:root{
  --bleu:#3B6FD4;
  --bleu-clair:#7FB3F0;
  --menthe:#8FD4B4;
  --turquoise:#4DC9B8;
  --jaune:#FBB03B;
  --corail:#F5757A;

  --accent:#3B6FD4;
  --encre:#17304F;
  --encre-doux:#5F7191;
  --papier:#F4F8FD;
  --ciel:#E8F1FD;
  --ciel-fonce:#D3E4F8;
  --blanc:#FFFFFF;
  --trait:#DFE9F6;
  --trait-fin:#EDF3FB;
  --vert:#2E9A73;
  --rouge:#DE4E56;

  --ui:'Instrument Sans',system-ui,sans-serif;
  --titre:'Bricolage Grotesque',system-ui,sans-serif;
  --logo:'Fredoka','Bricolage Grotesque',sans-serif;
  --base:16px;
  --r:18px;
  --ombre-haute:0 24px 64px rgba(23,48,79,.18);
  --ombre-ciel:0 2px 18px rgba(59,111,212,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html{font-size:var(--base)}
body{
  font-family:var(--ui);background:var(--papier);color:var(--encre);
  display:flex;min-height:100vh;line-height:1.55;-webkit-font-smoothing:antialiased;
  font-feature-settings:'ss01';
}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
svg.ico{width:19px;height:19px;flex:none;stroke-width:1.6;fill:none;stroke:currentColor;
        stroke-linecap:round;stroke-linejoin:round}

/* ---------- Navigation ---------- */
nav{
  width:244px;flex-shrink:0;background:var(--blanc);display:flex;flex-direction:column;
  padding:20px 12px;position:sticky;top:0;height:100vh;border-right:1px solid var(--trait);
}
.nav-haut{display:flex;align-items:center;gap:4px;margin-bottom:2px}
.marque{
  display:flex;align-items:center;gap:10px;flex:1;min-width:0;padding:4px 6px 4px 10px;
  color:inherit;text-decoration:none;
}
.marque img{width:32px;height:auto;display:block;flex-shrink:0}
.marque span{font-family:var(--logo);font-size:1.62rem;font-weight:600;letter-spacing:.005em;line-height:1.25;padding:.04em 0;color:var(--accent)}
.marque-sous{padding:0 10px 20px;font-size:.74rem;color:var(--encre-doux);white-space:nowrap}

#onglets{display:flex;flex-direction:column}
#onglets a{
  display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  padding:9px 12px;margin-bottom:1px;background:none;border:0;border-radius:11px;
  color:var(--encre-doux);font:inherit;font-size:.9rem;font-weight:500;cursor:pointer;
  transition:background .15s,color .15s;white-space:nowrap;overflow:hidden;
  text-decoration:none;position:relative;
}
#onglets em,.quitter em{font-style:normal}
#onglets a:hover{background:var(--papier);color:var(--encre)}
#onglets a.actif{color:var(--encre);font-weight:600}
#onglets a.actif svg{color:var(--c)}
#onglets a.actif::before{
  content:'';position:absolute;left:0;width:3px;height:19px;border-radius:0 3px 3px 0;background:var(--c);
}
.nav-pied{margin-top:auto;padding-top:12px;border-top:1px solid var(--trait)}
.qui{padding:2px 12px 10px;font-size:.76rem;color:var(--encre-doux);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.qui b{display:block;color:var(--encre);font-size:.86rem;font-weight:600}
.quitter{
  display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  padding:9px 12px;background:none;border:0;border-radius:11px;font:inherit;font-size:.9rem;font-weight:500;
  color:var(--encre-doux);cursor:pointer;text-decoration:none;
}
.quitter:hover{background:#FCF2F3;color:var(--rouge)}

/* ---------- Structure ---------- */
main{flex:1;min-width:0;padding:40px 46px 96px}
.entete{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:30px;flex-wrap:wrap}
h1{font-family:var(--titre);font-size:2.6rem;font-weight:700;line-height:1.04;letter-spacing:-.035em}
.chapeau{color:var(--encre-doux);font-size:.92rem;margin-top:9px;max-width:58ch}
h2{font-family:var(--titre);font-size:1.1rem;font-weight:600;margin-bottom:14px;letter-spacing:-.018em}
h3{font-family:var(--titre);letter-spacing:-.02em}

