*{box-sizing:border-box}html,body,#root{margin:0;width:100%;min-height:100%;font-family:Trebuchet MS,Segoe UI,sans-serif;color:#25483c}body{background:#517b4c}button,select{font:inherit;touch-action:manipulation}button{cursor:pointer;user-select:none;border:2px solid #c7a363;border-radius:10px;background:#fff8e6;color:#304c42;font-weight:700;min-height:40px;box-shadow:0 3px #a58248}button:active{transform:translateY(2px);box-shadow:none}button:disabled{cursor:default;opacity:.58}button:focus-visible,select:focus-visible{outline:4px solid #1383b4;outline-offset:2px}.app{height:100dvh;min-height:680px;position:relative;overflow:hidden;background:linear-gradient(#f7e8b400,#69874d22),url(assets/circuito.png) center/cover}header{position:absolute;top:1.8%;left:3%;right:3%;height:13%;text-align:center;color:#234d40;text-shadow:0 2px 3px #fff8dd,0 0 12px #fff8dd}h1{font-size:clamp(25px,3vw,44px);margin:4px 0}header p{margin:3px;font-weight:700}.brand{font-size:11px;font-weight:700;letter-spacing:3px}.intro{position:absolute;top:15%;height:34%;left:12%;right:12%;display:flex;align-items:center;justify-content:center;gap:4%}.intro img{height:117%;width:52%;object-fit:contain;filter:drop-shadow(0 10px 10px #4d592f44)}.intro-copy{color:#fff9dd;background:#285943df;border:3px solid #e0bd74;border-radius:22px;padding:18px 30px;box-shadow:0 6px 15px #3a4f3444}.intro-copy>span{font-size:11px;letter-spacing:2px}.intro-copy h2{font-size:clamp(22px,3vw,40px);margin:10px 0}.intro-copy p{font-size:14px;margin:5px 0}.setup{position:absolute;inset:51% 4% 8%;background:#fff7e4f2;border:3px solid #d2b174;border-radius:22px;padding:14px 22px;display:flex;flex-direction:column;justify-content:space-around;text-align:center;box-shadow:0 8px 25px #3b4c3555}.setup-fields{display:grid;grid-template-columns:1.7fr .8fr 1.2fr 1.2fr .85fr;gap:16px;text-align:left}label,.label{display:block;font-size:14px;font-weight:700}select{display:block;width:100%;margin-top:6px;min-height:44px;border:2px solid #b89e72;border-radius:10px;background:#fffdf4;color:#294d40;padding:6px}.segmented{display:flex;gap:7px;margin-top:6px}.segmented button{flex:1;min-height:44px}.segmented button[aria-pressed=true]{background:#2e7451;color:#fff;border-color:#215138}.course-note{font-size:15px;margin:8px 0}.instructions{display:flex;justify-content:center;gap:28px;font-weight:700;font-size:16px}.start{background:linear-gradient(#4c8d5a,#2d6845);border-color:#d2ad60;color:#fffbe7;min-height:50px;font-size:21px;padding:8px 30px}.setup .start{width:min(520px,100%);align-self:center}.setup small{font-size:12px}footer{position:absolute;bottom:1%;height:5%;left:2%;right:2%;display:flex;align-items:center;justify-content:center;gap:12px}footer button{min-height:34px;font-size:12px;padding:5px 15px;background:#244d3eea;color:#fff6dd;box-shadow:none}.race{position:absolute;top:16%;height:33%;left:3%;right:3%;display:flex;flex-direction:column;border:4px solid #d5b374;border-radius:18px;background:linear-gradient(#d5b786b0,#d5b786f0);box-shadow:0 5px 15px #344d3566;padding:4px 65px 4px 12px;isolation:isolate}.lane{position:relative;flex:1;min-height:0;display:flex;align-items:center;border-bottom:2px dashed #fff5d6a0}.lane:last-child{border:0}.rider-0{--accent:#e3aa3c;--soft:#fff0bb}.rider-1{--accent:#4ba4d0;--soft:#dcf0ff}.rider-2{--accent:#be83c0;--soft:#f2e0f5}.lane-label{width:115px;flex-shrink:0;display:flex;flex-direction:column;background:var(--soft);border:2px