@charset "UTF-8";

/* ITA-OCR: foglio di stile del sito.

   Un solo carattere per tutta la pagina, fondo nero, nessun colore d'accento:
   come nell'applicazione, l'accento è l'inchiostro. Il carattere è ospitato
   qui e non su un CDN di terzi, perché la pagina privacy promette che il sito
   non chiama nessuno, e questo vale anche per i font. */

@font-face {
  font-family: "Inter var";
  src: url("assets/fonts/inter-latin-variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #000;
  --superficie: #0b0b0b;
  --superficie-alta: #131313;
  --linea: #242424;
  --linea-tenue: #181818;
  --testo: #fff;
  --tenue: #8c8c8c;
  --chiaro: #c4c4c4;
  --sans: "Inter var", Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --misura: 1120px;
  font-family: var(--sans);
  font-synthesis: none;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) { :root { scroll-behavior: auto; } }

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--testo);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

h1, h2, h3 { margin: 0; font-weight: 500; letter-spacing: -0.025em; }
h1 { font-size: clamp(42px, 6.2vw, 76px); line-height: 1.05; }
h2 { font-size: clamp(28px, 3.4vw, 44px); line-height: 1.15; }
h3 { font-size: 19px; line-height: 1.4; letter-spacing: -0.012em; }
p { margin: 0; }

.wrap { width: min(100% - 48px, var(--misura)); margin-inline: auto; }

.skip { position: absolute; left: -9999px; top: 0; z-index: 50; background: var(--testo); color: var(--bg); padding: 12px 20px; border-radius: 8px; }
.skip:focus { left: 16px; top: 16px; }

a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--testo); outline-offset: 4px; border-radius: 4px; }

/* ---------------------------------------------------------------- testata */

.header {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 32px;
  width: min(100% - 48px, var(--misura)); margin-inline: auto; padding: 18px 0;
  background: rgba(0, 0, 0, .74);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--linea-tenue);
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 500; letter-spacing: -0.01em; }
.brand img { width: 26px; height: 26px; border-radius: 7px; }
.header nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.header nav a { font-size: 14px; color: var(--tenue); transition: color .15s; }
.header nav a:hover { color: var(--testo); }
.header .lingua { border: 1px solid var(--linea); border-radius: 999px; padding: 4px 12px; font-size: 12px; letter-spacing: .06em; }

/* ---------------------------------------------------------------- bottoni */

.button {
  display: inline-flex; align-items: center; gap: 10px;
  height: 50px; padding: 0 26px; border-radius: 999px;
  background: var(--testo); color: var(--bg);
  font-size: 15px; font-weight: 500; white-space: nowrap;
  transition: opacity .15s, background .15s;
}
.button:hover { opacity: .84; }
.button.outline { background: transparent; color: var(--testo); border: 1px solid var(--linea); }
.button.outline:hover { background: var(--superficie-alta); opacity: 1; }
.button.small { height: 40px; padding: 0 18px; font-size: 14px; }

.text-link { display: inline-flex; align-items: center; gap: 9px; font-size: 15px; color: var(--chiaro); border-bottom: 1px solid var(--linea); padding-bottom: 3px; }
.text-link:hover { color: var(--testo); border-color: var(--tenue); }

/* ------------------------------------------------------------------- hero */

.hero { text-align: center; padding: clamp(70px, 10vw, 132px) 0 clamp(56px, 8vw, 104px); }
.hero .marchio { width: 104px; height: 104px; border-radius: 26px; margin: 0 auto 46px; }
.hero h1 { max-width: 16ch; margin-inline: auto; }
.intro { max-width: 58ch; margin: 30px auto 0; font-size: 19px; line-height: 1.72; color: var(--chiaro); }
.actions { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 18px; margin-top: 42px; }

/* --------------------------------------------------------- schermata app */

.showcase { margin: clamp(60px, 8vw, 104px) 0 0; }
.frame-top {
  display: flex; align-items: center; gap: 16px; padding: 12px 18px;
  border: 1px solid var(--linea); border-bottom: 0; border-radius: 14px 14px 0 0;
  background: var(--superficie); font-size: 13px; color: var(--tenue);
}
.frame-top > span:first-child { display: flex; gap: 7px; }
.frame-top i { width: 9px; height: 9px; border-radius: 50%; background: var(--linea); }
.frame-top > span:nth-child(2) { display: none; }
.theme-switch { display: flex; gap: 4px; margin-left: auto; }
.theme-switch button { border: 1px solid transparent; border-radius: 999px; background: none; color: var(--tenue); font-size: 12px; letter-spacing: 0; padding: 4px 13px; }
.theme-switch button[aria-pressed="true"] { border-color: var(--linea); color: var(--testo); }
.showcase img { width: 100%; border: 1px solid var(--linea); border-radius: 0 0 14px 14px; background: var(--superficie); }
figcaption { font-size: 13px; line-height: 1.6; margin-top: 18px; text-align: center; color: var(--tenue); }

/* --------------------------------------------------------------- sezioni */

.section { padding: clamp(78px, 10vw, 140px) 0; }
.section + .section { border-top: 1px solid var(--linea-tenue); }

/* La testata resta appiccicata in alto: senza questo margine, arrivando da
   un'ancora del menu il titolo della sezione finisce sotto la testata. */
[id] { scroll-margin-top: 92px; }

.section-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; margin-bottom: clamp(46px, 6vw, 74px); }
.section-heading > p { color: var(--tenue); max-width: 46ch; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(36px, 5vw, 70px); padding: clamp(66px, 8vw, 106px) 0; border-top: 1px solid var(--linea-tenue); }
.principles h2 { font-size: 23px; letter-spacing: -0.015em; margin: 0 0 14px; }
.principles p { color: var(--tenue); font-size: 15px; }

