.catalog-page {
    width: min(1120px, calc(100% - 32px));
    margin: 44px auto 0;
}

.catalog-section {
    margin-top: 34px;
}

.pdf-feature {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 22px;
    padding: 24px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: linear-gradient(135deg, #ffffff 0%, #e9f4f2 100%);
    box-shadow: var(--shadow);
}

.pdf-feature h2 {
    margin: 8px 0;
    color: var(--primary-dark);
    font-size: clamp(1.7rem, 4vw, 2.5rem);
}

.pdf-feature p {
    max-width: 640px;
    margin: 0;
    color: var(--muted-color);
    line-height: 1.55;
}

.catalog-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.pdf-viewer {
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: var(--shadow);
}

.pdf-viewer object {
    width: 100%;
    height: min(82vh, 920px);
    min-height: 620px;
    display: block;
}

.category-heading {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.category-heading i {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--soft-color);
    color: var(--primary-color);
    font-size: 1.4rem;
}

.category-heading h2 {
    margin: 0;
    color: var(--primary-dark);
}

.category-heading p {
    margin: 4px 0 0;
    color: var(--muted-color);
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.catalog-card {
    min-height: 210px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 22px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--surface-color);
}

.catalog-card h3 {
    margin: 0;
    color: var(--primary-dark);
}

.catalog-card p {
    flex: 1;
    margin: 0;
    color: var(--muted-color);
    line-height: 1.55;
}

@media (max-width: 860px) {
    .pdf-feature {
        align-items: flex-start;
        flex-direction: column;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
    }

    .pdf-viewer object {
        min-height: 520px;
    }
}

@media (max-width: 620px) {
    .catalog-page {
        width: min(100% - 24px, 1120px);
        margin-top: 28px;
    }

    .catalog-section {
        margin-top: 28px;
    }

    .pdf-feature {
        gap: 18px;
        padding: 18px;
    }

    .pdf-feature h2 {
        font-size: clamp(1.55rem, 7vw, 2rem);
    }

    .catalog-actions {
        width: 100%;
        display: grid;
        gap: 10px;
    }

    .catalog-actions .btn {
        width: 100%;
    }

    .category-heading {
        align-items: flex-start;
        gap: 12px;
    }

    .category-heading i {
        width: 46px;
        min-width: 46px;
        height: 46px;
        font-size: 1.2rem;
    }

    .category-heading h2 {
        font-size: 1.35rem;
        line-height: 1.18;
    }

    .category-heading p {
        line-height: 1.45;
    }

    .catalog-grid {
        gap: 12px;
    }

    .catalog-card {
        min-height: 0;
        padding: 18px;
    }

    .catalog-card .btn {
        width: 100%;
    }

    .pdf-viewer object {
        min-height: 440px;
    }
}

@media (max-width: 430px) {
    .catalog-page {
        width: min(100% - 20px, 1120px);
        margin-top: 24px;
    }

    .pdf-feature,
    .catalog-card {
        padding: 16px;
    }

    .category-heading {
        flex-direction: column;
    }

    .pdf-viewer object {
        min-height: 380px;
    }
}