:root{
  --bg:#eef1f5; --bg2:#e7ebf1; --card:#ffffff; --card2:#f7f9fc;
  --line:#d2d9e3; --fg:#141c26; --mut:#54637a;
  --teal:#0b7a68; --teal-d:#0e8f79; --teal-bg:#e2f5f0; --teal-dev:#2ee6c5;
  --red:#E51924; --amber:#a35b00; --amber-bg:#fff4e2; --danger:#c02a2a; --danger-bg:#fdecec;
  --lcd:#0a0a0a; --lcd-fg:#f2f2f2;
  --r:14px; --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{background:#eef1f5}
body{background:radial-gradient(1100px 600px at 50% -10%,#ffffff 0%,var(--bg) 55%);color:var(--fg);font-family:var(--font);-webkit-text-size-adjust:100%;min-height:100vh}
h1,h2,h3{margin:0 0 .35em}
p{margin:.35em 0}
button{font-family:inherit}
.muted{color:var(--mut)}
.small{font-size:.82rem}
.grow{flex:1}
[hidden]{display:none !important}

/* ---- top bar ---- */
.topbar{display:flex;align-items:center;gap:12px;padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top));
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.brand{width:34px;height:34px;border-radius:9px;flex:none}
.brand-full{height:38px;width:auto;flex:none;border-radius:6px}
.titles h1{position:absolute;left:-9999px}
@media(max-width:520px){ .brand-full{height:30px} .titles p{display:none} }
.titles h1{font-size:1.05rem;letter-spacing:.2px}
.titles p{font-size:.72rem;color:var(--mut);margin:0}
.ghost{background:transparent;border:1px solid var(--line);color:var(--mut);border-radius:9px;padding:6px 10px;cursor:pointer}
.ghost:hover{color:var(--fg);border-color:var(--teal)}

/* ---- tabs ---- */
.tabs{display:flex;gap:6px;overflow-x:auto;padding:10px 14px;position:sticky;top:56px;background:rgba(238,241,245,.94);backdrop-filter:blur(8px);z-index:29;border-bottom:1px solid var(--line);scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{white-space:nowrap;background:var(--card);border:1px solid var(--line);color:var(--mut);padding:8px 14px;border-radius:999px;font-size:.88rem;cursor:pointer}
.tabs button.active{background:var(--teal-bg);color:var(--teal);border-color:var(--teal-d);font-weight:600}

main{padding:14px;padding-bottom:calc(30px + env(safe-area-inset-bottom));max-width:1500px;margin:0 auto}
.view{display:none}
.view.active{display:block}
.intro{margin-bottom:12px}
.intro p{color:var(--mut);max-width:75ch}

/* ---- cards ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px;margin-bottom:12px;box-shadow:0 1px 2px rgba(20,28,38,.05)}
.card-h{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:.95rem}
.card-h b{flex:1}
.badge{background:var(--card2);border:1px solid var(--line);border-radius:999px;padding:1px 9px;font-size:.78rem;color:var(--mut)}
.badge.hot{background:var(--danger-bg);border-color:#e0aaaa;color:#9c1f1f;font-weight:600}
.rowline{display:flex;justify-content:space-between;gap:10px;padding:5px 0;border-bottom:1px dashed var(--line);font-size:.88rem}
.rowline:last-child{border-bottom:none}
.rowline span{color:var(--mut)}

/* ---- device area ---- */
.devbar{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.seg{display:inline-flex;background:var(--card);border:1px solid var(--line);border-radius:11px;overflow:hidden}
.seg button{background:transparent;border:none;color:var(--mut);padding:9px 14px;cursor:pointer;font-size:.88rem}
.seg button.active{background:var(--teal-bg);color:var(--teal);font-weight:600}
.simgrid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:14px;align-items:start}
@media(max-width:1000px){.simgrid{grid-template-columns:1fr}}
.devwrap{min-width:0}
.hintbar{margin-top:10px;min-height:22px;color:var(--teal);font-size:.86rem}