.steps { list-style: none; margin: 0 0 clamp(54px, 7vw, 84px); padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.steps li { border-top: 1px solid var(--linea); padding-top: 24px; }
.steps span { display: block; font-size: 14px; color: var(--tenue); margin-bottom: 12px; }
.steps h3 { margin-bottom: 10px; }
.steps p { color: var(--tenue); font-size: 15px; }

.schema { margin: 0; }
.schema img { width: 100%; border: 1px solid var(--linea-tenue); border-radius: 14px; background: var(--superficie); }

.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.features article { background: var(--superficie); border: 1px solid var(--linea-tenue); border-radius: 16px; padding: clamp(28px, 3vw, 40px); }
.features h3 { margin-bottom: 12px; }
.features p { color: var(--tenue); font-size: 15px; }
.feature-icon { display: block; font-size: 18px; color: var(--tenue); margin-bottom: 22px; }

.numeri { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 54px); }
.numeri > div { border-top: 1px solid var(--linea); padding-top: 26px; }
.cifra { display: block; font-size: clamp(34px, 4.4vw, 50px); font-weight: 400; letter-spacing: -0.03em; line-height: 1.05; margin-bottom: 18px; font-variant-numeric: tabular-nums; }
.numeri h3 { margin-bottom: 10px; }
.numeri p { color: var(--tenue); font-size: 14px; }
.postilla { font-size: 14px; line-height: 1.7; color: var(--tenue); max-width: 78ch; margin-top: 42px; }
.postilla a, .fine-print a, .nota a, .faq a { color: var(--chiaro); border-bottom: 1px solid var(--linea); }
.postilla a:hover, .fine-print a:hover, .nota a:hover, .faq a:hover { color: var(--testo); }

.privacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: clamp(42px, 5vw, 64px); }
.privacy-grid > div { background: var(--superficie); border: 1px solid var(--linea-tenue); border-radius: 16px; padding: clamp(28px, 3vw, 40px); }
.privacy-grid h3 { margin-bottom: 14px; }
.privacy-grid p { color: var(--tenue); font-size: 15px; }
.nota { background: var(--superficie-alta); }

.download-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.download-card { background: var(--superficie); border: 1px solid var(--linea-tenue); border-radius: 18px; padding: clamp(30px, 3.4vw, 44px); display: flex; flex-direction: column; }
.download-card.primary { background: var(--superficie-alta); border-color: var(--linea); }
.platform { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.platform svg { width: 20px; height: 20px; fill: var(--chiaro); }
.platform h3 { font-size: 22px; }
.version { font-size: 14px; color: var(--tenue); margin-left: auto; }
.download-card > h3 { font-size: 22px; margin-bottom: 16px; }
.download-card > p { color: var(--tenue); font-size: 15px; margin-bottom: 28px; }
.download-card .button { align-self: flex-start; }
/* I pesi non sono una piattaforma: stanno sotto le due, per intero. */
.download-card.larga { grid-column: 1 / -1; }
.download-links { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 26px; }
.download-links a { font-size: 14px; color: var(--chiaro); border-bottom: 1px solid var(--linea); padding-bottom: 2px; }
.download-links a:hover { color: var(--testo); }
.fine-print { font-size: 13px; line-height: 1.65; color: var(--tenue); margin-top: 26px; }
.system-note { font-size: 14px; color: var(--tenue); text-align: center; margin-top: 44px; }

.research { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(46px, 6vw, 88px); }
.research > div > p { color: var(--tenue); margin-top: 22px; }
.resource-links { margin-top: 36px; }
.resource-links a { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--linea-tenue); font-size: 15px; color: var(--chiaro); }
.resource-links a:hover { color: var(--testo); }
.resource-links span { color: var(--tenue); }
.stella { margin-top: 30px; font-size: 14px; line-height: 1.7; color: var(--tenue); }
.stella a { color: var(--chiaro); border-bottom: 1px solid var(--linea); }
.stella a:hover { color: var(--testo); }
.caveat { background: var(--superficie); border: 1px solid var(--linea-tenue); border-radius: 18px; padding: clamp(30px, 3.4vw, 44px); align-self: start; }
.caveat h3 { font-size: 21px; margin-bottom: 18px; }
.caveat p { color: var(--tenue); font-size: 15px; }
.caveat p + p { margin-top: 16px; }

.faq { padding-bottom: clamp(78px, 10vw, 140px); }
.faq h2 { margin-bottom: clamp(34px, 4vw, 54px); }
.faq details { border-bottom: 1px solid var(--linea-tenue); }
.faq summary { list-style: none; padding: 26px 0; font-size: 17px; display: flex; justify-content: space-between; gap: 24px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--tenue); font-size: 20px; line-height: 1.4; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--tenue); font-size: 15px; padding-bottom: 26px; max-width: 74ch; }

/* ------------------------------------------------------------------ piede */

.footer { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; padding: 44px 0 64px; border-top: 1px solid var(--linea-tenue); }
.footer p { color: var(--tenue); font-size: 14px; }
.footer nav { display: flex; flex-wrap: wrap; gap: 26px; margin-left: auto; }
.footer nav a { font-size: 14px; color: var(--tenue); }
.footer nav a:hover { color: var(--testo); }

/* --------------------------------------------------------------- adattivo */

@media (max-width: 900px) {
  .section-heading, .research, .privacy-grid, .download-grid, .principles, .numeri, .features { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .header nav { gap: 18px; }
  .header nav a:not(.lingua) { display: none; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .steps { grid-template-columns: 1fr; }
  .header .button { display: none; }
  .footer nav { margin-left: 0; }
}