/* ============================================================================
   panel.css — banco di prova iC7-Aqua
   Il dispositivo e' reso fedele; il contorno e' un banco da officina:
   grafite, plastiche chiare, un solo accento ambra.
   ========================================================================== */

:root{
  --bg:#13171a;
  --bg-2:#1b2126;
  --line:#2b333a;
  --ink:#e9ede9;
  --muted:#8e9aa3;
  --amber:#f0a83c;
  --body:#3f4247;
  --keys:#383b40;
  --pad:#666a6d;
  --green:#5ab82c;
  --green-ok:#4bbf6b;
  --red-cmd:#c0272d;
  --red:#e0343c;
  --yellow:#f2c53d;
  --green:#57c06a;
  --paper:#cae0de;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(120% 80% at 20% -10%,#20272d 0%,transparent 60%),
    var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.5;
  padding:clamp(16px,4vw,44px) clamp(14px,4vw,44px) 64px;
}

/* --- testata -------------------------------------------------------------- */
.masthead{max-width:1180px;margin:0 auto clamp(22px,4vw,40px)}
.eyebrow{
  margin:0 0 10px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--amber);
}
.masthead h1{
  margin:0;font-size:clamp(26px,4.4vw,42px);font-weight:650;letter-spacing:-.02em;
}
.masthead h1 span{color:var(--muted);font-weight:400}
.lede{margin:12px 0 0;max-width:60ch;color:var(--muted);font-size:15px}

/* --- griglia -------------------------------------------------------------- */
.bench{
  max-width:1180px;margin:0 auto;
  display:grid;gap:clamp(20px,3vw,34px);
  grid-template-columns:minmax(0,376px) minmax(0,1fr);
  align-items:start;
}
@media(max-width:900px){.bench{grid-template-columns:minmax(0,1fr)}}
.device-wrap,.side,.card{min-width:0}

/* --- dispositivo ---------------------------------------------------------- *
   Colori campionati dalle fotografie del pannello reale:
   scocca #3f4247, zona tasti #383b40, pad #666a6d, LCD #cae0de,
   verde di comando #5ab82c, rosso di arresto #c0272d.                        */
.device-wrap{position:sticky;top:24px}
@media(max-width:900px){.device-wrap{position:static}}

.device{
  width:min(100%,340px);margin-inline:auto;position:relative;
  background:var(--body);border-radius:9px;
  padding:0 0 6px;
  box-shadow:
    0 1px 0 rgba(255,255,255,.07) inset,
    0 24px 46px -18px rgba(0,0,0,.85);
}
.hood{
  height:11px;margin:0 -6px 8px;border-radius:4px 4px 2px 2px;
  background:linear-gradient(180deg,#2a2c30,#17181b 55%,#26282c);
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset;
}
.upper{padding:0 12px 10px}
.lower{
  background:var(--keys);border-top:1px solid #2c2e33;
  padding:9px 12px 4px;margin:0 4px;border-radius:4px;
}
.tabs{display:flex;justify-content:space-between;padding:4px 26px 0}
.tabs i{width:44px;height:5px;border-radius:0 0 3px 3px;background:#26282c;display:block}

/* indicatori di bus, in alto a destra come sul pannello reale */
.bus-row{display:flex;align-items:flex-end;justify-content:flex-end;gap:6px;
  padding:4px 2px 6px}
.bus-label{font-family:var(--sans);font-size:10px;letter-spacing:.04em;
  color:#98a0a4;margin-right:1px}
.bus-cell{display:flex;flex-direction:column;align-items:center;gap:2px}
.bus-cell b{
  font-family:var(--sans);font-size:8px;color:#8b9296;font-weight:400;
  writing-mode:vertical-rl;line-height:1;letter-spacing:.02em;
}
.bus-led{
  width:15px;height:8px;border-radius:2px;display:block;background:#4c5055;
  box-shadow:0 0 0 1px rgba(0,0,0,.3) inset;
}
.bus-led.on-bus{background:var(--green);box-shadow:0 0 6px rgba(90,184,44,.85)}

.screen{
  background:#20262a;padding:3px;border-radius:3px;
  box-shadow:0 1px 3px rgba(0,0,0,.5) inset,0 0 0 1px #565b5f;
}
#lcd{
  display:block;width:100%;height:auto;image-rendering:pixelated;
  background:var(--paper);border-radius:1px;
}

