/*
Theme Name: Servicio Central de Idiomas - USAL
Theme URI: https://sci.usal.es/
Description: Tema a medida, limpio y optimizado para el SCI de la Universidad de Salamanca. Sin constructores visuales pesados.
Version: 1.1
Author: Tu Nombre / Responsable SCI
Text Domain: tema-sci
*/

/* ==========================================================================
   1. VARIABLES Y CONFIGURACIÓN BÁSICA
   ========================================================================== */
:root {
    --color-usal: #9c0006; 
    --color-usal-rojo: #cc0000; 
    --color-usal-oscuro: #a30000; 
    --color-texto: #333333;
    --color-texto-azul: #5c7cb0; 
    --color-fondo: #f9f9f9;
    --color-borde: #e0e0e0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--color-texto);
    background-color: var(--color-fondo);
    line-height: 1.6;
    margin: 0;
    padding: 0; /* Quitamos padding general para que la cabecera llegue al borde */
}

/* Para dar un poco de margen al contenido que no sea portada */
main {
    padding: 40px 20px;
}

/* ==========================================================================
   2. CABECERA Y NAVEGACIÓN (Diseño de 3 capas)
   ========================================================================== */
.cabecera-principal {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    background-color: #ffffff;
    position: relative;
    z-index: 1000;
}

.contenedor-centrado {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* --- CAPA 1: Barra Superior --- */
.barra-superior {
    padding: 10px 0;
    text-align: center;
    font-size: 0.9rem;
}

.barra-superior a {
    color: var(--color-texto-azul);
    text-decoration: none;
}

.barra-superior a:hover {
    text-decoration: underline;
}

/* --- CAPA 2: Logo --- */
.area-logo {
    padding: 15px 0 25px 0;
    text-align: center;
}

.area-logo img {
    max-height: 70px;
    width: auto;
}

/* --- CAPA 3: Navegación (Barra Roja) --- */
.area-navegacion {
    background-color: var(--color-usal-rojo);
    width: 100%;
}

.navegacion-principal {
    display: flex;
    justify-content: center;
    align-items: center;
}

.navegacion-principal div > ul,
.navegacion-principal ul {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center;
    flex-wrap: nowrap !important;
    justify-content: center;
    gap: 15px;
}

.navegacion-principal li {
    position: relative;
    margin: 0;
}

.navegacion-principal a {
    text-decoration: none;
    color: #ffffff;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    display: block;
    padding: 22px 12px;
    white-space: nowrap;
}

/* Hover: Subrayado blanco */
.navegacion-principal > div > ul > li > a:hover,
.navegacion-principal > ul > li > a:hover,
.navegacion-principal .current-menu-item > a {
    background-color: transparent !important;
    text-decoration: underline;
    text-underline-offset: 5px;
}

.navegacion-principal .menu-item-has-children > a::after {
    content: " ▼";
    font-size: 0.65em;
    vertical-align: middle;
    margin-left: 6px;
    opacity: 0.8;
}

/* --- Submenús (Desplegables Blancos) --- */
.navegacion-principal ul ul {
    display: none !important; 
    position: absolute;
    top: 100%;
    left: 0;
    background: #ffffff;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    min-width: 250px;
    z-index: 999;
    flex-direction: column !important;
    border-bottom: 3px solid var(--color-usal-rojo);
    padding: 10px 0 !important; /* Mantiene un poco de aire arriba y abajo del bloque blanco */
}

.navegacion-principal li:hover > ul {
    display: flex !important;
}

.navegacion-principal ul ul li {
    width: 100%; /* Asegura que cada elemento ocupe todo el ancho del submenú */
    padding: 0;
    margin: 0;
}

