:root{font-family: 'Trebuchet MS',Arial,sans-serif;color:#12324d;background:#eaf1f6;font-synthesis:none;--blue:#235ec2;--ink:#12324d;--yellow:#ffe275}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font-size:15px;font-family:inherit;font-weight:700;cursor:pointer;border:0;border-radius:8px;padding:12px 18px;background:var(--ink);color:white}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:3px solid #b53812;outline-offset:4px}main{max-width:1040px;margin:auto;padding:24px 38px 18px}header{display:flex;justify-content:space-between;align-items:center;font-size:13px}a{color:var(--ink);text-decoration:none;font-weight:bold}a:hover{text-decoration:underline}.edition{color:#456078}.masthead{display:flex;justify-content:space-between;align-items:center;margin:25px 0 22px}.byline{margin:0 0 5px;font-size:14px}h1{font-size:clamp(32px,5vw,54px);line-height:1.05;letter-spacing:-2px;margin:0;font-weight:900}h1 span{color:var(--blue);margin-left:15px}.quiet{background:transparent;color:var(--ink);border:1px solid #849bb0}.game{border:2px solid var(--ink);border-radius:14px;overflow:hidden;background:#e0f1ff;box-shadow:0 7px 0 #cadae6}.dashboard{display:flex;align-items:center;gap:32px;background:#fff8de;padding:13px 22px;border-bottom:2px solid var(--ink)}.dashboard div{display:flex;gap:12px;align-items:baseline}.dashboard span{font-size:13px}.dashboard strong{font-size:22px}.dashboard button{margin-left:auto;background:transparent;color:var(--ink);border:1px solid #9aa492;padding:8px 14px}.scene{position:relative;width:100%;aspect-ratio:760/490;overflow:hidden}canvas{display:block;width:100%;height:100%;touch-action:none}.veil{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#184c8f33;padding:18px}.veil[hidden]{display:none}.dispatch{position:relative;background:#fff9e7;max-width:410px;padding:26px 32px;border:2px solid var(--ink);box-shadow:7px 7px 0 #18395540;transform:rotate(-1deg)}.postmark{position:absolute;right:22px;top:20px;border:2px dashed #235ec2;color:#235ec2;text-align:center;line-height:1;font-size:17px;font-weight:900;padding:6px;transform:rotate(12deg)}.overline{font-size:13px;margin:0 65px 12px 0}.dispatch h2{font-size:36px;line-height:1.02;letter-spacing:-1.5px;margin:0 0 15px}.dispatch p:not(.overline){font-size:15px;line-height:1.5;margin:0 0 18px}.dispatch button{background:var(--blue);width:100%;font-size:17px}.dispatch #overlay-note{font-size:12px;margin:12px 0 0;text-align:center}.route-strip{background:var(--blue);color:white;display:flex;align-items:center;gap:18px;padding:13px 20px}.route-strip span{font-size:13px}.route-strip span:last-child{margin-left:auto;letter-spacing:4px;color:var(--yellow)}.route-strip strong{font-size:18px}.controls{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0 14px}.controls p{margin:0;font-size:15px;font-weight:bold}.controls .key-hint{font-size:12px;font-weight:normal;margin-top:9px;color:#456078}kbd{font:inherit;border:1px solid #9aafbf;border-radius:4px;padding:2px 5px;background:white}.key-hint span{padding:0 8px}#sling{min-width:220px;padding:20px 24px;background:var(--yellow);color:var(--ink);border:2px solid var(--ink);box-shadow:0 4px 0 var(--ink);font-size:18px;touch-action:none;user-select:none;-webkit-user-select:none}#sling span{margin-left:15px}#sling.held{transform:translateY(4px);box-shadow:none;background:#ffc64e}footer{display:flex;justify-content:space-between;color:#48647b;font-size:11px;margin-top:8px}dialog{max-width:490px;color:var(--ink);background:#fff9e7;border:2px solid var(--ink);border-radius:14px;padding:28px}dialog::backdrop{background:#12324dbb}dialog h2{font-size:28px;line-height:1.05;margin:0 0 20px}dialog li,dialog p{font-size:14px;line-height:1.55}dialog li{margin-bottom:12px}dialog ol{padding-left:20px}dialog button{width:100%}@media(max-width:650px){main{padding:17px 14px}.edition{display:none}.masthead{margin:22px 0 17px;gap:10px}h1{font-size:35px;letter-spacing:-1.5px}h1 span{margin-left:6px}.byline{font-size:12px}.quiet{font-size:12px;padding:9px 10px}.dashboard{gap:14px;padding:11px 12px}.dashboard div{display:block}.dashboard span{display:block;font-size:10px;margin-bottom:3px}.dashboard strong{font-size:19px}.dashboard button{padding:8px;font-size:12px}.scene{aspect-ratio:760/650}canvas{object-fit:contain;background:#b9e2fa}.dispatch{padding:22px;max-width:300px}.dispatch h2{font-size:30px}.dispatch p:not(.overline){font-size:13px;margin-bottom:15px}.postmark{right:14px;top:14px;font-size:14px}.overline{font-size:11px}.route-strip{padding:12px;gap:12px}.route-strip strong{font-size:15px}.route-strip span:last-child{display:none}.controls{flex-direction:column;align-items:stretch;gap:17px;padding-top:22px}.controls p{font-size:14px}.controls .key-hint{font-size:11px}#sling{width:100%;padding:19px}footer{font-size:10px;gap:12px}.dispatch #overlay-note{margin:10px 0 0;font-size:11px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}.dispatch{transform:none}}

/* Small action feedback; the board remains the focus. */
.sound-switch { font: inherit; font-size: 13px; min-height: 40px; padding: 6px 10px; white-space: nowrap; cursor: pointer; }
.sound-switch[aria-pressed=true] { box-shadow: inset 0 0 0 2px currentColor; }
.sound-switch:focus-visible { outline: 3px solid currentColor; outline-offset: 3px; }
@media(max-width: 600px) { header { flex-wrap: wrap; gap: 8px; } }