/* Les mondes d'Aline — scroll-world marketing page. Colours come from the canvas via --bg/--ink/--accent. */
:root{color-scheme:only light;--bg:#fbf7ef;--ink:#1e2a26;--accent:#2f6f5e;--green:#2f6f5e;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;--sans:"Nunito","Segoe UI",system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);transition:background-color .2s;color:var(--ink);font:18px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
#world{position:fixed;inset:0;z-index:0;display:block;pointer-events:none;opacity:0}
.muted{color:color-mix(in srgb,var(--ink) 72%,transparent)}

/* top bar */
header.top{position:fixed;top:0;left:0;right:0;z-index:30;background:color-mix(in srgb,var(--bg) 94%,transparent);box-shadow:0 1px 0 color-mix(in srgb,var(--ink) 10%,transparent);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px clamp(16px,4vw,44px)}
.brand{display:flex;align-items:center;gap:10px;font:600 22px/1 var(--serif);text-decoration:none;color:var(--ink)}
.brand .mark{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--bg);font:700 18px/1 var(--serif)}
header nav{display:flex;align-items:center;gap:6px}
header nav a{text-decoration:none;font-weight:700;font-size:15px;padding:8px 12px;border-radius:999px;color:var(--ink)}
header nav a:hover,header nav a:focus-visible{background:color-mix(in srgb,var(--ink) 10%,transparent)}
header nav a.cta{background:var(--accent);color:var(--bg)}
header nav a.lang{border:1px solid color-mix(in srgb,var(--ink) 30%,transparent)}

/* progress rail */
.rail{opacity:0;pointer-events:none;transition:opacity .4s;position:fixed;right:clamp(10px,1.8vw,26px);top:50%;transform:translateY(-50%);z-index:25;display:flex;flex-direction:column;gap:11px;list-style:none;margin:0;padding:0}
.rail a{display:flex;align-items:center;justify-content:flex-end;gap:10px;text-decoration:none;font-size:13px;font-weight:700;min-height:18px}
.rail a span{opacity:0;transform:translateX(6px);transition:.25s;white-space:nowrap}
.rail a i{width:10px;height:10px;border-radius:50%;border:2px solid var(--ink);opacity:.75;transition:.25s}
.rail a:hover span,.rail a.on span,.rail a:focus-visible span{opacity:1;transform:none}
.rail a.on i{background:var(--accent);border-color:var(--accent);opacity:1;transform:scale(1.35)}

/* chapters */
main{position:relative;z-index:10}
.chapter{position:relative;min-height:200vh}
.chapter .panel{position:sticky;top:0;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:96px clamp(20px,5vw,72px) 60px;
  max-width:min(52vw,640px);opacity:.1;transition:opacity .6s ease,transform .8s cubic-bezier(.2,.8,.2,1),filter .6s;transform:translateY(30px) scale(.97);filter:blur(3px)}
.chapter .panel>*{opacity:0;transform:translateY(22px);transition:opacity .6s ease calc(var(--i,0)*90ms),transform .7s cubic-bezier(.2,.8,.2,1) calc(var(--i,0)*90ms)}
.chapter.is-active .panel>*,.chapter.flat .panel>*{opacity:1;transform:none}
.chapter[data-side=right] .panel{margin-left:auto;margin-right:clamp(40px,5vw,90px)}
.chapter.is-active .panel{opacity:1;transform:none;filter:none}
.chapter[data-side=center] .panel{margin:0 auto;text-align:center;max-width:760px;align-items:center}
.chapter[data-side=center] .panel .lead{margin-left:auto;margin-right:auto}
.chapter.portal{min-height:240vh}
.chapter[data-side=center]:not(.flat) .panel::before{content:"";position:absolute;left:50%;top:50%;width:min(900px,96vw);height:520px;transform:translate(-50%,-50%);z-index:-1;pointer-events:none;background:radial-gradient(closest-side,color-mix(in srgb,var(--bg) 88%,transparent),transparent)}
.chapter[data-side=center]:not(.flat) .panel{isolation:isolate}.chapter.portal h2{font-size:clamp(40px,6vw,84px)}
.chapter[data-world=words] .panel{justify-content:flex-end;padding-bottom:9vh}
.chapter.flat{min-height:auto}
#questions .panel{padding-bottom:22vh}
.chapter[id]{scroll-margin-top:0}
.chapter.flat .panel{position:relative;max-width:1180px;margin:0 auto;min-height:auto;padding:110px clamp(20px,5vw,72px) 80px;opacity:1;transform:none;filter:none;text-align:left;align-items:stretch}