/* LED di stato: etichetta sopra, spia sotto */
.status-leds{display:flex;justify-content:center;gap:26px;margin-bottom:7px}
.sled-cell{display:flex;flex-direction:column;align-items:center;gap:3px}
.sled-cell b{
  font-family:var(--sans);font-size:9px;font-weight:400;letter-spacing:.06em;
  color:#8b9296;
}
.sled{
  width:17px;height:9px;border-radius:2px;display:block;background:#4c5055;
  box-shadow:0 0 0 1px rgba(0,0,0,.3) inset;transition:background .12s;
}
.sled.on-warn{background:var(--yellow);box-shadow:0 0 7px rgba(242,197,61,.8)}
.sled.on-ready{background:#f4f7f7;box-shadow:0 0 7px rgba(255,255,255,.75)}
.sled.on-fault{background:var(--red);box-shadow:0 0 7px rgba(224,52,60,.8)}
.sled.blink-ready{background:#f4f7f7;animation:blink 1s steps(2,end) infinite}
@keyframes blink{50%{opacity:.3}}

/* --- comandi -------------------------------------------------------------- */
.controls{
  display:grid;grid-template-columns:1fr auto 1fr;grid-template-rows:auto auto auto;
  gap:6px 4px;align-items:center;justify-items:center;
}
.halo-slot{grid-column:2;grid-row:1/4;position:relative;width:124px;height:124px}
.halo{
  position:absolute;inset:0;border-radius:50%;border:3px solid #b9bec1;
  transition:border-color .15s,box-shadow .15s;
}
.halo.halo-ready{border-color:#fff;box-shadow:0 0 12px rgba(255,255,255,.5)}
.halo.halo-warn{border-color:var(--yellow);box-shadow:0 0 14px rgba(242,197,61,.6)}
.halo.halo-fault{border-color:var(--red);box-shadow:0 0 16px rgba(224,52,60,.65)}
.pad{
  position:absolute;inset:7px;border-radius:50%;background:var(--pad);
  box-shadow:0 1px 2px rgba(0,0,0,.35),0 1px 0 rgba(255,255,255,.09) inset;
}

.key{
  appearance:none;border:none;background:transparent;cursor:pointer;
  color:#a8aeb1;display:flex;align-items:center;justify-content:center;
  font-family:var(--sans);transition:color .1s,filter .1s,transform .05s;
  padding:0;
}
.key svg{fill:none;stroke:currentColor;stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round}
.key:active,.key.is-pressed{transform:translateY(1px);filter:brightness(1.5)}
.key:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:50%}

.key.sq{
  width:40px;height:40px;border-radius:50%;
  box-shadow:0 0 0 1px #4d5257 inset;
}
.key.sq svg{width:24px;height:24px}
.key.sq .stack{display:flex;flex-direction:column;align-items:center;line-height:1.15}
.key.sq .stack b{font-size:8.5px;font-weight:500;letter-spacing:.02em}
.key.sq .stack em{width:20px;height:1px;background:currentColor;margin:1px 0}

.k-home{grid-column:1;grid-row:1}
.k-back{grid-column:3;grid-row:1}
.k-info{grid-column:1;grid-row:2}
.k-remloc{grid-column:3;grid-row:2}
.key.round.stop{grid-column:1;grid-row:3}
.key.round.run{grid-column:3;grid-row:3}

.key.nav{
  position:absolute;color:#c2c7ca;
  /* area sensibile ampia per il dito; il glifo resta piccolo come sul pannello */
  width:46px;height:38px;
}
.key.nav.left,.key.nav.right{width:38px;height:46px}
.key.nav::after{content:"";border:solid currentColor;border-width:0 2px 2px 0;
  width:9px;height:9px;display:block}
.key.nav.up{top:3px;left:50%;transform:translateX(-50%)}
.key.nav.up::after{transform:rotate(-135deg)}
.key.nav.down{bottom:3px;left:50%;transform:translateX(-50%)}
.key.nav.down::after{transform:rotate(45deg)}
.key.nav.left{left:3px;top:50%;transform:translateY(-50%)}
.key.nav.left::after{transform:rotate(135deg)}
.key.nav.right{right:3px;top:50%;transform:translateY(-50%)}
.key.nav.right::after{transform:rotate(-45deg)}
.key.nav.up:active,.key.nav.up.is-pressed,
.key.nav.down:active,.key.nav.down.is-pressed{transform:translateX(-50%) translateY(1px)}
.key.nav.left:active,.key.nav.left.is-pressed,
.key.nav.right:active,.key.nav.right.is-pressed{transform:translateY(-50%) translateY(1px)}

