/* ==========================================================================
   Engineering Controls – landing istituzionale
   Direzione: tavola tecnica. Blu notte, blu del marchio e bianco a blocchi
   pieni; Inter 800 per i titoli, Inter 100 per numeri e anni giganti.
   Indice: 1 Font · 2 Variabili · 3 Base · 4 Pulsanti · 5 Header · 6 Hero
   7 Fascia foto · 8 Sezioni · 9 Chi siamo · 10 Competenze · 11 Destinatari
   12 Lavori · 13 Autorizzazioni · 14 Passaggi · 15 FAQ · 16 Modulistica
   17 Contatti e modulo · 18 Footer · 19 Barra mobile · 20 Placeholder
   21 Movimento · 22 Responsive · 23 Stampa
   ========================================================================== */

/* 1. Font locale (Inter variabile, licenza SIL OFL 1.1) ------------------- */
@font-face {
    font-family: "Inter";
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url("../fonts/inter-latin-wght.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* 2. Variabili ------------------------------------------------------------ */
:root {
    color-scheme: light;

    /* Colori del marchio */
    --c-blue: #007AC2;
    --c-blue-strong: #00639E;
    --c-blue-deep: #004E7D;
    --c-sky: #2D9BD7;
    --c-grey: #706F6F;

    /* Blu notte (variante scura del blu del marchio) */
    --c-navy: #022337;
    --c-navy-2: #06324F;
    --c-navy-line: rgba(255, 255, 255, 0.16);

    /* Neutri */
    --c-ink: #121A21;
    --c-ink-soft: #46515A;
    --c-bg: #FFFFFF;
    --c-paper: #EFF3F6;
    --c-line: #D5DDE4;
    --c-line-strong: #A9B5BF;

    /* Testi su fondi scuri */
    --c-on-dark: #FFFFFF;
    --c-on-dark-soft: #BFD3E2;
    --c-on-dark-link: #9ED5F7;

    /* Stati */
    --c-error: #B42318;
    --c-error-bg: #FDF1F0;
    --c-success: #146C43;
    --c-success-bg: #EDF7F1;
    --c-focus: #00639E;

    /* Tipografia */
    --font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    --fs-small: 0.875rem;
    --fs-base: 1.0625rem;
    --fs-lead: clamp(1.25rem, 1.05rem + 0.8vw, 1.75rem);
    --fs-h3: clamp(1.3125rem, 1.1rem + 0.7vw, 1.75rem);
    --fs-h2: clamp(2.125rem, 1.3rem + 3vw, 3.75rem);
    --fs-h2-xl: clamp(2.5rem, 1.2rem + 5.2vw, 6rem);
    --fs-h1: clamp(2.75rem, 1rem + 5vw, 6.25rem);

    /* Spazi e forme */
    --container: 82rem;
    --gutter: clamp(1.25rem, 4vw, 3rem);
    --section-y: clamp(5rem, 11vw, 10rem);
    --radius-s: 3px;
    --radius-m: 6px;
    --header-h: 84px;
    --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* 3. Base ----------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
    margin: 0;
    font-family: var(--font);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--c-ink);
    background: var(--c-bg);
    font-feature-settings: "cv11", "ss01";
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { margin: 0; line-height: 1.1; color: inherit; }
p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; }
address { font-style: normal; }

a { color: var(--c-blue-deep); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
/* Telefono ed email non vanno mai a capo a metà */
a[href^="tel:"],
a[href^="mailto:"],
.nowrap { white-space: nowrap; }
a:hover { color: var(--c-blue-strong); text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--c-focus); outline-offset: 3px; border-radius: 2px; }
main:focus { outline: none; }

.container {
    width: 100%;
    max-width: calc(var(--container) + var(--gutter) * 2);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.skip-link {
    position: absolute;
    left: 1rem;
    top: -100px;
    z-index: 100;
    padding: 0.75rem 1.25rem;
    background: var(--c-ink);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-s);
    text-decoration: none;
}
.skip-link:focus { top: 1rem; color: #fff; }

/* 4. Pulsanti e link ------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.75rem 1.375rem;
    border: 1.5px solid transparent;
    border-radius: var(--radius-s);
    font: inherit;
    font-size: 0.9375rem;
    font-weight: 650;
    line-height: 1.25;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.btn:hover { text-decoration: none; }
.btn--lg { min-height: 56px; padding: 1rem 1.75rem; font-size: 1.0625rem; }

.btn--primary { background: var(--c-blue); color: #fff; }
.btn--primary:hover { background-color: var(--c-blue-strong); color: #fff; }
.btn--primary:active { background-color: var(--c-blue-deep); }

.btn--ghost { border-color: var(--c-ink); color: var(--c-ink); }
.btn--ghost:hover { background: var(--c-ink); color: #fff; }

.btn--ghost-light { border-color: rgba(255, 255, 255, 0.55); color: #fff; }
.btn--ghost-light:hover { background: #fff; border-color: #fff; color: var(--c-navy); }

.btn--light { background: #fff; color: var(--c-navy); }
.btn--light:hover { background: var(--c-navy); color: #fff; }

.text-link { font-weight: 650; color: var(--c-blue-deep); }

/* 5. Header e menu ------------------------------------------------------- */
/* Header blu notte con reticolo, come la hero.
   Il logo resta sui colori originali dentro un cartiglio chiaro,
   come il riquadro del titolo nelle tavole tecniche. */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: var(--c-navy);
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 24px 24px;
    border-bottom: 1px solid var(--c-navy-line);
    color: #fff;
    transition: box-shadow 0.3s var(--ease), background-color 0.3s var(--ease);
}
.site-header.is-scrolled {
    background-color: rgba(2, 35, 55, 0.96);
    box-shadow: 0 14px 34px -20px rgba(0, 10, 20, 0.8);
}
@supports (backdrop-filter: blur(10px)) {
    .site-header.is-scrolled { background-color: rgba(2, 35, 55, 0.88); backdrop-filter: saturate(140%) blur(10px); }
}
.site-header :focus-visible { outline-color: #fff; }

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem 2rem;
    min-height: 84px;
    padding-block: 0.625rem;
    transition: min-height 0.35s var(--ease), padding 0.35s var(--ease);
}
.site-header.is-compact .site-header__inner { min-height: 66px; padding-block: 0.375rem; }

.brand {
    position: relative;
    display: inline-flex;
    flex-shrink: 0;
    padding: 0.4375rem 0.875rem;
    background: #fff;
    border-radius: var(--radius-s);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35), 0 10px 24px -14px rgba(0, 0, 0, 0.6);
    transition: padding 0.35s var(--ease);
}
/* Segni di quota agli angoli del cartiglio */
.brand::before,
.brand::after {
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    border: 0 solid var(--c-sky);
    pointer-events: none;
}
.brand::before { top: -6px; left: -6px; border-top-width: 2px; border-left-width: 2px; }
.brand::after { bottom: -6px; right: -6px; border-bottom-width: 2px; border-right-width: 2px; }
.site-header.is-compact .brand { padding: 0.3125rem 0.75rem; }
.brand__logo {
    height: 52px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
    transition: height 0.35s var(--ease);
}
.site-header.is-compact .brand__logo { height: 40px; }

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.site-nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); }
.site-nav__track { position: static; }
.site-nav__list { display: flex; flex-wrap: wrap; align-items: center; gap: 0.125rem; list-style: none; }
.site-nav__item { display: flex; align-items: center; }

