:root {
    --sf-bg: #f4f5f7;
    --sf-surface: #ffffff;
    --sf-text: #1d2433;
    --sf-muted: #5b6475;
    --sf-border: #dde1e8;
    --sf-primary: #2457c5;
    --sf-primary-hover: #1c46a3;
    --sf-error-bg: #fdecea;
    --sf-error-text: #8a1c12;
    --sf-warn-bg: #fff4e0;
    --sf-warn-text: #7a4b00;
    --sf-danger: #b3261e;
}

@media (prefers-color-scheme: dark) {
    :root {
        --sf-bg: #12151b;
        --sf-surface: #1b2029;
        --sf-text: #e6e9ef;
        --sf-muted: #9aa3b2;
        --sf-border: #2c3340;
        --sf-primary: #6f98f2;
        --sf-primary-hover: #8eaef6;
        --sf-error-bg: #3a1d1a;
        --sf-error-text: #f3b4ac;
        --sf-warn-bg: #3a2c12;
        --sf-warn-text: #f5d08f;
        --sf-danger: #f2766b;
    }
}

html, body { font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif; }

/* Pagine statiche: accesso, errore */
.sf-auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px 16px;
    background: var(--sf-bg);
    color: var(--sf-text);
}

.sf-auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--sf-surface);
    border: 1px solid var(--sf-border);
    border-radius: 14px;
    padding: 36px 32px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sf-auth-brand { display: flex; gap: 14px; align-items: center; color: var(--sf-primary); }
.sf-auth-brand h1 { margin: 0; font-size: 1.35rem; font-weight: 700; color: var(--sf-text); }
.sf-auth-brand h1:focus { outline: none; }   /* focus automatico della navigazione, non serve qui */
.sf-auth-brand p { margin: 2px 0 0; font-size: .9rem; color: var(--sf-muted); }

.sf-auth-button {
    display: block;
    text-align: center;
    padding: 12px 16px;
    border-radius: 8px;
    background: var(--sf-primary);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    transition: background .15s;
}
.sf-auth-button:hover, .sf-auth-button:focus-visible { background: var(--sf-primary-hover); }

.sf-auth-note { margin: 0; font-size: .85rem; line-height: 1.5; color: var(--sf-muted); }

.sf-auth-alert {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: .9rem;
    border: 1px solid var(--sf-border);
}
.sf-auth-alert--error { background: var(--sf-error-bg); color: var(--sf-error-text); border-color: transparent; }

.sf-auth-footer {
    border-top: 1px solid var(--sf-border);
    padding-top: 14px;
    font-size: .78rem;
    color: var(--sf-muted);
}

.sf-auth-alert--warn { background: var(--sf-warn-bg); color: var(--sf-warn-text); border-color: transparent; }

/* QR HealthKey: il codice resta su fondo bianco anche in tema scuro, per la leggibilità della fotocamera */
.sf-qr { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.sf-qr-box {
    width: 232px; height: 232px; padding: 4px; border-radius: 12px; background: #fff;
    border: 1px solid var(--sf-border); display: grid; place-items: center;
}
.sf-qr-box svg { width: 100%; height: 100%; display: block; }
.sf-qr-box--expired { opacity: .25; filter: grayscale(1); }
.sf-qr-status { margin: 0; font-weight: 600; text-align: center; }

.sf-auth-button--ghost { background: transparent; color: var(--sf-primary); border: 1px solid var(--sf-primary); }
.sf-auth-button--ghost:hover { background: var(--sf-primary); color: #fff; }
.sf-auth-button--danger { background: var(--sf-danger); }
.sf-auth-button--danger:hover { filter: brightness(.92); background: var(--sf-danger); }
button.sf-auth-button { width: 100%; border: 0; cursor: pointer; font: inherit; }
button.sf-auth-button.sf-auth-button--ghost { border: 1px solid var(--sf-primary); }

.sf-auth-more { border: 1px solid var(--sf-border); border-radius: 8px; padding: 10px 12px; }
.sf-auth-more > summary { cursor: pointer; font-size: .9rem; color: var(--sf-muted); }
.sf-auth-more--danger > summary { color: var(--sf-danger); }
.sf-auth-form { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.sf-auth-form label { display: flex; flex-direction: column; gap: 4px; font-size: .85rem; color: var(--sf-muted); }
.sf-auth-form input {
    font: inherit; padding: 9px 10px; border-radius: 6px; border: 1px solid var(--sf-border);
    background: var(--sf-bg); color: var(--sf-text);
}
.sf-auth-form input:focus-visible { outline: 2px solid var(--sf-primary); outline-offset: 1px; }

/* Area applicativa */
.sf-mono { font-family: ui-monospace, "Cascadia Code", Menlo, monospace; font-size: .85em; }

/* Riquadri "Come compilare" */
.sf-guide-table td, .sf-guide-table th { vertical-align: top; }
.sf-guide-table code {
    font-family: ui-monospace, "Cascadia Code", Menlo, monospace; font-size: .85em;
    padding: 1px 4px; border-radius: 4px; background: rgba(127, 127, 127, .14);
}