.key.ok{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;
  width:52px;height:52px;border-radius:50%;font-size:14px;letter-spacing:.04em;
  color:#c8cdd0;background:#4e5257;
  box-shadow:0 1px 2px rgba(0,0,0,.45),0 1px 0 rgba(255,255,255,.1) inset;
}
.key.ok:active,.key.ok.is-pressed{transform:translate(-50%,-50%) translateY(1px)}

.key.round{width:44px;height:44px}
.key.round svg{width:34px;height:34px;stroke-width:1.8}
.key.round.run{color:var(--green)}
.key.round.stop{color:var(--red-cmd)}

.lamps{
  display:flex;align-items:center;justify-content:center;gap:34px;
  margin-top:2px;padding-bottom:2px;
}
.lamp{display:flex;flex-direction:column;align-items:center;gap:2px;
  font-family:var(--sans);font-size:8px;letter-spacing:.06em;color:#8b9296}
.clamp{width:7px;height:7px;border-radius:50%;background:#5a5f64;display:block}
.clamp.on-run{background:#fff;box-shadow:0 0 6px rgba(255,255,255,.9)}
.clamp.on-off{background:#fff;box-shadow:0 0 6px rgba(255,255,255,.9)}
.nfc svg{width:20px;height:14px;fill:none;stroke:#8b9296;stroke-width:1.4;
  stroke-linecap:round;display:block}

.device-foot{margin-top:20px;text-align:center}
.hint{margin:12px auto 0;max-width:38ch;color:var(--muted);font-size:12px;line-height:1.7}
kbd{
  font-family:var(--mono);font-size:10.5px;background:var(--bg-2);
  border:1px solid var(--line);border-radius:4px;padding:1px 5px;color:var(--ink);
}


/* --- modalita' formazione ------------------------------------------------- */
.steps{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:7px}
.step{
  display:flex;align-items:flex-start;gap:10px;
  background:#171d21;border:1px solid var(--line);border-left-width:3px;
  border-radius:8px;padding:10px 12px;
  transition:border-color .15s,background .15s,color .15s;
}
.step-mark{
  flex:0 0 22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:11px;font-weight:600;
  background:#232b30;color:var(--muted);
}
.step-text{flex:1;font-size:13.5px;line-height:1.45;color:var(--muted)}
.step-count{
  font-family:var(--mono);font-size:12px;color:var(--amber);
  align-self:center;white-space:nowrap;
}

.step.intro{border-left-color:var(--amber);background:#1d1c17;opacity:1}
.step.intro .step-mark{background:transparent;color:var(--amber);
  font-style:italic;font-weight:700}
.step.intro .step-text{color:var(--ink)}
.step.todo{opacity:.62}
.step.current{
  border-color:var(--amber);border-left-color:var(--amber);
  background:#1e2126;
}
.step.current .step-mark{background:var(--amber);color:#1a1207}
.step.current .step-text{color:var(--ink);font-weight:500}
.step.done{border-left-color:var(--green-ok);background:#161f1a}
.step.done .step-mark{background:var(--green-ok);color:#07170c}
.step.done .step-text{color:#9fc7a9}
.step.wrong{
  border-color:var(--red);border-left-color:var(--red);background:#241619;
  animation:shake .3s;
}
.step.wrong .step-mark{background:var(--red);color:#fff}
.step.wrong .step-text{color:#f0b4b8}
@keyframes shake{
  25%{transform:translateX(-3px)}75%{transform:translateX(3px)}
}

.lesson-msg{margin:12px 0 0;font-size:13px;line-height:1.5;min-height:1px}
.lesson-msg.ok{color:var(--green-ok)}
.lesson-msg.err{color:#f0949a}
.trainer .btn-row{margin-top:12px}

/* tasto da premere adesso: alone pulsante sul pannello
   (classe distinta da .hint, che e' il promemoria della tastiera) */
.key.is-next{
  color:#fff;
  box-shadow:0 0 0 2px var(--amber),0 0 12px rgba(240,168,60,.7);
  border-radius:50%;
  animation:pulse 1.15s ease-in-out infinite;
}
.key.nav.is-next{border-radius:8px}
@keyframes pulse{50%{box-shadow:0 0 0 3px var(--amber),0 0 20px rgba(240,168,60,.95)}}

