/* Sergio Lamanna — sito personale. Nessuna risorsa esterna (la CSP di Caddy
   consente solo 'self' e data:), font di sistema. */

:root {
  --sfondo: #06080d;
  --sfondo-2: #0b0f17;
  --superficie: rgba(255, 255, 255, .03);
  --bordo: rgba(255, 255, 255, .08);
  --bordo-forte: rgba(255, 255, 255, .16);
  --testo: #e9edf5;
  --tenue: #8e97ab;
  --tenue-2: #5d6578;
  --ciano: #5eead4;
  --blu: #60a5fa;
  --viola: #a78bfa;
  --rosso: #fb7185;
  --sfumatura: linear-gradient(100deg, var(--ciano) 0%, var(--blu) 45%, var(--viola) 100%);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --larghezza: 74rem;
  --raggio: 1.125rem;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-text-size-adjust: 100%; }
body {
  background: var(--sfondo);
  color: var(--testo);
  font: 400 1.0625rem/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; list-style: none; }
button, input, textarea { font: inherit; color: inherit; }
::selection { background: rgba(94, 234, 212, .3); }
[hidden] { display: none !important; }

.mono { font-family: var(--mono); }
.sfumato {
  background: var(--sfumatura);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.contenitore {
  width: 100%;
  max-width: var(--larghezza);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.salta {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--testo); color: var(--sfondo);
  padding: .5rem 1rem; border-radius: .5rem;
}
.salta:focus { top: 1rem; }
:focus-visible { outline: 2px solid var(--ciano); outline-offset: 3px; border-radius: .375rem; }

/* ---------- NAV ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: calc(env(safe-area-inset-top, 0px) + .875rem) clamp(1.25rem, 4vw, 2.5rem) .875rem;
  transition: background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrollata {
  background: rgba(6, 8, 13, .72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--bordo);
}
.logo { display: flex; align-items: center; gap: .75rem; font-weight: 600; letter-spacing: -.01em; }
.logo-segno {
  display: grid; place-items: center;
  width: 2.25rem; height: 2.25rem; border-radius: .625rem;
  font-size: .8125rem; font-weight: 700;
  background: var(--sfondo-2);
  position: relative;
}
.logo-segno::after, .ritratto-cornice::after {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none;
  background: var(--sfumatura);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.nav nav { display: flex; gap: 2rem; font-size: .9375rem; color: var(--tenue); }
.nav nav a { transition: color .2s; }
.nav nav a:hover { color: var(--testo); }

/* ---------- BOTTONI ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .625rem;
  min-height: 3rem; padding: .75rem 1.625rem;
  border: 0; border-radius: 999px; cursor: pointer;
  font-weight: 600; font-size: .9375rem;
  color: #04110f;
  background: var(--sfumatura);
  background-size: 160% 100%; background-position: 0 0;
  box-shadow: 0 10px 30px -10px rgba(96, 165, 250, .55);
  transition: background-position .5s, transform .2s, box-shadow .3s, opacity .2s;
}
.btn:hover { background-position: 100% 0; transform: translateY(-1px); box-shadow: 0 0 0 4px rgba(94, 234, 212, .12), 0 14px 34px -10px rgba(167, 139, 250, .6); }
.btn-vuoto { color: var(--testo); background: var(--superficie); border: 1px solid var(--bordo-forte); box-shadow: none; }
.btn-vuoto:hover { background: rgba(255, 255, 255, .07); box-shadow: none; }
.btn-piccolo { min-height: 2.5rem; padding: .5rem 1.125rem; font-size: .875rem; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  padding-block: 7.5rem 5rem;
  isolation: isolate;
  overflow-x: clip;
}
#rete { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero-velo {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(50rem 36rem at 78% 40%, rgba(96, 165, 250, .12), transparent 60%),
    radial-gradient(40rem 26rem at 5% 70%, rgba(94, 234, 212, .08), transparent 60%),
    linear-gradient(90deg, rgba(6, 8, 13, .9) 0%, rgba(6, 8, 13, .5) 60%, rgba(6, 8, 13, .3) 100%),
    linear-gradient(0deg, var(--sfondo) 0%, var(--sfondo) 4%, transparent 38%);
}
.hero-griglia { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.etichetta {
  display: inline-flex; align-items: center; gap: .625rem;
  padding: .375rem .875rem .375rem .75rem;
  border: 1px solid var(--bordo-forte); border-radius: 999px;
  background: rgba(255, 255, 255, .03);
  font: 500 .8125rem/1.4 var(--mono); color: var(--tenue);
}
.punto {
  display: inline-block; width: .5rem; height: .5rem; border-radius: 50%; flex: none;
  background: var(--ciano);
  animation: pulsa 2.4s infinite;
}
@keyframes pulsa { 0% { box-shadow: 0 0 0 0 rgba(94, 234, 212, .6); } 70%, 100% { box-shadow: 0 0 0 .5rem rgba(94, 234, 212, 0); } }

h1 {
  margin-top: 1.5rem;
  font-size: clamp(2.75rem, 6.4vw, 5.5rem);
  line-height: .98; letter-spacing: -.045em; font-weight: 700;
  text-wrap: balance;
}
.sottotitolo { margin-top: 1.5rem; max-width: 36rem; color: var(--tenue); font-size: clamp(1.0625rem, 1.6vw, 1.1875rem); }
.sottotitolo strong { color: var(--testo); font-weight: 600; }
.ruolo {
  margin-top: 1.5rem;
  display: flex; align-items: baseline; gap: .625rem; flex-wrap: wrap;
  font-size: clamp(1rem, 1.8vw, 1.125rem); font-weight: 500;
  min-height: 3.4em;
}
.prompt-hero { color: var(--ciano); font-size: .875em; }
.cursore {
  display: inline-block; width: .5em; height: 1.05em; margin-left: .125rem;
  background: var(--ciano); vertical-align: -.15em;
  animation: lampeggia 1.05s steps(1) infinite;
}
@keyframes lampeggia { 50% { opacity: 0; } }
.azioni { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: .875rem; }

/* ritratto */
.ritratto { position: relative; justify-self: center; width: min(100%, 24rem); }
.ritratto-anello {
  position: absolute; inset: -8%; z-index: -1; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--ciano), var(--blu), var(--viola), var(--ciano));
  filter: blur(48px); opacity: .35;
  animation: gira 14s linear infinite;
}
@keyframes gira { to { transform: rotate(360deg); } }
.ritratto-cornice {
  position: relative; aspect-ratio: 4 / 5; border-radius: 2rem; overflow: hidden;
  background:
    radial-gradient(circle at 30% 20%, rgba(94, 234, 212, .25), transparent 55%),
    radial-gradient(circle at 80% 90%, rgba(167, 139, 250, .3), transparent 55%),
    var(--sfondo-2);
  transform: perspective(900px) rotateY(var(--ry, 0deg)) rotateX(var(--rx, 0deg));
  transition: transform .4s cubic-bezier(.2, .7, .2, 1);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .8);
}
.ritratto-cornice img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; object-position: 45% 40%; }
.ritratto-cornice::before {
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(6, 8, 13, .55));
}
.ritratto-sostituto {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: clamp(5rem, 12vw, 8rem); font-weight: 700; letter-spacing: -.05em;
  background: var(--sfumatura); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.senza-foto .ritratto-cornice img { display: none; }
.fluttua {
  position: absolute; z-index: 3;
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .625rem .875rem; border-radius: .875rem;
  background: rgba(11, 15, 23, .78);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--bordo-forte);
  font-size: .8125rem; white-space: nowrap;
  box-shadow: 0 16px 30px -12px rgba(0, 0, 0, .7);
  animation: galleggia 6s ease-in-out infinite;
}
.fluttua b { background: var(--sfumatura); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 1.0625rem; }
.fluttua .mono { color: var(--viola); }
.f1 { top: 8%; left: -14%; }
.f2 { top: 46%; right: -12%; animation-delay: -2s; }
.f3 { bottom: 7%; left: -8%; animation-delay: -4s; }
@keyframes galleggia { 50% { transform: translateY(-.5rem); } }

.scorri {
  position: absolute; left: 50%; bottom: 1.75rem; transform: translateX(-50%);
  width: 1.5rem; height: 2.5rem; border: 1.5px solid var(--bordo-forte); border-radius: 1rem;
}
.scorri span {
  position: absolute; left: 50%; top: .5rem; width: 3px; height: .5rem; margin-left: -1.5px;
  border-radius: 2px; background: var(--ciano);
  animation: scendi 1.8s ease-in-out infinite;
}
@keyframes scendi { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(.9rem); } }

/* ---------- SEZIONI ---------- */
.sezione { padding-block: clamp(2.5rem, 5vw, 4rem); position: relative; }
.sezione-stretta { padding-top: 0; }
.testata { max-width: 46rem; margin-bottom: clamp(2rem, 4.5vw, 3rem); }
.sezione-n {
  display: flex; align-items: center; gap: .75rem;
  font: 500 .8125rem/1 var(--mono); text-transform: uppercase; letter-spacing: .14em; color: var(--tenue);
}
.sezione-n .mono { color: var(--ciano); }
.sezione-n::after { content: ""; height: 1px; width: 3rem; background: linear-gradient(90deg, var(--ciano), transparent); }
h2 {
  margin-top: 1.25rem;
  font-size: clamp(2.125rem, 5vw, 3.5rem);
  line-height: 1.05; letter-spacing: -.035em; font-weight: 700;
  text-wrap: balance;
}
h3 { font-size: 1.1875rem; line-height: 1.3; letter-spacing: -.01em; font-weight: 600; }
.intro { margin-top: 1.5rem; color: var(--tenue); font-size: clamp(1.0625rem, 1.7vw, 1.1875rem); max-width: 40rem; }

/* ---------- STORIA ---------- */
.storia { display: grid; grid-template-columns: 1.4fr .9fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }
.racconto { margin-top: 2rem; display: grid; gap: 1.25rem; max-width: 40rem; }
.racconto p { color: var(--tenue); font-size: 1.125rem; line-height: 1.75; }
.racconto p:first-child::first-letter {
  float: left; font-size: 3.5rem; line-height: .9; font-weight: 700; margin: .3rem .625rem 0 0;
  background: var(--sfumatura); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.scheda {
  position: sticky; top: 6rem;
  border-radius: var(--raggio); border: 1px solid var(--bordo);
  background: #080b12; padding: 1.5rem;
  font-size: .9375rem;
}
.scheda-titolo { color: var(--tenue-2); font-size: .75rem; padding-bottom: 1rem; margin-bottom: 1rem; border-bottom: 1px solid var(--bordo); }
.scheda dl { display: grid; gap: .875rem; }
.scheda dt { font: .75rem var(--mono); color: var(--viola); }
.scheda dd { margin: .125rem 0 0; }
.verde { display: flex; align-items: center; gap: .5rem; color: var(--ciano); }

.citazione { margin-top: clamp(2.5rem, 6vw, 4rem); text-align: center; }
.citazione blockquote {
  max-width: 52rem; margin-inline: auto;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem); line-height: 1.25; letter-spacing: -.025em; font-weight: 500;
  text-wrap: balance;
  background: linear-gradient(180deg, var(--testo) 30%, var(--tenue));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- PRINCIPI ---------- */
.principi { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--bordo); }
.principio { padding: 2rem 1.5rem 0 0; position: relative; }
.principio + .principio { padding-left: 1.5rem; border-left: 1px solid var(--bordo); }
.principio-n { font-size: .8125rem; color: var(--ciano); }
.principio h3 { margin-top: 1rem; }
.principio p { margin-top: .75rem; color: var(--tenue); font-size: .96875rem; }
.principio::before {
  content: ""; position: absolute; top: -1px; left: 0; height: 1px; width: 0;
  background: var(--sfumatura); transition: width .6s cubic-bezier(.2, .7, .2, 1);
}
.principio:hover::before { width: 100%; }