.site-nav__link {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.125rem;
    padding: 0.5rem 0.75rem 0.625rem;
    border-radius: var(--radius-s);
    color: #fff;
    text-decoration: none;
    transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.site-nav__num {
    font-size: 0.625rem;
    font-weight: 650;
    letter-spacing: 0.1em;
    line-height: 1;
    color: rgba(143, 208, 245, 0.55);
    font-variant-numeric: tabular-nums;
    transition: color 0.2s var(--ease), transform 0.25s var(--ease);
}
.site-nav__label { font-size: 0.9375rem; font-weight: 600; line-height: 1.2; white-space: nowrap; }
.site-nav__link:hover,
.site-nav__link[aria-current="true"] { color: var(--c-on-dark-link); }
.site-nav__link:hover .site-nav__num,
.site-nav__link[aria-current="true"] .site-nav__num { color: var(--c-sky); transform: translateY(-2px); }

/* Quota che scorre sotto la voce attiva o puntata */
.site-nav__indicator {
    position: absolute;
    left: 0;
    top: 0;
    width: var(--w, 0);
    height: 9px;
    transform: translate(var(--x, 0), var(--y, 0));
    background:
        linear-gradient(var(--c-sky), var(--c-sky)) center / 100% 2px no-repeat,
        linear-gradient(var(--c-sky), var(--c-sky)) left / 2px 100% no-repeat,
        linear-gradient(var(--c-sky), var(--c-sky)) right / 2px 100% no-repeat;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s var(--ease), width 0.4s var(--ease), opacity 0.25s var(--ease);
}
.site-nav__track.has-indicator .site-nav__indicator { opacity: 1; }

/* Pulsante del pannello Competenze */
.site-nav__more {
    display: inline-grid;
    place-items: center;
    width: 26px;
    height: 26px;
    margin-left: -0.375rem;
    padding: 0;
    background: transparent;
    border: 0;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.site-nav__more::before {
    content: "";
    width: 7px;
    height: 7px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform 0.3s var(--ease);
}
.site-nav__more:hover { background: rgba(255, 255, 255, 0.1); color: var(--c-on-dark-link); }
.has-panel.is-open .site-nav__more::before { transform: translateY(2px) rotate(-135deg); }

/* Pannello a tutta larghezza con le sei aree */
.mega {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background-color: var(--c-navy-2);
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 24px 24px;
    border-top: 1px solid var(--c-navy-line);
    border-bottom: 3px solid var(--c-sky);
    box-shadow: 0 34px 60px -30px rgba(0, 10, 20, 0.85);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.25s var(--ease), transform 0.3s var(--ease), visibility 0s 0.3s;
}
.has-panel.is-open .mega {
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: opacity 0.25s var(--ease), transform 0.3s var(--ease), visibility 0s;
}
@media (hover: hover) and (min-width: 1061px) {
    .has-panel:hover .mega {
        visibility: visible;
        opacity: 1;
        transform: none;
        transition: opacity 0.25s var(--ease) 0.08s, transform 0.3s var(--ease) 0.08s, visibility 0s 0.08s;
    }
    .has-panel:hover .site-nav__more::before { transform: translateY(2px) rotate(-135deg); }
    /* Ponte invisibile tra la voce e il pannello */
    .has-panel .site-nav__link::before {
        content: "";
        position: absolute;
        left: 0;
        right: -2rem;
        top: 100%;
        height: 2rem;
    }
}
.mega__inner {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
    gap: 2rem;
    padding-block: 1.75rem 2rem;
}
.mega__list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.25rem; list-style: none; }
.mega__link {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 0.875rem;
    row-gap: 0.25rem;
    align-content: start;
    height: 100%;
    padding: 1rem;
    border-radius: var(--radius-m);
    color: #fff;
    text-decoration: none;
    transition: background-color 0.2s var(--ease);
}
.mega__num {
    grid-row: span 2;
    font-size: 2rem;
    font-weight: 100;
    line-height: 0.9;
    letter-spacing: -0.04em;
    color: var(--c-sky);
    font-variant-numeric: tabular-nums;
    transition: transform 0.3s var(--ease);
}
.mega__title { font-size: 1rem; font-weight: 750; line-height: 1.25; letter-spacing: -0.015em; }
.mega__tests { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; font-size: 0.8125rem; line-height: 1.45; color: var(--c-on-dark-soft); }
.mega__link:hover { background: rgba(255, 255, 255, 0.07); color: #fff; }
.mega__link:hover .mega__num { transform: translateX(3px); }
.mega__link:hover .mega__title { color: var(--c-on-dark-link); }
.mega__aside {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1.5rem;
    background: var(--c-blue);
    border-radius: var(--radius-m);
    color: #E6F3FB;
    font-size: 0.9375rem;
}
.mega__aside p { margin: 0; }
.mega__aside-title { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.025em; line-height: 1.15; color: #fff; }
.mega__aside .btn { margin-top: auto; }
.mega__aside :focus-visible { outline-color: #fff; }

@media (prefers-reduced-motion: no-preference) {
    .mega__list li { opacity: 0; transform: translateY(8px); transition: opacity 0.35s var(--ease), transform 0.35s var(--ease); }
    .has-panel.is-open .mega__list li { opacity: 1; transform: none; }
    .has-panel.is-open .mega__list li:nth-child(2), .has-panel.is-open .mega__list li:nth-child(5) { transition-delay: 0.04s; }
    .has-panel.is-open .mega__list li:nth-child(3), .has-panel.is-open .mega__list li:nth-child(6) { transition-delay: 0.08s; }
}
@media (prefers-reduced-motion: no-preference) and (hover: hover) and (min-width: 1061px) {
    .has-panel:hover .mega__list li { opacity: 1; transform: none; }
    .has-panel:hover .mega__list li:nth-child(2), .has-panel:hover .mega__list li:nth-child(5) { transition-delay: 0.12s; }
    .has-panel:hover .mega__list li:nth-child(3), .has-panel:hover .mega__list li:nth-child(6) { transition-delay: 0.16s; }
}

/* Telefono e CTA a destra */
.site-nav__end { display: flex; align-items: center; gap: 1.25rem; }
.site-nav__phone {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    color: #fff;
    text-decoration: none;
}
.site-nav__phone-label { font-size: 0.6875rem; font-weight: 650; color: var(--c-sky); }
.site-nav__phone-number { font-size: 0.9375rem; font-weight: 750; letter-spacing: -0.01em; white-space: nowrap; }
.site-nav__phone:hover { color: var(--c-on-dark-link); }
.site-nav__cta { min-height: 44px; padding-block: 0.5rem; }
.site-nav__mobile-foot { display: none; }
.nav-toggle { display: none; }

/* Il telefono compare solo nel menu mobile (in header desktop è nascosto) */
.site-nav__phone { display: none; }
@media (max-width: 1180px) {
    .site-nav__link { padding-inline: 0.5rem; }
    .site-nav__num { display: none; }
}

/* Menu mobile: pannello a tutto schermo (solo con JavaScript) */
@media (max-width: 1060px) {
    .js .nav-toggle {
        display: inline-flex;
        align-items: center;
        gap: 0.625rem;
        min-height: 44px;
        padding: 0.5rem 0.875rem;
        background: transparent;
        border: 1.5px solid rgba(255, 255, 255, 0.6);
        border-radius: var(--radius-s);
        font: inherit;
        font-size: 0.9375rem;
        font-weight: 650;
        color: #fff;
        cursor: pointer;
        transition: background-color 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
    }
    .js .nav-toggle[aria-expanded="true"] { background: #fff; border-color: #fff; color: var(--c-navy); }
    .nav-toggle__bars,
    .nav-toggle__bars::before,
    .nav-toggle__bars::after {
        display: block;
        width: 18px;
        height: 2px;
        background: currentColor;
        transition: transform 0.3s var(--ease), background-color 0.2s;
    }
    .nav-toggle__bars { position: relative; }
    .nav-toggle__bars::before,
    .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
    .nav-toggle__bars::before { top: -6px; }
    .nav-toggle__bars::after { top: 6px; }
    .nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
    .nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

