/* =============================================================================
   DAPI Certification - Design System
   Direzione: "forensic ledger" - identita, fiducia, evidenza, rigore.
   Palette famiglia EVIDE: indigo profondo, violetto, lavanda, bianco, grigi.
   ============================================================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* Colore */
    --indigo-deep:   #241A62;
    --indigo:        #3C3489;
    --violet:        #534AB7;
    --violet-soft:   #7A72D4;
    --lavender:      #EAE7FC;
    --lavender-pale: #F5F3FE;
    --white:         #FFFFFF;
    --ink:           #221D4E;
    --ink-soft:      #55507A;
    --ink-mute:      #665F8C;
    --on-dark:       #C9C4F0;
    --on-dark-mute:  #9891CC;
    --hairline:      #E4E1F5;
    --hairline-dark: rgba(201, 196, 240, 0.22);

    /* Tipografia */
    --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, 'SF Mono', SFMono-Regular, 'Cascadia Mono', Menlo, Consolas, monospace;

    --fs-display: clamp(2.6rem, 6.5vw, 4.75rem);
    --fs-h2:      clamp(1.95rem, 4.6vw, 3.5rem);
    --fs-h3:      clamp(1.35rem, 2.6vw, 1.85rem);
    --fs-statement: clamp(1.65rem, 3.6vw, 2.6rem);
    --fs-lead:    clamp(1.15rem, 1.9vw, 1.4rem);
    --fs-body:    1.125rem;
    --fs-small:   1.0625rem;
    --fs-label:   0.875rem;

    /* Spazio */
    --pad-section: clamp(5rem, 11vw, 9rem);
    --gap:         clamp(1.25rem, 3vw, 2.25rem);
    --measure:     34rem;
    --measure-wide: 46rem;

    --radius:    14px;
    --radius-sm: 8px;
    --shell:     1240px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--sans);
    color: var(--ink);
    background: var(--lavender-pale);
    font-size: var(--fs-body);
    line-height: 1.7;
    overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

img { max-width: 100%; display: block; }
a { color: var(--indigo); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 3px solid var(--violet); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3, h4 { line-height: 1.12; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); }
h1 { font-size: var(--fs-display); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); line-height: 1.25; }

.shell { max-width: var(--shell); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem); }
.measure { max-width: var(--measure); }
.measure-wide { max-width: var(--measure-wide); }
.measure-broad { max-width: none; }
@media (min-width: 1020px) {
    .measure-broad { max-width: 88%; }
}

/* Etichetta tecnica monospace: la voce "forense" del sistema */
.label {
    font-family: var(--mono);
    font-size: var(--fs-label);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--violet);
    font-weight: 500;
    display: block;
    margin-bottom: 1.25rem;
}
.on-dark .label { color: var(--lavender); opacity: .82; }

.lead { font-size: var(--fs-lead); color: var(--ink-soft); line-height: 1.6; }
.on-dark .lead { color: var(--on-dark); }

/* =============================================================================
   BANDE
   ============================================================================= */

.band { padding: var(--pad-section) 0; position: relative; }
.band-white    { background: var(--lavender-pale); }
.band-pale     { background: var(--lavender); }
.band-lavender { background: var(--lavender); }

.band-deep {
    background: var(--indigo-deep);
    color: var(--on-dark);
}
.band-indigo {
    background: var(--indigo);
    color: var(--on-dark);
}
.band-deep h1, .band-deep h2, .band-deep h3,
.band-indigo h1, .band-indigo h2, .band-indigo h3 { color: var(--white); }
.band-deep p, .band-indigo p { color: var(--on-dark); }

.band-tight { padding: clamp(3.5rem, 7vw, 5.5rem) 0; }

/* =============================================================================
   HEADER
   ============================================================================= */

.masthead {
    background: var(--lavender-pale);
    border-bottom: 1px solid var(--hairline);
    position: sticky;
    top: 0;
    z-index: 200;
}
.masthead-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 88px;
    padding-top: .75rem;
    padding-bottom: .75rem;
}
.brand img { height: 46px; width: auto; }

.burger {
    display: grid;
    place-content: center;
    gap: 6px;
    width: 48px;
    height: 48px;
    background: transparent;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-shrink: 0;
}
.burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--indigo);
    border-radius: 2px;
}

/* width:100% forza il menu ad andare a capo sotto logo+hamburger quando
   si apre, invece di restare schiacciato nella stessa riga flex (il
   contenitore ha flex-wrap:wrap sopra apposta per questo). */
.nav { display: none; width: 100%; }
.nav.open { display: block; }

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 1rem 0 1.5rem;
}
.nav-item { border-bottom: 1px solid var(--hairline); }
.nav-item:last-child { border-bottom: none; }

.nav-link {
    display: block;
    padding: 1.05rem .25rem;
    color: var(--ink);
    font-weight: 600;
    font-size: 1.05rem;
    position: relative;
}
.nav-link:hover { color: var(--violet); text-decoration: none; }