/* barra del passo corrente (solo su layout in colonna) */
.lesson-bar{display:none}
@media(max-width:900px){
  .lesson-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:50;
    display:flex;align-items:center;gap:11px;
    padding:12px 14px calc(12px + env(safe-area-inset-bottom));
    background:rgba(23,29,33,.97);border-top:1px solid var(--line);
    backdrop-filter:blur(8px);
    box-shadow:0 -6px 20px rgba(0,0,0,.5);
  }
  .lesson-bar[hidden]{display:none}
  body.lesson-on{padding-bottom:96px}
}
.lesson-bar-num{
  flex:0 0 26px;height:26px;border-radius:50%;background:var(--amber);color:#1a1207;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12px;font-weight:700;
}
.lesson-bar-text{flex:1;font-size:13.5px;line-height:1.35;color:var(--ink)}
.lesson-bar-prog{font-family:var(--mono);font-size:12px;color:var(--muted);white-space:nowrap}
.lesson-bar.is-wrong{background:rgba(46,22,26,.97);border-top-color:var(--red)}
.lesson-bar.is-wrong .lesson-bar-num{background:var(--red);color:#fff}
.lesson-bar.is-done{background:rgba(20,38,27,.97);border-top-color:var(--green-ok)}
.lesson-bar.is-done .lesson-bar-num{background:var(--green-ok);color:#07170c}


/* --- uscita verso il motore ------------------------------------------------ */
.out-state{
  margin:0 0 14px;font-size:13px;color:var(--muted);
  padding:9px 12px;border-radius:8px;background:#171d21;
  border-left:3px solid var(--line);
}
.out-state.is-run{color:#9fc7a9;border-left-color:var(--green-ok);background:#161f1a}
.out-state.is-fault{color:#f0949a;border-left-color:var(--red);background:#241619}

.out-list{margin:0;display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:9px;overflow:hidden}
.out-row{
  background:#171d21;padding:9px 12px 10px;position:relative;
  display:grid;grid-template-columns:1fr auto;align-items:baseline;gap:10px;
}
.out-row dt{display:flex;align-items:baseline;gap:7px;min-width:0}
.out-name{
  font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;
}
.out-idx{
  font-family:var(--mono);font-size:10px;color:var(--amber);
  background:rgba(240,168,60,.1);border-radius:4px;padding:1px 5px;flex:0 0 auto;
}
.out-row dd{margin:0;font-family:var(--mono);white-space:nowrap}
.out-val{font-size:17px;color:var(--ink);font-weight:600}
.out-unit{font-size:11px;color:var(--muted);margin-left:4px}

.out-bar{
  grid-column:1/-1;height:3px;border-radius:2px;background:#232b30;
  margin-top:7px;overflow:hidden;
}
.out-bar i{
  display:block;height:100%;width:0;border-radius:2px;background:var(--green-ok);
  transition:width .18s linear,background .18s;
}
.out-bar i.over{background:var(--red)}

.outputs.is-idle .out-val{color:var(--muted)}
.outputs.is-idle .out-list{opacity:.72}
.out-foot{margin:12px 0 0;font-size:11.5px;color:var(--muted);
  padding-left:11px;border-left:2px solid var(--line);line-height:1.5}

@media(max-width:359px){
  .out-name{font-size:11.5px}
  .out-val{font-size:15px}
}


/* --- combinazioni di tasti ------------------------------------------------- */
.combos{
  margin-top:18px;padding:14px 15px 15px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:11px;
  text-align:left;
}
.combos-title{
  margin:0 0 6px;font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--amber);font-weight:600;
}
.combos-note{margin:0 0 12px;font-size:12.5px;color:var(--muted);line-height:1.5}
.combos-note b{color:var(--ink)}

.combo-list{display:grid;gap:7px}
.combo{
  appearance:none;width:100%;text-align:left;cursor:pointer;
  background:#171d21;border:1px solid var(--line);border-left-width:3px;
  border-radius:8px;padding:10px 12px;color:inherit;font-family:inherit;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  transition:border-color .12s,background .12s,opacity .12s;min-height:44px;
}
.combo:hover{border-color:var(--amber)}
.combo:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.combo-name{font-size:13px;color:var(--ink)}
.combo-keys{
  font-family:var(--mono);font-size:11px;color:var(--muted);white-space:nowrap;
  background:#232b30;border-radius:5px;padding:3px 7px;
}
.combo.armed{
  border-color:var(--amber);border-left-color:var(--amber);background:#1e2126;
}
.combo.armed .combo-keys{background:var(--amber);color:#1a1207;font-weight:600}
.combo.dim{opacity:.4}

.combo-hint{margin:11px 0 0;font-size:12.5px;line-height:1.5;min-height:1px;color:var(--muted)}
.combo-hint.armed{color:var(--amber)}
.combo-hint.ok{color:var(--green-ok)}

