/* =============================================
   Responsive CSS - Mobile & Tablet
============================================= */

@media (max-width: 980px) {
    .summary-strip,
    .service-grid,
    .decision-grid,
    .pillars-grid,
    .activity-grid,
    .contact-grid,
    .path-grid,
    .use-case-grid,
    .author-strip,
    .sitemap-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --mobile-nav-left-inset: 28px;
        --mobile-top-inset: max(env(safe-area-inset-top, 0px), 24px);
    }

    body.nav-open {
        overflow: hidden;
        touch-action: none;
    }

    .site-header {
        position: fixed;
        top: var(--admin-bar-offset);
        left: 0;
        right: 0;
        padding-top: var(--mobile-top-inset);
        overflow: visible;
        border-bottom: 4px solid var(--color-text-ink);
        box-shadow: 0 4px 0 rgba(0, 0, 0, 0.38);
        background: repeating-linear-gradient(
            90deg,
            #f8f8f5 0 8px,
            #ecece7 8px 16px
        );
        backdrop-filter: none;
    }

    .site-header__inner {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 76px;
        align-items: stretch;
        min-height: var(--header-height-mobile);
        padding: 0;
    }

    .site-header__brand {
        min-width: 0;
        min-height: var(--header-height-mobile);
        padding: 0 10px 0 9px;
        justify-content: center;
        border-right: 4px solid var(--color-text-ink);
        background: #ffffff;
        box-shadow: none;
        transform: none;
    }

    .site-header__brand-kicker {
        font-size: 7px;
        letter-spacing: 0.2em;
        opacity: 1;
    }

    .site-header__brand-title {
        font-size: 13px;
        letter-spacing: 0.1em;
        line-height: 1;
    }

    .site-header__toggle {
        display: inline-flex;
        position: relative;
        justify-content: center;
        align-items: center;
        z-index: calc(var(--z-header) + 30);
        width: 76px;
        min-height: var(--header-height-mobile);
        padding: 0;
        border: 0;
        border-left: 4px solid var(--color-text-ink);
        border-top: 0;
        border-bottom: 0;
        border-radius: 0;
        background: #151514;
        color: #ffffff;
        transform: none;
        box-shadow: none;
        pointer-events: auto;
        touch-action: manipulation;
    }

    .site-header__toggle-icon {
        width: 36px;
    }

    .site-header__toggle:hover,
    .site-header__toggle:focus-visible {
        background: #f8ff57;
        color: var(--color-text-ink);
    }

    .site-header__toggle.is-active {
        background: #d71920;
        color: #ffffff;
    }

    .site-nav {
        position: fixed;
        top: calc(var(--admin-bar-offset) + var(--header-height-mobile) + var(--mobile-top-inset));
        right: 0;
        left: 0;
        bottom: 0;
        width: 100vw;
        min-width: 100vw;
        max-width: 100vw;
        margin: 0;
        padding: 14px 0 calc(18px + env(safe-area-inset-bottom));
        background: repeating-linear-gradient(
            0deg,
            #0d0d0c 0 10px,
            #161615 10px 20px
        );
        border: 0;
        border-top: 4px solid #ffffff;
        box-shadow: none;
        transform: translateY(-14px);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
        overflow-x: hidden;
        overflow-y: auto;
        pointer-events: none;
        z-index: calc(var(--z-header) + 20);
    }

    .site-nav.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .site-nav__list {
        counter-reset: nav-item;
        display: block;
        width: 100vw;
        min-width: 100vw;
        max-width: 100vw;
        margin: 0;
        padding: 18px 0 0;
    }

    .site-nav__item {
        display: block;
        width: calc(100vw - var(--mobile-nav-left-inset));
        max-width: calc(100vw - var(--mobile-nav-left-inset));
        margin: 0 0 12px auto;
        padding: 0;
        opacity: 0;
        transform: translateX(28px);
        transform-origin: right center;
        transition: transform 0.32s cubic-bezier(0.2, 0.72, 0.2, 1), opacity 0.2s linear;
        pointer-events: auto;
    }

