:root{--bg:#fafafa;--card:#fff;--ink:#0a0a0a;--ink2:#525252;--mute:#737373;--line:#e5e5e5;--line2:#d4d4d4;--acc:#d9480f;--acc2:#b93e0c;--acc-s:#fff1e8;--ok:#15803d;--ok-s:#ecfdf3;--bad:#b91c1c;--bad-s:#fef2f2;--gold:#f5a623;--sh:0 1px 2px #0000000a,0 12px 32px -18px #00000030}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}button,input,select,textarea{font:inherit;color:inherit}[hidden]{display:none!important}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:"Inter Tight",Inter,sans-serif;letter-spacing:-.035em;line-height:1.05;margin:0}
.mono{font:600 12px ui-monospace,"Geist Mono",monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--acc)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid var(--line2);background:#fff;font-weight:600;text-decoration:none;cursor:pointer;transition:.15s}
.btn:hover{border-color:var(--ink)}.btn.p{background:var(--ink);border-color:var(--ink);color:#fff}.btn.p:hover{background:#262626}.btn.a{background:var(--acc);border-color:var(--acc);color:#fff}.btn.a:hover{background:var(--acc2)}
.btn.wa{background:#128c7e;border-color:#128c7e;color:#fff}.btn:disabled{opacity:.45;cursor:not-allowed}
.card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh)}
input,select,textarea{width:100%;border:1px solid var(--line2);border-radius:12px;padding:12px 14px;background:#fff;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--acc);box-shadow:0 0 0 3px #d9480f22}
label{display:grid;gap:6px;font-size:14px;font-weight:600;color:var(--ink2)}
/* drapeaux */
.flag{display:inline-block;width:42px;height:28px;border-radius:6px;overflow:hidden;position:relative;box-shadow:0 0 0 1px #0000001a,0 4px 10px -6px #0006;flex:none;vertical-align:middle}
.flag svg{width:100%;height:100%;display:block}
.flag:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 20%,#ffffff70 45%,transparent 60%);background-size:250% 100%;animation:shine 3.2s ease-in-out infinite}
.flag.wave{animation:wave 2.8s ease-in-out infinite;transform-origin:left center}
@keyframes shine{0%{background-position:150% 0}60%,100%{background-position:-60% 0}}
@keyframes wave{0%,100%{transform:perspective(200px) rotateY(0) skewY(0)}25%{transform:perspective(200px) rotateY(-12deg) skewY(2deg)}75%{transform:perspective(200px) rotateY(8deg) skewY(-1.5deg)}}
.flag.s{width:26px;height:18px;border-radius:4px}.flag.l{width:64px;height:43px;border-radius:9px}.flag.xl{width:84px;height:56px;border-radius:11px}
/* en-tête */
.top{position:sticky;top:0;z-index:20;background:#fafafae8;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:18px;height:64px}.logo{display:flex;align-items:center;gap:9px;font:800 21px "Inter Tight";letter-spacing:-.03em;text-decoration:none}
.logo b{width:30px;height:30px;border-radius:9px;background:var(--ink);color:#fff;display:grid;place-items:center;font:800 16px "Inter Tight"}.logo i{width:8px;height:8px;border-radius:50%;background:var(--acc)}
.top nav{margin-left:auto;display:flex;gap:20px;align-items:center;font-size:15px;color:var(--ink2)}.top nav a{text-decoration:none}.top nav a:hover{color:var(--ink)}.top .btn{min-height:40px;padding:0 16px}
@media(max-width:860px){.top nav a:not(.btn){display:none}}
/* hero */
.hero{padding:60px 0 40px}.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(40px,6vw,70px);margin:14px 0 0}.hero h1 em{font-style:italic;background:linear-gradient(transparent 62%,#fde68a 62%)}
.hero p.l{font-size:19px;color:var(--ink2);margin:22px 0 28px;max-width:560px}.cta{display:flex;gap:12px;flex-wrap:wrap}
.salut{display:flex;align-items:center;gap:12px;margin-top:26px;font:700 22px "Inter Tight";min-height:44px}.salut span.t{border-right:2px solid var(--acc);padding-right:4px;animation:caret 1s step-end infinite}@keyframes caret{50%{border-color:transparent}}
.scene{position:relative;min-height:480px}
.fl{position:absolute;animation:flot 6s ease-in-out infinite}.fl .flag{width:70px;height:47px;border-radius:10px}
@keyframes flot{0%,100%{transform:translateY(0) rotate(var(--r,0deg))}50%{transform:translateY(-14px) rotate(calc(var(--r,0deg) * -1))}}
.jeu{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(380px,92%);padding:20px;display:grid;gap:12px;z-index:2}