/* ---------- Contrôles ---------- */
button.b,a.b{
  font:inherit;font-size:.86rem;font-weight:600;padding:9px 17px;border-radius:11px;
  border:1px solid var(--trait);background:var(--blanc);color:var(--encre);cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;text-decoration:none;
  transition:border-color .15s,background .15s,color .15s;
}
button.b:hover,a.b:hover{border-color:var(--encre-doux)}
button.b.plein,a.b.plein{background:var(--accent);border-color:var(--accent);color:#fff}
button.b.plein:hover,a.b.plein:hover{filter:brightness(1.09)}
button.b.danger,a.b.danger{color:var(--rouge);border-color:var(--trait)}
button.b.danger:hover,a.b.danger:hover{border-color:var(--rouge);background:#FDF5F6}
button.b.mini,a.b.mini{padding:6px 12px;font-size:.79rem;border-radius:9px}
button.b:disabled{opacity:.45;cursor:not-allowed}
input,select,textarea{
  font:inherit;font-size:.9rem;padding:10px 13px;border:1px solid var(--trait);
  border-radius:11px;background:var(--blanc);color:var(--encre);width:100%;
  transition:border-color .15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none}
textarea{resize:vertical;min-height:82px;line-height:1.6}
label{display:block;font-size:.79rem;font-weight:600;color:var(--encre-doux);margin-bottom:6px}
.champ{margin-bottom:16px}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form .erreur{color:var(--rouge);font-size:.82rem;margin-top:4px}
.flash{padding:12px 16px;border-radius:11px;margin-bottom:20px;font-size:.87rem;font-weight:500}
.flash.succes{background:#EAF7F1;color:var(--vert)}
.flash.erreur{background:#FDF0F1;color:var(--rouge)}

/* ---------- Surfaces ---------- */
.carte{background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);padding:22px}
.vide{
  background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);
  padding:56px 28px;text-align:center;color:var(--encre-doux);font-size:.91rem;
}
.vide strong{display:block;font-family:var(--titre);color:var(--encre);font-size:1.3rem;
             margin-bottom:9px;font-weight:600;letter-spacing:-.02em}

/* ---------- Familles ---------- */
.familles{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.famille h3{font-size:1.2rem;font-weight:600;margin-bottom:3px}
.famille .meta{font-size:.78rem;color:var(--encre-doux);margin-bottom:16px}
.eleve{
  display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:11px 0;border-top:1px solid var(--trait-fin);font-size:.89rem;font-weight:500;
}
.eleve .niv{color:var(--encre-doux);font-size:.79rem;font-weight:400}
.actions-carte{display:flex;gap:7px;margin-top:16px;flex-wrap:wrap}
.lien-invit{
  margin-top:16px;padding:11px 13px;border-radius:11px;font-size:.75rem;
  background:var(--papier);color:var(--encre-doux);word-break:break-all;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.lien-invit a{color:var(--accent);text-decoration:none}
.lien-invit a:hover{text-decoration:underline}

