/* ============================================
   FORM.CSS  v3.0
   Form multi-step prenotazione — mobile-first
   Palette: slate + teal
   Container: --container-narrow (680px)
   ============================================ */

/* ============================================
   SEZIONE CONTENITORE
   ============================================ */

#form-container {
  background-color: var(--color-gray-50);
  background-image:
    linear-gradient(180deg, rgba(14,165,160,0.03) 0%, transparent 40%);
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-16) 0;
}

.form-wrapper {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ============================================
   INTESTAZIONE FORM
   ============================================ */

.form-header {
  margin-bottom: var(--space-8);
  text-align: center;
}

.form-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3.5vw, 2.125rem);
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: -0.025em;
  line-height: 1.18;
}

.form-header p {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-top: var(--space-2);
  line-height: 1.6;
  font-weight: 500;
}

/* ============================================
   PROGRESS BAR
   ============================================ */

.progress-bar-track {
  width: 100%;
  height: 3px;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.35s var(--ease-out);
  width: 25%;
  position: relative;
}

/* Glow sull'estremità della barra */
.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px 3px rgba(14,165,160,0.50);
}

/* ============================================
   CARD FORM
   ============================================ */

.form-card {
  background-color: var(--color-white);
  border-radius: 20px;
  border: 1px solid rgba(0,0,0,0.05);
  box-shadow:
    0 1px 3px rgba(0,0,0,0.03),
    0 6px 24px rgba(0,0,0,0.07),
    0 20px 56px rgba(0,0,0,0.04);
  padding: var(--space-8) var(--space-6);
  position: relative;
  overflow: hidden;
}

/* Sottile accent line in cima */
.form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

/* ============================================
   STEP CONTAINER
   ============================================ */

.form-steps {
  position: relative;
}

.form-step {
  display: none;
  flex-direction: column;
  gap: var(--space-5);
}

.form-step.active {
  display: flex;
  animation: step-enter 0.28s var(--ease-out) both;
}

@keyframes step-enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .form-step.active {
    animation: none;
  }
  .form-step.active .btn-back:not(.hidden) {
    animation: none;
  }
  .btn-back {
    transition: color var(--transition-fast);
  }
}

/* ============================================
   LABEL E DOMANDA STEP
   ============================================ */

.step-label {
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.115em;
  font-family: var(--font-body);
}

.step-question {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: -0.022em;
  line-height: 1.22;
  margin-top: calc(-1 * var(--space-1));
}

/* ============================================
   STEP 1 — TOGGLE URGENZA
   ============================================ */

.urgency-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.urgency-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-4) var(--space-5);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.urgency-option:hover {
  border-color: var(--color-gray-300);
  background-color: var(--color-gray-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.urgency-option:active {
  transform: scale(0.975);
}

.urgency-option.selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-subtle);
  box-shadow: var(--shadow-teal-md);
}

.urgency-option.urgent-option.selected {
  border-color: var(--color-urgent);
  background-color: var(--color-urgent-light);
  box-shadow: var(--shadow-urgent-glow);
}

.urgency-option .option-icon {
  font-size: 2.25rem;
  line-height: 1;
  display: block;
}

.urgency-option .option-label {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-gray-800);
  text-align: center;
  letter-spacing: -0.012em;
}

.urgency-option .option-desc {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  text-align: center;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.005em;
}

/* ============================================
   STEP 2 — SELEZIONE PROBLEMA
   ============================================ */

.problem-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

.problem-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 11px var(--space-4);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    border-color var(--transition-fast),
    background-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.problem-option:hover {
  border-color: var(--color-gray-300);
  background-color: var(--color-gray-50);
  transform: translateY(-1px);
}

.problem-option:active {
  transform: scale(0.975);
}

.problem-option.selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary-subtle);
  box-shadow: var(--shadow-teal-sm);
}

.problem-option .option-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.problem-option .option-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-800);
  line-height: 1.3;
  letter-spacing: -0.012em;
}

/* Campo "Altro" */
.problem-other-input {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  display: none;
}

.problem-other-input::placeholder {
  color: var(--color-gray-400);
}

.problem-other-input:hover {
  border-color: var(--color-gray-300);
}

.problem-other-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.problem-other-input.visible {
  display: block;
}

/* ============================================
   STEP 3 — POSIZIONE
   ============================================ */

.location-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.btn-geolocation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: 14px var(--space-6);
  background: var(--gradient-dark);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  letter-spacing: -0.01em;
  -webkit-tap-highlight-color: transparent;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-geolocation:hover {
  opacity: 0.88;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-geolocation:active {
  transform: scale(0.98);
  opacity: 1;
}

.btn-geolocation:focus-visible {
  box-shadow: var(--shadow-focus);
}

.btn-geolocation.success {
  background: var(--gradient-primary);
  box-shadow: var(--shadow-teal-sm);
}

/* Divisore OR */
.location-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-gray-400);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.location-divider::before,
.location-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-gray-200);
}

/* Input indirizzo manuale */
.location-input {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.location-input::placeholder {
  color: var(--color-gray-400);
}

.location-input:hover {
  border-color: var(--color-gray-300);
}

.location-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

/* ============================================
   STEP 4 — DATI UTENTE
   ============================================ */

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.input-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray-700);
  letter-spacing: -0.01em;
}

.input-field {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  outline: none;
  -webkit-appearance: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.input-field::placeholder {
  color: var(--color-gray-400);
}