.jeu .hd{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--mute)}.jeu .bar{flex:1;height:10px;border-radius:9px;background:#eee;overflow:hidden}.jeu .bar i{display:block;height:100%;width:30%;background:var(--ok);border-radius:9px;transition:width .5s}
.jeu h3{font-size:19px;letter-spacing:-.02em}.ops{display:grid;grid-template-columns:1fr 1fr;gap:8px}.op{border:2px solid var(--line);border-bottom-width:4px;border-radius:14px;padding:12px;text-align:center;font-weight:600;background:#fff;transition:.2s}
.op.sel{border-color:#60a5fa;background:#eff6ff}.op.ok{border-color:#22c55e;background:var(--ok-s);color:var(--ok)}
.res{display:flex;align-items:center;justify-content:space-between;border-radius:14px;padding:12px 14px;background:var(--ok-s);color:var(--ok);font-weight:700;opacity:0;transform:translateY(6px);transition:.3s}.res.on{opacity:1;transform:none}
.pop{position:absolute;right:16px;top:-14px;background:var(--gold);color:#3b2600;font:800 15px "Inter Tight";border-radius:99px;padding:6px 12px;opacity:0;transform:scale(.6);transition:.35s}.pop.on{opacity:1;transform:scale(1)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.chip{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;background:#fff;border:1px solid var(--line);border-radius:99px;padding:5px 13px 5px 6px}
/* sections */
.sec{padding:80px 0;border-top:1px solid var(--line)}.sec h2{font-size:clamp(30px,4.2vw,46px);max-width:780px}.sec .sub{color:var(--ink2);margin:14px 0 36px;max-width:660px;font-size:17.5px}
.langs{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.lg{padding:20px;display:grid;gap:12px;text-decoration:none;transition:.2s}.lg:hover{transform:translateY(-3px);border-color:var(--ink)}
.lg .h{display:flex;align-items:center;gap:14px}.lg b{font:800 22px "Inter Tight";letter-spacing:-.02em;display:block}.lg small{color:var(--mute)}.lg .s{font:600 20px "Inter Tight";color:var(--acc)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.steps .card{padding:20px}.steps .n{font:600 12px ui-monospace,monospace;color:var(--acc)}.steps b{display:block;margin:12px 0 4px;font-size:17px}.steps small{color:var(--ink2);font-size:14.5px}
.gam{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gm{padding:20px;display:grid;gap:8px}.gm .e{font-size:34px}.gm b{font-size:17px}.gm small{color:var(--ink2)}
.gm .e.f{animation:fire 1.4s ease-in-out infinite}@keyframes fire{50%{transform:scale(1.15) rotate(-6deg)}}
.lives{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.lv{padding:18px;display:flex;gap:14px;align-items:center}.lv .d{width:62px;flex:none;text-align:center;border-radius:14px;background:var(--acc-s);color:var(--acc2);padding:8px 0}.lv .d b{display:block;font:800 24px "Inter Tight"}.lv .d small{font-size:12px;text-transform:uppercase;font-weight:600}
.lv .t{flex:1;min-width:0}.lv .t b{display:block}.lv .t small{color:var(--mute)}
.pro{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}.pro form{padding:22px;display:grid;gap:12px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:600px){.f2{grid-template-columns:1fr}}
details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin-bottom:10px;max-width:820px}summary{font-weight:600;cursor:pointer}details p{margin:10px 0 0;color:var(--ink2)}
.fin{background:var(--ink);color:#fff;border-radius:28px;padding:54px 40px;display:grid;gap:18px;justify-items:start;position:relative;overflow:hidden}.fin h2{font-size:clamp(28px,4vw,44px)}.fin p{color:#d4d4d4;margin:0;max-width:620px}.fin .btn{border-color:#fff}
.fin .fls{position:absolute;right:30px;top:30px;display:grid;grid-template-columns:repeat(3,auto);gap:10px;opacity:.9}
footer{padding:34px 0 50px;color:var(--mute);font-size:14px}footer a{margin-right:14px}
.ok-msg{background:var(--ok-s);color:var(--ok);border-radius:12px;padding:12px 14px;font-weight:600}.err{color:var(--bad);font-size:14px;min-height:18px;margin:0}
@media(max-width:1000px){.hero .wrap,.pro{grid-template-columns:1fr}.langs,.lives{grid-template-columns:1fr 1fr}.steps,.gam{grid-template-columns:1fr 1fr}.scene{min-height:440px}.fin .fls{display:none}}
@media(max-width:620px){.langs,.lives,.steps,.gam{grid-template-columns:1fr}.cta .btn{width:100%}.fin{padding:34px 22px}.fl .flag{width:52px;height:35px}.hero{padding-top:34px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}