/* ---------- Emploi du temps ---------- */
.avert{background:var(--blanc);border:1px solid var(--trait);border-left:2.5px solid var(--corail);
       padding:14px 18px;border-radius:0 13px 13px 0;font-size:.85rem;line-height:1.65;margin-bottom:24px}
.grille{
  display:grid;grid-template-columns:58px repeat(7,minmax(0,1fr));
  background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);overflow:hidden;
}
.jour-tete{padding:13px 6px;text-align:center;font-size:.8rem;font-weight:600;
           font-family:var(--titre);border-bottom:1px solid var(--trait)}
.coin{border-bottom:1px solid var(--trait);border-right:1px solid var(--trait)}
.heures{padding-top:1px;border-right:1px solid var(--trait)}
.heure{height:56px;font-size:.7rem;color:var(--encre-doux);text-align:right;padding:1px 9px 0 0;
       font-variant-numeric:tabular-nums}
.colonne{
  position:relative;
  background:repeating-linear-gradient(to bottom,transparent 0,transparent 55px,var(--trait-fin) 55px,var(--trait-fin) 56px);
  box-shadow:inset 1px 0 0 var(--trait-fin);
}
.cours{
  position:absolute;left:3px;right:3px;border-radius:10px;padding:7px 10px;overflow:hidden;
  background:color-mix(in srgb,var(--accent) 12%,#fff);font-size:.76rem;line-height:1.35;
  box-shadow:inset 2.5px 0 0 var(--accent);transition:background-color .16s;text-decoration:none;
  display:block;color:inherit;border:0;font-family:inherit;text-align:left;cursor:pointer;
}
.cours:hover{background:color-mix(in srgb,var(--accent) 19%,#fff)}
.cours b{display:block;font-family:var(--titre);font-weight:600;font-size:.85rem;letter-spacing:-.01em;
         color:color-mix(in srgb,var(--accent) 72%,#000)}
.cours span{color:var(--encre-doux);font-variant-numeric:tabular-nums}
.aide-grille{font-size:.79rem;color:var(--encre-doux);margin:-18px 0 18px}

/* ---------- Panneau "Ta semaine" (accueil) ---------- */
.panneau{
  background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);padding:26px 28px;
  box-shadow:var(--ombre-ciel);
}
.panneau-tete{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px}
.panneau-tete h2{margin:0;display:flex;align-items:center;gap:9px;font-size:1.04rem}
.panneau-tete h2::before{content:'';width:9px;height:9px;border-radius:2px;background:var(--g,var(--bleu-clair))}

.board{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
.board-jour{display:flex;flex-direction:column;gap:6px;min-width:0}
.board-nom{font-family:var(--titre);font-size:.78rem;font-weight:600;color:var(--encre-doux);
           padding:0 0 6px 2px;border-bottom:1px solid var(--trait)}
.board-jour.auj .board-nom{color:var(--accent)}
.board-corps{display:flex;flex-direction:column;gap:5px;min-height:112px;padding-top:4px}
.board-jour.auj .board-corps{
  background:color-mix(in srgb,var(--menthe) 16%,#fff);border-radius:11px;
  margin:0 -6px;padding:6px;min-height:104px;
}
.puce-cours{
  background:#fff;border-radius:9px;padding:7px 9px;font-size:.73rem;line-height:1.3;
  box-shadow:inset 2.5px 0 0 var(--accent);text-decoration:none;display:block;color:inherit;
}
.puce-cours b{display:block;font-family:var(--titre);font-weight:600;font-size:.79rem;
              letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.puce-cours small{color:var(--encre-doux);font-variant-numeric:tabular-nums}
.grains-jour{display:flex;flex-direction:column;gap:5px;padding-top:2px}
.grains-jour i{height:9px;border-radius:2px;background:rgba(59,111,212,.09);display:block}

.chiffres{display:grid;grid-template-columns:repeat(3,1fr);margin-top:26px;padding-top:22px;
          border-top:1px solid var(--trait)}
.chiffres div{padding:0 18px}
.chiffres div+div{border-left:1px solid var(--trait)}
.chiffres div:first-child{padding-left:0}
.chiffres b{display:block;font-family:var(--titre);font-size:2.15rem;font-weight:700;line-height:1.05;
            letter-spacing:-.04em;font-variant-numeric:tabular-nums;color:var(--encre)}
.chiffres small{font-size:.76rem;color:var(--encre-doux)}

