/* AddCAD BIM – stile comune a tutte le pagine */

:root {
  --viola: #6600ff;
  --viola-scuro: #4b00bd;
  --crema: #fff8dc;
  --testo: #1f1f2b;
  --grigio: #5b5b6b;
  --bordo: #e6dfc4;
  --bianco: #ffffff;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--testo);
  background: var(--bianco);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--viola); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.wrap-stretto { max-width: 900px; }

/* Intestazione */
.header { background: var(--bianco); border-bottom: 1px solid var(--bordo); position: sticky; top: 0; z-index: 10; }
.header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 10px; padding-bottom: 10px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.brand img { width: 56px; height: 56px; }
.brand strong { display: block; color: var(--viola); font-size: 18px; line-height: 1.2; }
.brand span { display: block; color: var(--grigio); font-size: 13px; line-height: 1.3; }
.header-contatti { font-size: 14px; text-align: right; white-space: nowrap; }
.header-contatti a { display: block; text-decoration: none; font-weight: bold; }

/* Menu */
.menu { background: var(--crema); border-bottom: 1px solid var(--bordo); }
.menu ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px 4px; }
.menu a { display: block; padding: 10px 10px; font-size: 14px; font-weight: bold; text-decoration: none; color: var(--viola); border-radius: 6px; }
.menu a:hover, .menu a[aria-current="page"] { background: var(--bianco); }
.menu a.evidenza { background: var(--viola); color: var(--bianco); }
.menu-toggle, .menu-label { display: none; }

/* Hero (home) */
.hero { background: var(--crema); padding: 32px 0 40px; }
.hero h1 { margin: 0 0 20px; font-size: clamp(26px, 4vw, 40px); line-height: 1.2; text-align: center; }
.hero img { margin: 0 auto; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,.12); }

/* Titolo delle pagine interne */
.page-head { background: var(--crema); border-bottom: 1px solid var(--bordo); padding: 28px 0; }
.page-head h1 { margin: 0; font-size: clamp(24px, 3.5vw, 34px); line-height: 1.25; }
.page-head p { margin: 8px 0 0; color: var(--grigio); font-size: 18px; }

/* Call to action */
.cta { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 28px; }
.cta-box { background: var(--bianco); border: 1px solid var(--bordo); border-radius: 10px; padding: 22px; text-align: center; }
.cta-box p { margin: 6px 0 0; color: var(--grigio); }
.cta-box .prezzo { font-size: 22px; font-weight: bold; color: var(--testo); }
.btn { display: inline-block; padding: 14px 26px; border-radius: 8px; font-size: 18px; font-weight: bold; text-decoration: none; }
.btn-primario { background: var(--viola); color: var(--bianco); border: 2px solid var(--viola); }
.btn-primario:hover { background: var(--viola-scuro); }
.btn-secondario { border: 2px solid var(--viola); color: var(--viola); background: var(--bianco); }
.btn-secondario:hover { background: var(--crema); }
.testo-corto { display: none; }

.banda-cta { background: var(--crema); border-top: 1px solid var(--bordo); text-align: center; padding: 32px 0; }
.banda-cta p { margin: 0 0 16px; font-size: 19px; font-weight: bold; }
.banda-cta .btn { margin: 4px; }

/* Sezioni */
section { padding: 40px 0; }
h2 { font-size: 26px; margin: 0 0 16px; color: var(--viola); }
h3 { font-size: 20px; margin: 0 0 8px; color: var(--viola-scuro); }
.tutorial { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.tutorial a { display: block; border: 1px solid var(--bordo); border-radius: 8px; padding: 6px; background: var(--bianco); }
.tutorial a:hover { border-color: var(--viola); }
.tutorial img { width: 100%; }

.caratteristiche ul { padding-left: 22px; columns: 2; column-gap: 40px; }
.caratteristiche li { margin-bottom: 10px; break-inside: avoid; }
.piattaforme { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 24px; padding: 0; list-style: none; }
.piattaforme li { background: var(--crema); border: 1px solid var(--bordo); border-radius: 999px; padding: 6px 14px; font-weight: bold; font-size: 15px; }

