@font-face{font-family:Schibsted;src:url(schibsted-grotesk.woff2) format('woff2');font-weight:400 900;font-display:swap}
@font-face{font-family:JetBrains;src:url(jetbrains-mono.woff2) format('woff2');font-weight:400 700;font-display:swap}
:root{color-scheme:dark;--bg:#030705;--panel:#08110c;--ink:#f0f4f1;--muted:#a9bbb0;--faint:#789184;--line:#254131;--strong:#73927e;--amber:#f2b350;--sans:Schibsted,Arial,sans-serif;--mono:JetBrains,monospace}
body,.q-page{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px}
.nicegui-content{padding:0;display:block}
.sudoku-app{max-width:1160px;margin:0 auto;padding:18px 40px 64px}
.masthead{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}
.arcade-link{display:inline-flex;align-items:center;min-height:44px;color:var(--muted);text-decoration:none;font-size:14px}
.arcade-link:hover{color:var(--ink)}
.preview-note{font:11px var(--mono);color:var(--faint);text-align:right}
.title-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:28px 0 38px}
.game-title{font-size:44px;font-weight:600;letter-spacing:-1.7px;line-height:1.1}
.seat-controls{align-items:center;gap:12px}
.seat-text{font:12px var(--mono);color:var(--muted)}
.game-layout{display:grid;grid-template-columns:minmax(0,568px) minmax(280px,1fr);gap:64px;align-items:start}
.puzzle-section{min-width:0}
.puzzle-caption{min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.puzzle-name{font-size:15px;color:var(--muted)}
.puzzle-tools{width:100%;margin-bottom:18px;gap:0}
.import-row{width:100%;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}
.import-row>.q-field{min-width:0}
.import-button{grid-column:1 / -1;width:100%;min-height:44px;background:var(--panel)!important;border:1px solid var(--line);color:var(--ink)!important}
.sudoku-app .import-button{background:var(--panel)!important;color:var(--ink)!important}
.sudoku-app .primary-button{background:var(--amber)!important;color:#11180e!important}
.sudoku-app .quiet-button,.sudoku-app .step-button{color:var(--muted)!important}
.sudoku-app .q-btn-toggle .q-btn{background:transparent!important;color:var(--muted)!important}
.sudoku-app .q-btn-toggle .q-btn[aria-pressed=true]{background:#25352a!important;color:var(--ink)!important}
.q-btn{font-family:var(--sans);font-size:14px;letter-spacing:0;border-radius:3px;box-shadow:none;min-height:44px}
.q-btn:before{box-shadow:none!important}
.q-btn .q-focus-helper{opacity:0!important}
.q-btn:hover:not(.disabled){filter:brightness(1.14)}
.q-btn:focus-visible,.q-item:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--amber);outline-offset:4px}
.quiet-button{color:var(--muted)!important;padding:0 9px}
.quiet-button:hover{color:var(--ink)!important}
.q-btn.disabled{opacity:.35!important}
.q-btn-toggle{border:1px solid var(--line);border-radius:3px;overflow:hidden}
.q-btn-toggle .q-btn{padding:0 12px;background:transparent!important;color:var(--muted)!important;font-size:13px}
.q-btn-toggle .q-btn[aria-pressed=true]{background:#25352a!important;color:var(--ink)!important}
.q-field__native,.q-field__input,.q-field__label,.q-select__dropdown-icon{color:var(--muted)!important}
.q-field--outlined .q-field__control:before{border-color:var(--line)}
.q-field--outlined .q-field__control:hover:before{border-color:var(--strong)}
.q-field--outlined .q-field__control:after{border-color:var(--amber)}
.q-field--float .q-field__label{color:var(--muted)!important}
.puzzle-grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));width:100%;aspect-ratio:1;background:var(--panel);border:2px solid var(--strong)}
.puzzle-cell{min-width:0;min-height:0;display:flex;align-items:center;justify-content:center;position:relative;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.puzzle-cell:nth-child(9n){border-right:0}
