/* =========================================================
   Atelier HTML & CSS - feuille de style de l'interface
   Metaphore : le cahier quadrille (consigne) / l'ecran (code)
   ========================================================= */

:root{
  /* papier */
  --paper:#fdfdf8;
  --paper-2:#f5f4ec;
  --grid:#d5e3f0;
  --ink:#16283c;
  --ink-2:#5a6b7d;

  /* stylos */
  --rouge:#d94436;
  --rouge-pale:#fdeceb;
  --vert:#2f8f5b;
  --vert-pale:#e9f5ee;
  --bleu:#2b5fd9;
  --jaune:#ffd54a;

  /* ecran */
  --nuit:#0f1720;
  --nuit-2:#16202b;
  --nuit-3:#1e2a37;
  --nuit-txt:#d7e2ee;
  --nuit-dim:#7e91a5;

  /* coloration syntaxique */
  --c-tag:#7ee0a8;
  --c-name:#8fd3ff;
  --c-attr:#ffcf7a;
  --c-str:#ffa8a0;
  --c-com:#5c7185;
  --c-doc:#a892d6;
  --c-sel:#ffd166;
  --c-prop:#8fd3ff;
  --c-val:#c9f0a8;
  --c-punc:#6f8497;

  --r:12px;
  --shadow:0 10px 30px rgba(11,25,41,.16);
  --font-ui:"Segoe UI",system-ui,-apple-system,Roboto,sans-serif;
  --font-disp:"Bahnschrift","Segoe UI Semibold","Trebuchet MS",var(--font-ui);
  --font-code:"Cascadia Mono","Cascadia Code",Consolas,"SF Mono",Menlo,monospace;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font-ui);
  color:var(--ink);
  background:var(--nuit);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
button,input,textarea{font:inherit;color:inherit}
[hidden]{display:none !important}

/* ---------------------------------------------------------
   Accueil : demande du prenom
   --------------------------------------------------------- */
.gate{
  position:fixed;inset:0;z-index:60;
  display:grid;place-items:center;
  background:
    radial-gradient(900px 500px at 30% -10%,#1d3348 0%,transparent 60%),
    var(--nuit);
}
.gate-card{
  width:min(440px,90vw);
  background:var(--paper);
  border-radius:var(--r);
  padding:34px 34px 26px;
  box-shadow:0 24px 60px rgba(0,0,0,.45);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:100% 22px,22px 100%;
  border-left:6px solid var(--rouge);
  text-align:left;
}
.gate-mark{
  font-family:var(--font-code);font-size:13px;letter-spacing:.1em;
  color:var(--rouge);margin-bottom:14px;
}
.gate-title{font-family:var(--font-disp);font-size:31px;line-height:1.05;margin:0 0 4px;font-weight:600}
.gate-sub{margin:0 0 26px;color:var(--ink-2);font-size:14px}
.gate-label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.gate-input{
  width:100%;padding:11px 13px;border:2px solid #c8d4e0;border-radius:8px;
  background:#fff;font-size:18px;font-family:var(--font-disp);
}
.gate-input:focus{outline:none;border-color:var(--bleu);box-shadow:0 0 0 4px rgba(43,95,217,.15)}
.gate-err{color:var(--rouge);font-size:13px;margin:8px 0 0}
.gate-note{font-size:12px;color:var(--ink-2);margin:14px 0 0}
.gate .btn-go{width:100%;margin-top:16px;justify-content:center}

.gate-hello{margin:0 0 22px;font-size:14px;color:var(--ink-2)}
.gate-hello b{color:var(--ink);font-family:var(--font-disp);font-size:16px}
.gate-link{
  background:none;border:none;padding:0;margin-left:6px;cursor:pointer;
  color:var(--bleu);font-size:13px;text-decoration:underline;text-underline-offset:2px;
}
.gate-select{
  width:100%;padding:11px 13px;border:2px solid #c8d4e0;border-radius:8px;background:#fff;
  font-family:var(--font-disp);font-size:15px;cursor:pointer;
}
.gate-select:focus{outline:none;border-color:var(--bleu);box-shadow:0 0 0 4px rgba(43,95,217,.15)}
.gate-select option:disabled{color:#9aa8b6}
.gate-lock{
  margin:10px 0 0;font-size:12.5px;color:var(--ink-2);
  background:#fff8dd;border-left:3px solid var(--jaune);padding:7px 10px;border-radius:0 5px 5px 0;
}
.gate-exo{
  margin:10px 0 0;font-size:12.5px;line-height:18px;
  background:var(--vert-pale);border-left:3px solid var(--vert);
  padding:8px 11px;border-radius:0 5px 5px 0;color:#1d6b41;
}
.gate-exo b{font-family:var(--font-disp);font-size:14px;display:block;color:var(--vert)}
.gate-exo a{color:#1d6b41;font-weight:600}
.gate .gate-note{text-align:center}
.btn-exo{background:var(--rouge);color:#fff}
.btn-exo:hover{background:#c23a2d}

