:root {
    --azul-950: #04111f;
    --azul-900: #071a2d;
    --azul-850: #0a2239;
    --azul-800: #0d2d49;
    --azul-700: #124d75;
    --celeste-500: #31a8d8;
    --celeste-300: #7dd5f4;
    --dorado-500: #f2b321;
    --dorado-400: #ffc43d;
    --blanco: #ffffff;
    --gris-50: #f7f9fb;
    --gris-100: #eef3f6;
    --gris-200: #dde6eb;
    --gris-300: #cbd7de;
    --gris-500: #74828d;
    --gris-600: #596874;
    --gris-700: #354652;
    --gris-800: #1e2d38;
    --texto: #152532;
    --sombra-suave: 0 12px 35px rgba(4, 17, 31, 0.08);
    --sombra-media: 0 22px 55px rgba(4, 17, 31, 0.14);
    --radio-sm: 8px;
    --radio-md: 14px;
    --radio-lg: 22px;
    --transicion: 180ms ease;
}

/* =========================================================
   RESETEO
========================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    color: var(--texto);
    background: var(--gris-50);
    line-height: 1.6;
    text-rendering: optimizeLegibility;
}

body.menu-abierto {
    overflow: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

.contenedor {
    width: min(1180px, calc(100% - 40px));
    margin-inline: auto;
}

.salto-contenido {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 5000;
    padding: 10px 14px;
    color: var(--azul-950);
    background: var(--dorado-500);
    border-radius: var(--radio-sm);
    transform: translateY(-150%);
    transition: transform var(--transicion);
}

.salto-contenido:focus {
    transform: translateY(0);
}

/* =========================================================
   ENCABEZADO
========================================================= */

.encabezado-principal {
    position: sticky;
    top: 0;
    z-index: 1000;
    color: var(--blanco);
    background: rgba(4, 17, 31, 0.96);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(14px);
}

.barra-principal {
    min-height: 82px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.marca-principal {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-encabezado {
    width: 58px;
    height: 58px;
    object-fit: contain;
    border-radius: 8px;
}

.nombre-marca {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.nombre-marca strong {
    color: var(--blanco);
    font-size: 1.05rem;
    letter-spacing: 0.04em;
}

.nombre-marca span {
    margin-top: 5px;
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.69rem;
    letter-spacing: 0.03em;
}

.menu-principal {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    margin-left: auto;
}

.enlace-menu {
    position: relative;
    padding: 29px 0 27px;
    color: rgba(255, 255, 255, 0.74);
    font-size: 0.88rem;
    font-weight: 700;
    transition:
        color var(--transicion),
        transform var(--transicion);
}

.enlace-menu::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 20px;
    left: 0;
    height: 2px;
    background: var(--dorado-500);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transicion);
}

.enlace-menu:hover,
.enlace-menu.activo {
    color: var(--blanco);
}

.enlace-menu:hover::after,
.enlace-menu.activo::after {
    transform: scaleX(1);
}

.acciones-usuario {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.boton-cabecera {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    border-radius: 7px;
    font-size: 0.82rem;
    font-weight: 800;
    transition:
        transform var(--transicion),
        background var(--transicion),
        color var(--transicion),
        border-color var(--transicion);
}

.boton-ingresar {
    color: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.boton-ingresar:hover {
    color: var(--blanco);
    border-color: rgba(255, 255, 255, 0.48);
    transform: translateY(-1px);
}

.boton-registro {
    color: var(--azul-950);
    background: var(--dorado-500);
}

.boton-registro:hover {
    background: var(--dorado-400);
    transform: translateY(-1px);
}

.boton-menu {
    display: none;
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 10px;
    border: 0;
    background: transparent;
}

.boton-menu span {
    display: block;
    width: 100%;
    height: 2px;
    margin: 5px 0;
    background: var(--blanco);
    transition:
        transform var(--transicion),
        opacity var(--transicion);
}

/* =========================================================
   BOTONES GENERALES
========================================================= */

.boton {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    border-radius: var(--radio-sm);
    font-weight: 800;
    transition:
        transform var(--transicion),
        box-shadow var(--transicion),
        background var(--transicion),
        border-color var(--transicion);
}

