:root {
    --color-oscuro: #036280;
    --color-medio: #378BA4;
    --color-claro: #81BECE;
    
}

* {
    color: white;

}

a{
    text-decoration: none;
}

#Video_fondo {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

header {
   width: 100wh;    /*para que se quede igual de ancho que la imagen*/
   display: flex;
   justify-content: center;
   align-items: center;
}

header div{
    width: 400px;
    height: 30px;

    border-radius: 20px;
    

    /* Margen y padding */
    padding: 10px;
    margin-top: 50px;
    
    display: flex;
    justify-content: space-around;
    align-items: center;
    background-color: var(--color-oscuro);
}
.header > a {
    font-size: 20px;
    
    transition-property: all;
    transition-duration: 1s;
}

.Foto-perfil{
    display: flex;
    justify-content: center;
    align-items: start; 
    
}

#Foto1 {
    width: 400px;
    height: 400px; /* Forzamos que sea un cuadrado */
    object-fit: cover; /* Recorta sin deformar */
    border-radius: 100%;
    position: relative;

   
}

.presentacion{
    height: 90vh;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    
}

#Contacto article > p{
    margin-left: 10px;
}

.galeria-certificados {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 20px;
    text-align: center;
}

.galeria-certificados h2 {
    margin-bottom: 30px;
    font-size: 2rem;
}

.grid-certificados {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.grid-certificados figure {
    background: rgba(11, 186, 239, 0.2);
    border-radius: 12px;
    padding: 15px;
    transition: transform 0.2s ease;
}


.grid-certificados img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.grid-certificados figcaption {
    margin-top: 10px;
    font-weight: 600;
    font-size: 0.95rem;
}


#mi-historia{
    width: 100wh;
    display: flex;
    justify-content: center;
}

#mi-historia div{
    width: 80%;
    padding: 20px;
    background-color: var(--color-oscuro);
    border-radius: 25px;
}


footer {
    display: flex;
    justify-content: space-around;
    align-items: center;

    margin-top: 200px;
    background-color: #012E4A;
    opacity: 0.8;

    height: 150px;
    width: 100%;

    
}

footer > a {
    transition-property: all;
    transition-duration: 1s;
}



/* --------------------- INTERACCIONES --------------------- */   

.header a:hover {
    scale: 1.2;
    transition-duration: 400ms;
}

.grid-certificados figure:hover {
    transform: translateY(-5px);
}

footer > a:hover {
    scale: 1.2;
}

@media screen and (max-width: 800px) {
    #Foto1{
        width: 300px;
        height: 300px;
    }
}

@media screen and (max-width: 550px) {
    .presentacion{
        display: flex;
        flex-direction: column-reverse;
        margin-bottom: 100px;
    }
    #Foto1{
        width: 250px;
        height: 250px;

    }

    footer{
        margin-top: 100px;
    }

    footer img{
        width: 70px;
    }
}