    .js .site-nav {
        position: fixed;
        top: var(--nav-top, var(--header-h));
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 49;
        flex-direction: column;
        align-items: stretch;
        justify-content: space-between;
        gap: 2rem;
        padding: 1rem var(--gutter) calc(1.5rem + env(safe-area-inset-bottom, 0px));
        overflow-y: auto;
        overscroll-behavior: contain;
        background-color: var(--c-navy);
        background-image:
            linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
            linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
        background-size: 24px 24px;
        border-top: 1px solid var(--c-navy-line);
        color: #fff;
        visibility: hidden;
        clip-path: inset(0 0 100% 0);
        transition: clip-path 0.5s var(--ease), visibility 0s 0.5s;
    }
    .js .site-nav.is-open {
        visibility: visible;
        clip-path: inset(0 0 0 0);
        transition: clip-path 0.5s var(--ease), visibility 0s;
    }
    .js .site-nav :focus-visible { outline-color: #fff; }
    .js .site-nav__track { width: 100%; }
    .js .site-nav__indicator,
    .js .site-nav__more,
    .js .mega { display: none; }
    .js .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
    .js .site-nav__item { border-bottom: 1px solid var(--c-navy-line); }
    .js .site-nav__link {
        flex: 1;
        flex-direction: row;
        align-items: baseline;
        gap: 1rem;
        padding: 0.875rem 0;
        color: #fff;
    }
    .js .site-nav__num { display: block; font-size: 0.8125rem; color: var(--c-sky); }
    .js .site-nav__label { font-size: clamp(1.75rem, 1.2rem + 3vw, 2.5rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.1; }
    .js .site-nav__link:hover,
    .js .site-nav__link[aria-current="true"] { color: var(--c-on-dark-link); }
    .js .site-nav__link:hover .site-nav__num { color: var(--c-on-dark-link); transform: none; }

    .js .site-nav__end { flex-direction: column; align-items: stretch; gap: 1.25rem; }
    .js .site-nav__phone { display: flex; color: #fff; }
    .js .site-nav__phone-label { color: var(--c-sky); font-size: 0.8125rem; }
    .js .site-nav__phone-number { font-size: clamp(1.75rem, 1.2rem + 3vw, 2.5rem); font-weight: 800; letter-spacing: -0.035em; }
    .js .site-nav__cta { width: 100%; min-height: 52px; }
    .js .site-nav__mobile-foot {
        display: flex;
        flex-direction: column;
        gap: 0.25rem;
        padding-top: 1.25rem;
        border-top: 1px solid var(--c-navy-line);
        font-size: 0.875rem;
        color: var(--c-on-dark-soft);
    }
    .js .site-nav__mobile-foot a { color: #fff; }
    html.menu-open,
    html.menu-open body { overflow: hidden; }
    html.menu-open .quickbar { transform: translateY(110%); }

    @media (prefers-reduced-motion: no-preference) {
        .js .site-nav__item,
        .js .site-nav__end,
        .js .site-nav__mobile-foot {
            opacity: 0;
            transform: translateY(18px);
            transition: opacity 0.4s var(--ease), transform 0.5s var(--ease);
        }
        .js .site-nav.is-open .site-nav__item,
        .js .site-nav.is-open .site-nav__end,
        .js .site-nav.is-open .site-nav__mobile-foot { opacity: 1; transform: none; }
        .js .site-nav.is-open .site-nav__item { transition-delay: calc(0.12s + var(--ni, 0) * 0.05s); }
        .js .site-nav.is-open .site-nav__end { transition-delay: 0.45s; }
        .js .site-nav.is-open .site-nav__mobile-foot { transition-delay: 0.52s; }
    }

    /* Senza JavaScript: elenco dei link sotto il logo */
    html:not(.js) .site-nav { width: 100%; flex-wrap: wrap; gap: 0.75rem 1.5rem; padding-bottom: 0.5rem; }
    html:not(.js) .mega,
    html:not(.js) .site-nav__more,
    html:not(.js) .site-nav__indicator { display: none; }
}

@media (max-width: 760px) {
    .site-header__inner,
    .site-header.is-compact .site-header__inner { min-height: 68px; }
    .brand,
    .site-header.is-compact .brand { padding: 0.3125rem 0.625rem; }
    .brand__logo,
    .site-header.is-compact .brand__logo { height: 40px; max-width: 200px; }
}
/* 6. Hero ---------------------------------------------------------------- */
.hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(3.5rem, 8vw, 7rem) 0;
    background-color: var(--c-navy);
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
        linear-gradient(to right, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
    color: var(--c-on-dark);
}

.hero__grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.hero__kicker {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-bottom: 2rem;
    color: var(--c-sky);
    font-size: 0.8125rem;
    font-weight: 650;
    letter-spacing: 0.14em;
}
.hero__kicker::before {
    content: "";
    width: 40px;
    height: 11px;
    flex-shrink: 0;
    background:
        linear-gradient(var(--c-sky), var(--c-sky)) center / 100% 2px no-repeat,
        linear-gradient(var(--c-sky), var(--c-sky)) left / 2px 100% no-repeat,
        linear-gradient(var(--c-sky), var(--c-sky)) right / 2px 100% no-repeat;
}

.hero__title {
    max-width: 14ch;
    font-size: var(--fs-h1);
    font-weight: 800;
    line-height: 0.98;
    letter-spacing: -0.038em;
    text-wrap: balance;
    color: #fff;
}

.hero__lead {
    max-width: 26ch;
    margin: clamp(1.75rem, 3vw, 2.5rem) 0 1rem;
    font-size: var(--fs-lead);
    font-weight: 600;
    line-height: 1.3;
    color: #fff;
    text-wrap: balance;
}
.hero__body { max-width: 56ch; color: var(--c-on-dark-soft); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.875rem; margin-top: 2.25rem; }

.hero :focus-visible { outline-color: #fff; }

/* Tavola tecnica */
.hero__drawing { position: relative; }
.drawing { width: 100%; height: auto; max-height: 72vh; overflow: visible; }
.drawing .d-main { fill: none; stroke: #8FD0F5; stroke-width: 1.6; }
.drawing .d-thin { fill: none; stroke: rgba(191, 211, 226, 0.6); stroke-width: 1; }
.drawing .d-dim { fill: none; stroke: #fff; stroke-width: 1; }
.drawing .d-axis { fill: none; stroke: rgba(143, 208, 245, 0.55); stroke-width: 1; stroke-dasharray: 18 5 3 5; }
.drawing .d-hatch { stroke: rgba(143, 208, 245, 0.35); stroke-width: 1.2; }
.drawing .d-fill { fill: url(#tratteggio); }
.drawing .d-arrowhead { fill: #fff; }
.drawing .d-label { fill: #fff; font: 600 15px var(--font); letter-spacing: 0.04em; }
.drawing .d-label--on { paint-order: stroke; stroke: var(--c-navy); stroke-width: 6px; }

