* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: 'Poppins', sans-serif;
    }
    body {
      background-color: #111827;
      display: flex;
      justify-content: center;
      align-items: center;
      display: flex;
      flex-direction: column;
    }
    .login-box {
      background-color: rgb(252, 251, 251) ;
      padding: 2.5rem;
      border-radius: 1rem;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      width: 100%;
      margin-top: 2rem;
      max-width: 400px;
    }
    .login-box h2 {
      text-align: center;
      margin-bottom: 1.5rem;
      color: #111827;
    }
    .login-box input {
      width: 100%;
      padding: 0.75rem;
      margin-bottom: 1rem;
      border: 1px solid #d1d5db;
      border-radius: 0.5rem;
      font-size: 1rem;
    }
    .login-box button {
      width: 100%;
      padding: 0.8rem;
      border: none;
      background-color: #192236;
      color: white;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 0.5rem;
      cursor: pointer;
      transition: background-color 0.3s;
    }
    .login-box button:hover {
      background-color: #2563eb;
    }
    .login-box p {
      text-align: center;
      margin-top: 1rem;
    }
    .login-box a {
      color: #3b82f6;
      text-decoration: none;
    }
    .login-box a:hover {
      text-decoration: underline;
    }
    .error-msg {
      color: red;
      font-size: 0.9rem;
      margin-bottom: 1rem;
      text-align: center;
    }
    /* Social Login Buttons */
    .social-login {
      margin-top: 1.5rem;
    }
    .divider {
      display: flex;
      align-items: center;
      margin: 1.5rem 0;
    }
    .divider::before, .divider::after {
      content: "";
      flex: 1;
      height: 1px;
      background-color: #e5e7eb;
    }
    .divider span {
      padding: 0 0.5rem;
      color: #6b7280;
      font-size: 0.875rem;
    }
    .social-buttons-container {
      display: flex;
      justify-content: space-between;
      gap: 0.5rem;
      margin-bottom: 0.75rem;
    }
    .social-btn {
      display: flex;
      align-items: center;
      justify-content: center;
      flex: 1;
      padding: 0.6rem;
      border: 1px solid #d1d5db;
      background-color: white;
      color: #374151;
      font-size: 0.85rem;
      font-weight: 500;
      border-radius: 0.5rem;
      cursor: pointer;
      transition: all 0.3s;
    }
    .social-btn:hover {
      background-color: #f9fafb;
      border-color: #9ca3af;
    }
    .social-btn i {
      font-size: 1.1rem;
      margin-right: 0.3rem;
    }
    .google-btn {
      color: #4285f4;
    }
    .facebook-btn {
      color: #1877f2;
    }
    .microsoft-btn {
      color: #00a1f1;
    }
    .apple-btn {
      color: #000;
    }

.back-button {
  position: fixed;
  top: 20px;
  left: 20px;
  background: #243351; /* dark navy */
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  z-index: 10000; /* stays on top */
  transition: background 0.3s ease;
}

.back-button:hover {
  background: #2563eb; /* blue on hover */
}

/* Responsive: smaller on mobile */
@media (max-width: 600px) {
  .back-button {
    font-size: 0.8rem;
    padding: 8px 12px;
    top: 15px;
    left: 15px;
  }
  
  .social-btn {
    font-size: 0.75rem;
    padding: 0.5rem;
  }
  
  .social-btn i {
    font-size: 1rem;
  }
}