/* V-AI · landing page · v1.0 (08/11/2026) */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f3;
  --ink: #303030;
  --ink-soft: #545b60;
  --line: #e2e2de;
  --accent: #ff7500;
  --accent-ink: #b84900;
  --logo-ink: #303030;
  --card: #ffffff;
  --ph-bg: #fff3c4;
  --ph-ink: #6b4e00;
  --radius: 14px;
  --max: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181a;
    --bg-alt: #1c2023;
    --ink: #eceeef;
    --ink-soft: #a9b0b5;
    --line: #2e3438;
    --accent: #ff7500;
    --accent-ink: #ff8a2b;
    /* kit arancione: su sfondo scuro la scritta e' bianca, il simbolo resta arancione */
    --logo-ink: #ffffff;
    --card: #1f2427;
    --ph-bg: #4a3a00;
    --ph-ink: #ffe28a;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent-ink); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
img, svg { display: block; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--bg); padding: 8px 12px; z-index: 10; }

/* header */
header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; }
.brand { display: flex; align-items: center; text-decoration: none; }
.brand svg { width: 150px; height: auto; }
.l-ink { fill: var(--logo-ink); }
nav.main { display: flex; align-items: center; gap: 22px; font-size: 15px; }
nav.main a { color: var(--ink-soft); text-decoration: none; }
nav.main a:hover { color: var(--ink); }
nav.main .lang { border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; color: var(--ink); font-weight: 600; }
@media (max-width: 760px) { nav.main a:not(.lang) { display: none; } }

/* sezioni */
section { padding: 88px 0; }
section.alt { background: var(--bg-alt); }
.eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 13px; font-weight: 700; color: var(--accent-ink); margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(36px, 6vw, 60px); font-weight: 800; }
h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; margin-bottom: 16px; }
h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.lead { font-size: clamp(18px, 2.2vw, 21px); color: var(--ink-soft); max-width: 680px; }
.intro { color: var(--ink-soft); max-width: 720px; margin: 0 0 40px; }
p { margin: 0 0 12px; }

/* hero */
.hero { padding: 96px 0 88px; position: relative; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { margin: 22px 0 32px; }
.hero-mark svg { width: 100%; max-width: 380px; margin-left: auto; }
.status { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink-soft); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; margin-bottom: 26px; }
.status::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; padding: 13px 22px; border-radius: 10px; font-weight: 700; text-decoration: none; font-size: 16px; }
.btn.primary { background: var(--accent); color: #1b1300; }
.btn.primary:hover { filter: brightness(1.06); }
.btn.ghost { border: 1px solid var(--line); color: var(--ink); }
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-mark { display: none; }
  section { padding: 64px 0; }
  .hero { padding: 64px 0; }
}

/* griglie di schede */
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) { .g4, .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .g4, .g3, .g2 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card p { color: var(--ink-soft); margin: 0; font-size: 16px; }
.num { font-size: 14px; font-weight: 800; color: var(--accent-ink); margin-bottom: 10px; display: block; }

/* schema dell'architettura */
.arch { display: grid; grid-template-columns: 1.3fr auto 1fr; gap: 18px; align-items: stretch; margin-bottom: 40px; }
.zone { border: 2px solid var(--ink); border-radius: var(--radius); padding: 22px; }
.zone.cloud { border-style: dashed; border-color: var(--ink-soft); }
.zone .tag { font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 14px; display: block; }
.zone ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.zone li { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; font-size: 15px; color: var(--ink-soft); }
.zone li b { color: var(--ink); display: block; font-size: 16px; }
.router { display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; gap: 8px; max-width: 190px; }
.router .pill { background: var(--accent); color: #1b1300; font-weight: 800; border-radius: 999px; padding: 8px 16px; }
.router small { color: var(--ink-soft); font-size: 13px; line-height: 1.4; }
.router .arrow { font-size: 26px; color: var(--accent-ink); line-height: 1; }
@media (max-width: 860px) {
  .arch { grid-template-columns: 1fr; }
  .router { max-width: none; flex-direction: row; flex-wrap: wrap; }
  .router .arrow { transform: rotate(90deg); }
}

/* norme */
.law { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 18px 0; border-top: 1px solid var(--line); }
.law:last-child { border-bottom: 1px solid var(--line); }
.law b { font-size: 18px; }
.law span { display: block; font-size: 13px; color: var(--ink-soft); }
.law p { margin: 0; color: var(--ink-soft); }
@media (max-width: 600px) { .law { grid-template-columns: 1fr; gap: 4px; } }

/* obiettivi */
.kpi { font-size: clamp(38px, 5vw, 52px); font-weight: 800; letter-spacing: -0.03em; color: var(--accent); line-height: 1; margin-bottom: 10px; }
.note { font-size: 14px; color: var(--ink-soft); margin-top: 22px; }

/* passi */
.steps { counter-reset: step; }
.steps .card { position: relative; padding-top: 56px; }
.steps .card::before { counter-increment: step; content: counter(step); position: absolute; top: 20px; left: 24px; width: 28px; height: 28px; border-radius: 50%; background: var(--ink); color: var(--bg); font-weight: 800; font-size: 15px; display: grid; place-items: center; }
.steps .dur { display: block; font-size: 14px; font-weight: 700; color: var(--accent-ink); margin-bottom: 8px; }

/* contatti */
.contact { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.contact dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 10px 20px; }
.contact dt { color: var(--ink-soft); font-size: 15px; }
.contact dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
@media (max-width: 760px) { .contact { grid-template-columns: 1fr; } }

/* segnaposto: dati della società non ancora disponibili */
.ph { font-style: italic; }

/* piede */
footer { border-top: 1px solid var(--line); padding: 40px 0 48px; font-size: 14px; color: var(--ink-soft); }
footer .row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; }
footer .legal { line-height: 1.9; }
footer h3 { font-size: 15px; color: var(--ink); margin: 28px 0 6px; }
footer p { max-width: 820px; }
footer a { color: var(--ink-soft); }

.mt { margin-top: 32px; }
.mt-s { margin-top: 24px; }