:root {
  --color-primary: #2ECC71;
  --color-danger: #e74c3c;
  --color-bg: #2C3E50;
  --color-light: #ECF0F1;
  --color-text: #F8F8F8;
}

#contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--color-bg);
  padding: 40px;
  border-radius: 12px;
  color: var(--color-text);
  font-family: 'Lato', sans-serif;
}

#contact-form .form-group {
  margin-bottom: 24px;
  position: relative;
}

#contact-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--color-text);
}

#contact-form input,
#contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #1B2631;
  border-radius: 8px;
  background-color: var(--color-light);
  color: var(--color-bg);
  font-size: 16px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#contact-form input:focus,
#contact-form textarea:focus {
  outline: none;
}

#contact-form input.valid,
#contact-form textarea.valid {
  border-color: var(--color-primary);
  box-shadow: 0 0 6px rgba(46, 204, 113, 0.6);
}

#contact-form input.invalid,
#contact-form textarea.invalid {
  border-color: var(--color-danger);
  box-shadow: 0 0 6px rgba(231, 76, 60, 0.6);
}

#contact-form .help-message {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: #95a5a6;
  font-style: italic;
}

#contact-form .error-message {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-danger);
  font-weight: 500;
}

#contact-form .btn-submit {
  display: block;
  width: 100%;
  padding: 14px;
  background-color: var(--color-primary);
  color: var(--color-text);
  font-size: 18px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

#contact-form .btn-submit:disabled {
  background-color: #95a5a6;
  cursor: not-allowed;
}

#contact-form .btn-submit:hover:not(:disabled) {
  background-color: #27ae60;
  transform: scale(1.02);
}

#form-status {
  margin-top: 16px;
  font-size: 15px;
  font-weight: 600;
}

#form-status.success {
  color: var(--color-primary);
}

#form-status.error {
  color: var(--color-danger);
}

#form-status.loading::before {
  content: "Envoi en cours…";
  color: var(--color-light);
  opacity: 0.8;
}

#form-status.fade-out { opacity: 0; transition: opacity 1.5s ease; /* durée et fluidité du fondu */ }

/* Page Plan de site */ 
/* Conteneur global */
.rank-math-html-sitemap {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  font-family: "Roboto", sans-serif;
  color: #f0f0f0; /* texte clair pour contraste */
}

/* Titres des sections */
.rank-math-html-sitemap__title {
  font-size: 1.6rem;
  font-weight: 600;
  color: #ffffff; /* blanc pur pour titres */
  border-bottom: 2px solid #444; /* ligne discrète adaptée au fond sombre */
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
}

/* Liste */
.rank-math-html-sitemap__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Items */
.rank-math-html-sitemap__item {
  margin: 0.5rem 0;
}

/* Liens */
.rank-math-html-sitemap__link {
  text-decoration: none;
  color: #66ccff; /* bleu clair pour contraste et cohérence */
  transition: color 0.3s ease;
}

.rank-math-html-sitemap__link:hover {
  color: #ffcc00; /* jaune doré premium au survol */
}

/* Sections encadrées */
.rank-math-html-sitemap__section {
  background: rgba(255, 255, 255, 0.05); /* léger contraste transparent */
  padding: 1rem;
  border-radius: 6px;
  margin-bottom: 2rem;
}