:root{
  --navy:#071B4D; --blue:#156BFF; --blue-hover:#0F5AE0; --orange:#FF8A00;
  --green:#31A852; --purple:#6A35FF;
  --ink:#071B4D; --muted:#6B7280;
  --bg:#fff; --surface:#fff; --soft:#F5F7FB; --border:#E8EAF2;
  --glass:rgba(255,255,255,.88);
  --shadow:0 24px 70px -42px rgba(7,27,77,.28);
  --wrap:1220px; --pad:28px;
  --grad:linear-gradient(135deg,#156BFF,#6A35FF);
  --grad-text:linear-gradient(90deg,#156BFF,#6A35FF);
}
html[data-theme=dark]{
  --ink:#F4F7FF; --muted:#A9B4CE;
  --bg:#090F22; --surface:#111A34; --soft:#0E1730; --border:#263251;
  --glass:rgba(9,15,34,.84);
  --shadow:0 26px 72px -40px rgba(0,0,0,.68);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--ink);
  line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .25s,color .25s}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit}

.container{max-width:var(--wrap);margin:auto;padding:0 var(--pad)}
.section{padding:88px 0}
.soft{background:var(--soft)}

h1,h2,h3{font-family:Sora,sans-serif;margin:0;letter-spacing:-.04em;text-wrap:balance}
h1{font-size:clamp(2.6rem,5vw,4.6rem);line-height:1.03;letter-spacing:-.05em;margin:22px 0}
h2{font-size:clamp(2rem,3.8vw,3.4rem);line-height:1.12}
h3{font-size:1.05rem;line-height:1.25;letter-spacing:-.02em}
p{margin:0 0 1em}

.grad{background:var(--grad-text);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:18px;line-height:1.75;color:var(--muted);max-width:620px}
.muted{color:var(--muted)}

.kicker{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;
  background:#F0F5FF;border:1px solid #D6E4FF;color:var(--navy);font-size:12px;font-weight:700}
.kicker::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--blue);flex:none}
html[data-theme=dark] .kicker{background:rgba(21,107,255,.14);border-color:rgba(21,107,255,.35);color:#B8D0FF}
html[data-theme=dark] .kicker::before{background:#4B9BFF}

.head{max-width:760px;margin-bottom:44px}
.head.center{text-align:center;margin-left:auto;margin-right:auto}
.head h2{margin:14px 0}
.head p{font-size:17px;color:var(--muted)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 25px;
  border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s,box-shadow .2s,border-color .2s}
.btn:hover{transform:translateY(-2px)}
.primary{background:var(--grad);color:#fff;
  box-shadow:0 15px 34px -18px rgba(21,107,255,.75)}
.secondary{background:var(--surface);border-color:var(--border);color:var(--ink)}
.secondary:hover{border-color:var(--blue);color:var(--blue)}
.white{background:#fff;color:var(--navy)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:8px}

/* nav */
header.nav{position:sticky;top:0;z-index:60;background:var(--glass);
  backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.nav__in{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;height:40px;flex:none;min-width:0}
.logo img{height:36px;width:auto;max-width:min(180px,42vw)}
.nav__desktop{display:flex;align-items:center;justify-content:center;flex:1;min-width:0}
.links{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;font-size:14px;font-weight:600;color:var(--muted)}
.links a:hover{color:var(--blue)}
.nav__panel{display:none}
.actions{display:flex;align-items:center;gap:10px;flex:none}
.theme{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);
  background:var(--surface);color:var(--ink);cursor:pointer;flex:none}
.nav__toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface);color:var(--ink);cursor:pointer;padding:0;align-items:center;justify-content:center;flex:none}
.nav__toggle-bars,.nav__toggle-bars::before,.nav__toggle-bars::after{
  display:block;width:18px;height:2px;border-radius:2px;background:currentColor;position:relative;transition:transform .2s,opacity .2s}
.nav__toggle-bars::before,.nav__toggle-bars::after{content:'';position:absolute;left:0}
.nav__toggle-bars::before{top:-6px}
.nav__toggle-bars::after{top:6px}
header.nav.is-open .nav__toggle-bars{background:transparent}
header.nav.is-open .nav__toggle-bars::before{top:0;transform:rotate(45deg)}
header.nav.is-open .nav__toggle-bars::after{top:0;transform:rotate(-45deg)}
body.nav-open{overflow:hidden}

