:root{--gk-accent:#146b5a;--gk-bg:#fbf7ee;--gk-text:#233d35;--gk-radius:16px;--ink:#233d35;--paper:#fbf7ee;--green:#146b5a}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,sans-serif;line-height:1.6}a{color:var(--green)}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}[hidden]{display:none!important}.wrap{width:min(100% - 32px,1020px);margin:auto}.site-header{border-bottom:1px solid #dcded4;background:#fffdf7}.header-inner{display:flex;align-items:center;gap:20px;padding:14px 0;flex-wrap:wrap}.brand{display:flex;gap:10px;text-decoration:none;font-weight:800;color:var(--ink);align-items:center}.brand-mark{background:var(--green);color:white;padding:1px 9px;border-radius:9px;font-size:24px}.site-nav{display:flex;gap:15px;flex-wrap:wrap;font-size:14px}.site-nav a{text-decoration:none}.site-nav a.active{font-weight:800;text-decoration:underline}.nav-toggle{display:none}.header-account{margin-left:auto}.skip-link{position:absolute;top:-70px}.skip-link:focus{top:0;background:white;z-index:5}.page-heading{text-align:center;margin:32px auto 20px;max-width:680px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:800;color:var(--green)}h1{font-size:clamp(26px,4vw,40px);line-height:1.15;margin:12px 0}h2{line-height:1.3}.page-heading>p:last-child{color:#58695e}.game{max-width:500px;margin:0 auto 26px;background:#fffdf7;border:1px solid #d9dfd3;padding:18px;border-radius:22px;box-shadow:0 8px 35px #233d3509}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px}.toolbar strong{font-size:22px}.board-help{text-align:center;font-size:13px;color:#647367;margin:12px 0}.board{display:grid;grid-template-columns:repeat(var(--size),1fr);gap:7px;touch-action:none;user-select:none;aspect-ratio:1}.tile{position:relative;display:flex;align-items:center;justify-content:center;border:1px solid #d9d4bc;border-bottom:4px solid #c7c3aa;border-radius:13px;background:#f1edda;color:var(--ink);font-size:clamp(18px,4.6vw,29px);font-weight:800;line-height:1;padding:0;touch-action:none;min-width:0}.tile small{position:absolute;right:6px;bottom:5px;font-size:10px;font-weight:600}.tile.selected{background:var(--green);color:white;border-color:#0d5547}.tile.last{outline:3px solid #dca23a;outline-offset:-4px}.tile.selected::before{content:attr(data-step);position:absolute;top:4px;left:5px;font-size:9px;font-weight:500;opacity:.8}.tile:focus-visible,.btn:focus-visible{outline:3px solid #d68d20;outline-offset:2px}.selection{min-height:65px;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:9px 0;overflow-wrap:anywhere;text-align:center}.selection strong{letter-spacing:1px}.selection span{font-size:12px;color:#667368}.actions{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid #c9d4c5;background:transparent;color:var(--ink);padding:7px 13px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:650}.btn-primary{background:var(--green);color:white;border-color:var(--green)}.message{min-height:24px;text-align:center;font-size:13px;margin:8px 0}.found{margin:4px 0 18px;padding-left:26px;font-size:14px}.found li{padding:3px}.page-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:25px auto}.reading{max-width:760px;margin:28px auto}.reading p{margin:16px 0}.overlay{position:fixed;inset:0;background:#17352999;z-index:1000;display:flex;align-items:center;justify-content:center;padding:18px;overscroll-behavior:contain}.overlay-card{position:relative;width:min(100%,470px);background:var(--paper);border-radius:22px;padding:0 24px 24px;max-height:90dvh;overflow:auto;box-shadow:0 20px 80px #0004}.overlay-close{position:sticky;top:10px;display:block;margin:10px 0 0 auto;z-index:1;border:1px solid #a5b6a7;background:var(--paper);color:var(--ink);border-radius:50%;width:36px;height:36px;font-size:26px;line-height:1}.overlay-card h2{margin:8px 0}.round-total{font-size:22px}.round-total strong{font-size:42px}.breakdown{padding-left:23px}.breakdown li{padding:6px 0}.breakdown span{display:block;font-size:12px;color:#516456}.footer-cols{display:flex;justify-content:space-between;flex-wrap:wrap;gap:22px}.site-footer{background:#eaf0e5;border-top:1px solid #d2ddce;margin-top:40px;padding:30px 0}.footer-col h2{font-size:15px}.footer-col ul{list-style:none;padding:0;font-size:13px}.footer-col li{padding:3px 0}.footer-note{font-size:12px;color:#58695e}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:12px;text-align:left;border:1px solid #cdd7c6}th{background:#eaf0e5}.gk-bm-btn{margin-left:auto}
@media(max-width:650px){.wrap{width:calc(100% - 24px)}.header-inner{gap:10px}.brand-name{font-size:16px}.nav-toggle{display:block;margin-left:auto;width:36px;height:36px;border:0;background:transparent}.nav-toggle span{display:block;height:2px;background:var(--ink);margin:6px}.site-nav{display:none;width:100%;order:5}.site-nav.open{display:flex}.page-heading{margin-top:22px}.page-heading>p:last-child{font-size:14px}.game{padding:12px;border-radius:18px}.board{gap:5px}.tile{border-radius:10px}.actions{gap:6px}.btn{padding:7px 10px;font-size:13px}.overlay-card{padding:0 18px 20px}.footer-col{min-width:42%}}