solid var(--accent);border-radius:9px;padding:6px 10px;gap:4px;font-size:13px;z-index:2}.lane-label span{font-size:12px}.runway{flex:1;height:100%;position:relative}.runner{position:absolute;bottom:0;height:116%;width:22%;transition:left .8s cubic-bezier(.22,.61,.36,1);display:flex;align-items:flex-end;justify-content:center}.runner img{width:100%;height:100%;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 4px 2px #72532955)}.rider-number{position:absolute;bottom:6%;right:15%;border:2px solid white;border-radius:50%;background:var(--accent);color:#18362b;font-weight:700;font-size:12px;min-width:24px;height:24px;text-align:center;padding:2px}.finish{position:absolute;right:16px;top:4px;bottom:4px;width:32px;background:conic-gradient(#f4edda 25%,#344b3d 0 50%,#f4edda 0 75%,#344b3d 0) 0 0/20px 20px;z-index:-1;border-radius:4px}.finish span{position:absolute;top:-22px;left:-9px;font-size:12px;font-weight:700;background:#fff7df;border:2px solid #b49059;padding:2px 5px;border-radius:5px}.players-1 .runner{height:112%;width:27%}.players-2 .runner{height:120%;width:23%}.boards{position:absolute;inset:51% 2% 8%;display:grid;gap:16px}.board{position:relative;min-width:0;background:#fff8eaf7;border:3px solid var(--accent);border-radius:18px;padding:8px 12px;display:flex;flex-direction:column;box-shadow:0 6px 18px #35472e66}.board-top{display:flex;align-items:center;justify-content:space-between;gap:8px;height:32px;flex-shrink:0}.board-top strong{font-size:15px}.board-top strong span{margin-left:12px;color:#956812}.board-top>div{display:flex;gap:7px}.board-top button{min-height:30px;min-width:36px;font-size:17px;box-shadow:none}.challenge{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:54px;padding:6px 0;font-variant-numeric:tabular-nums}.challenge>span{font-weight:800;font-size:clamp(22px,2.5vw,34px);white-space:nowrap}.challenge b{color:#99762c}.challenge output{min-width:26%;max-width:50%;font-size:clamp(23px,2.8vw,36px);font-weight:700;text-align:right;color:#286645;background:#eaf0dc;border:2px solid #aab992;border-radius:9px;padding:3px 10px;overflow:hidden}.keypad{min-height:0;flex:1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:repeat(5,minmax(0,1fr));gap:5px}.keypad button{min-height:0;font-size:clamp(20px,2vw,28px);padding:0 4px;background:linear-gradient(#fffdf2,#eee2c3);box-shadow:0 2px #b29864}.keypad .submit{grid-column:1/-1;font-size:17px;background:linear-gradient(#4e8e59,#316f4a);color:#fffce6;border-color:#8fa56b}.feedback{font-size:11px;font-weight:700;text-align:center;min-height:19px;padding-top:5px;color:#3d744b}.feedback.retry{color:#b44e29}.players-1 .boards{left:25%;right:25%}.players-2 .boards{left:9%;right:9%}.players-3 .challenge>span{font-size:clamp(18px,2vw,28px)}.players-3 .challenge output{font-size:clamp(19px,2vw,29px);padding:3px 6px}.help-panel{position:absolute;inset:0;z-index:2;background:#fff8e9;border-radius:14px;display:flex;flex-direction:column;padding:12px}.help-panel h3{font-size:18px;margin:0 0 6px}.help-scroll{flex:1;overflow-y:auto;overscroll-behavior:contain;font-size:14px;padding-right:8px}.help-scroll p{margin:0 0 10px}.help-panel>button{flex-shrink:0;margin-top:8px;font-size:14px}.overlay{position:absolute;inset:0;z-index:5;background:#193d2daf;backdrop-filter:blur(5px)}.dialog{position:absolute;top:52%;left:15%;right:15%;border-radius:22px;border:4px