:root{--purple:#6c45f5;--deep:#2e2463;--ink:#25234a;--muted:#7c7b9e;--cream:#faf9ff;--card:#fff;--coral:#ff6f61;--blue:#3a9ded;--green:#25bb87;--yellow:#ffd45a}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 10% 15%,#eee8ff 0,transparent 25%),radial-gradient(circle at 90% 65%,#dff8f1 0,transparent 24%),var(--cream);font-family:Arial,"Helvetica Neue",sans-serif;color:var(--ink);overflow-x:hidden}button,input{font:inherit}button{cursor:pointer}.decor{position:fixed;z-index:-1;font-weight:900;color:#6c45f50b;font-size:180px;transform:rotate(-15deg)}.decor-one{left:-35px;top:190px}.decor-two{right:-15px;top:410px}.decor-three{left:14%;bottom:-70px}header{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1120px)/2));border-bottom:1px solid #3324780c;background:#ffffffaa;backdrop-filter:blur(12px)}.logo{border:0;background:none;color:var(--ink);font-weight:900;font-size:21px}.logo span{display:inline-grid;place-items:center;width:37px;height:37px;margin-right:8px;border-radius:12px;background:var(--purple);color:#fff;box-shadow:0 6px 16px #6c45f544}.logo b{color:var(--purple)}.round-btn{width:37px;height:37px;border-radius:50%;border:1px solid #e4e0f3;background:#fff;color:var(--purple);font-weight:900}.screen{width:min(1080px,calc(100% - 32px));margin:auto}.hero{text-align:center;padding:50px 10px 25px}.badge{display:inline-block;padding:7px 12px;border-radius:20px;background:#eeeaff;color:var(--purple);font-size:10px;font-weight:900;letter-spacing:1.5px}.hero h1{margin:13px 0 9px;font-size:clamp(40px,6vw,68px);line-height:.98;letter-spacing:-3px}.hero h1 em{font-style:normal;color:var(--purple)}.hero p{color:var(--muted);font-size:15px}.level-picker{width:max-content;max-width:100%;margin:10px auto 37px;padding:6px;display:flex;align-items:center;gap:5px;border:1px solid #e5e0f5;border-radius:14px;background:#fff;box-shadow:0 10px 28px #3829770b}.level-picker>span{padding:0 12px;color:var(--muted);font-size:9px;font-weight:900;letter-spacing:1px}.level-picker button{border:0;border-radius:9px;background:transparent;color:#777592;padding:9px 17px;font-size:11px;font-weight:800}.level-picker button.active{background:var(--purple);color:#fff;box-shadow:0 5px 12px #6c45f53c}.section-title{text-align:left;font-size:14px;margin:0 0 12px 3px}.activity-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.activity{--accent:var(--purple);min-height:186px;display:flex;flex-direction:column;align-items:flex-start;padding:20px;border:1px solid #ece9f5;border-radius:17px;background:#fff;text-align:left;box-shadow:0 12px 30px #3424740d;transition:.2s;color:var(--ink)}.activity:hover,.column-card:hover{transform:translateY(-5px);box-shadow:0 20px 38px #3525741c;border-color:color-mix(in srgb,var(--accent),white 65%)}.activity.coral{--accent:var(--coral)}.activity.blue{--accent:var(--blue)}.activity.green{--accent:var(--green)}.activity>i{display:grid;place-items:center;width:51px;height:51px;border-radius:14px;background:color-mix(in srgb,var(--accent),white 86%);color:var(--accent);font-size:30px;font-style:normal;font-weight:900}.activity>span{margin-top:15px}.activity b,.column-card b{display:block;font-size:16px}.activity small,.column-card small{display:block;margin-top:4px;color:var(--muted);font-size:11px}.activity>strong{margin-top:auto;color:var(--accent);font-size:9px;letter-spacing:1px}.column-title{margin-top:31px}.column-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.column-card{--accent:var(--purple);min-height:126px;display:grid;grid-template-columns:92px 1fr auto;align-items:center;gap:18px;padding:16px;border:1px solid #e9e5f4;border-radius:17px;background:#fff;color:var(--ink);text-align:left;box-shadow:0 12px 30px #3424740d;transition:.2s}.column-card:nth-child(2){--accent:var(--coral)}.paper{height:94px;padding:10px 18px;display:flex;flex-direction:column;justify-content:center;background:#f5f2ff;border-radius:12px;text-align:right;font-family:monospace;font-size:15px}.paper i{font-style:normal}.paper hr{width:100%;margin:3px 0;border:0;border-top:1px solid var(--purple)}.paper b{color:var(--purple)}.column-card>strong{font-size:9px;color:var(--accent);white-space:nowrap}footer{text-align:center;padding:42px;color:#aaa7bd;font-size:10px}.hidden{display:none!important}
