/* ======================================================
    ESTILOS PÁGINA DE SERVICIOS (TARJETAS EXPANDIBLES) - v3
    ====================================================== */

/* --- Hero Section (sin cambios) --- */
.services-hero { position: relative; padding: calc(var(--header-height-mobile) + var(--spacing-l)) var(--spacing-s) var(--spacing-l); background-image: linear-gradient(135deg, #273a50, #6d95c2); /* Gradiente con más contraste */ text-align: center; color: var(--color-text-wt); border-bottom: 2px solid var(--color-accent); }
.services-hero__overlay { position: absolute; inset: 0; background-color: rgba(0, 0, 0, 0.6); z-index: 1; }
/* ... (resto de estilos del hero) ... */
.services-hero__container { position: relative; z-index: 2; max-width: var(--max-width); margin: 0 auto; }
.services-hero__title { font-family: var(--font-primary); font-size: clamp(2.5rem, 1.5rem + 5vw, 4rem); font-weight: 500; margin: 0 0 var(--spacing-s) 0; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }
.services-hero__subtitle { font-family: var(--font-secondary); font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem); font-weight: 400; max-width: 65ch; margin: 0 auto; opacity: 0.9; text-shadow: 0 1px 3px rgba(0,0,0,0.5); line-height: 1.4; }
.services-hero--divider { margin-top: var(--spacing-m); margin-bottom: 0; }
.services-hero--divider .divider--line { background-color: rgba(255,255,255,0.5); }
.services-hero--divider .divider--line::before { background-color: var(--color-accent); }

/* --- Contenedor de Tarjetas y Estilo Base de Tarjeta (sin cambios) --- */
.service-cards__container { max-width: var(--max-width); margin: 0 auto; padding: var(--spacing-l) var(--spacing-s); display: block; }
.service-card { background-color: #f9f9f9; border-radius: 8px; box-shadow: var(--shadow-elevation-low); overflow: hidden; transition: box-shadow 0.3s ease; border: 1px solid #eee; margin-bottom: var(--spacing-l); }
.service-card:last-child { margin-bottom: 0; }
.service-card:hover { box-shadow: var(--shadow-elevation-medium); }

/* --- Contenido Visible y Medios (sin cambios) --- */
.service-card__visible { display: flex; flex-direction: column; gap: var(--spacing-m); padding: var(--spacing-m); cursor: pointer; }
.service-card__image-container { width: 100%; height: 250px; border-radius: 6px; overflow: hidden; position: relative; }
.service-card__image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: opacity 0.5s ease-in-out, transform 0.4s ease; }
.service-card__image.img-base { opacity: 1; }
.service-card__image.img-alt { opacity: 0; }
.service-card.is-active .service-card__image.img-base { opacity: 0; }
.service-card.is-active .service-card__image.img-alt { opacity: 1; }
.service-card:hover .service-card__image-container .service-card__image { transform: scale(1.05); }
.service-card__summary { display: flex; flex-direction: column; justify-content: space-between; width: 100%; }
.service-card__title { font-family: var(--font-primary); font-size: clamp(1.8rem, 1.5rem + 1.5vw, 2.5rem); font-weight: 500; color: var(--color-text); margin: 0 0 var(--spacing-s) 0; }
.service-card__description { font-family: var(--font-secondary); font-size: clamp(1rem, 0.95rem + 0.25vw, 1.1rem); line-height: 1.7; color: var(--neutral-color-dark, #333); margin: 0 0 var(--spacing-m) 0; flex-grow: 1; }
.service-card__toggle { display: inline-flex; align-items: center; gap: var(--spacing-s); padding: var(--spacing-s) var(--spacing-m); font-family: var(--font-primary); font-size: 1.1rem; font-weight: 500; color: var(--color-accent); background-color: transparent; border: 2px solid var(--color-accent); border-radius: 4px; cursor: pointer; transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease; align-self: flex-start; }

/* Hover solo en dispositivos que lo soporten (no móviles) */
@media (hover: hover) {
    .service-card__toggle:hover { 
        background-color: var(--color-accent); 
        color: var(--color-text-wt); 
        transform: translateY(-2px); 
    }
}