.world-name{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
.world-name::before{content:"";width:26px;height:1.5px;background:currentColor}
h1,h2{font-family:var(--serif);font-weight:560;letter-spacing:-.01em;word-spacing:.04em;line-height:1.06;margin:0 0 18px;text-wrap:balance;font-variation-settings:"SOFT" 60,"opsz" 96}
h1{font-size:clamp(42px,6.2vw,86px)}
h2{font-size:clamp(34px,4.4vw,60px)}
h1 em,h2 em{font-style:italic;color:var(--accent)}
.lead{font-size:clamp(18px,1.5vw,21px);max-width:34em;margin:0 0 22px;color:color-mix(in srgb,var(--ink) 84%,transparent);text-wrap:pretty}
.lead strong{color:var(--ink)}
ul.facts{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:8px}
ul.facts li{position:relative;padding-left:24px;color:color-mix(in srgb,var(--ink) 82%,transparent)}
ul.facts li::before{content:"";position:absolute;left:2px;top:.62em;width:9px;height:9px;border-radius:50%;background:var(--accent)}

/* the little typed exchange */
.talk{display:grid;gap:8px;margin:4px 0 0;max-width:30em}
.bubble{padding:10px 15px;border-radius:18px;font-size:16px;line-height:1.45;min-height:1.45em}
.bubble.kid{justify-self:end;background:color-mix(in srgb,var(--ink) 12%,transparent);border-bottom-right-radius:6px}
.bubble.aline{justify-self:start;background:color-mix(in srgb,var(--accent) 22%,transparent);border-bottom-left-radius:6px}
.bubble span:empty::before{content:"•••";opacity:.5;letter-spacing:.15em}
.bubble small{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;opacity:.7}
.typing::after{content:"▍";animation:blink 1s steps(1) infinite;margin-left:1px;color:var(--accent)}
@keyframes blink{50%{opacity:0}}

/* buttons */
.ctas{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:999px;font-weight:700;text-decoration:none;background:var(--accent);color:var(--bg);border:2px solid var(--accent)}
.btn.ghost{background:transparent;color:var(--ink);border-color:color-mix(in srgb,var(--ink) 40%,transparent)}
.btn:hover{filter:brightness(1.05)}
.btn:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 0;padding:0;list-style:none}
.chips a{display:inline-block;font-size:14px;font-weight:700;text-decoration:none;padding:7px 13px;border-radius:999px;border:1px solid color-mix(in srgb,var(--ink) 28%,transparent)}
.chips a:hover{background:color-mix(in srgb,var(--ink) 10%,transparent)}
.scrollhint{margin-top:34px;font-size:14px;letter-spacing:.08em;text-transform:uppercase;opacity:.7}
.scrollhint::after{content:"↓";margin-left:8px;display:inline-block;animation:bob 1.8s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(5px)}}

/* plans */
.plans{display:grid;grid-template-columns:repeat(3,1fr);max-width:900px;margin-left:auto!important;margin-right:auto!important;}
.plans.two{grid-template-columns:repeat(2,1fr);gap:18px;margin:28px 0 18px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;padding:26px 24px;border-radius:22px;background:color-mix(in srgb,var(--bg) 88%,#fff);border:1.5px solid color-mix(in srgb,var(--ink) 16%,transparent)}
.plan.pop{border-color:var(--accent);box-shadow:0 18px 50px color-mix(in srgb,var(--ink) 16%,transparent)}
.plan .badge{position:absolute;top:-13px;left:20px;background:var(--accent);color:var(--bg);font-size:13px;font-weight:700;padding:3px 12px;border-radius:999px}
.plan h3{font:600 26px/1.1 var(--serif);margin:0}
.plan .tag{margin:4px 0 14px;opacity:.75}
.plan .price{margin:0}.plan .price b{font:600 44px/1 var(--serif)}.plan .price span{opacity:.7}
.plan .year{font-size:14px;opacity:.7;margin:4px 0 14px}
.plan ul{margin:0 0 14px;padding-left:20px;flex:1}.plan li{margin:5px 0;font-size:16px}
.plan .extra{font-size:14px;opacity:.7;margin:0 0 14px}
.plan .btn{width:100%}
.vs{font-size:19px;text-align:center;margin:20px 0 8px}
.note{font-size:15px;text-align:center;opacity:.75;margin:0}

