:root {
    --primary-color: #2c3e50;
    --secondary-color: #1e52a0;
    --sombra: #1e52a044;
    --accent-color: #e74c3c;
    --light-bg: #ecf0f1;
    --dark-text: #2c3e50;
    --fondo_inicio1: #695858;
    --fondo_inicio2: #a3332bcb;
}

/* Responsive: en pantallas pequeñas se apila */
@media screen and (max-width: 900px){
  .artist-hero{
    grid-template-columns: 1fr;
  }
  .artist-hero__media{
    justify-self: center;           /* o center si preferís */
  }
  .artist-hero__img{
    max-width: 420px;
  }

  #neolitico_model{display: none;}

  .btnDiv{
    max-width: 100% !important;
    margin-left: 0px !important;
  }

  .btnDiv .btn_model{
    font-size: 12pt;
    padding: 8px !important;
    width: 100% !important;
  }

  .btnDiv>div{
    width:33% !important;
  }

  .btnDiv>div:first-child{
    margin-left: 0 !important;
  }
  .btnDiv>div:last-child{
    margin-right: 0 !important;
  }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    line-height: 1.6;
}

/* Ancho del scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

/* Fondo del scrollbar (la pista) */
::-webkit-scrollbar-track {
    background: var(--primary-color);
    border-radius: 10px;
}

/* La barra deslizable (thumb) */
::-webkit-scrollbar-thumb {
    background: var(--light-bg);
    border-radius: 10px;
    cursor: pointer;
}

/* La barra deslizable al pasar el mouse (hover) */
::-webkit-scrollbar-thumb:hover {
    background: rgb(131, 131, 131);
}

/* Navegación */
.navbar {
    background: linear-gradient(135deg, black, var(--secondary-color));
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
}

#main-navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1030;
    transition: position 0.3s ease;
}
#main-navbar.anchored {
    position: absolute;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: white !important;
}

.nav-link {
    color: rgba(255,255,255,0.9) !important;
    margin: 0 0.5rem;
    transition: all 0.3s;
}

.nav-link:hover {
    color: white !important;
    transform: translateY(-2px);
}

.Actived{
    text-decoration: underline;
}

/* Nav Contenido */
#navContenido{
    position: fixed;
    top: 80px;
    bottom: 0;
    z-index: 1000;
    padding: 15px;
    padding-right: 50px;
    padding-top: 50px;
    width: 300px;
    transition: all 0.5s ease;
}

.navVisible{
    box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.3);
    background-color: var(--light-bg);
}

.navOculto{
    background-color: transparent;
    box-shadow: none;
    transform: translateX(-290px);
}

.ul_Secciones{
    list-style-type: none;
    padding-left: 10px;
    margin: 0;
}

.ul_Secciones > li, .ul_Subsecciones > li{
    position: relative;
}

.ul_Secciones li a{
    text-decoration: none;
    color: var(--secondary-color);
    cursor: pointer;
}

.ul_Subsecciones{
    list-style-type: none;
    padding-left: 10px;
    margin: 0;
}
.ul_Subsecciones li a{
    cursor: pointer;
    color: var(--dark-text);
}

.marcador {
    position: absolute;
    right: -70px;
    top: 5%;
    height: 30px;
    width: 50px;
    background-color: var(--secondary-color);
    box-shadow: 5px 15px 5px rgba(0, 0, 0, 0.5);
    transition: top 0.3s ease;
    clip-path: polygon(0 0, 75% 0, 100% 50%, 75% 100%, 0 100%);
}

/* Mejorar la sección activa */
.SeccionActiva {
    padding: 5px;
    padding-left: 0;
    font-size: 15pt;
    font-weight: bold; /* Opcional: hacer más visible */
    transition: all 0.3s ease;
}

.SeccionActiva > a {
    color: var(--secondary-color) !important; /* Resaltar el link activo */
}

/* Hero Section */
.hero-section {
    padding-top: 80px;
    min-height: 90vh;
    background: 
        /* Viñeta oscura en los bordes */
        radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.8) 100%),
        /* Luz en el centro donde están los sólidos */
        radial-gradient(ellipse 60% 45% at 55% 55%, var(--secondary-color) 10%, transparent 100%),
        /* Fondo base azul marino */
        linear-gradient(160deg, #080f25 0%, #0f1d4a 35%, #0c1840 60%, #060d20 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-section .interactive-model {
    background: radial-gradient(ellipse 60% 45% at 50% 60%, rgba(255,255,255,0.15) 0%, transparent 70%);