.service-card__toggle i { transition: all 0.3s ease; }

/* === CAMBIO CLAVE: Animación del contenedor expandible con CSS Grid === */
.service-card__expanded-content {
    display: grid;
    grid-template-rows: 0fr; /* Inicia colapsado */
    transition: grid-template-rows 0.4s ease-in-out;
}
.expanded-content__wrapper {
    overflow: hidden; /* Oculta el contenido mientras la fila de grid se anima */
    padding: 0 var(--spacing-m);
    border-top: 1px solid #ddd;
    transition: padding 0.4s ease-in-out;
}
.service-card.is-active .service-card__expanded-content {
    grid-template-rows: 1fr; /* Se expande para ajustarse al contenido */
}
.service-card.is-active .expanded-content__wrapper {
    padding-top: var(--spacing-m);
    padding-bottom: var(--spacing-m);
}
.service-card.is-active .service-card__toggle { background-color: var(--color-accent); color: var(--color-text-wt); }
.service-card.is-active .service-card__toggle i { transform: rotate(135deg); }

/* --- Estilos Contenido Expandido (sin cambios) --- */
.expanded-content__wrapper h3, .expanded-content__wrapper h4, .expanded-content__wrapper p, .expanded-content__wrapper ul { max-width: 75ch; }
.expanded-content__wrapper h3 { font-size: clamp(1.4rem, 1.2rem + 1vw, 1.8rem); color: var(--color-accent); margin: var(--spacing-m) 0; }
.expanded-content__wrapper h4 { font-size: clamp(1.2rem, 1.1rem + 0.5vw, 1.4rem); margin: var(--spacing-m) 0 var(--spacing-s) 0; }
.expanded-content__wrapper p { line-height: 1.8; margin: 0 0 var(--spacing-m) 0; }
.expanded-content__wrapper ul { list-style: none; padding: 0; margin: 0 0 var(--spacing-m) 0; }
.expanded-content__wrapper li { line-height: 1.8; padding-left: var(--spacing-m); position: relative; margin-bottom: var(--spacing-s); }
.expanded-content__wrapper li::before { content: "•"; position: absolute; left: 0; color: var(--color-accent); font-size: 1.5em; line-height: 1; }

/* --- Media Queries (sin cambios) --- */
@media (min-width: 768px) {
    .service-card__visible { flex-direction: row; align-items: center; }
    .service-card__image-container { flex: 0 0 300px; height: 300px; }
    .service-card--reversed .service-card__visible { flex-direction: row-reverse; }
}
@media (min-width: 1024px) {
    .service-card__image-container { flex: 0 0 400px; height: 350px; }
    .service-card__summary { padding: 0 var(--spacing-l); }
    .service-card--reversed .service-card__summary { padding: 0 var(--spacing-l); }
}

/* --- Estilos para Vídeo en Cabecera (sin cambios) --- */
.service-card__image-container:has(iframe) { height: auto; aspect-ratio: 16 / 9; background-color: #000; }
.service-card__image-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

/* === NUEVO: Estilos para la sub-sección con vídeo === */
.expanded-content__divider { height: 1px; width: 80%; margin: var(--spacing-l) auto; border: none; background-color: #ddd; }
.sub-service-intro { font-style: italic; color: var(--neutral-color-dark, #333); background-color: #f0f0f0; padding: var(--spacing-s); border-left: 3px solid var(--color-accent); margin-bottom: var(--spacing-m) !important; border-radius: 4px; }

/* Layout de la sub-sección */
.sub-service__layout {
    display: flex;
    flex-direction: column; /* Apilado en móvil por defecto */
    gap: var(--spacing-l);
    margin-top: var(--spacing-l);
}
.sub-service__text { flex: 1.5; }
.sub-service__media { flex: 1; }
@media (min-width: 1024px) {
    .sub-service__layout { flex-direction: row; } /* Lado a lado en desktop */
}

/* Contenedor del vídeo dentro de la sub-sección */
.sub-service__media .frame__container {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 9 / 16;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #ddd;
    box-shadow: var(--shadow-elevation-low);
}
.sub-service__media .video-frame {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

@media only screen and (min-width: 768px) {
    .services-hero {
        padding: calc(var(--header-height-tablet) + var(--spacing-l)) var(--spacing-l) var(--spacing-l);
    }
}

@media only screen and (min-width: 1024px) {
    .services-hero {
        padding-top: calc(var(--header-height-desktop) + var(--spacing-l));
    }
}

/* --- Call to Action Button --- */
.cta-button {
    display: inline-block;
    background-color: transparent;
    color: var(--color-accent);
    padding: var(--spacing-s) var(--spacing-m);
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.2rem;
    text-align: center;
    margin-top: var(--spacing-m);
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
    background-color: var(--color-accent);
    color: var(--color-text-wt);
    transform: translateY(-4px);
}