    .site-nav.is-open .site-nav__item {
        opacity: 1;
        transform: translateX(0);
    }

    .site-nav.is-open .site-nav__item:nth-child(1) { transition-delay: 0.02s; }
    .site-nav.is-open .site-nav__item:nth-child(2) { transition-delay: 0.06s; }
    .site-nav.is-open .site-nav__item:nth-child(3) { transition-delay: 0.1s; }
    .site-nav.is-open .site-nav__item:nth-child(4) { transition-delay: 0.14s; }
    .site-nav.is-open .site-nav__item:nth-child(5) { transition-delay: 0.18s; }
    .site-nav.is-open .site-nav__item:nth-child(6) { transition-delay: 0.22s; }
    .site-nav.is-open .site-nav__item:nth-child(7) { transition-delay: 0.26s; }
    .site-nav.is-open .site-nav__item:nth-child(8) { transition-delay: 0.3s; }

    .site-nav__link {
        display: flex;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        margin: 0 0 0 auto;
        justify-content: flex-start;
        text-align: left;
        min-height: 58px;
        padding: 0 18px 0 14px;
        font-size: 13px;
        letter-spacing: 0.14em;
        border: 4px solid var(--color-text-ink);
        border-right: 0;
        border-radius: 22px 0 0 22px;
        background: #ffffff;
        box-shadow: -10px 8px 0 rgba(0, 0, 0, 0.45);
        color: var(--color-text-ink);
    }

    .site-nav__link::before {
        counter-increment: nav-item;
        content: counter(nav-item, decimal-leading-zero);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 24px;
        margin-right: 12px;
        font-size: 10px;
        font-weight: 700;
        letter-spacing: 0.16em;
        opacity: 1;
        border: 2px solid var(--color-text-ink);
        background: var(--color-text-ink);
        color: #ffffff;
    }

    .site-nav__link::after {
        content: "//";
        margin-left: auto;
        font-size: 10px;
        letter-spacing: 0.18em;
        opacity: 0.7;
    }

    .site-nav__text--desktop {
        display: none;
    }

    .site-nav__text--mobile {
        display: inline;
    }

    .site-nav__link:hover,
    .site-nav__link:focus-visible {
        transform: translateX(-4px);
        border-color: var(--color-text-ink);
        background: #f8ff57;
        color: var(--color-text-ink);
        box-shadow: -5px 4px 0 rgba(0, 0, 0, 0.52);
    }

    .site-nav__link.is-current,
    .site-nav__link[aria-current="page"] {
        background: var(--color-text-ink);
        color: #ffffff;
        border-color: #ffffff;
        box-shadow: -10px 8px 0 #f8ff57;
    }

    .site-nav__link.is-current::before,
    .site-nav__link[aria-current="page"]::before {
        opacity: 1;
        border-color: #ffffff;
        background: #ffffff;
        color: var(--color-text-ink);
    }

    .site-nav__link.is-current::after,
    .site-nav__link[aria-current="page"]::after {
        opacity: 1;
    }

    .site-nav__backdrop {
        position: fixed;
        top: calc(var(--admin-bar-offset) + var(--header-height-mobile) + var(--mobile-top-inset));
        right: 0;
        bottom: 0;
        left: 0;
        background: repeating-linear-gradient(
            45deg,
            rgba(0, 0, 0, 0.86) 0 8px,
            rgba(0, 0, 0, 0.75) 8px 16px
        );
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-normal);
        z-index: calc(var(--z-header) + 10);
    }

    .site-nav__backdrop.is-visible {
        opacity: 1;
        pointer-events: auto;
    }

    main {
        margin-top: calc(var(--header-height-mobile) + var(--admin-bar-offset) + var(--mobile-top-inset));
        min-height: calc(100vh - var(--header-height-mobile) - var(--admin-bar-offset) - var(--mobile-top-inset));
        padding: 0 22px 120px;
    }

    body.home > #page > main#primary.site-main {
        padding-top: 0;
    }

    main::before { display: none; }

    /* Typography on mobile */
    h1 { font-size: 1.95rem; }
    h2 { font-size: 1.18rem; }
    .lead { font-size: 1.08rem; }
    .hero-sheet { padding: 26px; }
    .margin-note,
    .margin-stamp { display: none; }
    .box-finale { padding: 26px; }
    .author-stat { padding: 22px 20px; }