}

.hero-section .interactive-model .model-3d {
    background: radial-gradient(ellipse 60% 45% at 50% 60%, rgba(255,255,255,0.15) 0%, transparent 70%);
}

/* Capa de estrellas pequeñas */
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(1.5px 1.5px at 5%  10%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 12% 30%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 18% 65%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 22% 88%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 30% 5%,  white 0%, transparent 100%),
        radial-gradient(1px   1px   at 35% 48%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 40% 78%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 48% 22%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 52% 92%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 58% 38%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 63% 12%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 68% 55%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 72% 82%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 78% 28%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 83%  8%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 88% 70%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 93% 42%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 97% 90%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at  8% 50%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 25% 20%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 44% 60%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 60% 72%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 75% 15%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 90% 55%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 15% 95%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 50% 85%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 85% 35%, white 0%, transparent 100%),
        radial-gradient(2px   2px   at 33% 42%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at 66% 90%, white 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 95% 18%, white 0%, transparent 100%),
        radial-gradient(1px   1px   at  3%  42%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at  7%  80%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(1px   1px   at 13%   8%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(2px   2px   at 19%  60%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1px   1px   at 24%  92%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 31%  25%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 36%  68%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 43%  14%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 49%  48%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 56%  90%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 61%  22%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 67%  75%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 74%  35%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 80%  58%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 84%  12%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 88%  88%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 91%  45%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 94%   8%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 96%  65%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at  2%  95%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 10%  35%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 26%  78%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 39%  52%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 52%  18%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 64%  95%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 77%  28%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 89%  82%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 99%  40%, rgba(180,210,255,0.8) 0%, transparent 100%);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    background-attachment: fixed; 
    animation: twinkle 5s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}

/* Segunda capa de estrellas con animación desfasada */
.hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(1.5px 1.5px at 9%  18%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 17% 72%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(2px   2px   at 28% 38%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(1px   1px   at 38% 85%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 47%  5%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 54% 65%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 62% 45%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 71% 88%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 79%  2%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(1px   1px   at 86% 62%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(2px   2px   at 92% 25%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 98% 78%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 20% 55%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 42% 30%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(2px   2px   at 73% 50%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(1px   1px   at  3%  42%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at  7%  80%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(1px   1px   at 13%   8%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(2px   2px   at 19%  60%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1px   1px   at 24%  92%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 31%  25%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 36%  68%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 43%  14%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 49%  48%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 56%  90%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 61%  22%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 67%  75%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 74%  35%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 80%  58%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 84%  12%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 88%  88%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 91%  45%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 94%   8%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 96%  65%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at  2%  95%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 10%  35%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 26%  78%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 39%  52%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 52%  18%, rgba(180,210,255,0.8) 0%, transparent 100%),
        radial-gradient(1px   1px   at 64%  95%, rgba(180,210,255,0.6) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 77%  28%, rgba(180,210,255,0.9) 0%, transparent 100%),
        radial-gradient(1px   1px   at 89%  82%, rgba(180,210,255,0.7) 0%, transparent 100%),
        radial-gradient(2px   2px   at 99%  40%, rgba(180,210,255,0.8) 0%, transparent 100%);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    background-attachment: fixed; 
    animation: twinkle 4s ease-in-out infinite alternate-reverse;
    pointer-events: none;
    z-index: 0;
}

/* Animación de titileo */
@keyframes twinkle {
    0%   { opacity: 0.3; }
    25%  { opacity: 0.8; }
    50%  { opacity: 0.5; }
    75%  { opacity: 1;   }
    100% { opacity: 0.4; }
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 2;
    padding: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-model-container {
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 2rem;
    margin: 2rem 0;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.2);
}

.model-placeholder {
    background: rgba(255,255,255,0.15);
    border-radius: 15px;
    padding: 3rem;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(255,255,255,0.3);
}