/* Marchio 35 anni: sigillo su quadrante graduato, appoggiato alla tavola tecnica */
.hero__seal {
    position: absolute;
    left: -4%;
    bottom: 4%;
    width: clamp(110px, 11vw, 168px);
    aspect-ratio: 1;
    padding: clamp(10px, 1vw, 14px);
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 0 6px rgba(2, 35, 55, 0.9), 0 18px 40px -16px rgba(0, 0, 0, 0.7);
}
.hero__seal img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: contain; transition: transform 0.5s var(--ease); }
.hero__seal { transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease); }
.hero__seal:hover { transform: scale(1.06); }
.hero__seal:hover img { transform: rotate(-8deg); }
/* Quadrante graduato attorno al sigillo */
.hero__seal::before {
    content: "";
    position: absolute;
    inset: -16px;
    border-radius: 50%;
    background: repeating-conic-gradient(var(--c-sky) 0 0.9deg, transparent 0.9deg 6deg);
    -webkit-mask: radial-gradient(circle closest-side, transparent calc(100% - 10px), #000 calc(100% - 9px), #000 calc(100% - 1px), transparent 100%);
    mask: radial-gradient(circle closest-side, transparent calc(100% - 10px), #000 calc(100% - 9px), #000 calc(100% - 1px), transparent 100%);
    opacity: 0.9;
    pointer-events: none;
}
.hero__seal::after {
    content: "";
    position: absolute;
    inset: -22px;
    border-radius: 50%;
    border: 1px solid rgba(143, 208, 245, 0.45);
    pointer-events: none;
}

/* Fascia di fiducia: tre pannelli in evidenza sul fondo blu notte */
.trust {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
    margin-top: clamp(3.5rem, 7vw, 6rem);
    padding-bottom: clamp(2.5rem, 5vw, 4rem);
    list-style: none;
}
.trust__item {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: clamp(1.5rem, 2.5vw, 2.25rem);
    background: linear-gradient(180deg, rgba(0, 122, 194, 0.32) 0%, rgba(6, 50, 79, 0.85) 100%);
    border: 1px solid rgba(143, 208, 245, 0.28);
    border-top: 4px solid var(--c-sky);
    border-radius: var(--radius-m);
    box-shadow: 0 24px 50px -30px rgba(0, 0, 0, 0.7);
}
/* Righello sul bordo superiore */
.trust__item::before {
    content: "";
    position: absolute;
    left: clamp(1.5rem, 2.5vw, 2.25rem);
    right: clamp(1.5rem, 2.5vw, 2.25rem);
    top: 0;
    height: 8px;
    background-image:
        linear-gradient(to right, rgba(143, 208, 245, 0.75) 1px, transparent 1px),
        linear-gradient(to right, rgba(143, 208, 245, 0.4) 1px, transparent 1px);
    background-size: 40px 8px, 8px 4px;
    background-repeat: repeat-x;
    pointer-events: none;
}
.trust__big {
    display: block;
    margin-top: 0.75rem;
    font-size: clamp(4rem, 2.4rem + 5vw, 8rem);
    font-weight: 300;
    line-height: 0.88;
    letter-spacing: -0.055em;
    color: #fff;
    font-variant-numeric: lining-nums tabular-nums;
    text-shadow: 0 0 40px rgba(45, 155, 215, 0.45);
}
.trust__value {
    display: block;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(143, 208, 245, 0.3);
    font-size: clamp(1.1875rem, 1.05rem + 0.5vw, 1.4375rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #fff;
}
.trust__text { display: block; margin-top: 0.375rem; font-size: 1rem; line-height: 1.5; color: #D6E6F2; }

/* 7. Fascia fotografica a tutta larghezza ------------------------------- */
.photo-band { background: var(--c-navy); }
.photo-band .media { border-radius: 0; border: 0; max-height: 78vh; }

/* 8. Sezioni ------------------------------------------------------------- */
.section { position: relative; padding-block: var(--section-y); }
.section--paper { background: var(--c-paper); }
.section--blue {
    background-color: var(--c-blue);
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 48px 48px;
    color: #fff;
}
.section--navy {
    background-color: var(--c-navy);
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 120px 120px;
    color: var(--c-on-dark-soft);
}
.section--blue :focus-visible,
.section--navy :focus-visible { outline-color: #fff; }
.section--navy a:not(.btn),
.section--blue a:not(.btn) { color: #fff; }
.section--navy a:not(.btn):hover,
.section--blue a:not(.btn):hover { color: var(--c-on-dark-link); }

.section-title {
    max-width: 22ch;
    font-size: var(--fs-h2);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.02;
    text-wrap: balance;
}
.section-title--xl { font-size: var(--fs-h2-xl); line-height: 1; letter-spacing: -0.036em; max-width: 16ch; }
.section--navy .section-title,
.section--blue .section-title { color: #fff; }

.section-head { margin-bottom: clamp(3rem, 6vw, 5.5rem); }
.section-intro { text-wrap: pretty; max-width: 52ch; margin-top: 1.5rem; font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.25rem); line-height: 1.55; color: var(--c-ink-soft); }
.section--navy .section-intro { color: var(--c-on-dark-soft); }
.section-head--split {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 1.5rem clamp(2rem, 6vw, 6rem);
    align-items: end;
}
.section-head--split .section-intro { margin-top: 0; }

/* 9. Chi siamo ----------------------------------------------------------- */
.about { overflow: hidden; }
.about__year {
    position: absolute;
    right: -0.04em;
    top: clamp(1rem, 4vw, 3rem);
    font-size: clamp(8rem, 4rem + 18vw, 22rem);
    font-weight: 800;
    line-height: 0.8;
    letter-spacing: -0.06em;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--c-line);
    pointer-events: none;
    user-select: none;
}
.about__grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4rem) clamp(2.5rem, 6vw, 6rem);
}
.about__head { grid-column: 1 / -1; }
.about__head .section-title { font-size: var(--fs-h2-xl); line-height: 1; letter-spacing: -0.036em; max-width: 15ch; }
.about__statement {
    font-size: clamp(1.25rem, 1rem + 1vw, 1.875rem);
    font-weight: 500;
    line-height: 1.38;
    letter-spacing: -0.012em;
    color: var(--c-ink);
}
.about__body p:not(.about__statement) { max-width: 56ch; color: var(--c-ink-soft); }
.about__body .text-link { display: inline-block; margin-top: 0.5rem; }
.about__media { align-self: end; }
/* La foto della sede (12:5) viene ritagliata in 4:3 tenendo al centro l'insegna */
.about__media .media { aspect-ratio: 4 / 3 !important; }
.about__media .media img { object-position: 53% 50%; }
.photo-band .media img { object-position: 50% 45%; }

/* 10. Competenze: indice ------------------------------------------------- */
.services-section { background: var(--c-bg); padding-top: 0; }
.services { list-style: none; border-top: 3px solid var(--c-ink); }
.service {
    position: relative;
    display: grid;
    grid-template-columns: 7.5rem minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 1.5rem clamp(1.5rem, 4vw, 4rem);
    padding-block: clamp(2.25rem, 4vw, 3.5rem);
    border-bottom: 1px solid var(--c-line-strong);
}
.service::before {
    content: "";
    position: absolute;
    left: 0;
    top: -1px;
    height: 3px;
    width: 0;
    background: var(--c-blue);
    transition: width 0.5s var(--ease);
}
.service:hover::before,
.service:focus-within::before { width: 100%; }

