:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--ground-light:#e7ebf0;--ink-light:#0f1115;--color-canvas:var(--lightningcss-light,var(--ground-light))var(--lightningcss-dark,#202020);--color-page:var(--color-canvas);--color-text:var(--lightningcss-light,#15171c)var(--lightningcss-dark,#f2f3f5);--color-text-strong:var(--lightningcss-light,var(--ink-light))var(--lightningcss-dark,#f8f9fb);--color-text-soft:var(--lightningcss-light,#353b46)var(--lightningcss-dark,#c7ccd5);--color-text-muted:var(--lightningcss-light,#5a6170)var(--lightningcss-dark,#9aa1ad);--color-glass:var(--lightningcss-light,#fffc)var(--lightningcss-dark,#2e3036c7);--color-dialog:var(--lightningcss-light,#fffffffa)var(--lightningcss-dark,#282a30fa);--color-line:var(--lightningcss-light,#10141c1a)var(--lightningcss-dark,#ffffff1a);--color-line-strong:var(--lightningcss-light,#10141c29)var(--lightningcss-dark,#ffffff26);--color-ghost:var(--lightningcss-light,#10141c0d)var(--lightningcss-dark,#ffffff0f);--color-hover:var(--lightningcss-light,#10141c14)var(--lightningcss-dark,#ffffff1a);--color-pressed:var(--lightningcss-light,#10141c1c)var(--lightningcss-dark,#ffffff26);--color-primary:var(--lightningcss-light,#15171c)var(--lightningcss-dark,#f6f7f9);--color-primary-ink:var(--lightningcss-light,#f6f7f9)var(--lightningcss-dark,#15171c);--color-primary-hover:var(--lightningcss-light,#2c3039)var(--lightningcss-dark,#fff);--color-live:var(--lightningcss-light,#1f9d5b)var(--lightningcss-dark,#58e39a);--color-focus:var(--lightningcss-light,#2563eb)var(--lightningcss-dark,#7cb4ff);--color-danger:var(--lightningcss-light,#c62828)var(--lightningcss-dark,#ff8a80);--color-danger-line:var(--lightningcss-light,#c6282859)var(--lightningcss-dark,#ff8a8066);--color-danger-soft:var(--lightningcss-light,#c6282814)var(--lightningcss-dark,#ff8a801f);--color-track:var(--lightningcss-light,#10141c1a)var(--lightningcss-dark,#ffffff1a);--color-track-scramble:var(--lightningcss-light,#10141c52)var(--lightningcss-dark,#ffffff4d);--color-track-done:var(--lightningcss-light,#10141c9e)var(--lightningcss-dark,#ffffffb3);--color-scrim:var(--lightningcss-light,#14182047)var(--lightningcss-dark,#08090c9e);--shadow-dialog:0 30px 80px var(--lightningcss-light,#14182038)var(--lightningcss-dark,#00000080);--blur:blur(20px);--radius-control:12px;--radius-panel:20px;--radius-pill:999px;--target:44px;--z-card:15;--z-drawer-backdrop:20;--z-drawer:21;--z-menu-backdrop:30;--z-menu:31;--font-sans:ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;--sticker-r:#b71234;--sticker-l:#ff5800;--sticker-u:#fff;--sticker-d:#ffd500;--sticker-f:#009b48;--sticker-b:#0046ad;font-family:var(--font-sans);font-synthesis:none;color:var(--color-text);background:var(--color-page);-webkit-font-smoothing:antialiased}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}:root[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}.game-shell[data-sticker-palette=high-contrast]{--sticker-r:#780000;--sticker-l:#80406b;--sticker-u:#fff;--sticker-d:#f0990a;--sticker-f:#38e0d0;--sticker-b:#00007b}*{box-sizing:border-box}[hidden]{display:none!important}body{min-width:320px;min-height:100dvh;color:var(--color-text);background:var(--color-page);margin:0}#app{width:100%}button,input,kbd{font:inherit;color:inherit}button{-webkit-tap-highlight-color:transparent}button:disabled,input:disabled{cursor:not-allowed}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}svg{flex-shrink:0;display:block}kbd{font-family:var(--font-mono)}.game-shell{--shell-top:max(12px, env(safe-area-inset-top));height:100dvh;padding:var(--shell-top) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));overscroll-behavior-y:contain;flex-direction:column;gap:8px;display:flex;overflow-y:auto}.game-shell>*{flex-shrink:0}.paint-bar,.timeline,.solver-note,.action-dock,.details-rail{order:1}.details-rail,.detail-panels .panel,.action-dock,.paint-bar{border:1px solid var(--color-line);background:var(--color-glass);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur)}.pill-button,.chip-button{min-width:var(--target);height:var(--target);border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);color:var(--color-text);background:var(--color-ghost);white-space:nowrap;cursor:pointer;align-items:center;gap:8px;padding:0 