/* Réinitialisation et configuration de base */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto', sans-serif; /* Police 'Roboto' forcée pour la cohérence */
  font-weight: 400; /* Poids normal par défaut */
  background-color: #f0f2f5;
  color: #333;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  flex-grow: 1;
}

/* En-tête */
header {
  padding: 1.5rem 0;
}
.logo-container {
  text-align: center;
}
.logo-container .tagline {
  margin-top: 0.75rem;
  font-size: 1.1rem;
  color: #555;
}
.logo {
  max-width: 120px;
  height: auto;
  display: inline-block;
}

/* Carte principale (Logo + Formulaire) */
.content-card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin-top: 2rem;
}

/* Section Formulaire */
.form-section {
  padding: 0 2rem 2rem 2rem;
}
.form-section h2 {
  font-size: 1.6rem;
  color: #1a237e;
  text-align: center;
  padding-top: 1rem;
  font-weight: 700;
  /* Espacement vertical équilibré */
  margin: 2.5rem 0;
}
.form-section p {
  font-size: 1rem;
  color: #555;
  text-align: center;
  margin-bottom: 2rem;
}
.form-section h4 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #333;
  text-align: center;
  margin-top: 2.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #e0e0e0;
}
.form-section h4:first-of-type {
    margin-top: 1rem;
}

/* --- Styles du formulaire --- */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 1rem; /* Taille de police standard mais lisible */
  font-weight: 700;  /* Texte en gras */
  color: #333;
  margin-bottom: 0.5rem;
  text-align: left;
}
.form-example { font-size: 0.8rem; color: #777; margin-top: -0.25rem; margin-bottom: 0.5rem; }

.form-group.file-upload-group label { text-align: center; } /* Centre seulement le label du groupe upload */
.form-group.file-upload-group .form-example { text-align: center; }

.form-group input[type="text"], .form-group input[type="email"], .form-group input[type="tel"], .form-group textarea, .form-group select {
  width: 100%;
  padding: 1rem;
  border: 1px solid #ced4da;
  border-radius: 6px;
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  color: #2b2b2b;
  background-color: #fff;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: #3949ab;
  box-shadow: 0 0 0 0.2rem rgba(57, 73, 171, 0.25);
}

/* Styles pour le bouton d'upload personnalisé (RESTAURÉ) */
.form-group input[type="file"] {
    display: none;
}
.file-label {
    display: inline-block;
    padding: 0.8rem 2.5rem; /* Bouton plus grand */
    font-size: 1rem;
    background-color: #5c6bc0;
    color: white;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
    text-align: center;
}
.file-label:hover {
    background-color: #3949ab;
}
.file-name-display {
    display: block;
    text-align: center;
    margin-top: 0.75rem;
    font-style: italic;
    color: #555;
    font-size: 0.9rem;
}

.form-group textarea { resize: vertical; min-height: 120px; }
.error-message { color: #d93025; font-size: 0.8rem; margin-top: 0.5rem; min-height: 1em; display: none; }
.error-active { display: block; }

button[type="submit"] {
  display: block;
  width: 100%;
  max-width: 250px;
  margin: 2.5rem auto 0;
  background-color: #3949ab;
  color: #ffffff;
  border: none;
  padding: 1rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s;
  text-transform: uppercase;
}
button[type="submit"]:hover { background-color: #283593; }
button[type="submit"]:active { transform: translateY(1px); }

/* --- Carte des Services --- */
.services-container { max-width: 800px; margin: 2rem auto; background-color: #ffffff; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); }
.services-container h4 { text-align: center; margin-bottom: 1.5rem; color: #1a237e; font-size: 1.5rem; font-weight: 700; }
.services-container ul { padding-left: 1.5rem; margin-bottom: 1rem; columns: 2; -webkit-columns: 2; -moz-columns: 2; }

/* --- Pied de page --- */
footer { background-color: #2b2b2b; color: #f0f2f5; padding: 1.5rem 1rem; text-align: center; margin-top: auto; }
.footer-content { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.social-links { display: flex; gap: 1rem; }
.social-links img { width: 24px; height: 24px; filter: grayscale(100%) invert(100%); transition: filter 0.2s ease-in-out; }
.social-links a:hover img { filter: grayscale(0%) invert(0%); }

/* --- Réactivité --- */
@media (max-width: 600px) { .services-container ul { columns: 1; } }
@media (min-width: 600px) { .form-section { padding: 0 2.5rem 2.5rem 2.5rem; } .form-section h2 { font-size: 1.75rem; } .footer-content { flex-direction: row; justify-content: space-between; align-items: center; } }
@media (min-width: 768px) { .content-card { max-width: 700px; margin-left: auto; margin-right: auto; } button[type="submit"] { width: auto; } .logo { max-width: 250px; } }