:root {
  --blu: #0f3d4a; --acqua: #2ec4b6; --chiaro: #e8f6f7; --testo: #1d2a2e; --grigio: #5b6b70;
  --bordo: #d5e1e3; --fondo: #f5f8f9; --rosso: #b03a2e; --verde: #1e8a4c; --giallo: #b07d00;
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; color: var(--testo); background: var(--fondo); }
a { color: var(--blu); }
header.barra { background: var(--blu); color: #fff; padding: 10px 16px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
header.barra .logo { font-weight: 800; font-size: 20px; letter-spacing: .3px; color: #fff; text-decoration: none; }
header.barra .logo span { color: var(--acqua); }
header.barra nav { display: flex; gap: 14px; flex-wrap: wrap; margin-left: auto; font-size: 15px; }
header.barra nav a { color: #d7eef1; text-decoration: none; }
header.barra nav a:hover { color: #fff; text-decoration: underline; }
main { max-width: 980px; margin: 0 auto; padding: 20px 16px 48px; }
main.largo { max-width: 1400px; }
h1 { font-size: 24px; margin: 4px 0 14px; color: var(--blu); }
h2 { font-size: 19px; margin: 24px 0 10px; color: var(--blu); }
.card { background: #fff; border: 1px solid var(--bordo); border-radius: 10px; padding: 16px; margin-bottom: 14px; }
.lista { list-style: none; padding: 0; margin: 0; }
.lista li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px 4px; border-bottom: 1px solid var(--bordo); }
.lista li:last-child { border-bottom: 0; }
.lista a.titolo { font-weight: 600; text-decoration: none; }
.chip { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.chip.ok { background: #d8f3e3; color: var(--verde); }
.chip.ko { background: #fadcd8; color: var(--rosso); }
.chip.warn { background: #fff0c7; color: var(--giallo); }
.chip.prog { background: #dcebfb; color: #1f5fa8; }
.chip.todo { background: #edf1f2; color: var(--grigio); }
.chip.bozza { background: #fff0c7; color: var(--giallo); }
.muto { color: var(--grigio); font-size: 14px; }
.btn { display: inline-block; background: var(--blu); color: #fff; border: 0; border-radius: 8px; padding: 10px 18px; font-size: 16px; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(1.15); }
.btn.sec { background: #fff; color: var(--blu); border: 1.5px solid var(--blu); }
.btn.piccolo { padding: 5px 10px; font-size: 14px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
form.riga { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; }
label { display: block; font-size: 14px; font-weight: 600; margin: 10px 0 4px; }
input[type=text], input[type=password], input[type=date], select { width: 100%; padding: 10px 12px; font-size: 16px; border: 1.5px solid var(--bordo); border-radius: 8px; background: #fff; }
input:focus { outline: 2px solid var(--acqua); border-color: var(--acqua); }
.errore { background: #fadcd8; color: var(--rosso); padding: 10px 12px; border-radius: 8px; margin: 10px 0; }
.avviso { background: #fff4d6; border-left: 4px solid #e0a800; padding: 10px 12px; border-radius: 6px; margin: 10px 0; }
.successo { background: #d8f3e3; color: var(--verde); padding: 10px 12px; border-radius: 8px; margin: 10px 0; }
.accesso { max-width: 400px; margin: 8vh auto; }
.accesso .logo { text-align: center; font-size: 34px; font-weight: 800; color: var(--blu); margin-bottom: 4px; }
.accesso .logo span { color: var(--acqua); }
video { width: 100%; border-radius: 10px; background: #000; display: block; }
.barra-prog { height: 10px; background: #e3ecee; border-radius: 99px; overflow: hidden; margin: 8px 0 4px; }
.barra-prog div { height: 100%; background: var(--acqua); transition: width .4s; }
.passi { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; margin: 14px 0; }
.passo { border: 1.5px solid var(--bordo); border-radius: 10px; padding: 10px 12px; background: #fff; font-size: 14px; }
.passo b { display: block; font-size: 15px; }
.passo.fatto { border-color: var(--verde); background: #f1fbf5; }
.sintesi { font-size: 16px; }
.sintesi h1, .sintesi h2, .sintesi h3 { color: var(--blu); }
.sintesi table { border-collapse: collapse; }
.sintesi td, .sintesi th { border: 1px solid var(--bordo); padding: 4px 8px; }
.domanda { background: #fff; border: 1px solid var(--bordo); border-radius: 10px; padding: 14px 16px; margin-bottom: 12px; }
.domanda p { margin: 0 0 8px; font-weight: 600; }
.opz { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; border-radius: 8px; cursor: pointer; font-weight: 400; margin: 2px 0; }
.opz:hover { background: var(--chiaro); }
.opz input { margin-top: 4px; width: 18px; height: 18px; }
.opz.giusta { background: #d8f3e3; }
.opz.sbagliata { background: #fadcd8; }
table.griglia { border-collapse: collapse; width: 100%; font-size: 14px; background: #fff; }
table.griglia th, table.griglia td { border: 1px solid var(--bordo); padding: 6px 8px; text-align: left; vertical-align: middle; }
table.griglia th { background: var(--blu); color: #fff; font-weight: 600; }
table.griglia th.rot { writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; max-height: 220px; font-size: 13px; }
.scorri { overflow-x: auto; }
.password-nuova { font-family: ui-monospace, Menlo, monospace; font-size: 22px; background: #fff; padding: 8px 12px; border-radius: 8px; display: inline-block; border: 2px dashed var(--acqua); }
.dichiarazione { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.dichiarazione input { margin-top: 5px; width: 20px; height: 20px; }