.game-screen{padding:28px 0 55px}.game-top{display:grid;grid-template-columns:1fr minmax(180px,420px) 1fr;align-items:center;gap:25px}.back-btn{justify-self:start;border:1px solid #e5e0f0;border-radius:10px;padding:9px 13px;background:#fff;color:#6e6a8c;font-size:11px;font-weight:800}.progress-wrap>span{display:block;text-align:center;font-size:10px;color:var(--muted);font-weight:800;margin-bottom:7px}.progress{height:8px;border-radius:10px;background:#e9e5f3;overflow:hidden}.progress i{display:block;height:100%;width:10%;border-radius:10px;background:linear-gradient(90deg,var(--purple),#a76cff);transition:.35s}.lives{justify-self:end;color:#ff5874;font-size:19px;letter-spacing:3px}.game-layout{display:grid;grid-template-columns:210px minmax(400px,650px);justify-content:center;gap:20px;margin-top:42px}.mascot-card,.quiz-card{border:1px solid #ebe7f4;border-radius:22px;background:#fff;box-shadow:0 18px 45px #32247612}.mascot-card{align-self:start;text-align:center;padding:26px 18px}.mascot{width:108px;height:108px;margin:auto;display:grid;place-items:center;border-radius:50% 50% 46% 48%;background:linear-gradient(145deg,#8b6bff,#5830df);box-shadow:inset 9px 8px 15px #ffffff3d,0 12px 25px #6c45f538;position:relative}.mascot:before,.mascot:after{content:"";position:absolute;top:8px;width:33px;height:45px;border-radius:70% 20%;background:#7654ef;transform:rotate(-25deg)}.mascot:before{left:2px}.mascot:after{right:2px;transform:scaleX(-1) rotate(-25deg)}.mascot span{z-index:1;color:#fff;font-size:25px;font-weight:900}.mascot-card p{font-size:12px;color:var(--muted);min-height:30px;margin:18px 0}.score-label{font-size:9px;letter-spacing:2px;color:#aaa6bf}.mascot-card>strong{display:block;color:var(--purple);font-size:29px;margin-top:2px}.quiz-card{padding:31px 38px;min-height:440px}.quiz-heading{display:flex;align-items:center;gap:12px;border-bottom:1px solid #efedf5;padding-bottom:20px}.quiz-heading>span{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#eeeaff;color:var(--purple);font-size:27px;font-weight:900}.quiz-heading small{font-size:9px;letter-spacing:1.5px;color:var(--purple);font-weight:900}.quiz-heading h2{font-size:16px;margin:2px 0 0}.normal-question{min-height:154px;display:flex;align-items:center;justify-content:center;gap:25px;font-size:52px;font-weight:900}.normal-question i{font-style:normal;color:var(--purple)}.normal-question span{display:grid;place-items:center;width:68px;height:68px;border:2px dashed #cfc7ef;border-radius:15px;color:#aaa3c9}.quiz-card form label{display:block;font-size:10px;font-weight:900;color:#77738f;margin-bottom:7px}.answer-line{display:flex;gap:10px}.answer-line input{width:100%;min-width:0;height:54px;padding:0 18px;border:2px solid #e3dff0;border-radius:12px;outline:0;color:var(--ink);font-size:24px;font-weight:900}.answer-line input:focus{border-color:var(--purple);box-shadow:0 0 0 4px #6c45f510}.answer-line button,.next-btn{border:0;border-radius:12px;padding:0 25px;background:var(--purple);color:#fff;font-size:11px;font-weight:900;box-shadow:0 8px 20px #6c45f53d}.feedback{margin-top:14px;padding:13px;display:flex;align-items:center;gap:10px;border-radius:11px;background:#e6faf2;color:#168662}.feedback.wrong{background:#fff0ef;color:#d7463b}.feedback span{font-size:20px}.feedback p{margin:0;font-size:12px;font-weight:800}.next-btn{display:block;height:47px;margin:14px 