body {
  font-family: Arial, sans-serif;
  background: #f0f4f3;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.auth-container {
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  width: 350px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.auth-container h1 {
  text-align: center;
  margin-bottom: 20px;
}

.auth-container input {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.auth-container button {
  width: 100%;
  padding: 10px;
  background: #0f766e;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.auth-container button:hover {
  background: #0d5d58;
}

.error {
  color: red;
  text-align: center;
}

@media (max-width: 576px) {
  body {
    font-size: 0.95rem;
  }

  h1, h2, h3 {
    font-size: 1.2rem;
  }

  p, td, th, label, input, button, a {
    font-size: 0.95rem;
  }

  .widget, .sidebar, .main-content, table {
    zoom: 1.03;
  }

  .btn, button {
    padding: 0.45rem 0.9rem;
    font-size: 0.95rem;
  }
}