/* Pagina di presentazione di NettoBoard (29 settembre 2026).
   Chi apre il sito senza una licenza su questo dispositivo vede questa pagina; chi ce l'ha (o apre
   l'app installata, o arriva con #accedi) va dritto all'app. Lo decide /avvio.js prima di disegnare.
   Solo tema chiaro, come le copertine: e' una pagina di vendita, non l'app. */

html.nb-vetrina, html.nb-vetrina body { overflow: auto; height: auto; overscroll-behavior: auto; background: #F3F5F1; color-scheme: light; }
html.nb-app #nb-presentazione { display: none; }
html:not(.nb-app) #caricamento { display: none; }

#nb-presentazione {
  --v-teal: #123A34; --v-teal-2: #1E5C51; --v-gold: #C9973E; --v-gold-text: #8A6420;
  --v-bg: #F3F5F1; --v-card: #FFFFFF; --v-ink: #14201C; --v-muted: #56655F; --v-line: #E2E7E1; --v-tint: #EAF0EA;
  color: var(--v-ink); background: var(--v-bg); font-size: 18px; line-height: 1.55;
}
#nb-presentazione a { color: inherit; }
#nb-presentazione *, #nb-presentazione *::before, #nb-presentazione *::after { box-sizing: border-box; }
#nb-presentazione img { max-width: 100%; height: auto; display: block; }
.v-contenuto { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

/* barra in alto */
.v-barra { position: sticky; top: 0; z-index: 5; background: rgba(243,245,241,.92); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid transparent; }
.v-barra .v-contenuto { display: flex; align-items: center; gap: 20px; height: 72px; }
.v-logo { display: flex; align-items: center; gap: 12px; font-weight: 750; font-size: 21px; letter-spacing: -0.3px; text-decoration: none; color: var(--v-teal) !important; }
.v-logo img { width: 38px; height: 38px; border-radius: 9px; box-shadow: 0 2px 8px rgba(18,58,52,.18); }
.v-menu { display: flex; gap: 26px; margin-left: 18px; font-size: 15.5px; }
.v-menu a { text-decoration: none; color: var(--v-muted) !important; font-weight: 500; }
.v-menu a:hover { color: var(--v-ink) !important; }
.v-azioni { margin-left: auto; display: flex; gap: 10px; align-items: center; }

.v-bottone { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 20px; border-radius: 12px; font: inherit; font-size: 16px; font-weight: 650; text-decoration: none; cursor: pointer; border: 1px solid transparent; white-space: nowrap; }
.v-primario { background: var(--v-teal); color: #fff !important; }
.v-primario:hover { background: var(--v-teal-2); }
.v-oro { background: var(--v-gold); color: #1A1407 !important; }
.v-oro:hover { background: #D6A54C; }
.v-secondario { background: transparent; color: var(--v-teal) !important; border-color: #C9D3CC; }
.v-secondario:hover { background: #fff; }
.v-grande { min-height: 54px; padding: 14px 26px; font-size: 18px; border-radius: 14px; }
.v-bottone:focus-visible, .v-menu a:focus-visible, .v-logo:focus-visible { outline: 3px solid var(--v-gold); outline-offset: 3px; }

/* apertura: testo sul chiaro, schermate sul verde (come la copertina A3) */
.v-eroe { position: relative; overflow: hidden; }
.v-eroe::after { content: ""; position: absolute; top: 0; bottom: 0; right: 0; width: 44%; background: radial-gradient(900px 700px at 70% 10%, #1E5C51 0%, #123A34 60%, #0C2824 100%); z-index: 0; }
.v-eroe .v-contenuto { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; min-height: 620px; padding-top: 56px; padding-bottom: 72px; }
.v-eroe h1 { font-size: 56px; line-height: 1.06; letter-spacing: -1.8px; font-weight: 780; margin: 0; }
.v-eroe h1 em { font-style: normal; color: var(--v-gold); }
.v-riga-oro { width: 84px; height: 6px; border-radius: 3px; background: var(--v-gold); margin: 30px 0 26px; }
.v-eroe .v-sotto { font-size: 21px; color: var(--v-muted); margin: 0 0 30px; max-width: 520px; }
.v-eroe .v-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.v-prezzo-breve { font-size: 15px; color: var(--v-muted); margin-top: 16px; }
.v-scena { position: relative; min-height: 460px; }
.v-finestra { border-radius: 14px; overflow: hidden; background: #fff; box-shadow: 0 30px 80px rgba(0,0,0,.35), 0 3px 10px rgba(0,0,0,.18); }
.v-finestra .v-punti { height: 26px; background: #E9EDE8; display: flex; align-items: center; gap: 7px; padding: 0 12px; }
.v-finestra .v-punti i { width: 9px; height: 9px; border-radius: 50%; background: #CBD3CC; display: block; }
.v-scena .v-finestra { position: absolute; left: 70px; top: 10px; width: 760px; }
.v-telefono { border-radius: 38px; padding: 9px; background: #0E1512; box-shadow: 0 28px 70px rgba(0,0,0,.4); }
.v-telefono img { border-radius: 30px; }
.v-scena .v-telefono { position: absolute; left: -10px; top: 150px; width: 210px; }

