.practice-page{background:#090b0e;color:var(--ink)}.practice-page [hidden]{display:none!important}.practice-main{width:min(1180px,calc(100% - 28px));margin:0 auto;padding:28px 0 72px}.practice-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}.practice-head h1{margin:4px 0 0;font-size:36px}.practice-head p{margin:8px 0 0;color:var(--muted);font-size:14px}.progress-readout{min-width:160px;text-align:right}.progress-readout strong{display:block;font:750 22px/1 Georgia,serif}.progress-track{height:5px;margin-top:9px;border-radius:3px;background:#242932;overflow:hidden}.progress-track i{display:block;width:0;height:100%;background:var(--accent);transition:width .24s ease}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,370px);gap:14px;align-items:start}.board-stage{min-width:0;padding:14px;border:1px solid var(--line);border-radius:7px;background:#0d1014}.position-board{width:100%;aspect-ratio:220/150;display:grid;place-items:center}.position-board svg{display:block;width:100%;height:100%;filter:drop-shadow(0 14px 24px rgba(0,0,0,.42))}.board-meta{min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:10px;padding:0 4px;color:var(--muted);font-size:11px}.board-meta span{display:inline-flex;align-items:center;gap:6px}.dice-label{color:var(--accent);font-weight:800}.decision-panel{min-height:100%;padding:17px;border:1px solid var(--line);border-radius:7px;background:var(--surface)}.decision-panel h2{margin:6px 0 8px;font-size:25px}.decision-panel>p{color:var(--muted);font-size:13px}.choice-stack{display:grid;gap:7px;margin-top:17px}.move-choice{width:100%;min-height:54px;display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:9px;padding:7px 11px;border:1px solid var(--line);border-radius:6px;background:#0c0f13;color:var(--ink);text-align:left;cursor:pointer}.move-choice:hover{border-color:#535b66;background:#13171c}.move-choice[aria-pressed="true"]{border-color:var(--accent);background:rgba(224,187,102,.08)}.choice-key{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line);color:var(--muted);font-weight:850}.move-choice[aria-pressed="true"] .choice-key{border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.move-notation{font:750 18px/1.1 Georgia,serif}.decision-actions{display:flex;gap:8px;margin-top:14px}.decision-actions .button{flex:1}.answer-result{margin-top:14px;padding:13px;border-left:3px solid var(--accent);background:#0c0f13;color:var(--muted);font-size:12.5px}.answer-result strong{display:block;margin-bottom:5px;color:var(--ink);font-size:14px}.answer-result.correct{border-left-color:var(--good)}.answer-result.incorrect{border-left-color:var(--danger)}.practice-loading{min-height:62vh;display:grid;place-items:center;color:var(--muted)}.practice-error{width:min(620px,100%);margin:14vh auto;padding:24px;border:1px solid var(--line);border-radius:7px;background:var(--surface);text-align:center}.practice-error p{color:var(--muted)}.archive{margin-top:24px;border-top:1px solid var(--line);padding-top:24px}.archive-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:12px}.archive-head h2{margin:4px 0 0}.archive-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.archive-item{min-height:106px;padding:14px;border-right:1px solid var(--line);color:var(--ink);text-decoration:none}.archive-item:last-child{border-right:0}.archive-item span{display:block;color:var(--muted);font-size:10px}.archive-item strong{display:block;margin:7px 0 5px;font:700 14px/1.25 Georgia,serif}.archive-item small{color:var(--accent);font-size:10px}.score-panel{grid-column:1/-1;display:grid;grid-template-columns:240px minmax(0,1fr);gap:22px;padding:24px;border:1px solid var(--line);border-radius:7px;background:var(--surface)}.score-number{display:grid;place-items:center;align-content:center;min-height:230px;border-right:1px solid var(--line)}.score-number strong{color:var(--accent);font:750 70px/1 Georgia,serif}.score-number span{margin-top:8px;color:var(--muted);font-size:12px}.score-copy h2{margin:5px 0 8px;font-size:30px}.score-copy p{color:var(--muted)}.result-list{max-height:330px;margin-top:16px;overflow:auto;border-top:1px solid var(--line)}.result-row{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:55px;border-bottom:1px solid var(--line);font-size:12px}.result-row .result-mark{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:rgba(224,123,114,.13);color:var(--danger);font-weight:850}.result-row.correct .result-mark{background:rgba(127,181,142,.13);color:var(--good)}.result-row small{color:var(--muted)}.result-row strong{font-family:Georgia,serif}.result-row>a{color:var(--accent);font-size:10px}.challenge-note{margin-top:14px;color:var(--muted);font-size:11px}.challenge-note a{color:var(--ink)}
.decision-panel{min-height:0}.decision-actions .button:disabled{border-color:#2b3038;background:#171b21;color:#6f7782;box-shadow:none;cursor:not-allowed;opacity:.72}
@media(max-width:980px){.practice-layout{grid-template-columns:minmax(0,1fr) 320px}.archive-grid{grid-template-columns:repeat(3,1fr)}.archive-item:nth-child(3){border-right:0}.archive-item:nth-child(n+4){border-top:1px solid var(--line)}}
@media(max-width:760px){.practice-main{width:min(100% - 16px,680px);padding-top:17px}.practice-head{align-items:flex-start}.practice-head h1{font-size:29px}.practice-head p{font-size:12px}.progress-readout{min-width:105px}.practice-layout{grid-template-columns:1fr}.board-stage{padding:7px}.decision-panel{padding:14px}.decision-panel h2{font-size:22px}.archive-grid{grid-template-columns:1fr 1fr}.archive-item,.archive-item:nth-child(3){border-right:1px solid var(--line);border-top:1px solid var(--line)}.archive-item:nth-child(odd){border-left:0}.archive-item:nth-child(even){border-right:0}.score-panel{grid-template-columns:1fr;padding:17px}.score-number{min-height:145px;border-right:0;border-bottom:1px solid var(--line);padding-bottom:18px}.score-number strong{font-size:58px}}
@media(max-width:460px){.practice-head{display:grid}.progress-readout{width:100%;text-align:left}.board-meta{min-height:38px}.move-choice{min-height:50px}.move-notation{font-size:16px}.archive-grid{grid-template-columns:1fr}.archive-item{border-right:0!important}.result-row{grid-template-columns:32px 1fr}.result-row>a{grid-column:2}}

.practice-loading{min-height:360px;display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,370px);gap:14px;align-items:stretch;color:var(--muted)}
.practice-loading__board{min-width:0;display:grid;place-items:center;padding:14px;border:1px solid var(--line);border-radius:7px;background:#0d1014;overflow:hidden}
.practice-loading__board img{display:block;width:100%;height:auto;border-radius:5px;opacity:.42;filter:saturate(.55) brightness(.7)}
.practice-loading__copy{display:flex;flex-direction:column;justify-content:center;padding:24px;border:1px solid var(--line);border-radius:7px;background:var(--surface)}
.practice-loading__copy strong{margin-top:8px;color:var(--ink);font:750 25px/1.2 Georgia,serif}
.practice-loading__copy p{margin:9px 0 0;color:var(--muted);font-size:13px;line-height:1.5}
@media(max-width:760px){.practice-loading{min-height:0;grid-template-columns:1fr}.practice-loading__copy{min-height:150px}.practice-loading__board{padding:8px}}