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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Ubuntu, sans-serif;
  background: #000;
  color: #fff;
  height: 100vh;
  overflow: hidden;
}

/* CONTENEUR PRINCIPAL */
.hero {
  position: relative;
  height: 100vh;
  padding: 40px 60px;
  overflow: hidden;
}

/* VIDÉO EN BACKGROUND */
.bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;       /* équivalent de background-size: cover */
  object-position: center;
  z-index: 0;
}

/* CONTENU AU-DESSUS */
.content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

/* LOGO */
.logo {
  width: 600px;
  max-width: 100%;
  margin-bottom: 12px;
}

/* TEXTE */
.description {
  font-size: 25px;
  font-weight: 130;
  line-height: 1.5;
  margin-bottom: 36px;
  opacity: 0.95;
  font-family: 'Helvetica';
}

/* BOUTON */
.btn-explore {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Helvetica';

  background: #fff;
  color: #000;
  padding: 14px 22px;
  border-radius: 999px;

  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;

  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-explore span {
  font-size: 16px;
}

.btn-explore:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.25);
}