/* faq */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.faq details{border-radius:16px;padding:16px 20px;background:color-mix(in srgb,var(--bg) 90%,#fff);border:1px solid color-mix(in srgb,var(--ink) 14%,transparent)}
.faq summary{font-weight:700;cursor:pointer;min-height:24px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:10px 0 0;opacity:.82}

footer{position:relative;z-index:10;padding:28px clamp(20px,5vw,72px) 44px;font-size:14px;opacity:.8}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:50;background:var(--accent);color:var(--bg);padding:8px 12px;border-radius:8px}


/* ============ the normal site (above the portal) ============ */
.std{position:relative;padding:clamp(72px,9vw,120px) clamp(20px,5vw,72px)}
.std.hero{padding-top:clamp(120px,14vh,170px);min-height:92vh;display:flex;align-items:center}
.std.alt{background:color-mix(in srgb,var(--accent) 6%,transparent)}
.wrap{max-width:1180px;margin:0 auto;width:100%}
.wrap.two{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,70px);align-items:center}
.kicker{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 12px}
.std h2{max-width:22em}
.trust{display:grid;grid-template-columns:repeat(2,max-content);gap:8px 18px;list-style:none;padding:0;margin:26px 0 0;font-size:15px;font-weight:700}
.trust li::before{content:"✓";color:var(--accent);margin-right:6px}
.hero-card{position:relative;background:#fff;border-radius:28px;padding:22px;box-shadow:0 30px 70px rgba(30,42,38,.16);display:grid;gap:10px;transform:rotate(1.2deg);animation:float 6s ease-in-out infinite}
.hero-card .hc-top{display:flex;flex-direction:column;border-bottom:1px solid #eee;padding-bottom:10px;margin-bottom:4px}
.hero-card .hc-top span{font-size:14px;opacity:.7}
.hero-card .bubble{max-width:85%}
.hc-star{position:absolute;right:-12px;top:-14px;background:#f3c969;color:#1e2a26;font-weight:700;border-radius:999px;padding:6px 14px;box-shadow:0 8px 20px rgba(0,0,0,.12)}
@keyframes float{50%{transform:rotate(-.6deg) translateY(-8px)}}
ol.how,ul.feats,ul.promise,ol.path{list-style:none;padding:0;margin:34px 0 0;display:grid;gap:18px}
ol.how{grid-template-columns:repeat(3,1fr)}
ol.how li,ul.promise li,ol.path li{background:#fff;border-radius:22px;padding:24px;box-shadow:0 10px 30px rgba(30,42,38,.06)}
ol.how .n{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;font:700 18px/1 var(--serif);margin-bottom:12px}
ol.how h3,ul.feats h3,ul.promise h3,ol.path h3{font:600 21px/1.2 var(--serif);margin:0 0 6px}
ol.how p,ul.feats p,ul.promise p,ol.path p{margin:0;font-size:16px;opacity:.82}
ul.feats{grid-template-columns:repeat(4,1fr)}
ul.feats li{padding:6px 4px}
ul.feats .ic{font-size:28px;display:block;margin-bottom:8px}
ul.promise{grid-template-columns:repeat(3,1fr)}
ol.path{grid-template-columns:repeat(3,1fr);counter-reset:s}
ol.path li{position:relative;border-top:4px solid var(--accent)}
ol.path .when{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}

