@import url('https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,400;0,500;0,600;1,400&family=Public+Sans:wght@400;500;600&display=swap');

:root {
    --rojo: #C8202F;
    --rojo-oscuro: #9E1824;
    --marino: #16213E;
    --marino-claro: #24345F;
    --tinta: #1A1A1A;
    --papel: #F7F6F3;
    --papel-crema: #FBFAF7;
    --dorado: #B08D3E;
    --piedra: #5C5A54;
    --piedra-claro: #8C897F;
    --linea: #E3E0D8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Public Sans', sans-serif;
    background: var(--papel);
    color: var(--tinta);
    line-height: 1.6;
    font-size: 16px;
}

h1, h2, h3, .serif {
    font-family: 'Spectral', serif;
    font-weight: 500;
    line-height: 1.25;
    color: var(--tinta);
}

a { color: inherit; }

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

.contenedor {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 28px;
}

/* --- Franja mes de la Patria (temporal, quitar después de septiembre) --- */
.franja-patria {
    background: #0039A6;
    color: #fff;
    padding: 8px 0;
}
.franja-patria-contenido {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    font-size: 12.5px;
    letter-spacing: 0.2px;
}
.franja-patria-contenido span { margin-left: 9px; }
.estrella-patria, .bandera-chile {
    width: 20px;
    height: 14px;
    flex-shrink: 0;
    border-radius: 1px;
}

/* --- Barra de emergencia --- */
.franja-emergencia {
    background: var(--tinta);
    color: var(--papel-crema);
    font-size: 13px;
    letter-spacing: 0.3px;
    padding: 9px 0;
}
.franja-emergencia .contenedor {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}
.franja-emergencia strong { color: #fff; }
.franja-emergencia a { text-decoration: underline; text-underline-offset: 2px; }

/* --- Encabezado --- */
header.principal {
    background: var(--papel-crema);
    border-bottom: 1px solid var(--linea);
    padding: 26px 0;
}
header.principal .contenedor {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}
.marca {
    display: flex;
    align-items: center;
    gap: 18px;
    text-decoration: none;
}
.marca img { width: 64px; height: 64px; object-fit: contain; }
.marca-texto { line-height: 1.25; }
.marca-texto .nombre { font-family: 'Spectral', serif; font-weight: 600; font-size: 21px; }
.marca-texto .lema { font-size: 12px; color: var(--piedra); letter-spacing: 0.4px; }

nav.principal { display: flex; align-items: center; gap: 8px; }
nav.principal a { margin-left: 6px; }
nav.principal a:first-child { margin-left: 0; }
nav.principal a {
    text-decoration: none;
    font-size: 15.5px;
    font-weight: 500;
    color: var(--tinta);
    padding: 8px 14px;
    border-radius: 3px;
}
nav.principal a:hover { color: var(--rojo); background: rgba(200,32,47,0.06); }
.enlace-portal {
    border: 1px solid var(--tinta);
    padding: 10px 20px !important;
    border-radius: 3px;
    font-size: 14px !important;
    margin-left: 14px !important;
}
.enlace-portal:hover { border-color: var(--rojo); color: var(--rojo) !important; background: transparent !important; }

/* --- Hero --- */
.hero {
    padding: 72px 0 64px;
    border-bottom: 1px solid var(--linea);
}
.hero .contenedor {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 60px;
    align-items: center;
}
.hero .escudo-grande { width: 100%; max-width: 260px; }
.hero .fundacion {
    font-size: 13px;
    text-transform: none;
    color: var(--dorado);
    font-weight: 600;
    letter-spacing: 0.3px;
    margin-bottom: 14px;
}
.hero h1 {
    font-size: 42px;
    max-width: 15ch;
    margin-bottom: 20px;
}
.hero .lema-grande {
    font-size: 18px;
    font-style: italic;
    color: var(--piedra);
    font-family: 'Spectral', serif;
    margin-bottom: 26px;
}
.hero p.intro {
    font-size: 16px;
    color: var(--piedra);
    max-width: 46ch;
    margin-bottom: 30px;
}
.acciones-hero { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-principal, .btn-secundario {
    display: inline-block;
    padding: 13px 24px;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
}
.btn-principal { background: var(--rojo); color: #fff; }
.btn-principal:hover { background: var(--rojo-oscuro); }
.btn-secundario { border: 1px solid var(--tinta); color: var(--tinta); }
.btn-secundario:hover { border-color: var(--rojo); color: var(--rojo); }