16px 0 14px;font-size:14px;font-weight:500;transition:background-color .14s,border-color .14s;display:inline-flex}.pill-button:hover:not(:disabled),.chip-button:hover:not(:disabled){background:var(--color-hover)}.pill-button:disabled{opacity:.45}.pill-button--icon,.pill-button:not(.pill-button--icon,.command-trigger){width:var(--target);justify-content:center;padding:0}.pill-button__label{display:none}.chip-button{font-family:var(--font-mono);font-variant-numeric:tabular-nums;padding:0 12px 0 16px;font-size:13px}.command-trigger{width:var(--target);color:var(--color-text-muted);justify-content:center;gap:10px;padding:0;font-size:13px}.command-trigger__label{text-align:left;flex:1;display:none}.command-trigger__key{border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);height:26px;color:var(--color-text-soft);align-items:center;padding:0 9px;font-size:11.5px;display:none}.soft-button{min-width:var(--target);min-height:var(--target);border:1px solid var(--color-line-strong);border-radius:var(--radius-control);color:var(--color-text);white-space:nowrap;cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:6px;padding:0 16px;font-size:13.5px;font-weight:600;transition:background-color .14s,border-color .14s;display:inline-flex}.soft-button:hover:not(:disabled){background:var(--color-hover)}.soft-button[aria-pressed=true]{border-color:var(--color-text-muted);color:var(--color-text-strong);background:var(--color-pressed)}.soft-button--primary{border-color:var(--color-primary);color:var(--color-primary-ink);background:var(--color-primary)}.soft-button--primary:hover:not(:disabled){border-color:var(--color-primary-hover);background:var(--color-primary-hover)}.soft-button--danger{border-color:var(--color-danger-line);color:var(--color-danger)}.soft-button--danger:hover:not(:disabled){background:var(--color-danger-soft)}.soft-button:disabled{opacity:.45}.segmented{border:1px solid var(--color-line);border-radius:var(--radius-pill);background:var(--color-ghost);flex-wrap:wrap;gap:2px;padding:3px;display:inline-flex}.segmented button{min-height:var(--target);border-radius:var(--radius-pill);color:var(--color-text-muted);white-space:nowrap;cursor:pointer;background:0 0;border:none;padding:0 16px;font-size:13.5px;font-weight:600}.segmented button:hover:not(:disabled){color:var(--color-text)}.segmented button[aria-pressed=true]{color:var(--color-text-strong);background:var(--color-pressed)}.rail-button{width:auto;min-height:var(--target);border-radius:var(--radius-pill);color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;flex-direction:row;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-size:13px;font-weight:600;transition:background-color .14s,color .14s;display:flex}.rail-button:hover:not(:disabled){color:var(--color-text);background:var(--color-hover)}.rail-button[aria-pressed=true],.rail-button[aria-expanded=true]{color:var(--color-text-strong);background:var(--color-pressed)}.rail-button:disabled{opacity:.4}.dock-button{border-radius:var(--radius-pill);height:48px;color:var(--color-text);white-space:nowrap;cursor:pointer;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;gap:8px;font-size:14px;font-weight:500;transition:background-color .14s,opacity .14s;display:inline-flex}.dock-button:hover:not(:disabled){background:var(--color-hover)}.dock-button:disabled{opacity:.4}.dock-button--side{width:48px;color:var(--color-text-soft);padding:0}.dock-button--round{background:var(--color-ghost);width:48px;padding:0}.dock-button--primary{min-width:0;color:var(--color-primary-ink);background:var(--color-primary);flex:1;padding:0 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#00000038}.move-dot[data-dot=r]{background:var(--sticker-r)}.move-dot[data-dot=l]{background:var(--sticker-l)}.move-dot[data-dot=u]{background:var(--sticker-u)}.move-dot[data-dot=d]{background:var(--sticker-d)}.move-dot[data-dot=f]{background:var(--sticker-f)}.move-dot[data-dot=b]{background:var(--sticker-b)}.move-dot[data-dot=slice]{opacity:.55;box-shadow:inset 0 0 0 1.5px}.move-chip{width:100%;min-width:var(--target);border:1px solid