/* Bandierina accanto alla voce "Lingua/Language": segnale visivo rapido
   che quella voce di menu e' il selettore lingua, indipendentemente
   dalla lingua della pagina corrente. */
.nav-flag {
    display: inline-block;
    width: 20px;
    height: 15px;
    margin-right: .45rem;
    vertical-align: middle;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0,0,0,.08);
}
.nav-link-lang { display: flex; align-items: center; }

/* Freccia per le voci con sottomenu: solo su mobile, dove il tap apre/chiude
   invece dell'hover. Aiuta a distinguere "naviga" da "espande". */
.nav-item.has-sub > .nav-link::after {
    content: "";
    position: absolute;
    right: .3rem;
    top: 50%;
    width: 9px;
    height: 9px;
    border-right: 2px solid var(--ink-mute);
    border-bottom: 2px solid var(--ink-mute);
    transform: translateY(-65%) rotate(45deg);
    transition: transform .18s ease;
}
.nav-item.has-sub.open > .nav-link::after { transform: translateY(-35%) rotate(-135deg); }

.nav-cta {
    display: inline-block;
    background: var(--indigo);
    color: var(--white) !important;
    padding: .85rem 1.6rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    margin: 1rem 0 .25rem;
}
.nav-cta:hover { background: var(--violet); text-decoration: none; }

.submenu {
    display: none;
    list-style: none;
    padding: 0 0 .75rem .9rem;
    border-left: 2px solid var(--lavender);
    margin-left: .25rem;
}
.nav-item.open > .submenu { display: block; }
.submenu a {
    display: block;
    padding: .6rem .25rem;
    font-size: var(--fs-small);
    color: var(--ink-soft);
}
.submenu a:hover { color: var(--violet); }

@media (min-width: 1040px) {
    .nav-item.has-sub > .nav-link::after { display: none; }
    .burger { display: none; }
    .nav { display: block; width: auto; }
    .nav-list { flex-direction: row; align-items: center; gap: .35rem; padding: 0; }
    .nav-item { border-bottom: none; position: relative; }
    .nav-link { padding: .6rem .85rem; font-size: 1rem; }
    .nav-cta { margin: 0 0 0 .5rem; padding: .75rem 1.4rem; }

    .submenu {
        position: absolute;
        top: calc(100% + .4rem);
        left: 0;
        min-width: 280px;
        background: var(--white);
        border: 1px solid var(--hairline);
        border-radius: var(--radius);
        box-shadow: 0 18px 50px rgba(28, 23, 80, .14);
        padding: .6rem;
        margin: 0;
    }
    .nav-item.has-sub:hover > .submenu,
    .nav-item.has-sub:focus-within > .submenu { display: block; }

    /* Ponte invisibile sul varco tra voce e sottomenu: senza di questo,
       attraversando i .4rem di distacco l'hover del li si interrompe e
       il sottomenu scompare prima di poter selezionare una voce. */
    .submenu::before {
        content: "";
        position: absolute;
        top: -.55rem;
        left: 0;
        right: 0;
        height: .55rem;
    }
    .submenu a { padding: .65rem .85rem; border-radius: var(--radius-sm); }
    .submenu a:hover { background: var(--lavender-pale); text-decoration: none; }
}

/* =============================================================================
   BOTTONI
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover { text-decoration: none; }

.btn-lead   { background: var(--white); color: var(--indigo-deep); }
.btn-lead:hover { background: var(--lavender); }

.btn-ghost  { background: transparent; color: var(--white); border-color: var(--hairline-dark); }
.btn-ghost:hover { background: rgba(255,255,255,.09); border-color: var(--on-dark); }

.btn-solid  { background: var(--indigo); color: var(--white); }
.btn-solid:hover { background: var(--violet); }

.btn-line   { background: transparent; color: var(--indigo); border-color: var(--indigo); }
.btn-line:hover { background: var(--indigo); color: var(--white); }

.btn-row { display: flex; flex-wrap: wrap; gap: .85rem; }

/* =============================================================================
   HERO
   ============================================================================= */

/* Spazio superiore ridotto (~-48px su desktop): il contenuto sale come blocco
   unico, l'allineamento interno testo/immagine resta invariato. */
.hero { padding: clamp(3.25rem, 6vw, 5rem) 0 clamp(4rem, 8vw, 6.5rem); }
.hero h1 {
    margin-bottom: 1.75rem;
    max-width: 28ch;
    /* Target: "DAPI: la tua identita / verificata, prima che serva" su 2 righe
       a 1920px, massimo 3 a 1366px. Nessun <br> forzato.
       28ch accoglie la seconda riga (27 caratteri) senza wrap anticipato. */
    font-size: clamp(2.2rem, 3.1vw, 2.7rem);
}
.hero .lead { max-width: var(--measure-wide); margin-bottom: 2rem; }

