/* PGX - sistema grafico condiviso (home, valutazione, verifica, pagine legali).
   Raggi: pulsanti a pillola; schede e riquadri 14px; campi 10px. Un solo accento (--acc). */
:root {
  --bg: #0b0d10;
  --bg-2: #101318;
  --panel: #14181e;
  --panel-2: #1a1f27;
  --line: #262c36;
  --line-2: #333b47;
  --text: #e8ebef;
  --text-2: #b5bcc7;
  --muted: #8a93a1;
  --acc: #5b8cff;
  --acc-ink: #0b1430;
  --acc-soft: rgba(91, 140, 255, .14);
  --ok: #4fc58a;
  --warn: #e0a33c;
  --ko: #f0756b;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, .65);
  --r-card: 14px;
  --r-field: 10px;
  --wrap: 1240px;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f3f4f6; --bg-2: #eceef2; --panel: #ffffff; --panel-2: #f6f7f9;
    --line: #dfe3e9; --line-2: #cbd1da; --text: #10141a; --text-2: #3a4350; --muted: #5d6675;
    --acc: #2f5fe0; --acc-ink: #ffffff; --acc-soft: rgba(47, 95, 224, .10);
    --ok: #1d8a55; --warn: #a86a08; --ko: #c2372d;
    --shadow: 0 30px 70px -34px rgba(24, 33, 48, .35);
    color-scheme: light;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 var(--font); font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--acc); color: var(--acc-ink); }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.hidden { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---- Tipografia ---- */
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.025em; line-height: 1.08; }
h1 { font-size: clamp(40px, 5.6vw, 72px); letter-spacing: -.04em; }
h2 { font-size: clamp(30px, 3.6vw, 46px); }
h3 { font-size: 21px; letter-spacing: -.015em; line-height: 1.25; }
p { margin: 0; }
.lead { font-size: 18px; color: var(--text-2); max-width: 58ch; }
.eyebrow { font: 500 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--acc); }

/* ---- Pulsanti ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; white-space: nowrap;
  font: 600 15px/1 var(--font); text-decoration: none; cursor: pointer;
  padding: 14px 22px; border-radius: 999px; border: 1px solid transparent;
  transition: transform .2s cubic-bezier(.16, 1, .3, 1), background .2s, border-color .2s;
}
.btn:active { transform: translateY(1px) scale(.985); }
.btn-primary { background: var(--acc); color: var(--acc-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--acc) 88%, white); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--text-2); }
.btn[disabled] { background: var(--panel-2); color: var(--muted); border-color: var(--line); cursor: not-allowed; }
.btn i { font-size: 18px; }

/* ---- Navigazione ---- */
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: -.02em; font-size: 20px; }
.brand-mark { width: 34px; height: 34px; color: var(--text); flex: none; }
.brand small { font: 500 12px/1 var(--mono); color: var(--muted); letter-spacing: .04em; margin-left: 2px; }
.nav-links { display: flex; gap: 24px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--text-2); font-size: 14.5px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav .btn { padding: 10px 18px; font-size: 14px; }
@media (max-width: 960px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } }

/* ---- Sezioni ---- */
section { padding: 112px 0; }
@media (max-width: 768px) { section { padding: 72px 0; } }
.sec-head { max-width: 760px; display: grid; gap: 16px; margin-bottom: 52px; }
.sec-head p { color: var(--text-2); font-size: 17px; max-width: 62ch; }

/* ---- Hero ---- */
.hero { padding: 72px 0 96px; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto auto; width: 70vw; height: 70vw; max-width: 980px; max-height: 980px;
  background: radial-gradient(closest-side, var(--acc-soft), transparent 70%); pointer-events: none; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; position: relative; }
.hero h1 { max-width: 14ch; }
.hero .lead { margin-top: 22px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.hero-visual { position: relative; margin: 0; aspect-ratio: 1 / 1; max-height: 640px; }
.hero-visual .doc { position: absolute; right: 2%; top: 0; height: 92%; width: auto; border-radius: 6px; box-shadow: var(--shadow);
  transform: rotate(2.2deg); border: 1px solid var(--line); filter: saturate(.9); }
.hero-visual .pgx-label { position: absolute; left: 0; bottom: 13%; width: min(400px, 72%); transform: rotate(-3deg); }
.hero-visual figcaption { position: absolute; left: 0; right: 0; bottom: -4px; font-size: 12.5px; color: var(--muted); }
@media (max-width: 960px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-visual { max-height: none; }
}