/* ---------- CARTE ---------- */
.carta {
  --mx: 50%; --my: 50%;
  position: relative;
  padding: 1.75rem;
  border-radius: var(--raggio);
  background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .015));
  border: 1px solid var(--bordo);
  overflow: hidden;
  transition: border-color .3s, transform .3s;
}
.carta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(22rem circle at var(--mx) var(--my), rgba(94, 234, 212, .10), transparent 45%);
  transition: opacity .3s;
}
.carta:hover { border-color: var(--bordo-forte); transform: translateY(-3px); }
.carta:hover::before { opacity: 1; }
.carta p { color: var(--tenue); font-size: .96875rem; margin-top: .75rem; }
.carta h3 { margin-top: 1.25rem; }

.griglia-ai { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.icona {
  width: 2.75rem; height: 2.75rem; border-radius: .75rem;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(94, 234, 212, .14), rgba(167, 139, 250, .14));
  border: 1px solid var(--bordo-forte);
}
.icona svg { width: 1.375rem; height: 1.375rem; fill: none; stroke: var(--ciano); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.nastro {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  overflow: hidden;
  border-block: 1px solid var(--bordo);
  padding-block: 1.25rem;
  -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.nastro-traccia { display: flex; width: max-content; animation: scorre 40s linear infinite; }
.nastro-traccia span {
  font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 700; letter-spacing: -.03em;
  padding-inline: 1.5rem; color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, .22);
}
.nastro-traccia span::after { content: "✦"; -webkit-text-stroke: 0; color: var(--viola); font-size: .5em; margin-left: 3rem; vertical-align: middle; }
@keyframes scorre { to { transform: translateX(-50%); } }

/* ---------- PERCORSO ---------- */
.viaggio { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
.viaggio::before {
  content: ""; position: absolute; left: 7.5rem; top: 1rem; bottom: 1rem; width: 1px;
  background: linear-gradient(180deg, var(--bordo), var(--ciano) 20%, var(--blu) 60%, var(--viola));
  opacity: .6;
}
.tappa { position: relative; display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); }
.tappa::before {
  content: ""; position: absolute; left: 7.5rem; top: 1.85rem; z-index: 1;
  width: .875rem; height: .875rem; margin-left: -.4375rem; border-radius: 50%;
  background: var(--sfondo); border: 2px solid var(--ciano);
  box-shadow: 0 0 0 5px var(--sfondo), 0 0 16px rgba(94, 234, 212, .6);
}
.tappa-oggi::before { background: var(--viola); border-color: var(--viola); animation: pulsa-v 2.4s infinite; }
@keyframes pulsa-v { 0% { box-shadow: 0 0 0 5px var(--sfondo), 0 0 0 5px rgba(167, 139, 250, .5); } 70%, 100% { box-shadow: 0 0 0 5px var(--sfondo), 0 0 0 16px rgba(167, 139, 250, 0); } }
.tappa-anni { padding-top: 1.5rem; font-size: 1.375rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.1; }
.tappa-anni span { display: block; font-size: .8125rem; font-weight: 400; color: var(--tenue); margin-top: .375rem; letter-spacing: 0; }
.tappa-anni span::before { content: "→ "; color: var(--ciano); }
.tappa-corpo {
  margin-left: 2.5rem;
  padding: clamp(1.5rem, 3.5vw, 2.25rem);
  border-radius: 1.375rem; border: 1px solid var(--bordo);
  background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .012));
}
.tappa-oggi .tappa-corpo { border-color: rgba(167, 139, 250, .3); background: radial-gradient(40rem 20rem at 100% 0%, rgba(167, 139, 250, .08), transparent 70%), linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .012)); }
.tappa-ruolo { font: 500 .8125rem var(--mono); color: var(--ciano); }
.tappa-corpo h3 { margin-top: .375rem; font-size: clamp(1.625rem, 3.2vw, 2.25rem); letter-spacing: -.03em; }
.tappa-intro { margin-top: .75rem; color: var(--tenue); max-width: 46rem; }
.tappa-dettagli { margin-top: 1.75rem; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 1.25rem; }
.blocco { padding: 1.25rem; border-radius: 1rem; background: rgba(6, 8, 13, .55); border: 1px solid var(--bordo); }
.blocco > p:not(.blocco-titolo) { margin-top: .75rem; color: var(--tenue); font-size: .96875rem; }
.blocco-titolo { font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; color: var(--viola); }
.blocco:first-child .blocco-titolo { color: var(--rosso); }
.codice {
  margin-top: .875rem; padding: .875rem 1rem; border-radius: .625rem;
  background: #05070b; border: 1px solid var(--bordo);
  font: .8125rem/1.7 var(--mono); color: var(--testo);
  overflow-x: auto; white-space: pre;
}
.codice .cm { color: var(--tenue-2); font-style: italic; }
.codice .kw { color: var(--viola); }
.codice .fn { color: var(--blu); }
.codice .st { color: var(--ciano); }
.vivere { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px dashed var(--bordo-forte); font-size: 1.0625rem; color: var(--testo); }
.vivere .mono { display: block; font-size: .75rem; color: var(--ciano); margin-bottom: .25rem; letter-spacing: .04em; }

.salto { position: relative; margin-left: 10rem; padding: 1.5rem 0 1.5rem 1.75rem; border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, var(--ciano), var(--viola)) 1; }
.salto-anno { font-size: .75rem; text-transform: uppercase; letter-spacing: .14em; color: var(--ciano); }
.salto-testo { margin-top: .5rem; max-width: 44rem; font-size: clamp(1.1875rem, 2.4vw, 1.5rem); line-height: 1.4; letter-spacing: -.02em; color: var(--tenue); text-wrap: balance; }
.salto-testo strong { color: var(--testo); font-weight: 600; }
.salto-prossimo .salto-anno { color: var(--viola); }
.salto-prossimo .salto-anno::after { content: "_"; animation: lampeggia 1.05s steps(1) infinite; }
.linkedin { margin-top: 3rem; color: var(--tenue); }
.linkedin a { color: var(--testo); border-bottom: 1px solid var(--ciano); }

/* ---------- CONTATTI ---------- */
.contatti { overflow: clip; }
.contatti::before {
  content: ""; position: absolute; right: -20%; top: 10%; z-index: -1;
  width: min(60rem, 140vw); aspect-ratio: 1;
  background: radial-gradient(circle, rgba(96, 165, 250, .11), transparent 60%);
}
.contatti-griglia { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: start; }
.argomenti { margin-top: 2rem; display: grid; gap: .75rem; }
.argomenti li { display: flex; align-items: center; gap: .75rem; color: var(--tenue); }
.argomenti li::before { content: "→"; font-family: var(--mono); color: var(--ciano); }

.modulo {
  position: relative;
  padding: clamp(1.5rem, 3.5vw, 2.25rem);
  border-radius: 1.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .02));
  border: 1px solid var(--bordo-forte);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .8);
}
.motivi { border: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.motivi legend { font-size: .9375rem; color: var(--tenue); margin-bottom: .875rem; padding: 0; }
.motivi label { cursor: pointer; }
.motivi input { position: absolute; opacity: 0; pointer-events: none; }
.motivi span {
  display: inline-block; padding: .5rem .9375rem; border-radius: 999px;
  border: 1px solid var(--bordo-forte); font-size: .875rem; color: var(--tenue);
  transition: color .2s, border-color .2s, background .2s;
}
.motivi label:hover span { color: var(--testo); }
.motivi input:checked + span { color: #04110f; background: var(--sfumatura); border-color: transparent; font-weight: 600; }
.motivi input:focus-visible + span { outline: 2px solid var(--ciano); outline-offset: 2px; }

.campi { margin-top: 1.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.campo { position: relative; }
.campo-largo { grid-column: 1 / -1; }
.campo input, .campo textarea {
  width: 100%; display: block;
  padding: 1.5rem 1rem .5rem;
  border-radius: .875rem;
  border: 1px solid var(--bordo-forte);
  background: rgba(6, 8, 13, .6);
  font-size: 1rem;
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}
.campo textarea { min-height: 9rem; padding-bottom: 1.75rem; }
.campo label {
  position: absolute; left: 1rem; top: 1rem; pointer-events: none;
  color: var(--tenue); font-size: 1rem;
  transform-origin: left top;
  transition: transform .2s, color .2s;
}
.campo label small { color: var(--tenue-2); font-size: .8em; }
.campo input:focus, .campo textarea:focus { outline: none; border-color: var(--ciano); box-shadow: 0 0 0 4px rgba(94, 234, 212, .12); }
.campo input:focus + label, .campo textarea:focus + label,
.campo input:not(:placeholder-shown) + label, .campo textarea:not(:placeholder-shown) + label {
  transform: translateY(-.6rem) scale(.78); color: var(--ciano);
}
.campo.errato input, .campo.errato textarea { border-color: var(--rosso); }
.campo.errato label { color: var(--rosso); }
.contatore { position: absolute; right: .875rem; bottom: .625rem; font-size: .6875rem; color: var(--tenue-2); }

.trappola { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.consenso { margin-top: 1.25rem; display: flex; gap: .75rem; align-items: flex-start; font-size: .875rem; color: var(--tenue); cursor: pointer; }
.consenso input { margin-top: .2rem; width: 1.125rem; height: 1.125rem; accent-color: var(--ciano); flex: none; }
.consenso a { color: var(--testo); border-bottom: 1px solid var(--bordo-forte); }
.consenso.errato span { color: var(--rosso); }

.invio { margin-top: 1.5rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.rotella { display: none; width: 1rem; height: 1rem; border-radius: 50%; border: 2px solid rgba(4, 17, 15, .3); border-top-color: #04110f; animation: gira .8s linear infinite; }
.modulo.invio-in-corso .rotella { display: inline-block; }
.modulo.invio-in-corso .btn { opacity: .8; pointer-events: none; }
.esito { font-size: .9375rem; color: var(--rosso); }

.grazie {
  position: absolute; inset: 0; z-index: 2; border-radius: inherit;
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  padding: 2rem; gap: .75rem;
  background: radial-gradient(30rem 20rem at 50% 30%, rgba(94, 234, 212, .08), transparent 70%), #0a0d15;
  animation: appare .5s ease both;
}
.grazie h3 { font-size: 1.625rem; letter-spacing: -.02em; }
.grazie p { color: var(--tenue); }
.spunta svg { width: 4.5rem; height: 4.5rem; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.spunta circle { stroke: var(--ciano); stroke-dasharray: 151; stroke-dashoffset: 151; animation: traccia .7s ease forwards; }
.spunta path { stroke: var(--ciano); stroke-dasharray: 40; stroke-dashoffset: 40; animation: traccia .4s .55s ease forwards; }
@keyframes traccia { to { stroke-dashoffset: 0; } }
@keyframes appare { from { opacity: 0; } }

/* ---------- FOOTER ---------- */
.piede {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  padding-block: 2rem calc(2rem + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--bordo);
  color: var(--tenue-2); font-size: .8125rem;
}
.piede-link { display: flex; gap: 1.5rem; }
.piede-link a:hover { color: var(--testo); }

/* ---------- PAGINA PRIVACY ---------- */
.documento { max-width: 46rem; padding-block: 4rem 6rem; }
.documento h1 { font-size: clamp(2.25rem, 6vw, 3.25rem); margin-top: 2.5rem; }
.documento h2 { font-size: 1.25rem; letter-spacing: -.01em; margin-top: 2.5rem; }
.documento p { color: var(--tenue); margin-top: .75rem; }
.indietro { color: var(--ciano); font-size: .875rem; }
.aggiornata { font-size: .8125rem; color: var(--tenue-2) !important; }

