/* ============================================================
   ARPAL Calabria — Pagina di avvio applicazioni
   Override di Bootstrap Italia 2.8
   ============================================================ */

:root {
    --platform-blue-900: #002d5c;
    --platform-blue-700: #0059b3;
    --platform-blue-500: #0066cc;
    --platform-accent:   #c45b2a;
    --platform-text:     #17324d;
    --platform-text-2:   #455b71;
    --platform-bg:       #f0f4f8;
    --platform-border:   #e3e9ef;
    --platform-header-transition: .36s cubic-bezier(.22, 1, .36, 1);
}

/* Riserva spazio alla testata sticky per ancore e navigazione da tastiera. */
html { scroll-padding-top: var(--platform-header-offset, 12rem); }

body {
    font-family: "Titillium Web", "Segoe UI", Arial, sans-serif;
    color: var(--platform-text);
    background: var(--platform-bg);
}

/* Skip link visibile al focus */
.skip-link:focus {
    position: fixed;
    top: .5rem;
    left: .5rem;
    z-index: 2000;
    padding: .5rem 1rem;
    background: #fff;
    color: var(--platform-blue-500);
    font-weight: 600;
}

/* Focus sempre visibile (WCAG 2.4.7, contrasto ≥ 3:1 sullo sfondo):
   blu scuro sulle superfici chiare, giallo su quelle scure */
a:focus-visible {
    outline: 3px solid var(--platform-blue-900);
    outline-offset: 2px;
}
.platform-slim a:focus-visible,
.platform-header a:focus-visible,
.platform-footer a:focus-visible {
    outline-color: #ffbf47;
}

/* ------------------------------------------------------------
   Slim header e header
   ------------------------------------------------------------ */
.platform-topbar {
    position: sticky;
    top: 0;
    z-index: 1020;
    flex-shrink: 0;
    /* Mantiene stabile il contenuto quando la testata si compatta. */
    min-height: var(--platform-header-expanded-height, 0px);
    pointer-events: none;
}

.platform-topbar-content { pointer-events: auto; }

/* Misure allineate a Gestione Precari (/precariato): contenitore di 1280px con
   20px di margine interno, fascia slim di 32px, fascia principale di 106px
   (72px compatta). */
.platform-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.it-header-slim-wrapper.platform-slim {
    background: var(--platform-blue-900);
    height: auto;
    padding: 0;
    font-size: .82rem;
}
.it-header-slim-wrapper.platform-slim .it-header-slim-wrapper-content {
    min-height: 0;
    height: auto;
    padding: 6px 0;
}
.it-header-slim-wrapper.platform-slim .it-header-slim-wrapper-content .navbar-brand {
    padding: 0;
    font-size: .82rem;
    line-height: 20px;
}

.platform-env-badge {
    padding: 2px 6px;
    background: #ffbf47;
    color: #1a1a1a;
    font-size: .75rem;
    font-weight: 600;
    line-height: 16px;
}

/* Fascia con header.jpg (1983×106, ripresa da Gestione Precari), ritagliata
   per quest'altezza. Niente attachment:fixed: dentro un antenato sticky i
   background fixed sono inaffidabili. Il gradiente sotto l'immagine garantisce
   il contrasto del testo bianco se la foto non carica. */
.platform-header {
    position: relative;
    min-height: 106px;
    background: linear-gradient(120deg, var(--platform-blue-500) 0%, var(--platform-blue-700) 60%, #004a99 100%);
    box-shadow: 0 2px 10px rgba(0, 38, 77, .35);
    overflow: hidden;
    transition: min-height var(--platform-header-transition);
}
.platform-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("../img/header.jpg") center / cover no-repeat;
    pointer-events: none;
}
.platform-header > .platform-container {
    position: relative;
    z-index: 1;
    padding-top: 16px;
    padding-bottom: 16px;
    transition: padding var(--platform-header-transition);
}

