.aepiva-chat {
    --aepiva-accent: #174ea6;
    --aepiva-accent-dark: color-mix(in srgb, var(--aepiva-accent) 82%, #000);
    --aepiva-accent-soft: color-mix(in srgb, var(--aepiva-accent) 8%, #fff);
    --aepiva-border: #e2e7ef;
    --aepiva-muted: #667085;
    --aepiva-cta: #e4003b;
    --aepiva-cta-dark: color-mix(in srgb, var(--aepiva-cta) 84%, #000);
    width: 100%; max-width: 1080px; margin: 18px auto 28px; background: #fff;
    border: 1px solid var(--aepiva-border); border-top: 4px solid var(--aepiva-accent);
    border-radius: 16px; overflow: hidden; box-shadow: 0 12px 36px rgba(16,24,40,.08);
    font-family: inherit; color: #101828;
}
.aepiva-chat *, .aepiva-chat *::before, .aepiva-chat *::after { box-sizing: border-box; }
.aepiva-chat__header { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 16px; padding: 24px 26px 20px; background: #fff; color: #101828; }
.aepiva-chat__brandmark { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: var(--aepiva-accent); color: #fff; font-size: 14px; font-weight: 850; box-shadow: 0 6px 18px color-mix(in srgb, var(--aepiva-accent) 20%, transparent); }
.aepiva-chat__header-copy { min-width: 0; }
.aepiva-chat__eyebrow { display: block; margin-bottom: 4px; color: var(--aepiva-accent); font-size: 11px; line-height: 1.1; font-weight: 800; letter-spacing: .11em; }
.aepiva-chat__header h2 { margin: 0 0 5px; color: #101828; font-size: clamp(23px,2.7vw,31px); line-height: 1.15; font-weight: 800; }
.aepiva-chat__header p { margin: 0; max-width: 700px; color: #667085; font-size: 14px; line-height: 1.45; }
.aepiva-chat button.aepiva-chat__reset { appearance: none; border: 1px solid var(--aepiva-cta) !important; background-color: var(--aepiva-cta) !important; background-image: none !important; color: #fff !important; padding: 11px 17px; border-radius: 10px; font: inherit; font-size: 14px; line-height: 1.2; font-weight: 750; cursor: pointer; transition: border-color .15s ease, background .15s ease, transform .15s ease; }
.aepiva-chat button.aepiva-chat__reset:hover { border-color: var(--aepiva-cta-dark) !important; background-color: var(--aepiva-cta-dark) !important; background-image: none !important; transform: translateY(-1px); }
.aepiva-chat button.aepiva-chat__reset:focus-visible { outline: 3px solid color-mix(in srgb,var(--aepiva-cta) 25%,transparent); outline-offset: 2px; }
.aepiva-chat__category-intro { padding: 12px 22px 0; border-top: 1px solid var(--aepiva-border); background: #fafbfc; color: #667085; font-size: 12px; font-weight: 650; }
.aepiva-chat__categories { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 9px; padding: 12px 22px 18px; background: #fafbfc; border-bottom: 1px solid var(--aepiva-border); }
.aepiva-chat__categories button { appearance: none; display: flex; align-items: center; gap: 7px; border: 1px solid #dfe4ec; border-radius: 11px; background: #fff; color: #344054; min-height: 44px; padding: 9px 11px; font: inherit; font-size: 13px; font-weight: 720; text-align: left; cursor: pointer; transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease, background .15s ease; }
.aepiva-chat__categories button:hover { border-color: var(--aepiva-accent); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(16,24,40,.05); }
.aepiva-chat__categories button.is-selected { border-color: var(--aepiva-accent); background: var(--aepiva-accent-soft); color: var(--aepiva-accent-dark); box-shadow: 0 0 0 1px color-mix(in srgb,var(--aepiva-accent) 12%,transparent); }
.aepiva-chat__categories button.is-selected::after { content: none; }
.aepiva-chat__categories button:disabled { opacity: .55; cursor: wait; transform: none; }
.aepiva-chat__categories button span { margin: 0; font-size: 17px; line-height: 1; }
.aepiva-chat__messages { height: clamp(220px,30vh,320px); min-height: 220px; overflow-y: auto; padding: 20px 24px 16px; background: #f8fafc; scroll-behavior: smooth; }
.aepiva-chat--has-history .aepiva-chat__messages { height: clamp(260px,36vh,390px); }
.aepiva-chat__message { display: flex; align-items: flex-start; gap: 9px; margin: 0 0 15px; }
.aepiva-chat__message--user { flex-direction: row-reverse; }
.aepiva-chat__avatar { display: grid; place-items: center; flex: 0 0 31px; width: 31px; height: 31px; border-radius: 9px; background: #e9edf3; color: #667085; font-size: 10px; font-weight: 800; }
.aepiva-chat__message--assistant .aepiva-chat__avatar { background: var(--aepiva-accent); color: #fff; }
.aepiva-chat__bubble { max-width: min(82%,760px); padding: 11px 14px; border: 1px solid #e2e7ef; border-radius: 5px 14px 14px 14px; background: #fff; color: #1d2939; font-size: 14px; line-height: 1.58; white-space: pre-wrap; overflow-wrap: anywhere; box-shadow: 0 2px 6px rgba(16,24,40,.025); }
.aepiva-chat__message--user .aepiva-chat__bubble { border-color: var(--aepiva-accent); border-radius: 14px 5px 14px 14px; background: var(--aepiva-accent); color: #fff; box-shadow: none; }
.aepiva-chat__message--loading .aepiva-chat__bubble { opacity: .62; font-style: italic; }
.aepiva-chat__composer { display: flex; align-items: flex-end; gap: 9px; padding: 14px 18px 10px; border-top: 1px solid var(--aepiva-border); background: #fff; }
.aepiva-chat__input-wrap { flex: 1 1 auto; min-width: 0; }
.aepiva-chat__composer textarea { width: 100%; min-height: 50px; max-height: 160px; resize: vertical; margin: 0; border: 1px solid #cfd6e0; border-radius: 12px; padding: 12px 14px; background: #fff; color: #101828; font: inherit; font-size: 14px; line-height: 1.45; outline: none; }
.aepiva-chat__composer textarea:focus { border-color: var(--aepiva-accent); box-shadow: 0 0 0 3px color-mix(in srgb,var(--aepiva-accent) 12%,transparent); }
.aepiva-chat__char-counter { margin-top: 5px; padding-right: 3px; text-align: right; color: #667085; font-size: 11px; line-height: 1.2; }
.aepiva-chat__char-counter.is-near-limit { color: #b42318; font-weight: 700; }
.aepiva-chat button.aepiva-chat__send { appearance: none; flex: 0 0 auto; min-width: 88px; min-height: 50px; border: 0; border-radius: 11px; padding: 0 17px; background-color: var(--aepiva-cta) !important; background-image: none !important; color: #fff !important; font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; transition: background .15s ease, transform .15s ease; }
.aepiva-chat button.aepiva-chat__send:hover { background-color: var(--aepiva-cta-dark) !important; background-image: none !important; transform: translateY(-1px); }
.aepiva-chat button.aepiva-chat__send:focus-visible { outline: 3px solid color-mix(in srgb,var(--aepiva-cta) 25%,transparent); outline-offset: 2px; }
.aepiva-chat button.aepiva-chat__send:disabled { opacity: .55; cursor: wait; }
.aepiva-chat__notice { margin: 0; padding: 0 18px 14px; color: #7a8494; background: #fff; font-size: 11px; line-height: 1.45; }

