body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(
    ellipse 90% 50% at 50% 100%, 
    rgba(0, 20, 60, 0.7),  /* azul oscuro brillante desde abajo */
    transparent 70%
  ),
  #000000; /* fondo base negro */
 }
.contenedor{
    display: flex;
    overflow: hidden;
    justify-content: center;
    align-items: center; /* hace que el texto que esta al lado del icono quede bien ordenado*/
    gap: 30px;
    height: 100vh;

    /*para hacer el fecto de aparición con scroll*/
    opacity: 0;
    transform: translateY(20px);
    animation: aparecer 2s ease-out forwards;
}

@keyframes aparecer {
  to {
    opacity: 1;
    transform: translateY(0);
  }

}

.perfil{
    width: 320px;
    height: 320px;
    border-radius: 50%;
    overflow: hidden;
    margin-left:40px;
    flex-shrink: 0;         /* El icono no se encoge */
    filter: drop-shadow(0 10px 20px rgba(13, 82, 230, 0.712));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
}
.perfil:hover{
  transform: translateY(-10px); /* se levanta 10px hacia arriba */
  box-shadow:  0 10px 20px rgba(255, 255, 255, 0.4); /* sombra más fuerte */
}

.perfil img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
header{
    position: fixed;         /* Hace que el header se quede fijo */
    top: 0;                  /* Lo posiciona en la parte superior */
    left: 0;
    right: 0;
    z-index: 1000;           /* Asegura que esté por encima de otros elementos */
    justify-content: space-between;
    align-items: center;
    display: flex;
    box-shadow: 0 2px 40px rgb(2, 39, 112);
    height: 80px;
}
nav{
    display: flex;
    font-size: 20px;
    gap: 50px;
    align-items: center;
    margin-left: auto;
}
nav a{
    text-decoration: none;
    color: beige;    
    padding: 0 15px;
    margin-right: 20px;
    font-family:'Times New Roman', Times, serif;
    position: relative;    /* El <a> sirve de referencia para el ::after */    
    text-shadow:
    8px 8px 10px #3a0ca7,
    0 0 20px #3a0ca7,
    0 0 20px #3a0ca7,
    0 0 20px #3a0ca7;
    transition: .5s ease;
    
}
nav a:hover{
    color:rgb(13, 71, 187);
}
nav a::after{
    content: '';               /* Crea el pseudo-elemento */
    position: absolute;        /* Se posiciona relativo al <a> */
    left: 0;                   /* Arranca desde la izquierda */
    bottom: -5px;              /* Lo colocamos debajo del texto */
    width: 0;                  /* Empieza invisible (sin ancho) */
    height: 3px;               /* Grosor de la línea */
    background-color: rgb(32, 107, 255);
    transition: width 0.3s ease; /* Animación del ancho */
}
nav a:hover::after{
    width: 100%;
}

.Portafolio{
    font-family: "Libre Baskerville", serif;
    font-size: 30px;
    margin-left: 30px;
    color: beige;
    font-style: italic;
    text-shadow:
    8px 8px 10px #3a0ca7,
    0 0 20px #3a0ca7,
    0 0 20px #3a0ca7,
    0 0 20px #3a0ca7;
}
h1{
    color: rgb(255, 255, 255);
}
.Resaltado{
    color: rgb(37, 152, 206);

}
p{
    color: rgb(177, 176, 176);
    font-size: 17px;
    font-family:Georgia, 'Times New Roman', Times, serif;
}
h3{
    color: aliceblue;
}
.mensaje{
    font-family:serif;
    color: rgb(208, 215, 218);
    width: 40ch;
    text-wrap: nowrap;
    overflow: hidden;
    animation: mensaje 2s steps(30) infinite alternate-reverse;
}
@keyframes mensaje {
    from{
        width: 0ch;
    }
}


.iconos{
    width: 40px;

