@media (max-width: 767px) {
    /* Основной текст */
    body, p, li, span, label, small, .t-descr, .t-text, .t-typography__p, .t-typography__li,
    .t-store__prod-text, .t-store__prod-name, .t-store__prod-title {
        font-size: 16px !important;
        line-height: 1.45 !important;
    }

    /* Заголовки */
    h1, .t-title {
        font-size: 24px !important;
    }
    h2, .t-subtitle {
        font-size: 20px !important;
    }

    /* Кнопки */
    button, .t-btn, .t-submit {
        font-size: 16px !important;
    }
}