.tzl-product-brief,
.tzl-product-detail {
    --tzl-ink: #0a0a0a;
    --tzl-paper: #ffffff;
    --tzl-red: #e1391b;
    color: var(--tzl-ink);
    font-family: Archivo, Arial, sans-serif;
}

/* Keep the two reading-product summaries aligned with the flat brand system. */
.single-product .summary .price,
.single-product .summary .price ins {
    color: #e1391b;
    font-family: Archivo, Arial, sans-serif;
    font-size: 1.35rem;
    font-weight: 800;
    text-decoration: none;
}

.single-product .summary .price del {
    color: #5c5c5c;
    font-size: .86em;
    font-weight: 500;
    opacity: 1;
}

.single-product form.cart .tzl-buy-now-button.button,
.single-product form.cart .single_add_to_cart_button.button {
    border-radius: 0;
    box-shadow: none;
    display: block;
    font-family: Archivo, Arial, sans-serif;
    font-weight: 800;
    letter-spacing: .01em;
    margin: .65rem 0 0;
    padding: .75em 1.1em;
    width: 100%;
}

.single-product form.cart .tzl-buy-now-button.button {
    background-color: #e1391b !important;
    border: 2px solid #e1391b !important;
    color: #ffffff !important;
}

.single-product form.cart .tzl-buy-now-button.button:hover,
.single-product form.cart .tzl-buy-now-button.button:focus {
    background-color: #0a0a0a !important;
    border-color: #0a0a0a !important;
    color: #ffffff !important;
}

.single-product form.cart .tzl-buy-now-button.button:focus-visible,
.single-product form.cart .single_add_to_cart_button.button:focus-visible {
    outline: 3px solid #0a0a0a;
    outline-offset: 3px;
}

.single-product form.cart .single_add_to_cart_button.button {
    background-color: #ffffff !important;
    border: 2px solid #0a0a0a !important;
    color: #0a0a0a !important;
}

.single-product form.cart .single_add_to_cart_button.button:hover,
.single-product form.cart .single_add_to_cart_button.button:focus {
    background-color: #f4f4f4 !important;
    border-color: #0a0a0a !important;
    color: #0a0a0a !important;
}

.single-product.woocommerce span.onsale {
    background: #e1391b;
    border-radius: 0;
    color: #ffffff;
    font-family: "Spline Sans Mono", Consolas, monospace;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
    line-height: 1;
    min-height: 0;
    min-width: 0;
    padding: .7rem .75rem;
    text-transform: uppercase;
}

.tzl-product-brief {
    border-block: 2px solid var(--tzl-ink);
    margin: 1.25rem 0;
    padding: 1rem 0;
}

.tzl-product-brief__lead {
    font-size: 1.05rem;
    line-height: 1.65;
    margin: 0 0 1rem;
}

.tzl-product-brief__facts,
.tzl-product-detail__grid,
.tzl-product-detail__steps,
.tzl-product-detail__audit {
    display: grid;
    gap: 1px;
    list-style: none;
    margin: 0;
    padding: 1px;
    background: var(--tzl-ink);
}

.tzl-product-brief__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tzl-product-brief__facts li,
.tzl-product-detail__card,
.tzl-product-detail__step,
.tzl-product-detail__audit li {
    background: var(--tzl-paper);
    margin: 0;
    padding: 1rem;
}

.tzl-product-brief__facts strong,
.tzl-product-detail__kicker,
.tzl-product-detail__label,
.tzl-product-detail__step-number {
    color: var(--tzl-red);
    display: block;
    font-family: "Spline Sans Mono", Consolas, monospace;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
    margin-bottom: .35rem;
    text-transform: uppercase;
}

.tzl-product-brief__fineprint {
    border-left: 4px solid var(--tzl-red);
    font-size: .9rem;
    line-height: 1.55;
    margin: 1rem 0 0;
    padding-left: .85rem;
}

.tzl-product-detail {
    margin: 0 auto;
    max-width: 980px;
}

.tzl-product-detail h2,
.tzl-product-detail h3 {
    color: var(--tzl-ink);
    font-family: Archivo, Arial, sans-serif;
    font-weight: 800;
    line-height: 1.08;
}