solid #d2b174;background:#fff4dc;text-align:center;padding:18px}.dialog h2{margin:0 0 12px;font-size:30px}.dialog>div{display:flex;gap:20px;justify-content:center}.dialog button{padding:10px 22px}.gallop img{animation:gallop .2s ease-in-out 4}@keyframes gallop{50%{transform:translateY(-7px) rotate(-3deg)}}@media(max-width:700px){.app{min-height:780px}header{top:2%}.brand{font-size:9px;letter-spacing:1px}h1{font-size:27px;line-height:1.1}header p{font-size:13px}.intro{left:3%;right:3%;top:16%;height:33%;gap:0}.intro-copy{padding:13px;width:52%}.intro-copy>span{font-size:9px;letter-spacing:0}.intro-copy h2{font-size:23px}.intro-copy p{font-size:12px}.intro img{height:95%;width:52%}.setup{left:3%;right:3%;padding:8px 10px;bottom:9%}.setup-fields{grid-template-columns:1.2fr 1fr;gap:6px}.setup-fields label:last-child{grid-column:1/-1;display:flex;align-items:center;gap:10px}.setup-fields label:last-child select{margin:0;min-height:32px}label,.label{font-size:12px}select{font-size:12px;min-height:33px;margin-top:3px;padding:3px}.segmented{margin-top:3px}.segmented button{min-height:33px}.instructions{font-size:10px;gap:9px}.course-note{font-size:11px;margin:4px 0}.setup .start{min-height:40px;font-size:17px}.setup small{font-size:10px}footer{height:7%;flex-wrap:wrap;gap:5px}footer button{font-size:10px;padding:3px 8px;min-height:26px}.players-1 .boards{left:3%;right:3%;bottom:9%}.race{left:3%;right:3%;padding-left:8px;padding-right:40px}.lane-label{position:absolute;left:0;top:3px;width:auto;font-size:13px}.runway{width:100%}.players-1 .runner{width:45%;height:90%}.players-1 .runner{max-width:140px}.finish{right:7px;width:22px}.challenge>span{font-size:25px}.challenge output{font-size:28px}.dialog{left:3%;right:3%}.dialog h2{font-size:23px}.dialog button{padding:8px 13px;font-size:17px}.players-2:not(.menu),.players-3:not(.menu){min-width:750px}}@media(max-height:740px)and (min-width:701px){.board-top{height:27px}.board-top button{min-height:26px}.challenge{min-height:46px}.keypad{gap:4px}.keypad button{font-size:21px}.keypad .submit{font-size:15px}.setup{padding:10px 18px}.instructions{font-size:14px}.course-note{margin:5px 0}.setup small{font-size:11px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.boards{grid-template-rows:minmax(0,1fr)}.board{min-height:0}.setup-fields{grid-template-columns:1.6fr .7fr 1fr 1.1fr 1.1fr .8fr}.challenge{flex-wrap:wrap}.challenge>span{flex-shrink:0}.challenge output{margin-left:auto}.players-3 .challenge>span{font-size:clamp(16px,1.65vw,24px)}.players-3 .challenge output{font-size:clamp(18px,1.7vw,25px)}@media(max-width:700px){.setup-fields{grid-template-columns:1fr 1fr}.setup-fields label:last-child{grid-column:auto;display:block}.setup-fields label:last-child select{margin-top:3px;min-height:33px}}.opponent-picker{display:flex;align-items:center;justify-content:center;gap:12px}.opponent-picker select{width:min(340px,75%);margin:0}.with-bot .runner{height:112%;width:23%}@media(max-width:700px){.opponent-picker select{min-height:30px}.with-bot .runner{height:100%;width:43%}.with-bot .lane-label{font-size:11px;padding:3px 6px;z-index:0}.with-bot .lane-label span{font-size:10px}}.decimal-picker{display:flex;justify-content:center;align-items:center;gap:8px;font-size:13px}.decimal-picker