@media(max-width:1000px){
  .nav__toggle{display:inline-flex}
  .nav__desktop,.nav__cta-desktop{display:none!important}
  header.nav.is-open .nav__panel{
    display:block;border-top:1px solid var(--border);background:var(--bg);
    box-shadow:0 24px 40px -28px rgba(7,27,77,.45);max-height:calc(100dvh - 64px);overflow:auto}
  .nav__panel-in{padding:8px 0 20px}
  .links--mobile{flex-direction:column;flex-wrap:nowrap;align-items:stretch;gap:0}
  .links--mobile a{display:block;padding:14px 4px;border-bottom:1px solid var(--border);color:var(--ink);font-size:16px}
  .links--mobile a:hover{color:var(--blue)}
  .nav__panel-cta{display:grid;gap:10px;margin-top:16px}
  .nav__panel-cta .btn{width:100%}
}

@media(max-width:640px){
  :root{--pad:16px}
  .section{padding:56px 0}
  .nav__in{min-height:64px;gap:10px}
  .logo img{height:30px}
  .actions{gap:6px}
  .theme{width:40px;height:40px}
  .lang a{min-width:30px;height:30px;padding:0 8px;font-size:11px}
  .hero{padding:36px 0 40px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .lead{font-size:16px;line-height:1.65}
  .head{margin-bottom:28px}
  .final-box{border-radius:24px;padding:28px 18px}
  .schools__in{padding:24px 0}
  .foot{align-items:flex-start;flex-direction:column;gap:16px}
}

/* hero */
.hero{padding:70px 0 54px;overflow:hidden;
  background:radial-gradient(circle at 78% 28%,rgba(21,107,255,.14),transparent 26rem),
             radial-gradient(circle at 62% 70%,rgba(106,53,255,.12),transparent 22rem),
             linear-gradient(180deg,var(--bg),var(--soft))}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-note{margin-top:16px;font-size:13px;color:var(--muted)}
@media(max-width:980px){.hero-grid{grid-template-columns:1fr}}

/* carte élève */
.gamecard{background:linear-gradient(160deg,#0B225F,#071B4D);color:#fff;
  border-radius:28px;padding:26px;box-shadow:var(--shadow);position:relative;
  border:1px solid rgba(21,107,255,.28)}
.gc-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px}
.who{font-family:Sora,sans-serif;font-weight:700;font-size:16px}
.who small{display:block;font-weight:400;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(255,255,255,.5)}
.avatar{width:50px;height:50px;border-radius:16px;flex:none;display:grid;place-items:center;font-size:24px;
  background:var(--grad)}
.rankpill{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:7px 12px;
  border-radius:999px;color:#FFD6A0;background:rgba(255,138,0,.14);border:1px solid rgba(255,190,100,.32)}
.cur{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.cur div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:14px 8px;text-align:center}
.cur img{width:34px;height:34px;margin:0 auto 8px;object-fit:contain}
.cur b{display:block;font-family:Sora,sans-serif;font-size:16px}
.cur span{font-size:11px;color:rgba(255,255,255,.55)}
.progress{margin-top:20px}
.progress__t{display:flex;justify-content:space-between;font-size:12px;letter-spacing:.04em;
  color:rgba(255,255,255,.65);margin-bottom:8px}
.bar{height:11px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:999px;
  background:var(--grad);transition:width 1.6s cubic-bezier(.16,1,.3,1) .3s}
.gamecard.is-in .bar i{width:68%}
.quests{margin-top:20px;display:flex;flex-direction:column;gap:9px}
.quest{display:flex;align-items:center;gap:11px;font-size:14px;color:rgba(255,255,255,.85)}
.tick{width:20px;height:20px;border-radius:7px;flex:none;display:grid;place-items:center;font-size:11px;
  background:rgba(49,168,82,.2);border:1px solid rgba(49,168,82,.5);color:#8FE87A}
.quest.todo{color:rgba(255,255,255,.45)}
.quest.todo .tick{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:transparent}

/* problème */
.problem{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(26px,5vw,60px);align-items:start}
@media(max-width:860px){.problem{grid-template-columns:1fr}}
.lines{border-left:3px solid var(--blue);padding-left:22px}
.lines p{font-family:Sora,sans-serif;font-weight:600;font-size:clamp(1.15rem,2.3vw,1.55rem);
  line-height:1.35;margin:0 0 14px;color:var(--muted)}
.lines p:last-child{margin:0;color:var(--ink)}