/* Secciones de contenido */
.content-section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-align: center;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    text-align: left;
    margin-bottom: 3rem;
    margin-top: 3rem;
}

.container_img{
    text-align: center;
}
/*img{
    border-radius: 10px;
    box-shadow: 7px -1px 15px var(--sombra);
}*/

/* CONTENEDOR DE POLYPADS */
.interactive-polypad {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
    overflow: hidden;
}

.polypad-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.polypad-header h5 {
    color: var(--primary-color);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.polypad-controls {
    display: flex;
    gap: 0.5rem;
}

.btn-polypad {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    width: min-content;
    gap: 0.5rem;
}

.btn-polypad:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.polypad-container {
    width: 100%;
    overflow: hidden;
    background: var(--light-bg);
}

.polypad-embed {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    overflow: hidden;
}

.polypad-embed::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

.polypad-embed {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

@media (max-width: 1200px) {
    .polypad-container {
        height: 550px;
    }
}

@media (max-width: 992px) {
    .polypad-container {
        height: 500px;
    }
}

@media (max-width: 768px) {
    .polypad-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .polypad-container {
        height: 450px;
    }
}

@media (max-width: 576px) {
    .polypad-container {
        height: 400px;
    }
}

@media (max-width: 480px) {
    .polypad-container {
        height: 350px;
    }
    .polypad-header h5{
        font-size: 12pt;
    }
}

/* Container para cada sólido */

.Solido_container{
    border: none;
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 1px 1px 20px rgba(0, 0, 0, 0.301);
}

.Solido_container > div > div > .properties-grid > .property-box{
    background: none;
    color: var(--primary-color);
    width: max-content;
    height: min-content;
    box-shadow: 1px 1px 10px var(--sombra);
}

.Solido_container > div > div > .row > .properties-grid > .property-box > .property-value{
    font-size: 1.1rem;
}

.extra{
    position: absolute;
    bottom: 5px;
    left: 0;
    right: 0;
    margin: 0;
    font-size: 8pt;
}

.Solido_container_simbology{
    position: relative;
    background-color: white;
    cursor: pointer;
    border: none;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    transition: all ease-in-out .7s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.Solido_container_cosmology{
    position: relative;
    background-color: white;
    cursor: pointer;
    border: none;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    transition: all ease-in-out .7s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    border: 4px rgb(219, 219, 219) solid;
    min-height: 200px;
}
.Solido_container_simbology:hover{
    background-color: #00000000;
    color: white;
}

.Solido_container_cosmology>h5,.Solido_container_cosmology>p{
    z-index: 1;
}

.Solido_container_cosmology>img{
    position: absolute;
    z-index: 0;
    opacity: 0.1;
}
.Solido_container_cosmology:hover{
    border-color: var(--secondary-color);
    background: var(--secondary-color);
    color: white;
    text-shadow: 2px 5px 5px rgba(0, 0, 0, 0.671);
}

#Tetraedro h3{
    background: linear-gradient(
        -30deg,
        black,
        #d94a4a,
        #e87050,
        #f39c5a,
        #d94a4a,
        #e87050,
        #f39c5a
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    
    color: #fff;
    padding: 1.5rem 2rem;
    border-radius: 5px;
    text-align: center;
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
    font-weight: bold;
}

#Solido_container_Tetraedro::before{
    background: linear-gradient(
        -30deg,
        black,
        #d94a4a,
        #e87050,
        #f39c5a,
        #d94a4a,
        #e87050,
        #f39c5a
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    content: '';
    position: absolute;
    border-radius: 20px;
    padding: 4px;
    top: -4px;
    bottom: -4px;
    left: -4px;
    right: -4px;

    z-index: -1;
}

#Tetraedro > div > div > .properties-grid > .property-box{
    border: solid 5px #e87050;
}

#Tetraedro > div > div > .row > .properties-grid > .property-box{
    background: linear-gradient(
        45deg,
        #d94a4a,
        #e87050,
        #f39c5a
    );
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
}

#Hexaedro h3{
    background: linear-gradient(
        -30deg,
        black,
        #46302c,
        #856445,
        #a3694e,
        #46302c,
        #856445,
        #a3694e
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    
    color: #fff;
    padding: 1.5rem 2rem;
    border-radius: 5px;
    text-align: center;
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
    font-weight: bold;
}

