/* =============================================================================
   Formulaire de contact modernisé — VHU Center
   Carte autonome (fond clair) lisible sur n'importe quelle section.
   Accent : vert de la charte (#39b35e).
   ========================================================================== */
.vhu-contact {
  --vhu-green: #39b35e;
  --vhu-green-dark: #2e9d50;
  --vhu-ink: #1f2733;
  --vhu-muted: #6b7280;
  --vhu-border: #d9dee5;
  --vhu-red: #d63638;
  --vhu-bg: #ffffff;
  max-width: 680px;
  margin: 0 auto;
  text-align: left;
}

/* Carte */
.vhu-form,
.vhu-success {
  background: var(--vhu-bg);
  border-radius: 16px;
  padding: 38px 40px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .14), 0 8px 24px rgba(0, 0, 0, .08);
}

/* Honeypot anti-spam : masqué visuellement mais présent dans le DOM */
.vhu-hp {
  position: absolute !important;
  left: -5000px !important;
  width: 1px; height: 1px;
  overflow: hidden;
}

/* Grille des champs */
.vhu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 22px;
}
.vhu-field { display: flex; flex-direction: column; }
.vhu-field--full { grid-column: 1 / -1; }

.vhu-field label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--vhu-ink);
  margin: 0 0 7px;
}
.vhu-req { color: var(--vhu-green); font-weight: 700; }

/* Champs */
.vhu-field input,
.vhu-field textarea {
  width: 100%;
  box-sizing: border-box;
  font: inherit;
  font-size: 15px;
  color: var(--vhu-ink);
  background: #f7f9fb;
  border: 1.5px solid var(--vhu-border);
  border-radius: 10px;
  padding: 13px 15px;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
  -webkit-appearance: none;
  appearance: none;
}
.vhu-field textarea { resize: vertical; min-height: 130px; line-height: 1.5; }
.vhu-field input::placeholder,
.vhu-field textarea::placeholder { color: #9aa4b0; }

.vhu-field input:focus,
.vhu-field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--vhu-green);
  box-shadow: 0 0 0 4px rgba(57, 179, 94, .16);
}

/* États validation */
.vhu-field.is-valid input,
.vhu-field.is-valid textarea {
  border-color: var(--vhu-green);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%2339b35e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px top 15px;
  padding-right: 42px;
}
.vhu-field.is-valid textarea { background-position: right 13px top 13px; }

.vhu-field.is-invalid input,
.vhu-field.is-invalid textarea {
  border-color: var(--vhu-red);
  background: #fff6f6;
}
.vhu-field.is-invalid input:focus,
.vhu-field.is-invalid textarea:focus {
  box-shadow: 0 0 0 4px rgba(214, 54, 56, .14);
}

.vhu-msg {
  min-height: 16px;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--vhu-red);
}

/* Alerte globale */
.vhu-alert {
  border-radius: 10px;
  padding: 13px 16px;
  margin: 0 0 22px;
  font-size: 14px;
}
.vhu-alert--error { background: #fdecec; color: #a4262c; border: 1px solid #f3c9c9; }

/* Actions */
.vhu-actions { margin-top: 24px; }
.vhu-note { margin: 14px 2px 0; font-size: 12.5px; color: var(--vhu-muted); }
.vhu-note .vhu-req { color: var(--vhu-green); }

/* Bouton */
.vhu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  background: var(--vhu-green);
  padding: 15px 34px;
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(57, 179, 94, .32);
  transition: transform .15s ease, background .18s ease, box-shadow .18s ease, opacity .18s ease;
}
.vhu-btn:hover { background: var(--vhu-green-dark); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(57, 179, 94, .38); }
.vhu-btn:active { transform: translateY(0); }
.vhu-submit { width: 100%; }

/* Spinner (état envoi) */
.vhu-btn__spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255, 255, 255, .45);
  border-top-color: #fff;
  border-radius: 50%;
  display: none;
  animation: vhu-spin .7s linear infinite;
}
.vhu-form.is-sending .vhu-btn { opacity: .85; cursor: progress; transform: none; }
.vhu-form.is-sending .vhu-btn__spinner { display: inline-block; }
@keyframes vhu-spin { to { transform: rotate(360deg); } }

/* ---- Carte de confirmation ---- */
.vhu-success { text-align: center; padding: 54px 40px; }
.vhu-success h3 { margin: 22px 0 10px; font-size: 26px; color: var(--vhu-ink); }
.vhu-success p { margin: 0 0 26px; color: var(--vhu-muted); font-size: 15px; line-height: 1.6; }
.vhu-success__icon { width: 84px; height: 84px; margin: 0 auto; }
.vhu-success__icon svg { width: 100%; height: 100%; }
.vhu-success__circle {
  stroke: var(--vhu-green); stroke-width: 2.5;
  stroke-dasharray: 151; stroke-dashoffset: 151;
  animation: vhu-draw .5s ease forwards;
}
.vhu-success__check {
  stroke: var(--vhu-green); stroke-width: 3.5;
  stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 40; stroke-dashoffset: 40;
  animation: vhu-draw .35s .45s ease forwards;
}
@keyframes vhu-draw { to { stroke-dashoffset: 0; } }

/* Responsive */
@media (max-width: 767px) {
  .vhu-form, .vhu-success { padding: 26px 20px; }
  .vhu-grid { grid-template-columns: 1fr; }
}