.session-reset{border:0;background:transparent;color:#5577ad;font-size:.76rem;font-weight:700;padding:7px 0;white-space:nowrap}.session-reset:hover{text-decoration:underline}
.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:5px;background:#eef2f7;border-radius:11px;padding:5px;margin-top:25px}.mode-button{border:0;border-radius:8px;background:transparent;color:#687b95;padding:10px 6px;font-size:.84rem;font-weight:700}.mode-button:hover{color:#294d81}.mode-button.active{background:#fff;color:#214f9c;box-shadow:0 2px 9px rgba(30,55,90,.1)}
.mode-help{font-size:.76rem;line-height:1.5;color:#7889a0;margin:9px 1px 0;min-height:1.5em}.practice-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:17px}.practice-stats>div{border:1px solid #e4eaf2;border-radius:10px;padding:11px 8px;background:#fafcff;display:flex;flex-direction:column;align-items:center;gap:1px}.practice-stats strong{font-size:1.26rem;line-height:1.2;font-variant-numeric:tabular-nums;color:#1c3457}.practice-stats span{font-size:.73rem;color:#8493a7}
.completion-state{text-align:center;padding:44px 10px 32px}.completion-icon{width:52px;height:52px;display:grid;place-items:center;border-radius:50%;background:#e8f4ec;color:#298257;font-size:1.8rem;font-weight:700;margin:auto}.completion-state h3{font-size:1.15rem;margin:18px 0 4px}.completion-state p{font-size:.87rem;color:#77869b;margin:0 0 24px}.completion-state .next-button{padding:12px 18px}
@media(max-width:680px){.mode-switch{margin-top:18px}.practice-stats{margin-top:13px}.session-reset{font-size:.73rem}}
@media(min-width:1181px){.workspace{grid-template-columns:220px minmax(330px,1fr) minmax(440px,540px)}}
@media(min-width:981px) and (max-width:1180px){.workspace{grid-template-columns:190px minmax(320px,1fr) minmax(400px,460px)}}
@media(min-width:981px) and (max-width:1280px){.case-section .section-header{align-items:flex-start;flex-direction:column;gap:12px}}

.history-tools{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:14px}
.history-tools button{min-height:42px;padding:9px 8px;border:1px solid #dce5ef;border-radius:9px;background:#fff;color:#315783;font-size:.78rem;font-weight:700}
.history-tools button:hover:not(:disabled){background:#f2f7ff;border-color:#adc6e7}
.history-tools button:disabled{opacity:.46;cursor:not-allowed}
.history-tools #clearPracticeButton{color:#9a5353}
.history-tools #clearPracticeButton:hover:not(:disabled){background:#fff6f5;border-color:#e6b8b5}
.last-solve-time{margin:12px 0 0;padding:10px 12px;border-radius:9px;background:#ecf5ff;color:#28538c;font-size:.82rem;font-weight:700;font-variant-numeric:tabular-nums}
.last-solve-time[hidden]{display:none}
.favorites-tools{margin-top:12px}
.favorites-tools button{width:100%;min-height:42px;padding:9px 12px;border:1px solid #e8d6a3;border-radius:9px;background:#fff9e8;color:#805b12;font-size:.84rem;font-weight:800}
.favorites-tools button:hover:not(:disabled){background:#fff1c5;border-color:#d8b966}
.favorites-tools button:disabled{opacity:.55;cursor:not-allowed}
.cube-figure{position:relative;width:210px;max-width:calc(100% - 32px);display:grid;place-items:center}
.cube-figure img{display:block;min-width:0;max-width:100%}
.favorite-button{position:absolute;top:-12px;right:-36px;display:grid;place-items:center;width:40px;height:40px;padding:0;border:1px solid #d9e0e9;border-radius:50%;background:#fff;color:#728198;font-size:1.55rem;line-height:1;box-shadow:0 4px 14px rgba(27,43,65,.13)}
.favorite-button:hover:not(:disabled){border-color:#d2ad52;background:#fffaf0;color:#ad770c;transform:translateY(-1px)}
.favorite-button[aria-pressed="true"]{border-color:#e0bd61;background:#fff1c5;color:#9b6b09}
.favorite-button:disabled{opacity:.5;cursor:not-allowed}