:root{color-scheme:light;--ink:#233b39;--muted:#657570;--paper:#f7f5ef;--green:#226655;--line:#dcded6;--colors:#ed8061}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}main{max-width:1120px;margin:auto;padding:30px 24px}header{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}h1{font-size:clamp(40px,6vw,64px);line-height:1;margin:8px 0 14px;letter-spacing:-3px}h2{font-size:20px;margin:0 0 12px}p{margin:8px 0}.dot{color:#e97956}.eyebrow{text-transform:uppercase;font-size:11px;font-weight:800;letter-spacing:2px;color:var(--green)}header p:not(.eyebrow){color:var(--muted);max-width:620px}.settings{display:flex;gap:14px;align-items:end;margin-bottom:22px;flex-wrap:wrap}label{display:flex;flex-direction:column;gap:5px;font-size:12px;font-weight:700}select,button{font:inherit;color:var(--ink);border:1px solid #bdc7bd;border-radius:10px;background:#fff;min-height:46px;padding:10px 14px}select{font-size:15px;max-width:100%}button{cursor:pointer;font-size:14px;font-weight:650;transition:background .15s}button:hover{background:#eaf1e9}button:disabled{opacity:.45;cursor:default}button:focus-visible,select:focus-visible,summary:focus-visible,svg:focus-visible{outline:3px solid #226655;outline-offset:3px}.primary{background:var(--green);color:white;border-color:var(--green);width:100%}.primary:hover{background:#174a3f}.game-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:24px;align-items:start}.board-card{background:#fffdf8;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 12px 40px #223a3510}.board-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:20px 20px 0}.board-head h2{margin:0}.badge{background:#e8eee5;border-radius:20px;font-size:13px;font-weight:750;padding:6px 12px;white-space:nowrap}.board-help{font-size:13px;color:var(--muted);min-height:40px;padding:0 20px}#board{display:block;width:100%;height:auto;touch-action:none;user-select:none;-webkit-user-select:none}#pieces polygon{cursor:grab;stroke:#ffffffaa;stroke-width:.028;stroke-linejoin:round}#pieces g.selected polygon{stroke:var(--ink);stroke-width:.06;filter:drop-shadow(0 .04px .05px #0004)}#pieces g.hinted polygon{stroke:#111;stroke-width:.085;stroke-dasharray:.12 .05}#pieces text{font:700 .24px system-ui;fill:#152d31;pointer-events:none;text-anchor:middle;dominant-baseline:central;paint-order:stroke;stroke:#ffffffa0;stroke-width:.04px}.message{padding:16px 20px;background:#f0f3eb;min-height:64px;font-size:14px}.message.won{background:#d6eddd;font-weight:700}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:16px}.hint-panel{background:#edf2e9}.palette{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 18px}.palette button{padding:6px;min-width:38px;min-height:40px;border:2px solid transparent;background:var(--piece);color:#10272c}.palette button[aria-pressed=true]{border-color:#233b39;box-shadow:0 0 0 3px #fff inset}.tools{display:grid;grid-template-columns:1fr 1fr;gap:8px}.muted{font-size:12px;color:var(--muted)}#solution{width:100%;margin-top:4px}#hint-text{font-size:14px;min-height:28px}.instructions{font-size:14px}.instructions summary{cursor:pointer;font-weight:700}.instructions ol{padding-left:20px}.instructions li{margin-bottom:8px}.footer-tools{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px}footer{font-size:12px;color:var(--muted);text-align:center;margin-top:28px}@media(max-width:760px){main{padding:18px 12px}header{align-items:start}header label{max-width:110px}header select{padding:8px}h1{font-size:44px}.game-layout{grid-template-columns:1fr;gap:16px}.settings{gap:8px}.settings label{flex:1;min-width:120px}.settings button{min-height:44px}.board-head{padding:16px 14px 0}.board-help{padding:0 14px}.panel{padding:16px}.palette button{min-width:40px}.tools button{min-height:48px}.message{padding:14px}.board-card{max-width:600px;width:100%;margin:auto}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}