:root{--ink:#173f3a;--green:#267663;--paper:#fffbed;--gold:#be8041;--line:#b7c8bb;--accent:#f1bd72;font-family:'IBM Plex Sans Thai',sans-serif;color:var(--ink);background:#d3e7e1}*{box-sizing:border-box}body{margin:0}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);color:var(--ink);background:var(--paper);border-radius:14px;min-height:44px;padding:9px 15px}button:disabled{opacity:.4;cursor:default}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #9b4e22;outline-offset:4px}[hidden]{display:none!important}#game{position:relative;min-height:100svh;overflow:hidden}#world{position:absolute;inset:0;background:linear-gradient(#b9ddd9,#f8edd4)}#world canvas{display:block;width:100%;height:100%}.grain{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 50% 45%,transparent 35%,#7a8e821a)}header{position:relative;display:flex;justify-content:space-between;align-items:center;padding:max(20px,env(safe-area-inset-top)) 28px 0;z-index:3}.brand{display:flex;align-items:center;gap:10px}.brand b{font-size:29px;color:var(--paper);background:var(--green);width:40px;height:44px;text-align:center;border-radius:12px 12px 15px 3px}.brand span{font-size:20px;font-weight:600;line-height:1.2}.brand small{display:block;font-size:10px;font-weight:400;letter-spacing:.05em}.icon{width:44px;padding:0;font-size:20px;box-shadow:0 3px 0 #a3baaa}.route{position:absolute;top:25px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;z-index:2}.dot{border:1px solid #90ada4;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-family:'Space Grotesk';background:#edf4e4}.dot.current{background:var(--green);color:white;box-shadow:0 0 0 4px #ffffff70}.dot.done{background:#f1bf76}.route i{width:30px;border-top:2px dotted #7faaa0}.objective{position:absolute;top:100px;left:32px;max-width:330px;z-index:2}.objective small{letter-spacing:.1em;font-size:11px;color:#4b7268}.objective h1{font-size:23px;margin:5px 0 6px}.objective p{font-size:13px;max-width:310px;margin:6px 0;line-height:1.6}.equation{font-family:'Space Grotesk',sans-serif;font-size:38px;font-weight:600;background:#fffbeded;border:1px solid #fff;box-shadow:0 6px 20px #3051470d;border-radius:18px;padding:8px 24px;display:inline-block;margin-top:8px}.objective .legend{font-size:11px;color:#55726b}.camera-tools{position:absolute;right:28px;top:85px;z-index:2}.camera-tools button{font-size:12px;background:#fffbedc9}.play{position:absolute;bottom:max(20px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:min(630px,calc(100% - 32px));z-index:3}.feedback{display:flex;align-items:center;gap:12px;justify-content:space-between;background:#fffbedf2;border-radius:13px;padding:6px 9px 6px 15px;box-shadow:0 3px 14px #2c4c4120}.feedback p{font-size:13px;margin:0;line-height:1.4;flex:1}.hint{font-size:12px;white-space:nowrap;border-style:dashed;background:#faeed5;padding:8px}.hand-label{display:flex;justify-content:space-between;align-items:center;font-size:11px;margin:7px 4px;color:#335b50}.hand-label button{min-height:30px;padding:2px 10px;font-size:11px;background:#edf2e4cc}.cards{display:flex;gap:12px;justify-content:center}.card{position:relative;min-height:97px;width:130px;border-radius:15px;border:2px solid #fff9e8;background:linear-gradient(140deg,#fffdf3,#f3e6cc);box-shadow:0 5px 0 #afbaa5,0 8px 20px #183c3520;transition:transform .16s,box-shadow .16s;padding:10px 7px}.card:hover{transform:translateY(-5px)}.card:active{transform:translateY(3px);box-shadow:0 1px 0 #afbaa5}.card .symbol{font-family:'Space Grotesk';font-size:31px;line-height:1;display:block;font-weight:600}.card small{font-size:10px;display:block;margin-top:7px}.card.division{background:linear-gradient(130deg,#eaf3ec,#c6e3d6);border-color:#f4fff5}.card:before{content:'✧';position:absolute;top:5px;left:8px;font-size:12px;color:#a68b5a}.hint-panel{background:#fff5da;border:1px dashed var(--gold);border-radius:12px;padding:12px;margin-top:7px;font-size:13px}.primary{background:var(--green);color:#fff9e8;border-color:#397866;box-shadow:0 4px 0 #175443;min-height:48px;font-weight:600}.primary:active{transform:translateY(2px);box-shadow:0 2px 0 #175443}.cross{display:block;width:100%;margin-top:12px}.welcome{position:absolute;inset:100px 0 20px;display:flex;align-items:center;padding-left:8vw;z-index:3;pointer-events:none}.ticket{pointer-events:auto;width:330px;padding:26px 30px;background:var(--paper);border:1px solid white;border-radius:24px;box-shadow:0 15px 45px #254c3829;position:relative}.eyebrow{font-size:9px;letter-spacing:.16em;font-weight:600}.ticket h1{font-size:40px;line-height:1.2;margin:16px 0}.ticket