.hero-gate {
    display: inline-block;
    font-family: var(--mono);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--white);
    background: rgba(122, 114, 212, .18);
    border-left: 3px solid var(--violet-soft);
    padding: .95rem 1.35rem;
    margin-bottom: 2.75rem;
    max-width: var(--measure-wide);
}

.hero .btn-row { margin-bottom: 3.5rem; }

/* Trust row: filo continuo, non quattro bottoni */
.trust {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    border-top: 1px solid var(--hairline-dark);
    max-width: 100%;
}
.trust-cell {
    padding: 1.15rem 0;
    border-bottom: 1px solid var(--hairline-dark);
    font-size: 1.0625rem;
    color: var(--on-dark);
    display: flex;
    align-items: baseline;
    gap: .75rem;
}
.trust-cell::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--violet-soft);
    flex-shrink: 0;
    transform: translateY(-2px);
}
@media (min-width: 720px) {
    .trust { grid-template-columns: repeat(2, 1fr); column-gap: 3rem; }
}
@media (min-width: 1100px) {
    .trust { grid-template-columns: repeat(4, 1fr); column-gap: 2.5rem; }
    .trust-cell { border-bottom: none; padding-right: 1rem; }
}

/* =============================================================================
   DIAGRAMMA CHIAVE (DAPI e la tua chiave per)
   ============================================================================= */

.keyviz { margin-top: clamp(2.5rem, 5vw, 4rem); }

.keyviz-core {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    background: var(--indigo-deep);
    color: var(--white);
    padding: 1.6rem 3rem;
    border-radius: var(--radius);
}
.keyviz-core strong { font-size: 1.9rem; letter-spacing: .04em; line-height: 1; }
.keyviz-core span { font-family: var(--mono); font-size: .8rem; letter-spacing: .14em; color: #EFEDFF; opacity: .92; }

.keyviz-stem {
    width: 2px;
    height: 44px;
    background: var(--hairline);
    margin: 0 0 0 clamp(1.5rem, 6vw, 4rem);
}

.keyviz-branches {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    border-top: 2px solid var(--hairline);
}
.keyviz-branch {
    padding: 1.75rem 0 1.75rem 1.5rem;
    border-bottom: 1px solid var(--hairline);
    position: relative;
}
.keyviz-branch::before {
    content: "";
    position: absolute;
    left: 0;
    top: 2.1rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--violet);
}
.keyviz-branch strong {
    display: block;
    font-size: 1.4rem;
    letter-spacing: -0.01em;
    margin-bottom: .2rem;
}
.keyviz-branch span { color: var(--ink-mute); font-size: var(--fs-small); }
.keyviz-branch.is-evide strong { color: var(--violet); }

@media (min-width: 900px) {
    .keyviz { display: grid; grid-template-columns: auto 1fr; gap: 4rem; align-items: start; }
    .keyviz-stem { display: none; }
    .keyviz-branches { border-top: none; }
    .keyviz-branch { border-bottom: none; padding: 1.4rem 0 1.4rem 2.5rem; border-left: 2px solid var(--hairline); }
    .keyviz-branch::before { left: -6px; top: 2rem; }
}

/* =============================================================================
   PERCORSI (tre card grandi)
   ============================================================================= */

.paths {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
}
@media (min-width: 940px) { .paths { grid-template-columns: repeat(3, 1fr); } }

.path {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    padding: clamp(2rem, 3.5vw, 2.75rem);
    background: var(--white);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
}
.path h3 { margin-bottom: .25rem; }
.path p { color: var(--ink-soft); font-size: var(--fs-small); flex-grow: 1; line-height: 1.65; }
.path .btn { align-self: flex-start; margin-top: .5rem; }

.path-evide {
    background: var(--indigo-deep);
    border-color: var(--indigo-deep);
}
.path-evide h3 { color: var(--white); }
.path-evide p { color: var(--on-dark); }
.path-evide .label { color: var(--violet-soft); }

/* =============================================================================
   MOMENTO EDITORIALE (Il problema non aspetta)
   ============================================================================= */

.statement {
    font-size: var(--fs-statement);
    line-height: 1.28;
    font-weight: 700;
    letter-spacing: -0.02em;
    max-width: none;
    color: var(--white);
}
.statement em { font-style: normal; color: var(--violet-soft); }

.timeline {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
    border-top: 1px solid var(--hairline-dark);
}
.timeline-step {
    padding: 1.4rem 0;
    border-bottom: 1px solid var(--hairline-dark);
}
.timeline-step .label { margin-bottom: .4rem; color: var(--on-dark-mute); }
.timeline-step strong { color: var(--white); font-size: 1.08rem; font-weight: 600; }
@media (min-width: 860px) {
    .timeline { grid-template-columns: repeat(4, 1fr); column-gap: 2rem; }
    .timeline-step { border-bottom: none; padding-right: 1rem; }
}

/* =============================================================================
   RAIL: elemento firma, catena di custodia visiva
   ============================================================================= */