}
.RedesIconos{
    text-decoration: none;
}


/* ----------------------------------- */



/* segundo apartado de la pagina educacion */

.Educación{
    display: flex;
    justify-content: center;
    color: white;
    font-family: Georgia, 'Times New Roman', Times, serif;
    font-style: italic;
    text-shadow:0 0 20px rgb(199, 189, 199);  
}

#Educacion{
    
    scroll-margin-top: 100px; /* altura aproximada del header */
}
ul{
    margin-left: 50px;
}

/* --------------------------- /*




/* tercer apartado de la pagina habilidades */


.habilidades-contenedor{
    display: grid;
    gap: 40px;
    grid-template-columns: repeat(3, minmax(300px, 1fr)); /* 3 columnas */
    justify-items: center;
    
}

#habilidades-section{
    min-height: 100vh;
    padding-top: 80px;
    scroll-margin-top: 80px;
}
.HabilidadesTitulo{
    display: flex;
    justify-content: center;
    margin-top: 100px;
    color: white;
    font-family: Georgia, 'Times New Roman', Times, serif;
    font-style: italic;
    text-shadow:0 0 20px rgb(199, 189, 199);
}
.HTMLdiv{
    width: 300px;
    height: 320px;
    justify-content: center;
    align-items: center;
    display: flex;
    flex-direction: column;
    background-color: #121212;
    border-radius: 20px;
    filter: drop-shadow(0 0 10px rgb(14, 88, 248));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
    
    
}

.HTML{
    color: white;
    display: flex;
    justify-content: center;
    
}
.HTMLIMAGEN{
    width: 60px;
    filter: drop-shadow(0 0 10px rgb(14, 221, 248));
}

.CSSdiv{
    width: 300px;
    height: 320px;
    justify-content: center;
    align-items: center;
    display: flex;
    flex-direction: column;
    background-color: #121212;
    border-radius: 20px;
    filter: drop-shadow(0 0 10px rgb(14, 88, 248));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
    
    
}
.CSS{
    color: white;
    
}
.cssimg{
    width: 60px;
    filter: drop-shadow(0 0 10px rgb(14, 221, 248));
}

.visualStudiodiv{
    width: 300px;
    height: 320px;
    justify-content: center;
    align-items: center;
    display: flex;
    flex-direction: column;
    background-color: #121212;
    border-radius: 20px;
    filter: drop-shadow(0 0 10px rgb(14, 88, 248));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
}
.visualStudio{
    color: white;
}
.visualimg{
    width: 60px;
    filter: drop-shadow(0 0 10px rgb(14, 221, 248));
}

.GitHubdiv{
    width: 300px;
    height: 320px;
    justify-content: center;
    align-items: center;
    display: flex;
    flex-direction: column;
    background-color: #121212;
    border-radius: 20px;
    filter: drop-shadow(0 0 10px rgb(14, 88, 248));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
}
.GitHub{
    color: white;
}
.githubimg{
    width: 60px;
    filter: drop-shadow(0 0 10px rgb(14, 221, 248));
}

.exceldiv{
    width: 300px;
    height: 320px;
    justify-content: center;
    align-items: center;
    display: flex;
    flex-direction: column;
    background-color: #121212;
    border-radius: 20px;
    filter: drop-shadow(0 0 10px rgb(14, 88, 248));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
}
.Excel{
    color: white;
}
.excelimg{
    width: 60px;
    filter: drop-shadow(0 0 10px rgb(14, 221, 248));
}

.workbenchdiv{
    width: 300px;
    height: 320px;
    justify-content: center;
    align-items: center;
    display: flex;
    flex-direction: column;
    background-color: #121212;
    border-radius: 20px;
    filter: drop-shadow(0 0 10px rgb(14, 88, 248));
    transition: trasnform 0.3s ease, box-shadow 0.3s ease;
}
.workbench{
    color: white;
}

.workbenchimg{
    width: 60px;
    filter: drop-shadow(0 0 10px rgb(14, 221, 248));
}
.HTMLdiv:hover, .CSSdiv:hover, .visualStudiodiv:hover, .GitHubdiv:hover, .exceldiv:hover,.workbenchdiv:hover{
  transform: translateY(-10px); /* se levanta 10px hacia arriba */
  box-shadow:  0 10px 20px rgba(255, 255, 255, 0.4); /* sombra más fuerte */
}