var(--color-line);height:32px;color:var(--color-text);background:var(--color-ghost);font-family:var(--font-mono);white-space:nowrap;cursor:pointer;border-radius:8px;justify-content:center;align-items:center;gap:5px;margin:6px 0;padding:0 8px;font-size:12.5px;display:flex;position:relative}.move-chip:after{content:"";inset:calc((var(--target) - 32px) / -2 - 1px) 0;position:absolute}.move-chip:hover{background:var(--color-hover)}.move-log__item{align-items:center;gap:5px;display:flex}[data-state=current]>.move-chip{border-color:var(--color-primary);color:var(--color-primary-ink);background:var(--color-primary);font-weight:600}[data-state=pending]>.move-chip{border-style:dashed;border-color:var(--color-line-strong);color:var(--color-text-muted);background:0 0}[data-state=pending] .move-dot{opacity:.4}.number-field,.slider-field{color:var(--color-text-soft);justify-content:space-between;align-items:center;gap:12px;font-size:13.5px;display:flex}.number-field input,.stepper__input{width:5rem;min-height:var(--target);border:1px solid var(--color-line-strong);border-radius:var(--radius-control);color:var(--color-text-strong);background:var(--color-ghost);font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:center;padding:0 8px}.slider-field{grid-template-columns:7.5rem minmax(0,1fr) 3.5rem;display:grid}.slider-field input{width:100%;min-height:32px;accent-color:var(--color-primary)}.slider-field output{color:var(--color-text);font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right;font-size:12.5px}.number-field input[data-refused],.stepper__input[data-refused]{animation:.9s ease-out field-refused}@keyframes field-refused{0%,60%{border-color:var(--color-danger);color:var(--color-danger);background:var(--color-danger-soft)}to{border-color:var(--color-line-strong);color:var(--color-text-strong);background:var(--color-ghost)}}.app-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.brand{grid-template-columns:auto auto;justify-content:start;align-items:center;gap:12px;min-width:0;display:grid}.brand__mark{display:block}.brand__tile{fill:var(--ink-light)}.brand__tile--dim{fill:color-mix(in srgb, var(--ink-light) 45%, var(--ground-light))}.brand__bolt{fill:none;stroke:#fff}.brand__text{gap:3px;min-width:0;display:grid}.brand__title{color:var(--color-text-strong);letter-spacing:-.01em;margin:0;font-size:16px;font-weight:600;line-height:1.2}.brand__name{white-space:nowrap}.brand__byline{color:var(--color-text-muted);font-family:var(--font-mono);letter-spacing:.04em;white-space:nowrap;margin:0;font-size:11px;display:none}.size-chip{grid-column:1/-1;justify-self:start;display:none}.app-header__tools{gap:10px;display:flex}.clock{text-align:center;justify-items:center;gap:10px;display:grid}.timer{color:var(--color-text-strong);font-family:var(--font-mono);letter-spacing:-.03em;font-variant-numeric:tabular-nums;font-size:44px;font-weight:500;line-height:1}.status-line{max-width:34rem;height:2lh;color:var(--color-text-muted);text-wrap:balance;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:13px;line-height:1.35;display:-webkit-box;overflow:hidden}.status-line:before{content:"";vertical-align:.05em;background:var(--color-line-strong);border-radius:50%;width:7px;height:7px;margin-right:8px;display:inline-block}.game-shell[data-game-state=running] .status-line:before{background:var(--color-live)}.game-stage{flex:1 1 0;min-width:0;min-height:min(64vw,300px);position:relative;container:stage/size}.stage-grid{grid-template:"cube"minmax(0,1fr)/minmax(0,1fr);gap:12px;display:grid;position:absolute;inset:0}.stage-view{min-width:0;min-height:0;position:relative}.stage-view--cube{grid-area:cube}.stage-view--net{grid-area:net}.stage-view--rings{grid-area:rings}.stage-view>canvas{background:var(--color-canvas);touch-action:none;width:100%;height:100%;display:block;position:absolute;inset:0}.game-stage[data-view-mode="3d"] :is(.stage-view--net,.stage-view--rings),.game-stage[data-view-mode="2d"] .stage-view--cube,.game-stage[data-flat-style=net] .stage-view--rings,.game-stage[data-flat-style=rings] .stage-view--net{display:none}.game-stage:not([data-flat-style=both]) :is(.stage-view--net,.stage-view--rings){grid-area:flat}.game-stage[data-view-mode=both] .stage-grid{grid-template:"cube"minmax(0,11fr)"flat"minmax(0,9fr)/minmax(0,1fr)}.game-stage[data-view-mode=both][data-flat-style=both] .stage-grid{grid-template:"cube