.rail {
    list-style: none;
    margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
    padding-left: 2.25rem;
    position: relative;
}
.rail::before {
    content: "";
    position: absolute;
    left: 7px;
    top: .6rem;
    bottom: .6rem;
    width: 2px;
    background: var(--hairline);
}
.rail-node { position: relative; padding: 0 0 2rem 0; }
.rail-node:last-child { padding-bottom: 0; }
.rail-node::before {
    content: "";
    position: absolute;
    left: -2.25rem;
    top: .45rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--white);
    border: 2px solid var(--violet);
}
.rail-node span {
    font-family: var(--mono);
    font-size: var(--fs-label);
    letter-spacing: .14em;
    color: var(--ink-mute);
    display: block;
    margin-bottom: .3rem;
}
.rail-node strong { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em; }

/* Variante su fondo scuro */
.on-dark .rail::before { background: var(--hairline-dark); }
.on-dark .rail-node::before { background: var(--indigo-deep); border-color: var(--violet-soft); }
.on-dark .rail-node span { color: var(--on-dark-mute); }
.on-dark .rail-node strong { color: var(--white); }

/* Rail orizzontale su desktop per il processo biometrico */
@media (min-width: 1000px) {
    .rail-flow { padding-left: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.5rem; }
    .rail-flow::before { left: 8px; right: 8px; top: 8px; bottom: auto; height: 2px; width: auto; }
    .rail-flow .rail-node { padding: 2.5rem 0 0 0; }
    .rail-flow .rail-node::before { left: 0; top: 0; }
}

/* =============================================================================
   MESSAGGIO DI FIDUCIA GRANDE + BADGE
   ============================================================================= */

.assurance {
    font-size: var(--fs-statement);
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: -0.02em;
    max-width: none;
    margin-bottom: 1.5rem;
}
@media (min-width: 1020px) {
    .assurance { max-width: 88%; }
}

.guards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
    border-top: 1px solid var(--hairline);
}
.guard {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--hairline);
    font-size: 1.08rem;
    font-weight: 600;
    line-height: 1.4;
}
.guard .label { color: var(--ink-mute); margin-bottom: .45rem; }
@media (min-width: 900px) {
    .guards { grid-template-columns: repeat(4, 1fr); column-gap: 2.5rem; }
    .guard { border-bottom: none; padding-right: 1rem; }
}

.fineprint {
    margin-top: 2.5rem;
    max-width: none;
    background: var(--lavender);
    border: 1.5px solid rgba(83, 74, 183, .4);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.5rem, 3.5vw, 3rem);
}
.fineprint li {
    list-style: none;
    padding: .8rem 0 .8rem 2.2rem;
    position: relative;
    color: var(--ink-soft);
    font-size: var(--fs-body);
    line-height: 1.65;
}
.fineprint li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.35rem;
    width: 6px;
    height: 1px;
    background: var(--ink-mute);
}

/* =============================================================================
   DAPI + EVIDE (grande momento)
   ============================================================================= */

.relation { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 1000px) { .relation { grid-template-columns: 1.05fr .95fr; gap: 5rem; } }

.boundary {
    border-left: 3px solid var(--violet-soft);
    padding: .35rem 0 .35rem 1.75rem;
    margin: 2.25rem 0;
}
.boundary p { font-size: 1.2rem; font-weight: 600; line-height: 1.5; color: var(--white); }

.contrast {
    font-family: var(--mono);
    font-size: clamp(1rem, 2vw, 1.2rem);
    letter-spacing: .02em;
    color: var(--violet-soft);
    padding: 1.5rem 0;
    border-top: 1px solid var(--hairline-dark);
    border-bottom: 1px solid var(--hairline-dark);
    margin: 2rem 0;
}

.gate-note {
    font-family: var(--mono);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--white);
    background: rgba(122, 114, 212, .16);
    padding: 1.1rem 1.4rem;
    border-radius: var(--radius-sm);
    margin-top: 2rem;
}

/* =============================================================================
   ACCORDION
   ============================================================================= */

.qa { margin-top: clamp(2rem, 4vw, 3rem); }
.qa-item { border-bottom: 1px solid var(--hairline); }
.on-dark .qa-item { border-bottom-color: var(--hairline-dark); }

.qa-item summary {
    cursor: pointer;
    list-style: none;
    padding: 1.75rem 3rem 1.75rem 0;
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.45;
    position: relative;
    letter-spacing: -0.01em;
}
.qa-item summary::-webkit-details-marker { display: none; }
.qa-item summary::after {
    content: "";
    position: absolute;
    right: .5rem;
    top: 2.3rem;
    width: 16px;
    height: 3px;
    background: var(--indigo);
}
.qa-item summary::before {
    content: "";
    position: absolute;
    right: 1.15rem;
    top: 1.65rem;
    width: 3px;
    height: 16px;
    background: var(--indigo);
    transition: opacity .18s ease;
}
.qa-item[open] summary::before { opacity: 0; }
.on-dark .qa-item summary { color: var(--white); }
.on-dark .qa-item summary::after,
.on-dark .qa-item summary::before { background: #EFEDFF; }

