/* ===== Polices hébergées localement (aucun appel à un service tiers) ===== */
@font-face{font-family:"Atkinson Hyperlegible";font-weight:400;font-style:normal;font-display:swap;src:url(/vendor/fonts/atkinson-hyperlegible-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:700;font-style:normal;font-display:swap;src:url(/vendor/fonts/atkinson-hyperlegible-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Atkinson Hyperlegible";font-weight:400;font-style:italic;font-display:swap;src:url(/vendor/fonts/atkinson-hyperlegible-latin-400-italic.woff2) format("woff2")}
@font-face{font-family:"Caveat";font-weight:500;font-display:swap;src:url(/vendor/fonts/caveat-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Caveat";font-weight:700;font-display:swap;src:url(/vendor/fonts/caveat-latin-700-normal.woff2) format("woff2")}

:root{
  box-sizing:border-box;
  --chrome:#EEF2F6; --panel:#FFFFFF; --ink:#16243A; --muted:#536276; --line:#D3DBE5;
  --stage:#DCE3EB; --accent:#F2C230; --accent-soft:#FCEFC0; --danger:#B3261E; --ok:#1E7A4A; --focus:#1F5BD8; --hover:#E6ECF3;
  --ui:"Atkinson Hyperlegible","Segoe UI",system-ui,-apple-system,sans-serif;
  --hand:"Caveat","Segoe Print","Comic Sans MS",cursive;
}
@media (prefers-color-scheme:dark){
  :root{--chrome:#111925;--panel:#1A2433;--ink:#E6EDF6;--muted:#A2B1C3;--line:#2B394C;--stage:#0B1119;--accent-soft:#3A3318;--danger:#F2867E;--ok:#6FD39C;--focus:#8DB4FF;--hover:#233046}
}
*,*::before,*::after{box-sizing:inherit}
html{height:100%}
body{margin:0;min-height:100%;background:var(--chrome);color:var(--ink);font-family:var(--ui);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--focus)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.hidden{display:none !important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
svg.i{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--panel);padding:8px 12px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* ===== Boutons & champs ===== */
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:9px 16px;min-height:44px;text-decoration:none;color:var(--ink)}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--ink);color:var(--panel);border-color:var(--ink);font-weight:700}
.btn.danger{color:var(--danger);border-color:var(--danger)}
.btn.small{min-height:36px;padding:6px 12px;font-size:14px}
.btn[disabled]{opacity:.5;cursor:default}
.iconbtn{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;border:0;background:transparent;border-radius:8px;color:var(--muted);flex:none}
.iconbtn:hover{background:var(--hover);color:var(--ink)}
.iconbtn.danger-armed{background:var(--danger);color:#fff;padding:0 10px;font-size:14px;font-weight:700}
.field{display:grid;gap:6px;margin-bottom:16px}
.field label{font-weight:700;font-size:15px}
.field .hint{font-size:14px;color:var(--muted)}
.input,select.input,textarea.input{width:100%;border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:10px 12px;min-height:44px}
textarea.input{min-height:160px;resize:vertical}
.input:focus{border-color:var(--focus);outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--focus) 25%,transparent)}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>.field{flex:1;min-width:140px}
.error{color:var(--danger);font-weight:700;margin:0 0 12px}

/* ===== En-tête de l'application ===== */
.appbar{display:flex;align-items:center;gap:8px;padding:10px 20px;background:var(--panel);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-family:var(--hand);font-weight:700;font-size:38px;line-height:1;margin-right:18px;color:var(--ink);text-decoration:none;position:relative;z-index:0}
.brand::after{content:"";position:absolute;left:-4px;right:-6px;bottom:2px;height:10px;background:var(--accent);opacity:.6;z-index:-1;border-radius:6px 2px 7px 3px;transform:rotate(-1.5deg)}
.appnav{display:flex;gap:4px;flex:1;flex-wrap:wrap}
.appnav a{padding:8px 14px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:700}
.appnav a:hover{background:var(--hover)}
.appnav a[aria-current="page"]{background:var(--accent-soft);box-shadow:inset 0 -3px 0 var(--accent)}
.who{font-size:14px;color:var(--muted);margin-right:4px}
main.wrap{max-width:1240px;margin:0 auto;padding:28px 20px 64px}
h1.page-title{font-size:28px;margin:0 0 4px}
.lead{color:var(--muted);margin:0 0 24px}

/* ===== Connexion ===== */
.auth{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{width:100%;max-width:440px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:32px}
.auth-card .brand{font-size:64px;display:inline-block;margin-bottom:12px}
.auth-card h1{font-size:22px;margin:0 0 20px}
.auth-card .alt{margin-top:18px;font-size:15px;color:var(--muted)}

