:root{color-scheme:dark;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#102c28;color:#eff5df;--lime:#c3f56a;--muted:#a4b9a6}*{box-sizing:border-box}body{margin:0;height:100dvh;display:flex;flex-direction:column;overflow:hidden;background:radial-gradient(ellipse at 12% 10%,#254c38,transparent 60%),#102c28}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit;background:#28463c;border:1px solid #4b6653;border-radius:12px;min-height:44px;padding:8px 16px;font-weight:700}button:hover{filter:brightness(1.13)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #ffbb77;outline-offset:3px}[hidden]{display:none!important}header{height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 12px;background:#0b211dcc;border-bottom:1px solid #375444;font-size:12px;gap:8px}header button,header a{min-height:36px;padding:6px 10px;color:inherit;text-decoration:none;border:0;background:none}header b{letter-spacing:1px}header b span{font-weight:400;color:#adc3a7}main{flex:1;min-height:0;position:relative;overflow:auto}.home{min-height:100%;max-width:1000px;margin:auto;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center;padding:32px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:2px;color:var(--lime)}h1{font-size:clamp(36px,5vw,65px);line-height:1.05;letter-spacing:-2px;margin:16px 0}p{line-height:1.6;color:var(--muted)}.hero-art{height:98px;display:flex;align-items:center;padding-left:12px;position:relative}.hero-art i{display:block;background:var(--lime);width:42px;height:42px;border-radius:14px;margin-left:-5px;transform:translateY(18px);box-shadow:inset 0 -7px #7faf45}.hero-art i:nth-child(2){transform:translateY(0)}.hero-art i:nth-child(3){transform:translateY(-18px)}.hero-art i:nth-child(4){transform:translateY(-18px)}.hero-art i.head{transform:translateY(-18px);font-style:normal;color:#193224;font-size:27px;text-align:center;border-radius:14px 20px 20px 14px}.hero-art em{color:#ff9e76;font-size:52px;margin-left:30px;font-style:normal}.record{color:var(--muted);font-size:12px;letter-spacing:1px;margin-top:24px}.record strong{color:var(--lime);font-size:26px;margin:0 8px}.settings{background:#19372e;border:1px solid #466046;border-radius:24px;padding:26px;box-shadow:0 20px 65px #001c2444}fieldset{padding:0;border:0;margin:20px 0}legend,.field{font-size:13px;font-weight:650}.choices{display:flex;gap:10px;margin-top:12px}.choices label{flex:1;position:relative}.choices input{position:absolute;opacity:0}.choices span{display:block;border:1px solid #546b50;border-radius:12px;padding:14px 10px;cursor:pointer}.choices small{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:6px}.choices input:checked+span{background:#c3f51f15;border-color:var(--lime);color:var(--lime)}.choices input:focus-visible+span{outline:3px solid #ffbb77}.field{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:12px 0}select,input[type=text]{background:#0f2b24;border:1px solid #506a50;border-radius:9px;color:inherit;padding:10px;min-height:44px;min-width:0;width:65%}.check{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted);min-height:44px}.check input{accent-color:var(--lime);width:20px;height:20px}.primary{background:var(--lime);color:#183321;width:100%;border:0;padding:16px;margin-top:12px;font-size:17px}.primary span{float:right}.hint{font-size:11px;margin:14px 0 0}#game{height:100%;display:flex;flex-direction:column;padding:8px;gap:6px;user-select:none;-webkit-user-select:none}#arena{flex:1;min-height:0;display:flex;gap:8px}.player{--accent:#c3f56a;flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;background:#0c241f;border:1px solid #416047;border-radius:16px;overflow:hidden;position:relative}.player-top{height:36px;flex-shrink:0;display:flex;justify-content:space-between;align-items:center;padding:0 12px;font-size:12px}.player-top b{color:var(--accent)}.board-wrap{flex:1;min-height:0;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:none}canvas{display:block;touch-action:none}.controls{display:flex;justify-content:center;gap:8px;padding:5px;flex-shrink:0}.controls button{min-width:48px;min-height:44px;padding:6px 12px;color:var(--accent);touch-action:none;font-size:22px}.player-overlay{position:absolute;inset:36px 0 54px;display:flex;align-items:center;justify-content:center;pointer-events:none;text-align:center}.player-overlay span{padding:15px 22px;background:#102c28ed;border:1px solid #647a50;border-radius:16px;font-weight:800;font-size:22px;white-space:pre-line}.gamebar{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px;flex-shrink:0}.gamebar button{font-size:12px}.duel{flex-direction:column}.duel .player:first-child{transform:rotate(180deg)}.results{max-width:480px;margin:40px auto;padding:24px;text-align:center}.results h2{font-size:34px}.results ol{padding:0;list-style:none}.results li{display:flex;justify-content:space-between;padding:18px;background:#244237;margin:8px 0;border-radius:12px}.results>button{margin-top:12px}aside{flex-shrink:0;text-align:center;padding:10px;font-size:10px;color:#adc0a4;background:#071d19;border-top:1px solid #3b5341;letter-spacing:1px}#toast{position:fixed;bottom:60px;left:50%;transform:translateX(-50%);background:#eff5df;color:#163426;padding:12px;border-radius:10px;display:none;z-index:9;max-width:90%;text-align:center}@media(max-width:680px){.home{grid-template-columns:1fr;gap:20px;padding:22px;max-width:440px}.intro .hero-art{height:65px}.intro h1{font-size:38px}.intro>p:not(.eyebrow){font-size:13px}.record{margin-top:8px}.settings{padding:20px}header b span{display:none}.class-mode .controls{gap:2px;flex-wrap:wrap}.class-mode .controls button{min-width:44px;padding:4px}.class-mode .player-top{padding:0 5px;font-size:10px}}@media(max-height:500px){.home{padding:16px;gap:22px;grid-template-columns:1fr 1fr;max-width:900px}.hero-art{display:none}.home h1{font-size:32px}.settings{padding:14px}fieldset{margin:8px 0}.choices span{padding:8px}.hint{margin-top:6px}.duel{flex-direction:column}.duel .controls{position:absolute;right:8px;top:40px;width:104px;flex-wrap:wrap;gap:4px}.duel .controls button{min-width:44px;padding:4px}.duel .board-wrap{margin-right:112px}.duel .player-overlay{bottom:0;right:112px}.controls{padding:2px}.player{border-radius:10px}.gamebar button{min-height:36px}.results{margin:8px auto}.results h2{margin:10px}}@media(prefers-reduced-motion:no-preference){.hero-art em{animation:float 2s ease-in-out infinite}@keyframes float{50%{transform:translateY(-8px) rotate(12deg)}}}