#Solido_container_Hexaedro::before{
    background: linear-gradient(
        -30deg,
        black,
        #46302c,
        #856445,
        #a3694e,
        #46302c,
        #856445,
        #a3694e
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    content: '';
    position: absolute;
    border-radius: 20px;
    padding: 4px;
    top: -4px;
    bottom: -4px;
    left: -4px;
    right: -4px;

    z-index: -1;
}

#Hexaedro > div > div > .properties-grid > .property-box{
    border: solid 5px #a3694e;
}

#Hexaedro > div > div > .row > .properties-grid > .property-box{
    background: linear-gradient(
        45deg,
        #46302c,
        #856445,
        #a3694e
    );
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
}

#Octaedro h3{
    background: linear-gradient(
        -30deg,
        rgb(253, 253, 253),
        #8cd8eb,
        #83fff5,
        #c6fffc,
        #8cd8eb,
        #83f1ff,
        #c6fffc
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    
    color: #fff;
    padding: 1.5rem 2rem;
    border-radius: 5px;
    text-align: center;
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
    font-weight: bold;
}

#Solido_container_Octaedro::before{
    background: linear-gradient(
        -30deg,
        rgb(253, 253, 253),
        #8cd8eb,
        #83fff5,
        #c6fffc,
        #8cd8eb,
        #83f1ff,
        #c6fffc
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    content: '';
    position: absolute;
    border-radius: 20px;
    padding: 4px;
    top: -4px;
    bottom: -4px;
    left: -4px;
    right: -4px;

    z-index: -1;
}
#Solido_container_Octaedro:hover{
    color: black;
}


#Octaedro > div > div > .properties-grid > .property-box{
    border: solid 5px #83f1ff;
}

#Octaedro > div > div > .row > .properties-grid > .property-box{
    background: linear-gradient(
        45deg,
        #8cd8eb,
        #83fff5,
        #c6fffc
    );
    color: var(--primary-color);
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
}

#Dodecaedro h3{
    background: linear-gradient(
        -30deg,
        rgb(0, 0, 0),
        #6a4177,
        #12a397,
        #000000,
        #6a4177,
        #12a397,
        #000000
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    
    color: #fff;
    padding: 1.5rem 2rem;
    border-radius: 5px;
    text-align: center;
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
    font-weight: bold;
}
#Solido_container_Dodecaedro::before{
    background: linear-gradient(
        -30deg,
        rgb(0, 0, 0),
        #6a4177,
        #12a397,
        #000000,
        #6a4177,
        #12a397,
        #000000
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    content: '';
    position: absolute;
    border-radius: 20px;
    padding: 4px;
    top: -4px;
    bottom: -4px;
    left: -4px;
    right: -4px;

    z-index: -1;
}

#Dodecaedro > div > div > .properties-grid > .property-box{
    border: solid 5px #6a4177;
}

#Dodecaedro > div > div > .row > .properties-grid > .property-box{
    background: linear-gradient(
        45deg,
        #6a4177,
        #12a397,
        #000000
    );
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
}

#Icosaedro h3{
    background: linear-gradient(
        -30deg,
        black,
        #4a54d9,
        #50a4e8,
        #47cef0,
        #4a54d9,
        #50a4e8,
        #47cef0
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    
    color: #fff;
    padding: 1.5rem 2rem;
    border-radius: 5px;
    text-align: center;
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
    font-weight: bold;
}

#Solido_container_Icosaedro::before{
    background: linear-gradient(
        -30deg,
        black,
        #4a54d9,
        #50a4e8,
        #47cef0,
        #4a54d9,
        #50a4e8,
        #47cef0
    );
    background-size: 400% 400%;
    animation: efecto_elemento 15s ease infinite;
    content: '';
    position: absolute;
    border-radius: 20px;
    padding: 4px;
    top: -4px;
    bottom: -4px;
    left: -4px;
    right: -4px;

    z-index: -1;
}

#Icosaedro > div > div > .properties-grid > .property-box{
    border: solid 5px #4a54d9;
}

