* {
      box-sizing: border-box;
    }

    html,
    body {
      width: 100%;
      min-height: 100vh;
      margin: 0;
    }

    body {
 	 background-color: #003EF2;
  	background-image: url('/img/backtech.png');
  	background-size: cover;
  	background-position: center;
  	background-repeat: no-repeat;
  	background-attachment: fixed;

  	display: flex;
  	justify-content: center;
  	align-items: center;
  	font-family: Arial, sans-serif;
  	padding: 30px 15px 70px;
  	position: relative;
    }

    /* CONTENIDO PRINCIPAL */

    .contenido-central {
      width: 100%;
      text-align: center;
    }

    /* ENCABEZADO */

    .encabezado {
      text-align: center;
      margin-bottom: 25px;
    }

    .logo {
      width: 80%;
      min-width: 160px;
      max-width: 500px;
      height: auto;
      display: block;
      margin: 0 auto;
    }

    .encabezado h2 {
      color: #fff;
      font-size: 28px;
      margin: 15px 0 0;
    }

    /* SERVICIOS */

    .services {
      width: 100%;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 18px;
      margin: 0 auto;
    }

    .service-btn {
      width: 125px;
      height: 125px;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: 20px;
      text-decoration: none;
      color: #fff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      transition: 0.3s ease;
      backdrop-filter: blur(6px);
    }

    .service-btn:hover {
      transform: translateY(-5px);
      background: #fff;
      color: #0038e0;
    }

    .service-btn i {
      font-size: 28px;
      margin-bottom: 10px;
    }

    .service-btn span {
      font-size: 10px;
      font-weight: bold;
      text-align: center;
    }

    /* COPYRIGHT */

    .copyright {
      position: absolute;
      bottom: 20px;
      left: 0;
      width: 100%;
      padding: 0 15px;
      text-align: center;
      color: #fff;
      font-size: 13px;
    }

    /* DISPOSITIVOS PEQUEÑOS */

    @media (max-width: 600px) {
      body {
        align-items: flex-start;
        padding-top: 35px;
      }

      .logo {
        width: 55%;
        min-width: 140px;
      }

      .encabezado h2 {
        font-size: 24px;
      }

      .service-btn {
        width: 105px;
        height: 105px;
      }

      .copyright {
        position: static;
        margin-top: 35px;
      }
    }