/* ---------------------------------------------------------
   Grille generale
   --------------------------------------------------------- */
.app{
  display:grid;
  grid-template-columns:minmax(430px,44fr) 56fr;
  height:100vh;
  gap:10px;padding:10px;
}
.col-left{display:grid;grid-template-rows:minmax(215px,28%) 1fr;gap:10px;min-width:0;min-height:0}
.col-right{min-width:0;min-height:0;display:flex}

/* ---------------------------------------------------------
   Consigne : la feuille de cahier
   --------------------------------------------------------- */
.brief{
  position:relative;
  background:var(--paper);
  border-radius:var(--r);
  padding:14px 18px 10px 26px;
  display:flex;flex-direction:column;min-height:0;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:100% 22px,22px 100%;
  overflow:hidden;
}
.brief::before{
  content:"";position:absolute;left:14px;top:0;bottom:0;width:2px;background:var(--rouge);opacity:.55;
}
/* Consignes et fiches : texte non selectionnable. L'eleve doit retaper le code,
   pas le copier-coller dans l'editeur. Son propre code reste copiable. */
.brief, .modal-card{
  -webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;
}
.brief input, .brief textarea{-webkit-user-select:text;user-select:text}

.brief-top{display:flex;align-items:flex-start;gap:12px;margin-bottom:7px}
.brief-id{min-width:0;flex:1}
.brief-section{font-size:12px;color:var(--rouge);font-weight:600}
.brief-title{
  font-family:var(--font-disp);font-weight:600;font-size:23px;line-height:1.15;
  margin:1px 0 0;
}
.brief-actions{display:flex;gap:6px;flex:none}
.icon-btn{
  width:30px;height:30px;border-radius:50%;border:2px solid var(--bleu);
  background:#fff;color:var(--bleu);font-family:var(--font-disp);font-size:15px;
  cursor:pointer;line-height:1;display:grid;place-items:center;transition:background .12s,color .12s;
}
.icon-btn:hover{background:var(--bleu);color:#fff}
.icon-btn.pulse{animation:pulse 1.2s ease-out 2}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(43,95,217,.45)}100%{box-shadow:0 0 0 12px rgba(43,95,217,0)}}

.brief-scroll{flex:1;min-height:0;overflow:auto;padding-right:5px}
.brief-task{font-size:15px;line-height:22px}
.brief-task p{margin:0 0 8px}
.brief-task ul{margin:0 0 8px;padding-left:20px}
.brief-task li{margin-bottom:3px}
.brief-task code,.modal-body code,.brief-feedback code{
  font-family:var(--font-code);font-size:.9em;background:#eef3f8;
  border:1px solid #dbe5ef;border-radius:4px;padding:1px 5px;color:#0d3b66;white-space:nowrap;
}

/* Retour de correction */
.brief-feedback{
  margin:9px 0 3px;padding:8px 12px;border-radius:8px;font-size:14px;line-height:20px;
}
.brief-feedback.ko{background:var(--rouge-pale);border-left:4px solid var(--rouge);color:#8f2a20}
.brief-feedback.ok{background:var(--vert-pale);border-left:4px solid var(--vert);color:#1d6b41}
.brief-feedback.info{background:#eef3fb;border-left:4px solid var(--bleu);color:#1b3f8f}
.brief-feedback ul{margin:5px 0 0;padding-left:18px}
.brief-feedback li{margin-bottom:4px}
.brief-feedback .fb-title{font-weight:600;font-family:var(--font-disp);font-size:15px}
.fb-sol{
  background:none;border:none;padding:0;margin:2px 0 0;cursor:pointer;font-size:13.5px;
  color:#8f2a20;text-decoration:underline;text-underline-offset:3px;
}
.fb-sol:hover{color:var(--rouge)}

