01_MasterData_UI_LogicLab_Pill.css

@@ -0,0 +1,35 @@
+/* M01 로직 개선 시험 — 줄 모달의 알약 단추 */
+.m01lab__pills {
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-8);
+  min-width: 0;
+}
+
+.m01lab__pill-row {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--spacing-8);
+}
+
+.m01lab__pill {
+  padding: var(--spacing-4) var(--spacing-12);
+  border: 1px solid var(--color-border);
+  border-radius: 999px;
+  background: var(--color-bg);
+  color: var(--color-text);
+  font: inherit;
+  cursor: pointer;
+  max-width: 100%;
+  overflow-wrap: anywhere;
+}
+
+.m01lab__pill.is-open {
+  background: var(--color-accent);
+  border-color: var(--color-accent);
+  color: var(--color-bg);
+}
+
+.m01lab__pill-stage {
+  min-width: 0;
+}