/* ==========================================================================
   Pagina Kart: sezione "Kart usati" (#usato), JS in t4-used.js.
   Richiesta del cliente del 21/10/2026: card quadrate come l'anteprima dei
   Ricambi originali (t4-shop.css, .t4shp), con il prezzo in evidenza.
   - .t4us          sezione, testata e filtri (select a pillola come
                    l'ordinamento dei Ricambi)
   - .t4us-shelf    scaffale: righe di card su un ripiano (linea sottile +
                    ombra morbida); le righe le compone il JS
   - .t4us-card     foto quadrata che scorre (tacche), titolo, prezzo, ore
                    motore, proprietario; tutta la card apre la scheda
   - .t4us-dlg      scheda grande dell'usato (dialog di t4fx.sheet): galleria
                    a sinistra, dati, "Acquista" e "Richiedi maggiori
                    informazioni" a destra; da telefono foglio dal basso
   - .t4us-f        moduli di richiesta (prima .t4kf in t4-kart-select.css)
   Nomi nuovi: le vecchie regole .t4ku/.t4kf di t4-kart-select.css non toccano
   più niente. Token e .t4-pill da t4-fx.css. Misure in px con clamp(): la
   root del tema cambia valore con la larghezza (12px a 992-1699).
   Movimento solo con prefers-reduced-motion: no-preference.
   ========================================================================== */
[data-t4-used]:empty { background: var(--t4-page); min-height: 640px; }
.t4us { --t4us-line: rgba(14, 20, 48, .16); background: var(--t4-page); color: var(--t4-navy); padding: clamp(64px, 7vw, 128px) 0; position: relative; }
.t4us *, .t4us *::before, .t4us *::after, .t4us-dlg *, .t4us-alert * { box-sizing: border-box; }
/* stessa colonna dei Ricambi (.t4sh__wrap) */
.t4us__wrap { margin: 0 auto; width: 89.23%; }
@media (min-width: 992px) { .t4us__wrap { max-width: 108.375rem; width: 90.94%; } }

.t4us-k { font-family: var(--t4-mono); font-size: 12px; letter-spacing: .1em; line-height: 1.3; margin: 0 0 14px; opacity: .75; text-transform: uppercase; }
.t4us__t { color: inherit; font-family: var(--t4-head); font-size: var(--t4-h2); font-weight: 500; letter-spacing: var(--t4-h2-track); line-height: 1.02; margin: 0; }
.t4us__lead { font-family: var(--t4-head); font-size: clamp(15px, 1.05vw, 17px); line-height: 1.5; margin: 14px 0 0; max-width: 46ch; opacity: .72; }

/* --------------------------------------------------------------------------
   Filtri e ordinamento
   -------------------------------------------------------------------------- */
.t4us-tools { align-items: flex-end; border-bottom: 1px solid var(--t4us-line); display: flex; flex-wrap: wrap; gap: 14px 24px; justify-content: space-between; margin-top: clamp(24px, 2.4vw, 40px); padding: 0 0 18px; }
.t4us-tools__f, .t4us-tools__s { align-items: flex-end; display: flex; flex-wrap: wrap; gap: 12px; }
.t4us-sel { display: grid; gap: 6px; min-width: 0; }
.t4us-sel label { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; line-height: 1.2; margin: 0; opacity: .65; text-transform: uppercase; }
.t4us-sel select {
  -webkit-appearance: none;
  appearance: none;
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6' fill='none' stroke='%230e1430' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 14px center / 14px;
  border: 1px solid rgba(14, 20, 48, .2);
  border-radius: 999px;
  color: var(--t4-navy);
  cursor: pointer;
  font-family: var(--t4-head);
  font-size: 15px;
  max-width: 100%;
  min-height: 44px;
  min-width: 150px;
  padding: 0 40px 0 16px;
  transition: border-color var(--t4-dur) var(--t4-ease);
}
.t4us-sel select:hover { border-color: var(--t4-navy); }
.t4us-sel select:focus-visible { outline: 2px solid var(--t4-blue); outline-offset: 2px; }
/* filtro attivo: pillola piena, come i filtri dei Ricambi */
.t4us-tools__f .t4us-sel select:not(:has(option[value=""]:checked)) {
  background-color: var(--t4-navy);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6' fill='none' stroke='%23ffffff' stroke-width='2'/%3E%3C/svg%3E");
  border-color: var(--t4-navy);
  color: #fff;
}
.t4us-count { font-family: var(--t4-mono); font-size: 12px; letter-spacing: .06em; line-height: 44px; margin: 0; opacity: .7; text-transform: uppercase; white-space: nowrap; }
@media (max-width: 767px) {
  /* due select per riga, nessuno scroll orizzontale */
  .t4us-tools, .t4us-tools__f, .t4us-tools__s { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
  .t4us-tools__f, .t4us-tools__s { grid-column: 1 / -1; }
  .t4us-tools__s { grid-template-columns: minmax(0, 1fr) auto; }
  .t4us-sel select { font-size: 14px; min-width: 0; padding: 0 34px 0 14px; text-overflow: ellipsis; width: 100%; }
  .t4us-count { align-self: end; text-align: right; }
}