cube"minmax(0,3fr)"net rings"minmax(0,2fr)/minmax(0,1fr) minmax(0,1fr)}.game-stage[data-view-mode="2d"] .stage-grid{grid-template:"flat"minmax(0,1fr)/minmax(0,1fr)}.game-stage[data-view-mode="2d"][data-flat-style=both] .stage-grid{grid-template:"net"minmax(0,1fr)"rings"minmax(0,1fr)/minmax(0,1fr)}@container stage (aspect-ratio>=6/5){.game-stage[data-view-mode=both] .stage-grid{grid-template:"cube flat"minmax(0,1fr)/minmax(0,1fr) minmax(0,1fr)}.game-stage[data-view-mode=both][data-flat-style=both] .stage-grid{grid-template:"cube net"minmax(0,1fr)"cube rings"minmax(0,1fr)/minmax(0,3fr) minmax(0,2fr)}.game-stage[data-view-mode="2d"][data-flat-style=both] .stage-grid{grid-template:"net rings"minmax(0,1fr)/minmax(0,13fr) minmax(0,11fr)}}@container stage (aspect-ratio>=11/5){.game-stage[data-view-mode=both][data-flat-style=both] .stage-grid{grid-template:"cube net rings"minmax(0,1fr)/minmax(0,1fr) minmax(0,1fr) minmax(0,1fr)}}.stage-view>.axes-badge{width:clamp(44px,11cqmin,84px);height:clamp(44px,11cqmin,84px);box-shadow:0 0 0 1px var(--color-line), 0 8px 20px #0000002e;pointer-events:none;border-radius:50%;inset:12px auto auto 12px}.interaction-hint{border-radius:var(--radius-pill);width:fit-content;color:var(--color-text-muted);background:var(--color-glass);pointer-events:none;align-items:center;gap:8px;margin:0 auto;padding:6px 12px;font-size:12px;display:flex;position:absolute;inset:auto 12px 12px}.view-rail{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.rail-group{gap:4px;display:flex}.view-rail .rail-group:not(.rail-group--modes){border:1px solid var(--color-line);border-radius:var(--radius-pill);background:var(--color-glass);padding:3px}.rail-group--modes{gap:8px;margin-left:auto}.rail-group--modes .rail-button{width:var(--target);border:1px solid var(--color-line);padding:0}.rail-group--diagram{flex-basis:100%;order:1}.rail-group--diagram .rail-button{flex:1}.rail-group--diagram:has(>[hidden]){display:none}.detail-panels{gap:12px;display:grid}.game-shell[data-panels=closed] .detail-panels{display:none}.panel{border-radius:var(--radius-panel);align-content:start;gap:14px;padding:16px;animation:.2s ease-out panel-in;display:grid}@keyframes panel-in{0%{opacity:0;transform:translate(12px)}}.detail-panels .panel{overscroll-behavior:contain;height:min(280px,44dvh);overflow-y:auto}.panel__header{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.panel__title{color:var(--color-text-strong);margin:0;font-size:15px;font-weight:600}.panel__meta{color:var(--color-text-muted);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12px}.panel__section{gap:4px;display:grid}.panel__label,.timeline__label,.settings__label,.records__best-label{color:var(--color-text-muted);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:10.5px}.scramble-text{overscroll-behavior:contain;max-height:6.6em;color:var(--color-text-soft);font-family:var(--font-mono);word-spacing:.2em;overflow-wrap:anywhere;margin:0;font-size:12.5px;line-height:1.6;overflow-y:auto}.scramble-text:empty:after{content:"No scramble yet.";color:var(--color-text-muted)}.move-log__list{overscroll-behavior:contain;grid-template-columns:repeat(auto-fill,minmax(50px,1fr));column-gap:6px;max-height:14.5rem;margin:0;padding:0;list-style:none;display:grid;position:relative;overflow-y:auto}.move-log__list:empty:after{content:"No moves of your own yet.";color:var(--color-text-muted);grid-column:1/-1;padding:6px 0;font-size:12.5px}.records__best{color:var(--color-text-muted);background:var(--color-ghost);border-radius:14px;gap:8px;margin:0;padding:12px 14px;font-size:13px;display:grid}.records__best:has(.records__best-entry){font-size:0}.records__best-entry{justify-content:space-between;align-items:center;gap:12px;display:flex}.records__best-time{color:var(--color-text-strong);font-family:var(--font-mono);letter-spacing:-.02em;font-variant-numeric:tabular-nums;font-size:24px;font-weight:500}.records__list{font-family:var(--font-mono);font-variant-numeric:tabular-nums;margin:0;padding:0;font-size:13px;list-style:none;display:grid}.records__list:empty{display:none}.records__item{border-bottom:1px