/* Índice automático de la entrada con el estilo del índice del aviso legal.
   Lateral (derecha o izquierda) en pantallas de más de 1280px; por debajo, bloque plegable antes del texto.
   La variante --bloque va donde esté el módulo Índice. */
.blog-read {
    box-sizing: border-box;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 230px;
    column-gap: clamp(16px, 2vw, 28px);
    align-items: start;
    width: min(100%, 1120px);
    margin: 0 auto;
    padding-right: clamp(14px, 2.4vw, 28px);
}

.blog-read__main {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
}

.blog-read--izquierda {
    grid-template-columns: 230px minmax(0, 1fr);
    padding-right: 0;
    padding-left: clamp(14px, 2.4vw, 28px);
}

.blog-read--izquierda .blog-read__main {
    grid-column: 2;
}

.blog-read h2[id],
.blog-read h3[id] {
    scroll-margin-top: 104px;
}

.blog-toc {
    box-sizing: border-box;
    font-family: Urbanist, Arial, sans-serif;
}

.blog-read .blog-toc {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 104px;
    max-height: calc(100vh - 128px);
    margin-top: clamp(34px, 4.8vw, 56px);
    padding-left: 10px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 64, 82, .2) transparent;
}

.blog-read--izquierda .blog-toc {
    grid-column: 1;
}

.blog-read .blog-toc::-webkit-scrollbar { width: 6px; }
.blog-read .blog-toc::-webkit-scrollbar-track { background: transparent; }
.blog-read .blog-toc::-webkit-scrollbar-thumb { background: rgba(0, 64, 82, .2); border-radius: 3px; }

.blog-toc__box {
    margin: 0;
}

.blog-toc__title {
    display: block;
    margin: 0 0 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid #d4e0e1;
    color: #003d4f;
    font-size: .95rem;
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -.005em;
    list-style: none;
    cursor: default;
}

.blog-toc__title::-webkit-details-marker { display: none; }
.blog-toc__title::marker { content: ""; }

.blog-toc__list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: .85rem;
    line-height: 1.4;
}

.blog-toc__list a {
    display: block;
    margin-left: -10px;
    padding: 5px 10px;
    border-left: 2px solid transparent;
    border-radius: 0 4px 4px 0;
    color: #5a6b6e;
    font-weight: 500;
    text-decoration: none;
    transition: color 240ms ease, border-color 240ms ease, background-color 240ms ease;
}

.blog-toc__list .is-sub a {
    padding-left: 24px;
    font-size: .8rem;
}

.blog-toc__list a:hover {
    color: #00556d;
    border-left-color: #00556d;
    background: rgba(0, 64, 82, .04);
}

.blog-toc__list a.is-active {
    color: #003d4f;
    font-weight: 800;
    border-left-color: #00556d;
    background: rgba(0, 64, 82, .06);
}

.blog-toc__list a:focus-visible {
    outline: 2px solid #00556d;
    outline-offset: 2px;
}

.blog-toc--bloque {
    width: min(100%, 1120px);
    margin: clamp(10px, 2vw, 24px) auto;
    padding: 0 clamp(14px, 2.4vw, 28px);
}

.blog-toc--bloque .blog-toc__box {
    max-width: 720px;
    padding: 16px 20px 14px;
    border: 1px solid #d4e0e1;
    border-radius: 14px;
    background: #fff;
}

@media (min-width: 1281px) {
    .blog-toc__title { pointer-events: none; }
}

@media (max-width: 1280px) {
    .blog-read,
    .blog-read--izquierda {
        display: block;
        padding: 0;
    }

    .blog-read .blog-toc {
        position: static;
        max-height: none;
        margin: clamp(34px, 4.8vw, 56px) clamp(14px, 2.4vw, 28px) 0;
        padding: 0;
        overflow: visible;
    }

    .blog-toc .blog-toc__box {
        padding: 14px 18px;
        border: 1px solid #d4e0e1;
        border-radius: 14px;
        background: #fff;
    }

    .blog-toc__title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        margin: 0;
        padding: 0;
        border-bottom: 0;
        cursor: pointer;
    }

    .blog-toc__title::after {
        content: "";
        flex: none;
        width: 8px;
        height: 8px;
        border-right: 2px solid #00556d;
        border-bottom: 2px solid #00556d;
        transform: translateY(-3px) rotate(45deg);
        transition: transform 240ms ease;
    }

    .blog-toc__box[open] .blog-toc__title {
        margin-bottom: 10px;
        padding-bottom: 10px;
        border-bottom: 1px solid #d4e0e1;
    }

    .blog-toc__box[open] .blog-toc__title::after {
        transform: translateY(2px) rotate(-135deg);
    }

    .blog-toc__list a {
        margin-left: 0;
        padding: 7px 10px;
        font-size: .9rem;
    }

    .blog-toc__list .is-sub a {
        padding-left: 26px;
        font-size: .85rem;
    }
}

@media (max-width: 640px) {
    .blog-read .blog-toc { margin-left: 7%; margin-right: 7%; }
    .blog-toc--bloque { padding-left: 7%; padding-right: 7%; }
}

@media (max-width: 420px) {
    .blog-read .blog-toc { margin-left: 12px; margin-right: 12px; }
    .blog-toc--bloque { padding-left: 12px; padding-right: 12px; }
}

@media (prefers-reduced-motion: reduce) {
    .blog-toc__list a,
    .blog-toc__title::after { transition: none; }
}