/* ---- device drawing ---- */
.device{width:100%;max-width:820px;margin:0 auto;user-select:none}
.device svg{width:100%;height:auto;display:block}
.key{cursor:pointer}
.key rect,.key path,.key circle{transition:fill .08s}
.key:active .keybg,.key.press .keybg{fill:#3d4a5c}
.key.hl .keybg{fill:#12564c;stroke:var(--teal-dev);stroke-width:2}
.key.hl{animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}

/* LCD */
.lcd{font-family:"SF Mono",Menlo,Consolas,"Courier New",monospace;letter-spacing:0}
.lcdline{display:flex;align-items:center}
.cellch{display:inline-flex;align-items:center;justify-content:center;flex:none}
.cellch svg{width:100%;height:100%}

/* controls */
.controls{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.ctl{background:var(--card2);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:8px 12px;font-size:.86rem;cursor:pointer}
.ctl:hover{background:#eef2f7}
.ctl:hover{border-color:var(--teal-d)}
.ctl.small{padding:6px 9px;font-size:.8rem}
.ctl.primary{background:var(--teal-d);border-color:var(--teal);color:#ffffff;font-weight:600}
.ctl:disabled{opacity:.4;cursor:not-allowed}
.slotrow{display:flex;align-items:center;gap:6px;padding:5px 0;font-size:.85rem}
.slotrow span{flex:1;color:var(--mut)}
.slotrow em{font-style:normal;opacity:.6}

/* lists */
.inflist,.evlist{max-height:230px;overflow:auto;font-size:.84rem}
.infitem{border-left:3px solid var(--danger);background:var(--danger-bg);padding:7px 9px;border-radius:0 8px 8px 0;margin-bottom:6px;color:#3c1c1c}
.infitem.warn{border-color:var(--amber);background:var(--amber-bg);color:#3d2a10}
.infitem b{display:block;font-size:.86rem;margin-bottom:2px}
.infitem span{display:block;margin-top:2px}
.infitem span{color:inherit;opacity:.85;font-size:.78rem}
.evitem{padding:4px 0;border-bottom:1px dashed var(--line);color:var(--mut)}
.evitem b{color:var(--fg);font-weight:600}

/* steps */
.steps{list-style:none;padding:0;margin:8px 0 0;counter-reset:s}
.steps li{position:relative;padding:6px 0 6px 30px;font-size:.86rem;color:var(--mut);border-bottom:1px dashed var(--line)}
.steps li:before{counter-increment:s;content:counter(s);position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:.72rem}
.steps li.done{color:var(--fg);text-decoration:none}
.steps li.done:before{content:"✓";background:var(--teal-bg);border-color:var(--teal-d);color:var(--teal)}
.steps li.cur{color:var(--fg)}
.steps li.cur:before{border-color:var(--teal);color:var(--teal)}
.fb{margin-top:9px;padding:9px 11px;border-radius:10px;font-size:.86rem;line-height:1.45}
.fb.err{background:var(--danger-bg);border:1px solid #e0aaaa;color:#3c1c1c}
.fb.ok{background:var(--teal-bg);border:1px solid var(--teal-d);color:#123c34}
.fb b{display:block;margin-bottom:3px}
.fb .why{color:var(--mut);font-size:.8rem;margin-top:5px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:none}

/* printout */
.printout-wrap{margin-top:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px}
.printout-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.printout-head b{flex:1}
.ticket{background:#faf8f2;color:#15130f;border:1px solid var(--line);font-family:"SF Mono",Menlo,Consolas,monospace;font-size:12px;line-height:1.35;
  padding:16px 14px;border-radius:6px;overflow-x:auto;white-space:pre;max-height:60vh;box-shadow:inset 0 0 30px rgba(0,0,0,.12)}