/* ---- Etichetta PGX (prototipo logico, con elemento ottico) ---- */
.pgx-label {
  --mx: 50%; --my: 50%;
  position: relative; border-radius: 12px; padding: 18px 20px 16px; color: #0d1117;
  background:
    radial-gradient(120% 140% at var(--mx) var(--my), rgba(255,255,255,.55), transparent 42%),
    conic-gradient(from 210deg at var(--mx) var(--my), #c9d6ff, #d8f3ff, #f2e3ff, #ffe9d6, #dcffe9, #c9d6ff);
  box-shadow: 0 1px 0 rgba(255,255,255,.7) inset, 0 24px 60px -20px rgba(0,0,0,.6);
  border: 1px solid rgba(255,255,255,.55);
  font-family: var(--mono);
}
.pgx-label .row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.pgx-label .id { font: 700 13px/1 var(--mono); letter-spacing: .08em; white-space: nowrap; }
.pgx-label .grade { text-align: right; }
.pgx-label .grade b { display: block; font: 700 44px/1 var(--font); letter-spacing: -.04em; }
.pgx-label .grade span { font-size: 10.5px; letter-spacing: .1em; }
.pgx-label .card { font: 600 14px/1.35 var(--font); margin-top: 12px; }
.pgx-label .meta { display: flex; justify-content: space-between; align-items: end; gap: 10px; margin-top: 12px; font-size: 11px; letter-spacing: .04em; }
.pgx-label .qr { width: 46px; height: 46px; border-radius: 6px; background: #0d1117; color: #fff; display: grid; place-items: center; font-size: 30px; }

/* ---- Livelli di prova ---- */
.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; align-items: end; }
.step { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-card); padding: 24px; display: grid; gap: 14px; align-content: start; }
.step:nth-child(1) { min-height: 300px; } .step:nth-child(2) { min-height: 340px; }
.step:nth-child(3) { min-height: 380px; } .step:nth-child(4) { min-height: 420px; border-color: var(--line-2); background: var(--panel-2); }
.step i.ico { font-size: 26px; color: var(--acc); }
.step .status { justify-self: start; align-self: end; }
.step dl { margin: 0; display: grid; gap: 10px; font-size: 14.5px; }
.step dt { font: 500 11.5px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.step dd { margin: 4px 0 0; color: var(--text-2); }
.rule { margin-top: 28px; padding: 18px 22px; border-left: 2px solid var(--acc); color: var(--text); font-size: 17px; max-width: 70ch; }
@media (max-width: 900px) { .ladder { grid-template-columns: 1fr 1fr; } .step { min-height: 0 !important; } }
@media (max-width: 560px) { .ladder { grid-template-columns: 1fr; } }

/* ---- Stato dei moduli ---- */
.status { display: inline-flex; align-items: center; gap: 7px; font: 500 12px/1 var(--mono); letter-spacing: .04em;
  padding: 6px 10px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--text-2); white-space: nowrap; }
.status i { font-size: 14px; }
.status.on { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.status.dev { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }

/* ---- Digital Twin ---- */
.twin { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.twin ul { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 16px; }
.twin li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--text-2); }
.twin li i { font-size: 22px; color: var(--acc); margin-top: 2px; }
.twin li b { color: var(--text); font-weight: 600; display: block; }
.code { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r-card); overflow: hidden; }
.code header { display: flex; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); font: 500 12px/1.3 var(--mono); color: var(--muted); }
.code pre { margin: 0; padding: 20px 18px; font: 13.5px/1.7 var(--mono); color: var(--text-2); overflow-x: auto; }
.code .k { color: var(--acc); } .code .s { color: var(--text); } .code .f { color: var(--ko); }
@media (max-width: 960px) { .twin { grid-template-columns: 1fr; gap: 40px; } }

/* ---- Bento moduli ---- */
.bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(210px, auto); gap: 14px; }
.tile { position: relative; overflow: hidden; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-card);
  padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.tile h3 { font-size: 19px; }
.tile p { color: var(--text-2); font-size: 14.5px; }
.tile .status { align-self: flex-start; }
.tile .foot { margin-top: auto; display: flex; justify-content: space-between; align-items: end; gap: 12px; }
.tile.ai { grid-column: span 2; grid-row: span 2; padding: 0; }
.tile.ai .media { flex: 1; min-height: 240px; background: url(/static/img/angolo.webp) center/cover no-repeat; }
.tile.ai .body { padding: 26px; display: grid; gap: 12px; border-top: 1px solid var(--line); justify-items: start; }
.tile.ai h3 { font-size: 26px; }
.tile.verify { grid-column: span 2; background: linear-gradient(140deg, var(--acc-soft), transparent 60%), var(--panel); }
.tile.label { background: radial-gradient(90% 80% at 100% 0%, rgba(201,214,255,.34), transparent 60%), radial-gradient(80% 70% at 0% 100%, rgba(255,226,200,.20), transparent 62%), radial-gradient(60% 60% at 70% 90%, rgba(214,255,232,.16), transparent 60%), var(--panel); }
.tile.chain .hash { font: 11.5px/1.5 var(--mono); color: var(--muted); word-break: break-all; opacity: .8; }
.tile a.more { font-weight: 600; font-size: 14.5px; text-decoration: none; display: inline-flex; gap: 6px; align-items: center; color: var(--acc); }
@media (max-width: 1024px) { .bento { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .bento { grid-template-columns: 1fr; } .tile.ai, .tile.verify { grid-column: auto; grid-row: auto; } }

