/* El PDF se imprime desde el mismo HTML para evitar mantener dos diseños. */
@page {
    size: A4 landscape;
    margin: 10mm;
}

@media print {
    html,
    body {
        background: #eef1f0 !important;
        print-color-adjust: exact !important;
        -webkit-print-color-adjust: exact !important;
    }

    #preloader,
    .s-header,
    .s-footer,
    .course-book__actions {
        display: none !important;
    }

    .course-book {
        background: #eef1f0 !important;
    }

    .course-book__hero {
        min-height: 185mm;
        display: flex;
        align-items: center;
        padding: 12mm 0 !important;
        break-after: page;
        page-break-after: always;
    }

    .course-book__hero .row {
        width: 92%;
        max-width: none;
    }

    .course-book__hero h1 {
        font-size: 38pt;
    }

    .book-sheet {
        min-height: 0;
        height: 175mm;
        display: flex;
        align-items: center;
        overflow: hidden;
        padding: 0 !important;
        break-after: page;
        page-break-after: always;
    }

    .book-sheet:last-child {
        min-height: 0;
        height: 175mm;
        overflow: hidden;
        padding-top: 0 !important;
        padding-bottom: 0 !important;
        break-after: auto;
        page-break-after: auto;
    }

    .book-page {
        width: 132%;
        max-width: none;
        grid-template-columns: 48mm minmax(0, 1fr);
        gap: 10mm;
        padding: 10mm;
        zoom: 0.70;
        box-shadow: 0 4mm 10mm rgba(0, 0, 0, 0.08);
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .book-page__content h2 {
        font-size: 25pt;
    }

    .book-learning-grid {
        gap: 5mm;
        margin: 5mm 0;
    }

    .book-figure {
        margin-top: 5mm;
    }

    .book-figure--wide img {
        max-height: 70mm;
    }

    .book-figure-grid .book-figure {
        margin-top: 0;
    }

    .book-figure-grid .book-figure img {
        height: 45mm;
    }

    .project-parameter-table,
    .project-warning,
    .book-task,
    .book-code-card,
    .book-references {
        margin-top: 3mm;
        margin-bottom: 3mm;
    }
}

.project-equation .math-fraction {
    display: inline-flex;
    flex-direction: column;
    vertical-align: middle;
    line-height: 1.05;
    text-align: center;
}

.project-equation .math-fraction > span:first-child {
    border-bottom: 1px solid currentColor;
    padding: 0 .25em .08em;
}

.project-equation .math-fraction > span:last-child {
    padding: .08em .25em 0;
}

.hvt-display-equation {
    overflow-x: auto;
}

.hvt-display-equation .math-display {
    display: block;
    width: 100%;
    font-size: clamp(2.2rem, 3vw, 3.8rem);
    line-height: 1.65;
    text-align: center;
    white-space: nowrap;
}

.hvt-display-equation math[display="block"] {
    display: block;
    width: max-content;
    min-width: 100%;
    margin: 0 auto;
    font-size: 1em;
    text-align: center;
}

.hvt-display-equation > p {
    margin: .8rem 0 0;
    color: var(--color-text-light);
    font-family: var(--font-1);
    font-size: var(--text-xs);
    font-style: normal;
    text-align: center;
}

@media screen and (max-width: 600px) {
    .hvt-display-equation .math-display {
        font-size: 2.1rem;
    }
}