.brief-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(22,40,60,.12);padding-top:8px;margin-top:5px;flex:none;
}
.progress{display:flex;align-items:center;gap:9px;min-width:0;flex:1}
.progress-track{flex:1;height:9px;border-radius:5px;background:#e2e8ef;overflow:hidden;max-width:170px;
  box-shadow:inset 0 1px 2px rgba(0,0,0,.08)}
.progress-fill{height:100%;width:0;border-radius:5px;background:linear-gradient(90deg,var(--vert),#54b97f);
  transition:width .45s cubic-bezier(.22,1,.36,1)}
.progress-label{font-size:12.5px;color:var(--ink-2);white-space:nowrap;font-variant-numeric:tabular-nums}
.progress-label b{color:var(--ink)}

.foot-btns{display:flex;gap:8px;flex:none}
.btn{
  border:none;border-radius:8px;padding:9px 16px;font-family:var(--font-disp);font-size:15px;
  cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:transform .08s,box-shadow .15s,background .15s;
  text-decoration:none;
}
.btn:active{transform:translateY(1px)}
.btn-check{background:var(--ink);color:#fff}
.btn-check:hover{background:#26415c}
.btn-next{background:var(--vert);color:#fff;box-shadow:0 3px 0 #1f6b42}
.btn-next:hover{background:#37a26a}
.btn-go{background:var(--bleu);color:#fff}
.btn-go:hover{background:#2450bb}
.btn-ghost{background:transparent;color:var(--ink-2);border:1px solid #cfd8e2}
.btn-ghost:hover{background:#eef2f6;color:var(--ink)}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------------------------------------------------------
   Editeur
   --------------------------------------------------------- */
.editor-shell{
  background:var(--nuit-2);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;min-height:0;
}
.editor-bar{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:var(--nuit);padding:0 10px 0 0;flex:none;
}
.file-tab{
  font-family:var(--font-code);font-size:12.5px;color:var(--nuit-txt);
  background:var(--nuit-2);padding:9px 16px;border-top:2px solid var(--c-tag);
}
.editor-bar-right{display:flex;align-items:center;gap:12px}
.mini-btn{
  background:none;border:1px solid var(--nuit-3);color:var(--nuit-dim);border-radius:6px;
  font-size:12px;padding:4px 9px;cursor:pointer;
}
.mini-btn:hover{color:var(--nuit-txt);border-color:#3a4d61}
.save-dot{font-size:11.5px;color:var(--nuit-dim);display:flex;align-items:center;gap:5px}
.save-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--vert);opacity:.45;transition:opacity .3s}
.save-dot.on::before{opacity:1;box-shadow:0 0 8px var(--vert)}

.editor{display:flex;flex:1;min-height:0;height:100%;overflow:hidden;position:relative}
.gutter{
  flex:none;padding:12px 8px 12px 12px;text-align:right;white-space:pre;
  font-family:var(--font-code);font-size:13.5px;line-height:20px;
  color:#41586e;background:var(--nuit-2);user-select:none;overflow:hidden;
  min-width:40px;
}
.gutter > div{will-change:transform}
.code-wrap{position:relative;flex:1;min-width:0;overflow:hidden}
.hl,#code,#hl-code{
  margin:0;
  font-family:var(--font-code);font-size:13.5px;line-height:20px;
  white-space:pre;tab-size:2;border:0;
  /* Toute difference de metrique entre les deux couches decale le curseur
     par rapport au texte : on fige tout ce qui pourrait varier. */
  letter-spacing:0;word-spacing:0;font-kerning:none;font-weight:400;font-style:normal;
  font-variant-ligatures:none;font-feature-settings:"liga" 0,"calt" 0;
  text-transform:none;text-indent:0;
}
.hl,#code{padding:12px 16px 40px 6px}
.hl{
  position:absolute;inset:0;overflow:hidden;color:var(--nuit-txt);pointer-events:none;
}
/* <code> recoit "font-family:monospace" de la feuille du navigateur, ce qui
   ecrasait l'heritage : le texte colore n'avait pas la meme police que le
   textarea et le curseur derivait le long de la ligne. C'est la regle
   ci-dessus, qui nomme #hl-code, qui reprend la main.
   Surtout ne pas ecrire "font: inherit" ici : le raccourci remettrait
   font-variant-ligatures et font-feature-settings a leur valeur initiale,
   et les ligatures d'une police comme Cascadia Code recreeraient le decalage. */
#hl-code{
  color:inherit;display:block;
  will-change:transform;
}
#code{
  position:absolute;inset:0;width:100%;height:100%;
  background:transparent;color:transparent;caret-color:#ffd166;resize:none;overflow:auto;
  outline:none;
}
#code::selection{background:rgba(143,211,255,.28)}
#code::-webkit-scrollbar{width:11px;height:11px}
#code::-webkit-scrollbar-thumb{background:#2b3b4d;border-radius:6px;border:3px solid var(--nuit-2)}
#code::-webkit-scrollbar-track{background:transparent}

