/* Fuentes */
  @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

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

  body {
      background: linear-gradient(135deg, #111, #222);
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      overflow: hidden;
  }

  .login-wrapper {
      display: flex;
      flex-direction: column;
      align-items: center;
      animation: fadeIn 1s ease;
  }

  @keyframes fadeIn {
      from { opacity: 0; transform: translateY(-20px); }
      to { opacity: 1; transform: translateY(0); }
  }

  .login-container {
      background: #1c1c1c;
      padding: 30px;
      border-radius: 12px;
      width: 300px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.5);
      text-align: center;
  }

  .login-container h2 {
      margin-bottom: 20px;
      font-weight: 700;
      color: #00bfff;
  }

  .login-container label {
      display: block;
      text-align: left;
      font-size: 14px;
      margin-bottom: 5px;
      color: #ccc;
  }

  .login-container input[type="text"],
  .login-container input[type="password"] {
      width: 100%;
      padding: 10px;
      margin-bottom: 15px;
      border: none;
      border-radius: 6px;
      background: #2a2a2a;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: background 0.3s;
  }

  .login-container input[type="text"]:focus,
  .login-container input[type="password"]:focus {
      background: #333;
  }

  .login-container input[type="submit"] {
      background: #00bfff;
      color: #fff;
      border: none;
      padding: 12px;
      width: 100%;
      border-radius: 6px;
      cursor: pointer;
      font-weight: 700;
      letter-spacing: 1px;
      transition: background 0.3s;
  }

  .login-container input[type="submit"]:hover {
      background: #0099cc;
  }

  .login-logo img {
      width: 100px;
      margin-top: 20px;
      opacity: 0.8;
  }

  .error-message {
      background: #ff4d4d;
      color: white;
      padding: 10px;
      margin-bottom: 15px;
      border-radius: 6px;
      font-size: 14px;
      animation: shake 0.3s;
  }

  @keyframes shake {
      0% { transform: translateX(-5px); }
      25% { transform: translateX(5px); }
      50% { transform: translateX(-5px); }
      75% { transform: translateX(5px); }
      100% { transform: translateX(0); }
  }