.boton-destacado {
    color: var(--azul-950);
    background: var(--dorado-500);
    box-shadow: 0 10px 30px rgba(242, 179, 33, 0.18);
}

.boton-destacado:hover {
    background: var(--dorado-400);
    box-shadow: 0 15px 36px rgba(242, 179, 33, 0.27);
    transform: translateY(-2px);
}

.boton-transparente {
    color: var(--blanco);
    border: 1px solid rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.03);
}

.boton-transparente:hover {
    border-color: rgba(255, 255, 255, 0.62);
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-2px);
}

/* =========================================================
   PORTADA
========================================================= */

.portada-principal {
    position: relative;
    overflow: hidden;
    color: var(--blanco);
    background:
        radial-gradient(circle at 80% 25%, rgba(49, 168, 216, 0.23), transparent 27%),
        radial-gradient(circle at 20% 85%, rgba(18, 77, 117, 0.40), transparent 32%),
        linear-gradient(135deg, var(--azul-950) 0%, var(--azul-900) 45%, var(--azul-800) 100%);
}

.fondo-tecnico {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.34;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
}

.fondo-tecnico::before,
.fondo-tecnico::after {
    content: "";
    position: absolute;
    border: 1px solid rgba(125, 213, 244, 0.12);
    border-radius: 50%;
}

.fondo-tecnico::before {
    width: 500px;
    height: 500px;
    top: -180px;
    right: -90px;
}

.fondo-tecnico::after {
    width: 760px;
    height: 760px;
    right: -290px;
    bottom: -430px;
}

.grilla-portada {
    position: relative;
    min-height: 710px;
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
    align-items: center;
    gap: 80px;
    padding: 86px 0 96px;
}

.sobrelinea {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--dorado-500);
    font-size: 0.74rem;
    font-weight: 900;
    letter-spacing: 0.16em;
}

.sobrelinea-oscura {
    color: var(--azul-700);
}

.contenido-portada h1 {
    max-width: 780px;
    margin-bottom: 26px;
    font-size: clamp(3rem, 5.5vw, 5.5rem);
    line-height: 1.02;
    letter-spacing: -0.055em;
}

.contenido-portada h1 strong {
    display: block;
    color: var(--celeste-300);
    font-weight: 850;
}

.descripcion-portada {
    max-width: 730px;
    margin-bottom: 34px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 1.08rem;
}

.botones-portada {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.datos-portada {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 52px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.dato-portada {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dato-portada strong {
    color: var(--blanco);
    font-size: 0.88rem;
}

.dato-portada span {
    color: rgba(255, 255, 255, 0.52);
    font-size: 0.74rem;
}

.visual-portada {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.halo-logo {
    position: absolute;
    width: 430px;
    height: 430px;
    border-radius: 50%;
    background:
        radial-gradient(circle, rgba(49, 168, 216, 0.18), rgba(49, 168, 216, 0.02) 58%, transparent 72%);
    filter: blur(2px);
}

.marco-logo-principal {
    position: relative;
    width: min(430px, 90%);
    padding: 22px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.055);
    box-shadow:
        0 35px 80px rgba(0, 0, 0, 0.30),
        inset 0 1px 0 rgba(255, 255, 255, 0.10);
    backdrop-filter: blur(12px);
}

.logo-portada {
    width: 100%;
    max-height: 360px;
    object-fit: contain;
    border-radius: 15px;
}

.tarjeta-flotante {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 220px;
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: 12px;
    background: rgba(4, 17, 31, 0.74);
    box-shadow: 0 16px 42px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(12px);
}

.tarjeta-flotante-superior {
    top: 54px;
    right: -20px;
}

.tarjeta-flotante-inferior {
    bottom: 52px;
    left: -18px;
}

.tarjeta-flotante strong {
    display: block;
    color: var(--blanco);
    font-size: 0.80rem;
}

.tarjeta-flotante small {
    display: block;
    margin-top: 2px;
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.68rem;
}