/* jetons de coloration */
.t-punc{color:var(--c-punc)}
.t-name{color:var(--c-name)}
.t-attr{color:var(--c-attr)}
.t-str{color:var(--c-str)}
.t-com{color:var(--c-com);font-style:italic}
.t-doc{color:var(--c-doc)}
.t-sel{color:var(--c-sel)}
.t-prop{color:var(--c-prop)}
.t-val{color:var(--c-val)}

/* ---------------------------------------------------------
   Navigateur simule
   --------------------------------------------------------- */
.browser{
  flex:1;display:flex;flex-direction:column;min-width:0;
  background:#e8ecf1;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);
}
.browser-chrome{display:flex;align-items:flex-end;gap:12px;background:#d6dce4;padding:8px 12px 0}
.dots{display:flex;gap:6px;padding-bottom:9px}
.dots i{width:11px;height:11px;border-radius:50%;display:block}
.d1{background:#ec6a5e}.d2{background:#f4bf4f}.d3{background:#61c554}
.tabstrip{flex:1;min-width:0;display:flex}
.tab{
  background:#f4f6f9;border-radius:9px 9px 0 0;padding:7px 16px;font-size:12.5px;color:#3d4b5c;
  display:flex;align-items:center;gap:8px;max-width:290px;min-width:0;
}
.tab span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tab-favicon{width:11px;height:11px;border-radius:2px;background:var(--bleu);flex:none}
.browser-url{display:flex;align-items:center;gap:9px;background:#f4f6f9;padding:8px 12px;border-bottom:1px solid #dde3ea}
.url-btn{
  border:none;background:none;color:#5b6b7d;font-size:16px;cursor:pointer;width:26px;height:26px;
  border-radius:50%;line-height:1;
}
.url-btn:hover{background:#e5eaf0}
.url-btn.spin{animation:spin .5s ease}
@keyframes spin{to{transform:rotate(360deg)}}
.url-bar{
  flex:1;min-width:0;background:#e8ecf1;border-radius:14px;padding:5px 13px;font-size:12.5px;color:#4a5a6b;
  display:flex;align-items:center;gap:7px;
}
.url-lock{font-size:9px;opacity:.6}
.viewport-switch{display:flex;gap:2px;background:#e8ecf1;border-radius:7px;padding:2px}
.vp-btn{border:none;background:none;cursor:pointer;padding:2px 8px;border-radius:5px;color:#61728a;font-size:13px}
.vp-btn.is-on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}

.browser-body{flex:1;min-height:0;background:#fff;display:flex;justify-content:center;overflow:hidden}
.browser-body.phone{background:#cfd6de;padding:14px 0}
#preview{border:0;width:100%;height:100%;background:#fff;transition:width .3s ease}
.browser-body.phone #preview{width:380px;max-width:100%;box-shadow:0 6px 22px rgba(0,0,0,.22);border-radius:6px}

.browser-status{
  display:flex;align-items:center;gap:14px;background:#d6dce4;padding:6px 14px;font-size:12px;color:#4d5b6c;
}
.who{font-weight:600;color:var(--ink);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-link{color:var(--bleu);text-decoration:none;border-bottom:1px solid rgba(43,95,217,.35)}
.lb-link:hover{border-bottom-color:var(--bleu)}
.net{background:var(--rouge);color:#fff;border-radius:4px;padding:1px 7px;font-size:11px}

