/*
═══════════════════════════════════════════════════════════════════════════════
🎯 ACTIVIDADES MODERNIZADAS - SPMYCM
═══════════════════════════════════════════════════════════════════════════════
Fecha: Noviembre 2025
Descripción: Estilos modernos para las secciones de actividades (congresos, etc.)
Compatible con: estructura-modern.css y nav-modern.css
*/

/* ============================================================================
   📋 CONTENEDOR PRINCIPAL DE LISTADO
============================================================================ */

.listado-modern {
    clear: both;
    padding: var(--spacing-xl) 0;
    background: white;
    min-height: 400px;
}

.listado-modern .titulo-seccion {
    text-align: left;
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-md);
}

.listado-modern .titulo-seccion h3 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary) !important;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
    text-shadow: none;
    display: inline-block;
    position: relative;
    padding-bottom: 0.5rem;
}

.listado-modern .titulo-seccion h3::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

.listado-modern .titulo-seccion .subtitulo {
    font-size: 1.1rem;
    color: var(--gray-600);
    font-weight: 400;
    max-width: 600px;
    margin: 0;
    line-height: 1.6;
    text-align: left;
}

/* Clase específica para bordes redondeados de imágenes */
.articulo-card-modern .imagen-container img.redonda {
    border-radius: 8px !important;
    -webkit-border-radius: 8px !important;
    -moz-border-radius: 8px !important;
}

/* ============================================================================
   🔍 FORMULARIO DE BÚSQUEDA MODERNO
============================================================================ */

.busqueda-modern {
    background: white;
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--gray-200);
}

.busqueda-modern .form-busqueda {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: center;
}

.busqueda-modern label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-700);
    margin: 0 !important;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.busqueda-modern label .icono {
    font-size: 40px;
    color: var(--color-primary);
}

.busqueda-modern input[type='text'] {
    flex: 1;
    min-width: 280px;
    max-width: 400px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    background-color: white;
    transition: all 0.3s ease;
    margin: 0;
}

.busqueda-modern input[type='text']:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
    background-color: #fefefe;
}

.busqueda-modern input[type='submit'] {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
    margin: 0;
}

.busqueda-modern input[type='submit']:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.3);
}

/* ============================================================================
   📄 GRID DE ARTÍCULOS MODERNO
============================================================================ */

.articulos-grid-modern {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.articulo-card-modern {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    display: block;
    text-decoration: none;
    color: inherit;
}

.articulo-card-modern:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    color: inherit;
}

.articulo-card-modern .card-content {
    display: flex;
    flex-direction: row;
    min-height: 180px;
}

.articulo-card-modern .imagen-container {
    flex: 0 0 280px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.articulo-card-modern .imagen-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transition: transform 0.3s ease;
    padding: var(--spacing-sm);
    border-radius: 8px !important;
    overflow: hidden;
}

.articulo-card-modern:hover .imagen-container img {
    transform: scale(1.05);
}

.articulo-card-modern .imagen-placeholder {
    width: 80px;
    height: 80px;
    background: var(--gray-300);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    font-size: 2rem;
}

.articulo-card-modern .info-container {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.articulo-card-modern .titulo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.articulo-card-modern .fecha-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    color: var(--gray-600);
    font-size: 0.95rem;
    font-weight: 500;
}

.articulo-card-modern .fecha-info .icono {
    color: var(--color-primary);
}

.articulo-card-modern .descripcion {
    color: var(--gray-700);
    font-size: 1rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.articulo-card-modern .cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: auto;
    transition: all 0.3s ease;
}

.articulo-card-modern:hover .cta {
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* ============================================================================
   📱 RESPONSIVE DESIGN
============================================================================ */

@media (max-width: 768px) {
    .listado-modern .titulo-seccion h3 {
        font-size: 1.8rem;
    }
    
    .busqueda-modern .form-busqueda {
        flex-direction: column;
        text-align: center;
    }
    
    .busqueda-modern input[type='text'] {
        min-width: 100%;
        max-width: 100%;
    }
    
    .busqueda-modern input[type='submit'] {
        width: 100%;
        max-width: 200px;
    }
    
    .articulo-card-modern .card-content {
        flex-direction: column;
    }
    
    .articulo-card-modern .imagen-container {
        flex: 0 0 200px;
        width: 100%;
    }
    
    .articulo-card-modern .info-container {
        padding: var(--spacing-md);
    }
    
    .articulo-card-modern .titulo {
        font-size: 1.2rem;
    }
}

/* ============================================================================
   🎨 VARIANTES DE ESTADO
============================================================================ */

.articulos-grid-modern .articulo-card-modern.destacado {
    background: linear-gradient(135deg, #fefeff 0%, #f0f9ff 100%);
    border: none !important;
}

.articulo-card-modern.destacado::before {
    content: "Destacado";
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
}

.articulo-card-modern.proximo {
    border-left: 4px solid var(--color-warning);
}

.articulo-card-modern.finalizado {
    opacity: 0.8;
}

.articulo-card-modern.finalizado .titulo {
    color: var(--gray-600);
}

/* ============================================================================
   💫 ANIMACIONES
============================================================================ */

.articulos-grid-modern .articulo-card-modern {
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
    transform: translateY(30px);
}

.articulos-grid-modern .articulo-card-modern:nth-child(1) { animation-delay: 0.1s; }
.articulos-grid-modern .articulo-card-modern:nth-child(2) { animation-delay: 0.2s; }
.articulos-grid-modern .articulo-card-modern:nth-child(3) { animation-delay: 0.3s; }
.articulos-grid-modern .articulo-card-modern:nth-child(4) { animation-delay: 0.4s; }
.articulos-grid-modern .articulo-card-modern:nth-child(5) { animation-delay: 0.5s; }

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

/* ============================================================================
   📄 ESTADO VACÍO
============================================================================ */

.listado-vacio-modern {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: white;
    border-radius: 16px;
    margin: var(--spacing-xl) 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.listado-vacio-modern .icono {
    font-size: 4rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
}

.listado-vacio-modern h4 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.listado-vacio-modern p {
    color: var(--gray-500);
    font-size: 1rem;
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ============================================================================
   🔧 COMPATIBILIDAD CON ESTILOS ANTIGUOS
============================================================================ */

/* Sobrescribir estilos antiguos cuando se usa la clase moderna */
.listado-modern .listado-articulos a {
    color: inherit;
    padding-bottom: 0;
    margin-bottom: 0;
    border-bottom: none;
    min-width: auto;
}

.listado-modern .listado-articulos section {
    min-width: auto;
}

.listado-modern .listado-articulos h4 {
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
}

.listado-modern .listado-articulos p {
    font-size: inherit;
}