/* LearnEZ — site vitrine. Mêmes couleurs que l'app (copie des variables de assets/css/app.css, sans dépendance croisée).
   Thème : celui choisi dans l'app (data-theme), sinon celui de l'appareil. Mobile d'abord. */
:root{
  --bg:#faf9f7; --surface:#ffffff; --surface-2:#f2f0ec; --ink:#1f2124; --ink-2:#5c6067; --line:#e6e3dd; --line-2:#efece7;
  --accent:#1f6b52; --accent-ink:#fff; --accent-soft:#e2efe9; --brand:#3D4ED8;
  --g1-bg:#8E1616; --g2-bg:#C2410C; --g3-bg:#047857; --forget:#c9412f;
  --shadow:0 1px 2px rgba(20,20,20,.04),0 6px 24px rgba(20,20,20,.06); --radius:14px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --bg:#18191b; --surface:#232427; --surface-2:#2a2b2f; --ink:#ebeae7; --ink-2:#a9acb1; --line:#34353a; --line-2:#28292c;
  --accent:#6cc79f; --accent-ink:#0f1a15; --accent-soft:#1f3a2e; --forget:#ef8a78;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 24px rgba(0,0,0,.25); color-scheme:dark}}
:root[data-theme=dark]{
  --bg:#18191b; --surface:#232427; --surface-2:#2a2b2f; --ink:#ebeae7; --ink-2:#a9acb1; --line:#34353a; --line-2:#28292c;
  --accent:#6cc79f; --accent-ink:#0f1a15; --accent-soft:#1f3a2e; --forget:#ef8a78;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 24px rgba(0,0,0,.25); color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Inter","Segoe UI",Roboto,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--accent)}
img,svg{max-width:100%}
h1,h2,h3{line-height:1.2;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(32px,7vw,54px)}
h2{font-size:clamp(26px,4.6vw,38px)}
h3{font-size:18px}
p{margin:0 0 1em}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
.narrow{max-width:760px}
.muted{color:var(--ink-2)} .small{font-size:14px}
.center{text-align:center;margin-left:auto;margin-right:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:8px;top:-60px;z-index:100;background:var(--surface);padding:8px 12px;border-radius:8px}
.skip:focus{top:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
[hidden]{display:none!important}
.staging{position:fixed;top:0;left:50%;transform:translateX(-50%);z-index:1000;background:#b7791f;color:#fff;font:600 11px/1 system-ui,sans-serif;letter-spacing:.1em;padding:4px 10px;border-radius:0 0 8px 8px;pointer-events:none}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:9px 15px;font:inherit;font-weight:600;font-size:15px;text-decoration:none;white-space:nowrap;cursor:pointer;line-height:1.3;text-align:center}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.light{background:#fff;color:#16503d}
.btn:hover{filter:brightness(.96)}
.btn.big{padding:13px 22px;font-size:17px;border-radius:12px}
.link{color:var(--ink);font-weight:600}

/* En-tête fixe */
.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line-2)}
.top-in{display:flex;align-items:center;gap:12px;height:64px}
.logo{display:inline-flex;align-items:center;gap:9px;font-weight:750;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.logo-d{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .logo-l{display:none}:root:not([data-theme=light]) .logo-d{display:inline}}
:root[data-theme=dark] .logo-l{display:none} :root[data-theme=dark] .logo-d{display:inline}
.nav{display:none;gap:20px;margin-left:24px}
.nav a{color:var(--ink-2);text-decoration:none;font-weight:550;white-space:nowrap}
.nav a:hover{color:var(--ink)}
.top-act{margin-left:auto;display:flex;align-items:center;gap:8px}
.lang{background:none;border:0;color:var(--ink-2);font:inherit;font-size:14px;font-weight:600;padding:8px 6px;cursor:pointer}
.lang:hover{color:var(--ink)}
.mnav-box .lang-m{background:none;border:0;border-top:1px solid var(--line-2);margin-top:4px;padding:10px 12px;text-align:left;font:inherit;font-weight:550;color:var(--ink-2);cursor:pointer;border-radius:0 0 8px 8px}
@media (max-width:519px){.top .lang:not(.keep){display:none}} /* petit écran : la langue est dans le menu */
@media (min-width:1060px){.mnav-box .lang-m{display:none}}
.hide-sm{display:none}
.mnav{position:relative}
.mnav summary{list-style:none;cursor:pointer;width:40px;height:40px;display:grid;place-items:center;border-radius:10px;color:var(--ink)}
.mnav summary::-webkit-details-marker{display:none}
.mnav summary svg{width:22px;height:22px}
.mnav-box{position:absolute;right:0;top:46px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;display:flex;flex-direction:column;min-width:220px}
.mnav-box a{padding:10px 12px;border-radius:8px;color:var(--ink);text-decoration:none;font-weight:550}
.mnav-box a:hover{background:var(--surface-2)}
@media (min-width:640px){.hide-sm{display:inline-flex}}
@media (min-width:1060px){.nav{display:flex}.mnav{display:none}}