/* ===== Bibliothèque ===== */
.lib{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start}
@media (max-width:820px){.lib{grid-template-columns:1fr}}
.tree{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px;position:sticky;top:12px}
.tree h2{font-size:15px;margin:4px 8px 8px;color:var(--muted)}
.tree ul{list-style:none;margin:0;padding:0}
.tree ul ul{padding-left:16px}
.tnode{display:flex;align-items:center;gap:8px;width:100%;border:0;background:transparent;border-radius:8px;padding:8px 10px;text-align:left}
.tnode:hover{background:var(--hover)}
.tnode[aria-current="true"]{background:var(--accent-soft);font-weight:700}
.tnode.drop{outline:2px dashed var(--focus)}
.tree .newf{margin:8px 4px 2px;width:calc(100% - 8px);justify-content:center}
.libtools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.libtools .input{width:auto;flex:1;min-width:180px}
.libhead{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap}
.libhead h1{margin:0;font-size:26px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.rcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.rcard .open{display:block;border:0;background:transparent;padding:0;text-align:left;text-decoration:none;color:inherit}
.rcard .cover{aspect-ratio:16/10;background:var(--chrome);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.rcard .cover img{width:100%;height:100%;object-fit:cover;object-position:top}
.rcard .badge{position:absolute;left:8px;top:8px;background:var(--ink);color:var(--panel);font-size:12px;font-weight:700;padding:2px 8px;border-radius:999px}
.rcard .ext{font-family:var(--hand);font-size:44px;font-weight:700;color:var(--muted)}
.rcard .meta{padding:10px 8px 8px 12px;display:flex;align-items:flex-start;gap:2px}
.rcard .tt{flex:1;min-width:0}
.rcard .title{font-weight:700;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.rcard .sub{font-size:13px;color:var(--muted)}
.empty{border:2px dashed var(--line);border-radius:16px;padding:48px 24px;text-align:center;color:var(--muted)}
.dropzone-active{outline:3px dashed var(--focus);outline-offset:8px;border-radius:12px}

/* ===== Dialogues ===== */
dialog{border:1px solid var(--line);border-radius:16px;padding:0;background:var(--panel);color:var(--ink);width:min(560px,94vw);box-shadow:0 20px 60px rgba(0,0,0,.3)}
dialog::backdrop{background:rgba(10,18,30,.5)}
dialog form{padding:24px}
dialog h2{margin:0 0 16px;font-size:21px}
.dlg-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:8px;flex-wrap:wrap}

/* ===== Classes ===== */
.classes{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:start}
@media (max-width:820px){.classes{grid-template-columns:1fr}}
.clist{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px}
.clist button.citem{display:flex;justify-content:space-between;width:100%;border:0;background:transparent;border-radius:8px;padding:10px 12px;text-align:left}
.clist button.citem:hover{background:var(--hover)}
.clist button.citem[aria-current="true"]{background:var(--accent-soft);font-weight:700}
.clist .count{color:var(--muted);font-size:14px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.panel+.panel{margin-top:18px}
.panel h2{margin:0 0 14px;font-size:20px}
table.tbl{width:100%;border-collapse:collapse}
.tbl th,.tbl td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl th{font-size:14px;color:var(--muted)}
.tbl code{font-size:15px;background:var(--chrome);padding:2px 6px;border-radius:6px}
.tblwrap{overflow-x:auto}
.creds{border:2px solid var(--accent);background:var(--accent-soft)}
.cards-print{display:none}

/* ===== Toast ===== */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:var(--panel);padding:10px 16px;border-radius:10px;font-size:15px;z-index:90;max-width:90vw;box-shadow:0 8px 24px rgba(0,0,0,.25)}

/* ===== Impression des identifiants élèves ===== */
@media print{
  body{background:#fff;color:#000}
  body.printing>*{display:none !important}
  body.printing .cards-print{display:grid !important;grid-template-columns:1fr 1fr;gap:10mm}
  .cards-print .pc{border:1px dashed #555;border-radius:4mm;padding:6mm;break-inside:avoid;font-family:var(--ui)}
  .cards-print .pc b{display:block;font-size:14pt;margin-bottom:3mm}
  .cards-print .pc span{display:block;font-size:12pt}
}
@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important}}

/* ===== Partage (phase 2) ===== */
.sh-h{font-size:15px;margin:0 0 8px;color:var(--muted)}
.sh-list{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:6px}
.sh-list li{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:10px;padding:6px 6px 6px 12px}
.sh-list li span{flex:1}
.sh-list .kind{flex:none;font-size:12px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--chrome);color:var(--muted)}
.sh-list .none{border-style:dashed;color:var(--muted);padding:10px 12px}
.sh-add{display:grid;gap:6px;margin-bottom:12px}
.sh-add label{font-weight:700;font-size:15px}
.sh-row{display:flex;gap:8px;margin-bottom:8px}
.sh-row .input{flex:1}
.rcard .shared{position:absolute;right:8px;top:8px;background:var(--accent);color:#16243A;font-size:12px;font-weight:700;padding:2px 8px;border-radius:999px}
.rcard .new{position:absolute;right:8px;top:8px;background:var(--accent);color:#16243A;font-size:12px;font-weight:700;padding:2px 8px;border-radius:999px}
.rcard .owner{font-size:13px;color:var(--muted)}