html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
/* *{
  outline: 1px solid red;
} */
:root{
  --primary-color: #151517;
  --second-black: #1A1B1D;
  --third-black: #2C2D2F;
  --secondary-color: #FAFAFA;
  --second-color-font: #A1A1A1;
  --font-family: "Lilita One", sans-serif;
  --second-font-family: "Roboto Mono", monospace;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  background-color: var(--primary-color);
  color: var(--secondary-color) !important;
}

h1, h2, h3, i{
  color: var(--secondary-color) !important;
}

.card{
  background-color: transparent;
  border: none !important;
}
/* =============================================
   CLASE PARA FOTO DE PERFIL
   ============================================= */
  .bg-img{
    background-image: url('img/foto_perfil.jpg');
    background-size: cover;
    background-position: center;
  }
  /* =============================================
   CLASES PARA HOVERS DE RRSS
   ============================================= */
  .rrss i{
  background-color: var(--third-black) !important;
  color: var(--secondary-color) !important;
  width: 50px;
  height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background-color 0.3s ease, color 0.3s ease;
  cursor: pointer;
  }
.rrss i:hover{
  background-color: var(--secondary-color) !important;
  color: var(--third-black) !important;
  }

/* =============================================
   CLASE BASE PARA TODAS LAS COLUMNAS
   ============================================= */
.columna-uno,
.columna-dos,
.columna-tres {
  position: relative;
  overflow: hidden;
}

.columna-uno::before,
.columna-dos::before,
.columna-tres::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: transform 0.85s ease;
  z-index: -1;
  

  transform: scaleY(0);
  transform-origin: top;  
}


.columna-uno:hover::before {
  transform: scaleY(1);
  background-color: #D7362D;
}

.columna-dos:hover::before {
  transform: scaleY(1);
  background-color: #D7362D;
}

.columna-tres:hover::before {
  transform: scaleY(1);
  background-color: #D7362D;
}

/* =============================================
   MEDIA QUERY PARA TABLETS Y MÓVILES
   ============================================= */
@media (max-width: 992px) {
  .columna-uno::before,
  .columna-dos::before,
  .columna-tres::before {
    transform: scaleX(0);
    transform-origin: left;
  }
  
  .columna-uno:hover::before,
  .columna-dos:hover::before,
  .columna-tres:hover::before {
    transform: scaleX(1);
  }

  }


/* =============================================
  PARA lenguajes-de-programacion.html
   ============================================= */
   .mega-font{
    font-size: 4.5rem;
   }
   .mega-font-sm{
    font-size: 2.8rem;
   }
   .second-font{
    font-family: var(--second-font-family);
    color: var(--second-color-font);
    font-size:1.06rem;
   }
   .btn{
    background-color: #D7362D;
    border: 2px solid var(--second-black);
    color: var(--secondary-color) !important;
    padding: 10px 20px;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.3s ease, color 0.3s ease;
   }
   .h-65{
    height: 65vh;
   }
   .h-10{
    height: 10vh;
   }
   .hover-underline:hover{
    text-decoration: underline;
    text-underline-offset: 4px;
    color: var(--secondary-color) !important;
   }

   /* =============================================
  PARA ejercicios-js-index.html
   ============================================= */

  .list-group-item{
    background-color: transparent;
    border: 2px solid var(--second-black);
    color: var(--secondary-color) !important;
    margin-bottom: 10px;
    transition: background-color 0.3s ease, color 0.3s ease;
  }
  .list-group-item:hover{
    background-color: #D7362D !important;
    color: var(--secondary-color) !important;
  }

  /* =============================================
   TIPOGRAFÍA RESPONSIVA CON CLAMP()
   ============================================= */
.mega-font {
    font-size: clamp(2rem, 8vw, 4.5rem);
}

.mega-font-sm {
    font-size: clamp(2.8rem, 5vw, 2.8rem);
}

.second-font {
    font-family: var(--second-font-family);
    color: var(--second-color-font);
  
    font-size: clamp(1.06rem, 2.5vw, 1.06rem);
}
@media (max-width: 992px) {
  .m-q{
    margin-top: 40px;
    border: none !important;
  }
  .text-center{
    text-align: start !important;
  }
  .encabezado {
    justify-content: center !important;
  }
}