:root{--ink:#263e38;--muted:#5b6962;--paper:#f7f4ec;--white:#fffdf7;--line:#d1d9ca;--green:#375f50;--green-dark:#234536;--orange:#e8894f;--purple:#8880ca;font-family:ui-rounded,"Avenir Next",Avenir,"Trebuchet MS",sans-serif;color:var(--ink);background:var(--paper);font-size:16px;font-synthesis:none}*{box-sizing:border-box}body{margin:0;line-height:1.55}button,input{font:inherit}button{cursor:pointer;touch-action:manipulation;border:1px solid transparent;color:inherit;line-height:1.3}button:disabled{cursor:default;opacity:.46}button:not(:disabled):active{transform:translateY(1px)}a{color:inherit}button,a,summary,input{outline-offset:4px}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,#play:focus-visible{outline:3px solid #9b521e}button,summary,a{-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}.skip-link{position:fixed;top:4px;left:10px;z-index:5;padding:8px;background:var(--white);transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.masthead{max-width:1160px;margin:auto;padding:20px 36px;display:flex;gap:20px;align-items:center;border-bottom:1px solid var(--line)}.wordmark{display:flex;align-items:center;gap:9px;font-weight:850;font-size:32px;line-height:1;text-decoration:none;letter-spacing:-1px}.wordmark svg{width:36px;height:36px}.wordmark-dot{color:#a74921}.prototype-label{font-size:14px;color:var(--muted);margin-right:auto}.quiet{min-height:44px;padding:10px 12px;border-color:var(--line);border-radius:12px;background:transparent;font-weight:600}.quiet:hover{background:#ebedde}main{max-width:1090px;margin:auto;padding:28px 32px 0}.intro{margin-bottom:30px}.intro h1{font-size:clamp(1.6rem,3.8vw,2.75rem);line-height:1.15;letter-spacing:-.045em;margin:0 0 10px;font-weight:780}.intro p{margin:0;color:var(--muted);font-size:17px}.game-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,1fr);gap:28px;align-items:start}.board-panel{background:#e9eddf;border:1px solid #cdd7c5;border-radius:24px;padding:22px;box-shadow:0 6px 0 #dce2d3;min-width:0}.board-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.eyebrow{font-size:14px;line-height:1.3;color:var(--muted);margin:0 0 6px}.board-heading h2{font-size:26px;line-height:1.15;letter-spacing:-.035em;margin:0}.board-heading .quiet{font-size:14px;background:#f5f6ed;white-space:nowrap}.level-subtitle{font-size:15px;color:#526354;margin:12px 0 14px;line-height:1.5}.board-wrap{max-width:490px;margin:0 auto;border:1px solid #cbd4bf;border-radius:18px;padding:7px;background:#dde4d2;box-shadow:inset 0 2px 7px #2035250b}.board-wrap svg{display:block;width:100%;height:auto;overflow:visible}.board-footer{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;font-size:14px;font-weight:600;line-height:1.4}.signal-label{display:flex;align-items:center;gap:7px}.shape{display:inline-block;flex:none;width:12px;height:12px;border:1.5px solid var(--ink);background:var(--orange)}.shape.circle{border-radius:50%}.shape.diamond{transform:rotate(45deg);background:var(--purple);margin:2px}.beat{margin-left:auto;font-variant-numeric:tabular-nums;font-weight:500;color:var(--muted)}.controls-panel{padding:18px 4px;min-width:0}.switch-heading h2{font-size:19px;margin:0 0 3px;letter-spacing:-.025em}.small-note{font-size:14px;line-height:1.5;color:var(--muted)}.switches{display:flex;gap:10px;margin:18px 0 12px}.switch{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:6px;flex:1;min-width:0;padding:9px 12px;background:var(--white);border:2px solid #bcc8b6;border-radius:16px;box-shadow:0 3px 0 #d0d6c7;font-size:20px;font-weight:750}.switch[data-on="true"]{border-color:var(--green);background:#e1e9da}.switch:hover{border-color:var(--green)}.switch small{display:flex;align-items:center;font-size:14px;font-weight:650;color:var(--muted);gap:5px}.toggle-track{width:29px;height:17px;border-radius:10px;background:#c5cec0;position:relative;flex:none}.toggle-track:after{content:"";position:absolute;left:3px;top:3px;width:11px;height:11px;background:#526a59;border-radius:50%}.switch[data-on="true"] .toggle-track:after{left:15px;background:var(--green)}.switch-help{font-size:15px;line-height:1.5;color:var(--muted);margin:16px 0 20px}.switch-help strong{font-weight:650}.primary{display:flex;width:100%;justify-content:space-between;align-items:center;gap:12px;min-height:54px;padding:14px 20px;border-radius:15px;font-weight:700;font-size:17px;background:var(--green);border:1px