/* ==========================================================================
   ModbusKit – elementi comuni degli strumenti
   Campi, messaggi, esempi, tabelle e risultati usati da tutte le pagine strumento.
   Tutto è limitato a .tool-panel (il riquadro dello strumento in ToolPage), così le regole
   non toccano la guida o il resto del sito. Gli stili propri di ogni strumento restano
   nel suo file .razor.css.
   ========================================================================== */

/* --- Campi ---------------------------------------------------------------- */

.tool-panel .field {
    display: grid;
    gap: var(--space-2);
}

.tool-panel .field-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    min-height: 2.25rem;
}

.tool-panel label {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.0625rem;
}

.tool-panel textarea,
.tool-panel input[type="text"] {
    width: 100%;
    padding: var(--space-3);
    font-family: var(--font-mono);
    font-size: 1.375rem;
    line-height: 1.4;
    color: var(--color-ink);
    background: var(--color-page);
    border: 1.5px solid var(--color-rule-strong);
    border-radius: var(--radius-s);
}

.tool-panel input[type="text"] {
    font-size: 1.125rem;
}

.tool-panel textarea {
    resize: vertical;
    min-height: 4.5rem;
}

.tool-panel textarea::placeholder,
.tool-panel input[type="text"]::placeholder {
    color: var(--color-ink-muted);
    opacity: 0.6;
}

.tool-panel textarea:focus,
.tool-panel input[type="text"]:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

.tool-panel textarea[aria-invalid="true"],
.tool-panel input[aria-invalid="true"] {
    border-color: var(--color-error);
}

/* Campo con il pulsante "Svuota" dentro, in alto a destra. */
.tool-panel .input-box {
    position: relative;
}

.tool-panel .input-box textarea {
    padding-right: 5.5rem;
}

.tool-panel .clear {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    padding: 0.2rem 0.6rem;
    font: inherit;
    font-size: 0.875rem;
    color: var(--color-ink-muted);
    background: var(--color-surface);
    border: 1px solid var(--color-rule);
    border-radius: var(--radius-s);
    cursor: pointer;
}

.tool-panel .clear:hover {
    color: var(--color-ink);
    border-color: var(--color-rule-strong);
}

.tool-panel .hint {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-ink-muted);
}

/* Selettore a due o più voci, nello stesso stile del selettore di lingua. */
.tool-panel .segmented {
    display: inline-flex;
    gap: 2px;
    padding: 2px;
    border: 1px solid var(--color-rule);
    border-radius: var(--radius-m);
    background: var(--color-page);
}

.tool-panel .segmented button {
    padding: 0.25rem 0.7rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-ink-muted);
    background: none;
    border: none;
    border-radius: var(--radius-s);
    cursor: pointer;
}

.tool-panel .segmented button:hover {
    color: var(--color-ink);
}

.tool-panel .segmented button.is-on {
    color: var(--color-ink);
    background: var(--color-surface);
    box-shadow: 0 0 0 1px var(--color-rule-strong);
}

/* --- Messaggi ------------------------------------------------------------- */

.tool-panel .message {
    margin: 0;
    padding: var(--space-2) var(--space-3);
    border-left: 3px solid;
    border-radius: 0 var(--radius-s) var(--radius-s) 0;
    font-size: 0.9375rem;
}

.tool-panel .message-error {
    border-color: var(--color-error);
    background: var(--color-error-surface);
}

.tool-panel .message-warning {
    border-color: var(--color-rule-strong);
    background: var(--color-panel);
}

.tool-panel .message-match {
    border-color: var(--color-accent);
    background: var(--color-match-surface);
}

.tool-panel .message-info {
    border-color: var(--color-dimension);
    background: transparent;
    color: var(--color-ink-muted);
}

/* --- Esempi --------------------------------------------------------------- */

.tool-panel .examples {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--space-2) var(--space-3);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-rule);
}

.tool-panel .examples-label {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-ink-muted);
}

.tool-panel .examples ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tool-panel .examples button {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-2);
    padding: 0.3rem 0.65rem;
    font: inherit;
    font-size: 0.9375rem;
    color: var(--color-ink);
    background: var(--color-page);
    border: 1px solid var(--color-rule);
    border-radius: var(--radius-s);
    cursor: pointer;
    text-align: left;
}

.tool-panel .examples button:hover {
    border-color: var(--color-accent);
}

.tool-panel .examples code {
    padding: 0;
    white-space: nowrap;
    background: none;
    color: var(--color-accent);
    font-size: 0.875rem;
}

.tool-panel .examples span {
    color: var(--color-ink-muted);
}

/* --- Risultati ------------------------------------------------------------ */

.tool-panel .results {
    display: grid;
    gap: var(--space-5);
}

.tool-panel .empty,
.tool-panel .summary {
    margin: 0;
    color: var(--color-ink-muted);
}

.tool-panel .summary {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.0625rem;
    color: var(--color-ink);
}

.tool-panel .result-block {
    display: grid;
    gap: var(--space-3);
}

.tool-panel .result-block h2 {
    margin: 0;
    font-size: 1.1875rem;
}

/* Elenco etichetta / valore, per risultati singoli. */
.tool-panel .pairs {
    margin: 0;
    display: grid;
    gap: var(--space-3);
}

.tool-panel .pairs > div {
    display: grid;
    grid-template-columns: 11rem 1fr;
    gap: var(--space-3);
    align-items: baseline;
}

.tool-panel .pairs dt {
    color: var(--color-ink-muted);
    font-size: 0.9375rem;
}

.tool-panel .pairs dd {
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--space-2) var(--space-3);
}

/* Valore principale, in grande e in monospazio. */
.tool-panel .value {
    font-family: var(--font-mono);
    font-size: 1.125rem;
    overflow-wrap: anywhere;
}

.tool-panel .value-large {
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.1;
}

/* Byte di checksum dentro un frame: stesso colore dell'accento. */
.tool-panel mark.check {
    padding: 0 0.15em;
    color: var(--color-accent);
    background: var(--color-match-surface);
    border-radius: 2px;
}

/* --- Tabelle -------------------------------------------------------------- */

.tool-panel .table-wrap {
    overflow-x: auto;
    border: 1px solid var(--color-rule);
    border-radius: var(--radius-s);
}

.tool-panel table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.tool-panel th,
.tool-panel td {
    padding: var(--space-2) var(--space-3);
    text-align: left;
    border-bottom: 1px solid var(--color-rule);
    white-space: nowrap;
    vertical-align: baseline;
}

.tool-panel tbody tr:last-child th,
.tool-panel tbody tr:last-child td {
    border-bottom: none;
}

.tool-panel thead th {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-ink-muted);
    background: var(--color-panel);
}

.tool-panel tbody th {
    font-weight: 400;
}

.tool-panel .num {
    text-align: right;
}

.tool-panel td.num,
.tool-panel td.mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

.tool-panel td.muted {
    color: var(--color-ink-muted);
}

@media (max-width: 40rem) {
    /* Esempi su telefono: il codice su una riga sua, libero di andare a capo tra i byte. */
    .tool-panel .examples button {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.1rem;
    }

    .tool-panel .examples code {
        white-space: normal;
    }

    .tool-panel textarea {
        min-height: 6.5rem;
        font-size: 1.1875rem;
    }

    .tool-panel .pairs > div {
        grid-template-columns: 1fr;
        gap: var(--space-1);
    }
}