/* ---- Campo di verifica ---- */
.vform { display: flex; gap: 8px; flex-wrap: wrap; }
.vform input { flex: 1 1 220px; min-width: 0; font: 500 16px/1 var(--mono); letter-spacing: .03em; text-transform: uppercase;
  padding: 14px 16px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--text); }
.vform input::placeholder { color: var(--muted); text-transform: none; letter-spacing: 0; font-family: var(--font); }

/* ---- Protocollo fotografico ---- */
.shots { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(150px, 1fr); gap: 12px; overflow-x: auto;
  scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-width: thin; }
@media (min-width: 1180px) { .shots { grid-auto-flow: row; grid-template-columns: repeat(8, 1fr); overflow: visible; } }
.shot { scroll-snap-align: start; border: 1px solid var(--line); border-radius: var(--r-card); padding: 18px; background: var(--panel); display: grid; gap: 10px; }
.shot i { font-size: 28px; color: var(--text-2); }
.shot b { font: 600 13px/1 var(--mono); color: var(--acc); }
.shot span { font-size: 14px; color: var(--text-2); line-height: 1.4; }
.shot .opt { font-size: 12px; color: var(--muted); }
.gate { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 64px; }
.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 32px; }
.checks div { display: grid; gap: 6px; }
.checks b { display: flex; gap: 10px; align-items: center; font-weight: 600; }
.checks b i { font-size: 20px; color: var(--acc); }
.checks p { color: var(--text-2); font-size: 14.5px; }
.formula { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r-card); padding: 26px; display: grid; gap: 16px; align-content: start; }
.formula .eq { font: 500 17px/1.6 var(--mono); color: var(--text); }
.formula p { color: var(--text-2); font-size: 14.5px; }
@media (max-width: 900px) { .gate { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .checks { grid-template-columns: 1fr; } }

/* ---- Laboratorio: stati della pratica ---- */
.lab { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; }
.lab .side { position: sticky; top: 100px; align-self: start; display: grid; gap: 18px; }
.lab .side p { color: var(--text-2); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font: 500 12.5px/1 var(--mono); padding: 8px 11px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--text-2); }
.flow { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.flow li { display: grid; grid-template-columns: 190px 1fr; gap: 20px; padding: 18px 0; border-top: 1px solid var(--line); }
.flow li:last-child { border-bottom: 1px solid var(--line); }
.flow code { font: 500 13px/1.4 var(--mono); color: var(--acc); }
.flow p { color: var(--text); font-size: 15px; }
.flow small { display: block; color: var(--muted); font-size: 13px; margin-top: 3px; }
@media (max-width: 900px) { .lab { grid-template-columns: 1fr; gap: 36px; } .lab .side { position: static; } }
@media (max-width: 560px) { .flow li { grid-template-columns: 1fr; gap: 6px; } }

/* ---- Verifica e catena ---- */
.band { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.band .wrap { display: grid; gap: 40px; }
.band .big { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.band .vform input { font-size: 18px; padding: 18px 20px; }
.band .vform .btn { padding: 18px 26px; }
.pipeline { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.pipeline span { font: 500 12.5px/1 var(--mono); padding: 10px 12px; border-radius: 10px; background: var(--panel); border: 1px solid var(--line); color: var(--text-2); }
.pipeline i { color: var(--muted); font-size: 14px; }
.note { color: var(--muted); font-size: 14px; max-width: 72ch; }
@media (max-width: 900px) { .band .big { grid-template-columns: 1fr; gap: 28px; } }

