/**
 * ==========================================================================
 * SISTEMA DE TARJETAS - LEGADO.ART
 * ==========================================================================
 *
 * Dos tipos de tarjetas:
 * 1. artwork-card: Para obras de arte (imagen protagonista)
 * 2. text-card: Para libros y articulos (contenido textual)
 */

/* ==========================================================================
   VARIABLES LOCALES
   ========================================================================== */
:root {
    --card-radius: 4px;
    --card-transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --card-hover-lift: -12px;
}

/* ==========================================================================
   1. ARTWORK CARD - TARJETA DE OBRA DE ARTE
   ==========================================================================
   Diseño tipo museo: imagen protagonista, minimalista, elegante
   ========================================================================== */

.artwork-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--verde-profundo);
    border-radius: var(--card-radius);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--card-transition), box-shadow var(--card-transition);
}

/* Borde dorado sutil */
.artwork-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(176, 140, 62, 0.15);
    border-radius: var(--card-radius);
    pointer-events: none;
    transition: border-color var(--card-transition);
    z-index: 10;
}

.artwork-card:hover {
    transform: translateY(var(--card-hover-lift));
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 60px rgba(176, 140, 62, 0.1);
}

.artwork-card:hover::before {
    border-color: rgba(176, 140, 62, 0.4);
}

/* ---------------------------------------------
   Contenedor de imagen - PROTAGONISTA
   --------------------------------------------- */
.artwork-card__image {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
}

/* La imagen en si */
.artwork-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.artwork-card:hover .artwork-card__image img {
    transform: scale(1.05);
}

/* Overlay gradiente inferior para legibilidad */
.artwork-card__image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(
        to top,
        rgba(9, 26, 20, 0.95) 0%,
        rgba(9, 26, 20, 0.7) 40%,
        transparent 100%
    );
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--card-transition);
}

.artwork-card:hover .artwork-card__image::after {
    opacity: 1;
}

/* ---------------------------------------------
   Badge del museo (esquina superior)
   --------------------------------------------- */
.artwork-card__source {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    background: rgba(9, 26, 20, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(176, 140, 62, 0.3);
    border-radius: 2px;
    font-family: var(--font-family-sans);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--cobre-electrico);
    z-index: 5;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.artwork-card:hover .artwork-card__source {
    opacity: 1;
    transform: translateY(0);
}

/* ---------------------------------------------
   Informacion - Overlay inferior
   --------------------------------------------- */
.artwork-card__info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 16px 16px;
    z-index: 5;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease 0.1s, transform 0.3s ease 0.1s;
}

.artwork-card:hover .artwork-card__info {
    opacity: 1;
    transform: translateY(0);
}

.artwork-card__title {
    font-family: var(--font-family-display);
    font-size: 1rem;
    font-weight: 500;
    color: var(--marfil);
    line-height: 1.3;
    margin: 0 0 6px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.artwork-card__artist {
    font-family: var(--font-family-serif);
    font-size: 0.85rem;
    color: var(--cobre-electrico);
    font-style: italic;
    margin: 0 0 4px 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.artwork-card__date {
    font-family: var(--font-family-sans);
    font-size: 0.75rem;
    color: rgba(253, 251, 247, 0.5);
    letter-spacing: 0.03em;
    margin: 0;
}

/* ---------------------------------------------
   Footer permanente (debajo de imagen)
   --------------------------------------------- */
.artwork-card__footer {
    padding: 12px 16px;
    background: linear-gradient(180deg, var(--verde-profundo) 0%, rgba(9, 26, 20, 0.98) 100%);
    border-top: 1px solid rgba(176, 140, 62, 0.1);
}

.artwork-card__footer-title {
    font-family: var(--font-family-display);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--marfil);
    line-height: 1.3;
    margin: 0 0 4px 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--card-transition);
}

.artwork-card:hover .artwork-card__footer-title {
    color: var(--cobre-electrico);
}

.artwork-card__footer-artist {
    font-family: var(--font-family-serif);
    font-size: 0.8rem;
    color: rgba(253, 251, 247, 0.6);
    font-style: italic;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------------------------------------------
   Variante: Sin footer (solo overlay)
   --------------------------------------------- */
.artwork-card--overlay-only .artwork-card__footer {
    display: none;
}

.artwork-card--overlay-only .artwork-card__info {
    opacity: 0;
}

.artwork-card--overlay-only:hover .artwork-card__info {
    opacity: 1;
}

/* ---------------------------------------------
   Variante: Con footer siempre visible
   --------------------------------------------- */
.artwork-card--with-footer .artwork-card__info {
    display: none;
}

