/* ==================================================================
   components.css
   Componenti riutilizzabili in stile Material 3:
   bottoni (+ ripple), chip, card, campi form, FAB WhatsApp,
   selettore lingua, snackbar, galleria (dialog).
   ================================================================== */

/* ------------------------------------------------------------------
   Bottoni
   ------------------------------------------------------------------ */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--md-on-surface);
  --btn-border: transparent;

  position: relative;
  overflow: hidden;               /* contiene l'onda del ripple */
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;               /* area di tocco minima consigliata */
  padding: 0.75rem 1.5rem;
  border: 1.5px solid var(--btn-border);
  border-radius: var(--radius-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font: 700 1rem/1.2 var(--font-body);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    transform 0.2s var(--ease-out),
    box-shadow 0.3s var(--ease-out),
    background-color 0.3s var(--ease-out);
}

.btn i {
  font-size: 1.3em;
}

/* State layer Material: velo del colore del testo su hover/focus */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: currentColor;
  opacity: 0;
  transition: opacity 0.2s;
}

.btn:hover::before { opacity: 0.08; }
.btn:focus-visible::before { opacity: 0.12; }
.btn:active { transform: scale(0.98); }

.btn--filled {
  --btn-bg: var(--md-primary);
  --btn-fg: var(--md-on-primary);
  box-shadow: var(--elev-1);
}

.btn--filled:hover {
  box-shadow: var(--elev-2);
  transform: translateY(-1px);
}

.btn--filled:active {
  transform: translateY(0) scale(0.98);
}

.btn--outlined {
  --btn-border: var(--md-outline-strong);
}

.btn--tonal {
  --btn-bg: var(--md-primary-container);
  --btn-fg: var(--md-on-primary-container);
}

.btn--block {
  width: 100%;
}

/* Onda del ripple, creata da ui.js nel punto del clic */
.ripple {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.22;
  transform: scale(0);
  animation: ripple 0.6s var(--ease-out) forwards;
  pointer-events: none;
}

@keyframes ripple {
  to {
    transform: scale(2.6);
    opacity: 0;
  }
}

/* ------------------------------------------------------------------
   Chip (dotazioni delle case, servizi)
   ------------------------------------------------------------------ */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 32px;
  padding: 0.3rem 0.85rem;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-pill);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--md-on-surface-variant);
  background: var(--md-surface);
}

.chip i {
  font-size: 1.1em;
  color: var(--md-primary-text);
}

/* ------------------------------------------------------------------
   Selettore lingua IT / EN (segmented button M3)
   ------------------------------------------------------------------ */
.lang-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-pill);
  background: var(--md-surface);
}

.lang-switch button {
  min-width: 44px;
  min-height: 36px;
  padding: 0 0.7rem;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--md-on-surface-variant);
  font: 700 0.85rem var(--font-body);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background-color 0.25s, color 0.25s;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--md-primary);
  color: var(--md-on-primary);
}

/* ------------------------------------------------------------------
   Campi del form (etichetta sopra, errore sotto)
   ------------------------------------------------------------------ */
.field {
  display: grid;
  align-content: start; /* campi affiancati: etichette e caselle alla stessa altezza */
  gap: 0.4rem;
}

.field label {
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--md-on-surface);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 52px;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--md-outline-strong);
  border-radius: var(--radius-field);
  background: var(--md-surface);
  color: var(--md-on-surface);
  font: 500 1rem var(--font-body);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--md-on-surface-variant);
  opacity: 1;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--md-primary-text);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--md-primary) 35%, transparent);
}

.field [aria-invalid="true"] {
  border-color: var(--md-error);
}

/* Campo data: casella di testo + pulsante calendario all'interno, a destra.
   Il calendario nativo è trasparente e sta esattamente sopra al pulsante:
   sul telefono il tocco lo apre direttamente. */
.date-field {
  position: relative;
}

.date-field input[type="text"] {
  padding-right: 3.25rem;
  font-variant-numeric: tabular-nums;
}

