/* ======================
   RESET ET GLOBAUX
   ====================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', Arial, sans-serif;
  color: #333;
  background-color: #F9FAFB; /* gris très clair */
}

/* Couleurs principales */
:root {
  --color-primary: #B71C1C; /* Rouge profond */
  --color-dark: #212121;    /* Gris/noir */
  --color-light: #F9FAFB;   /* Gris très clair */
}

/* ======================
   NAVBAR
   ====================== */
.navbar-brand img {
  max-height: 50px;
}
.navbar-light .navbar-nav .nav-link {
  color: #333;
}
.navbar-light .navbar-nav .nav-link.active {
  color: var(--color-primary);
}
.navbar-light .btn-primary {
  background-color: var(--color-primary);
  border: none;
}

/* ======================
   SECTION HERO
   ====================== */
.hero-section {
  min-height: 70vh;
  position: relative;
  background-color: var(--color-dark); /* fallback si l'image ne se charge pas */
}
.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0,0,0,0.4);
}
.hero-section .container {
  z-index: 2;
}
.hero-section h1,
.hero-section p {
  color: #fff;
}
.hero-section .btn {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}
.hero-section .btn:hover {
  background-color: #9b1717;
  border-color: #9b1717;
}

/* ======================
   CONTENU
   ====================== */
h1, h2, h3, h4 {
  font-weight: 600;
  margin-bottom: 1rem;
}
p {
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* ======================
   CARDS (pour Valeurs/Services)
   ====================== */
.bg-white {
  background-color: #fff;
}
.shadow-sm {
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* ======================
   FORMULAIRE DE CONTACT
   ====================== */
#contact {
  margin-top: 2rem;
  border-radius: 0.5rem;
}
form .form-control {
  border-radius: 0.3rem;
  border: 1px solid #ccc;
}
form .form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.15rem rgba(183, 28, 28, 0.25);
}

/* ======================
   FOOTER
   ====================== */
footer.bg-dark {
  color: #fff;
}
footer p {
  margin: 0.5rem 0;
}
#backToTop {
  margin-top: 1rem;
}

/* ======================
   BOUTONS GLOBAL
   ====================== */
.btn-primary {
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.btn-primary:hover {
  background-color: #9b1717;
  border-color: #9b1717;
}
.btn-outline-light:hover {
  background-color: #fff;
  color: #333;
}