.artwork-card--with-footer .artwork-card__image::after {
    display: none;
}

/* ---------------------------------------------
   Indicador de favorito
   --------------------------------------------- */
.artwork-card__favorite {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(9, 26, 20, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(176, 140, 62, 0.3);
    border-radius: 50%;
    color: var(--cobre);
    z-index: 5;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
    cursor: pointer;
}

.artwork-card__favorite svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    transition: fill 0.2s ease;
}

.artwork-card:hover .artwork-card__favorite {
    opacity: 1;
    transform: scale(1);
}

.artwork-card__favorite:hover {
    background: var(--cobre);
    color: var(--verde-profundo);
}

.artwork-card__favorite--active svg {
    fill: var(--cobre);
}

.artwork-card__favorite--active:hover svg {
    fill: var(--verde-profundo);
}

/* ==========================================================================
   2. TEXT CARD - TARJETA PARA LIBROS Y ARTICULOS
   ==========================================================================
   Diseño orientado al contenido textual
   ========================================================================== */

.text-card {
    position: relative;
    display: flex;
    flex-direction: row;
    background: linear-gradient(135deg, var(--verde-profundo) 0%, rgba(15, 42, 34, 0.95) 100%);
    border: 1px solid rgba(176, 140, 62, 0.15);
    border-radius: var(--card-radius);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--card-transition),
                box-shadow var(--card-transition),
                border-color var(--card-transition);
    min-height: 160px;
}

.text-card:hover {
    transform: translateY(-6px);
    border-color: rgba(176, 140, 62, 0.4);
    box-shadow:
        0 16px 32px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(176, 140, 62, 0.08);
}

/* ---------------------------------------------
   Thumbnail lateral
   --------------------------------------------- */
.text-card__thumb {
    position: relative;
    flex-shrink: 0;
    width: 120px;
    background: linear-gradient(180deg, #0f2a22 0%, #091a14 100%);
    overflow: hidden;
}

.text-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.text-card:hover .text-card__thumb img {
    transform: scale(1.08);
}

/* Icono de tipo superpuesto */
.text-card__type-icon {
    position: absolute;
    bottom: 8px;
    left: 8px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(9, 26, 20, 0.9);
    border: 1px solid rgba(176, 140, 62, 0.4);
    border-radius: 4px;
    color: var(--cobre);
}

.text-card__type-icon svg {
    width: 14px;
    height: 14px;
}

/* ---------------------------------------------
   Contenido textual
   --------------------------------------------- */
.text-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 16px 20px;
    min-width: 0;
}

/* Badge de tipo */
.text-card__badge {
    align-self: flex-start;
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--cobre);
    border-radius: 2px;
    font-family: var(--font-family-sans);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--cobre);
    margin-bottom: 10px;
    transition: background var(--card-transition), color var(--card-transition);
}

.text-card:hover .text-card__badge {
    background: var(--cobre);
    color: var(--verde-profundo);
}

/* Variantes de badge */
.text-card__badge--libro {
    border-color: #4CAF50;
    color: #4CAF50;
}

.text-card:hover .text-card__badge--libro {
    background: #4CAF50;
    color: white;
}

.text-card__badge--articulo {
    border-color: var(--cobre);
    color: var(--cobre);
}

.text-card:hover .text-card__badge--articulo {
    background: var(--cobre);
    color: var(--verde-profundo);
}

.text-card__badge--bibliografia {
    border-color: #E67E22;
    color: #E67E22;
}

.text-card:hover .text-card__badge--bibliografia {
    background: #E67E22;
    color: white;
}

/* Titulo */
.text-card__title {
    font-family: var(--font-family-display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--marfil);
    line-height: 1.35;
    margin: 0 0 8px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--card-transition);
}

.text-card:hover .text-card__title {
    color: var(--cobre-electrico);
}

/* Autor/Fuente */
.text-card__author {
    font-family: var(--font-family-serif);
    font-size: 0.85rem;
    color: rgba(253, 251, 247, 0.7);
    margin: 0 0 8px 0;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Descripcion */
.text-card__description {
    font-family: var(--font-family-sans);
    font-size: 0.8rem;
    color: rgba(253, 251, 247, 0.5);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* Meta info (fecha, paginas, etc) */
.text-card__meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid rgba(176, 140, 62, 0.1);
}

.text-card__meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-family-sans);
    font-size: 0.75rem;
    color: rgba(253, 251, 247, 0.4);
}

