* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  height: 100vh;
  background: radial-gradient(circle at top left, #0a0f1f, #05070d);
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
}

.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.auth-box {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 40px 50px;
  box-shadow: 0 0 25px rgba(0, 212, 255, 0.2);
  width: 380px;
  text-align: center;
  animation: fadeIn 0.8s ease;
}

.auth-box h2 {
  margin-bottom: 25px;
  font-size: 28px;
  color: #00d4ff;
  text-shadow: 0 0 15px #00d4ff;
}

.input-box {
  position: relative;
  margin-bottom: 25px;
}

.input-box i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #00d4ff;
}

.input-box input {
  width: 100%;
  padding: 12px 15px 12px 45px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: white;
  outline: none;
  font-size: 16px;
  transition: 0.3s;
}

.input-box input:focus {
  border-color: #00d4ff;
  box-shadow: 0 0 10px #00d4ff;
}

.btn-primary {
  background: linear-gradient(135deg, #00d4ff, #007bff);
  color: white;
  border: none;
  padding: 12px 0;
  width: 100%;
  border-radius: 10px;
  font-weight: 600;
  font-size: 17px;
  cursor: pointer;
  transition: 0.3s;
}

.btn-primary:hover {
  box-shadow: 0 0 15px #00d4ff;
  transform: translateY(-2px);
}

.text-small {
  margin-top: 20px;
  color: #aaa;
  font-size: 14px;
}

.text-small a {
  color: #00d4ff;
  text-decoration: none;
  transition: 0.3s;
}

.text-small a:hover {
  text-shadow: 0 0 10px #00d4ff;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .auth-box {
    width: 90%;
    padding: 30px 25px;
  }
}