/* ---------- RIVELAZIONE ---------- */
.js .rivela { opacity: 0; transform: translateY(1.5rem); transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1); }
.js .rivela.visibile { opacity: 1; transform: none; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1080px) {
  .griglia-ai { grid-template-columns: repeat(2, 1fr); }
  .principi { grid-template-columns: repeat(2, 1fr); }
  .principio:nth-child(3) { padding-left: 0; border-left: 0; }
  .principio { padding-bottom: 2rem; }
}
@media (max-width: 960px) {
  .nav nav { display: none; }
  .hero-griglia, .storia, .contatti-griglia { grid-template-columns: 1fr; }
  .hero { padding-top: 6.5rem; }
  .ritratto { width: min(80%, 20rem); margin-top: 1rem; }
  .scheda { position: static; }
  .scorri { display: none; }
}
@media (max-width: 720px) {
  .griglia-ai, .principi, .campi { grid-template-columns: 1fr; }
  .principio, .principio + .principio { padding: 1.75rem 0; border-left: 0; }
  .principio + .principio { border-top: 1px solid var(--bordo); }
  .viaggio::before, .tappa::before { left: .4375rem; }
  .tappa { grid-template-columns: minmax(0, 1fr); padding-left: 2rem; }
  .tappa::before { top: .3rem; }
  .tappa-anni { padding-top: 0; margin-bottom: 1rem; display: flex; align-items: baseline; gap: .75rem; }
  .tappa-anni span { margin-top: 0; }
  .tappa-corpo { margin-left: 0; }
  .tappa-dettagli { grid-template-columns: minmax(0, 1fr); }
  .salto { margin-left: 2rem; padding-left: 1.25rem; }
  .logo-nome { display: none; }
  .f1 { left: -10%; } .f2 { right: -10%; } .f3 { left: -6%; }
}
@media (max-width: 480px) {
  .btn { width: 100%; }
  .btn-piccolo { width: auto; }
  .carta, .tappa-corpo { padding: 1.25rem; }
  .blocco { padding: 1rem; }
  .fluttua { font-size: .75rem; padding: .5rem .75rem; }
  .f1 { left: -6%; } .f2 { right: -6%; } .f3 { left: -4%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .rivela { opacity: 1; transform: none; }
  .spunta circle, .spunta path { stroke-dashoffset: 0; }
}

/* ---------- SQUADRA ---------- */
.squadra { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.orbita { position: relative; width: min(100%, 28rem); aspect-ratio: 1; justify-self: center; }
.orbita-linee { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.anello-orbita { fill: none; stroke: var(--bordo-forte); stroke-dasharray: 3 7; animation: gira 60s linear infinite; transform-origin: 200px 200px; }
.anello-orbita.interno { stroke: rgba(94, 234, 212, .18); animation-direction: reverse; animation-duration: 40s; }
.raggi line { stroke: url(#gl); stroke-width: 1; opacity: .35; stroke-dasharray: 4 6; animation: flusso 2.5s linear infinite; }
@keyframes flusso { to { stroke-dashoffset: -20; } }
.esagono { fill: rgba(96, 165, 250, .04); stroke: url(#gl); stroke-width: 1.2; opacity: .7; }
.nucleo {
  position: absolute; left: 50%; top: 50%; width: 24%; aspect-ratio: 1; transform: translate(-50%, -50%);
  border-radius: 50%; display: grid; place-items: center;
  background: radial-gradient(circle at 35% 30%, rgba(94, 234, 212, .35), rgba(167, 139, 250, .25) 60%, rgba(6, 8, 13, .9));
  border: 1px solid var(--bordo-forte);
  box-shadow: 0 0 60px rgba(96, 165, 250, .35);
  animation: respira 4s ease-in-out infinite;
}
.nucleo span { font: 600 1.0625rem var(--mono); letter-spacing: .04em; }
@keyframes respira { 50% { box-shadow: 0 0 90px rgba(167, 139, 250, .5); } }
.nodo {
  position: absolute; transform: translate(-50%, -50%);
  padding: .5rem .875rem; border-radius: 999px; white-space: nowrap;
  font: 600 .8125rem var(--mono);
  background: rgba(11, 15, 23, .92); border: 1px solid var(--bordo-forte);
  box-shadow: 0 0 0 4px var(--sfondo), 0 10px 24px -10px rgba(0, 0, 0, .8);
  transition: border-color .3s, color .3s, box-shadow .3s;
}
.nodo.acceso { border-color: var(--ciano); color: var(--ciano); box-shadow: 0 0 0 4px var(--sfondo), 0 0 24px rgba(94, 234, 212, .45); }
.n1 { left: 50%; top: 12.5%; } .n2 { left: 82.5%; top: 31.25%; } .n3 { left: 82.5%; top: 68.75%; }
.n4 { left: 50%; top: 87.5%; } .n5 { left: 17.5%; top: 68.75%; } .n6 { left: 17.5%; top: 31.25%; }

.ruoli { display: grid; grid-template-columns: 1fr 1fr; gap: .875rem; }
.ruolo-carta {
  display: flex; gap: .875rem; align-items: flex-start;
  padding: 1.125rem; border-radius: .875rem;
  border: 1px solid var(--bordo); background: var(--superficie);
  transition: border-color .3s, background .3s;
}
.ruolo-carta:hover, .ruolo-carta.acceso { border-color: rgba(94, 234, 212, .45); background: rgba(94, 234, 212, .05); }
.ruolo-carta > .mono { flex: none; min-width: 3.25rem; font-size: .6875rem; color: var(--viola); padding-top: .25rem; text-transform: uppercase; letter-spacing: .06em; }
.ruolo-carta h3 { font-size: 1rem; }
.ruolo-carta p { margin-top: .25rem; color: var(--tenue); font-size: .875rem; line-height: 1.5; }
.squadra-chiusa { margin-top: clamp(2rem, 5vw, 3rem); padding-top: 2rem; border-top: 1px solid var(--bordo); }
.squadra-chiusa p { max-width: 52rem; font-size: clamp(1.25rem, 2.6vw, 1.75rem); line-height: 1.4; letter-spacing: -.02em; color: var(--tenue); text-wrap: balance; }
.squadra-chiusa strong { color: var(--testo); font-weight: 600; }

@media (max-width: 960px) {
  .squadra { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .ruoli { grid-template-columns: 1fr; }
  .nodo { font-size: .6875rem; padding: .375rem .625rem; }
}
.telegram {
  margin-top: 1.25rem; display: inline-flex; align-items: center; gap: .625rem;
  padding: .5rem .875rem; border-radius: 999px;
  border: 1px solid rgba(96, 165, 250, .35); background: rgba(96, 165, 250, .08);
  font-size: .875rem; color: var(--testo);
}
.telegram svg { width: 1.125rem; height: 1.125rem; fill: none; stroke: var(--blu); stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; }

/* ---------- AI: pila delle fondamenta ---------- */
.sezione-ai::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(50rem 30rem at 15% 55%, rgba(94, 234, 212, .07), transparent 65%),
    radial-gradient(40rem 30rem at 90% 20%, rgba(167, 139, 250, .07), transparent 65%);
}
.ai-griglia { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }

.pila { position: relative; display: flex; flex-direction: column; align-items: center; gap: .75rem; padding-block: 1rem; }
.strato {
  position: relative; z-index: 1;
  display: flex; align-items: center; gap: .875rem;
  width: var(--l, 100%); min-height: 3.75rem; padding: .75rem 1.25rem;
  border-radius: .875rem;
  border: 1px solid var(--bordo-forte);
  background: linear-gradient(90deg, rgba(11, 15, 23, .95), rgba(16, 21, 32, .95));
  box-shadow: 0 12px 28px -16px rgba(0, 0, 0, .9);
  transition: border-color .35s, box-shadow .35s, transform .35s;
}
.strato[data-strato="0"] { --l: 100%; }
.strato[data-strato="1"] { --l: 92%; }
.strato[data-strato="2"] { --l: 84%; }
.strato[data-strato="3"] { --l: 76%; }
.strato-n { font-size: .6875rem; color: var(--tenue-2); }
.strato-nome { font-weight: 600; letter-spacing: -.01em; }
.strato-dettaglio { margin-left: auto; font-size: .75rem; color: var(--tenue); text-align: right; }
.strato.acceso {
  border-color: rgba(94, 234, 212, .6); transform: scale(1.02);
  box-shadow: 0 0 0 1px rgba(94, 234, 212, .25), 0 0 32px -6px rgba(94, 234, 212, .45);
}
.strato.acceso .strato-n { color: var(--ciano); }

.strato-ai {
  width: 68%; min-height: 5rem; justify-content: center; flex-direction: column; gap: .25rem;
  border: 0; text-align: center;
  background: linear-gradient(120deg, rgba(94, 234, 212, .22), rgba(96, 165, 250, .22), rgba(167, 139, 250, .28)), #0b0f17;
  box-shadow: 0 0 0 1px rgba(167, 139, 250, .45), 0 0 50px -8px rgba(96, 165, 250, .55);
  animation: brilla 4s ease-in-out infinite;
  margin-bottom: .5rem;
}
.strato-ai .strato-nome {
  font-size: 1.75rem; font-weight: 700; letter-spacing: -.03em;
  background: var(--sfumatura); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.strato-ai .strato-dettaglio { margin: 0; text-align: center; color: var(--testo); opacity: .8; }
@keyframes brilla { 50% { box-shadow: 0 0 0 1px rgba(94, 234, 212, .55), 0 0 70px -6px rgba(167, 139, 250, .7); } }
.pila-base { margin-top: .25rem; font-size: .6875rem; letter-spacing: .2em; text-transform: uppercase; color: var(--tenue-2); }

/* il "bus" verticale: impulsi che salgono dalle fondamenta all'AI */
.bus { position: absolute; left: 50%; top: 2.5rem; bottom: 2rem; width: 2px; margin-left: -1px; z-index: 0;
  background: linear-gradient(0deg, rgba(94, 234, 212, .15), rgba(167, 139, 250, .5)); }
.bus i {
  position: absolute; left: 50%; bottom: 0; width: 6px; height: 6px; margin-left: -3px; border-radius: 50%;
  background: #fff; box-shadow: 0 0 10px 3px rgba(94, 234, 212, .8);
  animation: sale 3.2s linear infinite; opacity: 0;
}
.bus i:nth-child(2) { animation-delay: -.8s; } .bus i:nth-child(3) { animation-delay: -1.6s; } .bus i:nth-child(4) { animation-delay: -2.4s; }
@keyframes sale { 0% { bottom: 0; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { bottom: 100%; opacity: 0; } }

.pilastri { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.pilastro { padding: 1.5rem; }
.pilastro-testa { display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.pilastro-testa .mono { font-size: .6875rem; color: var(--tenue-2); text-transform: uppercase; letter-spacing: .08em; }
.pilastro h3 { margin-top: 1rem; }
.pilastro p { font-size: .9375rem; }
.pilastro.acceso { border-color: rgba(94, 234, 212, .45); }
.pilastro.acceso .pilastro-testa .mono { color: var(--ciano); }

.ai-frase {
  margin-top: clamp(2.25rem, 5vw, 3.5rem); text-align: center;
  font-size: clamp(1.5rem, 3.6vw, 2.5rem); line-height: 1.2; letter-spacing: -.03em; font-weight: 600;
  text-wrap: balance;
}
.ai-frase .sfumato { display: inline-block; }

.terminale { margin-top: clamp(2.5rem, 6vw, 3.5rem); border-radius: var(--raggio); border: 1px solid var(--bordo); background: #080b12; overflow: hidden; }
.terminale-barra { display: flex; align-items: center; gap: .5rem; padding: .75rem 1rem; border-bottom: 1px solid var(--bordo); background: rgba(255, 255, 255, .02); }
.terminale-barra i { width: .625rem; height: .625rem; border-radius: 50%; background: var(--bordo-forte); }
.terminale-barra span { margin-left: .5rem; font: .75rem var(--mono); color: var(--tenue-2); }
.terminale-corpo { padding: 1.25rem 1.5rem; display: grid; grid-template-columns: repeat(2, 1fr); gap: .875rem 2rem; }
.terminale-corpo li { display: flex; gap: .875rem; color: var(--tenue); font-size: .96875rem; }
.terminale-corpo b { color: var(--testo); font-weight: 600; }
.prompt { color: var(--viola); font-size: .8125rem; padding-top: .2rem; flex: none; }

@media (max-width: 960px) {
  .ai-griglia { grid-template-columns: 1fr; }
  .pila { max-width: 32rem; width: 100%; margin-inline: auto; }
}
@media (max-width: 600px) {
  .pilastri, .terminale-corpo { grid-template-columns: 1fr; }
  .strato { padding: .625rem .875rem; gap: .625rem; }
  .strato-dettaglio { font-size: .6875rem; }
}

/* ---------- nome nel titolo (SEO) ---------- */
.h1-nome {
  display: block; margin-bottom: 1rem;
  font: 600 clamp(1rem, 1.6vw, 1.1875rem)/1.2 var(--sans); letter-spacing: .02em;
  color: var(--tenue);
}

