body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #0f172a;
  color: #e2e8f0;
}

header {
  background: #1e293b;
  padding: 20px;
  text-align: center;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 0;
}

nav a {
  color: #38bdf8;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

section {
  padding: 20px;
  margin: 20px;
  background: #1e293b;
  border-radius: 10px;
}

h1, h2 {
  color: #38bdf8;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  border: 1px solid #334155;
  padding: 10px;
  text-align: left;
}

th {
  background: #0ea5e9;
  color: black;
}

footer {
  text-align: center;
  padding: 10px;
  background: #1e293b;
}

/* ACCESSIBILITY */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: black;
  color: white;
  padding: 10px;
}

.skip-link:focus {
  top: 0;
}

/*pour le tp2 */

form {
  max-width: 600px;
  margin: auto;
}

fieldset {
  margin-bottom: 20px;
  padding: 15px;
  border: 1px solid #334155;
  border-radius: 10px;
}

label {
  display: block;
  margin-bottom: 10px;
}

input, textarea {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
}

button {
  padding: 10px;
  background: #0ea5e9;
  border: none;
  color: white;
  cursor: pointer;
}