/* ============ the guest demo ============ */
.essai{margin-top:30px;background:#fff;border-radius:28px;box-shadow:0 30px 80px rgba(30,42,38,.14);padding:clamp(16px,2.4vw,28px);color:#1e2a26}
.e-pick{display:flex;flex-wrap:wrap;gap:14px 30px;margin-bottom:18px}
.e-lbl{margin:0 0 6px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.65}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{font:700 15px/1 var(--sans);min-width:44px;min-height:40px;padding:8px 14px;border-radius:999px;border:1.5px solid #d8dcd4;background:#fff;color:#1e2a26;cursor:pointer}
.seg button[aria-pressed=true]{background:#2f6f5e;border-color:#2f6f5e;color:#fff}
.seg button:focus-visible{outline:3px solid #f3c969;outline-offset:2px}
.e-body{display:grid;grid-template-columns:320px 1fr;gap:20px}
.hw{background:#fbf6ea;border-radius:20px;padding:20px;display:flex;flex-direction:column;border-left:4px solid #e9a8a0}
.kidname{margin:0;font:600 22px/1.2 var(--serif)}.kidname span{display:block;font:400 14px/1.4 var(--sans);opacity:.7}
.hw-meta{font-size:13px;opacity:.7;margin:8px 0 12px}
.hw-title{font:600 19px/1.25 var(--serif);margin:0 0 8px}
.hw-cons{margin:0 0 16px;font-size:17px;line-height:30px;background:repeating-linear-gradient(transparent 0 29px,#e7dfcc 29px 30px)}
.e-hud{margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-weight:700;font-size:15px;position:relative}
.e-hud .stars{position:relative;color:#b7791f}
.e-hud .xp{flex:1 1 100%;height:8px;border-radius:9px;background:#e7dfcc;overflow:hidden}.e-hud .xp i{display:block;height:100%;width:0;background:linear-gradient(90deg,#f3c969,#d9822b);transition:width .6s}
.star-pop{position:absolute;left:0;top:-6px;color:#d9822b;font-weight:700;animation:rise 1.1s ease-out forwards;pointer-events:none;white-space:nowrap}
@keyframes rise{to{transform:translateY(-38px) scale(1.3);opacity:0}}
.chat{display:flex;flex-direction:column;min-height:440px;border:1.5px solid #eceee8;border-radius:20px;overflow:hidden}
.log{flex:1;overflow:auto;padding:18px 18px 26px;scroll-padding-bottom:26px;display:flex;flex-direction:column;gap:10px;max-height:470px;background:#fcfcfa}
.msg{max-width:80%;padding:10px 15px;border-radius:18px;font-size:16px;line-height:1.45;animation:pin .3s ease-out}
.msg small{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;opacity:.6}
.msg.aline{align-self:flex-start;background:#e6f1ec;border-bottom-left-radius:6px}
.msg.kid{align-self:flex-end;background:#2f6f5e;color:#fff;border-bottom-right-radius:6px}
.msg.kid small{opacity:.8}
.msg.report{align-self:stretch;max-width:none;background:#fff7e6;border:1.5px solid #f3c969}
.msg.report h4{margin:0 0 8px;font:600 18px/1.2 var(--serif)}
.msg.report dl{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin:0}.msg.report dt{font-weight:700}.msg.report dd{margin:0}
.msg.report .t{margin:8px 0 0;font-size:14px;opacity:.7}
.d i{display:inline-block;width:7px;height:7px;margin:0 2px;border-radius:50%;background:#2f6f5e;opacity:.4;animation:dot 1s infinite}.d i:nth-child(2){animation-delay:.15s}.d i:nth-child(3){animation-delay:.3s}
@keyframes dot{50%{opacity:1;transform:translateY(-3px)}}
@keyframes pin{from{opacity:0;transform:translateY(8px)}}
.ctrl{padding:14px;border-top:1.5px solid #eceee8;background:#fff;min-height:76px;display:flex;align-items:center}
.ctrl .btn,.ctrl form{margin:0}
.ctrl .btn{background:#2f6f5e;border-color:#2f6f5e;color:#fff}
.ctrl .btn.ghost{background:#fff;color:#1e2a26;border-color:#cfd5cd}
.num{display:flex;gap:8px;width:100%}
.num input{flex:1;min-width:0;font:600 20px/1 var(--sans);padding:10px 16px;border-radius:999px;border:1.5px solid #cfd5cd;min-height:48px}
.num input:focus{outline:3px solid #f3c969;border-color:#2f6f5e}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:700 16px/1.2 var(--sans);min-height:46px;padding:10px 18px;border-radius:999px;border:1.5px solid #2f6f5e;background:#fff;color:#2f6f5e;cursor:pointer}
.chip:hover{background:#e6f1ec}
.after{display:flex;flex-wrap:wrap;gap:10px;align-items:center;width:100%}.after p{flex:1 1 100%;margin:0;font-size:14px;opacity:.7}
.e-note{font-size:14px;opacity:.65;margin:14px 4px 0}