solid var(--green-dark);color:#fffdf3;box-shadow:0 3px 0 var(--green-dark)}.primary:hover:not(:disabled){background:var(--green-dark)}.secondary-actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.secondary{flex:1;min-height:46px;padding:10px 15px;border:1px solid #bac6b4;background:#fdfbf5;border-radius:12px;font-weight:600}.secondary:hover:not(:disabled){background:#e8eddf}.feedback{min-height:76px;margin-top:22px;padding:14px 16px;border-radius:14px;background:#eeeadd;font-size:15px;line-height:1.5;border-left:3px solid #b7bb9d}.feedback[data-kind="failed"]{background:#fae5d4;border-left-color:#a74921}.feedback[data-kind="won"]{background:#e0ecd9;border-left-color:#375f50}.next{margin-top:12px}.hint{border-bottom:1px solid var(--line);padding:14px 0;margin:8px 0 18px;font-size:15px}.hint summary{cursor:pointer;padding:8px 0;min-height:44px;display:list-item;font-weight:650;list-style-position:inside}.hint p{color:var(--muted);margin:10px 0 4px}.session-footer{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;font-size:14px;color:var(--muted)}.text-button{padding:10px 0;min-height:44px;text-decoration:underline;text-underline-offset:4px;text-decoration-color:#8d9c89;background:none;border:0;text-align:left;font-size:14px;color:var(--muted)}#share-status:empty{display:none}.below-board{margin:32px 0 18px}.below-board>p{font-size:16px;margin:0 0 12px}.footnotes{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:space-between;color:var(--muted);font-size:14px;line-height:1.5}.site-footer{max-width:1160px;padding:16px 36px 26px;margin:12px auto 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:14px}dialog{border:1px solid #c9d3c1;background:var(--paper);color:var(--ink);border-radius:22px;padding:24px;max-width:580px;width:calc(100% - 28px);max-height:calc(100dvh - 28px);overflow:auto;box-shadow:0 24px 90px #12281f35}dialog::backdrop{background:#21372ecd;backdrop-filter:blur(3px)}.dialog-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.dialog-top h2{font-size:26px;line-height:1.2;letter-spacing:-.03em;margin:6px 0 12px}.dialog-top .quiet{flex:none}.rules{padding-left:24px}.rules li{padding-left:4px;margin:16px 0}.rules strong{display:block}dialog>.primary{margin-top:24px}.level-list{display:grid;gap:8px;margin-top:20px}.level-choice{display:grid;grid-template-columns:32px 1fr auto;gap:12px;text-align:left;align-items:center;min-height:64px;padding:12px;background:var(--white);border:1px solid var(--line);border-radius:12px}.level-choice[aria-current="true"]{border:2px solid var(--green);background:#e6eddf}.level-choice small{display:block;font-size:14px;line-height:1.5;color:var(--muted);font-weight:400}.level-choice .completed{font-size:14px;font-weight:600}label{display:block;font-weight:600;margin:16px 0 8px}input{width:100%;min-width:0;min-height:48px;padding:10px;border:1px solid var(--green);border-radius:8px;background:var(--white);color:var(--ink)}#reset-confirm{padding:8px 0}.track-bg{fill:#f8f8ec;stroke:#becbb3;stroke-width:1.3}.track-bg.junction{fill:#fff4d7;stroke:#a99964;stroke-width:2}.arrow{stroke:#3e5b48;stroke-width:5;stroke-linecap:round;stroke-linejoin:round;fill:none}.ghost-arrow{stroke:#99a58e;stroke-width:2.2;stroke-dasharray:3 4;fill:none}.junction-letter{font-size:16px;font-weight:800;fill:#4a593a}.goal-bg{fill:#d0ddc5;stroke:#9eb193;stroke-width:1.5}.token{stroke:#35473c;stroke-width:2.2}.token-ring{stroke:#fffdf4;stroke-width:2;fill:none}.dock-mark{fill:#335f42;font-size:16px;font-weight:800}.trail{stroke:#b6c5a9;stroke-width:4;stroke-linecap:round}.goal-label{fill:#3c5544;font-size:10px;font-weight:800;letter-spacing:.7px}.empty-dot{fill:#bac8ae}.board-wrap[data-flash="true"]{animation:gentle-nod .22s ease-out}@keyframes gentle-nod{50%{background:#d0ddc5}}@media(max-width:800px){.masthead{padding:16px 24px}.prototype-label{display:none}.masthead .quiet{margin-left:auto}main{padding:24px 24px 0}.game-layout{gap:20px;grid-template-columns:minmax(0,1.25fr) minmax(255px,1fr)}.board-panel{padding:16px}.board-heading h2{font-size:23px}.board-heading{align-items:flex-start;flex-wrap:wrap}.board-heading .quiet{margin-left:auto}.switch{padding:9px}.toggle-track{display:none}.controls-panel{padding-top:8px}.site-footer{padding:16px 24px}}@media(max-width:650px){.masthead{padding:14px 20px}.wordmark{font-size:29px}.wordmark