.qa-item p {
    padding: 0 2rem 1.75rem 0;
    color: var(--ink-soft);
    max-width: var(--measure-wide);
    font-size: var(--fs-small);
    line-height: 1.7;
}
.on-dark .qa-item p { color: var(--on-dark); }

/* =============================================================================
   VIDEO
   ============================================================================= */

.reels {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap);
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
}
@media (min-width: 900px) { .reels { grid-template-columns: repeat(2, 1fr); } }
.reel {
    position: relative;
    padding-top: 56.25%;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--indigo-deep);
}
.reel iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* =============================================================================
   COSA PROTEGGE / A CHI SI RIVOLGE
   ============================================================================= */

.split { display: grid; grid-template-columns: 1fr; gap: clamp(3rem, 6vw, 5rem); }
@media (min-width: 1000px) { .split { grid-template-columns: 1fr 1.35fr; gap: 5rem; } }

.stack { list-style: none; }
.stack li {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--hairline);
}
.stack li:first-child { border-top: 1px solid var(--hairline); }
.stack strong { display: block; font-size: 1.3rem; letter-spacing: -0.01em; margin-bottom: .25rem; }
.stack span { color: var(--ink-mute); font-size: var(--fs-small); }

.audience { display: grid; grid-template-columns: 1fr; gap: 0; }
@media (min-width: 700px) { .audience { grid-template-columns: repeat(2, 1fr); column-gap: 3rem; } }
.audience li {
    list-style: none;
    padding: 1.4rem 0;
    border-bottom: 1px solid var(--hairline);
}
.audience strong { display: block; font-size: 1.1rem; margin-bottom: .2rem; }
.audience span { color: var(--ink-mute); font-size: var(--fs-small); line-height: 1.6; }

/* =============================================================================
   ECOSISTEMA (subordinato)
   ============================================================================= */

.adjacent {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--hairline);
}
@media (min-width: 780px) { .adjacent { grid-template-columns: repeat(2, 1fr); gap: 4rem; } }
.adjacent h4 { font-size: 1.1rem; color: var(--indigo); margin-bottom: .35rem; }
.adjacent p { color: var(--ink-mute); font-size: var(--fs-small); }

/* =============================================================================
   CHIUSURA
   ============================================================================= */

.closing { text-align: center; }
.closing h2 { max-width: 18ch; margin: 0 auto 2.5rem; }
.closing .btn-row { justify-content: center; }

/* =============================================================================
   FOOTER
   ============================================================================= */

.colophon {
    background: var(--indigo-deep);
    color: var(--on-dark-mute);
    padding: clamp(3.5rem, 7vw, 5rem) 0 2.5rem;
}
.colophon-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--hairline-dark);
}
@media (min-width: 780px) { .colophon-grid { grid-template-columns: 1.4fr 1fr; gap: 4rem; } }

.colophon-logo { height: 38px; margin-bottom: 1.25rem; filter: brightness(0) invert(1); opacity: .92; }
.colophon address { font-style: normal; font-size: var(--fs-small); line-height: 1.8; color: var(--on-dark-mute); }

.colophon-nav { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-content: start; }
.colophon-nav a { color: var(--on-dark); font-size: var(--fs-small); }
.colophon-nav a:hover { color: var(--white); }

.colophon-base { padding-top: 2rem; font-size: .95rem; color: var(--on-dark-mute); }

/* =============================================================================
   NOTA DI SVILUPPO (non destinata alla pubblicazione)
   ============================================================================= */

.devnote {
    margin-top: 2.5rem;
    padding: 1rem 1.25rem;
    border: 1px dashed var(--on-dark-mute);
    border-radius: var(--radius-sm);
    font-family: var(--mono);
    font-size: .82rem;
    line-height: 1.6;
    color: var(--on-dark-mute);
    max-width: var(--measure-wide);
}

/* Allineamenti della sezione di chiusura */
.closing .label { text-align: center; }
.closing .btn-row { justify-content: center; }

/* =============================================================================
   SECTION HEADING - componente landmark, apertura di capitolo
   Identita visiva condivisa da tutte le grandi sezioni.
   ============================================================================= */

.section-heading {
    margin-bottom: clamp(2.5rem, 5vw, 3.75rem);
    padding-top: clamp(.5rem, 1.5vw, 1rem);
    position: relative;
}

/* Filo d'accento: sottile, verticale, non decorativo ma di ancoraggio */
.section-heading::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 44px;
    height: 3px;
    background: var(--violet);
}

.section-heading .eyebrow {
    font-family: var(--mono);
    font-size: var(--fs-label);
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 500;
    display: block;
    margin: 1.5rem 0 1rem;
}

.section-heading h2 {
    font-size: var(--fs-h2);
    line-height: 1.08;
    letter-spacing: -0.03em;
    max-width: 30ch;
}