.platform-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #fff;
    min-width: 0; /* il sottotitolo va a capo invece di uscire dalla fascia */
    text-decoration: none;
    transition: gap var(--platform-header-transition);
}
.platform-brand:hover { color: #fff; }

.platform-brand img {
    width: 58px;
    height: 58px;
    object-fit: contain;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, .25));
    transition: width var(--platform-header-transition), height var(--platform-header-transition);
}

/* Corpi del testo come resi in Gestione Precari: titolo 25px, sottotitolo
   14px light su riga da 28px; restano invariati anche in stato compatto. */
.platform-brand-title {
    display: block;
    font-size: 1.5625rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: .2px;
}

.platform-brand-tagline {
    display: block;
    margin-top: 2px;
    font-size: .875rem;
    font-weight: 300;
    line-height: 2;
    letter-spacing: .3px;
    opacity: .92;
}

/* Loghi raccolti in un'unica targa bianca alta quanto loghi.jpg di Gestione
   Precari (58px, 40px compatta), allineata al bordo destro del contenitore. */
.platform-header-logos {
    flex-shrink: 0;
    align-items: center;
    gap: .75rem;
    height: 58px;
    padding: 6px 12px;
    background: #fff;
    border-radius: 6px;
    transition: height var(--platform-header-transition), padding var(--platform-header-transition);
}
.platform-header-logos img {
    height: 100%;
    width: auto;
}

.platform-topbar.is-compact .platform-header { min-height: 64px; }
.platform-topbar.is-compact .platform-header > .platform-container { padding-top: 8px; padding-bottom: 8px; }
.platform-topbar.is-compact .platform-brand img { width: 40px; height: 40px; }
.platform-topbar.is-compact .platform-brand-tagline { margin-top: 0; }
.platform-topbar.is-compact .platform-header-logos { height: 40px; padding: 4px 10px; }

/* ------------------------------------------------------------
   Area principale: fotografia istituzionale (headerb.jpg, prosieguo di
   header.jpg) ancorata al viewport, come la pagina di accesso di Gestione
   Precari. Il main non è dentro l'antenato sticky: qui fixed è affidabile.
   Su mobile, sotto l'immagine, prosegue il suo colore (vedi media query in fondo).
   ------------------------------------------------------------ */
.platform-main {
    background: #fff url("../img/headerb.jpg") top center / cover no-repeat fixed;
}

.platform-main-inner {
    padding-top: 2.75rem;
    padding-bottom: 3rem;
}

/* Riquadri bianchi sulla foto: il testo non dipende dal contrasto con lo sfondo. */
.platform-intro,
.platform-app-card {
    background: #fff;
    border: 1px solid #d9e4f0;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(23, 50, 77, .12);
}

.platform-intro {
    margin-bottom: 1.5rem;
    padding: 1.5rem 1.75rem;
}

.platform-intro-eyebrow {
    color: var(--platform-text-2);
    font-size: .85rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.platform-intro h1 {
    color: var(--platform-blue-500);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    line-height: 1.15;
}

.platform-intro-lead {
    color: var(--platform-text-2);
    font-size: 1.15rem;
    line-height: 1.6;
    /*  max-width: 720px;*/
}

/* ------------------------------------------------------------
   Card applicazioni
   ------------------------------------------------------------ */
.platform-app-card {
    position: relative;
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    grid-template-rows: auto auto 1fr auto;
    gap: .5rem .625rem;
    width: 100%;
    padding: 1.25rem;
    border-top: 4px solid var(--platform-blue-500);
    scroll-margin-top: 1rem;
    transition: transform .2s ease, box-shadow .18s ease, border-color .18s ease;
}

/* Alone bianco e azzurro ripreso dai riquadri di accesso del Catalogo. */
.platform-app-card:not(.is-disabled):focus-within {
    transform: translateY(-3px);
    border-color: #fff;
    border-top-color: var(--platform-blue-500);
    box-shadow: 0 0 12px 3px rgba(255, 255, 255, .85),
                0 0 28px 6px rgba(115, 190, 255, .45);
}