.acc{
  margin:-40px -46px -96px;padding:44px 46px 90px;min-height:calc(100vh - 0px);
  background:
    radial-gradient(72% 46% at 6% 0%, var(--ciel-fonce) 0%, transparent 62%),
    radial-gradient(58% 44% at 96% 8%, color-mix(in srgb,var(--menthe) 34%,#fff) 0%, transparent 60%),
    radial-gradient(70% 40% at 88% 96%, color-mix(in srgb,var(--bleu-clair) 26%,#fff) 0%, transparent 64%),
    linear-gradient(180deg,var(--ciel) 0%, #F4F9FE 46%, var(--papier) 100%);
}
.acc-tete{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;
          flex-wrap:wrap;margin-bottom:36px}
.acc-mot{display:flex;align-items:center;gap:19px}
.acc-mot img{width:64px;height:auto;display:block}
.acc-nom{font-family:var(--logo);font-weight:600;font-size:4.5rem;line-height:1.12;
         letter-spacing:.01em;color:var(--encre);display:block;padding:.04em 0}
.acc-devise{font-family:var(--titre);font-size:1.3rem;font-weight:500;letter-spacing:-.024em;
            color:#3E5D8C;margin-top:12px}
.acc-date{font-family:var(--titre);font-size:.95rem;font-weight:500;color:var(--encre-doux);
          text-transform:none;padding-bottom:6px}

.acc-duo{display:grid;grid-template-columns:1.32fr 1fr;gap:16px;margin-bottom:16px;align-items:start}
.actu-titre{font-family:var(--titre);font-size:1.82rem;font-weight:600;line-height:1.16;
            letter-spacing:-.032em;margin-bottom:15px;color:var(--encre)}
.actu-texte{font-size:.95rem;line-height:1.75;color:#42597C}

.prochain{
  display:flex;align-items:center;gap:15px;padding:12px 0;border-top:1px solid var(--trait-fin);
  text-decoration:none;color:inherit;transition:padding-left .18s cubic-bezier(.2,.85,.3,1);
}
.prochain:first-of-type{border-top:0;padding-top:0}
.prochain:hover{padding-left:7px}
.prochain-h{min-width:50px}
.prochain-h b{display:block;font-family:var(--titre);font-size:1rem;font-weight:600;
              font-variant-numeric:tabular-nums;color:var(--encre)}
.prochain-h small{font-size:.68rem;color:var(--encre-doux)}
.prochain-t b{display:block;font-size:.9rem;font-weight:600}
.prochain-t small{font-size:.77rem;color:var(--encre-doux)}

.index{display:grid;grid-template-columns:repeat(auto-fit,minmax(184px,1fr));gap:12px}
.tuile{
  font:inherit;text-align:left;text-decoration:none;cursor:pointer;padding:20px;position:relative;display:block;
  background:rgba(255,255,255,.78);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.9);border-radius:18px;box-shadow:var(--ombre-ciel);
  transition:transform .18s cubic-bezier(.2,.85,.3,1),background .18s;
}
.tuile:hover{transform:translateY(-3px);background:#fff}
.tuile svg{color:var(--t);margin-bottom:13px;width:21px;height:21px}
.tuile b{display:block;font-family:var(--titre);font-size:.97rem;font-weight:600;
         letter-spacing:-.02em;color:var(--encre)}
.tuile small{font-size:.76rem;color:var(--encre-doux)}
.tuile::after{content:'';position:absolute;top:20px;right:20px;width:8px;height:8px;
              border-radius:2px;background:var(--t);opacity:.35;transition:opacity .18s}
.tuile:hover::after{opacity:1}