/* Sottotitolo di capitolo: gerarchia chiaramente inferiore al landmark */
.section-heading .subhead {
    font-size: clamp(1.2rem, 2.2vw, 1.6rem);
    line-height: 1.35;
    font-weight: 600;
    letter-spacing: -0.015em;
    color: var(--ink-soft);
    margin-top: .9rem;
    max-width: none;
}

/* Variante su fondo scuro: stessa identita, contrasto corretto */
.on-dark .section-heading::before { background: var(--violet-soft); }
.on-dark .section-heading .eyebrow { color: var(--lavender); opacity: .78; }
.on-dark .section-heading h2 { color: var(--white); }
.on-dark .section-heading .subhead { color: var(--on-dark); }

/* Variante centrata, per la chiusura */
.section-heading.is-centered { text-align: center; }
.section-heading.is-centered::before { left: 50%; transform: translateX(-50%); }
.section-heading.is-centered h2,
.section-heading.is-centered .subhead { margin-left: auto; margin-right: auto; }

/* =============================================================================
   AREA STATISTICHE - predisposta, nessun valore mostrato finche non verificato
   ============================================================================= */

.figures {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: clamp(3rem, 6vw, 4.5rem);
}
@media (min-width: 860px) {
    .figures { grid-template-columns: repeat(3, 1fr); column-gap: 3.5rem; }
}

.figure {
    padding: 1.75rem 0;
    border-top: 1px solid var(--hairline-dark);
}
.figure:last-child { border-bottom: 1px solid var(--hairline-dark); }
@media (min-width: 860px) {
    .figure:last-child { border-bottom: none; }
}

.figure-value {
    font-size: clamp(2.75rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--white);
    display: block;
    margin-bottom: .75rem;
}
.figure-desc {
    font-size: var(--fs-small);
    line-height: 1.55;
    color: var(--on-dark);
    margin-bottom: .85rem;
}
.figure-source {
    font-family: var(--mono);
    font-size: .875rem;
    letter-spacing: .08em;
    color: var(--on-dark-mute);
}
.figure-source a { color: var(--on-dark-mute); text-decoration: underline; text-underline-offset: 3px; }
.figure-source a:hover { color: var(--white); }

/* =============================================================================
   ELEMENTO ADIACENTE CLICCABILE (ecosistema)
   ============================================================================= */

.adjacent-link {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 1.25rem 1.5rem 1.25rem 0;
    margin: -1.25rem 0 -1.25rem -1.5rem;
    padding-left: 1.5rem;
    border-radius: var(--radius-sm);
    transition: background .18s ease;
}
.adjacent-link:hover { background: var(--lavender-pale); text-decoration: none; }
.adjacent-link:hover h4 { color: var(--violet); }
.adjacent-link h4::after {
    content: " \2197";
    font-size: .85em;
    color: var(--violet);
}

/* Blocco FAQ subordinato dentro una sezione landmark */
.qa-block { margin-top: clamp(3.5rem, 7vw, 5rem); }
.qa-block h3 {
    font-size: clamp(1.3rem, 2.4vw, 1.7rem);
    margin-bottom: .5rem;
}

/* La hero mantiene il suo eyebrow originale, non usa section-heading:
   e l'apertura della pagina, non un capitolo interno. */
.hero .label { color: var(--lavender); opacity: .85; letter-spacing: .18em; }

/* =============================================================================
   NUMERI DI SEZIONE (01-10) + ICONE
   ============================================================================= */

.section-heading.has-num {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: clamp(1.25rem, 3vw, 2.5rem);
    align-items: start;
}
.section-heading .num {
    font-size: clamp(3.4rem, 8vw, 5.75rem);
    font-weight: 700;
    line-height: .8;
    letter-spacing: -0.04em;
    color: var(--violet);
    opacity: .26;
    font-variant-numeric: tabular-nums;
    padding-top: .35rem;
    grid-row: 1 / span 3;
}
.on-dark .section-heading .num { color: var(--lavender); opacity: .28; }
.section-heading.has-num::before { left: 0; }
.section-heading.has-num .eyebrow { margin-top: 1.35rem; }
.section-heading.has-num h2 {
    font-size: clamp(2.15rem, 5.2vw, 3.9rem);
    letter-spacing: -0.035em;
}
.section-heading.has-num .subhead {
    font-size: clamp(1.25rem, 2.4vw, 1.7rem);
}

.icon { display: block; margin: 0; flex-shrink: 0; }

/* Cerchio icona: usato in catene, timeline, relazione */
.icon-ring {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    border: 1.5px solid var(--violet);
    color: var(--violet);
    background: var(--white);
    flex-shrink: 0;
}
.on-dark .icon-ring {
    border-color: var(--violet-soft);
    color: var(--lavender);
    background: rgba(122, 114, 212, .12);
}