0 0 auto}.column-question{width:max-content;min-height:190px;margin:20px auto 10px;font:900 34px/1.15 monospace;text-align:right}.column-number{position:relative;letter-spacing:8px;padding-left:35px}.column-number i{position:absolute;left:2px;font-style:normal;color:var(--purple)}.column-question hr{border:0;border-top:3px solid var(--ink);margin:5px 0 7px}.carry-row{height:21px;color:var(--coral);font-size:14px;letter-spacing:10px}.column-inputs{min-width:135px;min-height:41px;border:2px dashed #cec7e8;border-radius:8px;color:#afa8ca;text-align:center}.result-screen{padding:70px 0}.result-card{width:min(520px,100%);margin:auto;padding:40px;text-align:center;border:1px solid #e8e3f4;border-radius:25px;background:#fff;box-shadow:0 25px 70px #39267d20}.stars{color:var(--yellow);letter-spacing:8px}.cup{font-size:65px;margin:10px}.result-card>p{font-size:9px;letter-spacing:2px;color:var(--muted)}.result-card h2{font-size:40px;color:var(--purple);margin:3px}.result-card h3{font-size:15px;margin:0;color:var(--muted)}.result-stats{display:flex;justify-content:center;gap:55px;margin:25px 0}.result-stats span{font-size:9px;color:var(--muted);letter-spacing:1px}.result-stats b{display:block;font-size:23px;color:var(--ink);letter-spacing:0}.result-actions{display:flex;justify-content:center;gap:9px}.result-actions button{padding:13px 17px;border-radius:10px;border:0;background:var(--purple);color:#fff;font-size:10px;font-weight:900}.result-actions button:last-child{background:#eeeaff;color:var(--purple)}
.activity,.column-card,.quiz-card{transform-style:preserve-3d;will-change:transform}.activity:after,.column-card:after{content:"";position:absolute;inset:8px -7px -9px 8px;z-index:-1;border-radius:inherit;background:#2b1c6420;filter:blur(1px)}.activity,.column-card{position:relative}.activity>i,.paper,.quiz-heading>span{transform:translateZ(18px)}.quiz-card{position:relative;box-shadow:0 10px 0 #ded7f0,0 28px 50px #3224761c}.hint-btn{display:block;margin:13px auto 0;padding:9px 13px;border:1px solid #e1dbf3;border-radius:10px;background:#faf8ff;color:var(--purple);font-size:10px;font-weight:900}.hint-btn:hover{background:#eeeaff}.hint-btn:disabled{opacity:.55;cursor:default}.hint-box{margin-top:12px;padding:13px 15px;border-radius:12px;border-left:4px solid var(--yellow);background:#fff9dc;animation:hintIn .25s ease}.hint-box b{font-size:11px;color:#8a6b00}.hint-box p{margin:4px 0 0;font-size:12px;line-height:1.45;color:#665a30}@keyframes hintIn{from{opacity:0;transform:translateY(8px)}}
@media(max-width:800px){.activity-grid{grid-template-columns:1fr 1fr}.column-grid{grid-template-columns:1fr}.game-layout{grid-template-columns:1fr}.mascot-card{display:none}.quiz-card{width:min(650px,100%);margin:auto}}@media(max-width:620px){.level-picker{width:100%;flex-wrap:wrap;justify-content:center}.level-picker button{flex:1 1 40%}}@media(max-width:520px){header{padding:0 16px}.hero{padding-top:35px}.hero h1{font-size:42px}.level-picker button{padding:8px}.level-picker>span{display:none}.activity-grid{grid-template-columns:1fr}.activity{min-height:125px;display:grid;grid-template-columns:56px 1fr;align-items:center}.activity>span{margin:0}.activity>strong{grid-column:2}.column-card{grid-template-columns:80px 1fr}.column-card>strong{display:none}.game-top{grid-template-columns:auto 1fr auto;gap:8px}.lives{font-size:14px}.quiz-card{padding:23px 18px}.normal-question{font-size:38px;gap:13px}.normal-question span{width:55px;height:55px}.answer-line{flex-direction:column}.answer-line button{height:48px}.result-card{padding:30px 18px}.result-stats{gap:30px}}
