body {
    font-family: 'Poppins', sans-serif;
}
.login-container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
  background: white;
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-box h1 {
  text-align: center;
  color: #333;
  margin-bottom: 30px;
  font-size: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: #555;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 2px solid #e0e0e0;
  border-radius: 5px;
  font-size: 16px;
  transition: border-color 0.3s;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
}

.btn {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  background: #fee;
  color: #c33;
  padding: 12px;
  border-radius: 5px;
  margin-bottom: 20px;
  border-left: 4px solid #c33;
}

.info {
  margin-top: 20px;
  padding: 15px;
  background: #f0f7ff;
  border-radius: 5px;
  font-size: 14px;
  color: #555;
}

.info strong {
  color: #333;
}

.info code {
  background: #e0e0e0;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}