:root{color-scheme:dark;--bg:#102b2e;--card:#17383b;--line:#345253;--cream:#f4e9ce;--muted:#abc3b9;--gold:#e7bb70;--mint:#8cddc2}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 10% 0%,#254a43 0,transparent 52%),var(--bg);color:var(--cream);font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:var(--cream);background:#24494a;border:1px solid #4a6763;border-radius:10px;min-height:42px;padding:8px 13px;cursor:pointer;transition:background .15s,transform .15s}button:hover{background:#365e58}button:active{transform:translateY(1px)}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:3px solid var(--gold);outline-offset:4px}header{max-width:1392px;margin:auto;padding:25px 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:18px}.wordmark{font-weight:750;letter-spacing:3px;text-decoration:none;color:var(--cream)}.edition{font-size:10px;letter-spacing:2px;color:var(--muted)}header button{font-size:12px;background:transparent}main{max-width:1392px;padding:0 28px;margin:auto}.intro{display:flex;justify-content:space-between;align-items:end;padding:37px 0 27px;gap:30px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2.2px;color:var(--gold);margin:0 0 10px}h1{font:52px/1.08 Georgia,serif;letter-spacing:-1.4px;margin:0}h1 span{font:italic 19px/1.5 Georgia,serif;letter-spacing:0;color:var(--muted);display:block;margin-top:10px}.intro-copy{color:var(--muted);font-size:13px;line-height:1.8;margin:0 0 5px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 305px;gap:24px;align-items:start}.play{min-width:0;border:1px solid #537065;border-radius:17px;overflow:hidden;background:#183b3b;box-shadow:0 25px 60px #041e2580}.board-top,.board-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:13px 20px;font-size:11px;color:var(--muted)}.board-top>span:first-child{letter-spacing:2px;color:var(--cream);font-size:10px}.board-top b{font-weight:500;color:var(--cream)}.canvas-wrap{position:relative;background:#295550}canvas{width:100%;display:block;aspect-ratio:4/3;touch-action:manipulation;cursor:pointer}.board-bottom{padding:13px 16px;font-size:10px;border-bottom:1px solid #31514e}.board-bottom span{white-space:nowrap}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px}.gold{background:var(--gold)}.mint{background:var(--mint)}#message{padding:0 20px;font-size:12px;color:var(--mint);min-height:36px}aside{display:grid;gap:16px}.card{padding:20px;border:1px solid var(--line);border-radius:15px;background:linear-gradient(130deg,#20443f80,transparent),var(--card)}h2{font:27px/1.15 Georgia,serif;margin:0 0 10px}.muted{color:var(--muted);font-size:12px;margin:0 0 17px}.planks{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.planks button{padding:7px 4px;min-height:54px;font-size:13px;position:relative}.planks small{display:block;font-size:9px;color:var(--muted)}.planks button[aria-pressed=true]{background:#4a654e;border:2px solid var(--gold)}.planks button:disabled{background:#173030}.planks button:not(:disabled){color:var(--gold)}#destinations{display:grid;gap:5px;margin-top:12px}#destinations button{text-align:left;color:var(--mint);font-size:11px;min-height:35px;padding:5px 10px}.actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:18px}.actions button{font-size:12px;padding:7px}#hint{background:#e7bb70;color:#2a3830;border-color:#e7bb70}.tiny{font-size:10px;line-height:1.65;color:var(--muted);margin-bottom:0}.section-title{display:flex;justify-content:space-between;gap:4px}.section-title .eyebrow{font-size:8px}.section-title span{font-size:9px;color:var(--muted)}#levels{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}#levels button{padding:4px;min-height:34px;font-size:11px;border-color:#355957;background:#203f40}#levels button.current{border-color:var(--gold);color:var(--gold)}#levels button.completed{background:#33594a;color:var(--mint)}#win{position:absolute;inset:20% 10%;background:#143632f5;border:1px solid var(--gold);border-radius:20px;padding:28px;text-align:center;box-shadow:0 20px 60px #0007;display:flex;flex-direction:column;align-items:center;justify-content:center}#win h2{font-size:34px}#win p:not(.eyebrow){font-size:13px;color:var(--muted)}#continue{background:var(--gold);color:var(--bg);border:0}.guide{margin:24px 0 0;border:1px solid var(--line);padding:27px;border-radius:17px;background:var(--card)}.guide>div{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;font-size:13px;color:var(--muted)}.guide b{display:block;color:var(--cream);margin-bottom:7px}.guide button{margin-top:15px}footer{text-align:center;padding:30px 24px;color:var(--muted);font-size:10px;line-height:1.9}footer a{color:var(--cream)}footer span{opacity:.65}[hidden]{display:none!important}@media(min-width:1500px){main,header{max-width:1280px}}@media(max-width:950px){.workspace{grid-template-columns:minmax(0,1fr) 265px;gap:14px}.card{padding:15px}.intro-copy{display:none}.intro{padding-top:26px}h1{font-size:43px}main{padding:0 18px}header{padding:19px 18px}.edition{display:none}}@media(max-width:700px){.workspace{grid-template-columns:1fr}aside{grid-template-columns:1fr 1fr;align-items:start;gap:10px}.card{padding:14px}.chapters{padding:14px 10px}h1{font-size:39px}.intro{padding:23px 0}h1 span{font-size:16px}.eyebrow{font-size:8px}.board-top,.board-bottom{padding:11px}.board-bottom{font-size:8px}main{padding:0 12px}h2{font-size:22px}.guide>div{grid-template-columns:1fr;gap:4px}.wordmark{font-size:12px}.planks{grid-template-columns:repeat(2,1fr)}#win{inset:10% 8%;padding:20px}#win h2{font-size:28px}#levels{grid-template-columns:repeat(4,1fr)}.section-title{display:block}#message{font-size:11px}}@media(prefers-reduced-motion:reduce){button{transition:none}}