body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: 'Segoe UI', sans-serif;
  background-color: #111;
  color: #fff;
  overflow: hidden;
}

.intro {
  position: relative;
  width: 100vw;
  height: 100vh;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.intro-content {
  position: relative;
  z-index: 1;
  text-align: center;
  animation: fadeIn 2s ease-in-out forwards;
}

.intro-logo,
.main-logo {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 50%;
  animation: flicker 3s infinite;
}

.main-logo {
  width: 120px;
  height: 120px;
  margin-bottom: 1rem;
  object-fit: cover;
  border-radius: 50%;
}

.slogan {
  font-size: 1.5rem;
  margin-top: 1rem;
  font-family: 'Bebas Neue', Impact, Arial Black, sans-serif;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.main-content {
  display: none;
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-in-out forwards;
}

.main-content.visible {
  display: block;
}

.presentation {
  margin-bottom: 2rem;
  text-align: center;
}

.cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.btn {
  background-color: #e50914;
  color: #fff;
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 50%;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  transition: background 0.3s ease;
  font-size: 1.7rem;
  padding: 0;
  gap: 0;
}

.btn i {
  font-size: 2rem;
}

.btn:hover {
  background-color: #b2060f;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(50px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    opacity: 1;
  }
  20%, 24%, 55% {
    opacity: 0.4;
  }
}