:root{--paper:#f5f4ef;--ink:#1d302d;--muted:#64716b;--accent:#274f47;--line:#dadfd5;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}button,input,select{font:inherit;color:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.48;cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #1d72bb;outline-offset:3px}[hidden]{display:none!important}.home{max-width:860px;margin:auto;padding:0 32px 28px}header{display:flex;align-items:center;justify-content:space-between;height:100px}.logo{font-size:29px;font-weight:850;letter-spacing:-1.4px;text-decoration:none}.logo span{color:#b66333;margin-left:5px}.icon-button{display:grid;place-items:center;width:44px;height:44px;background:transparent;border:1px solid #cdd5c9;border-radius:50%;font-size:22px}.eyebrow{font:10px/1.5 ui-monospace,monospace;letter-spacing:1.5px;color:var(--muted)}.welcome{padding:28px 0 24px}.welcome h1{font-size:clamp(34px,5vw,56px);letter-spacing:-2px;font-weight:650;margin:12px 0 8px;line-height:1.05}.welcome p{font-size:17px;color:var(--muted);margin:0}.mode-switch{display:flex;background:#e5e8df;border-radius:24px;padding:4px;width:max-content;max-width:100%;gap:4px;margin:0 0 20px}.mode-switch button{min-height:38px;padding:8px 18px;border:0;border-radius:20px;background:transparent;font-size:13px}.mode-switch button[aria-pressed=true]{background:var(--paper);box-shadow:0 1px 3px #15341b16}.worlds{display:grid;grid-template-columns:1fr 1fr;gap:16px}.world-card{position:relative;display:flex;align-items:end;text-align:left;min-height:190px;border:0;border-radius:22px;padding:24px;overflow:hidden;background:var(--world-color);transition:transform .2s}.world-card:hover{transform:translateY(-3px)}.world-card:active{transform:scale(.98)}.world-card h2{font-size:25px;line-height:1.1;letter-spacing:-.8px;margin:0 0 5px;font-weight:700}.world-card p{margin:0;font-size:13px}.world-card .world-mark{position:absolute;right:22px;top:16px;font-size:80px;line-height:1;font-weight:300;opacity:.7;transform:rotate(-12deg)}.world-card .world-mark::after{content:'';position:absolute;width:100px;height:100px;border:1px solid currentColor;border-radius:50%;left:-18px;top:0;opacity:.2}.world-card .best{position:absolute;left:24px;top:22px;font:10px ui-monospace,monospace;letter-spacing:1px}.world-card .arrow{position:absolute;right:24px;bottom:24px;font-size:24px}.mode-note{color:var(--muted);font-size:12px;text-align:center;margin:18px 0}.scores-link{display:flex;gap:24px;align-items:center;justify-content:center;border:0;background:none;margin:0 auto;min-height:44px;font-weight:600;font-size:15px}.game{max-width:640px;margin:auto;padding:0 18px;height:calc(100svh - env(safe-area-inset-top) - env(safe-area-inset-bottom));display:flex;flex-direction:column}.game-header{height:80px;flex-shrink:0;gap:14px}.game-title{margin-right:auto;display:flex;flex-direction:column;gap:4px}.game-title>span{font-size:20px;letter-spacing:-.6px;font-weight:650}.game-title small,.score small{font:9px ui-monospace,monospace;letter-spacing:1.2px;color:var(--muted)}.score{text-align:right;display:flex;flex-direction:column;gap:3px}.score strong{font-size:29px;letter-spacing:-1px;font-variant-numeric:tabular-nums}.track{position:relative;flex:1;min-height:260px;border-radius:18px;overflow:hidden;background:#abc4c7}canvas{display:block;width:100%;height:100%;touch-action:none}.question{position:absolute;top:14px;left:14px;right:14px;background:#fcfcf5f5;border-radius:14px;padding:16px 18px 12px;box-shadow:0 2px 8px #203b3212}.question-meta{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:#54645c}.question-meta span:last-child{font-variant-numeric:tabular-nums;white-space:nowrap}.question-content{display:flex;align-items:center;gap:12px;min-height:58px;justify-content:center}.question h1{font-size:clamp(22px,4vw,36px);letter-spacing:-1px;line-height:1.15;margin:10px 0;text-align:center}.question #flag{font-size:48px;line-height:1}.question-content:has(#flag:not([hidden])) h1{font-size:23px}.time-line{height:3px;background:#dfe4dc;border-radius:4px;overflow:hidden;margin-top:7px}.time-line>span{display:block;height:100%;background:var(--accent);transform-origin:left}.audio-row{display:flex;align-items:center;gap:10px}.audio-row button{font-size:12px;min-height:44px;padding:8px 12px;background:var(--ink);color:white;border:0;border-radius:20px;white-space:nowrap}.audio-row small{font-size:10px;color:var(--muted)}.track-bottom{position:absolute;left:14px;right:14px;bottom:12px;display:flex;justify-content:space-between;color:#fff;font:9px ui-monospace,monospace;letter-spacing:.5px;text-shadow:0 1px 4px #000;background:#243a475c;border-radius:5px;padding:7px 9px;pointer-events:none}.answer-area{flex-shrink:0;padding:12px 0 16px}.answer-area>p{font-size:12px;color:var(--muted);text-align:center;margin:0 0 10px}.answers{display:grid;grid-template-columns:repeat(var(--choices,3),1fr);gap:8px}.answer{display:flex;align-items:center;justify-content:center;min-width:0;height:74px;padding:10px;border:1px solid #c8d1c6;border-bottom:4px solid #bdc8bc;background:#fffef8;border-radius:14px;font-size:20px;font-weight:650;letter-spacing:-.5px;line-height:1.1;overflow-wrap:anywhere}.answer.long{font-size:14px;letter-spacing:-.2px}.answer[aria-pressed=true]{color:#fff;background:var(--accent);border-color:#173c33;box-shadow:0 0 0 2px var(--paper),0 0 0 4px var(--accent)}.answer.correct{background:#287851;color:white}.answer.wrong{background:#b84733;color:white}.feedback{position:absolute;left:8px;right:8px;top:49%;text-align:center;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s}.feedback.show{opacity:1;transform:translateY(0)}.feedback span{display:inline-block;border-radius:30px;background:#fffce7;color:#1f4633;padding:12px 18px;box-shadow:0 2px 0 #0002;font-size:17px;font-weight:750}.feedback.bad span{background:#be432d;color:white}.sheet{border:0;width:min(440px,calc(100% - 32px));max-height:calc(100svh - 40px);overflow:auto;border-radius:24px;background:var(--paper);color:var(--ink);padding:32px;box-shadow:0 18px 80px #192e3933}.sheet::backdrop{background:#1f353870;backdrop-filter:blur(7px)}.sheet h2{font-size:34px;line-height:1.08;letter-spacing:-1.5px;font-weight:650;margin:20px 0}.sheet p{font-size:15px;line-height:1.5;color:var(--muted)}.sheet .close{float:right;margin:-14px -14px 10px 12px}.primary{border:0;border-radius:14px;background:var(--accent);color:white;display:block;width:100%;min-height:52px;padding:14px 20px;font-size:16px;font-weight:650}.plain{display:block;min-height:44px;margin:6px auto;background:none;border:0;font-size:14px}.sheet small{display:block;color:var(--muted);font-size:11px;line-height:1.5;text-align:center}.sheet label{display:block;font-size:14px;font-weight:550;margin:18px 0}.sheet input:not([type=checkbox]),.sheet select{width:100%;min-height:48px;border:1px solid #cbd4c7;border-radius:12px;background:#fffef7;padding:12px;font-size:16px;margin-top:8px}.sheet input[type=range]{padding:0;accent-color:var(--accent)}.sheet .check{display:flex;align-items:center;justify-content:space-between;min-height:44px}.check