.puzzle-cell:nth-child(n+73){border-bottom:0}
.puzzle-cell.box-right{border-right:2px solid var(--strong)}
.puzzle-cell.box-bottom{border-bottom:2px solid var(--strong)}
.clue-input{position:absolute;inset:0;width:100%;height:100%;padding:0;margin:0}
.clue-input .q-field__control,.clue-input .q-field__control-container,.clue-input .q-field__native{min-height:0!important;height:100%!important;padding:0!important}
.clue-input input{font:500 clamp(20px,2.4vw,29px) var(--sans);text-align:center;color:var(--ink)!important;caret-color:var(--amber)}
.clue-input .q-field__control:focus-within{background:#1d2b1e;outline:2px solid var(--amber);outline-offset:-2px}
.clue-input.q-field--disabled,.clue-input.q-field--disabled .q-field__control,.clue-input.q-field--disabled .q-field__native{opacity:1!important}
.cell-value{font-size:clamp(20px,2.4vw,29px);line-height:1.1;font-weight:500}
.cell-value.given{color:var(--ink)}
.cell-value.deduced{color:var(--amber)}
.cell-value.candidates{font:10px/1.4 var(--mono);color:var(--faint);padding:4px;max-width:100%;overflow-wrap:anywhere;text-align:center}
.board-actions{display:flex;gap:16px;justify-content:flex-end;margin-top:8px;min-height:44px}
.action-panel{padding-top:56px;min-width:0}
.activity{border-top:1px solid var(--line);padding-top:22px;min-height:134px;margin-bottom:24px}
.activity-heading{gap:12px;align-items:center;flex-wrap:nowrap}
.activity-title{font-size:29px;letter-spacing:-.8px;font-weight:500;line-height:1.18}
.activity-detail{font:13px/1.7 var(--mono);color:var(--muted);margin-top:14px;white-space:normal}
.activity-note{font-size:14px;line-height:1.6;color:var(--muted);margin-top:12px}
.activity-detail:empty,.activity-note:empty{display:none}
.activity.is-working{border-top-color:var(--amber)}
.activity.is-working .activity-title{color:var(--amber)}
.activity-dot{width:8px;height:8px;border-radius:100%;background:var(--amber);flex-shrink:0;animation:breathe 1.8s ease-in-out infinite}
@keyframes breathe{50%{opacity:.35}}
.primary-actions{gap:10px;margin-bottom:28px;width:100%}
.primary-button{width:100%;background:var(--amber)!important;color:#11180e!important;font-size:16px;font-weight:600;min-height:50px}
.step-button{width:100%;color:var(--muted)!important;border-color:var(--line);min-height:46px}
.disclosure{width:100%;border-top:1px solid var(--line);color:var(--muted)}
.disclosure .q-item{min-height:52px;padding:10px 0;font-size:14px}
.disclosure .q-icon{color:var(--faint)}
.disclosure .q-expansion-item__content{padding:4px 0 18px}
.solver-select{width:100%;margin:4px 0 8px}
.q-menu{background:#112017;color:var(--ink);border:1px solid var(--line)}
.q-checkbox__inner--truthy{color:var(--amber)}
.q-checkbox__bg{border-color:var(--faint)}
.q-checkbox{font-size:14px;min-height:42px}
.techniques{gap:0}
.timing-list{font:12px/2 var(--mono);white-space:pre-line;color:var(--muted)}
.explanation{width:100%;border-top:1px solid var(--line);font-size:14px;line-height:1.65;color:var(--muted)}
.explanation summary{cursor:pointer;min-height:52px;display:flex;align-items:center;justify-content:space-between;list-style:none}
.explanation summary:after{content:'+';font:18px var(--mono);color:var(--faint)}
.explanation details[open] summary:after{content:'−'}
.explanation p{margin:6px 0 18px}
.explanation h3{font-size:14px;color:var(--ink);font-weight:600;margin:24px 0 6px}
.explanation figure{margin:16px 0 22px}
.explanation svg{width:100%;color:var(--faint)}
.explanation figcaption{font-size:12px;line-height:1.6}
.explanation a{color:var(--amber);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.explanation a:hover{color:var(--ink);text-decoration-thickness:2px}
[hidden]{display:none!important}