#Icosaedro > div > div > .row > .properties-grid > .property-box{
    background: linear-gradient(
        45deg,
        #4a54d9,
        #50a4e8,
        #47cef0
    );
    text-shadow: 1px 1px 15px rgba(0, 0, 0, 0.568);
}

@keyframes efecto_elemento {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}
/*----------*/

.solid-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-bottom: 2rem;
    transition: all ease-in-out .3s;
    position: relative;
}

/* Gradiente oculto debajo */
#recursos .solid-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 15px;
    background: linear-gradient(45deg, black, var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: 0;
}

/* Al hacer hover aparece el gradiente */
#recursos .solid-card:hover::before {
    opacity: 1;
}

/* El contenido siempre encima del gradiente */
#recursos .solid-card .card-content {
    position: relative;
    z-index: 1;
}

#recursos .solid-card:hover {
    color: white;
    text-shadow: 2px 5px 5px rgba(0, 0, 0, 0.671);
    box-shadow: 0 0px 20px #000000a8;
}

#recursos .solid-card:hover i {
    color: white !important;
    text-shadow: none;
}

.Apartadados_card{
    cursor: pointer;
}
.Apartadados_card a{
    text-decoration: none;
    color: var(--primary-color);
}

.card-model-container {
    background: var(--light-bg);
    padding: 2rem;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-content {
    padding: 2rem;
}

.card-title {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Tablas */
.containerTable{
    margin-top: 30px;
    margin-bottom: 5px;
    text-align: center;
    width: 100%;
    overflow-x: auto;
}
.table{
    border: solid 1px black;
    width: max-content;
    max-width: 80%;
    margin: 0;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    box-shadow: 7px -5px 0px rgba(0, 0, 0, 0.1);
}
.etiqueta_table{
    text-align: center;
    font-style: italic;
    font-size: 10pt;
}

/* Timeline histórica */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline-item {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 3px 15px rgba(0,0,0,0.1);
    position: relative;
}

.timeline-date {
    background: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 1rem;
    font-weight: bold;
}

/* Galería de arte */
.art-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

.art-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.art-item:hover {
    transform: scale(1.05);
}

.art-image-container {
    background: var(--light-bg);
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.art-description {
    padding: 1.5rem;
}

/* Tabs personalizados */
.custom-tabs {
    border-bottom: 2px solid var(--light-bg);
    margin-bottom: 2rem;
}

.custom-tab {
    background: none;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    color: #666;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.custom-tab:hover {
    color: var(--secondary-color);
}

.custom-tab.active {
    color: var(--secondary-color);
    border-bottom: 3px solid var(--secondary-color);
}

/* Contenedor de modelo 3D/AR */
.btnDiv div:first-child{
    margin-left: auto;
}
.btnDiv div:first-child>.btn_model{
    border-radius: 20px 0 0 20px;
    border-right: 0;
}
.btnDiv div:last-child{
    margin-right: auto;
}
.btnDiv div:last-child>.btn_model{
    border-radius: 0 20px 20px 0;
    border-left: 0;
}
.btnDiv>div{
    padding: 0 5px 0 5px;
    width: max-content;
}

.btnDiv .btn_model{
    border: solid 2px gray;
    padding: 15px 25px 15px 25px;
    background-color: #00000000;
    transition: all ease 0.7s;
}

.btnDiv .btn_model:hover{
    border-color: gray;
    background-color: gray;
    color: white;
}

.btnDiv .btn_active{
    border-color: black;
    background-color: black;
    color: white;
}

.interactive-model {
    background: #00000000;
    border-radius: 15px;
    padding: 2rem;
    min-height: 500px;
    max-width: 100%;
    position: relative;
    /* IMPORTANTE: No usar display: flex aquí */
}

/* CRÍTICO: Dar dimensiones explícitas al model-viewer */
model-viewer,
.model-3d {
    width: 100% !important;
    height: 450px !important;
    display: block !important;
    background: transparent;
    border-radius: 10px;
}

/* Si el contenedor padre tiene display: flex, forzar tamaño */
.col-lg-6 model-viewer {
    min-height: 450px;
}

.ar-button {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    bottom: 24px;
    right: 24px;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
    transition: all 0.3s ease;
    z-index: 10;
}