/* percorso dal più recente: la linea parte viola in alto */
.viaggio::before { background: linear-gradient(180deg, var(--viola), var(--blu) 40%, var(--ciano) 80%, var(--bordo)); }

/* ---------- MULTIAGENTE ---------- */
.flusso {
  display: grid; grid-template-columns: .8fr 1.6fr .9fr; gap: 1.25rem; align-items: center;
  padding: clamp(1.25rem, 3vw, 2rem); border-radius: 1.5rem;
  border: 1px solid var(--bordo); background: #080b12;
  position: relative; overflow: clip;
}
.flusso::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask: radial-gradient(circle at 50% 50%, #000, transparent 75%); mask: radial-gradient(circle at 50% 50%, #000, transparent 75%);
}
.flusso > * { position: relative; }
.flusso-passo {
  padding: 1.125rem; border-radius: 1rem; border: 1px solid var(--bordo); background: rgba(255, 255, 255, .02);
  transition: border-color .4s, box-shadow .4s, background .4s;
}
.flusso-passo h3 { margin-top: .375rem; font-size: 1.0625rem; }
.flusso-passo p { margin-top: .375rem; color: var(--tenue); font-size: .875rem; line-height: 1.5; }
.flusso-n { font-size: .6875rem; color: var(--tenue-2); }
.flusso-fine { display: grid; gap: 1rem; }
.flusso-passo.acceso, .orchestratore.acceso {
  border-color: rgba(94, 234, 212, .6); background: rgba(94, 234, 212, .06);
  box-shadow: 0 0 30px -8px rgba(94, 234, 212, .45);
}
.flusso-passo.acceso .flusso-n { color: var(--ciano); }
.flusso-centro { display: grid; gap: .875rem; }
.orchestratore {
  display: flex; align-items: center; gap: .625rem; flex-wrap: wrap;
  padding: .875rem 1rem; border-radius: 1rem;
  border: 1px solid rgba(167, 139, 250, .4);
  background: linear-gradient(120deg, rgba(167, 139, 250, .12), rgba(96, 165, 250, .08));
  transition: border-color .4s, box-shadow .4s, background .4s;
}
.orchestratore b { font-weight: 600; }
.orchestratore .mono { font-size: .75rem; color: var(--tenue); margin-left: auto; }
.agenti { display: grid; grid-template-columns: 1fr 1fr; gap: .625rem; }
.agente {
  display: grid; grid-template-columns: 1fr auto; gap: .375rem .75rem; align-items: center;
  padding: .75rem .875rem; border-radius: .75rem; border: 1px solid var(--bordo); background: rgba(255, 255, 255, .02);
  transition: border-color .3s;
}
.agente-nome { font-size: .875rem; font-weight: 500; }
.agente-stato { font-size: .6875rem; color: var(--tenue-2); }
.agente .barra { grid-column: 1 / -1; height: 3px; border-radius: 3px; background: rgba(255, 255, 255, .06); overflow: hidden; }
.agente .barra i { display: block; height: 100%; width: var(--p, 0%); background: var(--sfumatura); transition: width .25s linear; }
.agente.lavora { border-color: rgba(96, 165, 250, .4); }
.agente.lavora .agente-stato { color: var(--blu); }
.agente.fatto { border-color: rgba(94, 234, 212, .4); }
.agente.fatto .agente-stato { color: var(--ciano); }

.regole-agenti { margin-top: 1.25rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.regola { padding: 1.5rem; border-radius: var(--raggio); border: 1px solid var(--bordo); background: var(--superficie); }
.regola > .mono { font-size: .6875rem; text-transform: uppercase; letter-spacing: .12em; color: var(--viola); }
.regola h3 { margin-top: .625rem; }
.regola p { margin-top: .5rem; color: var(--tenue); font-size: .9375rem; }

/* ---------- PROFILO ---------- */
.profilo { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.profilo-carta { padding: 1.5rem; border-radius: var(--raggio); border: 1px solid var(--bordo); background: var(--superficie); }
.profilo-etichetta { font-size: .6875rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ciano); }
.profilo-ruoli { grid-row: span 2; background: radial-gradient(26rem 18rem at 0% 0%, rgba(167, 139, 250, .12), transparent 70%), var(--superficie); border-color: rgba(167, 139, 250, .3); }
.ruoli-target { margin-top: 1.25rem; display: grid; gap: .875rem; }
.ruoli-target li { font-size: clamp(1.125rem, 2vw, 1.375rem); font-weight: 600; letter-spacing: -.02em; padding-bottom: .875rem; border-bottom: 1px solid var(--bordo); }
.ruoli-target li:last-child { border-bottom: 0; padding-bottom: 0; }
.profilo-numeri { margin-top: 1rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.profilo-numeri dt { font-size: 1.75rem; font-weight: 700; letter-spacing: -.03em; background: var(--sfumatura); -webkit-background-clip: text; background-clip: text; color: transparent; }
.profilo-numeri dd { margin: 0; color: var(--tenue); font-size: .8125rem; line-height: 1.4; }
.profilo-carta .tag { margin-top: 1rem; }
.profilo-testo { margin-top: .75rem; color: var(--tenue); }
.profilo-cta { display: flex; flex-direction: column; align-items: flex-start; }
.profilo-cta .btn { margin-top: auto; }
.profilo-cta .profilo-testo { margin-bottom: 1.25rem; }

/* le .tag erano nelle versioni precedenti: definizione completa qui */
.tag { display: flex; flex-wrap: wrap; gap: .5rem; }
.tag li { font: 500 .75rem/1 var(--mono); padding: .5rem .75rem; border-radius: 999px; border: 1px solid var(--bordo); background: rgba(255, 255, 255, .025); color: var(--tenue); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: .75rem; max-width: 52rem; }
.faq details { border: 1px solid var(--bordo); border-radius: 1rem; background: var(--superficie); transition: border-color .3s; }
.faq details[open] { border-color: rgba(94, 234, 212, .35); }
.faq summary {
  cursor: pointer; list-style: none; padding: 1.125rem 3rem 1.125rem 1.25rem; position: relative;
  font-weight: 600; font-size: 1.0625rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 1.25rem; top: 50%; transform: translateY(-50%);
  font: 400 1.375rem var(--mono); color: var(--ciano); transition: transform .3s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 1.25rem 1.25rem; color: var(--tenue); }

@media (max-width: 1080px) {
  .flusso { grid-template-columns: 1fr; }
  .flusso-fine { grid-template-columns: 1fr 1fr; }
  .profilo { grid-template-columns: 1fr 1fr; }
  .profilo-ruoli { grid-row: auto; grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .regole-agenti, .profilo, .flusso-fine { grid-template-columns: 1fr; }
  .agenti { grid-template-columns: 1fr; }
  .orchestratore .mono { margin-left: 0; }
}

/* ---------- TRAFILETTO nell'apertura ---------- */
.trafiletto {
  position: relative; justify-self: end; width: min(100%, 26rem);
  padding: 1.5rem; border-radius: 1.375rem;
  background: rgba(11, 15, 23, .78);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 40px 80px -36px rgba(0, 0, 0, .9), 0 0 60px -20px rgba(96, 165, 250, .35);
}
.trafiletto::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, rgba(94, 234, 212, .7), rgba(96, 165, 250, .2) 40%, rgba(167, 139, 250, .6));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.traf-testa { display: flex; align-items: center; gap: .875rem; padding-bottom: 1.125rem; border-bottom: 1px solid var(--bordo); }
.avatar {
  width: 3.5rem; height: 3.5rem; border-radius: 50%; object-fit: cover; object-position: 45% 35%; flex: none;
  box-shadow: 0 0 0 2px var(--sfondo), 0 0 0 3.5px var(--ciano);
}
.avatar.mancante { display: none; }
.traf-nome { font-weight: 600; font-size: 1.0625rem; letter-spacing: -.01em; }
.traf-ruolo { color: var(--tenue); font-size: .875rem; }
.traf-file { margin-left: auto; align-self: flex-start; font-size: .6875rem; color: var(--tenue-2); }
.traf-dati { display: grid; gap: .875rem; padding-block: 1.125rem; }
.traf-dati div { display: grid; grid-template-columns: 5.75rem 1fr; gap: .75rem; align-items: baseline; }
.traf-dati dt { font-size: .75rem; color: var(--viola); }
.traf-dati dd { margin: 0; font-size: .9375rem; }
.traf-stato {
  display: flex; align-items: center; gap: .625rem;
  padding-top: 1.125rem; border-top: 1px solid var(--bordo);
  font-size: .875rem; color: var(--ciano);
}
.storia-singola { grid-template-columns: 1fr; }

@media (max-width: 960px) {
  .trafiletto { justify-self: start; margin-top: .5rem; }
}
@media (max-width: 400px) {
  .traf-dati div { grid-template-columns: 1fr; gap: .125rem; }
  .traf-file { display: none; }
}
.tappa-scuola {
  margin-top: 1rem; max-width: 46rem; padding-left: 1rem;
  border-left: 2px solid var(--viola);
  color: var(--testo); font-style: italic;
}
.ruolo-attuale { margin-top: 1rem; font-size: clamp(1.625rem, 3vw, 2.125rem); font-weight: 700; letter-spacing: -.03em; background: var(--sfumatura); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ruolo-attuale + .profilo-testo { margin-top: .25rem; }
.profilo-sotto { margin-top: 1.75rem; }
.campo-tg input { padding-left: 2.125rem; }
.campo-tg label { left: 2.125rem; }
.campo-chiocciola { position: absolute; left: 1rem; top: 1.5rem; z-index: 1; font: 500 1rem/1.5 var(--mono); color: var(--blu); pointer-events: none; }
.aiuto { margin-top: -.25rem; font-size: .8125rem; color: var(--tenue-2); }


/* ================= EFFETTI DI SCROLL ================= */

/* barra di avanzamento in alto */
.avanzamento {
  position: fixed; left: 0; top: 0; z-index: 60; height: 2px; width: 100%;
  background: var(--sfumatura); transform-origin: 0 50%; transform: scaleX(var(--letto, 0));
  box-shadow: 0 0 12px rgba(96, 165, 250, .7);
  pointer-events: none;
}

/* alone che segue il puntatore su tutta la pagina */
.alone {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(36rem circle at var(--ax, -50%) var(--ay, -50%), rgba(96, 165, 250, .06), transparent 60%);
}
main, .piede { position: relative; z-index: 1; }

/* titoli che compaiono parola per parola, da sfocati a nitidi */
.js .parole .parola {
  display: inline-block; opacity: 0; filter: blur(10px); transform: translateY(.45em) rotate(2deg);
  transition: opacity .7s cubic-bezier(.2, .7, .2, 1), filter .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1);
  transition-delay: calc(var(--i, 0) * 55ms);
}
.js .parole.visibile .parola { opacity: 1; filter: none; transform: none; }
.js .rivela.parole { opacity: 1; transform: none; }

/* testo che si riempie di colore mentre scorri */
.riempi {
  background: linear-gradient(90deg, var(--testo) 0 var(--r, 0%), rgba(233, 237, 245, .16) var(--r, 0%) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.citazione blockquote.riempi { background: linear-gradient(90deg, var(--testo) 0 var(--r, 0%), rgba(233, 237, 245, .16) var(--r, 0%) 100%); -webkit-background-clip: text; background-clip: text; }

/* linea del percorso che si disegna con lo scroll, con una testa luminosa */
.js .viaggio::before { transform-origin: top; transform: scaleY(var(--av, 0)); opacity: 1; }
.testa-linea {
  position: absolute; left: 7.5rem; top: calc(1rem + var(--av, 0) * (100% - 2rem)); z-index: 2;
  width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%;
  background: #fff; box-shadow: 0 0 0 4px rgba(167, 139, 250, .25), 0 0 18px 4px rgba(96, 165, 250, .9);
  pointer-events: none;
}

/* apertura: profondità durante lo scroll */
.hero-testo, .trafiletto { will-change: transform, opacity; }

/* il nastro si inclina con la velocità di scroll */
.nastro-traccia span { display: inline-block; transform: skewX(var(--inclina, 0deg)); transition: transform .25s ease-out; }