@media(max-width:900px){.sudoku-app{max-width:640px;padding:12px 24px 40px}.game-layout{grid-template-columns:1fr;gap:12px}.action-panel{padding-top:0}.activity{min-height:0;margin:0 0 20px;padding-top:18px}.title-row{margin:22px 0 20px}.game-title{font-size:36px}.cell-value,.clue-input input{font-size:27px}.primary-actions{flex-direction:row}.primary-button{flex:2}.step-button{flex:1}.puzzle-caption{margin-bottom:8px}.board-actions{margin-bottom:0}.activity-title{font-size:26px}.activity-detail{margin-top:8px}.activity-note{margin-top:8px}}
@media(max-width:420px){.sudoku-app{padding-left:16px;padding-right:16px}.masthead{gap:10px}.preview-note{font-size:9px;max-width:125px}.title-row{gap:12px;align-items:flex-start}.game-title{font-size:31px}.seat-controls{flex-direction:column;gap:0;align-items:flex-end}.seat-text{font-size:10px}.quiet-button{font-size:12px}.import-row{grid-template-columns:1fr}.q-btn-toggle{width:100%}.q-btn-toggle .q-btn{flex:1}.cell-value,.clue-input input{font-size:22px}.puzzle-caption{min-height:35px}.puzzle-name{font-size:13px}}
@media(max-width:900px){.game-layout{display:flex;flex-direction:column;gap:12px}.puzzle-section,.action-panel{display:contents}.puzzle-caption{order:0;width:100%}.activity{order:1;width:100%;margin-bottom:4px}.primary-actions{order:2;margin-bottom:4px}.puzzle-tools{order:3;margin-bottom:4px}.puzzle-grid{order:4}.board-actions{order:5;width:100%}.disclosure{order:6}.explanation{order:7}}

.race-toggle{margin-bottom:14px;color:var(--muted)}
/* Race controls belong to the FHE board. Idle readiness needs no status block. */
.solver-controls{display:contents}
.sudoku-app.is-racing{max-width:1160px}
.race-section{min-width:0}
.human-grid .clue-input:not(.human-given) input{color:var(--amber)!important}
.is-racing .solver-controls{display:flex;flex-direction:column;gap:8px;min-width:0}
.is-racing .activity{border:0;min-height:0;margin:0;padding:0}
.is-racing .activity-title{font-size:21px;letter-spacing:-.3px}
.is-racing .activity-detail,.is-racing .activity-note{margin-top:6px}
.is-racing .primary-actions{margin:0;flex-direction:row;gap:10px}
.is-racing .primary-button{flex:1.4;min-width:0}
.is-racing .step-button{flex:1;min-width:0}
.is-racing .solver-controls .puzzle-caption{margin:0}
@media(min-width:901px){
.is-racing .title-row{margin:20px 0 18px}
.is-racing .game-layout{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 32px}
.is-racing .action-panel,.is-racing .race-section,.is-racing .puzzle-section{display:contents}
.is-racing .race-toggle{grid-column:1 / -1;grid-row:1;margin:0;min-height:32px}
.is-racing .race-section>.puzzle-caption{grid-column:1;grid-row:2;align-self:end;margin:0}
.is-racing .solver-controls{grid-column:2;grid-row:2}
.is-racing .human-grid{grid-column:1;grid-row:3}
.is-racing .puzzle-section>.puzzle-grid{grid-column:2;grid-row:3}
.is-racing .board-actions{grid-column:2;grid-row:4}
.is-racing .puzzle-grid,.is-racing .solver-controls,.is-racing .puzzle-caption,.is-racing .board-actions{max-width:max(300px,calc(100svh - 410px))}
.is-racing .disclosure,.is-racing .explanation{grid-column:1 / -1}
}
@media(max-width:900px){
.race-toggle{order:2}
.is-racing .race-toggle{order:0;margin:0}
.is-racing .solver-controls{order:1;width:100%}
.is-racing .solver-controls .puzzle-caption{order:0}
.is-racing .solver-controls .activity{order:1}
.is-racing .solver-controls .primary-actions{order:2}
.is-racing .puzzle-section>.puzzle-grid{order:2}
.is-racing .board-actions{order:3}
.is-racing .race-section{display:contents}
.is-racing .race-section>.puzzle-caption{order:4;margin:16px 0 0}
.is-racing .human-grid{order:5}
.is-racing .disclosure{order:6}
.is-racing .explanation{order:7}
}