@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

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

body {
  height: 100vh;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-container {
  background: #fff;
  padding: 40px;
  border-radius: 15px;
  width: 350px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  animation: fadeIn 1.2s ease;
}

.title {
  text-align: center;
  margin-bottom: 20px;
  font-weight: 600;
  color: #333;
}

.login-form .input-group {
  position: relative;
  margin: 30px 0;
}

.input-group input {
  width: 100%;
  padding: 10px 10px;
  border: none;
  border-bottom: 2px solid #ccc;
  outline: none;
  font-size: 16px;
  transition: 0.3s;
}

.input-group label {
  position: absolute;
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
  color: #aaa;
  font-size: 16px;
  pointer-events: none;
  transition: 0.3s;
}

.input-group input:focus ~ label,
.input-group input:valid ~ label {
  top: -10px;
  font-size: 12px;
  color: #2575fc;
}

.input-group input:focus {
  border-color: #2575fc;
}

.btn {
  width: 100%;
  padding: 12px;
  border: none;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  color: #fff;
  font-size: 16px;
  border-radius: 25px;
  cursor: pointer;
  transition: 0.3s;
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

#error {
  text-align: center;
  margin-top: 15px;
  color: red;
}

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