solid var(--color-line);min-height:36px;color:var(--color-text-muted);align-items:center;gap:12px;display:flex}.records__item:last-child{border-bottom:none}.records__time{color:var(--color-text);flex:1;align-items:center;gap:8px;display:flex}.records__moves{text-align:right;min-width:76px}.records__item[data-best=true] .records__time{color:var(--color-text-strong)}.records__item[data-best=true] .records__time:after{content:"Best";content:"Best" / "";border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);height:18px;color:var(--color-text-soft);letter-spacing:.06em;text-transform:uppercase;align-items:center;padding:0 6px;font-size:10px;display:inline-flex}.turn-keys{color:var(--color-text-muted);flex-wrap:wrap;align-items:center;gap:5px;margin:0;font-size:12px;display:flex}.turn-keys kbd{border:1px solid var(--color-line-strong);min-width:22px;height:22px;color:var(--color-text);background:var(--color-ghost);border-radius:6px;justify-content:center;align-items:center;padding:0 5px;font-size:11px;display:inline-flex}.turn-depth{align-items:center;gap:8px;display:flex}.turn-depth__label{color:var(--color-text-soft);flex:1;font-size:13px}.stepper{border-radius:var(--radius-control);outline:1px solid var(--color-line-strong);outline-offset:-1px;align-items:center;display:flex}.stepper__button{width:var(--target);height:var(--target);border-radius:var(--radius-control);color:var(--color-text-soft);cursor:pointer;background:0 0;border:none;place-items:center;padding:0;display:grid}.stepper__button:hover{background:var(--color-hover)}.stepper__input{width:var(--target);min-height:var(--target);appearance:textfield;background:0 0;border:none;padding:0}.stepper__input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.stepper__input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.stepper:has(.stepper__input:disabled){opacity:.45}.stepper:has(.stepper__input:disabled) .stepper__button{pointer-events:none}.move-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;display:grid}.paint-bar{border-radius:var(--radius-panel);align-self:center;gap:10px;width:min(640px,100%);padding:12px;display:grid}.game-shell:has(#paint-bar:not([hidden])) .timeline{display:none}.paint-bar__swatches{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;display:grid}.swatch{border:1px solid var(--color-line-strong);border-radius:var(--radius-control);min-height:48px;color:inherit;text-align:left;cursor:pointer;background:0 0;grid-template-rows:auto auto;grid-template-columns:auto minmax(0,1fr);align-items:center;column-gap:8px;padding:6px 10px;font-size:12.5px;display:grid}.swatch[aria-pressed=true]{border-color:var(--color-text-muted);background:var(--color-pressed)}.swatch__chip{border-radius:5px;grid-row:1/-1;width:18px;height:18px;box-shadow:inset 0 0 0 1px #00000040}[data-sticker-chip="0"]{background:var(--sticker-r)}[data-sticker-chip="1"]{background:var(--sticker-l)}[data-sticker-chip="2"]{background:var(--sticker-u)}[data-sticker-chip="3"]{background:var(--sticker-d)}[data-sticker-chip="4"]{background:var(--sticker-f)}[data-sticker-chip="5"]{background:var(--sticker-b)}.swatch__name{color:var(--color-text);font-weight:600}.swatch__tally{color:var(--color-text-muted);font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:11.5px}.swatch__tally[data-short=true]{color:var(--color-danger);font-weight:600}.paint-bar__actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.paint-bar__note:empty{display:none}.paint-bar__note{border:1px solid var(--color-danger-line);border-radius:var(--radius-control);color:var(--color-danger);background:var(--color-danger-soft);text-align:center;margin:0;padding:8px 12px;font-size:13px}.timeline{align-self:center;gap:4px;width:min(600px,100%);display:grid}.timeline__moves{height:var(--target);scrollbar-width:none;align-items:center;gap:6px;margin:0;padding:0 56px;list-style:none;display:flex;position:relative;overflow-x:auto;-webkit-mask-image:linear-gradient(90deg,#0000,#000 56px calc(100% - 56px),#0000);mask-image:linear-gradient(90deg,#0000,#000 56px calc(100% - 56px),#0000)}.timeline__moves::-webkit-scrollbar{display:none}.timeline__moves>:first-child{margin-left:auto}.timeline__moves>:last-child{margin-right:auto}.timeline__moves .move-chip{width:auto}.timeline__moves:empty:after{content:"Your moves will line up here.";color:var(--color-text-muted);margin:0 auto;font-size:12.5px}.timeline__bar{align-items:center;gap:12px;display:flex}.timeline__label{flex-shrink:0}.timeline__label--end{text-align:right;min-width:56px}.timeline__track{flex:1;height:18px;position:relative}.timeline__track:before,.timeline__scramble,.timeline__done{border-radius:2px;height:4px;position:absolute;top:7px}.timeline__track:before{content:"";background:var(--color-track);left:0;right:0}.timeline__scramble{width:var(--scramble,0%);background:repeating-linear-gradient(90deg, var(--color-track-scramble) 0 5px, transparent 5px 8px);left:0}.timeline__done{left:var(--scramble,0%);width:max(0%, calc(var(--cursor,0%) - var(--scramble,0%)));background:var(--color-track-done);transition:width .2s}.timeline__head{top:3px;left:var(--cursor,0%);background:var(--color-primary);width:12px;height:12px;box-shadow:0 0 0 3px var(--color-page);border-radius:50%;transition:left .2s;position:absolute;transform:translate(-50%)}.solver-note{max-width:34rem;color:var(--color-text-muted);text-align:center;text-wrap:balance;margin:0;font-size:12.5px}.action-dock{border-radius:var(--radius-pill);align-self:center;align-items:center;gap:4px;width:min(560px,100%);padding:6px;display:flex}.details-rail{border-radius:var(--radius-pill);grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:3px;display:grid}.details-rail .rail-button{gap:7px;width:100%;padding:0}.settings-backdrop,.command-backdrop{background:var(--color-scrim);position:fixed;inset:0}.settings-backdrop{z-index:var(--z-drawer-backdrop)}.settings{z-index:var(--z-drawer);max-height:85dvh;padding:20px 20px max(20px, env(safe-area-inset-bottom));overscroll-behavior:contain;border:1px solid var(--color-line-strong);background:var(--color-dialog);box-shadow:var(--shadow-dialog);border-bottom:none;border-radius:24px 24px 0 0;align-content:start;gap:16px;animation:.18s ease-out settings-up;display:grid;position:fixed;inset:auto 0 0;overflow-y:auto}@keyframes settings-up{0%{opacity:0;transform:translateY(2rem)}}@keyframes settings-in{0%{opacity:0;transform:translate(1.5rem)}}.settings__header{justify-content:space-between;align-items:center;gap:8px;display:flex}.settings__title{color:var(--color-text-strong);margin:0;font-size:17px;font-weight:600}.settings__group{border-bottom:1px solid var(--color-line);gap:10px;padding-bottom:16px;display:grid}.settings__group:last-child{border-bottom:none;padding-bottom:0}.settings__group--danger{justify-items:start}.settings__row{flex-wrap:wrap;gap:8px;display:flex}.settings__sublabel{color:var(--color-text-soft);margin:4px 0 0;font-size:12.5px;font-weight:600}.lighting-values{color:var(--color-text-muted);font-family:var(--font-mono);overflow-wrap:anywhere;-webkit-user-select:all;user-select:all;font-size:11px;display:block}.share-card{top:calc(var(--shell-top) + var(--target) + 12px);right:max(16px, env(safe-area-inset-right));left:max(16px, env(safe-area-inset-left));z-index:var(--z-card);border:1px solid var(--color-line-strong);background:var(--color-dialog);box-shadow:var(--shadow-dialog);border-radius:18px;gap:10px;padding:14px 14px 14px 16px;animation:.18s ease-out share-card-in;display:grid;position:fixed}@keyframes share-card-in{0%{opacity:0;transform:translateY(-6px)}}.share-card__head{align-items:center;gap:10px;display:flex}.share-card__icon{background:var(--color-ghost);border-radius:50%;flex-shrink:0;place-items:center;width:26px;height:26px;display:grid}.share-card__icon--copied{color:var(--color-live)}.share-card__icon--link{color:var(--color-text-soft)}.share-card[data-copied=true] .share-card__icon--link,.share-card[data-copied=false] .share-card__icon--copied{display:none}.share-card__title{color:var(--color-text-strong);flex:1;margin:0;font-size:14.5px;font-weight:600}.share-card__close{width:var(--target);height:var(--target);color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;place-items:center;margin:-10px -8px -10px 