/* sezioni */
.v-sezione { padding: 96px 0; }
.v-sezione.v-chiara { background: #fff; }
.v-occhiello { font-size: 14px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; color: var(--v-gold-text); margin-bottom: 12px; }
.v-sezione h2 { font-size: 40px; line-height: 1.12; letter-spacing: -1.1px; font-weight: 760; margin: 0 0 18px; max-width: 820px; }
.v-sezione .v-intro { font-size: 20px; color: var(--v-muted); max-width: 760px; margin: 0; }
.v-esempio { margin-top: 36px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.v-riquadro { background: var(--v-card); border: 1px solid var(--v-line); border-radius: 18px; padding: 24px 24px 22px; }
.v-sezione.v-chiara .v-riquadro { background: var(--v-bg); border-color: transparent; }
.v-riquadro .v-numero { font-size: 34px; font-weight: 780; letter-spacing: -1px; color: var(--v-teal); }
.v-riquadro h3 { font-size: 19px; margin: 6px 0 6px; font-weight: 700; letter-spacing: -0.2px; }
.v-riquadro p { margin: 0; font-size: 16.5px; color: var(--v-muted); }
.v-passi { counter-reset: passo; margin-top: 40px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.v-passi .v-riquadro::before { counter-increment: passo; content: counter(passo); display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--v-teal); color: #fff; font-weight: 700; font-size: 17px; margin-bottom: 10px; }

.v-funzione { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; margin-top: 72px; }
.v-funzione:first-of-type { margin-top: 48px; }
.v-funzione.v-rovescia { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.v-funzione.v-rovescia .v-testo { order: 2; }
.v-funzione h3 { font-size: 30px; line-height: 1.15; letter-spacing: -0.7px; margin: 0 0 14px; font-weight: 760; }
.v-funzione p { color: var(--v-muted); margin: 0 0 12px; }
.v-funzione ul { margin: 12px 0 0; padding: 0; list-style: none; }
.v-funzione li { padding-left: 26px; position: relative; margin: 8px 0; font-size: 17px; }
.v-funzione li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 10px; height: 10px; border-radius: 3px; background: var(--v-gold); }
.v-coppia-telefoni { display: flex; gap: 22px; justify-content: center; }
.v-coppia-telefoni .v-telefono { width: 250px; }
.v-foglio { max-width: 420px; margin: 0 auto; border-radius: 8px; overflow: hidden; box-shadow: 0 24px 60px rgba(18,58,52,.22); border: 1px solid var(--v-line); }

.v-elenco-piccolo { margin-top: 44px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }

/* fascia verde: dati e privacy */
.v-verde { background: radial-gradient(1100px 800px at 80% 0%, #1E5C51 0%, #123A34 58%, #0C2824 100%); color: #fff; }
.v-verde h2 { color: #fff; }
.v-verde .v-intro, .v-verde p { color: rgba(255,255,255,.82); }
.v-verde .v-occhiello { color: #E3B876; }
.v-verde .v-riquadro { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.14); }
.v-verde .v-riquadro h3 { color: #fff; }
.v-verde .v-riquadro p { color: rgba(255,255,255,.78); }