/* la linea sotto l'etichetta di sezione si allunga quando entra */
.js .sezione-n::after { width: 0; transition: width 1s .2s cubic-bezier(.2, .7, .2, 1); }
.js .visibile .sezione-n::after, .js .sezione-n.visibile::after { width: 3rem; }

/* inclinazione 3D leggera delle carte al passaggio del puntatore */
.inclina { transform: perspective(800px) rotateX(var(--tx, 0deg)) rotateY(var(--ty, 0deg)) translateY(var(--sollevata, 0)); transition: transform .25s ease-out, border-color .3s; }
.inclina:hover { --sollevata: -3px; }

@media (max-width: 720px) {
  .testa-linea { left: .4375rem; }
}
@media (prefers-reduced-motion: reduce) {
  .js .parole .parola { opacity: 1; filter: none; transform: none; }
  .riempi, .citazione blockquote.riempi { --r: 100%; }
  .js .viaggio::before { transform: none; }
  .testa-linea, .alone, .avanzamento { display: none; }
  .js .sezione-n::after { width: 3rem; }
}
.carta.inclina:hover { transform: perspective(800px) rotateX(var(--tx, 0deg)) rotateY(var(--ty, 0deg)) translateY(-3px); }

/* ================= EFFETTI "AI" ================= */

/* testo generato token per token, come l'output di un modello */
.js .genera .tok { opacity: 0; transition: opacity .25s ease, color .9s ease, text-shadow .9s ease; }
.js .genera .tok.on { opacity: 1; }
.js .genera .tok.nuovo { color: var(--ciano); text-shadow: 0 0 12px rgba(94, 234, 212, .7); }
.js .genera .tok.cur::after {
  content: ""; display: inline-block; width: .5em; height: 1em; margin-left: .15em; vertical-align: -.12em;
  background: var(--ciano); box-shadow: 0 0 10px rgba(94, 234, 212, .8);
  animation: lampeggia .8s steps(1) infinite;
}

/* gradienti dei titoli che scorrono lentamente */
h1 .sfumato, h2 .sfumato {
  background-image: linear-gradient(100deg, var(--ciano) 0%, var(--blu) 25%, var(--viola) 50%, var(--blu) 75%, var(--ciano) 100%);
  background-size: 200% 100%;
  animation: flusso-grad 8s linear infinite;
}
@keyframes flusso-grad { to { background-position: -200% 0; } }

/* etichette di sezione che si decodificano */
.decodifica { font-variant-ligatures: none; }

@media (prefers-reduced-motion: reduce) {
  .js .genera .tok { opacity: 1; }
  .js .genera .tok.cur::after { display: none; }
}

/* ---------- CHI SONO: webcam che insegue i colori ---------- */
.storia { align-items: center; }
.webcam { margin: 0; }
.webcam-schermo {
  position: relative; aspect-ratio: 4 / 3; border-radius: 1.25rem; overflow: hidden;
  background: radial-gradient(circle at 50% 40%, #0e1420, #05070b 75%);
  box-shadow: 0 40px 80px -36px rgba(0, 0, 0, .9), 0 0 60px -24px rgba(94, 234, 212, .35);
  cursor: crosshair;
}
.webcam-schermo::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none; z-index: 3;
  background: linear-gradient(140deg, rgba(94, 234, 212, .6), rgba(96, 165, 250, .15) 45%, rgba(167, 139, 250, .55));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
/* righe di scansione da vecchio sensore */
.webcam-schermo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 2;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .025) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
}
#webcam { position: absolute; inset: 0; width: 100%; height: 100%; }
.hud { position: absolute; inset: .875rem; z-index: 2; pointer-events: none; }
.hud-ang { position: absolute; width: 1.25rem; height: 1.25rem; border-color: rgba(233, 237, 245, .55); border-style: solid; border-width: 0; }
.a1 { left: 0; top: 0; border-left-width: 2px; border-top-width: 2px; }
.a2 { right: 0; top: 0; border-right-width: 2px; border-top-width: 2px; }
.a3 { left: 0; bottom: 0; border-left-width: 2px; border-bottom-width: 2px; }
.a4 { right: 0; bottom: 0; border-right-width: 2px; border-bottom-width: 2px; }
.hud-rec { position: absolute; left: 2rem; top: .125rem; display: flex; align-items: center; gap: .375rem; font-size: .6875rem; color: var(--testo); letter-spacing: .08em; }
.hud-rec i { width: .5rem; height: .5rem; border-radius: 50%; background: #ff4d6d; box-shadow: 0 0 8px #ff4d6d; animation: lampeggia 1.2s steps(1) infinite; }
.hud-file { position: absolute; right: 2rem; top: .125rem; font-size: .6875rem; color: var(--tenue); transition: color .4s; }
.hud-stato { position: absolute; left: 2rem; bottom: .125rem; font-size: .6875rem; color: var(--ciano); }
.webcam figcaption { margin-top: .875rem; font-size: .875rem; color: var(--tenue); display: flex; gap: .75rem; flex-wrap: wrap; align-items: baseline; }
.webcam figcaption .mono { font-size: .75rem; color: var(--viola); }
@media (max-width: 960px) {
  .webcam { max-width: 34rem; }
}

/* ================= PULSANTE E VERSIONE ACCESSIBILE ================= */
.nav-azioni { display: flex; align-items: center; gap: .625rem; }
.btn-a11y {
  display: inline-flex; align-items: center; gap: .5rem;
  min-height: 2.5rem; padding: .5rem .875rem; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--bordo-forte); background: rgba(255, 255, 255, .04);
  font-size: .875rem; font-weight: 500; color: var(--testo);
  transition: background .2s, border-color .2s;
}
.btn-a11y:hover { background: rgba(255, 255, 255, .09); }
.btn-a11y svg { width: 1.125rem; height: 1.125rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn-a11y svg circle { fill: currentColor; stroke: none; }
.btn-a11y[aria-pressed="true"] { background: #ffd166; border-color: #ffd166; color: #06080d; }
.solo-lettori { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (max-width: 560px) {
  .btn-a11y { padding: .5rem; width: 2.5rem; justify-content: center; }
  .btn-a11y-testo { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

/* --- versione accessibile --- */
html.accessibile {
  --tenue: #cdd4e2;
  --tenue-2: #aab3c5;
  --bordo: rgba(255, 255, 255, .22);
  --bordo-forte: rgba(255, 255, 255, .42);
  font-size: 112.5%;
}
html.accessibile body { line-height: 1.8; }
html.accessibile *, html.accessibile *::before, html.accessibile *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }

/* tutto il testo visibile subito, senza effetti */
html.accessibile .rivela, html.accessibile .parole .parola, html.accessibile .genera .tok {
  opacity: 1 !important; transform: none !important; filter: none !important;
}
html.accessibile .genera .tok.cur::after, html.accessibile .cursore { display: none; }
html.accessibile .hero-testo, html.accessibile .trafiletto { transform: none !important; opacity: 1 !important; }
html.accessibile .inclina, html.accessibile .carta:hover, html.accessibile .ritratto-cornice { transform: none !important; }

/* niente decorazioni in movimento o di disturbo */
html.accessibile #rete, html.accessibile .alone, html.accessibile .avanzamento, html.accessibile .testa-linea,
html.accessibile .nastro, html.accessibile .scorri, html.accessibile .bus, html.accessibile .webcam-schermo::after { display: none !important; }
html.accessibile .hero-velo { background: none; }
html.accessibile .js .viaggio::before, html.accessibile .viaggio::before { transform: none !important; background: var(--bordo-forte); }

/* testi sfumati → tinta unita ad alto contrasto */
html.accessibile .sfumato, html.accessibile .riempi, html.accessibile .profilo-numeri dt, html.accessibile .ruolo-attuale,
html.accessibile .strato-ai .strato-nome, html.accessibile .fluttua b, html.accessibile .ritratto-sostituto,
html.accessibile .racconto p:first-child::first-letter, html.accessibile .citazione blockquote, html.accessibile .numero strong {
  background: none !important; -webkit-background-clip: border-box !important; background-clip: border-box !important;
  color: #7ff0dc !important; -webkit-text-fill-color: currentColor;
}
html.accessibile .riempi, html.accessibile .citazione blockquote { color: var(--testo) !important; }

/* scritte piccole più leggibili */
html.accessibile .sezione-n, html.accessibile .etichetta, html.accessibile .traf-file, html.accessibile .hud-rec,
html.accessibile .hud-file, html.accessibile .hud-stato, html.accessibile .agente-stato, html.accessibile .flusso-n,
html.accessibile .strato-n, html.accessibile .strato-dettaglio, html.accessibile .pilastro-testa .mono, html.accessibile .profilo-etichetta,
html.accessibile .blocco-titolo, html.accessibile .regola > .mono, html.accessibile .tag li, html.accessibile .tappa-anni span,
html.accessibile .contatore, html.accessibile .piede, html.accessibile .aiuto, html.accessibile .traf-dati dt {
  font-size: .875rem !important; letter-spacing: .02em !important;
}
html.accessibile .sezione-n { text-transform: none; }

/* link e focus ben visibili */
html.accessibile main a:not(.btn), html.accessibile .piede a { text-decoration: underline; text-underline-offset: .2em; }
html.accessibile :focus-visible { outline: 3px solid #ffd166 !important; outline-offset: 3px; }
html.accessibile .campo input, html.accessibile .campo textarea { border-width: 2px; }
html.accessibile .genera .tok.nuovo { color: inherit; text-shadow: none; }
.grazie .btn { margin-top: .75rem; }

/* campo Telegram: la "@" compare solo quando si scrive, allineata al testo */
.campo-tg input { padding-left: 1rem; }
.campo-tg label { left: 1rem; }
.campo-tg input:focus, .campo-tg input:not(:placeholder-shown) { padding-left: 1.9rem; }
.campo-chiocciola {
  position: absolute; left: 1rem; top: calc(1.5rem + 1px);
  font: 400 1rem/1.65 var(--sans); color: var(--blu);
  opacity: 0; pointer-events: none;
}
.campo-tg input:focus ~ .campo-chiocciola, .campo-tg input:not(:placeholder-shown) ~ .campo-chiocciola { opacity: 1; }

/* ---------- menu: sezione attiva ---------- */
.nav nav { position: relative; }
.nav nav a { position: relative; padding-block: .375rem; transition: color .3s, text-shadow .3s; }
.nav nav a.attivo { color: var(--testo); text-shadow: 0 0 16px rgba(94, 234, 212, .55); }
.nav-indicatore {
  position: absolute; bottom: -.125rem; left: 0; width: 0; height: 2px; border-radius: 2px;
  background: var(--sfumatura);
  box-shadow: 0 0 10px rgba(96, 165, 250, .85), 0 0 22px rgba(167, 139, 250, .45);
  opacity: 0; pointer-events: none;
  transition: left .45s cubic-bezier(.2, .7, .2, 1), width .45s cubic-bezier(.2, .7, .2, 1), opacity .3s;
}
.nav-indicatore.visibile { opacity: 1; }
.nav .btn-piccolo.cta-attiva { box-shadow: 0 0 0 4px rgba(94, 234, 212, .18), 0 0 28px rgba(96, 165, 250, .7); }
html.accessibile .nav nav a.attivo { text-shadow: none; text-decoration: underline; text-underline-offset: .35em; }
html.accessibile .nav-indicatore { box-shadow: none; }

/* ================= SMARTPHONE ================= */
html { -webkit-tap-highlight-color: transparent; }

/* pulsante menu: visibile solo quando le voci non stanno nella barra */
.btn-menu {
  display: none; width: 2.75rem; height: 2.75rem; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--bordo-forte); background: rgba(255, 255, 255, .04); color: var(--testo);
  align-items: center; justify-content: center;
}
.btn-menu-righe { display: grid; gap: 4px; width: 1.125rem; }
.btn-menu-righe i { display: block; height: 2px; border-radius: 2px; background: currentColor; transition: transform .25s, opacity .25s; }
.btn-menu[aria-expanded="true"] .btn-menu-righe i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.btn-menu[aria-expanded="true"] .btn-menu-righe i:nth-child(2) { opacity: 0; }
.btn-menu[aria-expanded="true"] .btn-menu-righe i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* pulsante tema: solo nella versione accessibile */
.btn-tema { display: none; }
html.accessibile .btn-tema { display: inline-flex; }