0;padding:0;display:grid}.share-card__close:hover{color:var(--color-text);background:var(--color-hover)}.share-card__note{color:var(--color-text-muted);margin:0;font-size:13px;line-height:1.4}.share-card__row{gap:8px;display:flex}.share-card__link{min-width:0;height:var(--target);border:1px solid var(--color-line-strong);border-radius:var(--radius-control);color:var(--color-text);background:var(--color-ghost);font-family:var(--font-mono);text-overflow:ellipsis;flex:1;padding:0 12px;font-size:12.5px}.command-backdrop{z-index:var(--z-menu-backdrop)}.command-palette{z-index:var(--z-menu);border:1px solid var(--color-line-strong);border-radius:var(--radius-panel);background:var(--color-dialog);width:min(640px,100% - 32px);max-height:calc(100dvh - 2*min(132px,10dvh));box-shadow:var(--shadow-dialog);flex-direction:column;animation:.14s ease-out command-in;display:flex;position:fixed;top:min(132px,10dvh);left:50%;overflow:hidden;transform:translate(-50%)}@keyframes command-in{0%{opacity:0;transform:translate(-50%,-8px)}}.command-palette__field{border-bottom:1px solid var(--color-line);height:60px;color:var(--color-text-muted);flex-shrink:0;align-items:center;gap:12px;padding:0 14px 0 18px;display:flex}.command-palette__input{min-width:0;height:var(--target);color:var(--color-text-strong);font-family:var(--font-mono);background:0 0;border:none;outline:none;flex:1;padding:0;font-size:17px}.command-palette__input::placeholder{color:var(--color-text-muted);font-family:var(--font-sans);font-size:15px}.command-palette__esc{border:1px solid var(--color-line-strong);height:24px;color:var(--color-text-muted);border-radius:6px;align-items:center;padding:0 8px;font-size:11px;display:inline-flex}.command-palette__message{color:var(--color-danger);margin:0;padding:10px 18px 0;font-size:13px}.command-palette__list{overscroll-behavior:contain;flex:1;padding:8px;overflow-y:auto}.command-group+.command-group{margin-top:6px}.command-group__label{color:var(--color-text-muted);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;padding:8px 10px 4px;font-size:10.5px}.command{min-height:var(--target);border-radius:var(--radius-control);color:var(--color-text);cursor:pointer;align-items:center;gap:12px;padding:0 12px;font-size:14px;display:flex}.command[aria-selected=true]{color:var(--color-text-strong);background:var(--color-pressed)}.command__icon{width:16px;color:var(--color-text-muted);place-items:center;display:grid}.command[aria-selected=true] .command__icon{color:var(--color-text-strong)}.command__moves{min-width:0;font-family:var(--font-mono);text-overflow:ellipsis;white-space:nowrap;font-weight:500;overflow:hidden}.command__note{color:var(--color-text-muted);flex-shrink:0;margin-left:auto;font-size:12px}.command-palette__footer{border-top:1px solid var(--color-line);height:40px;color:var(--color-text-muted);font-family:var(--font-mono);flex-shrink:0;align-items:center;gap:18px;margin:0;padding:0 18px;font-size:11px;display:flex}@media (width>=560px){.paint-bar__swatches{grid-template-columns:repeat(6,minmax(0,1fr))}.swatch{text-align:center;grid-template-rows:auto auto auto;grid-template-columns:auto;justify-items:center;row-gap:4px;padding:8px 4px}.swatch__chip{grid-row:auto}}@media (width>=1024px){.game-shell{--rail-zone:96px;--panel-zone:0px;--shell-top:24px;grid-template-columns:var(--rail-zone) minmax(0, 1fr) var(--panel-zone) var(--rail-zone);padding:var(--shell-top) 0 20px;grid-template-rows:auto minmax(0,1fr) auto auto auto;gap:0;transition:grid-template-columns .26s;display:grid;overflow:hidden}.game-shell[data-panels=open]{--panel-zone:352px}.app-header{pointer-events:none;grid-area:1/1/auto/-1;align-items:flex-start;padding:0 32px 0 36px}.app-header>*{pointer-events:auto}.brand__byline{display:block}.size-chip,.command-trigger__key{display:inline-flex}.pill-button__label{display:inline}.pill-button:not(.pill-button--icon,.command-trigger){width:auto;padding:0 18px 0 14px}.command-trigger{justify-content:flex-start;width:auto;padding:0 8px 0 14px}.clock{pointer-events:none;grid-area:1/2;align-self:start}.timer{font-size:clamp(40px,4vw,56px)}.game-stage{grid-area:2/2;min-height:200px;margin-top:12px}.paint-bar,.timeline{grid-area:3/2;justify-self:center;margin-top:8px}.solver-note{grid-area:4/2;justify-self:center;margin-top:8px}.action-dock{grid-area:5/2;justify-self:center;gap:6px;margin-top:14px;padding:9px}.dock-button{height:52px}.dock-button--side{width:auto;padding:0 