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


html, body{
  display: grid;
  height: 100vh;
  width: 100%;
  place-items: center;
  background: linear-gradient(to right, #4facfe 0%, #00f2fe 100%);

   /* La imagen de fondo para toda la página */
    background-image: url('img/EDIFICIO.JPG'); /* Reemplaza con la ruta correcta de tu imagen */
    background-repeat: no-repeat; /* Evita que la imagen se repita */
    background-size: cover; /* Asegura que la imagen cubra toda la pantalla */
    background-position: center; /* Centra la imagen */
    background-attachment: fixed; /* Mantiene la imagen fija al hacer scroll */
    height: 100vh; /* Asegura que el fondo cubra toda la altura de la vista */
    margin: 0; /* Elimina el margen predeterminado del body */
    color: white; /* Color de texto para mejor contraste si la imagen es oscura */
    font-size: 20px;
    text-align: center;
}

.title {
  text-align: center;
  margin-bottom: 20px;
  position: relative;
}

.title h2 {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 5px;
}

.title .underline {
  width: 50px;
  height: 3px;
  background: linear-gradient(to right, #3b82f6, #ec4899); /* azul - rosado */
  margin: 0 auto 10px auto;
  border-radius: 2px;
}


::selection{
  background: #4facfe;
}
.container{
  background: #fff;
  max-width: 350px;
  width: 100%;
  padding: 25px 30px;
  border-radius: 5px;
  box-shadow: 0 10px 10px rgba(0, 0, 0, 0.15);
}
.container form .title{
  font-size: 30px;
  font-weight: 600;
  margin: 20px 0 10px 0;
  position: relative;
}
.container form .title:before{
  content: '';
  position: absolute;
  height: 4px;
  width: 33px;
  left: 0px;
  bottom: 3px;
  border-radius: 5px;
  background: linear-gradient(to right, #4facfe 0%, #ff0080 100%);
}
.container form .input-box{
  width: 100%;
  height: 45px;
  margin-top: 25px;
  position: relative;
}
.container form .input-box input{
  width: 100%;
  height: 100%;
  outline: none;
  font-size: 16px;
  border: none;
}
.container form .underline::before{
  content: '';
  position: absolute;
  height: 2px;
  width: 100%;
  background: #ccc;
  left: 0;
  bottom: 0;
}
.container form .underline::after{
  content: '';
  position: absolute;
  height: 2px;
  width: 100%;
  background: linear-gradient(to right, #4facfe 0%, #ff0080 100%);
  left: 0;
  bottom: 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: all 0.3s ease;
}
.container form .input-box input:focus ~ .underline::after,
.container form .input-box input:valid ~ .underline::after{
  transform: scaleX(1);
  transform-origin: left;
}
.container form .button{
  margin: 40px 0 20px 0;
}
.container .input-box input[type="submit"]{
  background: linear-gradient(to right, #4facfe 0%, #ff0080 100%);
  font-size: 17px;
  color: #fff;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.container .input-box input[type="submit"]:hover{
  letter-spacing: 1px;
  background: linear-gradient(to left, #00f2fe 0%, #ff0080 100%);
}
.container .option{
  font-size: 14px;
  text-align: center;
}
.container .facebook a,
.container .twitter a{
  display: block;
  height: 45px;
  width: 100%;
  font-size: 15px;
  text-decoration: none;
  padding-left: 20px;
  line-height: 45px;
  color: #fff;
  border-radius: 5px;
  transition: all 0.3s ease;
}
.container .facebook i,
.container .twitter i{
  padding-right: 12px;
  font-size: 20px;
}
.container .twitter a{
  background: linear-gradient(to right,  #833ab4 0%, #fd1d1d 100%);
  margin: 20px 0 15px 0;
}
.container .twitter a:hover{
  background: linear-gradient(to left,  #00acee 0%, #1abeff 100%);
  margin: 20px 0 15px 0;
}
.container .facebook a{
  background: linear-gradient( to right,  #3b5998 0%, #476bb8 100%);
  margin: 20px 0 50px 0;
}
.container .facebook a:hover{
  background: linear-gradient( to left,  #3b5998 0%, #476bb8 100%);
  margin: 20px 0 50px 0;
}