/* piliers / étapes / cartes */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:s}
.card{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:24px;
  transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card p{font-size:13px;color:var(--muted);margin:8px 0 0}
.card .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:22px;margin-bottom:14px}
.grid4 .card:nth-child(1) .ico{background:rgba(21,107,255,.12)}
.grid4 .card:nth-child(2) .ico{background:rgba(49,168,82,.14)}
.grid4 .card:nth-child(3) .ico{background:rgba(106,53,255,.13)}
.grid4 .card:nth-child(4) .ico{background:rgba(255,138,0,.14)}
.grid3 .card{counter-increment:s;padding:30px 24px}
.grid3 .card::before{content:counter(s,decimal-leading-zero);display:block;margin-bottom:14px;
  font-family:Sora,sans-serif;font-weight:800;font-size:13px;letter-spacing:.08em;color:var(--blue)}
@media(max-width:980px){.grid4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){.grid3{grid-template-columns:1fr}}
@media(max-width:560px){.grid4{grid-template-columns:1fr}}

/* zone adaptative */
.adapt{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,60px);align-items:center}
@media(max-width:860px){.adapt{grid-template-columns:1fr}}
.zone{display:flex;flex-direction:column;gap:12px}
.zone div{display:flex;align-items:center;gap:14px;padding:16px 18px;border-radius:14px;font-size:14px}
.zone b{font-family:Sora,sans-serif;display:block;font-size:14px}
.zone .cold,.zone .hot{background:var(--surface);border:1px solid var(--border);color:var(--muted)}
.zone .good{background:linear-gradient(90deg,rgba(21,107,255,.12),rgba(106,53,255,.10));
  border:1px solid rgba(21,107,255,.34)}
.zone span{font-size:22px}

/* dashboard parent */
.dash{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(30px,5vw,60px);align-items:center}
@media(max-width:900px){.dash{grid-template-columns:1fr}}
.checks{list-style:none;padding:0;margin:26px 0 0;display:flex;flex-direction:column;gap:14px}
.checks li{display:flex;gap:13px;align-items:flex-start;font-size:15px}
.checks svg{flex:none;width:22px;height:22px;margin-top:2px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:26px;padding:24px;box-shadow:var(--shadow)}
.panel__bar{display:flex;align-items:center;gap:8px;margin-bottom:22px}
.panel__bar i{width:10px;height:10px;border-radius:50%;background:var(--border);display:block}
.panel__bar b{margin-left:auto;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);font-weight:600}
.skill{margin-bottom:15px}
.skill__t{display:flex;justify-content:space-between;font-size:13px;margin-bottom:7px}
.skill__t em{font-style:normal;color:var(--muted);font-size:12px}
.track{height:9px;border-radius:999px;background:var(--border);overflow:hidden}
.track i{display:block;height:100%;width:0;border-radius:999px;transition:width 1.4s cubic-bezier(.16,1,.3,1)}
.panel.is-in .track i{width:var(--w)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:18px;border-top:1px solid var(--border)}
.tag{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:7px 11px;
  border-radius:999px;background:rgba(106,53,255,.12);border:1px solid rgba(106,53,255,.28);color:var(--purple)}
html[data-theme=dark] .tag{color:#BDB4FF}

/* promesse */
.nolist{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:34px}
.no{display:flex;align-items:center;gap:9px;font-size:13px;font-weight:600;padding:10px 16px;
  border-radius:999px;background:var(--surface);border:1px solid var(--border)}
.no::before{content:'✕';color:#E2532F;font-weight:700}

/* faq */
.faq{max-width:900px;margin:auto;border-top:1px solid var(--border)}
.faq details{border-bottom:1px solid var(--border)}
.faq summary{list-style:none;cursor:pointer;padding:22px 44px 22px 0;position:relative;
  font-family:Sora,sans-serif;font-weight:700;font-size:1.05rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-family:Sora,sans-serif;font-size:26px;color:var(--blue);line-height:0}
.faq details[open] summary::after{content:'–'}
.faq p{color:var(--muted);padding-right:44px;margin:0 0 22px}