/* Testo con immagine affiancata (descrizione) */
.blocco { display: grid; grid-template-columns: 1fr 340px; gap: 32px; align-items: start; padding: 28px 0; border-bottom: 1px solid var(--bordo); }
.blocco:last-child { border-bottom: 0; }
.blocco.inverti { grid-template-columns: 340px 1fr; }
.blocco.inverti figure { order: -1; }
.blocco p { margin: 0 0 12px; }
.blocco figure { margin: 0; }
.blocco figure img { margin: 0 auto; border-radius: 6px; border: 1px solid var(--bordo); }
.blocco.largo { grid-template-columns: 1fr; }
.blocco.largo figure img { max-width: 600px; }

/* Riquadri e note */
.riquadro { background: var(--crema); border: 1px solid var(--bordo); border-radius: 10px; padding: 20px 22px; margin: 20px 0; }
.riquadro > :first-child { margin-top: 0; }
.riquadro > :last-child { margin-bottom: 0; }
.nota { font-size: 15px; color: var(--grigio); }

/* Elenco di schede (download, aggiornamenti) */
.schede { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.scheda { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; background: var(--bianco); border: 1px solid var(--bordo); border-radius: 10px; padding: 16px 20px; }
.scheda strong { font-size: 19px; }
.scheda .nota { display: block; }
.scheda .azioni { display: flex; gap: 10px; flex-wrap: wrap; }
.scheda .btn { font-size: 16px; padding: 10px 18px; }

/* Domande frequenti */
.faq details { border: 1px solid var(--bordo); border-radius: 10px; margin-bottom: 12px; background: var(--bianco); }
.faq summary { cursor: pointer; padding: 16px 20px; font-weight: bold; list-style: none; position: relative; padding-right: 48px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 24px; color: var(--viola); }
.faq details[open] summary::after { content: "–"; }
.faq details[open] summary { border-bottom: 1px solid var(--bordo); }
.faq .risposta { padding: 14px 20px 18px; }
.faq .risposta p { margin: 0 0 10px; }
.faq .risposta p:last-child { margin-bottom: 0; }

/* Video lezioni */
.video-lista { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; padding: 0; list-style: none; }
.video-lista a { display: block; border: 1px solid var(--bordo); border-radius: 8px; overflow: hidden; background: #808080; }
.video-lista a:hover { border-color: var(--viola); box-shadow: 0 2px 10px rgba(102,0,255,.18); }
.video-lista img { width: 100%; }

/* Listino */
.prezzo-tabella { width: 100%; border-collapse: collapse; margin: 0 0 12px; }
.prezzo-tabella th, .prezzo-tabella td { padding: 14px 16px; border-bottom: 1px solid var(--bordo); text-align: left; }
.prezzo-tabella th { background: var(--crema); }
.prezzo-tabella td:last-child, .prezzo-tabella th:last-child { text-align: right; white-space: nowrap; }
.prezzo-tabella .importo { font-size: 22px; font-weight: bold; }

/* Piè di pagina */
.footer { background: #1f1f2b; color: #e8e8ef; padding: 32px 0; font-size: 15px; }
.footer a { color: #d6c4ff; }
.footer .wrap { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; }
.footer h3 { margin: 0 0 8px; font-size: 16px; color: var(--bianco); }
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin-bottom: 6px; }

/* Mobile */
@media (max-width: 860px) {
  .header-contatti { display: none; }
  .menu-label {
    display: flex; align-items: center; gap: 10px; cursor: pointer;
    padding: 12px 0; font-weight: bold; color: var(--viola);
  }
  .menu-label::before { content: "☰"; font-size: 22px; line-height: 1; }
  .menu ul { display: none; flex-direction: column; padding-bottom: 10px; }
  .menu-toggle:checked ~ ul { display: flex; }
  .menu a { padding: 12px 10px; font-size: 16px; }
  .tutorial { grid-template-columns: 1fr; }
  .cta { gap: 10px; }
  .cta-box { padding: 14px 10px; }
  .cta-box p { font-size: 14px; }
  .cta-box .prezzo { font-size: 17px; }
  .cta .btn { display: block; padding: 12px 8px; font-size: 15px; }
  .cta .testo-lungo { display: none; }
  .cta .testo-corto { display: inline; }
  .caratteristiche ul { columns: 1; }
  .blocco, .blocco.inverti { grid-template-columns: 1fr; gap: 16px; }
  .blocco.inverti figure { order: 0; }
  .blocco figure img { max-height: 320px; width: auto; }
  .video-lista { grid-template-columns: 1fr; }
  .scheda .azioni, .scheda .btn { width: 100%; text-align: center; }
  .footer .wrap { grid-template-columns: 1fr; }
  .brand span { display: none; }
}