body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: #ffffff;
  background: radial-gradient(circle at 20% 20%, #1a2a6c, transparent),
              radial-gradient(circle at 80% 30%, #b21f1f, transparent),
              radial-gradient(circle at 50% 80%, #0f2027, transparent),
              #020111;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background-image: radial-gradient(2px 2px at 20px 30px, white, transparent),
                    radial-gradient(1px 1px at 100px 150px, white, transparent),
                    radial-gradient(1.5px 1.5px at 200px 80px, white, transparent);
  background-repeat: repeat;
  animation: stars 60s linear infinite;
  opacity: 0.4;
  z-index: -1;
}

@keyframes stars {
  from { transform: translateY(0); }
  to { transform: translateY(500px); }
}

header {
  text-align: center;
  padding: 60px 20px;
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

h1 {
  font-size: 42px;
  margin: 0;
  letter-spacing: 2px;
}

header p {
  opacity: 0.8;
}

main {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

.card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 25px;
  margin-bottom: 20px;
  border-radius: 16px;
  backdrop-filter: blur(8px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: 0 10px 25px rgba(0,0,0,0.6);
}

.card h2 {
  margin-top: 0;
  color: #8fd3ff;
}

footer {
  text-align: center;
  padding: 20px;
  background: rgba(0,0,0,0.5);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 14px;
  opacity: 0.7;
}