@media (max-width: 960px) {
  .btn-menu { display: inline-flex; }
  /* il menu diventa una tendina sotto la barra */
  .nav nav {
    display: flex; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; gap: 0;
    padding: .5rem clamp(1.25rem, 4vw, 2.5rem) 1rem;
    background: rgba(6, 8, 13, .97);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--bordo);
    font-size: 1.125rem; color: var(--testo);
    visibility: hidden; opacity: 0; transform: translateY(-.5rem);
    transition: opacity .2s, transform .2s, visibility 0s .2s;
  }
  .nav.menu-aperto nav { visibility: visible; opacity: 1; transform: none; transition: opacity .2s, transform .2s; }
  .nav.menu-aperto { background: rgba(6, 8, 13, .97); border-bottom-color: var(--bordo); }
  .nav nav a { display: flex; align-items: center; min-height: 3.25rem; padding: 0; border-bottom: 1px solid var(--bordo); }
  .nav nav a:last-of-type { border-bottom: 0; }
  .nav nav a.attivo { color: var(--ciano); }
  .nav-indicatore { display: none; }
}

@media (max-width: 720px) {
  /* aree di tocco di almeno 44px */
  .logo-segno { width: 2.75rem; height: 2.75rem; }
  .btn-a11y { width: 2.75rem; min-height: 2.75rem; }
  .btn-piccolo { min-height: 2.75rem; }
  .motivi span { display: inline-flex; align-items: center; min-height: 2.75rem; padding-inline: 1rem; }
  .consenso { padding-block: .375rem; }
  .consenso input { width: 1.5rem; height: 1.5rem; margin-top: 0; }
  .consenso a, .linkedin a { display: inline-block; padding-block: .625rem; margin-block: -.625rem; }
  .piede-link a { display: inline-flex; align-items: center; min-height: 2.75rem; padding-inline: .25rem; }
  .nav-azioni { gap: .5rem; }
  .logo { gap: .5rem; }

  /* niente testo sotto i 12px */
  .hud-rec, .hud-file, .hud-stato, .traf-file, .flusso-n, .agente-stato, .strato-n, .strato-dettaglio,
  .profilo-etichetta, .pilastro-testa .mono, .regola > .mono, .contatore, .tappa-anni span, .blocco-titolo, .sezione-n,
  .codice, .webcam figcaption .mono, .scheda-titolo, .pila-base, .salto-anno, .tag li, .traf-dati dt { font-size: .75rem !important; }

  /* titoli un po' più compatti per non andare a capo parola per parola */
  h2 { font-size: clamp(1.875rem, 8.4vw, 2.5rem); }
  .sezione-n { letter-spacing: .1em; }
}

@media (max-width: 400px) {
  .btn-piccolo { padding-inline: .875rem; }
}

/* ================= TEMA CHIARO (versione accessibile) ================= */
html.accessibile.chiaro {
  color-scheme: light;
  --sfondo: #ffffff;
  --sfondo-2: #eef2f7;
  --superficie: #f5f7fa;
  --bordo: rgba(11, 18, 32, .2);
  --bordo-forte: rgba(11, 18, 32, .5);
  --testo: #0b1220;
  --tenue: #2b3445;
  --tenue-2: #475266;
  --ciano: #00695f;
  --blu: #1d4ed8;
  --viola: #5b21b6;
  --rosso: #b4123b;
}
html.accessibile.chiaro body { background: #ffffff; }

/* testi che erano sfumati: tinta unita scura */
html.accessibile.chiaro .sfumato, html.accessibile.chiaro .profilo-numeri dt, html.accessibile.chiaro .ruolo-attuale,
html.accessibile.chiaro .strato-ai .strato-nome, html.accessibile.chiaro .racconto p:first-child::first-letter,
html.accessibile.chiaro .numero strong { color: #00695f !important; }

/* superfici che erano scure */
html.accessibile.chiaro .nav.scrollata, html.accessibile.chiaro .nav.menu-aperto { background: rgba(255, 255, 255, .97); }
html.accessibile.chiaro .trafiletto { background: #ffffff; box-shadow: 0 10px 30px -12px rgba(11, 18, 32, .25); }
html.accessibile.chiaro .terminale, html.accessibile.chiaro .scheda, html.accessibile.chiaro .flusso,
html.accessibile.chiaro .blocco, html.accessibile.chiaro .codice, html.accessibile.chiaro .modulo,
html.accessibile.chiaro .grazie, html.accessibile.chiaro .tappa-corpo, html.accessibile.chiaro .strato,
html.accessibile.chiaro .strato-ai, html.accessibile.chiaro .nodo, html.accessibile.chiaro .carta,
html.accessibile.chiaro .profilo-carta, html.accessibile.chiaro .regola, html.accessibile.chiaro .ruolo-carta {
  background: var(--superficie) !important; box-shadow: none !important;
}
html.accessibile.chiaro .terminale-barra { background: var(--sfondo-2); }
html.accessibile.chiaro .campo input, html.accessibile.chiaro .campo textarea { background: #ffffff; }
html.accessibile.chiaro .nucleo { background: var(--sfondo-2); box-shadow: none; }
html.accessibile.chiaro .agente .barra { background: rgba(11, 18, 32, .12); }
html.accessibile.chiaro .agente .barra i { background: var(--ciano); }
html.accessibile.chiaro .btn { color: #ffffff; background: #00695f; box-shadow: none; }
html.accessibile.chiaro .btn-vuoto { color: var(--testo); background: #ffffff; border-color: var(--bordo-forte); }
html.accessibile.chiaro .motivi input:checked + span { color: #ffffff; background: #00695f; }
html.accessibile.chiaro .btn-a11y, html.accessibile.chiaro .btn-menu { background: #ffffff; }
html.accessibile.chiaro .btn-a11y[aria-pressed="true"] { background: #0b1220; border-color: #0b1220; color: #ffffff; }
html.accessibile.chiaro .sezione-n::after, html.accessibile.chiaro .tappa-scuola { border-color: var(--viola); }
html.accessibile.chiaro .citazione blockquote, html.accessibile.chiaro .riempi { color: var(--testo) !important; }
html.accessibile.chiaro .tappa-oggi .tappa-corpo { border-color: var(--viola); }
html.accessibile.chiaro .telegram { background: #eef2fb; border-color: rgba(29, 78, 216, .4); }
html.accessibile.chiaro .hero-velo, html.accessibile.chiaro .sezione-ai::before, html.accessibile.chiaro .contatti::before { display: none; }
html.accessibile.chiaro :focus-visible { outline-color: #1d4ed8 !important; }

/* la webcam resta uno "schermo" scuro, con i suoi colori originali */
html.accessibile.chiaro .webcam-schermo { --testo: #e9edf5; --tenue: #8e97ab; --ciano: #5eead4; --viola: #a78bfa; }
@media (max-width: 720px) { .ruolo-carta > .mono { font-size: .75rem; } }

/* versione accessibile scura: pulsanti a tinta unita, contrasto certo */
html.accessibile:not(.chiaro) .btn:not(.btn-vuoto), html.accessibile:not(.chiaro) .motivi input:checked + span { background: #7ff0dc; color: #04110f; box-shadow: none; }

/* ---------- nota a margine: il sito come laboratorio ---------- */
.nota-laboratorio { padding-block: clamp(2rem, 5vw, 3rem); }
.nota-laboratorio p:not(.nota-etichetta) {
  max-width: 46rem; margin-top: .625rem; padding-left: 1rem;
  border-left: 2px solid var(--viola);
  color: var(--tenue); font-size: .96875rem; line-height: 1.7;
}
.nota-laboratorio strong { color: var(--testo); font-weight: 600; }
.nota-etichetta { font-size: .75rem; color: var(--viola); letter-spacing: .04em; }
.contatti::before { top: -12%; }

/* ================= SMARTPHONE: pagina più corta ================= */
@media (max-width: 720px) {
  /* schede a scorrimento laterale: la successiva si intravede a destra */
  .pilastri, .regole-agenti, .ruoli, .principi, .profilo, .tappa-dettagli {
    display: flex; gap: .75rem;
    overflow-x: auto; overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory; scroll-padding-inline: 1.25rem;
    margin-inline: -1.25rem; padding-inline: 1.25rem; padding-bottom: .5rem;
    scrollbar-width: none;
  }
  .pilastri::-webkit-scrollbar, .regole-agenti::-webkit-scrollbar, .ruoli::-webkit-scrollbar,
  .principi::-webkit-scrollbar, .profilo::-webkit-scrollbar, .tappa-dettagli::-webkit-scrollbar { display: none; }
  .pilastri > *, .regole-agenti > *, .ruoli > *, .principi > *, .profilo > * {
    flex: 0 0 84%; scroll-snap-align: start; min-width: 0;
  }
  .tappa-dettagli { margin-inline: 0 -1.25rem; padding-left: 0; scroll-padding-inline: 0; }
  .tappa-dettagli > * { flex: 0 0 88%; scroll-snap-align: start; min-width: 0; }
  .ruoli > * { flex-basis: 70%; }
  .profilo-ruoli { grid-row: auto; }

  /* i principi diventano schede, come le altre */
  .principio, .principio + .principio {
    padding: 1.25rem; border: 1px solid var(--bordo); border-radius: var(--raggio);
    background: var(--superficie);
  }
  .principio::before { display: none; }
  .principi { border-top: 0; }

  /* riquadro iniziale compatto: foto, nome, ruolo e stato */
  .trafiletto { padding: 1rem 1.125rem; }
  .traf-dati { display: none; }
  .traf-testa { padding-bottom: .875rem; }
  .traf-stato { padding-top: .875rem; }

  /* schema multiagente più compatto */
  .agenti { grid-template-columns: 1fr 1fr; gap: .5rem; }
  .agente { padding: .625rem .75rem; }
  .flusso { padding: 1rem; gap: .875rem; }
  .flusso-fine { grid-template-columns: 1fr 1fr; gap: .625rem; }
  .flusso-passo { padding: .875rem; }
  .flusso-passo p { font-size: .8125rem; }
  .orchestratore .mono { display: none; }

  /* schede più snelle */
  .tappa-corpo { padding: 1.125rem; }
  .pilastro, .regola, .profilo-carta { padding: 1.25rem; }
  .pila { gap: .5rem; }
  .strato { min-height: 3.25rem; }
}

/* suggerimento "scorri" sotto le righe di schede */
.scorri-suggerimento { display: none; }
@media (max-width: 720px) {
  .scorri-suggerimento {
    display: flex; align-items: center; gap: .5rem; margin-top: .5rem;
    font: .75rem var(--mono); color: var(--tenue-2);
  }
  .scorri-suggerimento::after { content: "→"; color: var(--ciano); animation: spingi 1.6s ease-in-out infinite; }
  @keyframes spingi { 50% { transform: translateX(4px); } }
}

/* versione accessibile: niente scorrimento laterale, schede una sotto l'altra */
html.accessibile .pilastri, html.accessibile .regole-agenti, html.accessibile .ruoli,
html.accessibile .principi, html.accessibile .profilo, html.accessibile .tappa-dettagli {
  display: grid !important; grid-template-columns: 1fr; overflow: visible; margin-inline: 0; padding-inline: 0;
}
@media (min-width: 721px) {
  html.accessibile .pilastri, html.accessibile .regole-agenti, html.accessibile .ruoli,
  html.accessibile .principi, html.accessibile .profilo { grid-template-columns: 1fr 1fr; }
}
html.accessibile .scorri-suggerimento { display: none; }
@media (max-width: 720px) {
  .js .pilastri > .rivela, .js .regole-agenti > .rivela, .js .ruoli > .rivela,
  .js .principi > .rivela, .js .profilo > .rivela { opacity: 1; transform: none; }
}