.navegacion-principal ul ul a {
    border-bottom: none !important; /* Quitamos la línea cortada de debajo */
    padding: 12px 25px; /* Ajustamos el espaciado interno */
    font-size: 0.95rem;
    color: #444444 !important; /* Gris oscuro elegante */
    text-align: left !important; /* Forzamos alineación a la izquierda */
    white-space: normal; 
    background-color: transparent !important; /* Eliminamos el fondo blanco tipo botón */
    border-radius: 0 !important; /* Eliminamos bordes redondeados en los items */
    box-shadow: none !important; /* Eliminamos la sombra que daba el efecto caja */
    display: block; /* Asegura que toda el área del item sea clicable */
    margin: 0 !important; /* Quitamos márgenes externos que causaban el efecto caja */
}

/* Hover en el desplegable: Hover rojo */
.navegacion-principal ul ul a:hover {
    background-color: #f9f9f9 !important; /* Fondo gris MUY sutil en toda la fila */
    color: var(--color-usal-rojo) !important; /* Texto en rojo */
    text-decoration: none !important; /* Sin subrayado dentro del submenú */
}
/* --- Botón de Contacto (Último elemento) --- */
.navegacion-principal ul > li:last-child > a {
    background-color: #ffffff !important;
    color: var(--color-usal-rojo) !important;
    border-radius: 4px;
    padding: 10px 20px !important;
    margin-left: 10px;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: 1px solid #ffffff;
    white-space: nowrap !important;
    text-decoration: none !important;
}

.navegacion-principal ul > li:last-child > a:hover {
    background-color: #f9f9f9 !important;
    color: var(--color-usal-oscuro) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

/* --- Móviles (Botón menú) --- */
.boton-menu-movil {
    display: none;
    background-color: var(--color-usal-oscuro);
    color: white;
    border: none;
    padding: 15px 20px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    text-align: center;
}

@media (max-width: 1024px) {
    .boton-menu-movil { display: block; }
    .navegacion-principal { display: none; width: 100%; }
    .navegacion-principal.activo { display: block; }
    
    .navegacion-principal div > ul, 
    .navegacion-principal ul {
        flex-direction: column !important;
        align-items: stretch;
        gap: 0;
    }
    
    .navegacion-principal > div > ul > li > a,
    .navegacion-principal > ul > li > a {
        text-align: left;
        border-bottom: 1px solid rgba(255,255,255,0.2);
        white-space: normal;
        padding: 15px 20px;
    }
    
    .navegacion-principal ul ul {
        position: static;
        box-shadow: none;
        display: flex !important;
        border-bottom: none;
        padding: 0 !important;
    }
    
    .navegacion-principal ul ul a {
        padding-left: 40px !important;
        border-bottom: 1px solid rgba(255,255,255,0.05) !important;
        color: #ffffff !important;
    }
    
    .navegacion-principal ul ul a:hover {
        padding-left: 40px !important;
        color: #ffffff !important;
        text-decoration: underline;
    }
    
    .navegacion-principal ul > li:last-child > a {
        margin: 15px !important;
        text-align: center;
        display: block;
        white-space: normal !important;
        transform: none !important;
        color: var(--color-usal-rojo) !important;
    }
}

/* ==========================================================================
   3. ACORDEONES
   ========================================================================== */
.acordeon {
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    background: #fff;
    transition: all 0.3s ease;
}

.acordeon[open] {
    border-color: var(--color-usal);
    box-shadow: 0 2px 8px rgba(156, 0, 6, 0.1);
}

.acordeon summary {
    font-weight: 600;
    font-size: 1.1rem;
    padding: 18px 20px;
    cursor: pointer;
    background-color: #fcfcfc;
    list-style: none;
    position: relative;
}

.acordeon summary::after {
    content: "+";
    position: absolute;
    right: 20px;
    font-size: 1.5rem;
    color: var(--color-usal);
    transition: transform 0.3s;
}

.acordeon[open] summary::after { content: "−"; }
.acordeon summary:hover { background-color: #f5f5f5; }

.contenido-acordeon {
    padding: 0 20px 20px 20px;
    border-top: 1px solid var(--color-borde);
    margin-top: 10px;
    padding-top: 15px;
}

