body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #4f46e5, #9333ea); /* Bleu-violet élégant */
  color: white;
  text-align: center;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  padding: 40px 20px;
  flex: 1;
}

h1 {
  font-size: 2.5em;
  margin-bottom: 20px;
}

.desc, p {
  font-size: 1.2em;
  margin-bottom: 30px;
}

.timer {
  font-size: 3em;
  margin: 20px 0;
}

.button {
  display: inline-block;
  margin: 10px;
  padding: 12px 24px;
  background: #facc15; /* Jaune vif pour contraste */
  color: #1e1e1e;
  text-decoration: none;
  border-radius: 10px;
  font-weight: bold;
  transition: background 0.3s;
}

.button:hover {
  background: #eab308;
}

.nav-buttons {
  margin-top: 20px;
}

footer {
  margin: 20px 0;
  font-style: italic;
  font-size: 1em;
  color: #d4d4d4;
}