/* AURA – sito vetrina. Tema scuro, coerente con l'applicazione. */
:root {
  --bg: #0a0a10;
  --bg-2: #0f0f17;
  --pannello: #16161f;
  --pannello-2: #1d1d29;
  --bordo: #2a2a38;
  --testo: #f3f3f7;
  --testo-2: #b4b4c4;
  --testo-3: #8a8a9c;
  --accento: #f97316;
  --accento-2: #fb923c;
  --accento-scuro: #ea580c;
  --verde: #25d366;
  --raggio: 16px;
  --ombra: 0 24px 60px -20px rgba(0, 0, 0, .7);
  --wrap: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--testo);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -.02em; }
p { margin: 0; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.wrap-stretto { max-width: 820px; }

.salta {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--accento); color: #fff; padding: 8px 14px; border-radius: 8px;
}
.salta:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--accento-2); outline-offset: 3px; border-radius: 6px; }

/* ---------- Navigazione ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 10, 16, .82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.nav.scrolled { border-bottom-color: var(--bordo); }
.nav-in { display: flex; align-items: center; gap: 24px; height: 66px; }
.marchio { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: .08em; font-size: 19px; }
.marchio img { border-radius: 9px; }
.nav-link { display: flex; gap: 6px; margin-left: auto; }
.nav-link a {
  text-decoration: none; color: var(--testo-2); padding: 8px 12px; border-radius: 8px;
  font-size: 15px; font-weight: 500; transition: color .15s, background .15s;
}
.nav-link a:hover { color: var(--testo); background: var(--pannello); }

.burger {
  display: none; width: 44px; height: 44px; border: 1px solid var(--bordo); background: var(--pannello);
  border-radius: 10px; cursor: pointer; padding: 0; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.burger span { display: block; width: 20px; height: 2px; background: var(--testo); border-radius: 2px; transition: transform .2s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Pulsanti ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer;
  border-radius: 12px; border: 1px solid transparent; padding: 12px 20px;
  transition: transform .15s, box-shadow .15s, background .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primario {
  color: #fff; background: linear-gradient(135deg, var(--accento-2), var(--accento-scuro));
  box-shadow: 0 10px 28px -10px rgba(249, 115, 22, .7);
}
.btn-primario:hover { box-shadow: 0 14px 34px -10px rgba(249, 115, 22, .9); }
.btn-secondario { background: var(--pannello); border-color: var(--bordo); color: var(--testo); }
.btn-secondario:hover { border-color: var(--accento); }
.btn-whatsapp { background: var(--verde); color: #06260f; }
.btn-piccolo { padding: 9px 16px; font-size: 15px; }
.btn-grande { padding: 15px 26px; font-size: 17px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 56px 0 72px;
  background:
    radial-gradient(900px 480px at 82% 8%, rgba(249, 115, 22, .16), transparent 60%),
    radial-gradient(700px 400px at 5% 90%, rgba(249, 115, 22, .07), transparent 60%);
}
.hero-in { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: center; }
.sopratitolo {
  color: var(--accento-2); font-weight: 700; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px;
}
.hero h1 { font-size: clamp(32px, 4.4vw, 50px); font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--accento-2); }
.lead { font-size: 19px; color: var(--testo-2); margin-top: 22px; max-width: 34em; }
.cta-riga { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.cta-centro { justify-content: center; }
.nota-hero { margin-top: 18px; color: var(--testo-3); font-size: 14px; }
.hero-img { margin: 0; }

/* Finestra che incornicia gli screenshot */
.finestra {
  background: var(--pannello); border: 1px solid var(--bordo); border-radius: 14px;
  overflow: hidden; box-shadow: var(--ombra);
}
.finestra-barra { display: flex; align-items: center; gap: 7px; padding: 10px 14px; background: #101018; border-bottom: 1px solid var(--bordo); }
.finestra-barra i { width: 11px; height: 11px; border-radius: 50%; background: #34344a; display: block; }
.finestra-barra i:nth-child(1) { background: #ef5350; }
.finestra-barra i:nth-child(2) { background: #fbc02d; }
.finestra-barra i:nth-child(3) { background: #43a047; }
.finestra-barra span { margin-left: 10px; font-size: 12.5px; color: var(--testo-3); }
.finestra img { width: 100%; }
.hero .finestra { transform: perspective(1600px) rotateY(-4deg) rotateX(1deg); transition: transform .4s; }
.hero .finestra:hover { transform: none; }

