/* ----- STYLE GLOBAL ----- */
body {
  margin: 0;
  font-family: 'Orbitron', sans-serif;
  background-color: #111;
  color: #fff;
  overflow-x: hidden;
}

/* ----- HEADER ----- */
header {
  background-color: #111;
  padding: 80px 20px;
  text-align: center;
  border-bottom: 2px solid #333;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.5);
}

.logo-img {
  max-height: 180px;
  margin-bottom: 10px;
}

.slogan {
  font-style: italic;
  color: #ff4d4d;
  font-size: 1.3em;
  margin-top: -15px;
  margin-bottom: 40px;
  letter-spacing: 1.2px;
  text-shadow: 1px 1px 3px rgba(255, 0, 0, 0.6);
}

h1, h2 {
  margin-bottom: 20px;
  color: #f00;
}

p {
  color: #ccc;
  max-width: 700px;
  margin: 0 auto 30px;
  font-size: 1.2em;
}

.btn {
  background-color: #f00;
  padding: 12px 24px;
  color: white;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  margin: 10px;
  display: inline-block;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #cc0000;
}

/* ----- SECTIONS ----- */
.section-dark,
.section-grey {
  padding: 80px 20px;
  text-align: center;
  margin: 0 20px 40px;
  border-radius: 12px;
}

.section-dark {
  background-color: #111;
  border-top: 2px solid #222;
}

.section-grey {
  background-color: #1a1a1a;
  border-top: 2px solid #333;
}

/* ----- FOOTER ----- */
footer {
  font-size: 0.9em;
  color: #aaa;
  background-color: #000;
  text-align: center;
  padding: 40px 20px;
}

/* ----- BOUTON MENU ----- */
#menu-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  background-color: #f00;
  color: #fff;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 1.5em;
  cursor: pointer;
  z-index: 1001;
  opacity: 0; /* caché au départ */
  transform: translateX(-30px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#menu-btn.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ----- MENU LATÉRAL GAUCHE ----- */
#side-nav {
  position: fixed;
  top: 0;
  left: -300px;
  width: 250px;
  height: 100%;
  background-color: #111;
  padding: 80px 20px;
  box-shadow: 5px 0 15px rgba(0,0,0,0.5);
  transition: left 0.3s ease;
  z-index: 1000;
}

#side-nav.open {
  left: 0;
}

#side-nav a {
  display: block;
  color: #fff;
  padding: 12px 0;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s, background-color 0.3s;
}

#side-nav a:hover {
  color: #ff4d4d;
}

/* ----- LIEN ACTIF ----- */
#side-nav a.active {
  color: #fff;
  background-color: #f00;
  border-radius: 6px;
  padding-left: 10px;
}