:root{--bg:#fffdf7;--card:#ffffff;--ink:#111111;--muted:#3d3d3d;--line:#9a9a9a;--accent:#0b4f9c;--accent-ink:#ffffff;--ok:#0f6b2f;--ok-bg:#e6f4ea;--err:#a1121b;--err-bg:#fde8ea;--warn-bg:#fff4cc;--focus:#ffbf00;--fs:20px}
*{box-sizing:border-box}
html{font-size:var(--fs);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Verdana,"Atkinson Hyperlegible",Tahoma,Arial,sans-serif;line-height:1.6;letter-spacing:.01em;word-spacing:.06em}
html.ridotto{--fs:22px}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
header.top{background:#11233a;color:#fff;padding:.6rem 0}
header.top .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:center}
header.top b{font-size:1.05rem}
header.top a{color:#fff}
main{padding:1.2rem 0 4rem}
h1{font-size:1.6rem;line-height:1.3;margin:.6rem 0 .8rem}
h2{font-size:1.3rem;line-height:1.35;margin:2rem 0 .6rem;padding-top:.4rem;border-top:3px solid var(--ink)}
h3{font-size:1.1rem}
p{margin:.5rem 0 .9rem}
a{color:var(--accent);text-decoration-thickness:2px;text-underline-offset:3px}
img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:6px}
code,pre{font-family:"DejaVu Sans Mono",Consolas,monospace;font-size:.92em}
pre{background:#f2f2f2;padding:.8rem;border-radius:6px;overflow-x:auto;white-space:pre-wrap}
.card{background:var(--card);border:2px solid var(--ink);border-radius:10px;padding:1rem 1.1rem;margin:1rem 0}
.item{background:var(--card);border:2px solid #555;border-radius:10px;padding:1rem 1.1rem;margin:1.1rem 0}
.item.risposto{border-color:var(--ok);box-shadow:inset 6px 0 0 var(--ok)}
.item-head{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;font-weight:bold}
.item-num{font-size:1.05rem}
.punti{font-weight:normal;color:var(--muted);white-space:nowrap;font-size:.9rem}
.item-testo{margin:.4rem 0 .8rem}
label{cursor:pointer}
.campo{margin:0 0 1rem}
.campo label{display:block;font-weight:bold;margin-bottom:.25rem}
input[type=text],input[type=password],input[type=number],textarea,select{font:inherit;font-size:1rem;color:var(--ink);background:#fff;border:2px solid var(--ink);border-radius:8px;padding:.55rem .7rem;width:100%;line-height:1.5}
textarea{min-height:5rem;resize:vertical}
select{width:auto;max-width:100%}
:focus-visible{outline:4px solid var(--focus);outline-offset:2px}
.scelte{display:flex;flex-direction:column;gap:.5rem}
.scelte.riga{flex-direction:row;flex-wrap:wrap}
.scelta{display:flex;gap:.7rem;align-items:flex-start;border:2px solid var(--line);border-radius:8px;padding:.55rem .8rem;background:#fff;min-height:2.6rem}
.scelta:has(input:checked){border-color:var(--accent);background:#e8f0fb;font-weight:bold}
.scelta input{width:1.3rem;height:1.3rem;margin:.25rem 0 0;flex:none;accent-color:var(--accent)}
.abbina-riga{display:grid;grid-template-columns:1fr minmax(10rem,auto);gap:.4rem 1rem;align-items:center;padding:.5rem 0;border-bottom:1px dashed var(--line)}
.abbina-riga:last-child{border-bottom:0}
.abbina-legenda{margin:.3rem 0 .8rem;padding:0;list-style:none}
.abbina-legenda li{margin:.2rem 0}
.contatore{font-size:.8rem;color:var(--muted);text-align:right}
.btn{font:inherit;font-weight:bold;font-size:1rem;border:2px solid var(--accent);background:var(--accent);color:var(--accent-ink);border-radius:10px;padding:.65rem 1.2rem;cursor:pointer;min-height:2.8rem}
.btn.alt{background:#fff;color:var(--accent)}
.btn.grande{font-size:1.15rem;padding:.8rem 1.6rem}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.azioni{display:flex;gap:.8rem;flex-wrap:wrap;align-items:center;margin:1rem 0}
.avviso{border-radius:10px;padding:.8rem 1rem;margin:1rem 0;border:2px solid}