/* --- Franja Nexus (identidad propia, distinta del sitio institucional) --- */
.franja-nexus {
    background: #0A0E14;
    padding: 60px 0;
}
.nexus-grid {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 44px;
    align-items: center;
}
.aguila-nexus {
    width: 100%;
    max-width: 140px;
    filter: drop-shadow(0 0 14px rgba(226,75,74,0.45));
}
.nexus-eyebrow {
    color: #E24B4A;
    font-size: 12px;
    letter-spacing: 0.4px;
    font-weight: 600;
    margin-bottom: 8px;
}
.franja-nexus h2 {
    color: #F2F0EA;
    font-size: 27px;
    margin-bottom: 14px;
}
.nexus-texto {
    color: #9BA3AF;
    font-size: 15px;
    max-width: 60ch;
    margin-bottom: 22px;
}
.btn-nexus {
    display: inline-block;
    background: #E24B4A;
    color: #fff;
    padding: 13px 24px;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
}
.btn-nexus:hover { background: #C93938; }

/* --- Franja de cifras institucionales --- */
.franja-cifras {
    background: var(--rojo);
    padding: 0;
}
.cifras-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}
.cifra {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 34px 12px;
    border-left: 1px solid rgba(255,255,255,0.18);
}
.cifra:first-child { border-left: none; }
.cifra-num {
    font-family: 'Spectral', serif;
    font-size: 34px;
    color: #fff;
    line-height: 1;
    margin-bottom: 8px;
}
.cifra-label {
    font-size: 12.5px;
    color: rgba(255,255,255,0.85);
    letter-spacing: 0.3px;
}

/* --- Secciones generales --- */
section { padding: 64px 0; }
section.alterna { background: var(--papel-crema); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.encabezado-seccion { max-width: 56ch; margin-bottom: 40px; }
.encabezado-seccion::before {
    content: '';
    display: block;
    width: 36px;
    height: 3px;
    background: var(--dorado);
    margin-bottom: 18px;
}
.encabezado-seccion h2 { font-size: 28px; margin-bottom: 12px; }
.encabezado-seccion p { color: var(--piedra); font-size: 15px; }

/* --- Historia --- */
.historia-cuerpo {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 56px;
    align-items: start;
}
.historia-cuerpo p { margin-bottom: 16px; color: var(--tinta); font-size: 15.5px; }
.historia-cuerpo p.destacado {
    font-family: 'Spectral', serif;
    font-style: italic;
    font-size: 19px;
    color: var(--rojo-oscuro);
    border-left: 3px solid var(--dorado);
    padding-left: 18px;
    margin: 24px 0;
}
.ficha {
    border: 1px solid var(--linea);
    background: var(--papel-crema);
    padding: 26px;
}
.ficha dt { font-size: 12px; color: var(--piedra); text-transform: uppercase; letter-spacing: 0.4px; margin-top: 16px; }
.ficha dt:first-child { margin-top: 0; }
.ficha dd { font-family: 'Spectral', serif; font-size: 17px; margin: 2px 0 0; }

/* --- Autoridades --- */
.autoridades-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--linea);
}
.autoridad {
    border-top: 3px solid var(--dorado);
    padding: 18px 4px 0;
}
.autoridad-cargo {
    display: block;
    font-size: 12px;
    color: var(--piedra);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    margin-bottom: 6px;
}
.autoridad-nombre {
    display: block;
    font-family: 'Spectral', serif;
    font-size: 19px;
}

/* --- Cronología histórica --- */
.cronologia {
    margin-top: 48px;
    padding-top: 36px;
    border-top: 1px solid var(--linea);
}
.crono-item {
    display: grid;
    grid-template-columns: 64px 20px 1fr;
    gap: 4px;
    column-gap: 20px;
}
.crono-año {
    font-family: 'Spectral', serif;
    font-size: 19px;
    font-weight: 600;
    color: var(--rojo);
    padding-top: 1px;
    text-align: right;
}
.crono-linea {
    position: relative;
    display: flex;
    justify-content: center;
}
.crono-linea::before {
    content: '';
    position: absolute;
    top: 8px;
    bottom: -36px;
    width: 2px;
    background: var(--linea);
}
.crono-item-final .crono-linea::before { display: none; }
.crono-punto {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--rojo);
    margin-top: 6px;
    position: relative;
    z-index: 1;
}
.crono-contenido { padding-bottom: 40px; }
.crono-item-final .crono-contenido { padding-bottom: 0; }
.crono-contenido h3 { font-size: 17px; margin-bottom: 8px; }
.crono-contenido p { font-size: 14px; color: var(--tinta); margin-bottom: 12px; max-width: 62ch; }
.crono-contenido img {
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--linea);
    display: block;
    filter: grayscale(100%) contrast(1.08);
}
.crono-caption {
    font-family: 'Spectral', serif;
    font-style: italic;
    font-size: 12.5px !important;
    color: var(--piedra) !important;
    margin-top: 8px !important;
    max-width: 480px;
}
.cronologia-fuente {
    font-size: 12px;
    color: var(--piedra-claro);
    margin-top: 8px;
    font-style: italic;
}