/* --------------------------------------------------------------------------
   Scaffale e card
   -------------------------------------------------------------------------- */
.t4us-shelf { --cols: 1; --gap: clamp(14px, 1.6vw, 28px); margin-top: clamp(18px, 1.6vw, 28px); }
@media (min-width: 560px) { .t4us-shelf { --cols: 2; } }
@media (min-width: 992px) { .t4us-shelf { --cols: 3; } }
.t4us-row {
  border-bottom: 1px solid rgba(14, 20, 48, .22);
  box-shadow: 0 14px 18px -16px rgba(14, 20, 48, .35);   /* l'ombra morbida sotto il ripiano */
  column-gap: var(--gap);
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  margin-bottom: clamp(22px, 2vw, 36px);
  padding-top: 14px;
}
.t4us-card { cursor: pointer; display: flex; flex-direction: column; min-width: 0; padding: 0 0 16px; position: relative; }
.t4us-card__media { aspect-ratio: 1; background: #e3e6ef; border-radius: 16px; overflow: hidden; position: relative; }
/* la foto sta sopra il bottone che copre la card: col dito si sfoglia, col clic si apre (JS) */
.t4us-card__media { z-index: 4; }
.t4us-card__media.is-none { align-items: center; display: flex; justify-content: center; }
.t4us-card__media.is-none > span { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; opacity: .5; text-transform: uppercase; }
.t4us-card__track { display: flex; height: 100%; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scrollbar-width: none; touch-action: pan-x pan-y; width: 100%; }
.t4us-card__track::-webkit-scrollbar { display: none; }
.t4us-card__track img { display: block; flex: 0 0 100%; height: 100%; object-fit: cover; scroll-snap-align: start; scroll-snap-stop: always; user-select: none; width: 100%; }
/* tacche: quante foto e quale si vede */
.t4us-card__ticks { bottom: 12px; display: flex; gap: 4px; left: 12px; pointer-events: none; position: absolute; right: 12px; z-index: 2; }
.t4us-card__ticks i { background: rgba(255, 255, 255, .45); border-radius: 2px; box-shadow: 0 0 0 1px rgba(14, 20, 48, .16); flex: 1; height: 3px; max-width: 48px; transition: background-color .3s linear; }
.t4us-card__ticks i.is-on { background: #fff; }
.t4us-badge { background: #fff; border-radius: 999px; color: var(--t4-navy); font-family: var(--t4-mono); font-size: 11px; left: 12px; letter-spacing: .1em; line-height: 1; padding: 7px 11px; pointer-events: none; position: absolute; text-transform: uppercase; top: 12px; z-index: 2; }
.t4us-badge--riservato { background: var(--t4-navy); color: #fff; }
.t4us-badge--venduto { background: #5c6070; color: #fff; }
.t4us-card.is-sold .t4us-card__track img { filter: grayscale(1); opacity: .6; }
.t4us-card.is-sold .t4us-card__p strong { opacity: .55; text-decoration: line-through; text-decoration-thickness: 2px; }

