/* style.css - Style principal */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f7fafd;
  margin: 0;
  padding: 0;
  color: #333;
}

header {
  background: linear-gradient(to right, #4facfe, #00f2fe);
  padding: 1em 0;
}

.banner-container {
  text-align: center;
  margin: 0 0 1em 0;
}

.banner-img {
  max-width: 100%;
  height: auto;
  max-height: 120px;
}

h1, h2 {
  text-align: center;
  margin-top: 0;
}

h1 {
  color: white;
  margin-bottom: 0.5em;
}

h2 {
  color: #005a9e;
}

.main-menu {
  display: flex;
  justify-content: center;
  list-style-type: none;
  padding: 0;
  background-color: rgba(0, 0, 0, 0.1);
  margin: 0;
  flex-wrap: wrap;
}

.main-menu > li {
  position: relative;
}

.main-menu > li > a {
  display: block;
  padding: 0.8em 1.2em;
  color: white;
  text-decoration: none;
}

.main-menu > li:hover > a {
  background-color: rgba(0, 0, 0, 0.2);
}

.submenu {
  display: none;
  position: absolute;
  background-color: #e3f2fd;
  list-style: none;
  padding: 0;
  margin: 0;
  border: 1px solid #ccc;
  z-index: 1000;
  min-width: 180px;
}

.submenu li a {
  display: block;
  padding: 0.5em 1em;
  color: #333;
  text-decoration: none;
}

.submenu li a:hover {
  background-color: #cce5ff;
}

.dropdown:hover .submenu {
  display: block;
}

.intro {
  padding: 1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1em;
}

section {
  background: white;
  padding: 20px;
  margin: 10px 0;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.sommaire {
  background: #e3f2fd;
  padding: 10px;
  margin: 10px 0;
  border-radius: 8px;
}

.sommaire ul {
  list-style: none;
  padding-left: 15px;
}

.sommaire li {
  margin: 5px 0;
}

.sommaire a {
  text-decoration: none;
  color: #007acc;
}

.sommaire a:hover {
  text-decoration: underline;
}

pre {
  background: #f5f5f5;
  padding: 10px;
  border-radius: 5px;
  overflow-x: auto;
  border: 1px solid #ddd;
}

code {
  font-family: Consolas, Monaco, 'Andale Mono', monospace;
}

.bonus summary {
  font-weight: bold;
  color: #007acc;
  cursor: pointer;
}

.bonus details[open] summary {
  border-bottom: 1px solid #ccc;
  margin-bottom: 10px;
}

.bottom-buttons {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.button-return, .button {
  background: #007acc;
  color: white;
  padding: 10px 20px;
  border-radius: 20px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1em;
  margin: 5px;
}

.button-return:hover, .button:hover {
  background: #005a9e;
}

footer {
  text-align: center;
  margin: 2em 0;
  padding: 1em;
  color: #666;
  background-color: #e3f2fd;
}

/* Responsive */
@media (max-width: 768px) {
  .main-menu {
    flex-direction: column;
    align-items: center;
  }
  
  .submenu {
    position: static;
    width: 100%;
  }
  
  .dropdown:hover .submenu {
    display: block;
  }
  
  .bottom-buttons {
    flex-direction: column;
    align-items: center;
  }
}