/* Card */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

/* Títulos y acento */
.color-texto {
    color: var(--secondary-color);
    font-weight: 600;
    letter-spacing: -0.02em;
}

h4.color-texto {
    position: relative;
    padding-bottom: 15px;
}

h4.color-texto::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* Buscador */
.search-filter-section {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
}

.search-input {
    border-radius: 25px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Grid de materiales */
.material-card {
    height: 100%;
    transition: var(--transition);
}

.material-card:hover {
    transform: translateY(-5px);
}

.material-image {
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.material-card:hover .material-image {
    transform: scale(1.05);
}

.material-date {
    font-size: 0.85rem;
    color: #6c757d;
}

/* ==============================
   Paginación (píldoras mejoradas)
   ============================== */
.pagination {
    justify-content: center;
    gap: .35rem;                /* espacio uniforme */
    padding-bottom: 3rem;
}

.page-item {
    margin: 0;                  /* reset */
}

.page-link {
    display: flex;              /* centra contenido */
    align-items: center;
    justify-content: center;
    height: 2.25rem;
    min-width: 2.25rem;
    padding: 0 .6rem;
    line-height: 1;
    border: none;
    border-radius: .85rem;
    background: #fff;
    color: var(--secondary-color);
    box-shadow: var(--card-shadow);
    transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, color .15s ease;
}

.page-link i {
    transform: none;
    line-height: 1;
    font-size: 1rem;
}

.page-link:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(220,53,69,.28);
}

.page-link:focus {
    box-shadow: 0 0 0 .2rem rgba(220,53,69,.2);
}

.page-item.active .page-link {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 8px 18px rgba(220,53,69,.35);
}

.page-item.disabled .page-link {
    background: #eef2f6;
    color: #9aa6b2;
    box-shadow: none;
    cursor: not-allowed;
}

/* Quitar márgenes extra en paginación dentro de la sección */
.section-bg-1 .pagination {
    margin-top: 0 !important;
    margin-bottom: 0 !important;
}

/* Compacto en móviles */
@media (max-width: 576px) {
    .page-link {
        height: 2rem;
        min-width: 2rem;
        border-radius: .75rem;
        padding: 0 .5rem;
    }
}

/* Espacios laterales de la sección */
.px-espacio-costados {
    padding-left: 8.4rem;
    padding-right: 8.4rem;
}

@media (max-width: 991.98px) {
    .px-espacio-costados {
        padding-left: 6.4rem;
        padding-right: 6.4rem;
    }
}

@media (max-width: 575.98px) {
    .px-espacio-costados {
        padding-left: 4.3rem;
        padding-right: 4.3rem;
    }
}

/* Fondo de sección usado */
.section-bg-1 {
    background: linear-gradient(135deg, #edf0f5, #e3e8f0);
}