/* prezzi */
.v-prezzi { margin-top: 40px; display: grid; grid-template-columns: repeat(2, minmax(0, 360px)); gap: 20px; }
.v-piano { background: #fff; border: 1px solid var(--v-line); border-radius: 20px; padding: 28px; position: relative; }
.v-piano.v-consigliato { border: 2px solid var(--v-teal); }
.v-etichetta { position: absolute; top: -13px; left: 24px; background: var(--v-gold); color: #1A1407; font-size: 13px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.v-piano h3 { margin: 0; font-size: 18px; font-weight: 650; color: var(--v-muted); }
.v-cifra { font-size: 46px; font-weight: 790; letter-spacing: -1.5px; margin: 8px 0 2px; }
.v-cifra small { font-size: 18px; font-weight: 600; color: var(--v-muted); letter-spacing: 0; }
.v-piano p { margin: 0 0 20px; color: var(--v-muted); font-size: 16px; }
.v-piano .v-bottone { width: 100%; }
.v-garanzie { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px 28px; color: var(--v-muted); font-size: 16px; }
.v-garanzie span::before { content: "✓"; color: var(--v-teal); font-weight: 800; margin-right: 8px; }

/* domande */
.v-domande { margin-top: 36px; max-width: 860px; }
.v-domande details { border-bottom: 1px solid var(--v-line); padding: 4px 0; }
.v-domande summary { cursor: pointer; list-style: none; font-weight: 650; font-size: 18.5px; padding: 18px 40px 18px 0; position: relative; }
.v-domande summary::-webkit-details-marker { display: none; }
.v-domande summary::after { content: "+"; position: absolute; right: 6px; top: 12px; font-size: 28px; font-weight: 400; color: var(--v-teal); }
.v-domande details[open] summary::after { content: "−"; }
.v-domande details p { margin: 0 0 20px; color: var(--v-muted); }
.v-non-fa { margin-top: 36px; background: var(--v-tint); border-radius: 16px; padding: 22px 26px; max-width: 860px; }
.v-non-fa strong { display: block; margin-bottom: 4px; }
.v-non-fa p { margin: 0; color: var(--v-muted); }

/* chiusura e piede */
.v-chiusura { text-align: center; }
.v-chiusura h2 { margin-left: auto; margin-right: auto; }
.v-chiusura .v-cta { justify-content: center; display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.v-piede { background: #0C2824; color: rgba(255,255,255,.7); font-size: 15px; padding: 36px 0 44px; }
.v-piede .v-contenuto { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; }
.v-piede a { color: rgba(255,255,255,.86) !important; }
.v-piede .v-logo { color: #fff !important; font-size: 18px; }
.v-piede .v-logo img { width: 30px; height: 30px; }
.v-piede .v-link { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.v-piede .v-link a { display: inline-flex; align-items: center; min-height: 44px; }

/* tablet e telefono */
@media (max-width: 980px) {
  .v-menu { display: none; }
  .v-eroe::after { display: none; }
  .v-eroe .v-contenuto { grid-template-columns: 1fr; min-height: 0; padding-top: 36px; padding-bottom: 0; gap: 36px; }
  .v-eroe h1 { font-size: 42px; letter-spacing: -1.2px; }
  .v-scena { min-height: 0; margin: 0 -28px; padding: 36px 28px 40px; background: radial-gradient(700px 500px at 70% 0%, #1E5C51 0%, #123A34 60%, #0C2824 100%); display: flex; justify-content: center; gap: 18px; }
  .v-scena .v-finestra { display: none; }
  .v-scena .v-telefono { position: static; width: 240px; }
  .v-sezione { padding: 64px 0; }
  .v-sezione h2 { font-size: 32px; }
  .v-esempio, .v-passi, .v-elenco-piccolo { grid-template-columns: 1fr; }
  .v-funzione, .v-funzione.v-rovescia { grid-template-columns: 1fr; gap: 26px; margin-top: 56px; }
  .v-funzione.v-rovescia .v-testo { order: 0; }
  .v-prezzi { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  #nb-presentazione { font-size: 17px; }
  .v-contenuto { padding: 0 18px; }
  .v-barra .v-contenuto { height: 64px; gap: 10px; }
  .v-logo span { display: none; }
  .v-azioni .v-bottone { padding: 8px 14px; font-size: 15px; min-height: 40px; }
  .v-eroe h1 { font-size: 35px; }
  .v-eroe .v-sotto { font-size: 18.5px; }
  .v-scena { margin: 0 -18px; padding: 30px 18px 34px; }
  .v-scena .v-telefono { width: 200px; }
  .v-coppia-telefoni .v-telefono { width: 44%; }
  .v-funzione h3 { font-size: 25px; }
  .v-cifra { font-size: 40px; }
  .v-grande { width: 100%; }
}
@media (prefers-reduced-motion: no-preference) { html.nb-vetrina { scroll-behavior: smooth; } }