.indicador-flotante {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #42d687;
    box-shadow: 0 0 0 6px rgba(66, 214, 135, 0.10);
}

.icono-flotante {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: var(--azul-950);
    background: var(--dorado-500);
    border-radius: 9px;
    font-size: 0.76rem;
    font-weight: 900;
}

/* =========================================================
   SECCIONES GENERALES
========================================================= */

.seccion {
    padding: 104px 0;
}

.encabezado-seccion {
    max-width: 760px;
    margin-bottom: 48px;
}

.encabezado-seccion h2,
.contenido-principios h2,
.contenido-participacion h2 {
    margin-bottom: 18px;
    color: var(--azul-950);
    font-size: clamp(2.2rem, 4vw, 3.6rem);
    line-height: 1.08;
    letter-spacing: -0.045em;
}

.encabezado-seccion p,
.contenido-principios p,
.contenido-participacion p {
    color: var(--gris-600);
    font-size: 1.04rem;
}

.encabezado-con-accion {
    max-width: none;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 40px;
}

.encabezado-con-accion > div {
    max-width: 760px;
}

.enlace-general {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    color: var(--azul-700);
    font-weight: 850;
}

.enlace-general:hover {
    color: var(--celeste-500);
}

/* =========================================================
   ECOSISTEMA
========================================================= */

.seccion-ecosistema {
    background: var(--gris-50);
}

.grilla-accesos {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.tarjeta-acceso {
    min-height: 320px;
    display: flex;
    flex-direction: column;
    padding: 30px;
    border: 1px solid var(--gris-200);
    border-radius: var(--radio-md);
    background: var(--blanco);
    box-shadow: 0 7px 24px rgba(4, 17, 31, 0.045);
    transition:
        transform var(--transicion),
        box-shadow var(--transicion),
        border-color var(--transicion);
}

.tarjeta-acceso:hover {
    border-color: rgba(49, 168, 216, 0.34);
    box-shadow: var(--sombra-media);
    transform: translateY(-6px);
}

.cabecera-tarjeta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 25px;
}

.icono-tarjeta {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    color: var(--azul-700);
    background: rgba(49, 168, 216, 0.11);
    border-radius: 11px;
    font-size: 1.38rem;
    font-weight: 900;
}

.estado-tarjeta {
    padding: 5px 9px;
    color: #147448;
    background: #e9f8f0;
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 850;
    letter-spacing: 0.03em;
}

.estado-proximo {
    color: #8a6210;
    background: #fff5d7;
}

.tarjeta-acceso h3 {
    margin-bottom: 13px;
    color: var(--azul-950);
    font-size: 1.30rem;
}

.tarjeta-acceso p {
    margin-bottom: 28px;
    color: var(--gris-600);
    font-size: 0.92rem;
}

.enlace-tarjeta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    color: var(--azul-700);
    font-size: 0.86rem;
    font-weight: 850;
}

.enlace-tarjeta span {
    transition: transform var(--transicion);
}

.enlace-tarjeta:hover {
    color: var(--celeste-500);
}

.enlace-tarjeta:hover span {
    transform: translateX(4px);
}

/* =========================================================
   PRINCIPIOS
========================================================= */

.seccion-principios {
    color: var(--blanco);
    background:
        radial-gradient(circle at 15% 20%, rgba(49, 168, 216, 0.16), transparent 28%),
        linear-gradient(135deg, var(--azul-950), var(--azul-850));
}

.grilla-principios {
    display: grid;
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 80px;
    align-items: center;
}

.contenido-principios h2 {
    color: var(--blanco);
}

.contenido-principios p {
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.67);
}

.lista-principios {
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: var(--radio-lg);
    background: rgba(255, 255, 255, 0.04);
    overflow: hidden;
}

.principio {
    display: grid;
    grid-template-columns: 58px 1fr;
    gap: 18px;
    padding: 25px 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.principio:last-child {
    border-bottom: 0;
}

.numero-principio {
    color: var(--dorado-500);
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.principio h3 {
    margin-bottom: 7px;
    color: var(--blanco);
    font-size: 1rem;
}

.principio p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.60);
    font-size: 0.86rem;
}

/* =========================================================
   PUBLICACIONES
========================================================= */

.seccion-actividad {
    background: var(--blanco);
}

.grilla-publicaciones {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.tarjeta-publicacion {
    border: 1px solid var(--gris-200);
    border-radius: var(--radio-md);
    background: var(--blanco);
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(4, 17, 31, 0.055);
    transition:
        transform var(--transicion),
        box-shadow var(--transicion);
}

.tarjeta-publicacion:hover {
    box-shadow: var(--sombra-media);
    transform: translateY(-5px);
}

.imagen-publicacion {
    min-height: 180px;
    display: flex;
    align-items: flex-end;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.imagen-publicacion::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 28px 28px;
}

.publicacion-aplicacion {
    background:
        radial-gradient(circle at 75% 25%, rgba(125, 213, 244, 0.30), transparent 30%),
        linear-gradient(135deg, #08243a, #124d75);
}

.publicacion-biblioteca {
    background:
        radial-gradient(circle at 70% 30%, rgba(242, 179, 33, 0.24), transparent 30%),
        linear-gradient(135deg, #203246, #41576c);
}

.publicacion-empleo {
    background:
        radial-gradient(circle at 68% 28%, rgba(66, 214, 135, 0.23), transparent 30%),
        linear-gradient(135deg, #0b2b31, #18586a);
}

.imagen-publicacion span {
    position: relative;
    z-index: 1;
    padding: 6px 9px;
    color: var(--blanco);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    background: rgba(4, 17, 31, 0.48);
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0.10em;
}

.contenido-publicacion {
    padding: 24px;
}

.metadatos-publicacion {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
    color: var(--gris-500);
    font-size: 0.68rem;
    font-weight: 700;
}

.contenido-publicacion h3 {
    margin-bottom: 12px;
    color: var(--azul-950);
    font-size: 1.16rem;
}

.contenido-publicacion > p {
    min-height: 68px;
    margin-bottom: 24px;
    color: var(--gris-600);
    font-size: 0.86rem;
}

.autor-publicacion {
    display: flex;
    align-items: center;
    gap: 11px;
    padding-top: 18px;
    border-top: 1px solid var(--gris-100);
}

.avatar-autor {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: var(--blanco);
    background: var(--azul-700);
    border-radius: 50%;
    font-size: 0.69rem;
    font-weight: 900;
}

.autor-publicacion strong {
    display: block;
    color: var(--gris-800);
    font-size: 0.78rem;
}

.autor-publicacion span {
    display: block;
    margin-top: 2px;
    color: var(--gris-500);
    font-size: 0.68rem;
}

/* =========================================================
   PARTICIPACIÓN
========================================================= */

.seccion-participacion {
    padding: 72px 0;
    background: var(--gris-100);
}

.bloque-participacion {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 70px;
    padding: 48px;
    border: 1px solid var(--gris-200);
    border-radius: var(--radio-lg);
    background:
        radial-gradient(circle at 90% 10%, rgba(49, 168, 216, 0.09), transparent 30%),
        var(--blanco);
    box-shadow: var(--sombra-suave);
}

.contenido-participacion {
    max-width: 760px;
}

.contenido-participacion h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
}

.acciones-participacion {
    min-width: 250px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
}

.acciones-participacion span {
    max-width: 270px;
    color: var(--gris-500);
    font-size: 0.72rem;
}

/* =========================================================
   PIE
========================================================= */

.pie-principal {
    color: rgba(255, 255, 255, 0.65);
    background: var(--azul-950);
}

.grilla-pie {
    display: grid;
    grid-template-columns: 1.7fr repeat(3, 1fr);
    gap: 60px;
    padding: 72px 0 58px;
}

.marca-pie {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.marca-pie img {
    width: 58px;
    height: 58px;
    object-fit: contain;
    border-radius: 8px;
}

.marca-pie strong {
    color: var(--blanco);
    letter-spacing: 0.04em;
}

.columna-marca-pie p {
    max-width: 380px;
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.88rem;
}

.columna-marca-pie > span {
    color: rgba(255, 255, 255, 0.40);
    font-size: 0.74rem;
}

.columna-pie {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.columna-pie h3 {
    margin-bottom: 8px;
    color: var(--blanco);
    font-size: 0.82rem;
    letter-spacing: 0.03em;
}

.columna-pie a {
    color: rgba(255, 255, 255, 0.56);
    font-size: 0.78rem;
    transition: color var(--transicion);
}

.columna-pie a:hover {
    color: var(--dorado-500);
}

.base-pie {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.base-pie p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.44);
    font-size: 0.72rem;
}

.base-pie > div {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.base-pie a {
    color: rgba(255, 255, 255, 0.44);
    font-size: 0.72rem;
}

.base-pie a:hover {
    color: var(--blanco);
}

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1120px) {
    .nombre-marca span {
        display: none;
    }

    .menu-principal {
        gap: 16px;
    }

    .acciones-usuario {
        display: none;
    }

    .grilla-portada {
        grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr);
        gap: 45px;
    }

    .tarjeta-flotante-superior {
        right: -5px;
    }

    .tarjeta-flotante-inferior {
        left: -5px;
    }
}

@media (max-width: 930px) {
    .boton-menu {
        display: block;
    }

    .menu-principal {
        position: fixed;
        top: 82px;
        right: 0;
        bottom: 0;
        width: min(340px, 88vw);
        display: flex;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        margin: 0;
        padding: 20px;
        background: var(--azul-950);
        box-shadow: -18px 0 45px rgba(0, 0, 0, 0.28);
        transform: translateX(105%);
        transition: transform 220ms ease;
    }

    .menu-principal.activo {
        transform: translateX(0);
    }

    .enlace-menu {
        padding: 15px 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .enlace-menu::after {
        display: none;
    }

    .boton-menu.activo span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .boton-menu.activo span:nth-child(2) {
        opacity: 0;
    }

    .boton-menu.activo span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .grilla-portada {
        grid-template-columns: 1fr;
        min-height: auto;
        padding: 80px 0;
        text-align: center;
    }

    .contenido-portada h1,
    .descripcion-portada {
        margin-inline: auto;
    }

    .botones-portada {
        justify-content: center;
    }

    .datos-portada {
        text-align: left;
    }

    .visual-portada {
        min-height: 430px;
        margin-top: 8px;
    }

    .marco-logo-principal {
        width: min(390px, 84%);
    }

    .grilla-accesos,
    .grilla-publicaciones {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grilla-principios {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .bloque-participacion {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .acciones-participacion {
        min-width: 0;
    }

    .grilla-pie {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .contenedor {
        width: min(100% - 28px, 1180px);
    }

    .nombre-marca {
        display: none;
    }

    .logo-encabezado {
        width: 52px;
        height: 52px;
    }

    .barra-principal {
        min-height: 72px;
    }

    .menu-principal {
        top: 72px;
    }

    .grilla-portada {
        padding: 64px 0 70px;
    }

    .contenido-portada h1 {
        font-size: clamp(2.5rem, 13vw, 4.2rem);
    }

    .descripcion-portada {
        font-size: 0.96rem;
    }

    .botones-portada {
        flex-direction: column;
    }

    .boton {
        width: 100%;
    }

    .datos-portada {
        grid-template-columns: 1fr;
    }

    .visual-portada {
        min-height: 370px;
    }

    .tarjeta-flotante {
        min-width: 190px;
        padding: 12px;
    }

    .tarjeta-flotante-superior {
        top: 20px;
        right: 0;
    }

    .tarjeta-flotante-inferior {
        bottom: 22px;
        left: 0;
    }

    .seccion {
        padding: 76px 0;
    }

    .grilla-accesos,
    .grilla-publicaciones {
        grid-template-columns: 1fr;
    }

    .tarjeta-acceso {
        min-height: auto;
    }

    .encabezado-con-accion {
        align-items: flex-start;
        flex-direction: column;
    }

    .principio {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .bloque-participacion {
        padding: 30px 24px;
    }

    .grilla-pie {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .base-pie {
        align-items: flex-start;
        flex-direction: column;
        padding: 24px 0;
    }
}