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

  body,
  html {
	height: 100%;
	font-family: "Segoe UI", sans-serif;
	overflow: hidden;
  }

  #particles-js {
	position: absolute;
	width: 100%;
	height: 100%;
	z-index: 1;
  }

  .video-bg {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	z-index: 0;
	opacity: 0.6;
  }

  .text-background {
	background: rgba(0, 0, 0, 0.5); /* fond sombre semi-transparent */
	padding: 20px;
	border-radius: 12px;
	backdrop-filter: blur(5px); /* optionnel pour un effet flou */
  }

  .container {
	position: relative;
	z-index: 2;
	height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
	flex-direction: column;
	color: #fff;
	text-align: center;
	backdrop-filter: blur(3px);
  }

  h1 {
	font-size: 2.8em;
	margin-bottom: 1.2em;
	animation: slideDown 1.2s ease;
  }

  .buttons {
	display: flex;
	justify-content: center; /* ✅ Centre les boutons horizontalement */
	align-items: center;
	gap: 20px;
	flex-wrap: wrap;
	margin-top: 20px;
  }

  .btn {
	padding: 15px 30px;
	border: none;
	border-radius: 8px;
	font-size: 1em;
	cursor: pointer;
	transition: all 0.3s ease;
	color: #fff;
	background: #0984e3;
	box-shadow: 0 5px 15px rgba(9, 132, 227, 0.4);
	min-width: 200px; /* ✅ taille uniforme */
	text-align: center;
  }

  .btn:hover {
	background: #74b9ff;
	transform: translateY(-3px);
  }

  @keyframes slideDown {
	from {
	  transform: translateY(-30px);
	  opacity: 0;
	}
	to {
	  transform: translateY(0);
	  opacity: 1;
	}
  }

  @media screen and (max-width: 500px) {
	.buttons {
	  flex-direction: column;
	}
  }