* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", system-ui, sans-serif;
}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #1a1a2e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  position: relative;
}

/* Stars effect */
.stars {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  animation: twinkle var(--duration) infinite;
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.2;
  }
  50% {
    opacity: 1;
  }
}

.container {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 800px;
  width: 90%;
  z-index: 1;
}

h1 {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(to right, #fff, #a5b4fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

.subtitle {
  font-size: 1.2rem;
  color: #a5b4fc;
  margin-bottom: 2rem;
  letter-spacing: 2px;
}

.assignments-text {
  margin-bottom: 2rem;
  color: #9ca3af;
  font-style: italic;
}

.assignments {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.assignment-link {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
}

.assignment-link:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  .container {
    padding: 1.5rem;
  }

  .assignments {
    grid-template-columns: 1fr;
  }
}