/* cta */
.final-box{background:var(--grad);
  border-radius:36px;padding:clamp(38px,5vw,62px);color:#fff;text-align:center}
.final-box h2{max-width:20ch;margin:0 auto 14px}
.final-box p{color:rgba(255,255,255,.85);max-width:48ch;margin:0 auto 26px}
.final-box .btn{margin-top:4px}
.final-box small{display:block;margin-top:16px;font-size:12px;color:rgba(255,255,255,.78)}

/* bandeau écoles */
.schools{border-top:1px solid var(--border);background:var(--soft)}
.schools__in{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;padding:32px 0}
.schools p{margin:0;font-size:15px;color:var(--muted);max-width:62ch}
.schools b{color:var(--ink);font-family:Sora,sans-serif}
.schools a{color:var(--blue);font-weight:700;white-space:nowrap}

footer{border-top:1px solid var(--border);padding:40px 0}
.foot{display:flex;justify-content:space-between;align-items:center;gap:26px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:14px}
.foot-brand img{height:28px;width:auto}
.foot-links{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.foot-links a:hover{color:var(--blue)}

.reveal{opacity:0;transform:translateY(22px);
  transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms!important;animation-duration:.001ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

.lang{display:inline-flex;align-items:center;gap:2px;padding:4px;border:1px solid var(--border);border-radius:999px;background:var(--surface);flex:none}
.lang a{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:32px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;color:var(--muted)}
.lang a:hover{color:var(--ink)}
.lang a.is-active{background:var(--grad);color:#fff}

/* demo exercises */
#demo.demo{display:grid;gap:22px;max-width:920px}
#demo .demo__filters{display:grid;gap:14px}
#demo .demo__group{display:grid;gap:12px;padding:16px;border:1px solid #D5DCEC;border-radius:18px;background:#fff}
html[data-theme=dark] #demo .demo__group{background:#111A34;border-color:#2C3A5C}
#demo .demo__label{margin:0;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#6B7280}
#demo .demo__levels,#demo .demo__domains{display:flex;flex-wrap:wrap;gap:12px}
#demo .demo__chip{appearance:none!important;-webkit-appearance:none!important;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:2px solid #C9D3E5!important;background:#EEF2F8!important;color:#334155!important;
  font:inherit;font-size:13px;font-weight:800;line-height:1.25;padding:12px 16px;border-radius:12px;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s,box-shadow .15s;margin:0;min-height:46px;box-shadow:none}
html[data-theme=dark] #demo .demo__chip{border-color:#3A4A6D!important;background:#1A2540!important;color:#CBD5E1!important}
#demo .demo__chip-check{display:none;width:18px;height:18px;border-radius:50%;align-items:center;justify-content:center;
  font-size:11px;font-weight:800;background:rgba(255,255,255,.25);color:#fff}
#demo .demo__chip:hover{border-color:#156BFF!important;color:#156BFF!important;background:#E8F1FF!important}
#demo .demo__chip.is-active,
html[data-theme=dark] #demo .demo__chip.is-active{
  background:#156BFF!important;border-color:#0F5AE0!important;color:#fff!important;
  box-shadow:0 0 0 3px rgba(21,107,255,.35)}
#demo .demo__chip.is-active:hover,
html[data-theme=dark] #demo .demo__chip.is-active:hover{
  background:#0F5AE0!important;border-color:#0B4BC0!important;color:#fff!important}
#demo .demo__chip.is-active .demo__chip-check{display:inline-flex}
#demo .demo__chip--domain{flex:1 1 210px;justify-content:flex-start;text-align:left}
#demo .demo__chip--domain.is-active,
html[data-theme=dark] #demo .demo__chip--domain.is-active{
  background:#6A35FF!important;border-color:#5420E0!important;color:#fff!important;
  box-shadow:0 0 0 3px rgba(106,53,255,.38)}
#demo .demo__chip--domain.is-active:hover,
html[data-theme=dark] #demo .demo__chip--domain.is-active:hover{
  background:#5420E0!important;border-color:#4318C4!important;color:#fff!important}
html[data-theme=dark] #demo .demo__chip:hover:not(.is-active){
  border-color:#5B8CFF!important;color:#9EC0FF!important;background:#243356!important}