.input-field:hover {
  border-color: var(--color-gray-300);
}

.input-field:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.input-field.error {
  border-color: var(--color-error);
}

.input-field.error:focus {
  box-shadow: var(--shadow-focus-error);
}

/* Messaggio errore */
.input-error-msg {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-error);
  display: none;
}

.input-error-msg.visible {
  display: block;
}

/* Nota privacy */
.privacy-note {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  line-height: 1.65;
  text-align: center;
}

.privacy-note a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(14,165,160,0.40);
  font-weight: 500;
  transition: color var(--transition-fast),
              text-decoration-color var(--transition-fast);
}

.privacy-note a:hover {
  color: var(--color-primary-dark);
  text-decoration-color: var(--color-primary-dark);
}

/* ============================================
   NAVIGAZIONE STEP
   ============================================ */

.form-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-2);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-gray-100);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-400);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2) 0;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  flex-shrink: 0;
  max-width: 8rem;
  transition:
    color var(--transition-fast),
    opacity 0.22s var(--ease-out),
    max-width 0.28s var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.btn-back:hover {
  color: var(--color-gray-700);
}

/* Collassa a larghezza zero senza occupare spazio nel layout */
.btn-back.hidden {
  max-width: 0;
  opacity: 0;
  pointer-events: none;
}

/* Animazione ingresso pulsante Indietro (step 2-4) */
@keyframes back-btn-enter {
  from {
    max-width: 0;
    opacity: 0;
  }
  to {
    max-width: 8rem;
    opacity: 1;
  }
}

.form-step.active .btn-back:not(.hidden) {
  animation: back-btn-enter 0.32s var(--ease-out) both;
}

.btn-next {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px var(--space-8);
  background: var(--gradient-primary);
  color: var(--color-white);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  letter-spacing: -0.01em;
  -webkit-tap-highlight-color: transparent;
  box-shadow: var(--shadow-teal-sm);
  position: relative;
  overflow: hidden;
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

/* Shine */
.btn-next::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 35%,
    rgba(255,255,255,0.16) 50%,
    transparent 65%
  );
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
}

.btn-next:hover:not(:disabled) {
  opacity: 0.91;
  transform: translateY(-1px);
  box-shadow: var(--shadow-teal-md);
}

.btn-next:hover:not(:disabled)::after {
  transform: translateX(100%);
}

.btn-next:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-teal-sm);
}

.btn-next:focus-visible {
  box-shadow: var(--shadow-focus);
}

.btn-next:disabled {
  background: var(--color-gray-200);
  color: var(--color-gray-400);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-next:disabled::after {
  display: none;
}

/* ============================================
   STATUS POST-SUBMIT
   ============================================ */

#status {
  background-color: var(--color-gray-50);
  background-image:
    linear-gradient(180deg, rgba(14,165,160,0.03) 0%, transparent 40%);
  border-top: 1px solid var(--color-gray-200);
  padding: var(--space-16) 0;
}

.status-wrapper {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  text-align: center;
}

.status-icon {
  font-size: 3.5rem;
  line-height: 1;
  animation: icon-pop 0.5s var(--ease-spring) both;
}

@keyframes icon-pop {
  from { transform: scale(0.6); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.status-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: -0.025em;
}

.status-message {
  font-size: var(--text-base);
  color: var(--color-gray-500);
  line-height: 1.65;
  max-width: 40ch;
}

.status-eta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-subtle);
  color: var(--color-primary-deeper);
  border: 1px solid rgba(14,165,160,0.20);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
  letter-spacing: -0.01em;
}

/* ============================================
   STEP 4 — Invia richiesta: urgent treatment
   ============================================ */

[data-step="4"] .btn-next:not(:disabled) {
  background: var(--gradient-urgent);
  box-shadow: var(--shadow-urgent);
}

[data-step="4"] .btn-next:not(:disabled):hover {
  box-shadow: var(--shadow-urgent-glow);
}

[data-step="4"] .btn-next:not(:disabled):focus-visible {
  box-shadow: var(--shadow-focus-urgent);
}

@media (prefers-reduced-motion: no-preference) {
  [data-step="4"] .btn-next:not(:disabled) {
    animation: pulse-ring 2s ease-out 3;
    animation-delay: 400ms;
  }
}

/* ============================================
   RESPONSIVE — Mobile (max 639px)
   ============================================ */

@media (max-width: 639px) {

  /* Meno spazio verticale — la pagina scorre meglio su mobile */
  #form-container {
    padding: var(--space-10) 0;
  }

  /* Card con padding laterale ridotto */
  .form-card {
    padding: var(--space-6) var(--space-5);
    border-radius: var(--radius-lg);
  }

  /* Domanda step leggermente più piccola */
  .step-question {
    font-size: var(--text-lg);
  }

  /* Bottone Continua — altezza minima per tap facile */
  .btn-next {
    padding: 15px var(--space-6);
    font-size: var(--text-sm);
  }
}

/* ============================================
   RESPONSIVE — Tablet+ (min 640px)
   ============================================ */

@media (min-width: 640px) {

  #form-container {
    padding: var(--space-20) 0;
  }

  .form-card {
    padding: var(--space-10) var(--space-10);
  }

  .step-question {
    font-size: var(--text-2xl);
  }

  .urgency-options {
    gap: var(--space-5);
  }

  .problem-options {
    grid-template-columns: 1fr 1fr 1fr;
  }
}