@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap');

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(rgba(30, 30, 50, 0.8), rgba(10, 10, 30, 0.9)),
    url('https://images.pexels.com/photos/256369/pexels-photo-256369.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=750&w=1260') no-repeat center center fixed;
  background-size: cover;
  color: #e0e0e0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 50px 20px;
}

.wrapper {
  background-color: rgba(15, 15, 25, 0.85);
  padding: 40px 50px;
  border-radius: 15px;
  max-width: 900px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.7);
  animation: slideFadeIn 1.5s ease forwards;
}

header {
  text-align: center;
  margin-bottom: 30px;
}

h1 {
  font-weight: 700;
  font-size: 3.2rem;
  margin-bottom: 8px;
  color: #a3d2ca;
  letter-spacing: 2px;
  text-shadow: 0 0 8px #7bb8b0;
}

.back-link {
  color: #a3d2ca;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.15rem;
  border-bottom: 1.5px solid transparent;
  transition: border-color 0.3s ease;
}
.back-link:hover {
  border-bottom: 1.5px solid #a3d2ca;
}

h2 {
  font-weight: 700;
  color: #e7f6f2;
  border-bottom: 2px solid #a3d2ca;
  padding-bottom: 6px;
  margin-top: 30px;
  margin-bottom: 20px;
}

.intro p {
  font-size: 1.2rem;
  line-height: 1.7;
  color: #d4e9e2;
  max-width: 700px;
  margin: 0 auto;
}

.video iframe {
  display: block;
  margin: 25px auto;
  width: 100%;
  max-width: 560px;
  height: 315px;
  border-radius: 12px;
  box-shadow: 0 0 25px #7bb8b0;
}

.components ul {
  list-style-type: square;
  padding-left: 22px;
  font-size: 1.15rem;
  max-width: 700px;
  margin: 0 auto;
}

.components li {
  margin-bottom: 10px;
}

/* Animations */
@keyframes slideFadeIn {
  0% {
    opacity: 0;
    transform: translateX(-30px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}