:root{font-family:Arial,Microsoft YaHei,sans-serif;color:#000;background:#fff;font-synthesis:none;font-size:12px}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit;color:inherit}button,summary,select{cursor:pointer}button{border:2px solid;border-color:#fff #808080 #808080 #fff;border-radius:0;background:silver;padding:4px 8px}button:active,button[aria-pressed=true]{border-color:#808080 #fff #fff #808080}button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.board-scroll:focus-visible{outline:1px dotted #000;outline-offset:-3px}button:disabled{cursor:default}#app{--zoom: 1;--board-width: 144px;width:max-content;max-width:100%;margin:24px auto}.game{width:100%}.menu-bar{position:relative;display:flex;background:#f0f0f0;border-bottom:1px solid #808080;height:24px}.menu-bar details{position:relative}.menu-bar summary{list-style:none;padding:4px 9px;-webkit-user-select:none;user-select:none}.menu-bar summary::-webkit-details-marker{display:none}.menu-bar details[open] summary,.menu button:hover{color:#fff;background:navy}.menu{position:absolute;z-index:10;top:24px;left:0;width:244px;padding:3px;background:silver;border:2px solid;border-color:#fff #808080 #808080 #fff;box-shadow:2px 2px #0008}.menu button{display:flex;justify-content:space-between;gap:12px;width:100%;text-align:left;border:0;padding:5px 12px 5px 24px;position:relative;white-space:nowrap}.menu button[aria-checked=true]:before{content:"✓";position:absolute;left:8px}.menu-setting{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:5px 12px 5px 24px}.menu-setting select{min-width:0}#zoom-percent{width:76px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}.menu hr{border:0;border-top:1px solid #808080;border-bottom:1px solid #fff;margin:4px 2px}.native-scroll{width:100%;max-width:100vw;overflow:auto;overscroll-behavior:contain}.native-frame{margin:0 auto;width:max-content;background:silver;padding:calc(6px * var(--zoom));border:calc(3px * var(--zoom)) solid;border-color:#fff #808080 #808080 #fff}.dashboard{position:relative;width:max(calc(174px * var(--zoom)),calc((var(--board-width) + 6px) * var(--zoom)));height:calc(120px * var(--zoom));border:calc(2px * var(--zoom)) solid;border-color:#808080 #fff #fff #808080}.mine-counts{position:absolute;left:calc(2px * var(--zoom));top:calc(3px * var(--zoom));display:flex;flex-direction:column;gap:calc(2px * var(--zoom))}.counter{display:flex;align-items:center;width:max-content;height:calc(26px * var(--zoom));padding:0 0 0 calc(1px * var(--zoom));border:calc(1px * var(--zoom)) solid;border-color:#808080 #fff #fff #808080}.counter-flag{display:block;width:calc(16px * var(--zoom));height:calc(16px * var(--zoom));margin-right:calc(1px * var(--zoom))}.counter strong,.time strong{display:flex}.counter strong{align-self:flex-start}.led-digit{display:block;width:calc(13px * var(--zoom));height:calc(23px * var(--zoom))}.counter-flag,.led-digit,.face,.cell{background-repeat:no-repeat;image-rendering:pixelated}.face{position:absolute;top:calc(50% - 12px * var(--zoom) - 2px);left:calc(min(max(50% - 12px * var(--zoom),(8px + var(--counter-width, 72px)) * var(--zoom)),100% - 86px * var(--zoom)) - 2px);width:calc(24px * var(--zoom));height:calc(24px * var(--zoom));padding:0;border:0}.time{position:absolute;top:calc(50% - 13px * var(--zoom));right:calc(2px * var(--zoom));height:calc(26px * var(--zoom));border:calc(1px * var(--zoom)) solid;border-color:#808080 #fff #fff #808080}.board-scroll{width:max-content;margin:calc(6px * var(--zoom)) auto 0;border:calc(3px * var(--zoom)) solid;border-color:#808080 #fff #fff #808080}.board{display:grid;grid-template-columns:repeat(var(--columns),calc(16px * var(--zoom)));width:max-content;gap:0}.cell{position:relative;width:calc(16px * var(--zoom));height:calc(16px * var(--zoom));border:0;padding:0;touch-action:manipulation}.play-toolbar,.copy-bar,.game-status{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:6px 0}.play-toolbar{justify-content:space-between}#remaining-mines{white-space:nowrap}.mode{display:flex}.game-status{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.copy-bar{border-top:1px solid #808080}.copy-bar label{display:flex;align-items:center;gap:4px}.copy-bar button{padding:4px 6px}#copy-status{flex-basis:100%;width:0;min-height:1.5em;line-height:1.5;overflow-wrap:anywhere}input,select,textarea{background:#fff;border:2px solid;border-color:#808080 #fff #fff #808080;border-radius:0;padding:3px}#custom{text-align:left}.custom-fields{display:flex;gap:10px;flex-wrap:wrap;align-items:end}.custom-fields label{display:flex;flex-direction:column;gap:4px}.custom-fields input{width:62px}#custom-error{color:maroon}#manual label{display:block;margin:8px 0}textarea{display:block;width:100%;height:150px;white-space:pre}#select-copy{margin-top:6px}dialog{max-width:min(560px,calc(100vw - 24px));background:silver;border:3px solid;border-color:#fff #808080 #808080 #fff;padding:16px;line-height:1.6}dialog::backdrop{background:#0005}dialog h2{margin:0 0 12px;font-size:16px}dialog form{text-align:right}dialog table{width:100%}dialog th{text-align:left}dialog td{text-align:right}.about-brand{font-weight:700}.brand-mark{display:none}[hidden]{display:none!important}@media(max-width:600px){#app{margin:8px auto}.play-toolbar,.copy-bar{padding:6px}.mode button,.copy-bar button,.copy-bar select{min-height:32px}.play-toolbar #progress{font-size:11px}}.question-label{position:absolute;right:0;top:0;pointer-events:none;font:bold calc(8px * var(--zoom))/1 monospace;background:silver;padding:0 calc(1px * var(--zoom))}.question-1{color:navy}.question-2{color:#660080}.question-3{color:#804000}.question-4{color:#005000}.opened .question-label{top:0;font-size:calc(5px * var(--zoom));background:transparent;padding:0}.annotated-clue{position:absolute;left:calc(2px * var(--zoom));bottom:0;width:calc(12px * var(--zoom));height:calc(12px * var(--zoom));background-repeat:no-repeat;image-rendering:pixelated;pointer-events:none}