/* exercises */
.exolist{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:start}
@media(max-width:1050px){ .exolist{grid-template-columns:1fr} }
.devcol{background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:14px;padding:12px}
.devcol-h{margin:0 0 2px;font-size:.98rem;color:var(--teal)}
.devcol-sub{margin:10px 0 6px;font-size:.76rem;text-transform:uppercase;letter-spacing:.6px;color:var(--mut)}
.devcol .exo{margin-bottom:8px}
.devcol .exo h3{font-size:.92rem}
.devcol .exo p{font-size:.8rem}
.exo{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--teal-d);border-radius:12px;padding:12px;cursor:pointer;box-shadow:0 1px 2px rgba(20,28,38,.05)}
.exo:hover{border-color:var(--teal);box-shadow:0 2px 8px rgba(20,28,38,.10)}
.exo h3{font-size:.98rem}
.exo p{color:var(--mut);font-size:.84rem}
.exo .meta{display:flex;gap:8px;margin-top:8px;font-size:.74rem;color:var(--mut);align-items:center;flex-wrap:wrap}
.chip{border:1px solid var(--line);border-radius:999px;padding:2px 8px}
.chip.dev{color:var(--teal)}
.chip.ok{background:var(--teal-bg);border-color:var(--teal-d);color:var(--teal)}

/* planner */
.planner{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
@media(max-width:900px){.planner{grid-template-columns:1fr}}
.addrow{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:8px}
select,input[type=text],input[type=number],input[type=time],input[type=search]{
  background:var(--bg2);border:1px solid var(--line);color:var(--fg);border-radius:9px;padding:8px 10px;font-size:.86rem;font-family:inherit}
input[type=number]{width:84px}
.unit{color:var(--mut);font-size:.82rem}
.plist{list-style:none;padding:0;margin:8px 0}
.plist li{display:flex;align-items:center;gap:8px;padding:6px 8px;border:1px solid var(--line);border-radius:9px;margin-bottom:5px;font-size:.85rem;background:var(--bg2)}
.plist li .sw{width:12px;height:12px;border-radius:3px;flex:none}
.plist li .x{margin-left:auto;cursor:pointer;color:var(--mut)}
.chart{display:flex;height:38px;border-radius:8px;overflow:hidden;border:1px solid var(--line);margin:8px 0}
.chart div{position:relative}
.chart div span{position:absolute;inset:0;display:none}
.totals{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;font-size:.85rem;margin-bottom:8px}
.totals div{display:flex;justify-content:space-between;background:var(--bg2);border:1px solid var(--line);padding:6px 9px;border-radius:8px}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:.78rem;color:var(--mut);margin-bottom:6px}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block;margin-right:4px}

/* fines */
.fines{margin-top:6px}
.fineline{display:flex;justify-content:space-between;gap:10px;padding:8px 10px;border:1px solid var(--line);border-radius:9px;margin-bottom:6px;background:var(--bg2);font-size:.88rem}
.tablewrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:.82rem;min-width:620px}
th,td{border-bottom:1px solid var(--line);padding:7px 9px;text-align:left}
th{color:var(--mut);font-weight:600;position:sticky;top:0;background:var(--card)}
td.num{text-align:right;font-variant-numeric:tabular-nums}

/* kb */
.search{width:100%;margin-bottom:12px}
.kblist{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.kb{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;box-shadow:0 1px 2px rgba(20,28,38,.05)}
.kb h3{font-size:.95rem;color:var(--teal)}
.kb ul{margin:.4em 0;padding-left:1.1em;color:var(--mut);font-size:.86rem;line-height:1.5}
.kb p{color:var(--mut);font-size:.86rem;line-height:1.5}
.kb .art{background:var(--bg2);border-radius:8px;padding:5px 8px;font-size:.75rem;color:var(--mut);display:inline-block;margin-top:6px}

/* trainer */
.mlist .m{display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--line);border-radius:9px;margin-bottom:6px;background:var(--bg2);font-size:.86rem}
.mlist .m b{flex:1}