.t4us-card__k { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; line-height: 1.3; margin: 14px 0 0; opacity: .7; text-transform: uppercase; }
.t4us .t4us-card__n { color: inherit; text-transform: none; font-family: var(--t4-head); font-size: clamp(18px, 1.35vw, 24px); font-weight: 500; letter-spacing: -.015em; line-height: 1.15; margin: 6px 0 0; overflow-wrap: anywhere; }
/* prezzo grande a sinistra, ore motore a destra */
.t4us-card__fig { align-items: flex-end; border-top: 1px solid var(--t4us-line); display: flex; gap: 12px 18px; justify-content: space-between; margin-top: 14px; padding-top: 14px; }
.t4us-card__p { display: grid; gap: 4px; margin: 0; min-width: 0; }
.t4us-card__p strong { font-family: var(--t4-head); font-size: clamp(32px, 2.9vw, 50px); font-variant-numeric: tabular-nums; font-weight: 500; letter-spacing: -.035em; line-height: .95; white-space: nowrap; }
@media (max-width: 559px) { .t4us-card__p strong { font-size: 42px; } }
.t4us-card__p.is-text strong { font-size: clamp(20px, 1.6vw, 26px); letter-spacing: -.015em; line-height: 1.1; white-space: normal; }
.t4us-card__p small { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .04em; opacity: .65; }
.t4us-card__h { display: grid; flex: 0 0 auto; gap: 4px; justify-items: end; margin: 0; text-align: right; }
.t4us-card__h b { font-family: var(--t4-head); font-size: clamp(20px, 1.6vw, 26px); font-variant-numeric: tabular-nums; font-weight: 500; letter-spacing: -.02em; line-height: 1; }
.t4us-card__h span { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .06em; opacity: .65; text-transform: uppercase; white-space: nowrap; }
.t4us-card__who { align-items: baseline; display: flex; flex-wrap: wrap; gap: 4px 10px; margin: 12px 0 0; min-width: 0; }
.t4us-card__who span { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; opacity: .65; text-transform: uppercase; }
.t4us-card__who b { font-family: var(--t4-head); font-size: 15px; font-weight: 500; min-width: 0; overflow-wrap: anywhere; }
.t4us-card__loc { margin-top: 4px; }
.t4us-card__open {
  align-items: center;
  background: none;
  border: 0;
  border-top: 1px solid var(--t4us-line);
  color: var(--t4-navy);
  cursor: pointer;
  display: flex;
  font-family: var(--t4-mono);
  font-size: 11px;
  gap: 6px;
  justify-content: space-between;
  letter-spacing: .06em;
  margin-top: auto;
  min-height: 44px;
  padding: 0;
  text-align: left;
  text-transform: uppercase;
  width: 100%;
}
.t4us-card__fig, .t4us-card__who { margin-bottom: 14px; }
.t4us-card__fig + .t4us-card__who { margin-top: 0; }
.t4us-card__open svg { flex: 0 0 auto; height: 12px; transition: transform var(--t4-dur) var(--t4-ease); width: 12px; }
/* tutta la card apre la scheda (un solo bottone, con il nome per i lettori di schermo) */
.t4us-card__open::after { content: ""; inset: 0; position: absolute; z-index: 3; }
.t4us-card__open:focus-visible { outline: none; }
.t4us-card:focus-within { border-radius: 16px; outline: 2px solid var(--t4-blue); outline-offset: 4px; }
@media (hover: hover) {
  .t4us-card:hover .t4us-card__open { color: var(--t4-blue); }
  .t4us-card:hover .t4us-card__open svg { transform: translate(2px, -2px); }
}
/* card che entrano dopo un filtro: opacità e 12px, una volta */
@media (prefers-reduced-motion: no-preference) {
  .t4us-card.is-new { animation: t4us-in .5s var(--t4-ease-out) both; animation-delay: calc(var(--i, 0) * 40ms); }
}
@keyframes t4us-in { from { opacity: 0; transform: translateY(12px); } }

/* "Non trovi il kart giusto?": un quadrato tratteggiato a fine scaffale */
.t4us-card--alert { cursor: default; }
.t4us-card--alert .t4us-card__media { background: transparent; border: 1.5px dashed rgba(25, 43, 136, .35); }
.t4us-alertbox { display: flex; flex-direction: column; height: 100%; justify-content: flex-end; padding: clamp(20px, 2vw, 32px); }
.t4us-alertbox h3 { font-family: var(--t4-head); font-size: clamp(22px, 1.8vw, 30px); font-weight: 500; letter-spacing: -.02em; line-height: 1.05; margin: 0; }
.t4us-alertbox p { font-size: 14px; line-height: 1.55; margin: 12px 0 20px; max-width: 30ch; opacity: .75; }
.t4us-alertbox .t4-pill { align-self: flex-start; }

.t4us-none { font-size: 14px; margin: 24px 0 0; }
.t4us-none[hidden] { display: none; }
.t4us-none button { background: none; border: 0; color: var(--t4-blue); cursor: pointer; font: inherit; min-height: 44px; padding: 0; text-decoration: underline; }

