.sets-main{width:min(100% - 40px,900px);margin:0 auto;padding:42px 0 70px}.sets-main h1{margin:0 0 8px;font-size:32px}.intro{margin:0;color:var(--muted)}.set-list{display:grid;gap:12px;margin-top:30px}.set-link,.set-menu{display:block;padding:21px;color:var(--ink);text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:16px}.set-link:hover{border-color:var(--blue)}.set-link h2,.set-menu h2{margin:0;font-size:19px}.set-link p,.set-menu p{margin:8px 0 0;color:var(--muted);font-size:13px}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}.tags span{padding:4px 7px;color:var(--muted);background:var(--bg);border-radius:99px;font-size:11px}.empty-sets{margin-top:30px;padding:35px;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:16px}.empty-sets h2{margin:0}.empty-sets p{color:var(--muted)}.order-label{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:24px;font-weight:700}.order-label select{min-width:180px;padding:10px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink);font:inherit;font-weight:400}.menu-actions{display:grid;gap:10px;margin-top:25px}.menu-actions a,.menu-actions button{padding:14px;border:1px solid var(--line);border-radius:10px;color:var(--ink);background:var(--surface);font:inherit;text-align:left;text-decoration:none}.menu-actions button:disabled{cursor:not-allowed;opacity:.45}.menu-actions .start{color:#fff;background:var(--blue);border-color:var(--blue)}.history-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:25px}.history-stats article{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:13px}.history-stats span,.history-stats strong{display:block}.history-stats span{color:var(--muted);font-size:12px}.history-stats strong{margin-top:7px;font-size:25px}.history-section{margin-top:32px}.history-section h2{font-size:18px}.wrong-list,.history-list{padding:0;margin:0;list-style:none}.wrong-list li,.history-list div{margin-top:7px;padding:12px;background:var(--surface);border:1px solid var(--line);border-radius:9px;font-size:13px}.chart{min-height:170px;padding:12px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.chart svg{width:100%;height:150px}.study-card{padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:16px}.study-progress{color:var(--muted);font-size:13px}.study-card h1{margin:15px 0;font-size:21px}.answer-choice{display:flex;gap:10px;align-items:center;margin-top:9px;padding:12px;border:1px solid var(--line);border-radius:9px;cursor:pointer;transition:background .15s,border-color .15s}.answer-choice input{margin:0}.answer-choice:has(input:checked){border-color:#7899ea;background:#edf2ff}.answer-choice.is-correct{border-color:#65ad7a;background:#eaf7ef}.answer-choice.is-correct:has(input:checked){border-color:#65ad7a;background:#eaf7ef}.answer-input{width:100%;padding:12px;border:1px solid var(--line);border-radius:9px;font:inherit}.result{margin-top:18px;padding:14px;border-radius:9px;background:var(--bg)}.result.ok{color:#287143;background:#eaf7ef}.result.no{color:#a23947;background:#fff0f1}.confetti-layer{position:fixed;top:18%;left:50%;z-index:20;width:1px;height:1px;pointer-events:none}.confetti-layer i{position:absolute;width:7px;height:11px;border-radius:2px;opacity:0;animation:confetti-pop .82s cubic-bezier(.18,.7,.3,1) var(--d) forwards}@keyframes confetti-pop{0%{opacity:0;transform:translate(0,0) rotate(0)}15%{opacity:1}100%{opacity:0;transform:translate(var(--x),135px) rotate(var(--r))}}.review-list{display:grid;gap:9px;margin:20px 0}.review-item{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:13px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit;text-align:left}.review-item span{font-size:12px;color:var(--muted)}.review-item strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.review-item em{font-size:12px;font-style:normal}.review-item.is-wrong{border-color:#e6a5ac;background:#fff2f3}.review-item.is-wrong em{color:#a23947}.review-item.is-correct em{color:#287143}.review-detail dl{display:grid;gap:12px;margin:24px 0}.review-detail dl div{padding:13px;border-radius:10px;background:var(--bg)}.review-detail dt{color:var(--muted);font-size:12px}.review-detail dd{margin:7px 0 0;line-height:1.6}@media(max-width:600px){.sets-main{width:min(100% - 30px,900px);padding:28px 0 50px}.history-stats{grid-template-columns:1fr}.menu-actions a,.menu-actions button{padding:13px}.order-label{align-items:flex-start;flex-direction:column}.order-label select{width:100%}.review-item{grid-template-columns:auto 1fr}.review-item em{grid-column:2}}