.avviso.ok{background:var(--ok-bg);border-color:var(--ok);color:#0a3d1b}
.avviso.err{background:var(--err-bg);border-color:var(--err);color:#5c070c}
.avviso.info{background:var(--warn-bg);border-color:#8a6d00}
.avviso:empty{display:none}
.salvataggio{font-size:.85rem;color:var(--muted)}
.barra-invio{position:sticky;bottom:0;background:var(--bg);border-top:3px solid var(--ink);padding:.4rem 0;margin-top:2rem}
.barra-invio .azioni{margin:.3rem 0}
.barra-invio .avviso{margin:.4rem 0;padding:.5rem .8rem}
.barra-invio .salvataggio{margin:0}
@media (max-height:700px){.barra-invio{position:static}}
.trappola{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.solo-stampa{display:none}
.muted{color:var(--muted)}
.small{font-size:.85rem}
[hidden]{display:none!important}
table{border-collapse:collapse;width:100%}
th,td{border:1px solid var(--line);padding:.4rem .5rem;text-align:left;vertical-align:top}
.piano-tabella input[type=number]{width:100%;min-width:4.5rem}
.piano-tabella select{min-width:8.5rem}
input[type=file]{font:inherit;font-size:1rem;max-width:100%}
input[type=file]::file-selector-button{font:inherit;font-weight:bold;border:2px solid var(--accent);background:#fff;color:var(--accent);border-radius:10px;padding:.5rem 1rem;margin-right:.8rem;cursor:pointer}
.piano-tabella td{padding:.3rem}
.chi-scelte{display:flex;flex-wrap:wrap;gap:.3rem .8rem}
.chi-scelte label{display:flex;gap:.3rem;align-items:center;white-space:nowrap}
.chi-scelte input{width:1.2rem;height:1.2rem}
@media (max-width:600px){:root{--fs:18px}html.ridotto{--fs:20px}.abbina-riga{grid-template-columns:1fr}}
/* Timer per studente: barra in cima alla verifica, resta visibile scorrendo senza coprire le domande. */
.barra-tempo{position:sticky;top:0;z-index:20;display:flex;flex-wrap:wrap;align-items:center;gap:.2rem 1rem;background:#11233a;color:#fff;padding:.4rem 1rem;margin:0 0 .8rem;border-radius:0 0 10px 10px;box-shadow:0 2px 6px rgba(0,0,0,.25)}
.barra-tempo .etichetta{font-size:1rem}
.barra-tempo .tempo{font-size:2rem;font-weight:bold;font-variant-numeric:tabular-nums;line-height:1.1}
.barra-tempo .nota{flex:1 1 14rem;font-weight:bold}
.barra-tempo.attenzione{background:#8a5a00}
.barra-tempo.critico{background:#b00020}
.item{scroll-margin-top:4.5rem}
#verifica.bloccata #corpo{opacity:.65}
.blocco-tempo{font-size:1.1rem;font-weight:bold}
@media (max-height:700px){.barra-tempo .tempo{font-size:1.5rem}}
@media print{
  :root{--fs:12pt}
  body{background:#fff}
  header.top,.barra-invio,.btn,.azioni,.no-stampa,#inizio,.btn-controlli,.dlg-controlli{display:none!important}
  .item{break-inside:avoid;border:1px solid #000;box-shadow:none}
  textarea{display:none}
  .solo-stampa{display:block;white-space:pre-wrap;border:1px solid #000;min-height:3em;padding:.3em}
  a{color:#000}
  .scelta{border:1px solid #999}
}
a.btn{text-decoration:none;display:inline-flex;align-items:center}

/* Esercizi nell'editor (3G) */
.editor-griglia{display:grid;gap:.75rem;grid-template-columns:1fr}
@media (min-width:760px){.editor-griglia{grid-template-columns:1fr 1fr}}
.editor-colonna{display:flex;flex-direction:column;gap:.35rem;min-width:0}
.editor-etichetta{font-size:.9rem;font-weight:600}
textarea.editor-codice{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.95rem;line-height:1.5;min-height:16rem;tab-size:2;white-space:pre;overflow:auto;background:#fff}
.editor-anteprima{width:100%;min-height:16rem;flex:1;border:2px solid var(--ink);border-radius:8px;background:#fff}
.editor-piede{display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:center;justify-content:space-between;margin-top:.35rem}