/* nessun annuncio: messaggio e "Avvisami" (come prima) */
.t4us-empty { background: #fff; border-radius: 24px; display: grid; gap: 28px 56px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); margin-top: 36px; padding: clamp(24px, 3vw, 48px); }
.t4us-empty h3 { font-family: var(--t4-head); font-size: clamp(26px, 2.4vw, 40px); font-weight: 500; letter-spacing: -.025em; line-height: 1; margin: 0; text-transform: uppercase; }
.t4us-empty p { font-size: 14px; line-height: 1.6; margin: 14px 0 0; opacity: .75; }
@media (max-width: 767px) { .t4us-empty { grid-template-columns: minmax(0, 1fr); } }

/* --------------------------------------------------------------------------
   Scheda grande dell'usato (dentro .t4fx-sheet)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
  .t4fx-sheet.t4us-dlg {
    border-radius: 24px;
    box-shadow: 0 30px 80px rgba(14, 20, 48, .35);
    height: auto;
    inset: 0;
    margin: auto;
    max-height: calc(100vh - 48px);
    max-height: calc(100dvh - 48px);
    width: min(1240px, calc(100vw - 48px));
  }
}
/* il bottone di chiusura resta in alto a destra senza spingere giù il contenuto */
.t4us-dlg .t4fx-sheet__close { float: none; margin: 16px 16px -60px auto; }
.t4us-dlg__body { padding: 0; }
.t4us-d { display: grid; gap: 0; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 992px) {
  .t4us-d { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
  /* la galleria resta ferma mentre si scorrono i dati */
  .t4us-d__gal { align-self: start; position: sticky; top: 0; }
}
.t4us-d__gal { padding: clamp(16px, 2vw, 28px); }
.t4us-d__main { aspect-ratio: 1; background: #e3e6ef; border-radius: 18px; overflow: hidden; position: relative; }
@media (max-width: 991px) { .t4us-d__main { aspect-ratio: 4 / 3; } }
.t4us-d__main.is-none { align-items: center; display: flex; justify-content: center; }
.t4us-d__main.is-none > span { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; opacity: .5; text-transform: uppercase; }
.t4us-d__track { display: flex; height: 100%; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scrollbar-width: none; width: 100%; }
.t4us-d__track::-webkit-scrollbar { display: none; }
.t4us-d__track:focus-visible { outline: 2px solid var(--t4-blue); outline-offset: -4px; }
.t4us-d__track img { display: block; flex: 0 0 100%; height: 100%; object-fit: cover; scroll-snap-align: start; scroll-snap-stop: always; user-select: none; width: 100%; }
.t4us-d.is-sold .t4us-d__track img { filter: grayscale(1); }
.t4us-d__arrow { align-items: center; background: #fff; border: 0; border-radius: 50%; box-shadow: 0 6px 18px rgba(14, 20, 48, .2); color: var(--t4-navy); cursor: pointer; display: grid; height: 44px; justify-items: center; padding: 0; position: absolute; top: 50%; transform: translateY(-50%); transition: background-color var(--t4-dur) var(--t4-ease), color var(--t4-dur) var(--t4-ease); width: 44px; z-index: 2; }
.t4us-d__arrow--prev { left: 14px; }
.t4us-d__arrow--next { right: 14px; }
.t4us-d__arrow:hover { background: var(--t4-navy); color: #fff; }
.t4us-d__arrow:focus-visible { outline: 2px solid var(--t4-blue); outline-offset: 3px; }
.t4us-d__arrow svg { height: 18px; width: 18px; }
.t4us-d__count { background: rgba(14, 20, 48, .7); border-radius: 999px; bottom: 14px; color: #fff; font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; line-height: 1; padding: 7px 11px; position: absolute; right: 14px; z-index: 2; }
.t4us-d__main .t4us-badge { left: 14px; top: 14px; }
.t4us-d__thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; padding: 2px; scrollbar-width: none; }
.t4us-d__thumbs::-webkit-scrollbar { display: none; }
.t4us-d__thumbs button { background: #e3e6ef; border: 2px solid transparent; border-radius: 10px; cursor: pointer; flex: 0 0 76px; height: 76px; overflow: hidden; padding: 0; transition: border-color var(--t4-dur) var(--t4-ease); }
.t4us-d__thumbs button[aria-current="true"] { border-color: var(--t4-blue); }
.t4us-d__thumbs button:focus-visible { outline: 2px solid var(--t4-blue); outline-offset: 2px; }
.t4us-d__thumbs img { display: block; height: 100%; object-fit: cover; width: 100%; }