details.argomento { padding: 0; }
details.argomento > summary { list-style: none; cursor: pointer; padding: 16px; border-radius: 10px; }
details.argomento > summary::-webkit-details-marker { display: none; }
details.argomento > summary:hover { background: var(--chiaro); }
details.argomento[open] > summary { border-bottom: 1px solid var(--bordo); border-radius: 10px 10px 0 0; }
.argomento-testa { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.argomento-testa h2 { margin: 0 0 2px; }
.argomento-testa h2::before { content: "▸ "; color: var(--acqua); }
details[open] .argomento-testa h2::before { content: "▾ "; }
.argomento-testa .muto { margin: 0; }
details.argomento .lista { padding: 0 16px 8px; }
details.argomento .successo { margin: 12px 16px 0; }
.prossimo { display: block; margin: 12px 16px 0; padding: 12px 14px; background: var(--chiaro); border: 1.5px solid var(--acqua); border-radius: 8px; text-decoration: none; }
.lista li.fatto a.titolo { color: var(--grigio); }

/* --- navigazione in basso (telefono) --- */
.tab-bar { display: none; }
.installa { position: fixed; left: 12px; right: 12px; bottom: 16px; z-index: 30; display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1.5px solid var(--acqua); border-radius: 14px; padding: 10px 12px; box-shadow: 0 8px 28px rgba(15,61,74,.22);
  max-width: 520px; margin: 0 auto; }
.installa[hidden] { display: none; }
.installa img { border-radius: 10px; flex: none; }
.installa-testo { flex: 1; font-size: 14px; line-height: 1.35; }
.installa-testo b { display: block; font-size: 15px; color: var(--blu); }
.installa-chiudi { background: none; border: 0; font-size: 24px; color: var(--grigio); padding: 0 4px; cursor: pointer; }
.menu-voci { padding: 0; }
.menu-voci a { display: flex; justify-content: space-between; padding: 15px 16px; border-bottom: 1px solid var(--bordo); text-decoration: none; font-weight: 600; }
.menu-voci a:last-child { border-bottom: 0; }

@media (max-width: 760px) {
  body { font-size: 16px; -webkit-text-size-adjust: 100%; }
  body.con-tab { padding-bottom: calc(66px + env(safe-area-inset-bottom)); }
  header.barra { padding: calc(10px + env(safe-area-inset-top)) 16px 10px; justify-content: center; }
  .nav-desktop { display: none !important; }
  .tab-bar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: #fff;
    border-top: 1px solid var(--bordo); padding-bottom: env(safe-area-inset-bottom); }
  .tab-bar a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 0 7px;
    font-size: 11.5px; font-weight: 600; color: var(--grigio); text-decoration: none; }
  .tab-bar a.attiva { color: var(--blu); }
  .tab-bar .ico svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
  .tab-bar a.attiva .ico svg { stroke: var(--acqua); }
  .installa { bottom: calc(76px + env(safe-area-inset-bottom)); }
  body:not(.con-tab) .installa { bottom: calc(16px + env(safe-area-inset-bottom)); }

  main { padding: 14px 12px 28px; }
  h1 { font-size: 21px; line-height: 1.25; }
  h2 { font-size: 18px; }
  .card { padding: 14px; border-radius: 12px; }
  .lista li { padding: 12px 2px; }
  .lista li > div { min-width: 0; }
  .lista a.titolo { display: block; line-height: 1.3; }
  .chip { font-size: 12px; padding: 2px 8px; }
  details.argomento > summary { padding: 14px; }
  details.argomento .lista { padding: 0 14px 6px; }
  .prossimo { margin: 12px 14px 0; padding: 14px; font-size: 15px; }

  /* video a tutta larghezza */
  .card:has(> video) { margin-left: -12px; margin-right: -12px; border-radius: 0; border-left: 0; border-right: 0; padding: 0 0 12px; }
  .card:has(> video) video { border-radius: 0; }
  .card:has(> video) > :not(video) { margin-left: 14px; margin-right: 14px; }
  .passi { grid-template-columns: 1fr 1fr; gap: 8px; }
  .passo { padding: 8px 10px; font-size: 13px; }

  /* quiz: opzioni grandi da toccare, pulsante sempre a portata */
  .domanda { padding: 14px 12px; }
  .opz { padding: 12px; border: 1.5px solid var(--bordo); margin: 8px 0; border-radius: 10px; font-size: 16px; }
  .opz:has(input:checked) { border-color: var(--acqua); background: var(--chiaro); }
  .opz input { width: 22px; height: 22px; margin-top: 1px; flex: none; }
  .consegna { position: sticky; bottom: calc(74px + env(safe-area-inset-bottom)); width: 100%; padding: 14px; font-size: 17px;
    box-shadow: 0 6px 18px rgba(15,61,74,.25); }
  .btn { padding: 12px 18px; }
  form.riga > div { flex: 1 1 100%; }
  table.griglia { font-size: 13px; }
  .accesso { margin: 4vh auto; }
}