/* ================= MODALITÀ CLASSIC (chiara) / DARK ================= */
.btn-tema { display: inline-flex !important; }
.btn-tema .icona-luna { display: none; }
html.chiaro .btn-tema .icona-sole { display: none; }
html.chiaro .btn-tema .icona-luna { display: block; }
.btn-tema .icona-luna path { fill: currentColor; stroke: none; }
.solo-mobile { display: none !important; }
@media (max-width: 960px) { .nav nav a.solo-mobile { display: flex !important; } }

html.chiaro {
  color-scheme: light;
  --sfondo: #f7f7f4;
  --sfondo-2: #ecece6;
  --superficie: #ffffff;
  --bordo: rgba(20, 24, 33, .12);
  --bordo-forte: rgba(20, 24, 33, .28);
  --testo: #14181f;
  --tenue: #475061;
  --tenue-2: #5f6878;
  --ciano: #0f766e;
  --blu: #1d4ed8;
  --viola: #6d28d9;
  --rosso: #be123c;
}
html.chiaro body { background: var(--sfondo); }
html.chiaro ::selection { background: rgba(15, 118, 110, .2); }

/* sfondo dell'apertura: veli chiari al posto di quelli scuri */
html.chiaro .hero-velo {
  background:
    radial-gradient(50rem 36rem at 78% 40%, rgba(29, 78, 216, .07), transparent 60%),
    radial-gradient(40rem 26rem at 5% 70%, rgba(15, 118, 110, .07), transparent 60%),
    linear-gradient(90deg, rgba(247, 247, 244, .92) 0%, rgba(247, 247, 244, .55) 60%, rgba(247, 247, 244, .3) 100%),
    linear-gradient(0deg, var(--sfondo) 0%, var(--sfondo) 4%, transparent 38%);
}

/* superfici che nel tema scuro sono nere */
html.chiaro .nav.scrollata, html.chiaro .nav.menu-aperto { background: rgba(247, 247, 244, .92); }
@media (max-width: 960px) { html.chiaro .nav nav { background: rgba(247, 247, 244, .98); } }
html.chiaro .trafiletto { background: rgba(255, 255, 255, .85); box-shadow: 0 30px 60px -36px rgba(20, 24, 33, .35); }
html.chiaro .terminale, html.chiaro .scheda, html.chiaro .flusso, html.chiaro .codice { background: #ffffff; }
html.chiaro .terminale-barra { background: var(--sfondo-2); }
html.chiaro .blocco { background: var(--sfondo); }
html.chiaro .grazie { background: #ffffff; }
html.chiaro .campo input, html.chiaro .campo textarea { background: #ffffff; }
html.chiaro .modulo { background: #ffffff; box-shadow: 0 30px 60px -40px rgba(20, 24, 33, .3); }
html.chiaro .carta, html.chiaro .tappa-corpo, html.chiaro .profilo-carta, html.chiaro .regola { background: #ffffff; }
html.chiaro .strato { background: #ffffff; box-shadow: 0 10px 24px -16px rgba(20, 24, 33, .3); }
html.chiaro .strato-ai { background: linear-gradient(120deg, rgba(15, 118, 110, .12), rgba(29, 78, 216, .12), rgba(109, 40, 217, .14)), #ffffff; }
html.chiaro .nodo { background: #ffffff; box-shadow: 0 0 0 4px var(--sfondo), 0 8px 20px -10px rgba(20, 24, 33, .3); }
html.chiaro .nucleo { background: radial-gradient(circle at 35% 30%, rgba(15, 118, 110, .25), rgba(109, 40, 217, .18) 60%, #ffffff); box-shadow: 0 0 40px rgba(29, 78, 216, .2); }
html.chiaro .agente .barra { background: rgba(20, 24, 33, .1); }
html.chiaro .btn { color: #ffffff; }
html.chiaro .btn-vuoto { color: var(--testo); background: #ffffff; }
html.chiaro .motivi input:checked + span { color: #ffffff; }
html.chiaro .btn-a11y, html.chiaro .btn-menu { background: #ffffff; }
html.chiaro .testa-linea { background: var(--viola); box-shadow: 0 0 0 4px rgba(109, 40, 217, .2); }
html.chiaro .nastro-traccia span { -webkit-text-stroke-color: rgba(20, 24, 33, .25); }
html.chiaro .riempi, html.chiaro .citazione blockquote.riempi {
  background: linear-gradient(90deg, var(--testo) 0 var(--r, 0%), rgba(20, 24, 33, .2) var(--r, 0%) 100%);
  -webkit-background-clip: text; background-clip: text;
}
html.chiaro .genera .tok.nuovo { text-shadow: none; }
/* la webcam resta uno "schermo" scuro con i suoi colori */
html.chiaro .webcam-schermo { --testo: #e9edf5; --tenue: #8e97ab; --ciano: #5eead4; --viola: #a78bfa; }

/* ================= ACCESSIBILITÀ: niente immagini di disturbo ================= */
/* la rete neurale dell'apertura sta dietro al testo: nella versione accessibile si nasconde */
html.accessibile #rete { display: none !important; }

/* ================= INTESTAZIONE SUGLI SCHERMI STRETTI ================= */
@media (max-width: 400px) {
  .nav { padding-inline: 1rem; }
  .nav-azioni { gap: .375rem; }
}
@media (max-width: 359px) {
  .nav .btn-piccolo { display: none; } /* "Contatti" è nel menu */
}

/* ---------- Classic: effetti ritarati per lo sfondo chiaro ---------- */
html.chiaro .flusso::before {
  background-image: linear-gradient(rgba(20, 24, 33, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 24, 33, .05) 1px, transparent 1px);
}
html.chiaro .raggi line { stroke: var(--blu); opacity: .35; }
html.chiaro .esagono { fill: rgba(29, 78, 216, .04); stroke: var(--blu); opacity: .55; }
html.chiaro .anello-orbita.interno { stroke: rgba(15, 118, 110, .3); }
html.chiaro .nodo.acceso { box-shadow: 0 0 0 4px var(--sfondo), 0 0 0 1px var(--ciano), 0 8px 22px -8px rgba(15, 118, 110, .45); }
html.chiaro .bus { background: linear-gradient(0deg, rgba(15, 118, 110, .2), rgba(109, 40, 217, .5)); }
html.chiaro .bus i { background: var(--ciano); box-shadow: 0 0 8px 2px rgba(15, 118, 110, .45); }
html.chiaro .strato.acceso { box-shadow: 0 0 0 1px rgba(15, 118, 110, .35), 0 12px 28px -12px rgba(15, 118, 110, .45); }
html.chiaro .strato-ai { box-shadow: 0 0 0 1px rgba(109, 40, 217, .3), 0 18px 40px -18px rgba(29, 78, 216, .45); animation: none; }
html.chiaro .flusso-passo.acceso, html.chiaro .orchestratore.acceso {
  border-color: var(--ciano); background: rgba(15, 118, 110, .06); box-shadow: 0 10px 26px -14px rgba(15, 118, 110, .5);
}
html.chiaro .tappa::before { box-shadow: 0 0 0 5px var(--sfondo), 0 0 0 7px rgba(15, 118, 110, .15); }
html.chiaro .tappa-oggi::before { background: var(--viola); }
html.chiaro .viaggio::before { opacity: .8; }
html.chiaro .avanzamento { box-shadow: none; }
html.chiaro .nav-indicatore { box-shadow: 0 2px 8px rgba(29, 78, 216, .35); }
html.chiaro .nav nav a.attivo { text-shadow: none; color: var(--ciano); }
html.chiaro .nav .btn-piccolo.cta-attiva { box-shadow: 0 0 0 4px rgba(15, 118, 110, .18); }
html.chiaro .btn { box-shadow: 0 10px 24px -12px rgba(29, 78, 216, .55); }
html.chiaro .btn:hover { box-shadow: 0 0 0 4px rgba(15, 118, 110, .14), 0 14px 28px -12px rgba(109, 40, 217, .5); }
html.chiaro .carta::before { background: radial-gradient(22rem circle at var(--mx) var(--my), rgba(15, 118, 110, .07), transparent 45%); }
html.chiaro .carta:hover, html.chiaro .ruolo-carta:hover, html.chiaro .ruolo-carta.acceso { border-color: rgba(15, 118, 110, .45); }
html.chiaro .ruolo-carta.acceso { background: rgba(15, 118, 110, .05); }
html.chiaro .icona { background: linear-gradient(135deg, rgba(15, 118, 110, .1), rgba(109, 40, 217, .1)); }
html.chiaro .punto { background: var(--ciano); }
html.chiaro .genera .tok.nuovo { color: var(--blu); }
html.chiaro .genera .tok.cur::after, html.chiaro .cursore { box-shadow: none; }
html.chiaro .alone { background: radial-gradient(36rem circle at var(--ax, -50%) var(--ay, -50%), rgba(29, 78, 216, .05), transparent 60%); }
html.chiaro .webcam-schermo { box-shadow: 0 30px 60px -30px rgba(20, 24, 33, .45), 0 0 0 1px rgba(20, 24, 33, .08); }
html.chiaro .trafiletto::before { background: linear-gradient(140deg, rgba(15, 118, 110, .55), rgba(29, 78, 216, .15) 45%, rgba(109, 40, 217, .45)); }
html.chiaro .tag li { background: var(--sfondo); }
html.chiaro .tag li:hover { border-color: rgba(15, 118, 110, .45); }
html.chiaro .faq details[open] { border-color: rgba(15, 118, 110, .4); }
html.chiaro .telegram { background: rgba(29, 78, 216, .06); border-color: rgba(29, 78, 216, .3); }
html.chiaro .scorri { border-color: var(--bordo-forte); }
html.chiaro .logo-segno { background: #ffffff; }
html.chiaro .salta { background: var(--testo); color: #ffffff; }

/* ================= INTESTAZIONE RIDISEGNATA ================= */
/* barra piena in alto; scorrendo diventa una "pillola" sospesa */
.nav {
  left: 50%; right: auto; width: 100%; transform: translateX(-50%);
  transition: width .45s cubic-bezier(.2, .7, .2, 1), top .45s cubic-bezier(.2, .7, .2, 1),
              padding .45s cubic-bezier(.2, .7, .2, 1), border-radius .45s, background .3s, border-color .3s, box-shadow .3s;
}
.nav.scrollata {
  top: calc(env(safe-area-inset-top, 0px) + .625rem);
  width: min(76rem, calc(100% - 1.5rem));
  padding: .5rem .5rem .5rem .625rem;
  border-radius: 999px;
  border: 1px solid var(--bordo-forte);
  box-shadow: 0 18px 40px -22px rgba(0, 0, 0, .8);
}
html.chiaro .nav.scrollata { box-shadow: 0 16px 36px -22px rgba(20, 24, 33, .35); }
@media (max-width: 960px) {
  .nav.scrollata nav { top: calc(100% + .5rem); border: 1px solid var(--bordo-forte); border-radius: 1.25rem; }
  .nav.menu-aperto:not(.scrollata) nav { border-radius: 0; }
}

/* marchio: monogramma con un piccolo "agente" in orbita + riga del laboratorio */
.logo { gap: .75rem; min-width: 0; }
.logo-segno { width: 2.5rem; height: 2.5rem; border-radius: 50%; flex: none; }
.logo-segno::after { border-radius: 50%; }
.logo-lettere { position: relative; z-index: 1; font-size: .8125rem; font-weight: 700; letter-spacing: .02em; }
.logo-orbita { position: absolute; inset: -2px; width: calc(100% + 4px); height: calc(100% + 4px); overflow: visible; animation: gira 9s linear infinite; }
.logo-orbita circle:first-child { fill: none; stroke: transparent; }
.logo-agente { fill: var(--ciano); filter: drop-shadow(0 0 4px rgba(94, 234, 212, .9)); }
html.chiaro .logo-agente { filter: none; }
.logo:hover .logo-orbita { animation-duration: 2.5s; }
.logo-testo { display: grid; line-height: 1.15; min-width: 0; }
.logo-nome { font-weight: 650; letter-spacing: -.01em; font-size: 1rem; }
.logo-sotto { display: flex; align-items: center; gap: .375rem; margin-top: .2rem; font-size: .6875rem; color: var(--tenue); letter-spacing: .02em; white-space: nowrap; }
.logo-sotto i { width: .375rem; height: .375rem; border-radius: 50%; background: var(--ciano); flex: none; animation: pulsa 2.4s infinite; }