.tables-screen{padding:28px 0 55px}.tables-card{max-width:650px;margin:24px auto;padding:28px;background:#fff;border:1px solid #ebe7f4;border-radius:22px;box-shadow:0 18px 45px #32247612}.tables-card h1{margin-top:0;font-size:26px;color:var(--purple)}.tables-card p{font-size:14px;line-height:1.5;color:#625d7c}.tables-fieldset{min-width:0;margin:22px 0 0;padding:0;border:0}.tables-fieldset legend{font-weight:800}.tables-actions{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0}.tables-actions button{padding:9px 12px;border:1px solid #ddd5f6;border-radius:9px;background:#f5f2ff;color:var(--deep)}.tables-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(65px,1fr));gap:10px}.tables-grid label{position:relative;cursor:pointer}.tables-grid input{position:absolute;top:8px;left:7px;accent-color:var(--purple);margin:0}.tables-grid span{display:grid;place-items:center;min-height:56px;padding:12px 8px 8px 20px;border:2px solid #e3dff0;border-radius:12px;font-weight:800;color:var(--deep)}.tables-grid input:checked+span{border-color:var(--purple);background:#eeeaff;color:var(--purple)}.tables-grid input:focus-visible+span{outline:3px solid var(--blue);outline-offset:3px}.tables-card .next-btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}@media(max-width:520px){.tables-card{padding:22px 16px}.tables-card h1{font-size:23px}}
.column-question{--digit-width:38px;max-width:100%;font-size:30px}.column-number{display:flex;justify-content:flex-end;letter-spacing:0;padding-left:24px}.column-number span{display:inline-block;width:var(--digit-width);text-align:center}#columnB{display:flex;width:auto}.column-inputs{display:flex;flex-direction:row-reverse;justify-content:flex-start;border:0;padding-left:24px;min-width:0;gap:0}.column-inputs input{width:var(--digit-width);min-width:0;height:46px;padding:0;border:2px dashed #cec7e8;border-radius:7px;background:#faf8ff;color:var(--ink);font:inherit;text-align:center}.column-inputs input:focus{outline:2px solid var(--purple);outline-offset:1px;border-color:var(--purple);background:#eeeaff;position:relative;z-index:1}.column-inputs input:disabled{opacity:1;color:var(--ink);background:#f0edf7}.column-help{font-size:12px;line-height:1.5;color:#625d7c;text-align:center}@media(max-width:520px){.column-question{--digit-width:26px;font-size:23px}.column-inputs input{height:42px}}
.carry-row{display:flex;flex-direction:row-reverse;justify-content:flex-start;height:auto;min-height:32px;margin-bottom:7px;padding-left:24px;letter-spacing:0}.carry-row>span{display:flex;justify-content:center;width:var(--digit-width);flex-shrink:0}.carry-row input{width:calc(var(--digit-width) - 6px);min-width:0;height:28px;padding:0;border:1px solid #e7b59e;border-radius:5px;background:#fff6ed;color:#9b431c;font:700 14px monospace;text-align:center}.carry-row input:focus{outline:2px solid var(--coral);outline-offset:1px;background:#fff0df}.carry-row input:disabled{opacity:1;background:#f4eee9;color:#9b431c}
/* Photo de l’École des Tattes d’Oie : Michel Perret / Ville de Nyon. */
body{isolation:isolate;background:#e9edf3}body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(#faf9ff80,#faf9ff99),url('assets/ecole-tattes-doie-nyon.jpg') center center/cover no-repeat}.decor{display:none}.hero{width:fit-content;max-width:100%;margin:28px auto 20px;padding:24px 32px;background:#ffffffeb;border-radius:24px;box-shadow:0 12px 30px #34247412}.hero p{color:#625d7c}.section-title{width:fit-content;max-width:100%;padding:8px 12px;border-radius:9px;background:#fffffff0}.progress-wrap{padding:9px 12px;border-radius:12px;background:#fffffff0}.lives{padding:8px;border-radius:10px;background:#fffffff0}footer{width:fit-content;max-width:calc(100% - 32px);margin:24px auto;padding:12px 18px;border-radius:12px;background:#fffffff0;color:#625d7c;line-height:1.7}footer a{color:#51408e}.photo-credit{display:block}@media(max-width:520px){.hero{padding:24px 14px}.hero h1{font-size:38px}.progress-wrap{padding:8px}.lives{padding:5px}}