body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #eef2f3;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-container {
  background: #fff;
  padding: 30px;
  width: 100%;
  max-width: 400px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.login-form {
  display: flex;
  flex-direction: column;
}

.login-form h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #00755e;
}

.input-group {
  position: relative;
  margin-bottom: 15px;
}

.input-group i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #888;
}

.input-group input {
  width: 85%;
  padding: 12px 12px 12px 38px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
}

.login-form button {
  padding: 12px;
  background: #00755e;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s ease;
}

.login-form button:hover {
  background: #005c48;
}

.alert {
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 6px;
  font-size: 14px;
  text-align: center;
}

.alert.error {
  background: #fee2e2;
  color: #991b1b;
}