em{font-style:normal;color:var(--green)}.ticket p{font-size:14px;line-height:1.65;margin:0 0 23px}.ticket-mark{position:absolute;right:28px;top:45px;color:#bb8450;font-size:35px}.ticket-foot{border-top:1px dashed #b8b89e;border-bottom:1px dashed #b8b89e;padding:13px 0;margin-bottom:18px;font-size:10px;display:flex;justify-content:space-between}.ticket .primary{width:100%}.ticket>small{display:block;text-align:center;font-size:10px;margin-top:13px;color:#6c8175}#verify{margin-top:12px;background:var(--paper);border-radius:18px;padding:12px 18px}#verify label{display:block;font-size:12px;margin-bottom:8px}.verify-row{display:flex;align-items:center;gap:12px}.verify-row input{width:80px;min-width:0;font-size:23px;text-align:center;background:#eef2e8;border:1px solid var(--line);border-radius:10px;height:46px}.verify-row .primary{margin-left:auto}.result{position:relative;margin:8vh auto 30px;padding:28px;width:min(420px,calc(100% - 36px));text-align:center;background:var(--paper);border:1px solid white;border-radius:24px;box-shadow:0 18px 50px #3455492b;z-index:3}.result h1{font-size:24px}.result p{font-size:14px;line-height:1.6}.result .fine{font-size:11px;color:#687c70}.result a{display:block;margin-top:20px;font-size:13px}.medal{font-size:52px;background:#f6d38e;color:#846323;width:90px;height:90px;border-radius:50%;margin:18px auto 8px;border:6px double #e5b363;box-shadow:0 0 0 8px #f6e3b0}.result:not([hidden]) .medal{animation:stamp .6s ease-out}@keyframes stamp{from{transform:scale(1.4) rotate(-15deg);opacity:0}to{transform:scale(1);opacity:1}}dialog{width:min(350px,calc(100% - 32px));background:var(--paper);border:1px solid white;border-radius:22px;color:var(--ink);padding:25px}dialog::backdrop{background:#173d3666;backdrop-filter:blur(3px)}dialog h2{font-size:21px}dialog button{width:100%;margin-bottom:10px}dialog p{font-size:12px;line-height:1.6}dialog a{display:block;text-align:center;margin-top:18px;font-size:13px}.gpu{position:absolute;inset:30% 15% auto;background:var(--paper);padding:25px;border-radius:20px;z-index:6}.gpu h2{margin-top:0}.gpu p{font-size:13px}@media(max-width:700px){header{padding:15px 16px 0}.brand span{font-size:16px}.brand small{font-size:8px}.brand b{width:32px;height:37px;font-size:24px}.route{top:70px;gap:6px}.dot{width:24px;height:24px;font-size:11px}.route i{width:25px}.objective{top:106px;left:16px;right:16px;max-width:none;text-align:center}.objective h1{font-size:18px;margin:3px 0}.objective small{font-size:9px}.objective p{font-size:11px;margin:3px auto;max-width:290px}.equation{font-size:28px;padding:4px 20px;margin-top:5px}.objective .legend{font-size:9px}.camera-tools{top:65px;right:14px}.camera-tools button{font-size:17px;min-height:34px;padding:2px 8px}.camera-tools span{display:none}.play{bottom:max(16px,env(safe-area-inset-bottom));width:calc(100% - 24px)}.feedback p{font-size:11px}.feedback{padding:5px 7px 5px 11px;gap:6px}.hint{font-size:10px;min-height:40px;padding:6px}.cards{gap:8px}.card{width:96px;min-height:81px;padding:11px 5px 7px}.card .symbol{font-size:26px}.card small{font-size:9px}.welcome{inset:85px 0 15px;padding:0;align-items:flex-end;justify-content:center}.ticket{width:min(340px,calc(100% - 32px));padding:20px 24px}.ticket h1{font-size:32px;margin:12px 0}.ticket p{font-size:12px;margin-bottom:14px}.ticket-foot{padding:10px 0;margin-bottom:14px}.ticket-mark{top:37px}.result{margin-top:75px}.hand-label{margin:5px 3px}.hint-panel{font-size:12px;padding:8px}}@media(max-height:580px){.objective{top:75px;text-align:left;max-width:270px}.objective p{display:none}.objective h1{font-size:17px}.equation{font-size:25px}.play{left:auto;right:16px;transform:none;width:min(420px,52%);bottom:12px}.welcome{top:80px;align-items:center}.ticket{padding:15px 22px;width:300px}.ticket h1{font-size:28px}.ticket p{font-size:11px;margin-bottom:10px}.ticket-foot{display:none}.result{margin:15px auto;padding:18px}.medal{width:52px;height:52px;font-size:27px;margin:8px auto}.result h1{font-size:20px;margin:12px 0}.result p{font-size:12px}.route{top:20px}.card{min-height:68px}.card small{margin-top:3px}.hand-label{margin:3px}.feedback{padding:5px 8px}.feedback p{font-size:11px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}

@media(max-width:700px){.objective{filter:drop-shadow(0 1px 6px #e2eee1)}.objective h1,.objective>small,.objective>p{background:#d7e8dbb3;border-radius:8px;width:fit-content;margin-left:auto;margin-right:auto;padding-inline:7px}.verify-row{gap:8px}.verify-row input{width:60px}.verify-row .primary{font-size:12px;padding-inline:12px}}