.date-field__btn,
.date-field__picker {
  position: absolute;
  top: 50%;
  right: 6px;
  width: 42px;
  height: 42px;
  transform: translateY(-50%);
}

.date-field__btn {
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: calc(var(--radius-field) - 4px);
  background: transparent;
  color: var(--md-primary-text);
  font-size: 1.35rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.date-field__btn:hover,
.date-field:focus-within .date-field__btn {
  background: color-mix(in srgb, var(--md-primary) 14%, transparent);
}

.field .date-field__picker {
  width: 42px;
  height: 42px;
  min-height: 0;
  padding: 0;
  border: 0;
  opacity: 0;
  cursor: pointer;
}

.field-error {
  min-height: 1.2em;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--md-error);
}

.field-hint {
  font-size: 0.85rem;
  color: var(--md-on-surface-variant);
}

/* ------------------------------------------------------------------
   FAB WhatsApp (sempre visibile in basso a destra)
   ------------------------------------------------------------------ */
.fab-whatsapp {
  position: fixed;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: var(--z-fab);
  display: inline-grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border-radius: 20px;            /* FAB Material: angoli morbidi */
  background: #25d366;            /* verde ufficiale WhatsApp */
  color: #0b2e17;
  font-size: 2rem;
  text-decoration: none;
  box-shadow: var(--elev-3);
  transition: transform 0.3s var(--ease-out), opacity 0.3s, visibility 0.3s;
}

.fab-whatsapp:hover {
  transform: translateY(-3px);
}

/* Nascosto vicino ai contatti e al footer (ui.js), dove WhatsApp c'è già */
.fab-whatsapp.is-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(24px);
}

/* Telefono: più piccolo, copre meno testo */
@media (max-width: 767px) {
  .fab-whatsapp {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    font-size: 1.7rem;
  }
}

.fab-whatsapp:active {
  transform: scale(0.96);
}

/* ------------------------------------------------------------------
   Snackbar (messaggi brevi: errori, conferme)
   ------------------------------------------------------------------ */
.snackbar {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: var(--z-snackbar);
  max-width: min(560px, calc(100vw - 32px));
  padding: 0.9rem 1.25rem;
  border-radius: 14px;
  background: var(--md-on-surface);
  color: var(--md-surface);
  font-weight: 600;
  box-shadow: var(--elev-3);
  visibility: hidden;
  transform: translate(-50%, calc(100% + 48px));
  transition: transform 0.4s var(--ease-out), visibility 0.4s;
}

.snackbar.is-open {
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ------------------------------------------------------------------
   Galleria foto (elemento nativo <dialog>)
   ------------------------------------------------------------------ */
.lightbox {
  width: min(1100px, 100vw);
  max-width: 100vw;
  max-height: 100dvh;
  padding: 0;
  border: 0;
  background: transparent;
  color: #f4efe8;
  overflow: visible;
}

.lightbox::backdrop {
  background: rgb(15 13 11 / 0.88);
  backdrop-filter: blur(6px);
}

.lightbox__figure {
  display: grid;
  justify-items: center;
  gap: 0.9rem;
  margin: 0;
  padding: 56px 16px 24px;
}

.lightbox__img {
  /* le foto piccole vengono comunque mostrate a una dimensione leggibile */
  width: auto;
  min-width: min(460px, 88vw);
  max-width: 100%;
  max-height: 76dvh;
  object-fit: contain;
  border-radius: var(--radius-card);
  background: #000;
}

.lightbox__caption {
  font-weight: 600;
  text-align: center;
}

.lightbox__btn {
  position: absolute;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: rgb(255 255 255 / 0.14);
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
}

.lightbox__btn:hover {
  background: rgb(255 255 255 / 0.26);
}

.lightbox__btn--close { top: 4px; right: 16px; }
.lightbox__btn--prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__btn--next { right: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__btn[hidden] { display: none; }