/* ==========================================================================
   SECCIÓN DE NOTICIAS Y EVENTOS - IESTP Carlos Salazar Romero
   Convención: prefijo csr- | Metodología BEM
   NOTA: los media queries de este componente están en responsive.css
   ========================================================================== */

/* Radios adicionales para tarjetas redondeadas */
:root {
    --csr-radius-xl: 20px;
    --csr-radius-2xl: 24px;
}

/* ==========================================================================
   1. SECCIÓN Y ENCABEZADO
   ========================================================================== */

/* .csr-news: contenedor de la sección */
.csr-news {
    padding: 5rem 0;
    background-color: var(--csr-color-base);
}

.csr-news__header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2.5rem;
}

/* Etiqueta tipo píldora */
.csr-news__tag {
    display: inline-block;
    background-color: var(--csr-color-primary-light);
    color: var(--csr-color-primary);
    padding: 0.4rem 1.2rem;
    border-radius: var(--csr-radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.csr-news__title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--csr-color-primary-dark);
    font-weight: 700;
    margin-bottom: 0.8rem;
}

/* Palabra destacada en rojo institucional */
.csr-news__highlight {
    color: var(--csr-color-secondary);
}

.csr-news__intro {
    font-size: 1.05rem;
    color: var(--csr-color-gray);
    line-height: 1.7;
}

/* ==========================================================================
   2. FILTROS POR CATEGORÍA (botones redondeados)
   ========================================================================== */
.csr-news__filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
}

.csr-news__filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--csr-color-white);
    border: 2px solid var(--csr-color-lighter);
    color: var(--csr-color-dark-soft);
    padding: 0.55rem 1.3rem;
    border-radius: var(--csr-radius-xl);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.csr-news__filter-btn:hover {
    border-color: var(--csr-color-primary);
    color: var(--csr-color-primary);
    transform: translateY(-2px);
}

/* Estado activo */
.csr-news__filter-btn--active {
    background: linear-gradient(135deg, var(--csr-color-primary), var(--csr-color-primary-dark));
    border-color: transparent;
    color: var(--csr-color-white);
    box-shadow: 0 6px 20px rgba(0, 88, 171, 0.3);
}

/* ==========================================================================
   3. GRID DE NOTICIAS (3 columnas en escritorio)
   ========================================================================== */
.csr-news__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.8rem;
}

/* Formulario que envuelve cada card (envía POST al hacer clic) */
.csr-news__card-form {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* ==========================================================================
   4. CARD DE NOTICIA
   ========================================================================== */

/* .csr-news__card: botón-card completo */
.csr-news__card {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    background-color: var(--csr-color-white);
    border: none;
    border-radius: var(--csr-radius-2xl);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    text-align: left;
    font-family: var(--csr-font-body);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: csr-news-in 0.6s ease;
}

.csr-news__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.15);
}

.csr-news__card:focus-visible {
    outline: 3px solid var(--csr-color-secondary);
    outline-offset: 3px;
}

@keyframes csr-news-in {
    from { opacity: 0; transform: translateY(25px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Imagen ---------- */
.csr-news__card-media {
    position: relative;
    height: 200px;
    overflow: hidden;
    background-color: var(--csr-color-lighter);
}

.csr-news__card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.csr-news__card:hover .csr-news__card-media img {
    transform: scale(1.08);
}

/* ---------- Cuerpo ---------- */
.csr-news__card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.4rem;
}

/* Fila categoría + fecha */
.csr-news__card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 0.9rem;
}

/* Categoría: píldora amarilla (terciario) */
.csr-news__card-category {
    background-color: var(--csr-color-tertiary);
    color: var(--csr-color-dark);
    padding: 0.25rem 0.9rem;
    border-radius: var(--csr-radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Fecha en gris con icono */
.csr-news__card-date {
    color: var(--csr-color-gray);
    font-size: 0.78rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.csr-news__card-date i {
    color: var(--csr-color-secondary);
}

/* Título (máx. 2 líneas) */
.csr-news__card-title {
    font-family: var(--csr-font-heading);
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--csr-color-primary-dark);
    line-height: 1.35;
    margin-bottom: 0.7rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Resumen (máx. 3 líneas) */
.csr-news__card-summary {
    color: var(--csr-color-gray);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.1rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* "Leer más" con flecha animada */
.csr-news__card-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--csr-color-primary);
    font-weight: 600;
    font-size: 0.88rem;
}

.csr-news__card-more i {
    transition: transform 0.3s ease;
}

.csr-news__card:hover .csr-news__card-more {
    color: var(--csr-color-secondary);
}

.csr-news__card:hover .csr-news__card-more i {
    transform: translateX(5px);
}

/* ==========================================================================
   5. MENSAJE DE ERROR (status != 200)
   ========================================================================== */
.csr-news__error {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--csr-color-white);
    border-left: 5px solid var(--csr-color-secondary);
    border-radius: var(--csr-radius-lg);
    box-shadow: var(--csr-shadow-sm);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.csr-news__error i {
    font-size: 1.6rem;
    color: var(--csr-color-secondary);
    flex-shrink: 0;
}

.csr-news__error p {
    color: var(--csr-color-secondary-dark);
    font-weight: 600;
    margin: 0;
}