:root{--ink:#1f2328;--paper:#fbfbfa;--muted:#5b6370;--cursor:#2f6fde;--scrim:#14161a59;--void:#1d1f24;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--ink:#eef0f3;--paper:#23262c;--muted:#a7aeb9;--cursor:#7aa7ff;--scrim:#00000080}}:root[data-theme=dark]{--ink:#eef0f3;--paper:#23262c;--muted:#a7aeb9;--cursor:#7aa7ff;--scrim:#00000080}*,:before,:after{box-sizing:inherit}html{height:100%;scroll-padding-top:env(safe-area-inset-top,0px)}body{background:var(--void);height:100%;color:var(--ink);font:16px/1.45 var(--font);-webkit-user-select:none;user-select:none;margin:0;overflow:hidden}#game{position:fixed;inset:0}#game canvas{display:block}#ui{pointer-events:none;position:fixed;inset:0}#ui>*{pointer-events:auto}.box,.dialog,.menu,.panel,.banner,.menu-btn{background:var(--paper);color:var(--ink);border:3px solid var(--ink);box-shadow:inset 0 0 0 2px var(--paper), inset 0 0 0 3px color-mix(in srgb, var(--ink) 25%, transparent);border-radius:6px}button{font:inherit;color:inherit;cursor:pointer}:focus-visible{outline:3px solid var(--cursor);outline-offset:2px}.banner{top:calc(12px + env(safe-area-inset-top,0px));left:calc(12px + env(safe-area-inset-left,0px));opacity:0;pointer-events:none;max-width:min(520px,100% - 120px);padding:8px 14px;font-weight:600;transition:transform .18s ease-out,opacity .18s ease-out;position:absolute;transform:translateY(-140%)}.banner.on{opacity:1;transform:none}.menu-btn{top:calc(12px + env(safe-area-inset-top,0px));right:calc(12px + env(safe-area-inset-right,0px));padding:6px 14px;font-weight:600;position:absolute}.dialog{left:50%;bottom:calc(16px + env(safe-area-inset-bottom,0px));cursor:pointer;width:min(720px,100% - 24px);padding:14px 18px 12px;position:absolute;transform:translate(-50%)}.dialog-text{margin:0 0 6px;font-size:17px}.dialog-cue{color:var(--muted);justify-content:flex-end;align-items:center;gap:12px;margin:0;font-size:13px;display:flex}.cue-touch{display:none}.dialog-close{border:2px solid var(--ink);color:var(--ink);background:0 0;border-radius:4px;padding:2px 10px;font-size:13px;font-weight:600}.menu{top:calc(60px + env(safe-area-inset-top,0px));right:calc(12px + env(safe-area-inset-right,0px));flex-direction:column;width:200px;padding:8px 6px;display:flex;position:absolute}.menu.behind{filter:brightness(.92)}.menu-item{text-align:left;background:0 0;border:0;border-radius:4px;padding:7px 10px 7px 28px;font-size:17px;position:relative}.menu-item[aria-current=true]:before{content:"▶";color:var(--cursor);font-size:11px;position:absolute;top:50%;left:9px;transform:translateY(-50%)}.menu-item:focus-visible{outline-offset:-3px}.panel{width:min(460px,100% - 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