/* toast + modal */
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:26px;background:#14202b;border:1px solid #14202b;color:#ffffff;
  padding:10px 16px;border-radius:11px;z-index:80;font-size:.88rem;max-width:90vw;box-shadow:0 10px 30px rgba(20,28,38,.25)}
.modal{position:fixed;inset:0;background:rgba(20,28,38,.45);z-index:90;display:flex;align-items:center;justify-content:center;padding:16px}
.modal-box{background:var(--card);border:1px solid var(--line);border-radius:16px;max-width:640px;width:100%;max-height:85vh;overflow:auto;padding:18px;position:relative}
.modal-box .close{position:absolute;right:12px;top:12px}
.modal-box h2{margin-top:0}
.modal-box p,.modal-box li{color:var(--mut);font-size:.9rem;line-height:1.55}

/* ---- LCD overlay ---- */
.devbox{position:relative;width:100%;max-width:860px;margin:0 auto}
.devbox svg.face{width:100%;height:auto;display:block}
.lcdwrap{position:absolute;display:flex;flex-direction:column;justify-content:center;
  color:var(--lcd-fg);font-family:"SF Mono",Menlo,Consolas,"Courier New",monospace;overflow:hidden}
.lcdwrap.pos{color:#0a0a0a}
.lcdwrap.amber{color:#ffb02e;text-shadow:0 0 6px rgba(255,150,20,.35)}
.lcdwrap .cellch{width:var(--cw);height:var(--ch);font-size:calc(var(--cw)*1.62);line-height:1}
.lcdwrap .cellch svg{width:calc(var(--cw)*.98);height:calc(var(--cw)*1.3)}
.statusbar{position:absolute;display:flex;align-items:center;justify-content:center;gap:6%;color:var(--lcd-fg)}
.statusbar span{display:inline-flex;align-items:center;height:100%}
.statusbar svg{height:78%;width:auto;aspect-ratio:12/16}
.cardsvg{transition:opacity .2s}

/* ---- téléphone : garder l'appareil lisible et cliquable ---- */
@media(max-width:620px){
  .devwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px}
  .devbox{min-width:600px}
  .hintbar{position:sticky;left:0}
  .totals{grid-template-columns:1fr}
}

/* ---- démonstrations ---- */
.demobar{margin-top:10px;background:var(--teal-bg);border:1px solid var(--teal-d);color:#123c34;
  border-radius:12px;padding:10px 12px}
.demo-h{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.demo-h b{flex:1;color:var(--teal)}
.demobar p{margin:0;font-size:.9rem;line-height:1.45}
.demolist{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px}
.demo{display:flex;align-items:center;gap:8px;background:var(--bg2);border:1px solid var(--line);
  border-radius:10px;padding:9px 11px;cursor:pointer;font-size:.86rem}
.demo:hover{border-color:var(--teal)}
.demo b{flex:1;font-weight:600}
.demo .play{color:var(--teal)}

.timeset{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-top:8px}
.timeset input{flex:1;min-width:120px}

/* ---- présentoir de cartes virtuelles ---- */
.rack{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap}
.vcard{flex:1 1 210px;max-width:260px;cursor:pointer;border-radius:12px;padding:6px;
  border:1px solid transparent;transition:transform .12s,border-color .12s,box-shadow .12s}
.vcard:hover{transform:translateY(-3px);border-color:var(--teal-d);box-shadow:0 6px 18px rgba(20,28,38,.14)}
.vcard .cardface{width:100%;height:auto;display:block;border-radius:10px;
  box-shadow:0 2px 6px rgba(20,28,38,.20)}
.vcard.inserted .cardface{opacity:.38;filter:grayscale(.5)}
.vcard.inserted{border-color:var(--teal-d);background:var(--teal-bg)}
.vcap{margin-top:6px;font-size:.78rem;line-height:1.3}
.vcap b{display:block}
.vcap span{display:block;color:var(--mut)}
.vcap em{display:block;font-style:normal;color:var(--teal);font-weight:600}
.vcard.hl{border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-bg);animation:pulse 1s infinite}
@media(max-width:620px){ .rack{flex-wrap:nowrap;overflow-x:auto} .vcard{flex:0 0 200px} }