.aepiva-chat .screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}


@media (max-width: 720px) {
    /* iOS Safari può eseguire lo zoom automatico sui campi con font <= circa 16px,
       e alcuni temi Elementor possono sovrascrivere il font del textarea. */
    .aepiva-chat {
        max-width: 100% !important;
        overflow-x: clip;
        -webkit-text-size-adjust: 100%;
    }
    .aepiva-chat__composer,
    .aepiva-chat__input-wrap {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }
    .aepiva-chat__composer textarea {
        display: block;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        font-size: 17px !important;
        line-height: 1.45 !important;
        -webkit-text-size-adjust: 100%;
    }
    .aepiva-chat { margin: 12px auto 20px; border-radius: 13px; }
    .aepiva-chat__header { grid-template-columns: auto minmax(0,1fr); padding: 18px 15px 16px; gap: 12px; }
    .aepiva-chat__brandmark { width: 40px; height: 40px; }
    .aepiva-chat__reset { grid-column: 1 / -1; justify-self: start; margin-left: 52px; }
    .aepiva-chat__category-intro { padding: 11px 13px 0; }
    .aepiva-chat__categories { grid-template-columns: repeat(2,minmax(0,1fr)); padding: 11px 13px 15px; }
    .aepiva-chat__messages { min-height: 180px; height: clamp(180px,24vh,220px); padding: 14px 13px; }
    .aepiva-chat--has-history .aepiva-chat__messages { height: clamp(220px,31vh,285px); }
    .aepiva-chat__bubble { max-width: 88%; font-size: 14px; }
    .aepiva-chat__composer { padding: 11px 12px 9px; }
    .aepiva-chat__notice { padding: 0 12px 12px; }
}
@media (max-width: 460px) {
    .aepiva-chat__header { grid-template-columns: 1fr; padding: 15px 13px 13px; }
    .aepiva-chat__brandmark { display: none; }
    .aepiva-chat__reset { grid-column: auto; margin-left: 0; }