/* --- Compañías --- */
.lista-companias { border-top: 1px solid var(--linea); }
.compania {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--linea);
    align-items: baseline;
}
.compania .numero {
    font-family: 'Spectral', serif;
    font-size: 34px;
    color: var(--dorado);
}
.compania h3 { font-size: 19px; margin-bottom: 6px; }
.compania p { color: var(--piedra); font-size: 14.5px; max-width: 55ch; }

/* --- Cómo ayudar --- */
.ayudar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
.ayudar-item h3 { font-size: 18px; margin-bottom: 10px; }
.ayudar-item p { color: var(--piedra); font-size: 14.5px; margin-bottom: 14px; }
.ayudar-item a { font-size: 14px; font-weight: 600; color: var(--rojo); text-decoration: none; }
.ayudar-item a:hover { text-decoration: underline; }

/* --- Contacto --- */
.contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
}
.contacto-item { margin-bottom: 22px; }
.contacto-item .etiqueta { font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; color: var(--piedra); margin-bottom: 4px; }
.contacto-item .valor { font-family: 'Spectral', serif; font-size: 18px; }
.placeholder { color: var(--rojo); }

/* --- Footer --- */
footer.principal {
    background: var(--marino);
    color: #B8BFD1;
    padding: 50px 0 0;
}

.pie-columnas {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 30px;
    padding-bottom: 40px;
}
.pie-col h4 {
    font-family: 'Spectral', serif;
    font-weight: 500;
    color: #fff;
    font-size: 14px;
    margin-bottom: 14px;
}
.pie-col a, .pie-col .pie-texto {
    display: block;
    color: #B8BFD1;
    text-decoration: none;
    font-size: 13.5px;
    margin-bottom: 10px;
}
.pie-col a:hover { color: #fff; text-decoration: underline; }
.pie-marca { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.pie-marca img { width: 40px; height: 40px; }
.pie-marca span { font-family: 'Spectral', serif; color: #fff; font-size: 16px; line-height: 1.2; }
.pie-lema { font-size: 12.5px; color: #8992AB; font-style: italic; max-width: 28ch; }

.pie-inferior {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 12.5px;
    border-top: 1px solid rgba(255,255,255,0.12);
    padding: 20px 0;
}
.pie-inferior a { color: #B8BFD1; text-decoration: underline; text-underline-offset: 2px; }
.pie-inferior a:hover { color: #fff; }
.marca-footer { display: flex; align-items: center; gap: 10px; }
.marca-footer a { margin-left: 6px; }
.marca-footer strong { color: #fff; }

.pie-legal {
    font-size: 11.5px;
    color: #77809A;
    padding: 14px 0 22px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

/* --- Responsive --- */
@media (max-width: 820px) {
    .hero .contenedor { grid-template-columns: 1fr; text-align: left; }
    .hero .escudo-grande { max-width: 160px; order: -1; margin-bottom: 10px; }
    .hero h1 { font-size: 32px; }
    .nexus-grid { grid-template-columns: 1fr; text-align: left; }
    .aguila-nexus { max-width: 100px; }
    .cifras-grid { grid-template-columns: 1fr 1fr; }
    .cifra { border-left: none; border-top: 1px solid rgba(255,255,255,0.18); }
    .cifra:nth-child(1), .cifra:nth-child(2) { border-top: none; }
    .historia-cuerpo { grid-template-columns: 1fr; }
    .autoridades-grid { grid-template-columns: 1fr; }
    .crono-item { grid-template-columns: 44px 16px 1fr; column-gap: 12px; }
    .crono-año { font-size: 15px; }
    .ayudar-grid { grid-template-columns: 1fr; }
    .contacto-grid { grid-template-columns: 1fr; }
    .compania { grid-template-columns: 60px 1fr; }
    .pie-columnas { grid-template-columns: 1fr 1fr; }
    nav.principal { display: none; }
}