    .site-footer {
        margin-top: 48px;
        padding: 32px 16px calc(40px + env(safe-area-inset-bottom));
    }

    .site-footer__inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .site-footer__links--routes {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .site-footer__links--routes .site-footer__link {
        width: 100%;
        justify-content: flex-start;
    }

    .site-footer__backtotop {
        width: 100%;
    }

    .site-footer__code-comment {
        justify-content: flex-start;
    }

    .site-footer__code-comment {
        width: 100%;
    }
}

@media (max-width: 480px) {
    :root {
        --mobile-nav-left-inset: 20px;
    }

    main {
        padding: 0 18px 116px;
    }

    .author-stat {
        padding-left: 18px;
        padding-right: 18px;
    }

    body.home > #page > main#primary.site-main {
        padding-top: 0;
    }

    .service-card {
        padding: 22px 18px;
    }

    /* Chiedi Contact Form - Terminal (v41.3.9) */
    .terminal-form-container { 
        padding: 24px 16px 22px; 
        margin: 32px 0 38px; 
    }

    .terminal-form-container::before { 
        left: 12px; 
        right: 12px; 
        width: fit-content; 
        max-width: calc(100% - 24px); 
    }

    .terminal-textarea, 
    .success-overlay { 
        padding-left: 14px; 
        padding-right: 14px; 
    }
}

/* =============================================
   Chiedi Page Responsive Parity (v41.3.7)
============================================= */
@media (max-width: 768px) {
    .hero-sheet {
        margin-bottom: 42px;
    }

    .feature-pill-grid {
        margin: 24px 0 40px;
    }

    .service-grid {
        margin: 26px 0 40px;
    }

    .service-card {
        padding: 24px 20px;
    }

    .service-card .cta-row {
        margin-top: 18px;
    }

    .box-finale {
        margin-top: 44px;
    }

    /* Chiedi Contact Form - Terminal (v41.3.9) */
    .terminal-form-container {
        padding: 28px 20px 24px;
        margin: 36px 0 42px;
        box-shadow: 6px 6px 0px var(--color-border);
    }

    .terminal-form-container::before {
        left: 14px;
        top: -14px;
        font-size: 9px;
        letter-spacing: 1px;
        padding: 4px 10px;
    }

    .terminal-line { 
        margin-bottom: 24px; 
    }

    .terminal-line label { 
        font-size: 12px; 
        line-height: 1.5; 
    }

    .terminal-line label::before { 
        display: block; 
        margin-bottom: 4px; 
    }

    .terminal-input { 
        font-size: 16px; 
        padding: 12px 0; 
    }

    .terminal-textarea { 
        min-height: 220px; 
        font-size: 16px; 
        padding: 16px; 
    }

    .submit-wrap { 
        flex-direction: column; 
        align-items: stretch; 
        gap: 14px; 
    }

    .terminal-hint { 
        font-size: 11px; 
        text-align: center; 
    }

    .btn-send { 
        width: 100%; 
        min-height: 52px; 
        padding: 14px 18px; 
        letter-spacing: 1.2px; 
    }

    .success-overlay { 
        padding: 24px 20px; 
        margin: 34px 0; 
    }
}

/* Page sections */
.page-section { display: none; }
.page-section.active { display: block; }

/* =============================================
   Print Easter Egg
============================================= */
@media print {
    body::before {
        content: "USO INTERNO - FASCICOLO RISERVATO - NON DIVULGARE";
        display: block;
        text-align: center;
        font-family: 'Courier New', Courier, monospace;
        font-size: 14pt;
        font-weight: bold;
        border: 4px solid black;
        padding: 10px;
        margin-bottom: 20px;
        text-transform: uppercase;
    }

    .site-header, .site-footer, .box-finale, .btn {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    main {
        margin: 0 !important;
        padding: 0 !important;
    }
}