/* simulated student player */
#demo .demo__stage{display:grid;gap:12px}
#demo .demo__player{border-radius:28px;padding:18px;background:
  radial-gradient(ellipse 420px 260px at 85% -10%,rgba(106,53,255,.35),transparent 55%),
  radial-gradient(ellipse 380px 240px at 10% 0%,rgba(21,107,255,.30),transparent 55%),
  linear-gradient(160deg,#0B225F,#071B4D 55%,#091530);border:1px solid rgba(255,255,255,.12);
  box-shadow:0 24px 50px -28px rgba(7,27,77,.65)}
#demo .demo__player-top{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
#demo .demo__player-badge{display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;
  font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#fff;
  background:rgba(21,107,255,.35);border:1px solid rgba(148,190,255,.45)}
#demo .demo__player-badge--soft{background:rgba(106,53,255,.35);border-color:rgba(196,170,255,.45)}
#demo .demo__player-panel{border-radius:22px;padding:22px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
#demo .demo__player-kicker{margin:0 0 10px;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#A5B4FC}
#demo .demo__question{font-family:Sora,sans-serif;font-size:clamp(1.2rem,2.4vw,1.55rem);line-height:1.35;
  letter-spacing:-.03em;margin:0 0 18px;color:#F8FAFC;font-weight:700}
#demo .demo__options{display:grid;gap:10px}
#demo .demo__option{appearance:none;display:flex;align-items:center;gap:14px;width:100%;text-align:left;
  padding:14px 16px;border-radius:16px;border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.22);
  color:#F8FAFC;font:inherit;font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;margin:0;
  transition:border-color .15s,background .15s,box-shadow .15s}
#demo .demo__option:hover:not(:disabled){background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35)}
#demo .demo__option.is-selected{border-color:#A78BFA;background:rgba(139,92,246,.22);box-shadow:0 0 0 2px rgba(167,139,250,.25)}
#demo .demo__option.is-correct{border-color:#34D399;background:rgba(16,185,129,.2);box-shadow:0 0 0 2px rgba(52,211,153,.25)}
#demo .demo__option.is-wrong{border-color:#FB7185;background:rgba(244,63,94,.18);box-shadow:0 0 0 2px rgba(251,113,133,.22)}
#demo .demo__option:disabled{cursor:default}
#demo .demo__radio{flex:none;width:22px;height:22px;border-radius:50%;border:2px solid rgba(255,255,255,.45);
  display:grid;place-items:center;background:transparent}
#demo .demo__radio::after{content:'';width:10px;height:10px;border-radius:50%;background:transparent}
#demo .demo__option.is-selected .demo__radio{border-color:#C4B5FD}
#demo .demo__option.is-selected .demo__radio::after{background:#C4B5FD}
#demo .demo__option.is-correct .demo__radio{border-color:#6EE7B7}
#demo .demo__option.is-correct .demo__radio::after{background:#6EE7B7}
#demo .demo__option.is-wrong .demo__radio{border-color:#FDA4AF}
#demo .demo__option.is-wrong .demo__radio::after{background:#FDA4AF}
#demo .demo__option-text{flex:1;min-width:0}
#demo .demo__feedback{margin-top:14px;padding:14px 16px;border-radius:14px;font-size:14px;line-height:1.55;color:#F8FAFC}
#demo .demo__feedback.is-correct{background:rgba(16,185,129,.18);border:1px solid rgba(52,211,153,.4)}
#demo .demo__feedback.is-wrong{background:rgba(244,63,94,.16);border:1px solid rgba(251,113,133,.4)}
#demo .demo__feedback strong{display:block;margin-bottom:4px;font-family:Sora,sans-serif}
#demo .demo__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
#demo .demo__btn{appearance:none;border:1px solid transparent;border-radius:999px;padding:12px 20px;font:inherit;
  font-size:14px;font-weight:800;cursor:pointer;transition:transform .15s,opacity .15s}
#demo .demo__btn:hover:not(:disabled){transform:translateY(-1px)}
#demo .demo__btn:disabled{opacity:.45;cursor:not-allowed}
#demo .demo__btn--primary{background:linear-gradient(135deg,#156BFF,#6A35FF);color:#fff}
#demo .demo__btn--ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#fff}
#demo .demo__footnote{margin:0;font-size:12px;color:var(--muted);padding-left:4px}
@media(max-width:700px){
  #demo .demo__group{padding:14px}
  #demo .demo__player{padding:14px}
  #demo .demo__player-panel{padding:16px}
  #demo .demo__levels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  #demo .demo__domains{display:grid;grid-template-columns:1fr;gap:10px}
  #demo .demo__chip,#demo .demo__chip--domain{width:100%;justify-content:center;text-align:center}
}