input{width:20px;height:20px;accent-color:#316f4a;margin:0}.setup-fields{grid-template-columns:1.7fr 1fr 1.4fr 1fr}.intro img{height:116%;width:38%}.intro{gap:8%}.intro-copy{background:#236964eb}.start{background:linear-gradient(#389184,#226a5e)}.stalls{position:absolute;top:16%;height:33%;left:3%;right:3%;display:grid;gap:20px}.stall{position:relative;min-width:0;background:#eaddb8aa;border-radius:20px;border:3px solid var(--accent);box-shadow:0 4px 10px #573b2e55}.awning{position:absolute;top:0;left:0;right:0;text-align:center;padding:5px;background:var(--soft);border-radius:15px 15px 0 0;font-size:18px;font-weight:700;border-bottom:3px solid var(--accent)}.stall img{position:absolute;right:1%;bottom:10%;height:85%;width:50%;object-fit:contain;filter:drop-shadow(0 5px 5px #3b4a3b44)}.parcel{position:absolute;left:4%;top:23%;width:48%;bottom:19%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fff8e1e8;border:2px solid #c7aa6c;border-radius:18px;padding:10px;text-align:center;gap:5px}.parcel>span{font-size:clamp(25px,4vh,55px)}.parcel b{font-size:clamp(13px,1.5vw,22px)}.counter{position:absolute;bottom:0;left:0;right:0;background:#fff3d8;border-top:3px solid var(--accent);border-radius:0 0 16px 16px;text-align:center;padding:5px 12px;font-size:14px;display:flex;flex-direction:column;gap:3px}progress{width:100%;height:9px;accent-color:var(--accent)}.players-1:not(.with-bot) .stalls{left:26%;right:26%}.players-2 .stalls,.with-bot .stalls{left:12%;right:12%}.challenge>span{font-size:clamp(21px,2.2vw,32px)}.answer-wrap{display:flex;align-items:center;gap:7px;margin-left:auto}.answer-wrap output{min-width:75px;max-width:none;font-size:clamp(20px,2.2vw,30px)}.answer-wrap>b{font-size:21px}.choice-board .challenge{flex:1;justify-content:center;text-align:center}.choice-board .challenge>span{white-space:normal;flex-shrink:1;font-size:clamp(20px,2vw,28px)}.choices{display:flex;gap:8px;min-height:28%}.choices button{flex:1;min-width:0;padding:6px;font-size:clamp(16px,1.6vw,24px)}.celebrate .parcel{animation:packed .8s ease}@keyframes packed{50%{transform:translateY(-12px) rotate(-4deg);background:#e3ffd5}}.players-1 .boards{left:20%;right:20%}.players-2 .boards{left:5%;right:5%}.keypad .submit{background:linear-gradient(#389184,#226a5e)}@media(max-width:700px){.setup-fields{grid-template-columns:1fr 1fr}.intro{gap:2%;left:3%;right:3%}.intro img{width:44%}.intro-copy{width:54%}.intro-copy h2{font-size:22px}.players-1:not(.with-bot) .stalls{left:8%;right:8%}.with-bot .stalls{left:3%;right:3%;gap:8px}.with-bot .awning{font-size:14px}.with-bot .counter{font-size:11px}.with-bot .parcel{left:3%;width:52%;padding:5px}.with-bot .parcel b{font-size:12px}.with-bot .stall img{right:0;width:47%}.players-1 .boards{left:3%;right:3%}.choices button{font-size:17px}.answer-wrap output{font-size:26px}.challenge>span{font-size:24px}}.parcel>span{font-size:clamp(20px,2.7vw,34px);white-space:nowrap}@media(max-width:700px){.with-bot .parcel>span{font-size:18px;white-space:normal}}header h1{font-style:italic;letter-spacing:-1px;font-size:clamp(33px,4vw,54px)}.intro-copy{background:#234a60ee}.intro img{width:35%;height:114%}.tracks{position:absolute;top:16%;height:33%;left:3%;right:3%;display:grid;gap:20px}.track{min-width:0;position:relative;display:flex;flex-direction:column;background:#374751;border:3px solid var(--accent);border-radius:15px;overflow:hidden;box-shadow:0 