/* ============ immersion: HUD, rail, dark header ============ */
.hud{position:fixed;left:50%;bottom:18px;transform:translate(-50%,20px);z-index:26;opacity:0;pointer-events:none;transition:opacity .4s,transform .4s;
  display:flex;align-items:center;gap:12px;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:700;
  background:color-mix(in srgb,var(--bg) 70%,transparent);border:1px solid color-mix(in srgb,var(--ink) 18%,transparent);backdrop-filter:blur(8px);color:var(--ink)}
.hud .h-name{opacity:.8;font-weight:600}
.hud .h-stars{color:var(--accent)}
.hud .h-bar{width:90px;height:6px;border-radius:9px;background:color-mix(in srgb,var(--ink) 16%,transparent);overflow:hidden}.hud .h-bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .6s}
.h-pop{position:absolute;right:10px;top:-8px;color:var(--accent);animation:rise 1.2s ease-out forwards}
body.deep .hud{opacity:1;transform:translate(-50%,0)}
body.deep .rail{opacity:1;pointer-events:auto}
.std{transition:opacity .5s}
body.deep .std{opacity:0}

/* mobile: art on top, opaque text card underneath */
@media (max-width:859px){
  header.top{background:var(--bg);padding:10px 14px;box-shadow:0 1px 0 color-mix(in srgb,var(--ink) 12%,transparent)}
  header nav a:not(.cta):not(.lang){display:none}
  header nav{gap:8px}header nav a.cta{padding:9px 14px;font-size:14px;white-space:nowrap}
  header.top .brand{font-size:20px}
  html,body{overflow-x:clip}
  .rail{display:none}
  .chapter{min-height:auto}
  .chapter .panel,.chapter[data-side=right] .panel{position:relative;max-width:none;margin:0;min-height:100vh;justify-content:flex-start;
    padding:58vh 20px 56px;opacity:1;transform:none;background:linear-gradient(to bottom,transparent 0,transparent 52vh,var(--bg) 58vh)}
  .chapter.hero .panel{padding-top:96px;background:none;justify-content:center}
  .chapter.flat .panel{padding:84px 20px 56px;background:var(--bg)}
  .plans,.faq{grid-template-columns:1fr}
  .wrap.two,ol.how,ul.promise,ol.path{grid-template-columns:1fr}
  .wrap.two>*{min-width:0}   /* a grid child must be allowed to shrink, or the hero card pushes the column wide */
  .trust{grid-template-columns:1fr;gap:6px;font-size:14px}   /* two max-content columns overflow a phone */
  .hero-card{max-width:100%}ul.trust li{min-width:0}
  ul.feats{grid-template-columns:1fr 1fr}
  .hero-card{transform:none;animation:none}
  .e-body{grid-template-columns:1fr}
  .hw{padding:16px}
  .chat{min-height:380px}
  .log{max-height:360px}
  .hud{bottom:10px;font-size:13px}.hud .h-name{display:none}
  .chapter[data-side=center] .panel{text-align:left;align-items:stretch}
  .chapter[data-world=words] .panel{justify-content:flex-start}
  .plans.two{grid-template-columns:1fr}
  .seg button{min-height:44px;min-width:48px}
  .kidname span,.hw-meta{font-size:14px}
  .msg{max-width:90%}
  .btn{flex:1 1 100%}
}
@media (min-width:860px) and (max-width:1100px){ul.feats{grid-template-columns:1fr 1fr}.e-body{grid-template-columns:260px 1fr}}
.extras{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;max-width:900px;margin:10px auto 0}
.extras>div{background:color-mix(in srgb,var(--bg) 92%,transparent);border-radius:20px;padding:20px 22px;border:1.5px dashed color-mix(in srgb,var(--ink) 22%,transparent)}
.extras h3{font:600 18px/1.2 var(--serif);margin:0 0 10px}.extras ul{margin:0;padding-left:18px}.extras li{margin:0 0 8px}.extras li span{opacity:.75;font-size:15px}.extras p{margin:0;opacity:.85}
@media (max-width:859px){.extras{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.chapter .panel,.chapter .panel>*{transition:none;filter:none}.hero-card{animation:none}.scrollhint::after,.typing::after{animation:none}}

.chapter.flat .panel{padding-bottom:130px}
.chapter.flat{scroll-margin-top:70px}