/* ---- Standard e trasparenza ---- */
.claims { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--r-card); overflow: hidden; }
.claims > div { padding: 34px; display: grid; gap: 18px; align-content: start; }
.claims > div + div { border-left: 1px solid var(--line); background: var(--panel); }
.claims ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.claims li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; color: var(--text-2); font-size: 15px; }
.claims li i { font-size: 18px; margin-top: 3px; }
.claims .yes i { color: var(--ok); } .claims .no i { color: var(--ko); }
@media (max-width: 860px) { .claims { grid-template-columns: 1fr; } .claims > div + div { border-left: 0; border-top: 1px solid var(--line); } }

/* ---- Roadmap ---- */
.road { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-card); overflow: hidden; }
.road div { background: var(--bg); padding: 22px; display: grid; gap: 8px; align-content: start; min-height: 170px; }
.road div.now { background: var(--panel-2); }
.road b { font-size: 16px; }
.road p { color: var(--text-2); font-size: 14px; }
.road em { font: normal 500 11.5px/1 var(--mono); color: var(--muted); letter-spacing: .04em; }
.road .now em { color: var(--acc); }
@media (max-width: 900px) { .road { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .road { grid-template-columns: 1fr; } }

/* ---- Domande ---- */
.faq { display: grid; grid-template-columns: .7fr 1.3fr; gap: 56px; }
.faq details { border-top: 1px solid var(--line); padding: 20px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; font-weight: 600; font-size: 17px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { transition: transform .25s; color: var(--muted); }
.faq details[open] summary i { transform: rotate(45deg); }
.faq details p { color: var(--text-2); margin-top: 12px; max-width: 66ch; }
@media (max-width: 860px) { .faq { grid-template-columns: 1fr; gap: 28px; } }

/* ---- Piè di pagina ---- */
footer.site { border-top: 1px solid var(--line); padding: 56px 0 40px; color: var(--muted); font-size: 13.5px; }
footer.site .wrap { display: grid; gap: 28px; }
footer.site .top { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: flex-end; align-content: start; }
footer.site nav a { text-decoration: none; color: var(--text-2); }
footer.site nav a:hover { color: var(--text); }
footer.site .legal { max-width: 96ch; line-height: 1.6; }
@media (max-width: 760px) { footer.site .top { grid-template-columns: 1fr; } footer.site nav { justify-content: flex-start; } }

/* ---- Pagine interne (valutazione, verifica, legali) ---- */
.page-head { padding: 64px 0 36px; }
.page-head h1 { font-size: clamp(34px, 4.4vw, 54px); max-width: 18ch; }
.page-head .lead { margin-top: 16px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r-card); padding: 28px; }
.panel + .panel { margin-top: 16px; }
.panel h2 { font-size: 22px; letter-spacing: -.015em; display: flex; gap: 12px; align-items: baseline; }
.panel h2 .n { font: 500 13px/1 var(--mono); color: var(--muted); }
.panel .sub { color: var(--text-2); font-size: 14.5px; margin: 8px 0 22px; max-width: 72ch; }
.field { display: grid; gap: 8px; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--text-2); }
.field input, .field select { font: inherit; padding: 12px 14px; border-radius: var(--r-field); border: 1px solid var(--line-2);
  background: var(--bg-2); color: var(--text); width: 100%; }
.field input::placeholder { color: var(--muted); }
.fields { display: grid; grid-template-columns: 2fr 2fr 1fr 1.1fr; gap: 16px; }
@media (max-width: 860px) { .fields { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .fields { grid-template-columns: 1fr; } }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--text-2); cursor: pointer; }
.check input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--acc); flex: none; }
.check a { color: var(--text); }
main.legal { max-width: 820px; margin: 0 auto; padding: 0 24px 80px; }
main.legal h2 { font-size: 22px; margin: 40px 0 10px; }
main.legal p, main.legal li { color: var(--text-2); }
main.legal ul { padding-left: 20px; }
main.legal p + p { margin-top: 12px; }
.bozza { border: 1px solid color-mix(in srgb, var(--warn) 50%, transparent); color: var(--text-2); border-radius: var(--r-card); padding: 14px 18px; font-size: 14.5px; margin: 8px 0 16px; }
.meta-line { color: var(--muted); font-size: 14px; }

/* ---- Comparsa allo scorrimento (solo con movimento consentito) ---- */
@media (prefers-reduced-motion: no-preference) {
  .hero .intro { animation: entra .9s cubic-bezier(.16, 1, .3, 1) both; }
  .hero-visual { animation: entra 1.1s .15s cubic-bezier(.16, 1, .3, 1) both; }
  @keyframes entra { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
  .rv { opacity: 0; transform: translateY(18px); transition: opacity .8s cubic-bezier(.16, 1, .3, 1), transform .8s cubic-bezier(.16, 1, .3, 1); transition-delay: calc(var(--i, 0) * 70ms); }
  .rv.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }