/* ============================================================
   noticias.css — Junta Distrital de Villa Cutupú
   Diseño editorial de revista · VERSIÓN 3.0 PREMIUM (COMPLETA)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,700;0,800;0,900;1,700;1,800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ===================================================
   VARIABLES
   =================================================== */
:root {
    --green:          #7E8F76;
    --green-dark:     #5A684F;
    --green-light:    #A9B7A2;
    --green-xlight:   #EFF3EE;
    --blue-sky:       #2B6A9E;
    --blue-sky-light: #EBF4FB;
    --beige:          #C4BCAF;
    --beige-light:    #E8E3DC;
    --text:           #1C1C1C;
    --text-soft:      #3D3D3D;
    --text-light:     #6B6B6B;
    --border:         #E8E8E8;
    --white:          #FFFFFF;
    --gray-50:        #FAFAFA;
    --gray-100:       #F5F5F5;
    --gray-200:       #EBEBEB;
    --gray-300:       #E0E0E0;
    --gray-400:       #A3A3A3;
    --gray-500:       #737373;
    --gray-600:       #525252;
    --gray-700:       #404040;
    --gray-800:       #262626;
    --gray-900:       #171717;

    --shadow-xs:  0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm:  0 2px 8px rgba(0,0,0,0.06);
    --shadow-md:  0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg:  0 12px 40px rgba(0,0,0,0.12);
    --shadow-xl:  0 24px 60px rgba(0,0,0,0.16);

    --radius-card:  12px;
    --radius-block: 18px;
    --radius-full:  999px;

    --transition-fast: 0.18s ease;
    --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.65s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2rem;
    --space-5: 3rem;
    --space-6: 4rem;
    --space-7: 6rem;

    --ink:         #0F1A0B;
    --paper:       #FDFCF8;
    --accent-gold: #C09B52;
    --accent-rust: #B85C38;
    --col-gap:     clamp(1.5rem, 3vw, 2.5rem);
    --section-v:   clamp(4rem, 8vw, 7rem);
    
    /* Alturas dinámicas para sticky */
    --header-height-desktop: 85px;
    --header-height-mobile: 65px;
}

/* ===================================================
   RESET & BASE
   =================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--paper);
    color: var(--text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Entrada de página: fade + shift desde abajo */
@keyframes pageReveal {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

body { animation: pageReveal 0.6s ease forwards; }

img { display: block; max-width: 100%; height: auto; }

/* ===================================================
   CONTAINER
   =================================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5%;
    width: 100%;
}

/* ===================================================
   HEADER
   =================================================== */
.main-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height-desktop);
    background: rgba(253, 252, 248, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
    /* Entrada del header desde arriba */
    animation: headerDrop 0.5s 0.1s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}

@keyframes headerDrop {
    from { transform: translateY(-110%); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
}

.main-header.scrolled {
    background: rgba(253, 252, 248, 0.98);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 4px 24px rgba(0,0,0,0.07);
}

.main-header.header-hidden {
    transform: translateY(-100%);
}

.main-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 100%;
    padding: 0 2%;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}
.logo a:hover { opacity: 0.82; }

.header-logo {
    height: 55px;
    width: auto;
    object-fit: contain;
    /* Logo también aparece con ligero fade */
    animation: fadeIn 0.4s 0.3s ease both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.main-nav { margin-left: auto; }

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
}

/* Cada ítem de nav entra escalonado */
.main-nav li {
    animation: navSlideIn 0.4s ease both;
}
.main-nav li:nth-child(1) { animation-delay: 0.20s; }
.main-nav li:nth-child(2) { animation-delay: 0.25s; }
.main-nav li:nth-child(3) { animation-delay: 0.30s; }
.main-nav li:nth-child(4) { animation-delay: 0.35s; }
.main-nav li:nth-child(5) { animation-delay: 0.40s; }
.main-nav li:nth-child(6) { animation-delay: 0.45s; }
.main-nav li:nth-child(7) { animation-delay: 0.50s; }
.main-nav li:nth-child(8) { animation-delay: 0.55s; }

@keyframes navSlideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.main-nav a {
    color: var(--text-soft);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.5rem 0.85rem;
    transition: color var(--transition-fast);
    white-space: nowrap;
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--green-dark);
    font-weight: 600;
}

/* Línea inferior animada */
.main-nav a:not(.btn-login):not(.btn-registro):not(.btn-logout)::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green), var(--accent-gold));
    border-radius: 2px;
    transition: width var(--transition-base);
}

.main-nav a:not(.btn-login):not(.btn-registro):not(.btn-logout):hover::after,
.main-nav a.active::after { width: 75%; }

.main-nav .btn-login {
    background: transparent;
    color: var(--green-dark);
    border: none;
    margin-left: 0.5rem;
    font-weight: 600;
}
.main-nav .btn-login:hover { text-decoration: underline; }

.main-nav .btn-registro {
    background: var(--green-dark);
    color: white;
    padding: 0.45rem 1.2rem;
    font-weight: 600;
    border-radius: var(--radius-card);
    margin-left: 0.5rem;
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-spring), background var(--transition-fast), box-shadow var(--transition-fast);
}
.main-nav .btn-registro:hover {
    background: var(--green);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(90,104,79,0.35);
}

.main-nav .btn-logout {
    color: #c0392b;
    font-weight: 600;
    margin-left: 0.4rem;
}
.main-nav .btn-logout:hover { color: #922b21; text-decoration: underline; }

/* Botón menú hamburguesa (móvil) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text);
    margin: 5px 0;
    transition: var(--transition-base);
}

/* ===================================================
   PAGE HERO — EDITORIAL PREMIUM
   =================================================== */
.page-header {
    position: relative;
    overflow: hidden;
    background: var(--ink);
    padding: 0;
    min-height: clamp(280px, 40vw, 460px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: var(--header-height-desktop);
}

/* Capa de textura + gradiente */
.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(ellipse 80% 60% at 50% 110%, rgba(90,104,79,0.6) 0%, transparent 70%),
        radial-gradient(ellipse 40% 50% at 80% 20%, rgba(192,155,82,0.12) 0%, transparent 60%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    background-size: cover, cover, 400px;
    pointer-events: none;
    z-index: 0;
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    from { opacity: 0.9; }
    to   { opacity: 1; }
}

/* Línea lateral izquierda */
.page-header::after {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0;
    width: 5px;
    background: linear-gradient(to bottom, var(--green), var(--accent-gold), transparent);
    z-index: 1;
    animation: lineGrow 0.9s 0.4s cubic-bezier(0.4,0,0.2,1) both;
}

@keyframes lineGrow {
    from { transform: scaleY(0); transform-origin: top; }
    to   { transform: scaleY(1); transform-origin: top; }
}

.page-header-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: clamp(3rem, 6vw, 5.5rem) clamp(1.5rem, 5%, 3rem);
    max-width: 820px;
}

/* Eyebrow con punto pulsante */
.page-header-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--green-light);
    margin-bottom: 1.3rem;
    padding: 0.35rem 1.1rem;
    border: 1px solid rgba(169,183,162,0.35);
    border-radius: var(--radius-full);
    backdrop-filter: blur(6px);
    background: rgba(169,183,162,0.08);
    animation: eyebrowReveal 0.6s 0.5s ease both;
}

@keyframes eyebrowReveal {
    from { opacity: 0; transform: translateY(10px) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.page-header-eyebrow::before {
    content: '';
    display: inline-block;
    width: 7px; height: 7px;
    background: var(--green-light);
    border-radius: 50%;
    animation: pulse 2.4s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(169,183,162,0.5); }
    50%       { opacity: 0.45; transform: scale(0.6); box-shadow: 0 0 0 6px rgba(169,183,162,0); }
}

.page-header h1 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.4rem, 5.5vw, 4.2rem);
    font-weight: 900;
    color: white;
    line-height: 1.08;
    letter-spacing: -0.025em;
    margin-bottom: 1.2rem;
    animation: titleReveal 0.8s 0.65s cubic-bezier(0.4,0,0.2,1) both;
}

@keyframes titleReveal {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
}

.page-header h1 em {
    font-style: italic;
    color: var(--accent-gold);
}

.page-header p {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(0.95rem, 1.8vw, 1.12rem);
    color: rgba(255,255,255,0.65);
    font-weight: 300;
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.8;
    animation: subtitleReveal 0.7s 0.85s ease both;
}

@keyframes subtitleReveal {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Recorte curvo inferior */
.page-header-divider {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 64px;
    background: var(--paper);
    clip-path: ellipse(56% 100% at 50% 100%);
    z-index: 2;
}

/* ===================================================
   FILTRO CATEGORÍAS — STICKY AJUSTADO
   =================================================== */
.categorias-filtro {
    background: rgba(253, 252, 248, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: var(--header-height-desktop); /* ← CRÍTICO: altura dinámica */
    z-index: 49; /* Justo debajo del header (1000) */
    animation: fadeDown 0.5s 0.2s ease both;
}

@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.categorias-filtro .container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    justify-content: center;
}

.categoria-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.4rem 1.1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    background: var(--white);
    color: var(--text-light);
    border: 1px solid var(--border);
    cursor: pointer;
    transition:
        color var(--transition-fast),
        background var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-spring),
        box-shadow var(--transition-fast);
    box-shadow: var(--shadow-xs);
    position: relative;
    overflow: hidden;
}

/* Ripple de fondo al hacer hover */
.categoria-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--green-xlight);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    z-index: 0;
    border-radius: inherit;
}
.categoria-btn:hover::before { transform: scaleX(1); }
.categoria-btn > * { position: relative; z-index: 1; }

.categoria-btn i { font-size: 0.8rem; }

.categoria-btn:hover {
    border-color: rgba(90,104,79,0.3);
    color: var(--green-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(90,104,79,0.14);
}

.categoria-btn.active {
    background: var(--green-dark);
    border-color: var(--green-dark);
    color: white;
    box-shadow: 0 6px 20px rgba(90,104,79,0.32);
    transform: translateY(-2px);
}
.categoria-btn.active::before { display: none; }

/* ===================================================
   NOTICIAS GRID — 3 COLUMNAS
   =================================================== */
.noticias-grid {
    padding: clamp(3rem, 5vw, 5rem) 5%;
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--col-gap);
    align-items: start;
}

/* ===================================================
   NOTICIA CARD
   =================================================== */
.noticia-card {
    background: var(--white);
    border-radius: var(--radius-block);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid var(--border);
    /* Animación de entrada — gestionada por Intersection Observer */
    opacity: 0;
    transform: translateY(30px);
    transition:
        opacity 0.6s ease,
        transform 0.6s ease,
        box-shadow var(--transition-base),
        border-color var(--transition-base);
    will-change: transform, opacity;
    box-shadow: var(--shadow-xs);
}

.noticia-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.noticia-card:hover {
    transform: translateY(-6px) scale(1.008);
    box-shadow: var(--shadow-xl);
    border-color: rgba(90,104,79,0.18);
}

/* Línea de acento en la parte superior (se despliega al hover) */
.noticia-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--green-dark), var(--green), var(--accent-gold));
    background-size: 200% 100%;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform var(--transition-slow);
    z-index: 3;
    border-radius: 3px 3px 0 0;
    animation: gradShift 4s linear infinite paused;
}

.noticia-card:hover::before {
    transform: scaleX(1);
    animation-play-state: running;
}

@keyframes gradShift {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* Delays escalonados para la aparición */
.noticia-card:nth-child(1)  { transition-delay: 0.05s; }
.noticia-card:nth-child(2)  { transition-delay: 0.13s; }
.noticia-card:nth-child(3)  { transition-delay: 0.21s; }
.noticia-card:nth-child(4)  { transition-delay: 0.05s; }
.noticia-card:nth-child(5)  { transition-delay: 0.13s; }
.noticia-card:nth-child(6)  { transition-delay: 0.21s; }
.noticia-card:nth-child(7)  { transition-delay: 0.05s; }
.noticia-card:nth-child(8)  { transition-delay: 0.13s; }
.noticia-card:nth-child(9)  { transition-delay: 0.21s; }
.noticia-card:nth-child(10) { transition-delay: 0.05s; }
.noticia-card:nth-child(11) { transition-delay: 0.13s; }
.noticia-card:nth-child(12) { transition-delay: 0.21s; }
.noticia-card:nth-child(13) { transition-delay: 0.05s; }
.noticia-card:nth-child(14) { transition-delay: 0.13s; }
.noticia-card:nth-child(15) { transition-delay: 0.21s; }
.noticia-card:nth-child(16) { transition-delay: 0.05s; }
.noticia-card:nth-child(17) { transition-delay: 0.13s; }
.noticia-card:nth-child(18) { transition-delay: 0.21s; }
.noticia-card:nth-child(19) { transition-delay: 0.05s; }
.noticia-card:nth-child(20) { transition-delay: 0.13s; }
.noticia-card:nth-child(21) { transition-delay: 0.21s; }
.noticia-card:nth-child(22) { transition-delay: 0.05s; }
.noticia-card:nth-child(23) { transition-delay: 0.13s; }
.noticia-card:nth-child(24) { transition-delay: 0.21s; }
.noticia-card:nth-child(25) { transition-delay: 0.05s; }
.noticia-card:nth-child(26) { transition-delay: 0.13s; }
.noticia-card:nth-child(27) { transition-delay: 0.21s; }
.noticia-card:nth-child(28) { transition-delay: 0.05s; }
.noticia-card:nth-child(29) { transition-delay: 0.13s; }
.noticia-card:nth-child(30) { transition-delay: 0.21s; }

/* ===================================================
   PRIMERA CARD — DESTACADA (fila completa)
   =================================================== */
.noticia-card:nth-child(1) {
    grid-column: 1 / -1;
    flex-direction: row;
}

.noticia-card:nth-child(1) .noticia-imagen {
    width: 45%;
    min-height: 300px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(15,26,11,0.55) 0%, rgba(90,104,79,0.45) 100%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='800' height='450'%3E%3Crect width='800' height='450' fill='%232d4a27'/%3E%3Ccircle cx='600' cy='120' r='180' fill='%234a7a42' opacity='0.5'/%3E%3Ccircle cx='150' cy='350' r='120' fill='%237E8F76' opacity='0.4'/%3E%3Cpath d='M0 320 Q200 260 400 300 Q600 340 800 280 L800 450 L0 450Z' fill='%235A684F' opacity='0.6'/%3E%3C/svg%3E") center/cover;
    transition: filter var(--transition-slow);
}

/* Zoom suave en la imagen al hover de la card */
.noticia-card:nth-child(1):hover .noticia-imagen {
    filter: brightness(1.06) saturate(1.1);
}

/* Overlay que aparece al hover */
.noticia-card:nth-child(1) .noticia-imagen::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(90,104,79,0.25) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
}
.noticia-card:nth-child(1):hover .noticia-imagen::before { opacity: 1; }

/* Badge DESTACADO */
.noticia-card:nth-child(1) .noticia-imagen::after {
    content: '★ Destacado';
    position: absolute;
    top: 1.2rem; left: 1.2rem;
    background: var(--green-dark);
    color: white;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.32rem 0.9rem;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
    z-index: 2;
    animation: badgePop 0.5s 1.1s cubic-bezier(0.34,1.56,0.64,1) both;
}

@keyframes badgePop {
    from { opacity: 0; transform: scale(0.6) translateY(-6px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.noticia-card:nth-child(1) .noticia-body {
    padding: 2.5rem 2.8rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.noticia-card:nth-child(1) h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.4rem, 2vw, 1.95rem);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -0.025em;
    color: var(--ink);
    margin-bottom: 0.9rem;
    transition: color var(--transition-fast);
}
.noticia-card:nth-child(1):hover h2 { color: var(--green-dark); }

.noticia-card:nth-child(1) p {
    font-size: 1.04rem;
    line-height: 1.78;
    color: var(--text-soft);
    margin-bottom: 1.6rem;
    font-weight: 300;
}

/* ===================================================
   IMAGEN — CARDS 2 EN ADELANTE
   =================================================== */
.noticia-card:nth-child(n+2) .noticia-imagen {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
}

/* Imagen real: zoom al hover */
.noticia-card:nth-child(n+2) .noticia-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow), filter var(--transition-slow);
}
.noticia-card:nth-child(n+2):hover .noticia-imagen img {
    transform: scale(1.07);
    filter: brightness(1.05) saturate(1.08);
}

/* Overlay suave sobre imagen real */
.noticia-card:nth-child(n+2) .noticia-imagen::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,26,11,0.35) 0%, transparent 55%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
}
.noticia-card:nth-child(n+2):hover .noticia-imagen::after { opacity: 1; }

/* Placeholder (cuando no hay imagen) */
.imagen-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--green-light);
    opacity: 0.5;
}

/* Fondos de placeholder por posición */
.noticia-card:nth-child(2)  .noticia-imagen,
.noticia-card:nth-child(2)  .imagen-placeholder { background: linear-gradient(135deg, rgba(43,106,158,0.7) 0%, rgba(15,26,11,0.8) 100%), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='500' height='280'%3E%3Crect width='500' height='280' fill='%231a3a5c'/%3E%3Ccircle cx='420' cy='60' r='90' fill='%23457bb5' opacity='0.4'/%3E%3C/svg%3E") center/cover; }
.noticia-card:nth-child(3)  .noticia-imagen,
.noticia-card:nth-child(3)  .imagen-placeholder { background: linear-gradient(135deg, rgba(184,92,56,0.6) 0%, rgba(15,26,11,0.75) 100%), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='500' height='280'%3E%3Crect width='500' height='280' fill='%23522010'/%3E%3Ccircle cx='100' cy='200' r='120' fill='%23b85c38' opacity='0.4'/%3E%3C/svg%3E") center/cover; }
.noticia-card:nth-child(4)  .noticia-imagen,
.noticia-card:nth-child(4)  .imagen-placeholder { background: linear-gradient(135deg, rgba(90,104,79,0.6) 0%, rgba(15,26,11,0.75) 100%), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='500' height='280'%3E%3Crect width='500' height='280' fill='%23333d28'/%3E%3Cpath d='M0 0 L500 0 L500 180 Q250 240 0 180Z' fill='%23596650' opacity='0.5'/%3E%3C/svg%3E") center/cover; }
.noticia-card:nth-child(5)  .noticia-imagen,
.noticia-card:nth-child(5)  .imagen-placeholder { background: linear-gradient(135deg, rgba(107,98,88,0.65) 0%, rgba(15,26,11,0.75) 100%); }
.noticia-card:nth-child(6)  .noticia-imagen,
.noticia-card:nth-child(6)  .imagen-placeholder { background: linear-gradient(135deg, rgba(43,106,158,0.55) 0%, rgba(90,104,79,0.65) 100%); }
.noticia-card:nth-child(7)  .noticia-imagen,
.noticia-card:nth-child(7)  .imagen-placeholder { background: linear-gradient(135deg, rgba(90,104,79,0.7) 0%, rgba(15,26,11,0.7) 100%); }
.noticia-card:nth-child(8)  .noticia-imagen,
.noticia-card:nth-child(8)  .imagen-placeholder { background: linear-gradient(135deg, rgba(184,92,56,0.5) 0%, rgba(43,106,158,0.6) 100%); }
.noticia-card:nth-child(9)  .noticia-imagen,
.noticia-card:nth-child(9)  .imagen-placeholder { background: linear-gradient(135deg, rgba(192,155,82,0.55) 0%, rgba(15,26,11,0.7) 100%); }
.noticia-card:nth-child(10) .noticia-imagen,
.noticia-card:nth-child(10) .imagen-placeholder { background: linear-gradient(135deg, rgba(90,104,79,0.55) 0%, rgba(107,98,88,0.65) 100%); }
.noticia-card:nth-child(11) .noticia-imagen,
.noticia-card:nth-child(11) .imagen-placeholder { background: linear-gradient(135deg, rgba(43,106,158,0.6) 0%, rgba(15,26,11,0.7) 100%); }
.noticia-card:nth-child(12) .noticia-imagen,
.noticia-card:nth-child(12) .imagen-placeholder { background: linear-gradient(135deg, rgba(184,92,56,0.55) 0%, rgba(90,104,79,0.6) 100%); }
.noticia-card:nth-child(13) .noticia-imagen,
.noticia-card:nth-child(13) .imagen-placeholder { background: linear-gradient(135deg, rgba(192,155,82,0.6) 0%, rgba(15,26,11,0.7) 100%); }
.noticia-card:nth-child(n+14) .noticia-imagen,
.noticia-card:nth-child(n+14) .imagen-placeholder { background: linear-gradient(135deg, rgba(90,104,79,0.5) 0%, rgba(15,26,11,0.65) 100%); }

/* ===================================================
   BODY DE CARDS 2+
   =================================================== */
.noticia-card:nth-child(n+2) .noticia-body {
    padding: 1.4rem 1.6rem 1.6rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.noticia-card:nth-child(n+2) h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1rem, 1.35vw, 1.18rem);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.012em;
    color: var(--ink);
    margin-bottom: 0.6rem;
    transition: color var(--transition-fast);
}
.noticia-card:nth-child(n+2):hover h2 { color: var(--green-dark); }

.noticia-card:nth-child(n+2) p {
    font-size: 0.88rem;
    line-height: 1.72;
    color: var(--text-light);
    flex: 1;
    margin-bottom: 1rem;
    font-weight: 300;
}

/* ===================================================
   META — FECHA Y CATEGORÍA
   =================================================== */
.noticia-meta {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 0.85rem;
    flex-wrap: wrap;
}

.noticia-fecha {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.76rem;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.noticia-fecha i { font-size: 0.72rem; opacity: 0.7; }

.noticia-fecha::before {
    content: '';
    display: inline-block;
    width: 14px; height: 1px;
    background: var(--green-light);
    flex-shrink: 0;
}

/* Pill de categoría */
.noticia-tag {
    display: inline-block;
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.2rem 0.75rem;
    border-radius: var(--radius-full);
    background: var(--green-xlight);
    color: var(--green-dark);
    border: 1px solid rgba(90,104,79,0.18);
    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-spring),
        box-shadow var(--transition-fast);
}
.noticia-card:hover .noticia-tag {
    background: var(--green-dark);
    color: white;
    border-color: transparent;
    transform: scale(1.04);
    box-shadow: 0 2px 10px rgba(90,104,79,0.3);
}

/* ===================================================
   NOTICIA FOOTER — BTN + LIKE
   =================================================== */
.noticia-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 0.85rem;
    border-top: 1px solid var(--gray-200);
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ===================================================
   BOTÓN LEER MÁS
   =================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.86rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-decoration: none;
    color: var(--green-dark);
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast), gap var(--transition-fast);
    align-self: flex-start;
    margin-top: auto;
}

.btn i {
    font-size: 0.8rem;
    transition: transform var(--transition-spring);
}
.btn:hover i { transform: translateX(5px); }
.btn:hover { color: var(--accent-gold); gap: 0.75rem; }

/* Línea animada bajo el botón */
.btn::before {
    content: '';
    position: absolute;
    bottom: -2px; left: 0;
    width: 100%;
    height: 1.5px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    border-radius: 2px;
}
.btn:hover::before { transform: scaleX(1); }

/* ===================================================
   LIKE BUTTON
   =================================================== */
.like-container { flex-shrink: 0; }

.like-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    padding: 0.36rem 0.95rem;
    font-size: 0.8rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--text-light);
    font-family: 'DM Sans', sans-serif;
    position: relative;
    overflow: hidden;
    transition:
        color var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast),
        transform var(--transition-spring),
        box-shadow var(--transition-fast);
}

/* Fondo de relleno al hacer liked */
.like-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: #e74c3c;
    transform: scale(0);
    border-radius: inherit;
    transition: transform var(--transition-spring);
    z-index: 0;
}
.like-btn.liked::before { transform: scale(1); }
.like-btn > * { position: relative; z-index: 1; }

.like-btn:hover {
    border-color: #e74c3c;
    color: #e74c3c;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(231,76,60,0.18);
}

.like-btn.liked {
    border-color: #e74c3c;
    color: white;
    box-shadow: 0 4px 16px rgba(231,76,60,0.32);
    animation: heartPop 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

.like-btn i {
    font-size: 0.85rem;
    transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
.like-btn.liked i { transform: scale(1.4); }
.like-btn:active   { transform: scale(0.95); }

.like-count { font-weight: 600; }
.like-text  { font-size: 0.75rem; }

@keyframes heartPop {
    0%   { transform: scale(1); }
    35%  { transform: scale(1.18); }
    65%  { transform: scale(0.92); }
    100% { transform: scale(1); }
}

/* ===================================================
   SIN NOTICIAS
   =================================================== */
.no-noticias {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem 2rem;
    background: var(--white);
    border-radius: var(--radius-block);
    border: 2px dashed var(--border);
    animation: fadeUp 0.6s ease both;
}

.no-noticias i {
    font-size: 3rem;
    color: var(--accent-gold);
    opacity: 0.4;
    margin-bottom: 1.2rem;
    display: block;
    animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-8px); }
}

.no-noticias p {
    font-family: 'Playfair Display', serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-soft);
    margin-bottom: 0.5rem;
}
.no-noticias span {
    font-size: 0.88rem;
    color: var(--text-light);
}

/* ===================================================
   DIVISOR EDITORIAL
   =================================================== */
.noticias-divider {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.5rem 0;
}

.noticias-divider span {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--text-light);
    white-space: nowrap;
}

.noticias-divider::before,
.noticias-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border), transparent);
}

/* ===================================================
   STATS / PAGINACIÓN
   =================================================== */
.noticias-stats {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 0 0.5rem;
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.8rem 2.5rem;
    position: relative;
    transition: transform var(--transition-spring);
}
.stat-item:hover { transform: translateY(-3px); }

.stat-item + .stat-item::before {
    content: '';
    position: absolute;
    left: 0; top: 20%; bottom: 20%;
    width: 1px;
    background: var(--border);
}

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--green-dark);
    line-height: 1;
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--text-light);
    margin-top: 0.3rem;
}

/* ===================================================
   PAGINACIÓN DINÁMICA
   =================================================== */
.paginacion {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0 0;
    border-top: 1px solid var(--border);
    animation: fadeUp 0.5s ease both;
}

.paginacion-info {
    font-size: 0.82rem;
    color: var(--text-light);
}

.paginacion-buttons {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    align-items: center;
}

.page-btn,
.page-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-card);
    font-size: 0.82rem;
    font-weight: 500;
    text-decoration: none;
    background: var(--white);
    border: 1px solid var(--border);
    color: var(--text-soft);
    min-width: 2.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-xs);
    transition:
        background var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-spring),
        box-shadow var(--transition-fast);
}

.page-btn i { font-size: 0.72rem; }

.page-btn:hover,
.page-number:hover {
    background: var(--green-xlight);
    border-color: rgba(90,104,79,0.3);
    color: var(--green-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(90,104,79,0.14);
}

.page-number.active {
    background: var(--green-dark);
    border-color: var(--green-dark);
    color: white;
    box-shadow: 0 4px 16px rgba(90,104,79,0.3);
    cursor: default;
    transform: translateY(-2px);
}
.page-number.active:hover { transform: translateY(-2px); }

.page-btn.disabled {
    opacity: 0.38;
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none;
}

.page-dots {
    padding: 0 0.2rem;
    color: var(--gray-400);
    user-select: none;
}

/* ===================================================
   FOOTER
   =================================================== */
footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--space-7) 0 var(--space-4);
    margin-top: var(--section-v);
    border-top: 4px solid var(--green);
    position: relative;
    overflow: hidden;
}

/* Línea brillante en la parte superior */
footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-light), transparent);
}

/* Resplandor decorativo de fondo */
footer::after {
    content: '';
    position: absolute;
    bottom: -40%; left: 50%;
    transform: translateX(-50%);
    width: 600px; height: 300px;
    background: radial-gradient(ellipse, rgba(90,104,79,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 2fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
    position: relative;
    z-index: 1;
}

.footer-info h3,
.footer-links h3,
.footer-contact h3 {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-3);
    letter-spacing: 0.04em;
    position: relative;
    display: inline-block;
    font-family: 'DM Sans', sans-serif;
}

.footer-info h3::after,
.footer-links h3::after,
.footer-contact h3::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 36px; height: 2px;
    background: linear-gradient(90deg, var(--green), var(--accent-gold));
    border-radius: 2px;
    transition: width var(--transition-base);
}

.footer-info:hover h3::after,
.footer-links:hover h3::after,
.footer-contact:hover h3::after { width: 100%; }

.footer-info p,
.footer-contact p {
    font-size: 0.92rem;
    line-height: 1.82;
    margin-bottom: 0.8rem;
    color: var(--gray-300);
}

.footer-info a,
.footer-contact a {
    color: var(--green-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.footer-info a:hover,
.footer-contact a:hover { color: white; }

.footer-links ul { list-style: none; margin-top: var(--space-3); }
.footer-links li { margin-bottom: 0.75rem; }

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast), transform var(--transition-fast), padding-left var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.footer-links a::before {
    content: '›';
    color: var(--green-light);
    transition: transform var(--transition-spring), color var(--transition-fast);
    display: inline-block;
}
.footer-links a:hover {
    color: white;
    padding-left: 4px;
}
.footer-links a:hover::before {
    transform: translateX(4px);
    color: var(--accent-gold);
}

.footer-social-links,
.social-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.2rem;
    flex-wrap: wrap;
}

.social-link {
    color: var(--gray-300);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.35rem 0.9rem;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-card);
    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-spring),
        box-shadow var(--transition-fast);
}
.social-link:hover {
    background: var(--green);
    color: white;
    border-color: var(--green);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(90,104,79,0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid rgba(255,255,255,0.07);
    font-size: 0.88rem;
    color: var(--gray-500);
    position: relative;
    z-index: 1;
}

/* ===================================================
   ANIMACIONES GLOBALES
   =================================================== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ===================================================
   ACCESIBILIDAD
   =================================================== */
:focus-visible {
    outline: 3px solid var(--green);
    outline-offset: 3px;
    border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 1024px) {
    .noticias-grid { grid-template-columns: repeat(2, 1fr); }
    .noticia-card:nth-child(1) { grid-column: 1 / -1; flex-direction: row; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root {
        --header-height-desktop: 65px;
        --header-height-mobile: 65px;
    }
    