.service__num {
    font-size: clamp(3rem, 2rem + 3vw, 5rem);
    font-weight: 100;
    line-height: 0.85;
    letter-spacing: -0.05em;
    color: var(--c-blue);
    font-variant-numeric: tabular-nums;
}
.service__title {
    font-size: clamp(1.75rem, 1.2rem + 1.8vw, 2.75rem);
    font-weight: 800;
    line-height: 1.02;
    letter-spacing: -0.035em;
    text-wrap: balance;
}
.service__text { margin-top: 1.25rem; max-width: 50ch; color: var(--c-ink-soft); }
.service__note {
    max-width: 50ch;
    margin-top: 1rem;
    padding-left: 1rem;
    border-left: 3px solid var(--c-sky);
    font-size: 0.9375rem;
    color: var(--c-ink-soft);
}
.service__subtitle { margin-bottom: 0.5rem; font-size: var(--fs-small); font-weight: 700; color: var(--c-blue-deep); }
.service__tests { list-style: none; font-size: 0.9688rem; line-height: 1.5; }
.service__tests li { position: relative; padding: 0.625rem 0 0.625rem 1.5rem; border-top: 1px solid var(--c-line); }
.service__tests li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.2em;
    width: 12px;
    height: 2px;
    background: var(--c-blue);
}
.service__tests strong { font-weight: 650; }
.service__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.5rem; margin-top: 1.5rem; }

/* 11. Destinatari (blu del marchio) ------------------------------------- */
.audience__top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2rem clamp(2rem, 6vw, 6rem);
    align-items: end;
    margin-bottom: clamp(3rem, 6vw, 5rem);
}
.audience__intro { max-width: 52ch; font-size: 1.1875rem; line-height: 1.55; color: #E6F3FB; }
.audience__groups {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(1rem, 2.5vw, 2rem);
    align-items: stretch;
    margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.audience__group {
    padding: clamp(1.25rem, 2.5vw, 2rem) clamp(1.25rem, 2.5vw, 2rem) 0.75rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: var(--radius-m);
    box-shadow: 0 26px 50px -34px rgba(2, 35, 55, 0.7);
}
.audience__group-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 1rem;
    font-size: 0.9375rem;
    font-weight: 700;
    color: #fff;
    border-bottom: 2px solid #fff;
}
.audience__list { list-style: none; }
.audience__item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.audience__item:last-child { border-bottom: 0; }
.audience__icon {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-m);
    background: #fff;
    color: var(--c-blue);
    transition: background-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.3s var(--ease);
}
.audience__icon svg {
    width: 32px;
    height: 32px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.audience__label {
    font-size: clamp(1.125rem, 1rem + 0.6vw, 1.4375rem);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: #fff;
    transition: transform 0.3s var(--ease);
}
.audience__item:hover .audience__icon { background: var(--c-navy); color: #fff; transform: rotate(-6deg); }
.audience__item:hover .audience__label { transform: translateX(4px); }

.audience__cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem 2rem;
    padding: clamp(1.25rem, 2.5vw, 1.75rem) clamp(1.25rem, 2.5vw, 2rem);
    background: var(--c-navy);
    border-radius: var(--radius-m);
}
.audience__cta p { margin: 0; max-width: 52ch; font-size: 1.0625rem; color: #E6F3FB; }

/* 12. Lavori (blu notte) ------------------------------------------------- */
.works {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
    list-style: none;
}
.works { grid-auto-rows: clamp(260px, 30vw, 440px); }
.work { position: relative; overflow: hidden; border-radius: var(--radius-m); }
.work--1 { grid-column: span 5; }
.work--2 { grid-column: span 7; }
.work--3 { grid-column: span 7; }
.work--4 { grid-column: span 5; }
.work .media { height: 100%; aspect-ratio: auto !important; border-radius: var(--radius-m); }
.work__caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: clamp(1.25rem, 2.5vw, 2rem);
    background: linear-gradient(to top, rgba(2, 35, 55, 0.94) 0%, rgba(2, 35, 55, 0.75) 60%, rgba(2, 35, 55, 0) 100%);
}
.work__title { font-size: clamp(1.25rem, 1rem + 1vw, 1.875rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; color: #fff; }
.work__activity { margin-top: 0.375rem; color: var(--c-on-dark-soft); font-size: 0.9375rem; }

.works__closing {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.5rem 3rem;
    align-items: center;
    margin-top: clamp(3rem, 5vw, 4.5rem);
    padding-top: 2rem;
    border-top: 1px solid var(--c-navy-line);
}
.works__closing p { max-width: 64ch; font-size: 1.1875rem; color: #fff; }

/* 13. Autorizzazioni: quattro schede semplici ------------------------- */
.certs-section { background: var(--c-paper); }
.certs__intro p { margin: 0; }
.certs__intro p + p { margin-top: 0.875rem; padding-top: 0.875rem; border-top: 1px solid var(--c-line-strong); }
.certs__intro strong { font-weight: 700; color: var(--c-ink); }
.certs {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
    list-style: none;
}
.cert {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: clamp(1.5rem, 2.5vw, 2rem);
    background: #fff;
    border: 1px solid var(--c-line);
    border-top: 4px solid var(--c-blue);
    border-radius: var(--radius-m);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.cert:hover { transform: translateY(-4px); box-shadow: 0 22px 40px -28px rgba(2, 35, 55, 0.55); }
.cert__badge {
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
    background: var(--c-paper);
    border: 1px solid var(--c-line);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--c-blue-deep);
}
.cert__icon {
    display: grid;
    place-items: center;
    width: 56px;
    height: 56px;
    margin-top: 1.5rem;
    border-radius: var(--radius-m);
    background: var(--c-blue);
    color: #fff;
}
.cert__icon svg { width: 32px; height: 32px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.cert__title { margin-top: 1.25rem; font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.025em; }
.cert__ref { margin: 0.625rem 0 1.5rem; font-size: 0.9375rem; color: var(--c-ink-soft); }
.cert__doc {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--c-blue-deep);
}
.cert__doc::before {
    content: "PDF";
    padding: 0.125rem 0.375rem;
    border-radius: 2px;
    background: var(--c-blue);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}
.cert__doc--missing { color: var(--c-grey); font-weight: 600; }
.cert__doc--missing::before { content: "PDF"; background: transparent; border: 1px dashed var(--c-line-strong); color: var(--c-grey); }
.cert--iso .cert__doc--missing { color: var(--c-on-dark-soft); }
.cert--iso .cert__doc--missing::before { background: transparent; border-color: rgba(255, 255, 255, 0.35); color: var(--c-on-dark-soft); }
.cert--iso { background: var(--c-navy); border-color: var(--c-navy); border-top-color: var(--c-sky); color: #fff; }
.cert--iso .cert__badge { background: transparent; border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.cert--iso .cert__icon { background: var(--c-sky); }
.cert--iso .cert__title { color: #fff; }
.cert--iso .cert__ref { color: var(--c-on-dark-soft); }
.cert--iso .cert__doc { color: #fff; }
.cert--iso .cert__doc::before { background: var(--c-sky); }
.cert--iso :focus-visible { outline-color: #fff; }