/* ==========================================================================
   4. BOTONES Y TARJETAS GLOBALES
   ========================================================================== */
.btn-primario {
    display: inline-block;
    background-color: var(--color-usal);
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    margin-top: 15px;
}
.btn-primario:hover { background-color: #7a0005; }

.contenedor-curso {
    max-width: 1200px;
    margin: 0 auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

/* ==========================================================================
   5. LANDING Y PORTADA
   ========================================================================== */
.contenedor-landing {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.seccion-landing { margin-bottom: 70px; }

.titulo-seccion {
    color: var(--color-usal);
    font-size: 2rem;
    text-align: center;
    margin-bottom: 10px;
    position: relative;
    padding-bottom: 10px;
}

.titulo-seccion::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--color-usal);
}

.introduccion-seccion {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Grid de Accesos */
.grid-accesos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.caja-acceso {
    background: #ffffff;
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    padding: 25px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--color-texto);
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
    transition: all 0.3s ease;
}

.caja-acceso:hover {
    transform: translateY(-5px);
    border-color: var(--color-usal);
    box-shadow: 0 10px 20px rgba(156,0,6,0.08);
}

.icono-acceso {
    font-size: 2rem;
    display: block;
    margin-bottom: 15px;
}

/* ==========================================================================
   HERO / PORTADA SENCILLA (Fondo Blanco)
   ========================================================================== */
.hero-portada {
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    background-color: #ffffff; /* Fondo totalmente blanco */
    text-align: center;
    padding: 90px 20px;
    margin-top: 0;
    margin-bottom: 50px;
    box-sizing: border-box;
    border-bottom: 1px solid var(--color-borde); /* Línea sutil separadora */
}

.hero-portada h1 {
    font-size: 3.2rem; /* Un pelín más grande para que impacte más sobre blanco */
    margin: 0 0 15px 0;
    color: var(--color-usal-rojo); /* Título en el Rojo USAL */
    font-weight: bold;
    letter-spacing: -0.5px;
}

.hero-portada p {
    font-size: 1.25rem;
    margin: 0;
    color: #555555; /* Subtítulo en gris oscuro elegante */
    font-weight: normal;
}

/* Adaptación para móviles */
@media (max-width: 768px) {
    .hero-portada {
        padding: 60px 20px;
    }
    .hero-portada h1 {
        font-size: 2.2rem;
    }
    .hero-portada p {
        font-size: 1.05rem;
    }
}

/* Adaptación para móviles */
@media (max-width: 768px) {
    .hero-portada {
        padding: 60px 20px;
    }
    .hero-portada h1 {
        font-size: 2.2rem;
    }
    .hero-portada p {
        font-size: 1.05rem;
    }
}

/* ==========================================================================
   6. NOTICIAS
   ========================================================================== */
.contenedor-noticias {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

.grid-noticias-landing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.tarjeta-noticia, .tarjeta-noticia-landing {
    background: #ffffff;
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
    display: flex;
    flex-direction: column;
}

.fecha-noticia, .fecha-noticia-landing {
    font-size: 0.8rem;
    color: #999;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tarjeta-noticia h2 a, .tarjeta-noticia-landing h3 a {
    color: var(--color-texto);
    text-decoration: none;
}

.tarjeta-noticia h2 a:hover, .tarjeta-noticia-landing h3 a:hover {
    color: var(--color-usal);
}

.extracto-noticia-landing {
    color: #555;
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.leer-mas-landing, .enlace-leer-mas {
    color: var(--color-usal);
    text-decoration: none;
    font-weight: bold;
    font-size: 0.95rem;
}

.leer-mas-landing:hover, .enlace-leer-mas:hover {
    text-decoration: underline;
}

/* ==========================================================================
   7. PIE DE PÁGINA
   ========================================================================== */
.pie-pagina {
    background-color: var(--color-usal);
    color: #ffffff;
    text-align: center;
    padding: 50px 20px;
    margin-top: 60px;
}

.pie-pagina p { margin: 5px 0; }
.pie-pagina a { color: #ffffff; text-decoration: underline; }