    .main-header {
        height: var(--header-height-mobile);
    }
    
    .page-header {
        margin-top: var(--header-height-mobile);
    }
    
    .categorias-filtro {
        top: var(--header-height-mobile);
    }
    
    .main-header .header-logo { height: 42px; }
    
    /* Menú hamburguesa */
    .menu-toggle {
        display: block;
    }
    
    .main-nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(253, 252, 248, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem;
        gap: 0.5rem;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border);
    }
    
    .main-nav ul.active {
        display: flex;
        animation: fadeDown 0.3s ease;
    }
    
    .main-nav li {
        width: 100%;
        text-align: center;
    }
    
    .main-nav a {
        display: block;
        padding: 0.75rem;
    }
    
    .main-nav .btn-registro,
    .main-nav .btn-login,
    .main-nav .btn-logout {
        margin-left: 0;
        width: 100%;
        text-align: center;
    }

    .noticias-grid { 
        grid-template-columns: repeat(2, 1fr); 
        padding: 2rem 4%; 
    }

    .noticia-card:nth-child(1) {
        grid-column: 1 / -1;
        flex-direction: column;
    }
    .noticia-card:nth-child(1) .noticia-imagen {
        width: 100%;
        min-height: 200px;
        aspect-ratio: 16/9;
    }
    .noticia-card:nth-child(1) .noticia-body { padding: 1.5rem; }

    .page-header-inner { padding: 2.5rem 1.5rem; }
    .stat-item { padding: 0.8rem 1.5rem; }
    .stat-number { font-size: 1.6rem; }

    .paginacion { flex-direction: column; align-items: center; }
}

@media (max-width: 520px) {
    .noticias-grid { 
        grid-template-columns: 1fr; 
        padding: 1.5rem 5%; 
    }
    
    .noticia-card:nth-child(1) { flex-direction: column; }
    .noticia-card:nth-child(1) .noticia-imagen { 
        width: 100%; 
        aspect-ratio: 16/9; 
        min-height: unset; 
    }

    .noticia-footer { 
        flex-direction: column; 
        align-items: stretch; 
    }
    
    .like-btn { 
        width: 100%; 
        justify-content: center; 
    }

    .noticias-stats { 
        flex-direction: column; 
        gap: 0.5rem; 
    }
    
    .stat-item + .stat-item::before { display: none; }
    .stat-item { padding: 0.6rem 1rem; }

    .page-header h1 { font-size: 2rem; }
    
    .categorias-filtro .container { 
        padding: 0.75rem 1rem; 
        gap: 0.35rem; 
    }
    
    .categoria-btn { 
        padding: 0.35rem 0.85rem; 
        font-size: 0.75rem; 
    }

    .footer-grid { 
        grid-template-columns: 1fr; 
        text-align: center; 
    }
    
    .footer-social-links, 
    .social-links { 
        justify-content: center; 
    }
    
    .footer-links a { 
        justify-content: center; 
    }
}

/* ===================================================
   CLASES DE UTILIDAD ADICIONALES
   =================================================== */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }

/* Soporte para skeleton loading (opcional) */
.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite;
}

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

/* Toast notifications (opcional) */
.toast-notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--gray-900);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-card);
    font-size: 0.875rem;
    z-index: 2000;
    animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    box-shadow: var(--shadow-lg);
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    to { opacity: 0; visibility: hidden; }
}


/* ===================================================
   FIX COMPLETO - STICKY FILTER (NO BAJA CON EL SCROLL)
   =================================================== */

/* Asegurar que ningún padre tenga overflow hidden */
body, html {
    overflow-x: hidden;
    overflow-y: auto !important;
}

/* El filtro DEBE quedarse pegado */
.categorias-filtro {
    position: sticky !important;
    top: 80px !important;  /* Ajusta según la altura de tu header */
    z-index: 999 !important;
    background: var(--paper) !important;
    width: 100% !important;
    will-change: transform;
    transition: none;
}

/* Si tu header es fijo, asegúrate que no tape el contenido */
.main-header {
    position: fixed;
    top: 0;
    z-index: 1000;
}

/* Espacio para que el sticky no tape el contenido */
main, .noticias-grid {
    padding-top: 0;
}

/* Para móvil */
@media (max-width: 768px) {
    .categorias-filtro {
        top: 65px !important;  /* Altura de header en móvil */
    }
}