/* Icone nei rami del diagramma chiave */
.keyviz-branch { display: grid; grid-template-columns: auto 1fr; column-gap: 1.1rem; align-items: start; }
.keyviz-branch .icon-ring { width: 46px; height: 46px; margin-top: .15rem; }
.keyviz-branch > div { min-width: 0; }

/* Icone nelle card percorso */
.path .icon-ring { width: 54px; height: 54px; margin-bottom: .35rem; }
.path-evide .icon-ring { border-color: var(--violet-soft); color: var(--lavender); background: rgba(122,114,212,.14); }

/* Timeline con icone */
.timeline-step .icon-ring { margin-bottom: 1rem; }

/* Rail con icone al posto dei punti vuoti */
.rail-icons { padding-left: 0; }
.rail-icons::before { left: 28px; }
.rail-icons .rail-node { padding-left: 4.75rem; }
.rail-icons .rail-node::before { display: none; }
.rail-icons .rail-node .icon-ring { position: absolute; left: 0; top: 0; }
@media (min-width: 1000px) {
    /* Anello 58px: centro geometrico a 29px. La linea (2px, da 28 a 30) passa per il centro.
       5 colonne uguali: i centri dei nodi cadono a 10% / 30% / 50% / 70% / 90%,
       quindi la linea parte e termina sotto il primo e l'ultimo anello. */
    .rail-flow.rail-icons::before { left: 10%; right: 10%; top: 28px; }
    .rail-flow.rail-icons .rail-node { padding: 4.6rem .5rem 0; text-align: center; }
    .rail-flow.rail-icons .rail-node .icon-ring { left: 50%; top: 0; transform: translateX(-50%); }
}

/* Garanzie con icona */
.guard { display: grid; grid-template-columns: auto 1fr; column-gap: 1rem; align-items: start; }
.guard .icon { color: var(--violet); margin-top: .2rem; }
.guard > div { min-width: 0; }

/* Fineprint con spunta: icona allineata al centro della prima riga */
.fineprint li::before { display: none; }
.fineprint li .icon {
    position: absolute;
    left: 0;
    top: calc(.8rem + .45em);
    color: var(--violet);
}

/* Relazione TU / DAPI / EVIDE con icone cerchiate */
.relay { list-style: none; margin-top: .5rem; }
.relay-node {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 1.25rem;
    align-items: start;
    position: relative;
    padding-bottom: 2.25rem;
}
.relay-node:last-child { padding-bottom: 0; }
.relay-node::before {
    content: "";
    position: absolute;
    left: 28px;
    top: 62px;
    bottom: 4px;
    width: 2px;
    background: var(--hairline-dark);
}
.relay-node:last-child::before { display: none; }
.relay-node > div { padding-top: .3rem; min-width: 0; }
.relay-node .kicker {
    font-family: var(--mono);
    font-size: var(--fs-label);
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--on-dark-mute);
    display: block;
    margin-bottom: .25rem;
}
.relay-node strong { color: var(--white); font-size: 1.35rem; letter-spacing: -0.01em; }
.relay-node p { font-size: 1rem; margin-top: .3rem; color: var(--on-dark); }

/* Ecosistema con icona a destra */
.adjacent > *, .adjacent-link {
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 1.5rem;
    align-items: center;
}
.adjacent .icon-ring { grid-row: 1 / span 2; }
.adjacent h4, .adjacent p { grid-column: 1; }

/* =============================================================================
   HERO: due colonne REALI. L'immagine vive nel proprio contenitore di griglia:
   la sovrapposizione con il testo e strutturalmente impossibile.
   Niente position:absolute, niente offset negativi, niente larghezze in vw.
   ============================================================================= */

/* Mobile (default): colonna singola. Ordine dato dal sorgente:
   eyebrow -> H1 -> lead -> ILLUSTRAZIONE -> box EVIDE -> CTA -> trust */
.hero-grid { display: grid; grid-template-columns: 1fr; }

/* Contenitore-inquadratura: l'immagine verticale e volutamente piu larga
   del necessario; il container ritaglia (overflow hidden) senza deformare.
   Il punto (56%, y%) dell'immagine viene ancorato al centro del container:
   scudo protagonista, icone laterali e base luminosa incluse nel taglio. */
.hero-visual {
    justify-self: center;
    width: min(88vw, 420px);
    aspect-ratio: 4 / 5;
    margin: 1rem 0 1.75rem;
    position: relative;
    overflow: hidden;
}
.hero-visual img {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 133%;
    height: auto;
    max-width: none;
    transform: translate(-56%, -62%);
    display: block;
}