.ar-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.6);
}

.control-btn {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
}

.control-btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* Propiedades matemáticas */
.properties-grid {
    display:flex;
    flex-wrap: wrap;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
    justify-content: center;
}

.properties-grid>.property-box{
    color: white;
    border: none;
}

.property-box {
        color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 1rem 2rem 1rem 2rem;
    border-radius: 15px;
    text-align: center;

    flex: 1 1 100px;
    min-width: 100px;
}

.property-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.property-value {
    font-size: 2rem;
    font-weight: bold;
}

/* QR Code para AR */
.qr-container {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
    margin: 2rem 0;
}

.qr-placeholder {
    background: var(--light-bg);
    min-height: 200px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-content {
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-mobile-fullwidth {
        max-width: 100%;
        padding-left: 0;
        padding-right: 0;
    }

    .hero-mobile-fullwidth .hero-content {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .hero-mobile-fullwidth .interactive-model {
        width: 100%;
        padding: 0;
    }

    .hero-mobile-fullwidth model-viewer,
    .hero-mobile-fullwidth .model-3d {
        width: 100% !important;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .art-gallery {
        grid-template-columns: 1fr;
    }
}

/* Utilidades */
.text-placeholder {
    background: var(--light-bg);
    height: 1rem;
    border-radius: 5px;
    margin: 0.5rem 0;
}

.badge-custom {
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Modelos de la seccion Arte
/* GRID como la imagen: 4 columnas, baja a 2 y 1 responsive */
.galeria-3d{
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 28px;
  align-items: start;
}

@media (max-width: 1100px){
  .galeria-3d{ grid-template-columns: repeat(2, minmax(240px, 1fr)); }
}
@media (max-width: 600px){
  .galeria-3d{ grid-template-columns: 1fr; }
}

/* Tarjeta */
.card-3d{
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  height: 600px;
}

/* Rectángulo grande (zona del model-viewer) */
.mv-stage{
  position: relative;
  width: 100%;
  height: auto;
  background: #ffffff; /* Antes: #a8b0b6 */
  border-radius: 20px;
  overflow: hidden;
}

.mv-stage-image{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translateY(100%);
  transition: transform 0.45s ease;
  z-index: 3;
  pointer-events: none;
}

.mv-stage-image.is-visible{
  transform: translateY(0);
}

/* model-viewer ocupa todo el rectángulo */
.mv{
  width: 100%;
  height: 100%;
  display: block;
}

/* Overlay centrado “OBRA----” */
.mv-overlay{
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #2b2b2b;
  opacity: 0.9;
  pointer-events: none;
}

.mv-icon{
  width: 38px;
  height: 38px; 
  fill: #aaa19a;
  opacity: 0.9;
  display: none;
}

.mv-label{
  font-size: 14px;
  letter-spacing: 0.5px;
  display: none;
}

/* Texto debajo */
.card-3d-body{
    padding: 18px;
    border: 1px solid rgba(128, 128, 128, 0.336);
    border-radius: 20px;
    min-height: 150px;
    overflow: hidden;
    transition: all 1.5s ease;
}

.card-3d-body .desc{
    transition: all 1s ease;
}

.card-3d-body:hover{
    height: min-content;
    padding-bottom: 20px;
}

.artist{
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 8px;
}

.tag-row{
    text-align: center;
    margin-bottom: 10px;
}

.tag-pill{
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: #e74c3c;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.desc{
  font-size: 14px;
  color: #2f2f2f;
}

/*--imagenes arte */

.artist-hero{
  display: grid;
  grid-template-columns: 1fr 360px; /* texto + columna de imagen */
  gap: 28px;
  align-items: start;              /* pega arriba */
  margin-bottom: 40px;             /* separa de la galería 3D */
}

.artist-hero__media{
  margin: 0;
  justify-self: center;               /* la empuja a la derecha */
}

.artist-hero__img{
  display: block;
  width: 100%;
  max-width: 360px;                /* límite real del ancho */
  height: 300px;                    /* conserva proporción */
  border-radius: 12px;
  object-fit: cover;               /* útil si luego fijas altura */
}

/* Si querés que no sea demasiado alta (opcional) */
.artist-hero__img{
  max-height: 460px;
}