/* ---- porte d'entrée (licence) ---- */
.gate{position:fixed;inset:0;z-index:200;background:linear-gradient(180deg,#eef1f5,#dde4ec);
  display:flex;align-items:center;justify-content:center;padding:18px;overflow:auto}
.gate-box{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px 22px;
  max-width:430px;width:100%;text-align:center;box-shadow:0 18px 50px rgba(20,28,38,.18)}
.gate-logo{width:min(280px,88%);height:auto;margin-bottom:6px}

.gate-sub{color:var(--mut);font-size:.86rem;margin:0 0 16px}
.gate-price{background:var(--teal-bg);border:1px solid var(--teal-d);border-radius:12px;padding:10px;margin-bottom:18px}
.gate-price b{display:block;font-size:1.5rem;color:var(--teal)}
.gate-price span{font-size:.78rem;color:var(--mut)}
.gate-box label{display:block;text-align:left;font-size:.82rem;color:var(--mut);margin-bottom:5px}
.gate-box input{width:100%;text-align:center;font-family:"SF Mono",Menlo,monospace;font-size:1rem;
  letter-spacing:1px;text-transform:uppercase;margin-bottom:10px}
.ctl.wide{width:100%;padding:11px}
.gate-msg{min-height:20px;font-size:.84rem;margin:8px 0 0}
.gate-msg.err{color:#a01f1f}
.gate-msg.ok{color:var(--teal)}
.gate-actions{display:flex;gap:8px;justify-content:center;margin:16px 0 10px;flex-wrap:wrap}
.freebar{position:fixed;left:0;right:0;bottom:0;z-index:150;background:#14202b;color:#fff;
  padding:9px 14px;font-size:.84rem;display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap}
.freebar button{background:var(--teal-d);border:none;color:#fff;border-radius:8px;padding:6px 12px;cursor:pointer;font-size:.82rem}
.freebar .lien{background:none;border:1px solid rgba(255,255,255,.35);color:#fff}
body.hasbar{padding-bottom:52px}
.gate{align-items:flex-start;padding-top:min(6vh,60px)}
.gate-why{background:var(--amber-bg);border:1px solid #e0b060;border-radius:10px;padding:8px 10px;
  font-size:.84rem;margin:0 0 14px;text-align:left}
.gate-list{text-align:left;margin:0 0 16px;padding-left:1.1em;color:var(--mut);font-size:.84rem;line-height:1.6}
.exo.locked,.demo.locked{opacity:.72}
.exo.locked h3:after,.demo.locked b:after{content:' 🔒';font-size:.85em}
.tabs button.locked:after{content:' 🔒';font-size:.85em;opacity:.8}

/* ---- groupes d'exercices ---- */
.exo.exam{border-left-width:4px;border-left-color:var(--red);position:relative;padding-left:14px}
.exo .exam-no{position:absolute;top:10px;right:10px;width:24px;height:24px;border-radius:50%;
  background:var(--red);color:#fff;font-weight:700;font-size:.82rem;display:flex;align-items:center;justify-content:center}
.exo.exam h3{padding-right:28px}
.chip.oacp{background:#fdecec;border-color:#e0aaaa;color:#9c1f1f;font-weight:600}

.kb.locked-kb{cursor:pointer;position:relative;opacity:.9}
.kb.locked-kb:hover{border-color:var(--teal)}
.kb-lock{margin:6px 0 0;font-size:.82rem;color:var(--teal);font-weight:600}
.seg button.locked{opacity:.65}
.seg button.locked:after{content:' 🔒';font-size:.85em}

.lickey{background:var(--teal-bg);border:1px solid var(--teal-d);border-radius:10px;padding:12px;margin:12px 0;
  font-family:"SF Mono",Menlo,monospace;font-size:1.05rem;letter-spacing:1px;color:var(--teal);text-align:center;word-break:break-all}
.ctl.danger{background:#fdecec;border-color:#e0aaaa;color:#9c1f1f;font-weight:600}

.rack-note{flex:1 1 100%;margin:4px 0 0;font-size:.82rem;color:var(--mut);line-height:1.5}
.rack-note b{color:var(--fg)}