/* ---------- Messages ---------- */
.messagerie{
  display:grid;grid-template-columns:264px 1fr;background:var(--blanc);
  border:1px solid var(--trait);border-radius:var(--r);overflow:hidden;height:634px;
  box-shadow:var(--ombre-ciel);
}
.convs{border-right:1px solid var(--trait);overflow-y:auto;padding:10px 8px;background:var(--papier)}
.conv{
  display:flex;align-items:center;gap:11px;padding:9px 10px;border-radius:13px;cursor:pointer;
  margin-bottom:2px;transition:background .15s;text-decoration:none;color:inherit;
}
.conv:hover{background:var(--blanc)}
.conv[aria-current="true"]{background:var(--blanc);box-shadow:var(--ombre-ciel),inset 2.5px 0 0 var(--accent)}
.conv-corps{min-width:0;flex:1}
.conv-nom{display:block;font-size:.87rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv small{display:block;color:var(--encre-doux);font-size:.74rem;margin-top:1px;font-weight:400;
            white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv-avatar{
  width:37px;height:37px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--titre);font-weight:700;font-size:.92rem;color:#fff;letter-spacing:0;
}
.fil{display:flex;flex-direction:column;min-width:0;background:var(--blanc)}
.fil-seul{
  background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);
  overflow:hidden;height:634px;display:flex;flex-direction:column;box-shadow:var(--ombre-ciel);
}
.fil-tete{padding:13px 22px;border-bottom:1px solid var(--trait);display:flex;align-items:center;gap:12px}
.fil-tete .conv-avatar{width:40px;height:40px;font-size:.98rem}
.fil-tete-info{min-width:0}
.fil-tete-info strong{display:block;font-family:var(--titre);font-size:1.02rem;font-weight:600;letter-spacing:-.02em}
.fil-tete-info small{display:block;color:var(--encre-doux);font-size:.76rem;margin-top:1px}
.bulles{flex:1;overflow-y:auto;padding:22px;display:flex;flex-direction:column;gap:10px;background:var(--papier)}
.bulle{
  max-width:68%;padding:11px 15px;border-radius:17px;font-size:.88rem;line-height:1.55;
  white-space:pre-wrap;word-wrap:break-word;
}
.bulle.moi{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:5px;
           box-shadow:0 3px 10px rgba(59,111,212,.22)}
.bulle.eux{align-self:flex-start;background:var(--blanc);border:1px solid var(--trait);border-bottom-left-radius:5px;
           box-shadow:0 1px 3px rgba(23,48,79,.05)}
.bulle .horo{display:block;font-size:.67rem;opacity:.55;margin-top:6px;font-variant-numeric:tabular-nums}
.bulle a{color:inherit}
.composer{border-top:1px solid var(--trait);padding:14px 18px;display:flex;gap:10px;
          align-items:flex-end;background:var(--blanc)}
.composer textarea{
  flex:1;min-height:44px;max-height:140px;margin:0;border-radius:20px;padding:11px 18px;
  resize:none;background:var(--papier);border:1px solid transparent;transition:border-color .15s,background-color .15s;
}
.composer textarea:focus{background:var(--blanc);border-color:var(--accent)}
.btn-envoyer{
  width:42px;height:42px;flex-shrink:0;border-radius:50%;border:0;padding:0;cursor:pointer;
  background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;
  transition:filter .15s,transform .1s;
}
.btn-envoyer:hover{filter:brightness(1.08)}
.btn-envoyer:active{transform:scale(.94)}
.btn-envoyer svg{width:18px;height:18px}

/* ---------- Exercices ---------- */
.exos{display:grid;grid-template-columns:repeat(auto-fill,minmax(278px,1fr));gap:16px}
.exo-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:.74rem;font-weight:600;
  color:var(--encre-doux);margin-bottom:11px;
}
.exo-tag::before{content:'';width:8px;height:8px;border-radius:2px;background:var(--bleu-clair)}
.exo-tag.qcm::before{background:var(--jaune)}
.question{border:1px solid var(--trait);border-radius:13px;padding:17px;margin-bottom:12px;background:var(--blanc)}
.question-tete{display:flex;justify-content:space-between;align-items:center;margin-bottom:11px}
.question-tete b{font-family:var(--titre);font-size:.88rem;color:var(--encre-doux);letter-spacing:-.01em}
.choix{display:flex;align-items:center;gap:10px;margin-bottom:8px;padding:4px 8px;margin-left:-8px;margin-right:-8px;border-radius:9px;transition:background-color .2s}
.choix input[type=radio]{width:auto;flex-shrink:0;accent-color:var(--accent)}
.choix input[type=text],.choix input:not([type]){margin:0}
.choix.reponse-correcte{background:color-mix(in srgb,var(--menthe) 26%,#fff)}
.choix.reponse-fausse{background:color-mix(in srgb,var(--corail) 20%,#fff)}
.correction{
  background:var(--papier);border-left:2.5px solid var(--vert);padding:12px 15px;
  border-radius:0 11px 11px 0;font-size:.87rem;margin-top:12px;white-space:pre-wrap;
}
.correction.faux{border-left-color:var(--corail)}