/* ---------- Fascia ---------- */
.fascia { background: var(--bg-2); border-block: 1px solid var(--bordo); }
.fascia-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding-block: 26px; }
.fascia-in div { display: flex; flex-direction: column; }
.fascia-in strong { font-size: 16px; }
.fascia-in span { color: var(--testo-3); font-size: 14px; }

/* ---------- Sezioni ---------- */
.sezione { padding: 96px 0; }
.sezione-scura { background: var(--bg-2); border-block: 1px solid var(--bordo); }
.sezione-testa { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sezione-testa h2, .download-box h2, .contatti-box h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; }
.sezione-sotto { color: var(--testo-2); font-size: 18px; margin-top: 16px; }

/* ---------- Funzioni ---------- */
.griglia-funzioni { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--pannello); border: 1px solid var(--bordo); border-radius: var(--raggio);
  padding: 26px; transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(249, 115, 22, .55); transform: translateY(-3px); }
.icona {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px;
  background: rgba(249, 115, 22, .13); color: var(--accento-2);
}
.icona svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: -.01em; }
.card p { color: var(--testo-2); font-size: 15.5px; }

/* ---------- Vetrina screenshot ---------- */
.vetrina { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; }
.vetrina + .vetrina { margin-top: 96px; }
.vetrina.inversa { grid-template-columns: 1.25fr 1fr; }
.vetrina.inversa .vetrina-testo { order: 2; }
.vetrina-testo h3 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; margin-bottom: 14px; }
.vetrina-testo p { color: var(--testo-2); }
.spunte { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.spunte li { position: relative; padding-left: 30px; color: var(--testo-2); font-size: 16px; }
.spunte li::before {
  content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 50%;
  background: rgba(249, 115, 22, .16)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='%23fb923c' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat;
}
.finestra-quadra { max-width: 520px; margin-inline: auto; width: 100%; }
.telefono-box { display: flex; justify-content: center; }
.telefono {
  width: min(300px, 70vw); border-radius: 38px; padding: 10px; background: #05050a;
  border: 2px solid #34344a; box-shadow: var(--ombra);
}
.telefono img { border-radius: 28px; width: 100%; }
.schede-doppie { position: relative; padding-bottom: 8px; }
.schede-doppie .finestra + .finestra { width: 64%; margin: -26% 0 0 auto; position: relative; border-color: rgba(249, 115, 22, .5); }

/* ---------- Come funziona ---------- */
.passi { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: p; }
.passi li { background: var(--pannello); border: 1px solid var(--bordo); border-radius: var(--raggio); padding: 28px; }
.num {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-weight: 800;
  color: #fff; background: linear-gradient(135deg, var(--accento-2), var(--accento-scuro)); margin-bottom: 16px;
}
.passi h3 { font-size: 20px; margin-bottom: 10px; letter-spacing: -.01em; }
.passi p { color: var(--testo-2); font-size: 15.5px; }

.offline {
  margin-top: 56px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center;
  background: linear-gradient(135deg, var(--pannello), #1a1420); border: 1px solid var(--bordo);
  border-radius: 22px; padding: 40px;
}
.offline-testo h3 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; margin-bottom: 14px; }
.offline-testo p:not(.sopratitolo) { color: var(--testo-2); }
.schema { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.nodo {
  background: var(--bg); border: 1px solid var(--bordo); border-radius: 12px; padding: 14px; text-align: center;
  font-weight: 600; font-size: 15px; display: flex; flex-direction: column; justify-content: center; min-height: 64px;
}
.nodo small { font-weight: 400; color: var(--testo-3); font-size: 12.5px; }
.nodo-server { grid-column: 1 / -1; border-color: var(--accento); background: rgba(249, 115, 22, .1); }
.nodo:nth-child(4) { grid-column: 1 / -1; }
.nodo-off { grid-column: 1 / -1; border-style: dashed; color: var(--testo-3); text-decoration: line-through; text-decoration-color: rgba(138, 138, 156, .6); }
.nodo-off small { text-decoration: none; display: block; }