.t4us-d__info { padding: clamp(8px, 1vw, 28px) clamp(20px, 3vw, 44px) 44px; }
@media (min-width: 992px) { .t4us-d__info { padding-left: clamp(8px, 1vw, 16px); padding-top: clamp(28px, 2.6vw, 44px); } }
.t4us-d__k { font-family: var(--t4-mono); font-size: 12px; letter-spacing: .1em; margin: 0; opacity: .75; padding-right: 56px; text-transform: uppercase; }
.t4us-d__t { color: var(--t4-navy); font-family: var(--t4-head); font-size: clamp(28px, 2.6vw, 44px); font-weight: 500; letter-spacing: -.025em; line-height: 1.02; margin: 12px 0 0; padding-right: 56px; }
.t4us-d__price { align-items: baseline; display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 18px 0 0; }
.t4us-d__price strong { font-family: var(--t4-head); font-size: clamp(44px, 4.4vw, 76px); font-variant-numeric: tabular-nums; font-weight: 500; letter-spacing: -.04em; line-height: .9; }
.t4us-d__price.is-text strong { font-size: clamp(26px, 2.2vw, 36px); letter-spacing: -.02em; line-height: 1.05; }
.t4us-d__price span { font-family: var(--t4-mono); font-size: 12px; letter-spacing: .04em; opacity: .7; }
.t4us-d.is-sold .t4us-d__price strong { opacity: .55; text-decoration: line-through; text-decoration-thickness: 3px; }
.t4us-d__who { align-items: baseline; display: flex; flex-wrap: wrap; font-family: var(--t4-head); font-size: 17px; gap: 4px 10px; margin: 16px 0 0; }
.t4us-d__who span { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; opacity: .65; text-transform: uppercase; }
/* i numeri chiave: anno, ore motore e telaio, condizioni */
.t4us-d__facts { border-top: 1px solid var(--t4-hair); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 22px 0 0; }
.t4us-d__facts > div { border-bottom: 1px solid var(--t4-hair); display: grid; gap: 6px; padding: 14px 12px 14px 0; }
.t4us-d__facts dt { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; opacity: .65; text-transform: uppercase; }
.t4us-d__facts dd { font-family: var(--t4-head); font-size: clamp(22px, 1.8vw, 30px); font-weight: 500; letter-spacing: -.02em; line-height: 1; margin: 0; }
.t4us-d__cta { display: flex; flex-wrap: wrap; gap: 10px 12px; margin-top: 26px; }
.t4us-d__cta .t4-pill[aria-expanded="true"] { box-shadow: 0 0 0 2px var(--t4-page), 0 0 0 4px var(--t4-blue); }
@media (max-width: 559px) {
  .t4us-d__cta .t4-pill { justify-content: space-between; width: 100%; }
}
.t4us-d__form { background: #fff; border-radius: 18px; margin-top: 18px; padding: clamp(18px, 2vw, 28px); }
.t4us-d__form[hidden] { display: none; }
.t4us-d__sold { background: #fff; border-radius: 18px; margin-top: 24px; padding: clamp(18px, 2vw, 28px); }
.t4us-d__h3 { color: var(--t4-navy); font-family: var(--t4-head); font-size: clamp(20px, 1.6vw, 26px); font-weight: 500; letter-spacing: -.015em; line-height: 1.1; margin: 0; }
.t4us-d__note { font-size: 14px; line-height: 1.55; margin: 8px 0 0; opacity: .75; }
.t4us-d__h { color: var(--t4-blue); font-family: var(--t4-mono); font-size: 12px; font-weight: 400; letter-spacing: .12em; margin: 30px 0 0; text-transform: uppercase; }
.t4us-d__text { font-size: 15px; line-height: 1.65; margin: 10px 0 0; max-width: 62ch; white-space: pre-line; }
.t4us-d__dl { margin: 8px 0 0; }
.t4us-d__dl > div { border-bottom: 1px solid var(--t4-hair); display: flex; gap: 16px; justify-content: space-between; padding: 11px 0; }
.t4us-d__dl dt { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .08em; opacity: .65; text-transform: uppercase; }
.t4us-d__dl dd { font-size: 14px; margin: 0; min-width: 0; overflow-wrap: anywhere; text-align: right; }
.t4us-d__dl a { color: var(--t4-blue); }
.t4us-d__ul { margin: 8px 0 0; padding-left: 18px; }
.t4us-d__ul li { font-size: 14px; line-height: 1.5; padding: 4px 0; }
/* desktop: la scheda "si apre" dalla card cliccata (transform-origin dal JS) */
@media (prefers-reduced-motion: no-preference) and (min-width: 768px) {
  .t4fx-sheet.t4us-dlg[open] { animation: t4us-grow .5s var(--t4-ease-out) both; }
  .t4fx-sheet.t4us-dlg.is-closing { animation: t4us-shrink .28s var(--t4-ease) both; }
}
@keyframes t4us-grow { from { opacity: 0; transform: scale(.35); } 40% { opacity: 1; } }
@keyframes t4us-shrink { to { opacity: 0; transform: scale(.94); } }