/* ========================================= */
/* MEDIA QUERIES - RESPONSIVE DESIGN */
/* ========================================= */

/* Tablets y pantallas medianas (hasta 1024px) */
@media screen and (max-width: 1024px) {
    .habilidades-contenedor{
        grid-template-columns: repeat(2, minmax(250px, 1fr));
        gap: 30px;
    }
    
    nav{
        gap: 30px;
        font-size: 18px;
    }
    
    .perfil{
        width: 280px;
        height: 280px;
        margin-left: 20px;
    }
}

/* Tablets pequeñas (hasta 768px) */
@media screen and (max-width: 768px) {
    .contenedor{
        flex-direction: column;
        height: auto;
        padding: 100px 20px 50px;
        gap: 20px;
    }
    
    .perfil{
        width: 250px;
        height: 250px;
        margin-left: 0;
    }
    
    .informacion{
        text-align: center;
        max-width: 100%;
    }
    
    h1{
        font-size: 1.8rem;
    }
    
    .mensaje{
        width: 100%;
        text-wrap: wrap;
        animation: none;
    }
    
    nav{
        gap: 20px;
        font-size: 16px;
    }
    
    nav a{
        padding: 0 10px;
        margin-right: 10px;
    }
    
    .Portafolio{
        font-size: 24px;
        margin-left: 15px;
    }
    
    .habilidades-contenedor{
        grid-template-columns: repeat(2, minmax(200px, 1fr));
        gap: 20px;
    }
    
    .HTMLdiv, .CSSdiv, .visualStudiodiv, .GitHubdiv, .exceldiv, .workbenchdiv{
        width: 100%;
        max-width: 280px;
        height: auto;
        min-height: 300px;
    }
    
    ul{
        margin-left: 30px;
        margin-right: 20px;
    }
    
    #Educacion{
        padding: 20px;
    }
}

/* Móviles (hasta 480px) */
@media screen and (max-width: 480px) {
    header{
        height: 70px;
        flex-direction: column;
        height: auto;
        padding: 15px 10px;
        gap: 10px;
    }
    
    nav{
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        margin-left: 0;
    }
    
    nav a{
        font-size: 14px;
        padding: 5px 8px;
        margin-right: 0;
        text-shadow:
        4px 4px 5px #3a0ca7,
        0 0 10px #3a0ca7;
    }
    
    .Portafolio{
        font-size: 20px;
        margin-left: 0;
        text-align: center;
    }
    
    .contenedor{
        padding: 140px 15px 30px;
    }
    
    .perfil{
        width: 200px;
        height: 200px;
    }
    
    h1{
        font-size: 1.5rem;
    }
    
    p{
        font-size: 15px;
    }
    
    .iconos{
        width: 35px;
    }
    
    .habilidades-contenedor{
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .HTMLdiv, .CSSdiv, .visualStudiodiv, .GitHubdiv, .exceldiv, .workbenchdiv{
        width: 100%;
        max-width: 100%;
        padding: 15px;
    }
    
    .HabilidadesTitulo, .Educación{
        font-size: 1.5rem;
        margin-top: 50px;
    }
    
    ul{
        margin-left: 15px;
        margin-right: 10px;
        padding-left: 20px;
    }
    
    ul li{
        margin-bottom: 15px;
    }
    
    #habilidades-section{
        padding-top: 60px;
    }
    
    #Educacion{
        scroll-margin-top: 80px;
    }
}

/* Móviles muy pequeños (hasta 375px) */
@media screen and (max-width: 375px) {
    .perfil{
        width: 180px;
        height: 180px;
    }
    
    h1{
        font-size: 1.3rem;
    }
    
    .Portafolio{
        font-size: 18px;
    }
    
    nav a{
        font-size: 13px;
        padding: 5px 6px;
    }
}