/* tasti coinvolti nella combinazione armata */
.key.is-combo{
  color:#fff;box-shadow:0 0 0 2px var(--amber),0 0 12px rgba(240,168,60,.65);
  border-radius:50%;animation:pulse 1.15s ease-in-out infinite;
}
.key.nav.is-combo{border-radius:8px}
.key.is-combo-done{
  color:#fff;box-shadow:0 0 0 2px var(--green-ok);border-radius:50%;
}
.key.nav.is-combo-done{border-radius:8px}

/* --- pannelli laterali ---------------------------------------------------- */
.side{display:grid;gap:16px}
.card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:12px;
  padding:18px 18px 20px;
}
.card h2{
  margin:0;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  font-family:var(--mono);color:var(--amber);font-weight:600;
}
.card-note{margin:6px 0 16px;font-size:13px;color:var(--muted)}
.sub{
  margin:18px 0 8px;font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
}

.ctl{display:block;margin-bottom:14px}
.ctl span{display:block;font-size:13px;margin-bottom:2px}
/* traccia sottile come prima, ma il campo e' alto 30px: e' quello che il dito
   deve colpire, non i 3px della traccia */
input[type=range]{
  width:100%;appearance:none;height:34px;background:transparent;margin:0;
  display:block;cursor:pointer;
}
input[type=range]::-webkit-slider-runnable-track{
  height:3px;border-radius:2px;background:var(--line);
}
input[type=range]::-moz-range-track{
  height:3px;border-radius:2px;background:var(--line);
}
input[type=range]::-webkit-slider-thumb{
  appearance:none;width:22px;height:22px;border-radius:50%;background:var(--amber);
  border:none;margin-top:-9.5px;box-shadow:0 1px 4px rgba(0,0,0,.5);
}
input[type=range]::-moz-range-thumb{
  width:22px;height:22px;border-radius:50%;background:var(--amber);border:none;
  box-shadow:0 1px 4px rgba(0,0,0,.5);
}
input[type=range]:focus-visible{outline:2px solid var(--amber);outline-offset:4px}

.switch{display:flex;align-items:center;gap:10px;font-size:13px;cursor:pointer;
  min-height:44px}
.switch input{accent-color:var(--amber);width:22px;height:22px}

.pumps{display:flex;gap:8px;flex-wrap:wrap}
.pumps label{
  display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:12px;
  background:#171d21;border:1px solid var(--line);border-radius:7px;
  padding:9px 11px;cursor:pointer;min-height:44px;
}
.pumps input{accent-color:var(--green);width:19px;height:19px}

.readout{
  margin:18px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;
}
.readout div{background:#171d21;padding:9px 11px}
.readout dt{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.readout dd{margin:3px 0 0;font-family:var(--mono);font-size:12px;color:var(--muted)}
.readout dd b{font-size:17px;color:var(--ink);font-weight:600}

.btn-row{display:flex;gap:8px;flex-wrap:wrap}
.ghost{
  appearance:none;background:#171d21;color:var(--ink);
  border:1px solid var(--line);border-radius:8px;
  padding:9px 13px;font-size:13px;font-family:inherit;cursor:pointer;
  transition:border-color .12s,color .12s;
}
.ghost:hover{border-color:var(--amber);color:var(--amber)}
.ghost:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
select{
  flex:1 1 150px;min-width:0;max-width:100%;
  background:#171d21;color:var(--ink);border:1px solid var(--line);
  border-radius:8px;padding:9px 10px;font-size:13px;font-family:inherit;
}

.provenance .facts{
  margin:0 0 14px;display:grid;gap:10px;
  grid-template-columns:repeat(auto-fit,minmax(78px,1fr));
}
.provenance .facts dt{
  font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
}
.provenance .facts dd{
  margin:2px 0 0;font-family:var(--mono);font-size:21px;color:var(--amber);font-weight:600;
}
.src{
  margin:0 0 14px;font-family:var(--mono);font-size:11px;color:var(--muted);
  word-break:break-word;line-height:1.6;
}
.warn-note{
  margin:0 0 10px;font-size:12.5px;color:var(--muted);line-height:1.6;
  padding-left:11px;border-left:2px solid var(--line);
}
.warn-note b{color:var(--ink);font-weight:600}

/* il promemoria della tastiera non serve su schermo tattile */
@media(hover:none) and (pointer:coarse){ .hint{display:none} }

@media(max-width:359px){ .readout{grid-template-columns:1fr} }

@media(max-width:430px){
  .halo-slot{width:132px;height:132px}
  .key.ok{width:54px;height:54px}
  .ghost{padding:11px 14px;min-height:44px}
  select{min-height:44px}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}