:root{--page-bg: #06122a;--panel-bg: rgba(255, 255, 255, .08);--panel-border: rgba(255, 255, 255, .12);--panel-text: rgba(255, 255, 255, .92);--btn-bg: rgba(255, 255, 255, .08);--btn-border: rgba(255, 255, 255, .18);--btn-text: rgba(255, 255, 255, .92);--canvas-ui-bg: rgba(255, 255, 255, .06);--canvas-ui-border: rgba(255, 255, 255, .1);--canvas-text: rgba(255, 255, 255, .92);--canvas-text-muted: rgba(255, 255, 255, .72);--ui-btn-h: 52px;--ui-gap: 12px}:root[data-theme=light]{--page-bg: #f4f6fb;--panel-bg: rgba(0, 0, 0, .06);--panel-border: rgba(0, 0, 0, .1);--panel-text: rgba(0, 0, 0, .88);--btn-bg: rgba(0, 0, 0, .06);--btn-border: rgba(0, 0, 0, .14);--btn-text: rgba(0, 0, 0, .88);--canvas-ui-bg: rgba(0, 0, 0, .05);--canvas-ui-border: rgba(0, 0, 0, .1);--canvas-text: rgba(0, 0, 0, .88);--canvas-text-muted: rgba(0, 0, 0, .6)}:root[data-theme=light] #pause-panel,:root[data-theme=light] #gameover-panel{background:var(--page-bg);border-color:var(--panel-border)}:root[data-theme=light] .theme-btn{background:var(--btn-bg)}:root[data-theme=light] .theme-btn.is-active{border-color:var(--btn-border)}:root[data-theme=light] .pause-slider::-webkit-slider-runnable-track{background:var(--btn-bg);box-shadow:inset 0 0 0 1px var(--btn-border)}:root[data-theme=light] .pause-slider::-moz-range-track{background:var(--btn-bg);border-color:var(--btn-border)}:root[data-theme=light] .pause-slider::-moz-range-progress{background:var(--btn-border)}html,body{margin:0;padding:0;height:100%;width:100%;background:var(--page-bg);overflow:hidden;overscroll-behavior:none;touch-action:none}body{position:fixed;inset:0}body,#game,#pause-panel,#gameover-panel,#menu-panel,#leaderboard-panel{-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;user-drag:none}img{-webkit-user-drag:none;user-drag:none}::-webkit-scrollbar{width:0;height:0}#game{display:block;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:min(100vw,56.25vh);height:min(100vh,calc(100vw * 16 / 9));max-width:100vw;max-height:100vh;touch-action:none;box-shadow:0 8px 32px #0006,0 2px 8px #0003}#pause-panel{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(260px,calc(100vw - 24px));padding:12px;background:#00000059;border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-sizing:border-box;color:var(--panel-text);font:14px system-ui,-apple-system,Segoe UI,Roboto,Arial;border-radius:10px;display:none;z-index:30}#pause-panel[data-context=menu]{width:min(320px,calc(100vw - 24px))}#pause-panel[data-context=menu] .pause-actions{grid-template-columns:1fr}#pause-panel.is-open{display:block}#gameover-panel{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(320px,calc(100vw - 24px));padding:14px;background:#00000059;border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-sizing:border-box;color:var(--panel-text);font:14px system-ui,-apple-system,Segoe UI,Roboto,Arial;border-radius:12px;display:none;z-index:11}#gameover-panel.is-open{display:block}#menu-panel{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(320px,calc(100vw - 24px));padding:14px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-sizing:border-box;color:var(--panel-text);font:14px system-ui,-apple-system,Segoe UI,Roboto,Arial;border-radius:12px;display:none;z-index:12}#menu-panel.is-open{display:block}.menu-profile{display:none;align-items:center;flex-direction:column;gap:8px;margin-bottom:10px}.menu-profile.is-visible{display:flex}.menu-avatar{width:84px;height:84px;border-radius:50%;object-fit:cover;background:var(--btn-bg);border:1px solid var(--btn-border)}.menu-nick{font-size:20px;opacity:.9;text-align:center;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#pause-panel[data-context=menu] .pause-menu-btn{display:none}.menu-title{font-size:18px;font-weight:600;margin-bottom:12px;text-align:center}.menu-hint{font-size:13px;line-height:1.25;opacity:.78;text-align:center;margin:0 6px 12px}.menu-actions{display:grid;grid-template-columns:1fr;gap:var(--ui-gap)}.menu-btn{appearance:none;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--btn-text);height:var(--ui-btn-h);padding:0 12px;border-radius:12px;font:20px system-ui,-apple-system,Segoe UI,Roboto,Arial}.gameover-title{font-size:25px;font-weight:600;margin-bottom:8px;text-align:center}.gameover-score{font-size:20px;opacity:.85;margin-bottom:12px;text-align:center}.gameover-actions{display:grid;grid-template-columns:1fr 1fr;gap:var(--ui-gap)}.gameover-btn-wide{grid-column:1 / -1}.gameover-btn{appearance:none;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--btn-text);height:var(--ui-btn-h);padding:0 10px;border-radius:10px;font:19px system-ui,-apple-system,Segoe