input{width:21px;height:21px;accent-color:var(--accent)}.sheet .setting-note{font-size:13px}#result-stats{font-size:27px;font-weight:700;text-align:center;border-top:1px solid var(--line);padding:16px 0;margin:8px 0 12px}#result-stats small{font-size:12px;margin-top:5px;font-weight:400}.board-filters{display:flex;gap:8px;margin-bottom:16px}.board-filters select{margin:0;min-width:0;font-size:14px}.sheet .mode-switch{width:100%}.sheet .mode-switch button{flex:1}.sheet ol{padding:0;list-style:none}.sheet li{display:flex;align-items:center;padding:13px 0;border-bottom:1px solid var(--line);gap:14px}.rank{font:12px ui-monospace,monospace;color:var(--muted)}.rank-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rank-score{font-weight:700}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:90%;border-radius:12px;background:var(--ink);color:#fff;padding:12px 18px;font-size:13px;z-index:10;pointer-events:none}#toast:empty{display:none}html[data-playing=true],html[data-playing=true] body{overflow:hidden}
@media(max-width:560px){.home{padding:0 20px 16px}header{height:76px}.welcome{padding:20px 0}.welcome h1{font-size:37px;letter-spacing:-1.7px}.eyebrow{font-size:9px}.welcome p{font-size:15px}.mode-switch{margin-bottom:16px}.worlds{gap:12px}.world-card{min-height:165px;padding:18px;border-radius:20px}.world-card h2{font-size:21px;margin-bottom:5px}.world-card p{font-size:11px}.world-card .world-mark{font-size:55px;top:18px;right:17px}.world-card .world-mark::after{width:66px;height:66px;left:-11px}.world-card .best{left:18px;top:15px;font-size:8px}.world-card .arrow{font-size:18px;right:18px;bottom:18px}.mode-note{font-size:11px;line-height:1.5;margin:14px 0 4px}.game{padding:0 12px}.game-header{height:68px}.game-title>span{font-size:18px}.question{left:12px;right:12px;top:12px;padding:12px 14px 10px}.question h1{font-size:28px}.question-content{min-height:49px}.question-meta{font-size:10px}.question-content:has(#flag:not([hidden])) h1{font-size:20px}.question #flag{font-size:42px}.answer-area{padding:12px 0}.answer-area p{font-size:11px;margin-bottom:10px}.answer{height:72px;font-size:19px;border-radius:12px;padding:8px}.answer.long{font-size:13px}.track{border-radius:16px}.sheet{padding:28px}.sheet h2{font-size:32px}.game .score strong{font-size:26px}}
@media(max-height:700px) and (max-width:560px){header{height:64px}.welcome{padding:10px 0 16px}.welcome h1{font-size:32px;margin-top:6px}.welcome .eyebrow{display:none}.world-card{min-height:137px}.world-card .world-mark{font-size:45px;top:12px}.world-card .world-mark::after{width:54px;height:54px}.world-card h2{font-size:19px}.world-card .best{font-size:7px}.mode-note{font-size:10px}.game-header{height:60px}.question h1{font-size:24px}.question-meta{font-size:9px}.audio-row small{font-size:9px}.answer{height:68px}.answer-area{padding:10px 0}.track{min-height:220px}}
@media(max-height:480px) and (min-width:600px){.game{max-width:100%;padding:0 18px;display:grid;grid-template-columns:1fr 240px;grid-template-rows:54px 1fr;gap:0 16px}.game-header{height:54px;grid-column:1/-1}.track{min-height:0;margin-bottom:12px}.answer-area{display:flex;flex-direction:column;justify-content:center}.answers{grid-template-columns:1fr}.answer{height:60px}.question{max-width:340px;padding:8px 12px;top:8px}.question h1{font-size:22px;margin:6px 0}.question-content{min-height:32px}.audio-row button{min-height:34px}.track-bottom{font-size:8px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}html[data-reduced=true] *{transition:none!important;animation:none!important}