/* ---------- Download ---------- */
.sezione-download { background: radial-gradient(700px 360px at 50% 0%, rgba(249, 115, 22, .14), transparent 70%), var(--bg-2); border-block: 1px solid var(--bordo); }
.download-box { max-width: 680px; margin: 0 auto; text-align: center; }
.download-logo { margin: 0 auto 20px; border-radius: 18px; box-shadow: 0 16px 40px -14px rgba(249, 115, 22, .6); }
.meta-download { color: var(--testo-3); font-size: 14px; margin-top: 16px; }
.avviso {
  margin-top: 32px; text-align: left; background: var(--pannello); border: 1px solid var(--bordo);
  border-left: 4px solid var(--accento); border-radius: 12px; padding: 18px 22px; font-size: 15px; color: var(--testo-2);
}
.avviso strong { color: var(--testo); display: block; margin-bottom: 4px; }
.avviso b { color: var(--testo); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; }
.faq details { background: var(--pannello); border: 1px solid var(--bordo); border-radius: 14px; transition: border-color .2s; }
.faq details[open] { border-color: rgba(249, 115, 22, .55); }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 56px 18px 22px; font-weight: 600; font-size: 17px; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 22px; top: 50%; width: 10px; height: 10px; margin-top: -8px;
  border-right: 2px solid var(--accento-2); border-bottom: 2px solid var(--accento-2); transform: rotate(45deg); transition: transform .2s;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { padding: 0 22px 20px; color: var(--testo-2); font-size: 16px; }
.faq details b { color: var(--testo); }

/* ---------- Contatti ---------- */
.contatti-box { max-width: 680px; margin: 0 auto; text-align: center; }

/* ---------- Footer ---------- */
.piede { border-top: 1px solid var(--bordo); padding: 32px 0; color: var(--testo-3); font-size: 14px; }
.piede-in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 28px; }
.piede .marchio { color: var(--testo); font-size: 16px; }

/* ---------- Animazioni di comparsa ---------- */
.rivela { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.rivela.visibile { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-in, .vetrina, .vetrina.inversa, .offline { grid-template-columns: 1fr; }
  .vetrina { gap: 28px; }
  .vetrina.inversa .vetrina-testo { order: 0; }
  .hero { padding-top: 36px; }
  .hero .finestra { transform: none; }
  .griglia-funzioni, .passi { grid-template-columns: 1fr 1fr; }
  .fascia-in { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 16.5px; }
  .burger { display: flex; margin-left: 4px; }
  .nav-in { gap: 10px; }
  .nav .btn-piccolo { margin-left: auto; }
  .nav-link {
    display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; margin: 0;
    background: var(--bg); border-bottom: 1px solid var(--bordo); padding: 8px 16px 16px;
  }
  .nav-link.aperto { display: flex; }
  .nav-link a { padding: 14px 12px; font-size: 17px; }
  .sezione { padding: 64px 0; }
  .sezione-testa { margin-bottom: 36px; }
  .griglia-funzioni, .passi { grid-template-columns: 1fr; }
  .vetrina + .vetrina { margin-top: 64px; }
  .offline { padding: 26px 20px; }
  .cta-riga .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rivela { opacity: 1; transform: none; transition: none; }
  .btn, .card { transition: none; }
}

/* Elenco "come funziona la prova" nella sezione download */
.prova { display: inline-block; text-align: left; margin: 22px auto 0; }
.prova li { color: var(--testo-2); }
.prova li strong { color: var(--testo); }
.prova a { color: var(--accento-2); font-weight: 600; }