/* pannello "Avvisami" (pannello laterale standard di t4fx.sheet) */
.t4us-alert__body { clear: both; padding: 8px clamp(22px, 3vw, 40px) 40px; }
.t4us-alert__t { color: var(--t4-navy); font-family: var(--t4-head); font-size: clamp(28px, 2.6vw, 40px); font-weight: 500; letter-spacing: -.025em; line-height: 1; margin: 0; }

/* --------------------------------------------------------------------------
   Moduli di richiesta (acquisto, informazioni, avvisami)
   -------------------------------------------------------------------------- */
.t4us-f { display: grid; gap: 14px; margin-top: 16px; position: relative; }
.t4us-f__row { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 560px) { .t4us-f__row { grid-template-columns: minmax(0, 1fr); } }
.t4us-f__f { display: grid; gap: 6px; min-width: 0; }
.t4us-f__f > span { font-family: var(--t4-mono); font-size: 11px; letter-spacing: .1em; opacity: .7; text-transform: uppercase; }
.t4us-f input[type="text"], .t4us-f input[type="email"], .t4us-f input[type="tel"], .t4us-f select, .t4us-f textarea {
  background: #fff;
  border: 1px solid rgba(14, 20, 48, .2);
  border-radius: 12px;
  color: var(--t4-navy);
  font-family: inherit;
  font-size: 16px;
  min-height: 48px;
  padding: 11px 14px;
  width: 100%;
}
.t4us-f textarea { min-height: 96px; resize: vertical; }
.t4us-f input:focus-visible, .t4us-f select:focus-visible, .t4us-f textarea:focus-visible { border-color: var(--t4-blue); outline: 2px solid var(--t4-blue); outline-offset: 1px; }
.t4us-f [aria-invalid="true"] { border-color: #b3261e; }
.t4us-f__check { align-items: flex-start; display: flex; font-size: 13px; gap: 10px; line-height: 1.45; }
.t4us-f__check input { accent-color: var(--t4-blue); flex: 0 0 auto; height: 18px; margin: 1px 0 0; width: 18px; }
.t4us-f__check a { color: var(--t4-blue); }
.t4us-f__hp { height: 1px; left: -10000px; overflow: hidden; position: absolute; width: 1px; }
.t4us-f__err { color: #b3261e; font-family: var(--t4-mono); font-size: 12px; margin: -6px 0 0; }
.t4us-f__msg { border-radius: 12px; font-size: 14px; line-height: 1.5; margin: 0; padding: 12px 14px; }
/* vuoto resta nell'albero accessibile (role=status), senza occupare posto */
.t4us-f__msg:empty { clip: rect(0 0 0 0); height: 1px; overflow: hidden; padding: 0; position: absolute; width: 1px; }
.t4us-f__msg.is-ok { background: rgba(36, 72, 216, .1); color: var(--t4-ink); }
.t4us-f__msg.is-err { background: rgba(179, 38, 30, .08); color: #8c1d18; }
.t4us-f .t4-pill { justify-self: start; }
.t4us-f .t4-pill[aria-busy="true"] { opacity: .6; pointer-events: none; }
@media (max-width: 559px) { .t4us-f .t4-pill { justify-content: space-between; justify-self: stretch; } }

@media (prefers-reduced-motion: reduce) {
  .t4us *, .t4us-dlg * { animation: none !important; transition: none !important; }
}