/* Héros */
.hero{padding:40px 0 48px}
.hero-in{display:grid;gap:36px;align-items:center}
.lead{font-size:clamp(17px,2.2vw,19px);color:var(--ink-2);max-width:620px}
.cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin:24px 0 14px}
@media (min-width:900px){.hero{padding:72px 0 80px}.hero-in{grid-template-columns:1.1fr .9fr}}

/* Aperçu de l'app */
.mock{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:16px;max-width:440px;justify-self:center;width:100%}
.mock-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2);margin-bottom:12px}
.mock-prog{flex:0 0 72px;height:6px;border-radius:9px;background:var(--surface-2);overflow:hidden}
.mock-prog i{display:block;width:40%;height:100%;background:var(--accent)}
.mock-card{border:1px solid var(--line-2);border-radius:16px;padding:34px 18px;text-align:center;font-size:21px}
.mock-card p{margin:0}
.mock-card hr{border:0;border-top:1px solid var(--line);margin:18px 0}
.mock-a{font-weight:700;color:var(--accent)}
.mock-btns{display:flex;gap:8px;margin-top:14px}
.g{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px;border-radius:12px;color:#fff;font-weight:650;font-size:14.5px}
.g kbd{font:11px ui-monospace,monospace;opacity:.8}
.g1{background:var(--g1-bg)} .g2{background:var(--g2-bg)} .g3{background:var(--g3-bg)}

/* Sections */
.sec{padding:56px 0}
.sec.alt{background:var(--surface-2)}
.sec h2{max-width:760px}
.kicker{color:var(--accent);font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
#licences .kicker,#licences h2,#faq h2{text-align:center;margin-left:auto;margin-right:auto}
@media (min-width:900px){.sec{padding:84px 0}}

/* Apprentissage espacé */
.srs{display:grid;gap:28px;margin-top:20px;align-items:center}
.srs-txt h3{margin-top:6px}
.chart{margin:0;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);padding:14px}
.chart svg{display:block;width:100%;height:auto}
.chart .axis{stroke:var(--line);stroke-width:2}
.chart .lbl{fill:var(--ink-2);font-size:14px;font-family:inherit}
.chart .lbl.forget{fill:var(--forget)} .chart .lbl.acc{fill:var(--accent);font-weight:600}
.chart path{fill:none;stroke-width:3;stroke-linecap:round}
.chart .c-forget{stroke:var(--forget);stroke-dasharray:7 7}
.chart .c-review{stroke:var(--accent)}
.chart .rev line{stroke:var(--accent);stroke-width:1.5;stroke-dasharray:3 5;opacity:.7}
.chart .dots circle{fill:var(--accent)}
.inapp{margin-top:28px;background:var(--accent-soft);border-radius:var(--radius);padding:20px}
.inapp p{margin:0}
@media (min-width:900px){.srs{grid-template-columns:1fr 1fr;gap:48px}}

/* Étapes */
.steps{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:16px}
.steps li{background:var(--surface);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.steps p{margin:0;color:var(--ink-2)}
.num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-weight:700;margin-bottom:12px}
@media (min-width:760px){.steps{grid-template-columns:repeat(3,1fr)}}

/* Captures de l'app */
.shots{display:flex;gap:16px;margin-top:36px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 16px 12px;margin-left:-16px;margin-right:-16px}
.shot{flex:0 0 min(72%,260px);margin:0;scroll-snap-align:center;text-align:center}
.shot img{display:block;width:100%;height:auto;border-radius:24px;border:6px solid var(--ink);box-shadow:var(--shadow);background:var(--surface)}
.shot figcaption{font-size:14px;color:var(--ink-2);margin-top:12px}
@media (min-width:760px){.shots{justify-content:center;overflow:visible;margin-left:0;margin-right:0;padding:4px 0}.shot{flex:0 1 260px}}

