body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #ff0050, #ff66a3);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
}

.menu {
  text-align: center;
  background: rgba(0, 0, 0, 0.6);
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}

.menu button {
  display: block;
  width: 200px;
  margin: 15px auto;
  padding: 15px;
  border: none;
  border-radius: 10px;
  background: #ff0050;
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  transition: 0.3s;
}

.menu button:hover {
  background: #ff3370;
  transform: scale(1.05);
}

header {
  text-align: center;
  margin-bottom: 20px;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin: 0 10px;
  font-size: 1.2rem;
}

nav a:hover {
  text-decoration: underline;
}

.quiz-card {
  background: rgba(0,0,0,0.5);
  padding: 20px;
  border-radius: 15px;
  margin: 20px auto;
  width: 80%;
  max-width: 400px;
  text-align: center;
}

.create-container, .profile {
  display: flex;
  flex-direction: column;
  align-items: center;
}

input {
  width: 80%;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 10px;
  border: none;
}


.auth-container {
  background: #0a0f1a;
  color: white;
  width: 350px;
  margin: 100px auto;
  padding: 40px;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 0 25px rgba(0, 230, 255, 0.3);
}

.auth-container h2 {
  color: #00e6ff;
  margin-bottom: 20px;
}

.auth-container input {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border: none;
  border-radius: 10px;
  background: #111827;
  color: white;
  font-size: 15px;
}

.btn-primary {
  background: linear-gradient(90deg, #00e6ff, #0033ff);
  color: white;
  border: none;
  border-radius: 30px;
  padding: 12px;
  width: 100%;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.2s;
}

.btn-primary:hover {
  transform: scale(1.05);
}

.btn-secondary {
  margin-top: 15px;
  background: transparent;
  color: #00e6ff;
  border: 1px solid #00e6ff;
  border-radius: 30px;
  padding: 10px 20px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn-secondary:hover {
  background: #00e6ff;
  color: #0a0f1a;
}

.logo {
  width: 70px;
  margin-bottom: 15px;
  filter: drop-shadow(0 0 10px #00e6ff);
}