/* ===== Reset léger ===== */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: #eaeaec;
  background: url("../img/bg2.jpg") top center / cover no-repeat fixed;
}


/* Titre principal */
h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #ffffff; /* Blanc pur pour le contraste */
    text-align: left;
    text-shadow: 0 2px 6px rgba(180,210,255,0.6); /* Ombre douce pour lisibilité */
    margin-bottom: 1rem;
}

/* Sous-titres */
h2 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #e0e6ff; /* Blanc légèrement bleuté */
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
    margin-bottom: 0.8rem;
}

/* Titres de section ou cartes */
h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #b3d1ff; /* Bleu clair élégant */
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    margin-bottom: 0.5rem;
}

a {
  text-decoration: none;
  font-weight: 500;
  color: #e0e6ff;
}

img.imgcard {
  display: block;
  margin: auto;
  margin-top: 1em;
  /*width: 100%;*/
}
/* Effets au survol */
.main-nav a:hover {
  color: #4da6ff;
}

/* ===== PAGE D'ACCUEIL =====*/
.section-subtitle {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  color: #444;
}

.section-text {
  font-size: 1rem;
  color: #666;
  margin: 0 auto;
  line-height: 1.6;
}


/* ===== Overlay pour lisibilité sur photo ===== */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  /* dégradé sombre subtil au-dessus de la photo */
  background: linear-gradient(180deg, rgba(5,7,12,.3), rgba(5,7,12,.3));
  z-index: 0;
} 

/* ===== Conteneur centré ===== */
.site {
  position: relative;
  z-index: 1;               /* au-dessus de l’overlay */
  width: 80%;
  /*max-width: 1100px;*/
  margin: 0 auto;
  padding: 24px;
}

.title, .slogan { margin: 0}
/* ===== Header / Nav ===== */
header {
  background: rgba(255, 255, 255, 0.15); /* translucide élégant */
  backdrop-filter: blur(8px) brightness(1.0); /* floute le fond derrière (effet moderne) */
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 16px 20px;
  min-height: 180px;
}

.navbar {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Navigation */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.main-nav a {
  text-decoration: none;
  font-weight: 500;
  color: #e0e6ff;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

/* Effets au survol */
.main-nav a:hover {
  background: rgba(77,166,255,0.2);
  color: #4da6ff;
  box-shadow: 0 2px 6px rgba(77,166,255,0.4);
}

/* État actif (page courante) */
.main-nav a.active {
  background: #4da6ff;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

/* ===== Cartes / sections ===== */
.card {
  background: rgba(255, 255, 255, 0.15); /* translucide élégant */
  backdrop-filter: blur(8px); /* floute le fond derrière (effet moderne) */
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 22px;
}

.hero {
  display: grid;
  gap: 14px;
  margin: 24px 0;
}
.hero h1 {
  margin: 0;
  font-size: clamp(28px, 4.5vw, 44px);
  letter-spacing: -0.02em;
}
.hero p {
  margin: 0;
  color: #c9cbd2;
}

/* grille de cartes */
.grid {
  display: grid;
  gap: 16px;
}
@media (min-width: 860px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

/* boutons */
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  background: #4da6ff;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.6);
}

/* ===== Formulaire contact */
.contact-section {
  padding: 3rem 1rem;
  display: flex;
  justify-content: center;
}

.contact-section .container {
  max-width: 600px;
  width: 100%;
  background: rgba(255, 255, 255, 0.9); /* Fond clair semi-translucide */
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.contact-section h2 {
  text-align: center;
  margin-bottom: 0.5rem;
  color: #222;
}

.contact-section p {
  text-align: center;
  margin-bottom: 2rem;
  color: #444;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #222;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: #0066cc;
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.2);
}

button.btn {
  width: 100%;
  padding: 0.9rem;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #0066cc, #004a99);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
}

button.btn:hover {
  background: linear-gradient(135deg, #005bb5, #003d80);
  transform: translateY(-2px);
}

button.btn:active {
  transform: translateY(0);
}
#formResponse { margin: 10px auto;}

/* ===== Footer ===== */
footer {
  background: rgba(255, 255, 255, 0.15); /* translucide élégant */
  backdrop-filter: blur(8px); /* floute le fond derrière (effet moderne) */
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  margin: 24px 0 8px;
  padding: 14px 18px;
}
.footer-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  /*gap: 12px;*/
  flex-wrap: wrap;
}
.footer-links {
    display: flex;
    gap: 10px; /* espace automatique entre les liens */
}
.footer-links a {
    color: #fff;
    text-decoration: none;
    margin-left: 8px;
}
.footer-links a:hover {
    text-decoration: underline;
}

/* utilitaires */
.center { text-align: center; }
.m0 { margin: 0; }
.mt24 { margin-top: 24px; }