@media (hover: hover) {
    .platform-app-card:not(.is-disabled):hover {
        transform: translateY(-3px);
        border-color: #fff;
        border-top-color: var(--platform-blue-500);
        box-shadow: 0 0 12px 3px rgba(255, 255, 255, .85),
                    0 0 28px 6px rgba(115, 190, 255, .45);
    }
}

.platform-app-card:focus-within {
    outline: 3px solid var(--platform-blue-900);
    outline-offset: 2px;
}
/* l'outline è già sulla card: evita il doppio anello sul link */
.platform-app-card a:focus-visible { outline: none; }

.platform-app-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #e6f0fa;
    color: var(--platform-blue-500);
}

.platform-app-icon svg { width: 20px; height: 20px; }

.platform-app-category {
    align-self: center;
    margin: 0;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--platform-text-2);
}

.platform-app-title {
    grid-column: 1 / -1;
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
}
.platform-app-title a {
    color: var(--platform-text);
    text-decoration: none;
}

.platform-app-desc {
    grid-column: 1 / -1;
    margin: 0;
    color: var(--platform-text-2);
    font-size: 1rem;
    line-height: 1.45;
}

.platform-app-action {
    grid-column: 1 / -1;
    font-weight: 600;
    color: var(--platform-blue-500);
}

.platform-arrow {
    display: inline-block;
    transition: transform .2s ease;
}
.platform-app-card:hover .platform-arrow { transform: translateX(4px); }

/* Applicazione non ancora disponibile */
.platform-app-card.is-disabled {
    background: #e9edf1;
    border-color: #cfd6dd;
    border-top-color: #a3b1bf;
    box-shadow: 0 4px 12px rgba(23, 50, 77, .08);
}
.platform-app-card.is-disabled .platform-app-icon {
    background: #fff;
    color: #5c6f82;
}
.platform-app-card.is-disabled .platform-badge-soon { background: #fff; }
.platform-badge-soon {
    background: #eef1f4;
    color: #455b71;
    font-weight: 600;
}

/* ------------------------------------------------------------
   Footer
   ------------------------------------------------------------ */
.platform-footer {
    background: var(--platform-blue-900);
    color: #fff;
}

.platform-footer-menu {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem 1.5rem;
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
}

.platform-footer-menu a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.platform-footer-copy {
    font-size: .9rem;
    opacity: .85;
}

/* ------------------------------------------------------------
   Mobile
   ------------------------------------------------------------ */
@media (max-width: 575.98px) {
    .platform-brand img { width: 44px; height: 44px; }
    .platform-brand-title { font-size: 1.3rem; }
    .platform-brand-tagline { font-size: .85rem; line-height: 1.4; }
    .platform-intro { padding: 1.25rem; }
    .platform-main-inner { padding-top: 1.5rem; }
}

/* Su touch (iOS ignora fixed) l'immagine scorre e si adatta alla larghezza,
   invece di essere ingrandita sull'intera altezza della pagina. Sotto la foto
   prosegue il colore del suo bordo inferiore (#9ec9f3, campionato da
   headerb.jpg): senza, le ultime card finivano su fondo bianco. */
@media (max-width: 991.98px), (hover: none) {
    .platform-main {
        background-color: #9ec9f3;
        background-attachment: scroll;
        background-size: auto 793px;
        background-position: 70% top;
    }
}

@media (prefers-reduced-motion: reduce) {
    .platform-header,
    .platform-header-logos,
    .platform-brand,
    .platform-brand img,
    .platform-brand-title,
    .platform-brand-tagline,
    .platform-header-logos img,
    .platform-app-card,
    .platform-arrow { transition: none; }
    .platform-app-card:not(.is-disabled):hover,
    .platform-app-card:not(.is-disabled):focus-within { transform: none; }
}