/* 15. FAQ ---------------------------------------------------------------- */
.faq {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 6vw, 6rem);
    align-items: start;
}
.faq__head { position: sticky; top: calc(var(--header-h) + 2rem); }
.faq__head p { margin-top: 1.75rem; color: var(--c-ink-soft); max-width: 36ch; }
.faq__list { border-top: 3px solid var(--c-ink); }
.faq__item { border-bottom: 1px solid var(--c-line-strong); }
.faq__item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.5rem 0;
    cursor: pointer;
    list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
    content: "";
    flex: 0 0 auto;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background:
        linear-gradient(#fff, #fff) center / 14px 2px no-repeat,
        linear-gradient(#fff, #fff) center / 2px 14px no-repeat,
        var(--c-blue);
    transition: transform 0.3s var(--ease), background-color 0.2s;
}
.faq__item[open] summary::after { transform: rotate(45deg); background-color: var(--c-ink); }
.faq__q { font-size: clamp(1.125rem, 1rem + 0.5vw, 1.4375rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.3; transition: color 0.2s; }
.faq__item summary:hover .faq__q { color: var(--c-blue-deep); }
.faq__a { padding: 0 4rem 1.75rem 0; color: var(--c-ink-soft); }
.faq__a p { max-width: 64ch; }

/* 16. Modulistica ------------------------------------------------------- */
.docs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
    align-items: stretch;
}
.docs__group {
    display: flex;
    flex-direction: column;
    padding: clamp(1.25rem, 2.2vw, 1.75rem);
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-m);
}
.docs__head {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding-bottom: 1rem;
    margin-bottom: 0.5rem;
    border-bottom: 2px solid var(--c-ink);
}
.docs__icon {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-m);
    background: var(--c-blue);
    color: #fff;
}
.docs__icon svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.docs__title { font-size: 1.1875rem; font-weight: 800; letter-spacing: -0.02em; }
.docs__list { list-style: none; }
.docs__list li + li { border-top: 1px solid var(--c-line); }

.doc {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.875rem;
    padding: 0.75rem 0.5rem;
    margin-inline: -0.5rem;
    border-radius: var(--radius-s);
    color: var(--c-ink);
    text-decoration: none;
    transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.doc__file {
    position: relative;
    display: grid;
    place-items: center;
    width: 36px;
    height: 40px;
    color: var(--c-blue);
}
.doc__file svg { width: 36px; height: 40px; fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linejoin: round; }
.doc__file span {
    position: absolute;
    left: 50%;
    bottom: 7px;
    transform: translateX(-50%);
    padding: 0 3px;
    border-radius: 2px;
    background: var(--c-blue);
    color: #fff;
    font-size: 0.5625rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1.5;
}
.doc__label { font-size: 0.9375rem; font-weight: 600; line-height: 1.35; }
.doc__go {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1.5px solid var(--c-blue);
    color: var(--c-blue);
    transition: background-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.25s var(--ease);
}
.doc__go svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.doc--file:hover { background: var(--c-paper); color: var(--c-blue-deep); }
.doc--file:hover .doc__go { background: var(--c-blue); color: #fff; transform: translate(2px, -2px); }

.doc--missing { color: var(--c-ink-soft); cursor: default; }
.doc--missing .doc__file { color: var(--c-line-strong); }
.doc--missing .doc__file span { background: var(--c-line-strong); }
.doc__status {
    padding: 0.1875rem 0.5rem;
    border: 1px dashed var(--c-line-strong);
    border-radius: 999px;
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--c-grey);
    white-space: nowrap;
}

.docs__actions { display: flex; flex-wrap: wrap; gap: 0.875rem; margin-top: clamp(3rem, 5vw, 4rem); }

/* 17. Contatti e modulo (blu notte) ------------------------------------- */
.contact {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(2.5rem, 6vw, 6rem);
    align-items: start;
}
.contact__intro { margin-top: 1.5rem; max-width: 46ch; font-size: 1.1875rem; color: var(--c-on-dark-soft); }
.contact__label { margin: 2.5rem 0 0.25rem; font-size: var(--fs-small); font-weight: 650; color: var(--c-sky); }
.contact__phone {
    display: inline-block;
    font-size: clamp(2.25rem, 1.2rem + 3.6vw, 4.5rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.04em;
    color: #fff !important;
    text-decoration: none;
    white-space: nowrap;
}
.contact__phone:hover { color: var(--c-on-dark-link) !important; }
.contact__list { margin: 2rem 0; border-top: 1px solid var(--c-navy-line); }
.contact__list div {
    display: grid;
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 1rem;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--c-navy-line);
}
.contact__list dt { font-size: var(--fs-small); font-weight: 650; color: var(--c-sky); padding-top: 0.125rem; }
.contact__list dd { margin: 0; font-weight: 500; color: #fff; overflow-wrap: anywhere; }
.contact__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.contact__form-wrap {
    padding: clamp(1.5rem, 4vw, 3rem);
    background: #fff;
    color: var(--c-ink);
    border-radius: var(--radius-m);
    border-top: 6px solid var(--c-blue);
}
.contact__form-wrap a { color: var(--c-blue-deep) !important; }
.contact__form-wrap :focus-visible { outline-color: var(--c-focus); }
.form__title { font-size: clamp(1.625rem, 1.3rem + 1.2vw, 2.25rem); font-weight: 800; letter-spacing: -0.035em; color: var(--c-ink); }
.form__legend { margin: 0.5rem 0 1.75rem; font-size: var(--fs-small); color: var(--c-grey); }
.form__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.field { display: flex; flex-direction: column; gap: 0.4375rem; min-width: 0; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 0.9375rem; font-weight: 650; color: var(--c-ink); }
.req { color: var(--c-blue-deep); }
.field input,
.field select,
.field textarea {
    width: 100%;
    min-height: 50px;
    padding: 0.75rem 0.875rem;
    font: inherit;
    font-size: 1rem;
    color: var(--c-ink);
    background: var(--c-paper);
    border: 0;
    border-bottom: 2px solid var(--c-line-strong);
    border-radius: var(--radius-s) var(--radius-s) 0 0;
    transition: border-color 0.2s, background-color 0.2s;
}
.field textarea { min-height: 9rem; resize: vertical; line-height: 1.5; }
.field select {
    appearance: none;
    padding-right: 2.5rem;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--c-ink) 50%),
        linear-gradient(135deg, var(--c-ink) 50%, transparent 50%);
    background-position: calc(100% - 20px) 52%, calc(100% - 14px) 52%;
    background-size: 6px 6px;
    background-repeat: no-repeat;
}
.field ::placeholder { color: #6E7A84; opacity: 1; }
.field input:hover,
.field select:hover,
.field textarea:hover { border-bottom-color: var(--c-ink-soft); }
.field input:focus,
.field select:focus,
.field textarea:focus { outline: none; background-color: #fff; border-bottom-color: var(--c-blue); box-shadow: 0 0 0 2px var(--c-blue); }
.field--error input,
.field--error select,
.field--error textarea { border-bottom-color: var(--c-error); background-color: var(--c-error-bg); }
.field__error { margin: 0; font-size: var(--fs-small); font-weight: 550; color: var(--c-error); }

.form__hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form__privacy { margin: 1.5rem 0; font-size: var(--fs-small); color: var(--c-ink-soft); }
.form__submit { width: 100%; }
.form__submit[aria-disabled="true"] { opacity: 0.7; cursor: progress; }

.notice { margin: 1.25rem 0 1.5rem; padding: 1rem 1.25rem; border-left: 4px solid; border-radius: var(--radius-s); font-size: 0.9375rem; }
.notice:focus { outline: none; }
.notice ul { margin-top: 0.5rem; padding-left: 1.125rem; }
.notice--success { background: var(--c-success-bg); border-color: var(--c-success); color: #0E4D30; font-weight: 650; }
.notice--error { background: var(--c-error-bg); border-color: var(--c-error); color: #7A1A12; }
.contact__form-wrap .notice--error a { color: #7A1A12 !important; }