/* Fonctionnalités */
.tiles{display:grid;gap:14px;margin-top:24px}
.tile{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--radius);padding:20px}
.tile svg{width:28px;height:28px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-bottom:10px}
.tile p{margin:0;color:var(--ink-2);font-size:15px}
@media (min-width:640px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.tiles{grid-template-columns:repeat(3,1fr)}}

/* Enseignants */
.teach{display:grid;gap:28px;align-items:start}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checks li{background:var(--surface);border-radius:12px;padding:14px 16px 14px 46px;position:relative}
.checks li::before{content:"";position:absolute;left:16px;top:17px;width:18px;height:18px;border-radius:50%;background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/12px no-repeat}
@media (min-width:900px){.teach{grid-template-columns:1fr 1fr;gap:56px}}

/* Licences */
.plans{display:grid;gap:16px;margin-top:28px;align-items:stretch}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;position:relative}
.plan.featured{border:2px solid var(--accent);box-shadow:var(--shadow)}
.plan .badge{position:absolute;top:-13px;left:24px;background:var(--accent);color:var(--accent-ink);font-size:12.5px;font-weight:700;padding:3px 10px;border-radius:99px;margin:0}
.plan h3{font-size:22px;margin-bottom:2px}
.plan .for{color:var(--ink-2);font-size:14.5px;margin-bottom:12px}
.plan .price{font-size:26px;font-weight:750;margin-bottom:14px}
.plan ul{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:10px;flex:1;align-content:start}
.plan li{padding-left:28px;position:relative;font-size:15px}
.plan li::before{content:"";position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%}
.plan li.y::before{background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231f6b52' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/12px no-repeat}
.plan li.n{color:var(--ink-2)}
.plan li.n::before{background:var(--surface-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a9ea5' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M7 7l10 10M17 7L7 17'/%3E%3C/svg%3E") center/11px no-repeat}
.plan .btn{white-space:normal}
@media (min-width:900px){.plans{grid-template-columns:repeat(3,1fr)}}

/* FAQ */
#faq details{background:var(--surface);border-radius:12px;margin-top:10px;padding:0 18px}
#faq summary{cursor:pointer;font-weight:650;padding:15px 0;list-style:none;position:relative;padding-right:28px}
#faq summary::-webkit-details-marker{display:none}
#faq summary::after{content:"+";position:absolute;right:0;top:11px;font-size:22px;color:var(--ink-2);font-weight:400}
#faq details[open] summary::after{content:"−"}
#faq details p{color:var(--ink-2);padding-bottom:16px;margin:0}

/* Nous contacter */
.cform{display:grid;gap:14px;margin-top:20px;background:var(--surface);border:1px solid var(--line-2);border-radius:18px;padding:20px;box-shadow:var(--shadow)}
.cform label{display:grid;gap:6px;font-weight:600;font-size:14.5px}
.cform input,.cform select,.cform textarea{font:inherit;font-weight:400;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 12px;width:100%}
.cform textarea{resize:vertical;min-height:140px}
.cform-row{display:grid;gap:14px}
.cform-err{color:var(--forget);margin:0;min-height:0}
.cform-err:empty{display:none}
.cform-foot{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}
.cform-foot p{margin:0;flex:1;min-width:200px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden} /* champ piège pour les robots */
.cform-ok{margin-top:20px;background:var(--accent-soft);border-radius:18px;padding:24px}
.cform-ok p{margin:0}
@media (min-width:640px){.cform{padding:28px}.cform-row{grid-template-columns:1fr 1fr}}

/* Appel final */
.final{background:linear-gradient(135deg,#1f6b52,#16503d);color:#fff;text-align:center;padding:64px 0}
.final h2{color:#fff;margin-left:auto;margin-right:auto}
.final p{opacity:.9;margin-bottom:24px}

/* Pied de page */
.foot{padding:36px 0 calc(36px + env(safe-area-inset-bottom));border-top:1px solid var(--line-2)}
.foot-in{display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center}
.foot-links a{color:var(--ink-2);text-decoration:none}
.foot-links a:hover{color:var(--ink);text-decoration:underline}

/* Pages légales */
.legal{padding:40px 0 64px}
.legal h1{font-size:clamp(28px,5vw,40px)}
.legal h2{font-size:20px;margin-top:1.8em}
.legal p,.legal li{color:var(--ink-2)}
.legal .todo{background:#fff3cd;color:#664d03;border-radius:6px;padding:0 4px}