:root{color-scheme:light;--ink:#10274f;--blue:#214bb5;--paper:#f6f8f0;--coral:#f76b4e;--muted:#536987;--line:#c3d0df;font-family:"Avenir Next",Avenir,"Segoe UI",sans-serif;background:#e4edf2;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}a{color:inherit;text-underline-offset:4px}button:focus-visible,a:focus-visible,summary:focus-visible,.maze-stage:focus-visible{outline:3px solid #e04c26;outline-offset:5px}button:disabled{cursor:default;opacity:.45}.skip{position:fixed;top:10px;left:10px;transform:translateY(-200%);background:white;padding:12px;z-index:20}.skip:focus{transform:none}.site-header,main,footer{max-width:1080px;margin:auto}.site-header{display:flex;justify-content:space-between;align-items:center;padding:25px 32px}.brand{font-size:25px;font-weight:750;letter-spacing:-1px;text-decoration:none;display:flex;align-items:center;gap:8px}.brand svg{width:32px;height:32px;fill:none;stroke:var(--blue);stroke-width:3;stroke-linejoin:round}.site-header>a:last-child{font-size:14px;min-height:44px;display:flex;align-items:center;gap:12px}main{padding:21px 32px 0}.heading{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}h1{font-size:clamp(38px,5.4vw,60px);letter-spacing:-2.5px;line-height:1;margin:0 0 14px;font-weight:650}.heading p{margin:0;color:var(--muted);font-size:15px;line-height:1.6}.heading strong{color:var(--ink);font-weight:600}.mode{display:flex;border-bottom:1px solid #9aaec5;gap:12px;flex-shrink:0}.mode button{border:0;border-bottom:3px solid transparent;background:none;padding:12px 7px;min-height:47px;font-size:14px;color:var(--muted)}.mode button[aria-pressed=true]{color:var(--blue);border-bottom-color:var(--blue);font-weight:700}.play-layout{display:grid;grid-template-columns:minmax(0,1fr) 242px;gap:38px;align-items:start}.map-section{min-width:0}.map-bar{background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:15px 20px;font-size:13px;border-radius:9px 9px 0 0;font-variant-numeric:tabular-nums}.map-bar strong{font-size:18px;font-weight:650;margin-right:3px}.map-frame{background:var(--paper);padding:23px;border:1px solid #acbdce;border-top:0;box-shadow:0 5px 0 #cad6df;position:relative}.maze-stage{width:100%;aspect-ratio:1;touch-action:manipulation;outline-offset:8px;border-radius:2px;position:relative}.maze-stage svg{display:block;width:100%;height:100%;overflow:visible}.maze-floor{fill:var(--paper)}.maze-wall{fill:none;stroke:var(--blue);stroke-width:5;stroke-linecap:square;stroke-linejoin:miter}.walked{fill:none;stroke:#b2cbd4;stroke-width:10;stroke-linejoin:round;stroke-linecap:round}.hint-cell{fill:#ffe7a0;stroke:#98700c;stroke-width:2;stroke-dasharray:7 6}.start-symbol{fill:none;stroke:#31556d;stroke-width:4}.finish-symbol{stroke:#10274f;stroke-width:4;fill:none;stroke-linejoin:round}.player-ring{fill:var(--coral);stroke:var(--paper);stroke-width:5}.player-core{fill:#722510}.player{transform-box:fill-box;transform-origin:center;animation:arrive .17s ease-out}.blocked .player{animation:bump .2s ease-in-out}.map-legend{display:flex;justify-content:center;gap:30px;margin-top:22px;font-size:12px;color:var(--muted)}.map-legend span{display:flex;gap:6px;align-items:center}.map-legend i{font-style:normal;font-size:16px}.you-mark{color:#ac3923}.control-rail{padding-top:7px}.size-picker{padding:0;border:0;margin:0 0 25px;min-width:0}.size-picker legend{font-size:13px;margin-bottom:12px;color:var(--muted)}.size-picker>div{display:flex;gap:8px}.size-picker button{flex:1;min-height:45px;border:1px solid #afc0d2;border-radius:6px;background:transparent;font-size:14px;white-space:nowrap}.size-picker button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:white}.position{font-size:14px;line-height:1.6;margin:0;text-align:center;min-height:24px;font-variant-numeric:tabular-nums}.direction-pad{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(3,48px);justify-content:center;gap:5px;margin:15px auto 10px}.direction-pad button{border:1px solid #adbfd3;border-radius:7px;background:#f5f8fb;box-shadow:0 2px 0 #b1c1d2;font-size:27px;line-height:1;transition:background .12s,transform .12s}.direction-pad button:hover:not(:disabled){background:#fff}.direction-pad button:active:not(:disabled){transform:translateY(2px);box-shadow:none}.up{grid-area:1/2}.left{grid-area:2/1}.right{grid-area:2/3}.down{grid-area:3/2}.direction-pad>span{grid-area:2/2;display:grid;place-items:center;color:var(--coral);font-size:17px}.controls-note{font-size:12px;line-height:1.6;margin:0;text-align:center;color:var(--muted)}.feedback{font-size:14px;line-height:1.5;min-height:63px;margin:18px 0 14px;overflow-wrap:anywhere}.feedback.error{color:#962b15}.actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.actions button,.new-maze,.success button,.new-day,.save-notice button{min-height:46px;border:1px solid #a9bdd0;border-radius:5px;background:transparent;font-size:14px}.actions #hint{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;padding:0 