/* Richieste: barra di avanzamento */
.sf-steps { display: flex; gap: 4px; overflow-x: auto; padding: 4px 0; }
.sf-step { flex: 1 1 0; min-width: 96px; display: flex; flex-direction: column; align-items: center; gap: 6px;
           position: relative; text-align: center; }
.sf-step:not(:last-child)::after { content: ""; position: absolute; top: 13px; left: calc(50% + 16px); right: calc(-50% + 16px);
           height: 2px; background: var(--mud-palette-lines-default); }
.sf-step--done:not(:last-child)::after { background: var(--mud-palette-success); }
.sf-step-dot { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-size: .8rem; font-weight: 600;
               border: 2px solid var(--mud-palette-lines-default); color: var(--mud-palette-text-secondary); background: var(--mud-palette-surface); }
.sf-step--done .sf-step-dot { border-color: var(--mud-palette-success); background: var(--mud-palette-success); color: #fff; }
.sf-step--current .sf-step-dot { border-color: var(--mud-palette-primary); background: var(--mud-palette-primary); color: #fff; }
.sf-step-label { font-size: .75rem; color: var(--mud-palette-text-secondary); line-height: 1.2; }
.sf-step--current .sf-step-label { color: var(--mud-palette-text-primary); font-weight: 600; }

.sf-todo { border-left: 4px solid var(--mud-palette-primary) !important; }
.sf-prewrap { white-space: pre-wrap; overflow-wrap: anywhere; }
.sf-checklist { margin: 6px 0 0; padding-left: 20px; }
.sf-checklist li { margin: 4px 0; }
.sf-timeline { max-height: 520px; overflow-y: auto; }

/* Documentazione tecnica (Markdown) */
.sf-markdown h1 { font-size: 1.6rem; margin: 0 0 .5rem; }
.sf-markdown h2 { font-size: 1.3rem; margin: 1.6rem 0 .5rem; padding-bottom: .25rem; border-bottom: 1px solid var(--mud-palette-lines-default); }
.sf-markdown h3 { font-size: 1.08rem; margin: 1.2rem 0 .4rem; }
.sf-markdown p, .sf-markdown li { line-height: 1.6; }
.sf-markdown table { border-collapse: collapse; margin: .5rem 0 1rem; width: 100%; font-size: .9rem; }
.sf-markdown th, .sf-markdown td { border: 1px solid var(--mud-palette-lines-default); padding: 4px 8px; text-align: left; vertical-align: top; }
.sf-markdown th { background: rgba(127, 127, 127, .08); }
.sf-markdown code { font-family: ui-monospace, "Cascadia Code", Menlo, monospace; font-size: .85em; padding: 1px 4px; border-radius: 4px; background: rgba(127, 127, 127, .14); }
.sf-markdown blockquote { margin: .5rem 0; padding: .25rem .75rem; border-left: 3px solid var(--mud-palette-warning); color: var(--mud-palette-text-secondary); }

/* ── Schede di richiesta e di applicazione: leggibili a video, stampabili ── */
.sf-sheet { max-width: 920px; margin: 0 auto; padding: 28px 32px; background: #fff; color: #111; border-radius: 6px; line-height: 1.5; }
.sf-sheet h1 { font-size: 1.8rem; margin: 0 0 12px; }
.sf-sheet h2 { font-size: 1.35rem; margin: 22px 0 8px; border-bottom: 2px solid #1f4fb3; padding-bottom: 4px; }
.sf-sheet h3 { font-size: 1.05rem; margin: 18px 0 6px; color: #1f4fb3; }
.sf-sheet h4 { font-size: .95rem; margin: 12px 0 4px; }
.sf-sheet-meta, .sf-sheet-checks { width: 100%; border-collapse: collapse; margin: 6px 0 10px; font-size: .9rem; }
.sf-sheet-meta th { text-align: left; width: 170px; vertical-align: top; padding: 3px 8px 3px 0; color: #444; font-weight: 600; }
.sf-sheet-meta td { padding: 3px 0; overflow-wrap: anywhere; }
.sf-sheet-checks th, .sf-sheet-checks td { border: 1px solid #bbb; padding: 4px 6px; text-align: left; vertical-align: top; }
.sf-sheet-checks th { background: #eef1f6; }
.sf-sheet-event { margin: 0 0 10px; padding: 4px 0 4px 12px; border-left: 3px solid #c3c9d4; break-inside: avoid-page; }
.sf-sheet-analisi { border-left-color: #1f7fb3; background: #f3f8fc; }
.sf-sheet-sviluppo { border-left-color: #1f4fb3; }
.sf-sheet-domanda { border-left-color: #d98a00; }
.sf-sheet-risposta { border-left-color: #2e8b57; }
.sf-sheet-event-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .85rem; margin-bottom: 2px; }
.sf-sheet-event-head span { color: #555; }
.sf-sheet-break { break-before: page; page-break-before: always; }
@media print {
    .mud-appbar, .mud-drawer, .sf-noprint, #blazor-error-ui { display: none !important; }
    .mud-main-content { padding: 0 !important; margin: 0 !important; }
    .mud-container { max-width: none !important; padding: 0 !important; }
    html, body { background: #fff !important; }
    .sf-sheet { max-width: none; padding: 0; border-radius: 0; box-shadow: none; }
    .sf-sheet-break:first-of-type { break-before: auto; }
    @page { margin: 16mm; }
}

/* Pagina della richiesta: contenuto a sinistra, storico a destra (20% dello schermo) che parte all'altezza di «Tocca a te» e resta in vista. */
.sf-detail { display: flex; gap: 16px; align-items: flex-start; }
.sf-detail-main { flex: 1 1 0; min-width: 0; }
.sf-detail-history {
    flex: 0 0 20vw; width: 20vw; min-width: 260px;
    position: sticky; top: 72px;
    max-height: calc(100vh - 88px); overflow-y: auto;
}
@media (max-width: 959.98px) {
    .sf-detail { flex-direction: column; }
    .sf-detail-main, .sf-detail-history { flex: none; width: 100%; min-width: 0; position: static; max-height: none; overflow: visible; }
}