html {
    scroll-behavior: smooth;
}

main{
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 10px;
  margin: 10px;
  padding: 20px;
}


/**************** Primera sección de Galeria ****************/

.galeria-3d .scene, 
.galeria-3d .a3d { 
    display: grid;
}

.galeria-3d .scene {
    overflow: hidden;
    perspective: 35em;
    mask: linear-gradient(90deg, #0000, red 20% 80%, #0000);
}

.galeria-3d .a3d {
    place-self: center;
    transform-style: preserve-3d;
    animation: ry 32s linear infinite;
}

@keyframes ry { 
    to { transform: rotateY(360deg); } 
}

.galeria-3d .card {
    --w: 17.5em;
    --ba: calc(360deg / var(--n));

    grid-area: 1 / 1;
    width: var(--w);
    aspect-ratio: 7 / 10;
    object-fit: cover;
    border-radius: 1.5em;
    backface-visibility: hidden;

    transform: 
        rotateY(calc(var(--i) * var(--ba)))
        translateZ(calc(-1 * (0.5 * var(--w) + 0.5em) / tan(0.5 * var(--ba))));
}

/* Opcional: más lento si el usuario lo prefiere */
@media (prefers-reduced-motion: reduce) {
    .galeria-3d .a3d { 
        animation-duration: 128s; 
    }
}



/**************** Segunda sección de Galeria ****************/

.galeria-scroll {
    display: grid;
    grid-template-columns: 60px 1fr;
}

/* NAV IMÁGENES */
.galeria-scroll nav img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
}

/* Hover elegante */
.galeria-scroll nav img:hover {
    transform: scale(1.1);
    border: 2px solid #D4A017;
    box-shadow: 0 0 10px rgba(212,160,23,0.6);
}

/* Imagen activa */
.galeria-scroll nav a.activo img {
    border: 2px solid #D4A017;
    transform: scale(1.1);
}

/* Pantallas medianas */
@media (min-width: 600px){
    .galeria-scroll {
        grid-template-columns: 200px 1fr;
    }
}

/* NAV */
.galeria-scroll nav {
    height: 100vh;
    position: sticky;
    top: 0;
    padding: 2rem;
    border-radius: 10px;  
    background: linear-gradient(
        180deg,
        #0A2A43 0%,
        #000000 50%,
        #D4A017 100%
    );
}

.galeria-scroll nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(50px,1fr));
}

/* MAIN */
.galeria-scroll main {
    padding: 2rem;
}

.galeria-scroll main section {
    height: 100vh;
    position: relative;
    margin-bottom: 2rem;
    scroll-margin-top: 20px; /* mejora salto */
}

.galeria-scroll main section img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    border-radius: 10px;
}

/* TEXTO */
.galeria-scroll header {
    position: sticky;
    top: 0;
    padding: 1rem;
    background: rgba(0,0,0,0.5);
    color: white;
    border-radius: 10px 10px 0 0;
}

@media (max-width: 850px){

    /* Oculta navegación */
    .galeria-scroll nav{
        display: none;
    }

    /* Layout vertical */
    .galeria-scroll{
        grid-template-columns: 1fr;
    }

    /* 🔥 CLAVE: quitar altura fija */
    .galeria-scroll main section{
        height: auto;
        padding: 20px 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .galeria-scroll main{
        padding: 1rem;
    }

    .galeria-scroll header{
        font-size: 14px;
        padding: 10px;
        position: relative; /* evita que se pegue arriba */
        width: 90%;
    }

    .galeria-scroll main section img{
        position: relative; /* quita absolute */
        width: 90%;
        height: 250px;
        margin: 10px auto;
        display: block;
        object-fit: cover;
        border-radius: 10px;

        /* ✨ mejora visual */
        box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    }
}