UI,Roboto,Arial}.pause-row{display:grid;grid-template-columns:1fr;gap:8px;margin-bottom:12px}.pause-row:last-child{margin-bottom:0}.pause-label{opacity:.9}.pause-slider{width:100%;height:34px;background:transparent;-webkit-appearance:none;appearance:none;touch-action:pan-x}.pause-slider::-webkit-slider-runnable-track{height:10px;background:#ffffff1a;box-shadow:inset 0 0 0 1px #ffffff24;border-radius:999px}.pause-slider::-moz-range-track{height:10px;background:#ffffff1a;border:1px solid rgba(255,255,255,.14);border-radius:999px}.pause-slider::-moz-range-progress{height:10px;background:#ffffff29;border-radius:999px}.pause-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;margin-top:-4px;background:#ffffffd9;box-shadow:0 0 0 2px #0000001f;border-radius:999px}.pause-slider::-moz-range-thumb{width:18px;height:18px;background:#ffffffd9;border:0;border-radius:999px;box-shadow:0 0 0 2px #0000001f}.pause-slider:focus{outline:none}.pause-actions{display:grid;grid-template-columns:1fr 1fr;gap:var(--ui-gap);margin-top:var(--ui-gap)}.pause-close{appearance:none;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--btn-text);width:100%;height:var(--ui-btn-h);padding:0 10px;border-radius:8px;font:18px system-ui,-apple-system,Segoe UI,Roboto,Arial}.theme-toggle{display:grid;grid-template-columns:1fr 1fr;gap:var(--ui-gap)}.theme-btn{appearance:none;border:1px solid var(--btn-border);background:transparent;color:var(--btn-text);width:100%;height:var(--ui-btn-h);padding:0 10px;border-radius:10px;font:19px system-ui,-apple-system,Segoe UI,Roboto,Arial}.theme-btn.is-active{background:var(--btn-bg);border-color:var(--panel-border)}#leaderboard-panel{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(360px,calc(100vw - 24px));height:min(640px,calc(100vh - 24px));--lb-item-h: 50px;--lb-gap: 10px;padding:18px 16px;background:var(--page-bg);border:none;border-radius:10px;box-sizing:border-box;color:var(--panel-text);font:14px system-ui,-apple-system,Segoe UI,Roboto,Arial;display:none;z-index:13;flex-direction:column;min-height:520px;max-height:720px}#leaderboard-panel.is-open{display:flex}.leaderboard-title{font-size:20px;font-weight:600;text-align:center;margin:0 0 14px;flex-shrink:0}.leaderboard-content{display:flex;flex-direction:column;gap:var(--lb-gap);overflow-y:auto;overscroll-behavior:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch;padding-right:6px;flex:1 1 auto;justify-content:flex-start;height:calc(5 * (var(--lb-item-h) + var(--lb-gap)) + .45 * var(--lb-item-h));max-height:calc(5 * (var(--lb-item-h) + var(--lb-gap)) + .45 * var(--lb-item-h))}.leaderboard-content.is-loading{justify-content:center;align-items:center}.leaderboard-content::-webkit-scrollbar{width:8px}.leaderboard-content::-webkit-scrollbar-track{background:var(--btn-bg)}.leaderboard-content::-webkit-scrollbar-thumb{background:var(--btn-border)}.leaderboard-content::-webkit-scrollbar-thumb:hover{background:var(--panel-text)}.leaderboard-item,.player-stats-item{display:flex;align-items:center;gap:10px;padding:0 12px;height:var(--lb-item-h);margin-bottom:0;background:transparent;border:3px solid var(--panel-border);border-radius:14px;flex-shrink:0}.leaderboard-item:last-child{margin-bottom:0}.leaderboard-left{display:flex;align-items:center;gap:6px;flex:0 0 auto}.leaderboard-rank{font-weight:600;font-size:16px;min-width:22px;text-align:right}.leaderboard-avatar{width:34px;height:34px;border-radius:999px;overflow:hidden;flex:0 0 34px;background:#00000047;box-shadow:inset 0 0 0 2px #ffffff14}.leaderboard-avatar.is-empty{background:#00000059;box-shadow:inset 0 0 0 2px #0000002e}.leaderboard-avatar>img{width:100%;height:100%;display:block;object-fit:cover}.leaderboard-info{flex:1;min-width:0}.leaderboard-name{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.leaderboard-score{font-size:16px;font-weight:600;min-width:60px;text-align:right}.player-stats-title{font-size:16px;font-weight:600;margin:0 0 12px}.player-stats-container,.player-stats-item{margin-bottom:0}.leaderboard-auth-btn{width:100%;margin-top:0;margin-bottom:0}.leaderboard-bottom{margin-top:auto;display:flex;flex-direction:column;gap:var(--ui-gap);flex-shrink:0;height:190px}.leaderboard-actions{margin-top:0;display:grid;grid-template-columns:1fr 1fr;gap:var(--ui-gap);padding-top:0}.leaderboard-btn{appearance:none;border:1px solid var(--btn-border);background:var(--btn-bg);color:var(--btn-text);height:var(--ui-btn-h);padding:0;border-radius:14px;font:600 20px system-ui,-apple-system,Segoe UI,Roboto,Arial}@media(hover:hover){.leaderboard-btn:hover{border-color:var(--panel-border)}}.leaderboard-btn:active{border-color:var(--panel-border)}.leaderboard-btn:focus-visible{outline:2px solid var(--panel-border);outline-offset:2px}.leaderboard-btn:disabled,.leaderboard-btn[aria-disabled=true]{opacity:.6}.leaderboard-empty{text-align:center;padding:24px;opacity:.7;font-size:14px}