7px 12px #253a4166}.track-name{display:flex;justify-content:space-between;background:var(--soft);padding:5px 12px;flex-shrink:0;font-size:15px;z-index:2}.track progress{height:10px;width:100%;flex-shrink:0;accent-color:var(--accent)}.road{position:relative;flex:1;min-height:0;border-left:7px dashed #fff0db;border-right:7px dashed #f07b64;overflow:hidden;background:linear-gradient(90deg,#34434c,#51636b,#34434c)}.road-lines{position:absolute;inset:0;background:linear-gradient(180deg,#f8edce99 0 50%,transparent 50% 100%) 33.33% 0/3px 48px repeat-y,linear-gradient(180deg,#f8edce99 0 50%,transparent 50% 100%) 66.66% 0/3px 48px repeat-y;animation:drive 1.2s linear infinite}.gates{position:absolute;top:6%;left:0;right:0;display:flex;justify-content:space-around;z-index:1}.gates>span{background:#fff8e5;color:#284653;border:3px solid var(--accent);border-radius:8px;padding:3px 12px;font-size:22px;font-weight:700;text-align:center;min-width:18%}.gates .bot-sign{font-size:15px}.kart{position:absolute;bottom:1%;height:65%;width:29%;object-fit:contain;transform:translate(-50%);transition:left .22s ease;filter:drop-shadow(0 7px 4px #0007)}.car-badge{position:absolute;left:5px;bottom:6px;border:2px solid #fff;border-radius:50%;background:var(--accent);font-weight:700;width:24px;height:24px;text-align:center}.turbo{position:absolute;bottom:20%;right:5%;font-size:18px;font-weight:700;color:#ffeb8a;text-shadow:0 2px 3px #263d40}.question{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;min-height:0;text-align:center}.question small{font-size:14px;color:#557176;font-weight:700}.question>strong{font-size:clamp(27px,3vw,45px);line-height:1.15}.choices{height:41%;min-height:85px;display:flex;gap:9px}.choices button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;background:linear-gradient(#fffbed,#e9ddbe);border-color:#bea365}.choices button small{font-size:10px;letter-spacing:1px;color:#587271}.choices button b{font-size:clamp(25px,3vw,43px)}.choices button>span{font-size:19px;color:#50716a}.feedback{padding:8px 0 0;min-height:26px}.players-1:not(.with-bot) .tracks{left:27%;right:27%}.with-bot .tracks,.players-2 .tracks{left:12%;right:12%}.is-paused .road-lines,.end .road-lines{animation-play-state:paused}.boost .road-lines{animation-duration:.25s}.boost .kart{filter:drop-shadow(0 10px 8px #fff28b)}.wobble .kart{animation:wobble .3s linear 2}@keyframes drive{to{background-position:33.33% 48px,66.66% 48px}}@keyframes wobble{50%{transform:translate(-50%) rotate(-8deg)}}@media(max-width:700px){.players-1:not(.with-bot) .tracks{left:10%;right:10%}.with-bot .tracks{left:3%;right:3%;gap:8px}.with-bot .track-name{font-size:11px;padding:5px}.with-bot .gates>span{font-size:16px;padding:2px 6px;min-width:0}.with-bot .gates .bot-sign{font-size:11px}.with-bot .kart{width:39%;height:58%}.question>strong{font-size:32px}.question small{font-size:12px}.intro-copy h2{font-size:23px}.choices{gap:7px}.choices button b{font-size:32px}.turbo{font-size:13px}.tracks{gap:10px}}.rider-1 .kart{filter:hue-rotate(45deg) saturate(1.3) drop-shadow(0 7px 4px #0007)}.rider-2 .kart{filter:hue-rotate(110deg) saturate(1.25) drop-shadow(0 7px 4px #0007)}.rider-1.boost .kart{filter:hue-rotate(45deg) saturate(1.3) drop-shadow(0 10px 8px #fff28b)}.rider-2.boost .kart{filter:hue-rotate(110deg) saturate(1.25) drop-shadow(0 10px 8px #fff28b)}