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var(--border);cursor:pointer;box-shadow:var(--shadow);border-radius:16px;justify-content:center;align-items:center;margin:14px auto;padding:30px;font-size:1.3rem;font-weight:600;display:flex}.flashcard.flipped{background:var(--brand-soft);border-color:var(--brand);font-size:1rem;font-weight:400}.fc-back p{margin:10px 0 0}.bars{align-items:flex-end;gap:14px;height:200px;padding-top:10px;display:flex}.bar-col{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;height:100%;display:flex}.bar-v{background:linear-gradient(180deg, var(--brand), #6366f1);border-radius:6px 6px 0 0;width:100%;max-width:60px;min-height:2px}.lab-grid{grid-template-columns:270px 1fr;align-items:start;gap:16px;display:grid}@media (width<=900px){.lab-grid{grid-template-columns:1fr}.lab-list{max-height:260px}}.lab-list{max-height:calc(100vh - 100px);margin:12px 0;padding:8px;position:sticky;top:76px;overflow-y:auto}.lab-ex{color:var(--text);border-radius:7px;align-items:baseline;gap:8px;padding:6px 8px;font-size:.88rem;display:flex}.lab-ex:hover{background:var(--surface-2);text-decoration:none}.lab-ex.active{background:var(--brand-soft);font-weight:600}.lvl{color:var(--muted);flex:none;width:22px;font-size:.6rem}.ok-mark{color:var(--ok);flex:none;width:22px;font-weight:700}.lab-main{min-width:0}.result-table td.null{color:var(--muted);font-style:italic}.result-table{max-height:420px;overflow:auto}.schema summary{cursor:pointer}.schema-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:12px 0;display:grid}.schema-table{border:1px solid var(--border);border-radius:8px;font-size:.85rem;overflow:hidden}.schema-name{background:var(--brand);color:#fff;font-weight:700;font-family:var(--mono);padding:4px 10px}.schema-col{border-top:1px solid var(--border);font-family:var(--mono);padding:2px 10px}.schema-col .pk{font-weight:700;text-decoration:underline}.schema-col .fk{color:var(--brand);font-style:italic}.tests{flex-direction:column;gap:4px;margin-top:12px;display:flex}.test{border-radius:8px;flex-wrap:wrap;align-items:baseline;gap:10px;padding:6px 10px;font-size:.88rem;display:flex}.test.ok{background:var(--ok-soft)}.test.bad{background:var(--bad-soft)}.search-hit{margin:8px 0}.lesson-end{border-color:var(--brand);margin-top:30px}