/* ---------- Le Mur ---------- */
.mur{columns:3 296px;column-gap:16px}
.pub{
  background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);padding:20px;
  break-inside:avoid;margin-bottom:16px;
}
.pub-tete{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:13px}
.pub-genre{display:inline-flex;align-items:center;gap:7px;font-size:.74rem;font-weight:600;color:var(--encre-doux)}
.pub-genre::before{content:'';width:8px;height:8px;border-radius:2px;background:var(--g)}
.pub-dest{font-size:.71rem;color:var(--encre-doux);text-align:right}
.pub-image{width:100%;border-radius:11px;margin-bottom:14px;display:block}
.pub h3{font-size:1.14rem;font-weight:600;margin-bottom:9px;line-height:1.28}
.pub-texte{font-size:.88rem;line-height:1.65;color:#3B475F;white-space:pre-wrap}
.pub-reponse{margin-top:13px;background:var(--papier);border-radius:11px;padding:12px 15px;font-size:.86rem}
.pub-reponse summary{cursor:pointer;font-weight:600;color:var(--encre)}
.pub-reponse[open] summary{margin-bottom:7px}
.pub-lien{display:block;margin-top:11px;font-size:.81rem;color:var(--accent);word-break:break-all}
.pub-pied{display:flex;justify-content:space-between;align-items:center;margin-top:17px;
          padding-top:13px;border-top:1px solid var(--trait-fin);font-size:.73rem;color:var(--encre-doux)}

/* ---------- Fenêtre modale (élément <dialog>) ---------- */
dialog.modale{
  position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);margin:0;
  border:0;border-radius:var(--r);padding:0;width:92vw;max-width:560px;max-height:85vh;
  box-shadow:var(--ombre-haute);background:var(--blanc);
}
dialog.modale::backdrop{background:rgba(23,48,79,.45)}
dialog.modale .modale-corps{padding:28px;max-height:82vh;overflow-y:auto}
dialog.modale h2{margin-bottom:18px}

/* ---------- Réglages ---------- */
.reglages{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;align-items:start}
.pastilles{display:flex;gap:8px;flex-wrap:wrap}
.pastille{width:30px;height:30px;border-radius:8px;border:2px solid transparent;cursor:pointer;padding:0;
          transition:transform .14s}
.pastille:hover{transform:translateY(-2px)}
.pastille[aria-pressed="true"]{border-color:var(--encre);box-shadow:0 0 0 2px #fff inset}
.note{font-size:.79rem;color:var(--encre-doux);line-height:1.65;margin-top:11px}

/* ---------- Auth ---------- */
.auth-page{width:100%;min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--papier)}
.auth-carte{width:100%;max-width:400px;background:var(--blanc);border:1px solid var(--trait);border-radius:var(--r);padding:36px;box-shadow:var(--ombre-ciel)}
.auth-carte .logo{display:flex;align-items:center;gap:12px;font-family:var(--logo);font-size:1.9rem;font-weight:600;color:var(--accent);margin-bottom:6px}
.auth-carte .logo img{width:40px;height:auto;display:block}
.auth-carte p.sous{color:var(--encre-doux);font-size:.88rem;margin-bottom:26px}
.auth-carte .pied{margin-top:20px;font-size:.85rem;color:var(--encre-doux);text-align:center}
.auth-carte .pied a{color:var(--accent);font-weight:600;text-decoration:none}

/* ---------- Sélecteur d'enfant (comptes-rendus famille, onglet élève côté prof) ---------- */
.famille-onglets{display:flex;gap:4px}
.famille-onglets a{
  padding:8px 14px;border-radius:10px;font-size:.88rem;font-weight:600;color:var(--encre-doux);
  text-decoration:none;transition:background .15s,color .15s;
}
.famille-onglets a:hover{background:var(--papier);color:var(--encre)}
.famille-onglets a.actif{background:var(--papier);color:var(--accent)}