/* Presidi condivisi WCAG 2.1 AA. Caricare dopo gli stili di pagina. */
:root {
    /* Verde brand scurito: contrasto con il bianco 4,89:1. */
    --accent: #3f7f35;
    --accent-dark: #2f6b2b;
}

.skip-link {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 1000002;
    padding: 10px 14px;
    border: 2px solid #ffffff;
    border-radius: 6px;
    background: #1f474d;
    color: #ffffff;
    font-weight: 700;
    text-decoration: none;
    transform: translateY(-160%);
}

.skip-link:focus {
    color: #ffffff;
    text-decoration: underline;
    transform: translateY(0);
}

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

*:focus-visible {
    outline: 3px solid #2f6b2b !important;
    outline-offset: 3px !important;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
select,
textarea {
    border-color: #7f9194 !important;
}

main p a:not(.btn),
main li a:not(.btn),
main td a:not(.btn),
main dd a:not(.btn) {
    text-decoration: underline !important;
    text-decoration-thickness: 0.09em;
    text-underline-offset: 0.14em;
}

#sib-container a,
.sib-form a {
    color: #2c5e66 !important;
    text-decoration: underline !important;
}

footer {
    border-top: 0 !important;
    background: #1f474d !important;
    color: rgba(255, 255, 255, 0.85) !important;
}

footer strong,
footer a {
    color: #ffffff !important;
}

footer p {
    color: rgba(255, 255, 255, 0.85) !important;
}

footer a {
    text-decoration: underline !important;
}

[aria-invalid="true"] {
    border-color: #9b1c1c !important;
    box-shadow: 0 0 0 2px rgba(155, 28, 28, 0.2) !important;
}

.form-error {
    margin-top: 12px;
    color: #7f1d1d;
    font-weight: 600;
}

.media-accessibility-notice {
    max-width: 920px;
    margin: 0 auto;
    padding: 22px 24px;
    border: 2px solid #2c5e66;
    border-radius: 12px;
    background: #ffffff;
    color: #1a2e32;
}

.media-accessibility-notice p + p {
    margin-top: 10px;
}

.table-scroll {
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
}

.a11y-nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 14px;
    flex-wrap: wrap;
}

.a11y-nav-links a {
    font-size: 14px;
    font-weight: 600;
}

@media (max-width: 640px) {
    .brand-strip .container {
        align-items: flex-start;
        flex-direction: column;
    }

    .a11y-nav-links {
        justify-content: flex-start;
    }

    .audience-grid,
    .tutorial-grid {
        grid-template-columns: minmax(0, 1fr) !important;
    }

    .audience-card,
    .tutorial-step {
        min-width: 0 !important;
        width: auto !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto !important;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}