/* ---------------------------------------------------------
   Popups
   --------------------------------------------------------- */
.modal{position:fixed;inset:0;z-index:70;display:grid;place-items:center;background:rgba(8,17,26,.55);padding:20px}
.modal-card{
  width:min(640px,94vw);max-height:88vh;display:flex;flex-direction:column;
  background:var(--paper);border-radius:var(--r);box-shadow:0 24px 70px rgba(0,0,0,.45);
  animation:pop .22s cubic-bezier(.22,1.2,.4,1);
  border-top:5px solid var(--bleu);
}
@keyframes pop{from{transform:translateY(14px) scale(.97);opacity:0}}
.modal-head{display:flex;align-items:flex-start;gap:12px;padding:20px 22px 6px}
.modal-head h3{font-family:var(--font-disp);font-size:25px;margin:0;flex:1;font-weight:600;line-height:1.15}
.modal-x{background:none;border:none;font-size:26px;line-height:1;color:var(--ink-2);cursor:pointer;padding:0 2px}
.modal-x:hover{color:var(--rouge)}
.modal-body{padding:4px 22px 6px;overflow:auto;font-size:15px;line-height:23px}
.modal-body p{margin:0 0 12px}
.modal-body ul{margin:0 0 12px;padding-left:20px}
.modal-body li{margin-bottom:5px}
.modal-body h4{font-family:var(--font-disp);font-size:16.5px;margin:18px 0 6px}
.modal-body .demo{
  display:grid;grid-template-columns:1fr 1fr;border:1px solid #d9e1ea;border-radius:8px;overflow:hidden;margin:0 0 14px;
}
.modal-body .demo>div{padding:11px 13px}
.modal-body .demo .src{background:var(--nuit-2);color:var(--nuit-txt);font-family:var(--font-code);font-size:12.5px;
  line-height:19px;white-space:pre-wrap;word-break:break-word}
.modal-body .demo .src b{color:var(--c-tag);font-weight:400}
.modal-body .demo .src i{color:var(--c-attr);font-style:normal}
.modal-body .demo .out{background:#fff;font-size:14px}
.modal-body .demo .lbl{font-size:10.5px;color:var(--ink-2);margin-bottom:7px;opacity:.8}
.modal-body .demo .src .lbl{color:var(--nuit-dim)}
.modal-body .note{
  background:#fff8dd;border-left:4px solid var(--jaune);padding:9px 12px;border-radius:0 6px 6px 0;margin:0 0 12px;font-size:14px;
}
.modal-body .warn{
  background:var(--rouge-pale);border-left:4px solid var(--rouge);padding:9px 12px;border-radius:0 6px 6px 0;margin:0 0 12px;font-size:14px;
}
.modal-foot{
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 22px 18px;flex:none;
  border-top:1px solid rgba(22,40,60,.1);margin-top:6px;
}
.modal-tip{font-size:12.5px;color:var(--ink-2)}

.done-card{border-top-color:var(--vert);text-align:center}
.done-card h3{font-family:var(--font-disp);font-size:29px;margin:8px 22px 0}
.done-card .modal-body{text-align:left}
.done-card .modal-foot{justify-content:center}
.done-stamp{
  align-self:center;margin-top:20px;border:3px solid var(--vert);color:var(--vert);
  font-family:var(--font-disp);font-size:19px;padding:4px 18px;border-radius:6px;transform:rotate(-4deg);
}

/* ---------------------------------------------------------
   Tampon de validation
   --------------------------------------------------------- */
.stamp{
  position:fixed;z-index:80;pointer-events:none;left:50%;top:42%;
  font-family:var(--font-disp);font-size:42px;color:var(--vert);
  border:4px solid var(--vert);border-radius:10px;padding:6px 22px;
  background:rgba(255,255,255,.92);
  animation:stamp .9s cubic-bezier(.2,1.4,.4,1) forwards;
}
@keyframes stamp{
  0%{transform:translate(-50%,-50%) scale(2.4) rotate(-16deg);opacity:0}
  28%{transform:translate(-50%,-50%) scale(1) rotate(-9deg);opacity:1}
  72%{opacity:1}
  100%{transform:translate(-50%,-50%) scale(1.06) rotate(-9deg);opacity:0}
}
.shake{animation:shake .32s}
@keyframes shake{
  20%{transform:translateX(-5px)}40%{transform:translateX(5px)}
  60%{transform:translateX(-3px)}80%{transform:translateX(3px)}
}

/* ---------------------------------------------------------
   Adaptations ecran
   --------------------------------------------------------- */
@media (max-width:1080px){
  .app{grid-template-columns:1fr;grid-template-rows:auto 460px;overflow:auto;height:auto;min-height:100vh}
  .col-left{grid-template-rows:auto 340px}
  body{overflow:auto}
}
:focus-visible{outline:3px solid var(--bleu);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}