.island-tools{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0}.island-tools button{min-height:44px}.island-tools [aria-pressed=true]{outline:2px solid var(--accent);outline-offset:1px}.island-viewport{overflow:auto;max-width:100%;padding:3px}.island-grid{display:grid;max-width:560px;aspect-ratio:1}.island-cell{aspect-ratio:1;padding:0;min-height:44px;border:1px solid #738879;background:#d0d9d3;color:#263b36;font-size:21px;line-height:1}.island-cell[data-mark="1"]{background:#fff9e9}.island-cell[data-mark="2"]{background:#263b36;color:#d9e8e0}.island-cell:disabled{opacity:1}.island-cell[data-given=true]{font-weight:800;text-decoration:underline;text-underline-offset:4px}.island-cell[data-conflict=true]{box-shadow:inset 0 0 0 3px #d25443}.island-cell[data-hint=true]{outline:3px solid #cf7b13;outline-offset:-5px}.island-overview{font-size:12px;margin-bottom:6px}.island-overview summary{min-height:44px;cursor:pointer;line-height:44px}.island-overview svg{display:block;width:180px;max-width:100%;margin:4px 0}.island-notice{font-size:14px}.island-notice button{display:block;margin-top:6px;min-height:44px}