    /* Su smartphone privilegiamo leggibilita e target di tocco ampi:
       una categoria per riga evita testi troncati o troppo compressi. */
    .aepiva-chat__categories { grid-template-columns: 1fr; gap: 7px; padding: 9px 10px 12px; }
    .aepiva-chat__categories button { width: 100%; min-height: 44px; padding: 9px 11px; font-size: 13px; line-height: 1.25; }
    .aepiva-chat__categories button span { font-size: 16px; }

    /* L'area messaggi non riserva spazio vuoto al primo caricamento:
       cresce con il contenuto e poi diventa scrollabile. */
    .aepiva-chat__messages { height: auto; min-height: 0; max-height: 220px; padding: 13px 11px; }
    .aepiva-chat--has-history .aepiva-chat__messages { height: auto; min-height: 0; max-height: 285px; }

    /* Composer verticale: campo e pulsante non competono per la larghezza. */
    .aepiva-chat__composer { flex-direction: column; align-items: stretch; gap: 9px; padding: 10px 10px 9px; }
    .aepiva-chat__composer textarea { min-height: 96px; resize: vertical; }
    .aepiva-chat button.aepiva-chat__send { width: 100%; min-width: 0; min-height: 50px; padding: 0 16px; }

    /* La nota resta ben leggibile anche sui display piccoli. */
    .aepiva-chat__notice { padding: 2px 11px 13px; font-size: 13px; line-height: 1.5; }
}

/* Formattazione Markdown sicura delle risposte IA */
.aepiva-chat__message--assistant .aepiva-chat__bubble { white-space: normal; }
.aepiva-chat__message--assistant .aepiva-chat__bubble p { margin: 0 0 .8em; }
.aepiva-chat__message--assistant .aepiva-chat__bubble p:last-child { margin-bottom: 0; }
.aepiva-chat__message--assistant .aepiva-chat__bubble ul,
.aepiva-chat__message--assistant .aepiva-chat__bubble ol {
    margin: .45em 0 .9em 1.35em;
    padding: 0;
}
.aepiva-chat__message--assistant .aepiva-chat__bubble li { margin: .25em 0; }
.aepiva-chat__message--assistant .aepiva-chat__bubble strong { font-weight: 750; }
.aepiva-chat__message--assistant .aepiva-chat__bubble h3,
.aepiva-chat__message--assistant .aepiva-chat__bubble h4 {
    margin: .9em 0 .4em;
    font: inherit;
    font-weight: 800;
    color: inherit;
}
.aepiva-chat__message--assistant .aepiva-chat__bubble h3:first-child,
.aepiva-chat__message--assistant .aepiva-chat__bubble h4:first-child { margin-top: 0; }
.aepiva-chat__message--assistant .aepiva-chat__bubble blockquote {
    margin: .65em 0;
    padding-left: .8em;
    border-left: 3px solid #cfd4dc;
}
.aepiva-chat__message--assistant .aepiva-chat__bubble code {
    padding: .1em .3em;
    border-radius: 4px;
    background: rgba(16, 24, 40, .06);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: .92em;
}

/* Migliora la leggibilità dei sotto-elenchi che seguono una voce numerata. */
.aepiva-chat__message--assistant .aepiva-chat__bubble ol + ul {
    margin-top: -.45em;
    margin-left: 2.35em;
}

/* Fonti della base documentale usate da File Search */
.aepiva-chat__sources {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid rgba(16, 24, 40, .10);
    font-size: 11px;
    line-height: 1.35;
}
.aepiva-chat__sources-label {
    color: #667085;
    font-weight: 700;
    margin-right: 2px;
}
.aepiva-chat__source-chip {
    display: inline-block;
    max-width: 100%;
    padding: 3px 7px;
    border: 1px solid #d7dce2;
    border-radius: 999px;
    background: #fff;
    color: #475467;
    overflow-wrap: anywhere;
}

.aepiva-chat__source-chip--web {
    text-decoration: none;
    cursor: pointer;
}
.aepiva-chat__source-chip--web:hover,
.aepiva-chat__source-chip--web:focus {
    text-decoration: underline;
}




/* Protezione aggiuntiva Safari iOS: evita focus-zoom e overflow orizzontale
   senza disabilitare il normale pinch-to-zoom della pagina. */
@supports (-webkit-touch-callout: none) {
    .aepiva-chat,
    .aepiva-chat__composer,
    .aepiva-chat__input-wrap {
        max-width: 100% !important;
        min-width: 0 !important;
    }
    .aepiva-chat__composer textarea {
        font-size: 17px !important;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
    }
}