/* 18. Footer ------------------------------------------------------------- */
.site-footer {
    padding-block: clamp(3.5rem, 7vw, 5rem) 1.75rem;
    background: #01182A;
    color: #B9C9D6;
    font-size: 0.9375rem;
    line-height: 1.6;
}
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { color: var(--c-on-dark-link); text-decoration: underline; }
.site-footer :focus-visible { outline-color: #fff; }
.site-footer__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr) minmax(0, 1.45fr) minmax(0, 0.75fr) minmax(0, 0.75fr);
    gap: 2.5rem clamp(1.5rem, 2.5vw, 2.5rem);
    padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.site-footer__logo {
    display: inline-flex;
    padding: 0.4375rem 0.875rem;
    background: #fff;
    border-radius: var(--radius-s);
}
.site-footer__logo:hover { text-decoration: none; }
.site-footer__logo img { height: 48px; width: auto; }
.site-footer__tagline { margin: 1.25rem 0 0.5rem; max-width: 32ch; font-weight: 600; color: #fff; }
.site-footer__areas { margin: 0; max-width: 34ch; }
.site-footer__heading {
    margin-bottom: 1rem;
    padding-bottom: 0.625rem;
    border-bottom: 2px solid var(--c-sky);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--c-sky);
    display: inline-block;
}
.site-footer__address { font-style: normal; color: #fff; }
.site-footer__more { display: inline-block; padding-block: 0.5rem; margin-top: 0.25rem; font-size: var(--fs-small); font-weight: 650; color: var(--c-on-dark-link) !important; }
.site-footer__list { margin: 0; display: grid; gap: 0.75rem; }
.site-footer__list dt { font-size: 0.75rem; font-weight: 650; color: #8FA3B3; }
.site-footer__list dd { margin: 0; font-size: 0.875rem; font-weight: 600; }
.site-footer__nav { list-style: none; display: grid; gap: 0.125rem; }
.site-footer__nav a { display: inline-block; padding-block: 0.3125rem; }
.site-footer__nav a { font-weight: 500; }
.site-footer__sep { margin-inline: 0.375rem; }
.site-footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem 2rem;
    margin-top: 1.5rem;
}
.site-footer__legal { margin: 0; font-size: var(--fs-small); color: #8FA3B3; }
.site-footer__credit { margin: 0; }
.site-footer__credit,
.site-footer__credit a {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #8FA3B3;
    text-decoration: none;
}
.site-footer__credit img { width: auto; height: 26px; opacity: 0.85; transition: opacity 0.2s var(--ease); }
.site-footer__credit a:hover img { opacity: 1; }

/* 19. Barra di accesso rapido (mobile) ----------------------------------- */
.quickbar { display: none; }

/* 20. Fotografie e placeholder ------------------------------------------- */
.media { position: relative; width: 100%; overflow: hidden; background: var(--c-paper); border-radius: var(--radius-m); }
.media img { width: 100%; height: 100%; object-fit: cover; }

.media--placeholder {
    display: grid;
    place-items: center;
    background-color: #E6ECF1;
    background-image:
        linear-gradient(to right, rgba(0, 122, 194, 0.14) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 122, 194, 0.14) 1px, transparent 1px),
        linear-gradient(to right, rgba(0, 122, 194, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 122, 194, 0.05) 1px, transparent 1px);
    background-size: 48px 48px, 48px 48px, 12px 12px, 12px 12px;
    background-position: -1px -1px;
}
/* Variante su fondi scuri */
.photo-band .media--placeholder,
.section--navy .media--placeholder {
    background-color: var(--c-navy-2);
    background-image:
        linear-gradient(to right, rgba(143, 208, 245, 0.16) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(143, 208, 245, 0.16) 1px, transparent 1px),
        linear-gradient(to right, rgba(143, 208, 245, 0.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(143, 208, 245, 0.06) 1px, transparent 1px);
}
.ph-crop { position: absolute; width: 22px; height: 22px; border: 0 solid var(--c-blue); }
.photo-band .ph-crop,
.section--navy .ph-crop { border-color: #8FD0F5; }
.ph-crop--tl { top: 16px; left: 16px; border-top-width: 2px; border-left-width: 2px; }
.ph-crop--tr { top: 16px; right: 16px; border-top-width: 2px; border-right-width: 2px; }
.ph-crop--bl { bottom: 16px; left: 16px; border-bottom-width: 2px; border-left-width: 2px; }
.ph-crop--br { bottom: 16px; right: 16px; border-bottom-width: 2px; border-right-width: 2px; }
.ph-text {
    display: grid;
    gap: 0.25rem;
    justify-items: center;
    max-width: 80%;
    padding: 0.875rem 1.25rem;
    background: #fff;
    border-radius: var(--radius-s);
    text-align: center;
}
.ph-label { font-size: 1rem; font-weight: 750; color: var(--c-ink); }
.ph-note { font-size: var(--fs-small); color: var(--c-ink-soft); }
.ph-size { font-size: 0.75rem; color: var(--c-grey); font-variant-numeric: tabular-nums; }
/* Nei lavori il testo del placeholder sale per non finire sotto la didascalia */
.work .media--placeholder { place-items: start center; padding-top: 12%; }

/* 21. Movimento ---------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
    /* Unico momento orchestrato: il disegno tecnico si traccia all'apertura */
    .js .drawing .d-draw {
        stroke-dasharray: 1;
        stroke-dashoffset: 1;
        animation: ec-draw 1.6s var(--ease) forwards;
    }
    .js .drawing .d-axis,
    .js .drawing .d-fill,
    .js .drawing .d-label { opacity: 0; animation: ec-fade 0.8s 1.1s var(--ease) forwards; }
    .js .hero__text > * { animation: ec-rise 0.8s var(--ease) both; }
    .js .hero__text > :nth-child(2) { animation-delay: 0.06s; }
    .js .hero__text > :nth-child(3) { animation-delay: 0.16s; }
    .js .hero__text > :nth-child(4) { animation-delay: 0.22s; }
    .js .hero__text > :nth-child(5) { animation-delay: 0.28s; }
    .js .hero__seal { animation: ec-seal 1.1s cubic-bezier(0.34, 1.56, 0.64, 1) 1.5s both; }
    /* Quadrante: entra tracciandosi, poi ruota lentamente come una ghiera di misura */
    .js .hero__seal::before { animation: ec-dial-in 1.2s var(--ease) 1.7s both, ec-dial-spin 40s linear 2.9s infinite; }
    /* Onda che parte dal sigillo dopo l'ingresso */
    .js .hero__seal::after { animation: ec-seal-pulse 1.6s var(--ease) 2.4s 2 backwards; }
    /* Il marchio si "assesta" come l'ago di uno strumento */
    .js .hero__seal img { animation: ec-needle 1.4s var(--ease) 2.1s both; }

    .reveal-ready [data-reveal] {
        opacity: 0;
        transform: translateY(18px);
        transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
    }
    .reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}
@keyframes ec-draw { to { stroke-dashoffset: 0; } }
@keyframes ec-rise { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
@keyframes ec-fade { from { opacity: 0; } to { opacity: 1; } }

/* 21b. Animazioni aggiuntive (solo con movimento consentito e JS attivo) -- */
.scroll-progress {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 3px;
    background: var(--c-sky);
    transform: scaleX(0);
    transform-origin: left;
    pointer-events: none;
}