/* pulsante tondo con sola icona (accessibilità) */
.btn-icona {
  display: inline-grid; place-items: center; flex: none;
  width: 2.75rem; height: 2.75rem; border-radius: 50%; cursor: pointer;
  border: 1px solid var(--bordo-forte); background: rgba(255, 255, 255, .04); color: var(--testo);
  transition: background .2s, border-color .2s, transform .2s;
}
.btn-icona:hover { background: rgba(255, 255, 255, .1); transform: translateY(-1px); }
.btn-icona svg { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn-icona svg circle { fill: currentColor; stroke: none; }
.btn-icona[aria-pressed="true"] { background: #ffd166; border-color: #ffd166; color: #06080d; }
html.chiaro .btn-icona { background: #ffffff; }
html.chiaro .btn-icona:hover { background: var(--sfondo-2); }
html.accessibile.chiaro .btn-icona[aria-pressed="true"] { background: #0b1220; border-color: #0b1220; color: #ffffff; }
.nav-azioni { gap: .5rem; }

@media (max-width: 1100px) { .logo-sotto { display: none; } }
@media (max-width: 560px) { .logo-testo { display: none; } }

/* ================= PIÈ DI PAGINA: selettore Dark / Classic ================= */
.piede { align-items: center; }
.tema-switch {
  display: inline-flex; padding: .25rem; gap: .25rem;
  border-radius: 999px; border: 1px solid var(--bordo-forte); background: var(--superficie);
}
.tema-switch button {
  display: inline-flex; align-items: center; gap: .375rem; min-height: 2.25rem; padding: 0 .875rem;
  border: 0; border-radius: 999px; background: transparent; cursor: pointer;
  font-size: .8125rem; font-weight: 500; color: var(--tenue);
  transition: background .25s, color .25s;
}
.tema-switch button:hover { color: var(--testo); }
.tema-switch button svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.tema-switch button svg .pieno { fill: currentColor; stroke: none; }
.tema-switch button[aria-pressed="true"] { background: var(--sfumatura); color: #04110f; font-weight: 600; }
html.chiaro .tema-switch button[aria-pressed="true"] { color: #ffffff; }
html.accessibile .tema-switch button[aria-pressed="true"] { background: var(--testo); color: var(--sfondo); }
@media (max-width: 720px) {
  .piede { flex-direction: column; align-items: flex-start; }
  .tema-switch button { min-height: 2.75rem; }
}
/* pillola: fondo più pieno, il contenuto dietro non deve leggersi */
.nav.scrollata { background: rgba(8, 11, 18, .9); backdrop-filter: blur(18px) saturate(150%); -webkit-backdrop-filter: blur(18px) saturate(150%); }
html.chiaro .nav.scrollata { background: rgba(255, 255, 255, .9); }
.logo-sotto i { box-shadow: none; animation: lampeggia 2.4s steps(1) infinite; }
@media (max-width: 720px) { .logo-segno { width: 2.75rem; height: 2.75rem; } }

/* ---------- marchio: scintilla AI al posto delle iniziali ---------- */
.logo-ai { position: relative; z-index: 1; width: 72%; height: 72%; overflow: visible; }
.logo-ai .stop-1 { stop-color: var(--ciano); }
.logo-ai .stop-2 { stop-color: var(--blu); }
.logo-ai .stop-3 { stop-color: var(--viola); }
.logo-ai .scintilla, .logo-ai .scintilla-piccola { fill: url(#grad-logo); transform-box: fill-box; transform-origin: center; }
.logo-ai .scintilla { animation: pensa 7s cubic-bezier(.6, 0, .3, 1) infinite; filter: drop-shadow(0 0 3px rgba(96, 165, 250, .55)); }
.logo-ai .scintilla-piccola { animation: brilla-piccola 2.8s ease-in-out infinite; }
@keyframes pensa { 0%, 70% { transform: rotate(0) scale(1); } 85% { transform: rotate(90deg) scale(.82); } 100% { transform: rotate(90deg) scale(1); } }
@keyframes brilla-piccola { 0%, 100% { opacity: .35; transform: scale(.7); } 50% { opacity: 1; transform: scale(1.1); } }
.logo:hover .logo-ai .scintilla { animation-duration: 2.2s; }
html.chiaro .logo-ai .scintilla { filter: none; }
html.accessibile .logo-ai .scintilla, html.accessibile .logo-ai .scintilla-piccola { filter: none; opacity: 1; transform: none; }

/* ---------- marchio: ampolla del laboratorio con la scintilla AI ---------- */
.logo-ai { width: 78%; height: 78%; }
.logo-ai .ampolla { fill: none; stroke: var(--testo); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; opacity: .9; }
.logo-ai .liquido { fill: url(#grad-logo); }
.logo-ai .bolla { fill: var(--testo); opacity: 0; transform-box: fill-box; transform-origin: center; animation: bolla 3.2s ease-in infinite; }
.logo-ai .b2 { animation-delay: -1.1s; }
.logo-ai .b3 { animation-delay: -2.2s; }
@keyframes bolla { 0% { opacity: 0; transform: translateY(0) scale(.6); } 20% { opacity: .85; } 75% { opacity: .5; } 100% { opacity: 0; transform: translateY(-13px) scale(1); } }
.logo-ai .scintilla { animation: pensa 6s cubic-bezier(.6, 0, .3, 1) infinite; filter: drop-shadow(0 0 2.5px rgba(96, 165, 250, .7)); }
.logo:hover .logo-ai .bolla { animation-duration: 1.4s; }
html.chiaro .logo-ai .bolla { fill: #ffffff; }
html.chiaro .logo-ai .ampolla { opacity: 1; }
html.accessibile .logo-ai .bolla { display: none; }

/* ---------- pallino "laboratorio personale": respira, non sparisce ---------- */
.logo-sotto i { animation: respira-punto 2.4s ease-in-out infinite; }
@keyframes respira-punto { 50% { opacity: .35; } }

/* ---------- pulsante di contatto: freccia e riflesso di luce ---------- */
.btn-cta { position: relative; overflow: hidden; gap: .5rem; }
.btn-cta .freccia { display: inline-block; transition: transform .3s cubic-bezier(.2, .7, .2, 1); }
.btn-cta:hover .freccia { transform: translateX(4px); }
.btn-cta::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-20deg); pointer-events: none;
  animation: riflesso 6s ease-in-out infinite;
}
@keyframes riflesso { 0%, 80% { left: -60%; } 100% { left: 130%; } }
@media (max-width: 400px) { .btn-cta .freccia { display: none; } }

/* ---------- selettore di lingua ---------- */
.btn-lingua { font: 600 .8125rem var(--mono); letter-spacing: .04em; text-decoration: none; }
html.accessibile main a.btn-lingua, .btn-lingua { text-decoration: none; }

/* ---------- l'ampolla reagisce al clic ---------- */
.logo.reazione .logo-ai .bolla { animation-duration: .7s; }
.logo.reazione .logo-ai .scintilla { animation: giro-scintilla 1.2s cubic-bezier(.3, .7, .2, 1); }
.logo.reazione .logo-ai .ampolla { animation: scossa .5s ease-in-out 2; transform-box: fill-box; transform-origin: 50% 100%; }
.logo.reazione .logo-orbita { animation-duration: .8s; }
@keyframes giro-scintilla { 0% { transform: rotate(0) scale(1); } 40% { transform: rotate(200deg) scale(1.35); } 100% { transform: rotate(360deg) scale(1); } }
@keyframes scossa { 25% { transform: rotate(-6deg); } 75% { transform: rotate(6deg); } }

/* ================= SEZIONE AI: strati interattivi, una scheda alla volta ================= */
button.strato { font: inherit; color: inherit; cursor: pointer; text-align: left; }
button.strato:hover { border-color: rgba(94, 234, 212, .45); }
button.strato:focus-visible { outline: 2px solid var(--ciano); outline-offset: 3px; }
.pila-base { text-align: center; }

.pilastri-singolo { display: grid; align-items: center; }
.pilastri-singolo { gap: 1rem; }
.pilastri-singolo > .pilastro { padding: clamp(1.5rem, 3vw, 2.25rem); }
.js .pilastri-singolo { gap: 0; }
.js .pilastri-singolo > .pilastro {
  grid-area: 1 / 1; padding: clamp(1.5rem, 3vw, 2.25rem);
  opacity: 0; transform: translateY(10px); pointer-events: none;
  transition: opacity .45s ease, transform .45s cubic-bezier(.2, .7, .2, 1), border-color .3s;
}
.js .pilastri-singolo > .pilastro.acceso { opacity: 1; transform: none; pointer-events: auto; border-color: rgba(94, 234, 212, .4); }
.pilastri-singolo .pilastro h3 { font-size: clamp(1.375rem, 2.6vw, 1.75rem); letter-spacing: -.02em; }
.pilastri-singolo .pilastro p { font-size: 1.0625rem; line-height: 1.7; }
@media (max-width: 720px) {
  .pilastri.pilastri-singolo { display: grid; overflow: visible; margin-inline: 0; padding-inline: 0; padding-bottom: 0; }
  .pilastri.pilastri-singolo > * { min-width: 0; }
}
/* versione accessibile: niente diagramma, tutte le schede una sotto l'altra */
html.accessibile .pilastri-singolo { display: grid !important; grid-template-columns: 1fr; gap: 1rem; }
html.accessibile .pilastri-singolo > .pilastro { grid-area: auto; opacity: 1 !important; transform: none !important; pointer-events: auto; }
.pilastri-singolo { grid-template-columns: minmax(0, 1fr); }
.intro strong { color: var(--testo); font-weight: 600; }


/* ================= ACCESSIBILITÀ: immagini in versione calma ================= */
/* al posto di nasconderle: ferme, senza bagliori, scie o effetti video */
.solo-accessibile { display: none; }
html.accessibile .solo-accessibile { display: inline; }
html.accessibile .solo-animato { display: none; }
html.accessibile .webcam-schermo { box-shadow: none; cursor: default; }
html.accessibile .webcam-schermo::before { background: var(--bordo-forte); }
html.accessibile .hud-rec i { box-shadow: none; }
html.accessibile .nucleo, html.accessibile .nodo, html.accessibile .nodo.acceso { box-shadow: none !important; }
html.accessibile .esagono { fill: none; }
html.accessibile .raggi line { stroke-dasharray: none; opacity: .5; }
html.accessibile .anello-orbita { stroke-dasharray: none; }
html.accessibile .strato, html.accessibile .strato.acceso, html.accessibile .strato-ai { box-shadow: none !important; transform: none !important; }
html.accessibile .strato.acceso { border-width: 2px; border-color: var(--ciano); }
html.accessibile .logo-agente { filter: none; }
html.accessibile .pila-base { color: var(--tenue); }

/* ================= ACCESSIBILITÀ: sempre chiara, niente selettore Dark ================= */
html.accessibile .tema-switch { display: none !important; }

/* frecce decorative generate dal CSS: niente lettura ad alta voce */
.tappa-anni span::before { content: "→ " / ""; }
.argomenti li::before { content: "→" / ""; }

/* webcam semplificata nella versione accessibile: tre colori e i loro nomi */
.webcam-semplice { display: none; }
html.accessibile .webcam-schermo { display: none; }
html.accessibile .webcam-semplice {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem 2.5rem;
  padding: 2.5rem 1.5rem; border: 2px solid var(--bordo-forte); border-radius: var(--raggio);
  background: #ffffff;
}
.webcam-semplice .colore { display: grid; justify-items: center; gap: .625rem; font-size: 1.125rem; font-weight: 600; color: var(--testo); }
.webcam-semplice .colore i { width: 4rem; height: 4rem; border-radius: 50%; border: 2px solid var(--testo); }
.webcam-semplice .c-ciano i { background: #2dd4bf; }
.webcam-semplice .c-ambra i { background: #fbbf24; }
.webcam-semplice .c-viola i { background: #a78bfa; }

/* i testi per i lettori di schermo restano dentro la propria scheda: senza
   questo, nelle righe a scorrimento laterale allargavano la pagina su smartphone */
.pilastri > *, .ruoli > *, .profilo > *, .tappa-dettagli > *, .blocco, .profilo-carta, .sezione-n { position: relative; }
.solo-lettori { left: 0; top: 0; margin: -1px; padding: 0; border: 0; }