svg{width:31px;height:31px}main{padding:22px 18px 0}.intro{margin-bottom:22px}.intro h1{font-size:1.8rem;max-width:340px}.intro p{font-size:16px;max-width:340px}.game-layout{display:block}.board-panel{padding:16px;border-radius:20px}.board-heading h2{font-size:24px}.board-heading{flex-wrap:nowrap}.board-heading .quiet{padding:9px;white-space:normal;max-width:95px;font-size:14px}.level-subtitle{margin:10px 0 14px}.board-wrap{padding:5px}.board-footer{gap:8px 14px;margin-top:13px}.beat{margin-left:0}.controls-panel{padding:28px 2px 0}.switch-heading{display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}.switches{margin:14px 0}.switch{min-height:58px;padding:10px 14px}.toggle-track{display:block}.switch-help{margin:16px 0}.feedback{min-height:0;margin-top:20px}.below-board{margin-top:28px}.site-footer{padding:16px 20px 24px}dialog{padding:20px}.dialog-top h2{font-size:24px}.dialog-top{gap:8px}}@media(max-width:360px){main{padding:20px 12px 0}.masthead{padding:12px 16px}.intro h1{font-size:1.6rem}.board-panel{padding:12px}.board-heading h2{font-size:22px}.board-heading .quiet{max-width:82px}.switch{padding:10px}.toggle-track{display:none}.board-footer{font-size:14px}.signal-label{gap:5px}.level-choice{grid-template-columns:24px 1fr;gap:8px}.level-choice .completed{grid-column:2}.dialog-top{flex-wrap:wrap}.dialog-top .quiet{margin-left:auto}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

@media(max-width:650px){.controls-panel{display:flex;flex-direction:column;padding-top:20px}.switch-heading{order:0}.switch-heading h2{font-size:16px}.switch-heading .small-note{font-size:14px}.switches{order:1;margin:10px 0 14px}.controls-panel>.primary:not(.next){order:2}.secondary-actions{order:3}.feedback{order:4}.next{order:5}.switch-help{order:6;margin:18px 0 0}.hint{order:7}.session-footer{order:8}#share-status{order:9}.intro{margin-bottom:18px}.intro h1{font-size:1.55rem}.board-panel{padding:12px}.level-subtitle{margin:8px 0 10px}.board-footer{margin-top:10px}.controls-panel>.secondary-actions .secondary{min-height:44px}}

#board:focus-visible{outline:3px solid #9b521e;outline-offset:5px;border-radius:12px}
/* Content-sized wrapping keeps the controls usable with enlarged reader text. */
.masthead{flex-wrap:wrap}.wordmark{flex-shrink:0}.board-heading{flex-wrap:wrap}.board-heading>div{flex:1 1 140px;min-width:0}.board-heading .quiet{max-width:none;flex:0 1 auto}.switches{flex-wrap:wrap}.switch{min-width:max-content;flex:1 1 80px}.primary{text-align:left}
.dialog-top{flex-wrap:wrap}.dialog-top h2{flex:1 1 180px;min-width:0;overflow-wrap:anywhere}.dialog-top .quiet{margin-left:auto}.level-choice{grid-template-columns:min-content minmax(0,1fr)}.level-choice>span{min-width:0}.level-choice strong{overflow-wrap:anywhere}.level-choice .completed{grid-column:2}
dialog{overflow-wrap:anywhere}
.level-choice>span:first-child{white-space:nowrap;overflow-wrap:normal;min-width:2ch;font-variant-numeric:tabular-nums}

.legacy-home{border:1px solid var(--line);border-radius:14px;padding:18px;margin:0 0 28px;background:#eeeadd}.legacy-home p{margin:8px 0;max-width:65ch}.legacy-home a{display:inline-flex;min-height:44px;align-items:center;max-width:100%;overflow-wrap:anywhere}.wordmark small{display:block;font-size:16px;font-weight:650;letter-spacing:.02em;line-height:1.3;margin-top:2px}.analytics-choice{margin:28px 0;padding:22px;border:1px solid var(--line);border-radius:18px;background:#eeeadd;max-width:800px}.analytics-choice h2{font-size:20px;line-height:1.3;margin:0 0 8px}.analytics-choice p{margin:0;max-width:65ch}.analytics-choice .secondary-actions{margin-top:16px}.analytics-choice .secondary{flex:0 1 auto}.analytics-settings{border-top:1px solid var(--line);margin-top:28px;padding-top:16px}.analytics-settings h3{font-size:20px;line-height:1.3}.analytics-settings .secondary-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,13em),1fr))}.analytics-settings .secondary{overflow-wrap:normal}.info-page{max-width:780px;padding-bottom:40px;overflow-wrap:anywhere}.info-page h1{font-size:clamp(1.8rem,5vw,2.6rem);line-height:1.2}.info-page h2{font-size:22px;line-height:1.3;margin-top:32px}.info-page p{max-width:68ch}.info-nav{max-width:100%;min-height:44px;display:inline-flex;align-items:center;padding:10px 0}.site-footer a{display:inline-block;padding:8px 0}.wordmark{max-width:100%;overflow-wrap:anywhere;flex-shrink:1}