/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Body */
body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #000000;
  color: #ffffff;
  line-height: 1.6;
}

/* Header */
header {
  background-color: #fdd835;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  text-align: center;
}

/* Image en fond */
header::before {
  content: "";
  display: block;
  height: 220px; /* hauteur de l'image */
  background-image: url('img/alexcourses2.jpg');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  margin-bottom: 1em;
}

/* Titre */
header h1 {
  font-size: 2em;
  color: #b71c1c;
  margin-bottom: 0.5em;
}

/* Navigation */
nav {
  margin-bottom: 1em;
}

nav a {
  margin: 0 1em;
  color: #b71c1c;
  text-decoration: none;
  font-weight: bold;
}

/* Main container */
main {
  max-width: 800px;
  margin: 2em auto;
  background-color: #e7d171;
  padding: 2em;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(0,0,0,0.05);
}

/* Form elements */
form input,
form select,
form textarea,
form button {
  display: block;
  width: 100%;
  margin: 1em 0;
  padding: 0.8em;
  font-size: 1em;
  border: 1px solid #ccc;
  border-radius: 8px;
}

form button {
  background-color: #3db71c;
  color: white;
  border: none;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

form button:hover {
  background-color: #d32f2f;
}

/* Section titles */
h2 {
  color: #b71c1c;
  margin-bottom: 1em;
}

/* Lists */
ul {
  margin: 1em 0;
  padding-left: 1.5em;
}

ul li {
  margin-bottom: 0.5em;
}

/* Footer */
footer {
  text-align: center;
  padding: 1em;
  background-color: #fdd835;
  color: #b71c1c;
  font-size: 0.9em;
  margin-top: 2em;
}