:root{--space-1: .4rem;--space-2: .8rem;--space-3: 1.2rem;--space-4: 1.6rem;--space-5: 2.4rem;--space-6: 3.2rem;--space-8: 4.8rem;--space-10: 6.4rem;--space-12: 9.6rem;--text-xs: 1.2rem;--text-sm: 1.35rem;--text-base: 1.6rem;--text-lg: clamp(1.8rem, 1.6rem + .5vw, 2rem);--text-xl: clamp(2rem, 1.7rem + .9vw, 2.5rem);--text-2xl: clamp(2.4rem, 2rem + 1.4vw, 3.2rem);--text-3xl: clamp(3rem, 2.4rem + 2vw, 4rem);--shadow-1: 0 1px 3px rgba(0, 0, 0, .12);--shadow-2: 0 4px 14px rgba(0, 0, 0, .16);--shadow-3: 0 12px 34px rgba(0, 0, 0, .22)}:root{--duration-fast: .15s;--duration-base: .3s;--duration-slow: .6s;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1)}.mb-8{margin-bottom:8rem!important}.load-hidden{visibility:hidden}.sr .sr__child{transition-property:opacity,transform,filter,clip-path;transition-timing-function:cubic-bezier(.16,1,.3,1)}.sr--fade-up{opacity:0;transform:translateY(30px);transition:opacity .5s ease-out,transform .5s ease-out}.sr--fade-up.sr-visible{opacity:1;transform:translateY(0)}.sr--fade-up .sr__child{opacity:0;transform:translateY(30px);transition-duration:.5s}.sr--fade-up.sr-visible .sr__child{opacity:1;transform:translateY(0)}.sr--clip{clip-path:inset(100% 0 0 0);transition:clip-path .6s cubic-bezier(.16,1,.3,1)}.sr--clip.sr-visible{clip-path:inset(0 0 0 0)}.sr--clip .sr__child{clip-path:inset(100% 0 0 0);transition-duration:.6s}.sr--clip.sr-visible .sr__child{clip-path:inset(0 0 0 0)}.sr--blur{opacity:0;filter:blur(12px);transition:opacity .5s ease-out,filter .5s ease-out}.sr--blur.sr-visible{opacity:1;filter:blur(0)}.sr--blur .sr__child{opacity:0;filter:blur(12px);transition-duration:.5s}.sr--blur.sr-visible .sr__child{opacity:1;filter:blur(0)}.sr--scale{opacity:0;transform:scale(.92);transition:opacity .45s ease-out,transform .45s cubic-bezier(.34,1.56,.64,1)}.sr--scale.sr-visible{opacity:1;transform:scale(1)}.sr--scale .sr__child{opacity:0;transform:scale(.92);transition-duration:.45s;transition-timing-function:ease-out,cubic-bezier(.34,1.56,.64,1)}.sr--scale.sr-visible .sr__child{opacity:1;transform:scale(1)}.sr--slide-right{opacity:0;transform:translate(-40px);transition:opacity .5s ease-out,transform .5s ease-out}.sr--slide-right.sr-visible{opacity:1;transform:translate(0)}.sr--slide-right .sr__child{opacity:0;transform:translate(-40px);transition-duration:.5s}.sr--slide-right.sr-visible .sr__child{opacity:1;transform:translate(0)}@media(prefers-reduced-motion:reduce){.sr--fade-up,.sr--clip,.sr--blur,.sr--scale,.sr--slide-right,.sr--slide-left,.sr .sr__child{opacity:1!important;transform:none!important;filter:none!important;clip-path:none!important;transition:none!important}}.sr--slide-left{opacity:0;transform:translate(40px);transition:opacity .5s ease-out,transform .5s ease-out}.sr--slide-left.sr-visible{opacity:1;transform:translate(0)}.sr--slide-left .sr__child{opacity:0;transform:translate(40px);transition-duration:.5s}.sr--slide-left.sr-visible .sr__child{opacity:1;transform:translate(0)}:root{--sdk-line: rgba(0, 0, 0, .14);--sdk-line-strong: rgba(0, 0, 0, .42);--sdk-board-bg: #fff;--sdk-entry: #01565b;--sdk-peer: rgba(2, 170, 176, .1);--sdk-same: rgba(2, 170, 176, .2);--sdk-cursor: rgba(2, 170, 176, .3);--sdk-danger: #a5281b;--sdk-danger-bg: rgba(192, 57, 43, .14);--sdk-hint-line: rgba(180, 132, 8, .55);--sdk-hint-bg: rgba(241, 196, 15, .18);--sdk-skeleton: rgba(0, 0, 0, .07);--sdk-cage-line: rgba(0, 0, 0, .55);--sdk-cage-sum: #3b3663}[data-theme=dark]{--sdk-line: rgba(255, 255, 255, .12);--sdk-line-strong: rgba(255, 255, 255, .34);--sdk-board-bg: #1a1a30;--sdk-entry: #9df7f0;--sdk-peer: rgba(0, 217, 206, .1);--sdk-same: rgba(0, 217, 206, .22);--sdk-cursor: rgba(0, 217, 206, .3);--sdk-danger: #ff7a6b;--sdk-danger-bg: rgba(231, 76, 60, .26);--sdk-hint-line: rgba(241, 196, 15, .5);--sdk-hint-bg: rgba(241, 196, 15, .16);--sdk-skeleton: rgba(255, 255, 255, .08);--sdk-cage-line: rgba(255, 255, 255, .5);--sdk-cage-sum: #c9c7e0}.sdk-setup{display:flex;flex-direction:column;gap:var(--space-2);align-items:center;margin-bottom:var(--space-3)}.sdk-modes{display:flex;gap:var(--space-2);justify-content:center;flex-wrap:wrap}.sdk-mode{min-height:36px;padding:var(--space-2) var(--space-3);border-radius:999px;border:1px solid var(--card-border);background:transparent;color:inherit;font-size:var(--text-sm);font-weight:600;cursor:pointer}@media(prefers-reduced-motion:no-preference){.sdk-mode{transition:background .15s cubic-bezier(.16,1,.3,1),border-color .15s cubic-bezier(.16,1,.3,1),color .15s cubic-bezier(.16,1,.3,1)}}.sdk-mode:hover:not(:disabled){background:#02aab014;border-color:#02aab059;color:var(--color-primary-text)}.sdk-mode--on{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.sdk-mode:disabled{opacity:.45;cursor:default}.sdk-tiers{display:flex;gap:var(--space-1);justify-content:center;flex-wrap:wrap;align-items:center}.sdk-tiers__label{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);margin-right:var(--space-1)}.sdk-tier{min-height:36px;padding:var(--space-1) var(--space-3);border-radius:8px;border:1px solid var(--card-border);background:transparent;color:inherit;font-size:var(--text-sm);font-weight:600;cursor:pointer}@media(prefers-reduced-motion:no-preference){.sdk-tier{transition:background .15s cubic-bezier(.16,1,.3,1),border-color .15s cubic-bezier(.16,1,.3,1)}}.sdk-tier:hover:not(:disabled){background:#02aab014;border-color:#02aab059}.sdk-tier--on{background:#02aab029;border-color:var(--color-primary)}.sdk-tier:disabled{opacity:.4;cursor:default}.sdk-daily-tier{font-size:var(--text-sm);color:var(--text-secondary)}.sdk-daily-tier strong{color:var(--text-primary)}.sdk-board{width:100%;max-width:min(94vw,520px);margin:0 auto;aspect-ratio:1;display:flex;flex-direction:column;border:2px solid var(--sdk-line-strong);border-radius:8px;overflow:hidden;background:var(--sdk-board-bg);user-select:none;touch-action:manipulation}.sdk-board__row{display:flex;flex:1 1 0;min-height:0}.sdk-cell{flex:1 1 0;min-width:0;position:relative;display:flex;align-items:center;justify-content:center;padding:0;border:0;border-right:1px solid var(--sdk-line);border-bottom:1px solid var(--sdk-line);background:transparent;color:var(--text-primary);cursor:pointer;font-variant-numeric:tabular-nums;line-height:1}@media(prefers-reduced-motion:no-preference){.sdk-cell{transition:background-color .15s cubic-bezier(.16,1,.3,1)}}.sdk-cell:last-child{border-right:0}.sdk-cell--box-right{border-right:2px solid var(--sdk-line-strong)}.sdk-cell--box-bottom{border-bottom:2px solid var(--sdk-line-strong)}.sdk-cell__value{font-size:clamp(1.6rem,4.4vw,2.4rem);font-weight:500}.sdk-cell--given .sdk-cell__value{font-weight:800}.sdk-cell--entry .sdk-cell__value{color:var(--sdk-entry)}.sdk-cell--peer{background:var(--sdk-peer)}.sdk-cell--same{background:var(--sdk-same)}.sdk-cell--cursor{background:var(--sdk-cursor);outline:2px solid var(--color-primary);outline-offset:-2px;z-index:1}.sdk-cell--conflict{background:var(--sdk-danger-bg)}.sdk-cell--conflict .sdk-cell__value{color:var(--sdk-danger);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}.sdk-cell--wrong{background:var(--sdk-danger-bg)}.sdk-cell--wrong .sdk-cell__value{color:var(--sdk-danger);text-decoration:line-through;text-decoration-thickness:2px}.sdk-cell--hint{background:var(--sdk-hint-bg);box-shadow:inset 0 0 0 2px var(--sdk-hint-line)}.sdk-cell:focus-visible{outline:2px solid var(--color-primary);outline-offset:-2px;z-index:2}.sdk-cell:disabled{cursor:default}.sdk-cell .sdk-cage{position:absolute;inset:3px;pointer-events:none}.sdk-cell .sdk-cage--t{border-top:1px dashed var(--sdk-cage-line)}.sdk-cell .sdk-cage--r{border-right:1px dashed var(--sdk-cage-line)}.sdk-cell .sdk-cage--b{border-bottom:1px dashed var(--sdk-cage-line)}.sdk-cell .sdk-cage--l{border-left:1px dashed var(--sdk-cage-line)}.sdk-cell .sdk-cage__sum{position:absolute;top:3px;left:4px;font-size:clamp(.7rem,1.7vw,1.05rem);font-weight:700;line-height:1;color:var(--sdk-cage-sum);pointer-events:none}.sdk-cell--caged .sdk-cell__value{transform:translateY(.12em)}.sdk-cell__notes{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:100%;height:100%;padding:2px}.sdk-cell__note{display:flex;align-items:center;justify-content:center;font-size:clamp(.7rem,1.5vw,1rem);color:var(--text-secondary)}.sdk-cell__note--on{font-weight:700}.sdk-board--skeleton{display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr);gap:1px;padding:1px}.sdk-skeleton-cell{background:var(--sdk-skeleton)}@media(prefers-reduced-motion:no-preference){.sdk-skeleton-cell{animation:sdk-pulse 1.4s ease-in-out infinite}}@keyframes sdk-pulse{0%,to{opacity:.4}50%{opacity:.85}}.sdk-pad{display:grid;grid-template-columns:repeat(9,1fr);gap:var(--space-1);max-width:min(94vw,520px);margin:var(--space-3) auto 0}@media(max-width:560px){.sdk-pad{grid-template-columns:repeat(3,1fr);max-width:280px;gap:var(--space-2)}}.sdk-pad__key{position:relative;aspect-ratio:1;min-height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--card-border);border-radius:8px;background:var(--card-bg);color:var(--text-primary);cursor:pointer}@media(prefers-reduced-motion:no-preference){.sdk-pad__key{transition:border-color .15s cubic-bezier(.16,1,.3,1),opacity .15s cubic-bezier(.16,1,.3,1)}}.sdk-pad__key:hover:not(:disabled){border-color:var(--color-primary)}.sdk-pad__key:disabled{opacity:.45;cursor:default}.sdk-pad__key--done{opacity:.35}.sdk-pad__digit{font-size:var(--text-lg);font-weight:700;font-variant-numeric:tabular-nums}.sdk-pad__count{font-size:var(--text-xs);color:var(--text-secondary);min-height:1em}.sdk-actions{display:flex;flex-wrap:wrap;gap:var(--space-2);justify-content:center;max-width:min(94vw,520px);margin:var(--space-3) auto 0}.sdk-action{min-height:40px;padding:var(--space-2) var(--space-3);border-radius:8px;border:1px solid var(--card-border);background:transparent;color:var(--text-primary);font-size:var(--text-sm);font-weight:600;cursor:pointer}@media(prefers-reduced-motion:no-preference){.sdk-action{transition:border-color .15s cubic-bezier(.16,1,.3,1),background .15s cubic-bezier(.16,1,.3,1)}}.sdk-action:hover:not(:disabled){background:#02aab014;border-color:#02aab059}.sdk-action:disabled{opacity:.4;cursor:default}.sdk-action--on{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.sdk-action--hint{border-color:var(--sdk-hint-line)}.sdk-action__cost{display:block;font-size:var(--text-xs);font-weight:500;color:var(--text-secondary)}.sdk-rail{display:flex;flex-direction:column;gap:var(--space-3)}.sdk-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-2)}.sdk-stat{display:flex;flex-direction:column;gap:2px;padding:var(--space-2) var(--space-3);border:1px solid var(--card-border);border-radius:8px;background:var(--card-bg)}.sdk-stat__label{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary)}.sdk-stat__value{font-size:var(--text-lg);font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-primary)}.sdk-stat__of{font-size:var(--text-xs);font-weight:500;color:var(--text-secondary)}.sdk-stat__addendum{font-size:var(--text-xs);font-weight:600;color:var(--sdk-danger)}.sdk-stat--spent .sdk-stat__value{color:var(--sdk-danger)}.sdk-hint{padding:var(--space-3);border:1px solid var(--sdk-hint-line);border-radius:8px;background:var(--sdk-hint-bg)}.sdk-hint__label{display:block;font-size:var(--text-sm);margin-bottom:var(--space-1);color:var(--text-primary)}.sdk-hint__text{margin:0;font-size:var(--text-sm);line-height:1.5;color:var(--text-primary)}.sdk-techniques{padding:var(--space-3);border:1px solid var(--card-border);border-radius:8px;background:var(--card-bg)}.sdk-techniques__title{margin:0 0 var(--space-2);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary)}.sdk-techniques__list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:var(--space-1)}.sdk-techniques__item{display:flex;justify-content:space-between;gap:var(--space-2);font-size:var(--text-sm);color:var(--text-primary)}.sdk-techniques__count{color:var(--text-secondary);font-variant-numeric:tabular-nums}.sdk-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.sdkv{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,320px);gap:var(--space-5);align-items:start}@media(max-width:900px){.sdkv{grid-template-columns:minmax(0,1fr)}}.sdkv__main{min-width:0}.sdkv__hint{margin:var(--space-3) 0 var(--space-2);text-align:center;font-size:var(--text-sm);color:var(--text-secondary)}.sdkv__presets{display:flex;gap:var(--space-2);justify-content:center;flex-wrap:wrap;margin-bottom:var(--space-3)}.sdkv__paste{display:block;max-width:min(94vw,520px);margin:0 auto var(--space-2)}.sdkv__paste input{width:100%;min-height:44px;padding:var(--space-2) var(--space-3);border:1px solid var(--card-border);border-radius:8px;background:var(--card-bg);color:var(--text-primary);font-family:var(--font-mono, ui-monospace, monospace);font-size:var(--text-sm)}.sdkv__paste input:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.sdkv__paste-label{display:block;margin-bottom:var(--space-1);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary)}.sdkv__error{max-width:min(94vw,520px);margin:0 auto var(--space-2);font-size:var(--text-sm);color:var(--sdk-danger)}.sdkv__solve{display:block;margin:var(--space-3) auto 0;min-height:48px;padding:var(--space-2) var(--space-6);font-size:var(--text-base)}.sdkv__transport{display:flex;gap:var(--space-1);justify-content:center;flex-wrap:wrap;margin-top:var(--space-3)}.sdkv__scrub{display:block;max-width:min(94vw,520px);margin:var(--space-3) auto 0}.sdkv__scrub input{width:100%;accent-color:var(--color-primary)}.sdkv__step{max-width:min(94vw,520px);margin:var(--space-2) auto var(--space-3);min-height:3em;font-size:var(--text-sm);line-height:1.5;color:var(--text-primary);text-align:center}.sdkv__step-n{display:inline-block;margin-right:var(--space-2);padding:2px var(--space-2);border-radius:999px;background:var(--card-bg);border:1px solid var(--card-border);font-variant-numeric:tabular-nums;font-size:var(--text-xs);color:var(--text-secondary)}.sdkv__readout{padding:var(--space-4);border:1px solid var(--card-border);border-radius:12px;background:var(--card-bg)}.sdkv__readout-title{margin:0 0 var(--space-3);font-size:var(--text-base)}.sdkv__facts{margin:0;display:grid;gap:var(--space-2)}.sdkv__facts div{display:flex;justify-content:space-between;gap:var(--space-2);align-items:baseline}.sdkv__facts dt{font-size:var(--text-sm);color:var(--text-secondary)}.sdkv__facts dd{margin:0;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-primary)}.sdkv__note{margin:var(--space-3) 0 0;padding:var(--space-2) var(--space-3);border-left:3px solid var(--color-primary);font-size:var(--text-sm);line-height:1.5;color:var(--text-secondary)}.sdkv__grid-string{margin:var(--space-4) 0 0}.sdkv__grid-string code{display:block;word-break:break-all;font-size:var(--text-xs);line-height:1.6;color:var(--text-secondary)}