.text-card__meta-item svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

/* Boton de descarga */
.text-card__download {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(76, 175, 80, 0.9);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
    z-index: 5;
}

.text-card__download svg {
    width: 18px;
    height: 18px;
}

.text-card:hover .text-card__download {
    opacity: 1;
    transform: scale(1);
}

.text-card__download:hover {
    background: #43A047;
    transform: scale(1.1);
}

/* ==========================================================================
   3. GRIDS DE TARJETAS
   ========================================================================== */

/* Grid para obras de arte */
.artwork-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 24px;
}

/* Grid para libros/articulos */
.text-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 20px;
}

/* Grid mixto (cuando hay ambos tipos) */
.mixed-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

/* ==========================================================================
   4. RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
    /* Artwork cards en movil */
    .artwork-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 16px;
    }

    .artwork-card__footer {
        padding: 10px 12px;
    }

    .artwork-card__footer-title {
        font-size: 0.85rem;
    }

    .artwork-card__footer-artist {
        font-size: 0.75rem;
    }

    .artwork-card__source {
        padding: 4px 8px;
        font-size: 0.6rem;
    }

    /* Text cards en movil - layout vertical */
    .text-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .text-card {
        flex-direction: column;
        min-height: auto;
    }

    .text-card__thumb {
        width: 100%;
        height: 140px;
    }

    .text-card__content {
        padding: 14px 16px;
    }

    .text-card__title {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .artwork-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .artwork-card__footer {
        padding: 8px 10px;
    }

    .artwork-card__footer-title {
        font-size: 0.8rem;
    }

    .artwork-card__footer-artist {
        font-size: 0.7rem;
    }

    /* Hover effects disabled on touch */
    .artwork-card__source,
    .artwork-card__favorite {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ==========================================================================
   5. ESTADOS Y ANIMACIONES
   ========================================================================== */

/* Skeleton loading para artwork */
.artwork-card--skeleton .artwork-card__image {
    background: linear-gradient(
        90deg,
        rgba(15, 42, 34, 0.8) 0%,
        rgba(25, 52, 44, 0.8) 50%,
        rgba(15, 42, 34, 0.8) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.artwork-card--skeleton .artwork-card__footer-title,
.artwork-card--skeleton .artwork-card__footer-artist {
    background: rgba(176, 140, 62, 0.1);
    border-radius: 2px;
    color: transparent;
}

/* Skeleton loading para text-card */
.text-card--skeleton .text-card__thumb {
    background: linear-gradient(
        90deg,
        rgba(15, 42, 34, 0.8) 0%,
        rgba(25, 52, 44, 0.8) 50%,
        rgba(15, 42, 34, 0.8) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
}

.text-card--skeleton .text-card__title,
.text-card--skeleton .text-card__author,
.text-card--skeleton .text-card__description {
    background: rgba(176, 140, 62, 0.1);
    border-radius: 2px;
    color: transparent;
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Animacion de entrada */
.artwork-card,
.text-card {
    animation: card-fade-in 0.4s ease backwards;
}

@keyframes card-fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger para grids */
.artwork-grid .artwork-card:nth-child(1) { animation-delay: 0.05s; }
.artwork-grid .artwork-card:nth-child(2) { animation-delay: 0.1s; }
.artwork-grid .artwork-card:nth-child(3) { animation-delay: 0.15s; }
.artwork-grid .artwork-card:nth-child(4) { animation-delay: 0.2s; }
.artwork-grid .artwork-card:nth-child(5) { animation-delay: 0.25s; }
.artwork-grid .artwork-card:nth-child(6) { animation-delay: 0.3s; }
.artwork-grid .artwork-card:nth-child(7) { animation-delay: 0.35s; }
.artwork-grid .artwork-card:nth-child(8) { animation-delay: 0.4s; }

.text-grid .text-card:nth-child(1) { animation-delay: 0.05s; }
.text-grid .text-card:nth-child(2) { animation-delay: 0.1s; }
.text-grid .text-card:nth-child(3) { animation-delay: 0.15s; }
.text-grid .text-card:nth-child(4) { animation-delay: 0.2s; }

/* ==========================================================================
   6. DARK MODE (si se usa)
   ========================================================================== */

body.dark-mode .artwork-card {
    background: #0d1a15;
}

body.dark-mode .artwork-card::before {
    border-color: rgba(176, 140, 62, 0.2);
}

body.dark-mode .text-card {
    background: linear-gradient(135deg, #0d1a15 0%, #0a1410 100%);
    border-color: rgba(176, 140, 62, 0.2);
}