/* Riempimento dei pulsanti principali al passaggio */
.btn--primary {
    background-image: linear-gradient(var(--c-blue-deep), var(--c-blue-deep));
    background-repeat: no-repeat;
    background-size: 0% 100%;
    transition: background-size 0.35s var(--ease), color 0.2s;
}
.btn--primary:hover { background-color: var(--c-blue); background-size: 100% 100%; }

.work .media { transition: transform 0.8s var(--ease); }
.work:hover .media { transform: scale(1.035); }

@media (prefers-reduced-motion: no-preference) {
    /* Contenitori a comparsa progressiva: si animano i figli, non il contenitore */
    .reveal-ready [data-reveal="stagger"],
    .reveal-ready [data-reveal="wipe"] { opacity: 1; transform: none; }

    .reveal-ready [data-reveal="stagger"] > * {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
        transition-delay: calc(var(--si, 0) * 90ms);
    }
    .reveal-ready [data-reveal="stagger"].is-visible > * { opacity: 1; transform: none; }

    .reveal-ready .services .service__num { transition: transform 0.9s var(--ease), opacity 0.9s var(--ease); transform: translateX(-24px); opacity: 0; }
    .reveal-ready .services.is-visible .service__num { transform: none; opacity: 1; transition-delay: calc(var(--si, 0) * 90ms + 150ms); }

    /* Fotografia panoramica: apertura a tendina */
    .reveal-ready [data-reveal="wipe"] .media { clip-path: inset(0 0 100% 0); transition: clip-path 1.3s var(--ease); }
    .reveal-ready [data-reveal="wipe"].is-visible .media { clip-path: inset(0 0 0 0); }


    /* Carico applicato nel disegno: due impulsi dopo il tracciamento */
    .js .drawing .d-load { animation: ec-load 0.9s var(--ease) 1.9s 2; }

    /* Avviso di apertura delle FAQ */
    .faq__item[open] .faq__a { animation: ec-rise 0.45s var(--ease) both; }
}

@keyframes ec-seal {
    from { opacity: 0; transform: scale(0.6) rotate(-40deg); }
    to { opacity: 1; transform: none; }
}
@keyframes ec-dial-in {
    from { opacity: 0; transform: rotate(-120deg) scale(0.85); }
    to { opacity: 0.9; transform: none; }
}
@keyframes ec-dial-spin { to { transform: rotate(360deg); } }
@keyframes ec-seal-pulse {
    0% { transform: scale(1); opacity: 1; border-color: rgba(143, 208, 245, 0.7); }
    100% { transform: scale(1.35); opacity: 0; }
}
@keyframes ec-needle {
    0% { transform: rotate(-18deg); }
    45% { transform: rotate(9deg); }
    70% { transform: rotate(-4deg); }
    100% { transform: rotate(0deg); }
}
@keyframes ec-load {
    0%, 100% { transform: translateY(0); }
    45% { transform: translateY(7px); }
}

/* 22. Responsive --------------------------------------------------------- */
@media (max-width: 1180px) {
    .service { grid-template-columns: 5rem minmax(0, 1fr) minmax(0, 1fr); }
}

@media (max-width: 1060px) {

    .certs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .docs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .docs__group:last-child { grid-column: 1 / -1; }
    .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
    .hero__grid,
    .about__grid,
    .audience__top,
    .faq,
    .contact,
    .section-head--split,
    .works__closing { grid-template-columns: 1fr; }

    .hero__drawing { max-width: 420px; justify-self: center; width: 100%; }
    .hero__seal { left: 24px; bottom: 4%; width: 104px; }
    .drawing { max-height: 60vh; }
    .service { grid-template-columns: 4rem minmax(0, 1fr); }
    .service__side { grid-column: 2; }
    .faq__head { position: static; }
    .works { grid-template-columns: 1fr 1fr; grid-auto-rows: clamp(240px, 45vw, 380px); }
    .work--1, .work--2, .work--3, .work--4 { grid-column: span 1; }
    .photo-band .media { aspect-ratio: 16 / 9 !important; }
}

@media (max-width: 760px) {
    :root { --header-h: 68px; }

    .trust { grid-template-columns: 1fr; gap: 1rem; }
    .trust__item { padding: 1.5rem 1.25rem; }
    .trust__big { font-size: 3.75rem; }
    .trust__value { margin-top: 1rem; padding-top: 0.875rem; }

    .service { grid-template-columns: 1fr; gap: 1rem; }
    .service__side { grid-column: auto; }
    .service__num { font-size: 2.75rem; }

    .audience__groups,
    .certs,
    .works,
    .docs,
    .form__grid { grid-template-columns: 1fr; }
    .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 1.25rem; }
    .site-footer__brand,
    .site-footer__col:nth-child(2),
    .site-footer__col:nth-child(3) { grid-column: 1 / -1; }
    .site-footer__sep { display: none; }
    .site-footer__vat { display: block; }

    .about__year { font-size: 9rem; top: 1rem; }
    .photo-band .media { aspect-ratio: 4 / 3 !important; }

    .hero__actions .btn,
    .contact__actions .btn,
    .docs__actions .btn,
    .service__actions .btn,
    .audience__cta .btn { width: 100%; }

    .faq__a { padding-right: 0; }
    .contact__list div { grid-template-columns: 1fr; gap: 0.125rem; }
    .contact__phone { font-size: clamp(2rem, 9vw, 2.75rem); }

    body { padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)); }
    .quickbar {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 40;
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.5rem;
        padding: 0.5rem var(--gutter) calc(0.5rem + env(safe-area-inset-bottom, 0px));
        background: var(--c-navy);
        border-top: 1px solid var(--c-navy-line);
        transition: transform 0.25s var(--ease);
    }
    .quickbar a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.25rem;
        min-height: 54px;
        padding: 0.375rem 0.25rem;
        border-radius: var(--radius-s);
        font-size: 0.8125rem;
        font-weight: 700;
        text-align: center;
        text-decoration: none;
        line-height: 1.1;
        white-space: nowrap;
        color: #fff;
    }
    .quickbar svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
    .quickbar__call,
    .quickbar__mail { border: 1.5px solid rgba(255, 255, 255, 0.5); }
    .quickbar__call:hover,
    .quickbar__mail:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }
    .quickbar__quote { background: var(--c-blue); }
    .quickbar__quote:hover { background: var(--c-blue-strong); color: #fff; }
    .quickbar :focus-visible { outline-color: #fff; }
    .quickbar.is-hidden { transform: translateY(110%); }
}

/* Footer su schermi medi: marchio su una riga, quattro colonne sotto */
@media (max-width: 1320px) and (min-width: 1061px) {
    .site-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr) minmax(0, 0.75fr) minmax(0, 0.75fr); }
    .site-footer__brand { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 2rem; }
    .site-footer__tagline { margin: 0; }
}

/* Schermi molto stretti: i titoli grandi restano dentro la pagina */
@media (max-width: 380px) {
    :root { --fs-h2-xl: 2.125rem; --fs-h2: 1.875rem; --fs-h1: 2.5rem; }
}

/* 23. Stampa ------------------------------------------------------------ */
@media print {
    .site-header, .quickbar, .hero__drawing, .photo-band, .contact__form-wrap, .about__year { display: none !important; }
    .hero, .section--navy, .section--blue, .cert--iso { background: none !important; color: #000 !important; }
    .hero *, .section--navy *, .section--blue *, .cert--iso * { color: #000 !important; }
}