/* Desktop: colonna testo | canale 4% | colonna immagine.
   minmax(0, ...) impedisce alle colonne di crescere oltre la propria quota. */
@media (min-width: 1020px) {
    .hero .shell { max-width: 1340px; }
    .hero-grid {
        /* testo 54% | canale 4% | visual 42% (entro le proporzioni indicate) */
        grid-template-columns: minmax(0, 54fr) minmax(0, 42fr);
        column-gap: 4%;
        grid-template-areas:
            "eyebrow visual"
            "title   visual"
            "lead    visual"
            "gate    visual"
            "cta     visual";
        align-items: start;
    }
    .hero-eyebrow { grid-area: eyebrow; }
    .hero-title   { grid-area: title; }
    .hero-lead    { grid-area: lead; }
    .hero-gate    { grid-area: gate; align-self: start; }
    .hero-cta     { grid-area: cta; align-self: start; }
    .hero-visual {
        grid-area: visual;
        align-self: center;
        justify-self: center;
        width: 100%;
        max-width: 560px;
        aspect-ratio: 3 / 4;
        max-height: 700px;
        margin: 0;
    }
    .hero-visual img {
        width: 141%;
        transform: translate(-56%, -62%);
    }

    /* La trust row resta fascia bassa, staccata dal blocco principale */
    .hero .trust { margin-top: clamp(3rem, 6vw, 4.5rem); }
}

/* Tagline nel footer */
.colophon-tagline {
    color: var(--on-dark);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: .75rem;
    letter-spacing: -0.01em;
}


/* =============================================================================
   PALETTE VIOLA - testo su superfici scure: lavanda quasi bianca (#EFEDFF),
   il bianco puro resta solo per CTA primarie e piccoli elementi di contrasto.
   ============================================================================= */
.on-dark h1, .on-dark h2, .on-dark h3,
.band-deep h1, .band-deep h2, .band-deep h3,
.on-dark .statement,
.on-dark .relay-node strong,
.on-dark .boundary p,
.on-dark .qa-item summary,
.on-dark .figure-value,
.on-dark .hero-gate,
.on-dark .gate-note,
.on-dark .timeline-step strong,
.on-dark .rail-node strong {
    color: #EFEDFF;
}
.btn-ghost { color: #EFEDFF; }

/* =============================================================================
   PASS FINALE HOME - nuovi componenti
   ============================================================================= */

/* 1A. Rami del diagramma cliccabili: hover/focus discreto, non bottoni */
a.keyviz-branch { color: inherit; text-decoration: none; }
a.keyviz-branch:hover { text-decoration: none; }
a.keyviz-branch:hover strong,
a.keyviz-branch:focus-visible strong {
    color: var(--violet);
    text-decoration: underline;
    text-underline-offset: 4px;
}
a.keyviz-branch:hover .icon-ring {
    border-color: var(--indigo);
    color: var(--indigo);
}

/* 3B. Blocco editoriale deepfake (interno alla sezione 03, fondo scuro) */
.focus-block { margin-top: clamp(3.5rem, 7vw, 5.5rem); }
.focus-block h3 {
    font-size: clamp(1.6rem, 3.1vw, 2.35rem);
    line-height: 1.15;
    color: #EFEDFF;
    max-width: none;
    margin-bottom: 1.5rem;
}
.focus-block > p {
    color: var(--on-dark);
    max-width: none;
    margin-bottom: 1.1rem;
    font-size: var(--fs-lead);
    line-height: 1.6;
}
@media (min-width: 1020px) {
    .focus-block > p { max-width: 88%; }
}
.focus-callout {
    font-size: clamp(1.4rem, 2.6vw, 1.9rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    color: #EFEDFF !important;
    border-left: 3px solid var(--violet-soft);
    padding: .4rem 0 .4rem 1.5rem;
    margin: 2rem 0 !important;
    max-width: min(60rem, 100%);
}
.threat-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2.25rem;
}
@media (min-width: 860px) { .threat-grid { grid-template-columns: repeat(3, 1fr); gap: 2.5rem; } }
.threat { border-top: 2px solid rgba(238, 237, 255, .3); padding-top: 1.2rem; }
.threat strong {
    display: block;
    color: #EFEDFF;
    font-size: 1.2rem;
    letter-spacing: -0.01em;
    margin-bottom: .45rem;
}
.threat p { color: var(--on-dark); font-size: var(--fs-small); line-height: 1.6; }

/* 5A. Nodo EVIDE cliccabile nel relay */
.relay-link {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 1.25rem;
    align-items: start;
    color: inherit;
    text-decoration: none;
}
.relay-link > div { padding-top: .3rem; min-width: 0; }
.relay-link:hover strong,
.relay-link:focus-visible strong {
    text-decoration: underline;
    text-underline-offset: 4px;
}
.relay-link:hover .icon-ring { border-color: #EFEDFF; }

/* 7. Due macro-card distinte */
.macro-card {
    background: var(--lavender-pale);
    border: 1.5px solid rgba(83, 74, 183, .45);
    border-radius: var(--radius);
    padding: clamp(1.75rem, 3.5vw, 2.75rem);
}
.macro-title {
    font-size: clamp(1.2rem, 2vw, 1.45rem);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--indigo);
    margin-bottom: 1.25rem;
}
.macro-card .stack li:first-child { border-top: none; padding-top: .25rem; }
.macro-card .audience li:first-child { padding-top: .25rem; }