15px;background:var(--paper);border-color:#91a5bc}.new-maze{margin-top:12px;border:0;display:flex;justify-content:space-between;align-items:center;width:100%;color:var(--blue);font-weight:650;padding:0 2px;text-align:left}.success{margin-top:18px;border-top:3px solid var(--blue);padding-top:15px}.success h2{font-size:25px;letter-spacing:-.7px;margin:0 0 7px}.success p{font-size:13px;line-height:1.5}.success button{width:100%;background:var(--blue);color:white;border-color:var(--blue)}.new-day{width:100%;margin-top:15px;background:var(--paper)}.about{display:grid;grid-template-columns:200px 1fr;gap:14px 35px;margin-top:55px;border-top:1px solid #b9c8d8;padding:30px 0}.about h2{font-size:22px;letter-spacing:-.6px;margin:0;grid-row:span 2}.about p{font-size:15px;line-height:1.8;margin:0;max-width:640px}.about>a{font-size:14px;color:var(--blue);justify-self:start}footer{padding:28px 32px 35px;border-top:1px solid #c5d2df;font-size:12px;color:var(--muted);display:flex;justify-content:space-between;align-items:center;gap:15px}footer nav{display:flex;gap:24px}footer a{display:inline-flex;align-items:center;min-height:44px}.save-notice{margin-bottom:22px;padding:17px;border-left:3px solid #a64228;background:#fff1e6;font-size:14px}.save-notice p{margin:0 0 10px;line-height:1.5}.save-notice button{padding:0 15px;background:#fff}.save-notice details{margin-top:13px}.save-notice details p{padding-top:8px;overflow-wrap:anywhere}.save-notice summary{cursor:pointer;min-height:32px}dialog{max-width:min(430px,calc(100vw - 30px));border:1px solid #a9b8cc;border-radius:10px;padding:25px;color:var(--ink);background:var(--paper);box-shadow:0 15px 70px #0b254744}dialog::backdrop{background:#0c214c8c;backdrop-filter:blur(3px)}dialog h2{font-size:25px;letter-spacing:-.7px;margin:0 0 12px}dialog p{line-height:1.65;font-size:15px}.dialog-actions{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;margin-top:20px}.dialog-actions button{min-height:46px;padding:8px 15px;background:transparent;border:1px solid #9caec1;border-radius:5px}.dialog-actions button[value=confirm]{background:var(--blue);color:white;border-color:var(--blue)}.noscript{padding:30px}.guide{max-width:800px;padding-bottom:45px}.guide h1{font-size:clamp(34px,5vw,52px);line-height:1.12;max-width:650px}.guide .lead{font-size:19px;line-height:1.6;color:var(--muted);margin-bottom:32px}.guide h2{font-size:24px;letter-spacing:-.7px;margin:34px 0 12px}.guide p,.guide li{font-size:16px;line-height:1.8}.guide ol{padding-left:24px}.guide li{padding-left:6px;margin:10px 0}.play-link{display:inline-flex;align-items:center;min-height:46px;background:var(--blue);color:white;text-decoration:none;padding:10px 20px;border-radius:5px}.example{display:flex;align-items:center;gap:20px;padding:18px;background:var(--paper);margin:25px 0;border-left:3px solid var(--blue)}.example svg{flex:0 0 100px;width:100px;height:100px}.example p{margin:0;font-size:15px}@keyframes arrive{from{opacity:.5;scale:.85}to{opacity:1;scale:1}}@keyframes bump{25%{translate:-3px}75%{translate:3px}}
@media(max-width:720px){.site-header{padding:18px 20px}main{padding:18px 20px 0}.heading{align-items:start;flex-direction:column;gap:15px;margin-bottom:20px}h1{font-size:46px}.heading p{font-size:14px}.mode{align-self:stretch;justify-content:flex-start;gap:20px}.play-layout{grid-template-columns:minmax(0,1fr);gap:23px;max-width:500px;margin:auto}.map-frame{padding:16px}.control-rail{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;padding:0}.size-picker{grid-column:1/-1;margin-bottom:18px}.size-picker>div{max-width:280px}.size-picker legend{margin-bottom:9px}.position{grid-column:1/-1;margin-bottom:7px}.direction-pad{grid-column:1;grid-row:3/6;margin:8px 0}.controls-note{grid-column:1;max-width:165px;margin:auto}.feedback{grid-column:2;grid-row:3;margin:4px 0 9px;min-height:61px;font-size:13px}.actions{grid-column:2;grid-row:4}.new-maze{grid-column:1/-1;margin-top:14px;justify-content:center;gap:25px}.success{grid-column:1/-1}.new-day{grid-column:1/-1}.about{grid-template-columns:1fr;gap:12px;margin-top:33px;padding-top:25px}.about h2{grid-row:auto}.about p{font-size:14px}footer{padding:20px;flex-wrap:wrap;gap:8px}.guide{max-width:680px}.example{align-items:flex-start}.example p{font-size:14px}}
@media(max-width:380px){.site-header{padding:15px 13px}.brand{font-size:23px}.site-header>a:last-child{font-size:12px;gap:5px}main{padding:17px 13px 0}h1{font-size:41px}.heading p{font-size:13px}.map-bar{padding:12px;font-size:12px}.map-frame{padding:10px}.map-legend{gap:20px;margin-top:17px}.control-rail{gap:0 12px}.direction-pad{grid-template-columns:repeat(3,44px);grid-template-rows:repeat(3,44px);gap:4px}.actions{gap:7px}.actions button{font-size:12px}.actions #hint{padding:0 9px}.controls-note{font-size:11px;max-width:138px}.feedback{font-size:12px}.guide h1{font-size:35px}.example{flex-direction:column}.guide p,.guide li{font-size:15px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}