.editor-ricomincia{font:inherit;font-size:.9rem;background:none;border:1px solid var(--ink);border-radius:8px;padding:.3rem .7rem;color:var(--ink);cursor:pointer}
@media print{.editor-griglia,.editor-piede{display:none}}

/* «?» Come funzionano i controlli: pulsante nell'intestazione (accesso e verifica) e finestra con i controlli anti-copia */
.btn-controlli{display:inline-flex;align-items:center;gap:.5rem;font:inherit;font-weight:bold;font-size:.95rem;color:#fff;background:transparent;border:2px solid #fff;border-radius:999px;padding:.3rem .9rem .3rem .35rem;cursor:pointer;min-height:2.6rem;margin-left:auto;white-space:nowrap}
.btn-controlli .segno{display:inline-grid;place-items:center;width:1.75rem;height:1.75rem;border-radius:50%;background:#fff;color:#11233a;font-size:1.2rem;line-height:1;flex:none}
.btn-controlli .testo-breve{display:none}
.btn-controlli:hover{background:rgba(255,255,255,.16)}
.btn-controlli:focus-visible{outline:4px solid var(--focus);outline-offset:2px}
@media (max-width:600px){.btn-controlli .testo{display:none}.btn-controlli .testo-breve{display:inline}}
.dlg-controlli{width:min(42rem,calc(100vw - 2rem));max-height:calc(100vh - 2rem);max-height:calc(100dvh - 2rem);margin:auto;border:3px solid var(--ink);border-radius:14px;padding:1.2rem 1.4rem;background:var(--card);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.45);overflow:auto;color-scheme:light}
.dlg-controlli::backdrop{background:rgba(17,35,58,.75)}
.dlg-testa{display:flex;align-items:center;gap:.8rem;margin:0 0 .4rem}
.dlg-testa h2{margin:0;border:0;padding:0;font-size:1.35rem;line-height:1.25}
.dlg-segno{display:inline-grid;place-items:center;width:2.4rem;height:2.4rem;border-radius:50%;background:#11233a;color:#fff;font-weight:bold;font-size:1.5rem;line-height:1;flex:none}
.dlg-intro{margin:.4rem 0 1rem}
.dlg-elenco{margin:0;padding-left:1.4rem;display:flex;flex-direction:column;gap:.55rem}
.dlg-elenco li{padding-left:.2rem}
.dlg-elenco b{color:#11233a}
.dlg-conseguenza{margin:1.2rem 0 .5rem;padding:.8rem 1rem;border:2px solid var(--err);border-radius:10px;background:var(--err-bg);color:#5c070c}
.dlg-chiusa{font-weight:bold;margin:.4rem 0 .4rem}
.dlg-controlli .azioni{margin:.6rem 0 0;justify-content:flex-end}
@media (max-width:600px){.dlg-controlli{padding:1rem;font-size:.95rem}.dlg-testa h2{font-size:1.2rem}.dlg-controlli .azioni .btn{width:100%}}
.dlg-elenco li.dlg-ai{background:var(--warn-bg);border:2px solid #8a6d00;border-radius:10px;padding:.6rem .8rem .6rem .5rem;margin-left:-.4rem}
.dlg-elenco li.dlg-ai b{color:#5c4600}
.dlg-positivo{margin:1rem 0 0;padding:.8rem 1rem;border:2px solid var(--ok);border-radius:10px;background:var(--ok-bg);color:#0a3d1b}

/* Bozze automatiche sul server (solo se attive per la verifica): riga sotto «risposte salvate su questo computer»,
   avviso di ripristino in cima alle domande e finestra di scelta fra due versioni (stesso stile del dialogo «?»). */
.salvataggio-server{margin-top:.1rem}
.barra-invio .salvataggio-server{margin:0}
.bozza-ripristino{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.6rem 1rem}
.bozza-ripristino p{margin:0;flex:1 1 20rem}
.bozza-ripristino .btn{flex:none}
.dlg-bozza .dlg-intro{margin-bottom:1rem}
.dlg-scelte{display:grid;gap:.7rem}
.dlg-scelte .btn{display:flex;flex-direction:column;align-items:flex-start;text-align:left;gap:.1rem;padding:.7rem 1.1rem;width:100%}
.dlg-scelte .btn small{font-weight:normal;font-size:.85rem;line-height:1.4}
.dlg-scelte .btn.alt small{color:var(--muted)}
@media (min-width:600px){.dlg-scelte{grid-template-columns:1fr 1fr}}