16px 0 14px}.dock-button--round{width:52px}.view-rail,.details-rail{scrollbar-width:none;border:1px solid var(--color-line);background:var(--color-glass);width:68px;max-height:100%;-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border-radius:24px;flex-flow:column;grid-row:2/-1;place-self:center;gap:0;padding:8px;display:flex;overflow-y:auto}.view-rail{grid-column:1;align-items:stretch}.details-rail{grid-column:4;gap:4px}.view-rail .rail-group{flex-direction:column;flex-basis:auto;gap:4px;margin:0}.view-rail .rail-group:not(.rail-group--modes){background:0 0;border:none;border-radius:0;padding:0}.view-rail .rail-group+.rail-group{border-top:1px solid var(--color-line);margin-top:6px;padding-top:6px}.rail-group--diagram{order:0}.view-rail .rail-button,.details-rail .rail-button{border:none;border-radius:16px;flex-direction:column;gap:4px;width:100%;min-height:52px;padding:0;font-size:10.5px}.view-rail .rail-button--text{min-height:var(--target);border-radius:var(--radius-control);font-size:11.5px}.dock-button__label,.rail-group--modes .rail-button span{clip-path:none;width:auto;height:auto;position:static;overflow:visible}.detail-panels{scrollbar-width:thin;grid-area:2/3/-1;align-content:center;place-self:center end;width:340px;max-height:100%;margin-right:12px;overflow-y:auto}.detail-panels .panel{height:auto;overflow:visible}.move-log__list{grid-template-columns:repeat(6,minmax(0,1fr))}.share-card{width:380px;left:auto;right:32px}.settings{border:1px solid var(--color-line-strong);border-radius:24px;width:min(380px,100% - 24px);max-height:none;animation-name:settings-in;inset:12px 12px 12px auto}}@media (width>=1280px){.command-trigger{width:264px}.command-trigger__label{display:block}}@media (width>=1024px) and (height<=760px){.game-shell{--shell-top:16px}.brand__byline{display:none}.timer{font-size:36px}.clock{gap:6px}.view-rail .rail-button,.details-rail .rail-button{min-height:46px}.view-rail .rail-button--text{min-height:var(--target)}.action-dock{margin-top:10px;padding:6px}.dock-button{height:48px}.dock-button--round{width:48px}}#app[data-state=loading] .game-stage canvas,#app[data-state=loading] .detail-panels,#app[data-state=loading] .details-rail,#app[data-state=loading] .timeline{visibility:hidden}#app[data-state=unsupported] .share-card,#app[data-state=error] .share-card,#app[data-state=unsupported] .game-stage,#app[data-state=unsupported] .view-rail,#app[data-state=unsupported] .detail-panels,#app[data-state=unsupported] .paint-bar,#app[data-state=unsupported] .timeline,#app[data-state=unsupported] .solver-note,#app[data-state=unsupported] .action-dock,#app[data-state=unsupported] .details-rail,#app[data-state=error] .game-stage,#app[data-state=error] .view-rail,#app[data-state=error] .detail-panels,#app[data-state=error] .paint-bar,#app[data-state=error] .timeline,#app[data-state=error] .solver-note,#app[data-state=error] .action-dock,#app[data-state=error] .details-rail,#app[data-state=unsupported] #timer,#app[data-state=unsupported] #share,#app[data-state=unsupported] #command-trigger,#app[data-state=unsupported] #cube-size-chip,#app[data-state=error] #timer,#app[data-state=error] #share,#app[data-state=error] #command-trigger,#app[data-state=error] #cube-size-chip{display:none}#app[data-state=unsupported] .status-line,#app[data-state=error] .status-line{border:1px solid var(--color-danger-line);border-radius:var(--radius-panel);height:auto;color:var(--color-danger);background:var(--color-danger-soft);padding:16px;display:block}#app[data-state=unsupported] .status-line:before,#app[data-state=error] .status-line:before{display:none}@media (prefers-reduced-motion:reduce){.game-shell,.panel,.settings,.share-card,.command-palette,.timeline__done,.timeline__head,.pill-button,.soft-button,.rail-button,.dock-button{transition:none;animation:none}.number-field input[data-refused],.stepper__input[data-refused]{animation:.9s step-end field-refused-still}@keyframes field-refused-still{0%,60%{border-color:var(--color-danger);color:var(--color-danger);background:var(--color-danger-soft)}to{border-color:var(--color-line-strong)}}}