* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      height: 100vh;
      background: url('img/fondo.jpg') 
        no-repeat center center fixed;
      background-size: cover;
      position: relative;
    }

    body::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
      background-color: hwb(199 34% 6% / 0.456);
      z-index: 0;
    }

    .login-box {
      position: relative;
      z-index: 1;
      background: url('https://images.unsplash.com/photo-1601597111158-3e37d4c1887c?auto=format&fit=crop&w=400&q=80') no-repeat center;
      background-size: cover;
      padding: 40px;
      border-radius: 15px;
      box-shadow: 0 10px 25px #c9b6a2de;
      width: 100%;
      max-width: 350px;
      margin: auto;
      top: 50%;
      transform: translateY(-50%);
      color: hsl(0, 0%, 80%);
    }

    .login-box::before {
      /* Capa semitransparente sobre la imagen del cuadro */
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
      background-color: hsla(84, 47%, 54%, 0.824); /* Oscurece la imagen del cuadro */
      border-radius: 15px;
      z-index: -1;
    }

    .login-box h2 {
      text-align: center;
      margin-bottom: 25px;
      color: hsl(0, 0%, 100%);
    }

    .login-box label {
      display: block;
      margin-bottom: 5px;
      font-weight: bold;
      color: rgb(18, 47, 34);
    }

    .login-box input[type="text"],
    .login-box input[type="password"] {
      width: 100%;
      padding: 10px;
      margin-bottom: 20px;
      border: none;
      border-radius: 8px;
      outline: none;
    }

    .login-box input[type="submit"] {
      width: 100%;
      padding: 12px;
      background-color: hsl(25, 92%, 19%);
      color: #c7c3c3;
      border: none;
      border-radius: 8px;
      font-size: 16px;
      cursor: pointer;
    }

    .login-box .extra {
      text-align: center;
      margin-top: 15px;
    }

    .login-box .extra a {
      text-decoration: none;
      color: lab(15.72% 45.06 -64.55);
      font-size: 14px;
    }

    .login-box .extra a:hover {
      text-decoration: underline;
    }