.tzl-product-detail h2 {
    border-top: 5px solid var(--tzl-red);
    font-size: clamp(1.65rem, 4vw, 2.65rem);
    margin: 3rem 0 1rem;
    padding-top: .65rem;
}

.tzl-product-detail h3 {
    font-size: 1.1rem;
    margin: 0 0 .55rem;
}

.tzl-product-detail p,
.tzl-product-detail li {
    font-size: 1rem;
    line-height: 1.72;
}

.tzl-product-detail__hero {
    border: 2px solid var(--tzl-ink);
    padding: clamp(1.25rem, 4vw, 2.5rem);
    position: relative;
}

.tzl-product-detail__hero::after {
    color: var(--tzl-red);
    content: "解";
    font-family: "Noto Sans SC", sans-serif;
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 900;
    line-height: 1;
    opacity: .08;
    position: absolute;
    right: .7rem;
    top: .35rem;
}

.tzl-product-detail__hero > * {
    max-width: 760px;
    position: relative;
    z-index: 1;
}

.tzl-product-detail__hero h2 {
    border: 0;
    margin: 0 0 .8rem;
    padding: 0;
}

.tzl-product-detail__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tzl-product-detail__steps {
    counter-reset: tzl-step;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tzl-product-detail__step {
    counter-increment: tzl-step;
}

.tzl-product-detail__step-number::before {
    content: "0" counter(tzl-step);
}

.tzl-product-detail__audit {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tzl-product-detail__audit strong {
    color: var(--tzl-red);
    display: block;
    margin-bottom: .35rem;
}

.tzl-product-detail__note {
    border: 2px solid var(--tzl-ink);
    border-left: 8px solid var(--tzl-red);
    margin: 1.25rem 0;
    padding: 1rem 1.15rem;
}

.single-product form.cart .tzl-reading-fields {
    border: 2px solid #0a0a0a;
    margin: 1.25rem 0;
    padding: 1rem;
}

.single-product form.cart .tzl-reading-fields__legend {
    color: #0a0a0a;
    font-family: Archivo, Arial, sans-serif;
    font-size: 1.1rem;
    font-weight: 800;
    padding: 0 .35rem;
}

.single-product form.cart .tzl-reading-fields__hint {
    font-size: .9rem;
    line-height: 1.55;
    margin: .45rem 0 1rem;
}

.single-product form.cart .tzl-reading-fields__grid {
    display: grid;
    gap: .85rem 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.single-product form.cart .tzl-reading-field {
    margin: 0;
}

.single-product form.cart .tzl-reading-field label {
    color: #0a0a0a;
    display: block;
    font-family: "Spline Sans Mono", Consolas, monospace;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .06em;
    margin-bottom: .35rem;
    text-transform: uppercase;
}

.single-product form.cart .tzl-reading-field__input {
    background: #ffffff;
    border: 2px solid #0a0a0a;
    border-radius: 0;
    box-sizing: border-box;
    color: #0a0a0a;
    font-family: Archivo, Arial, sans-serif;
    min-height: 2.8rem;
    padding: .6rem .7rem;
    width: 100%;
}

.single-product form.cart .tzl-reading-field__input:focus {
    border-color: #e1391b;
    box-shadow: 0 0 0 1px #e1391b;
    outline: 0;
}

.tzl-product-detail a {
    color: var(--tzl-red);
    font-weight: 700;
    text-decoration-thickness: 2px;
    text-underline-offset: .15em;
}

@media (max-width: 780px) {
    .single-product form.cart .tzl-reading-fields__grid {
        grid-template-columns: 1fr;
    }

    .tzl-product-brief__facts,
    .tzl-product-detail__grid,
    .tzl-product-detail__steps,
    .tzl-product-detail__audit {
        grid-template-columns: 1fr;
    }

    .tzl-product-detail h2 {
        margin-top: 2.25rem;
    }

    .tzl-product-detail__hero {
        padding: 1.15rem;
    }
}

@media (max-width: 480px) {
    /* The floating language switcher otherwise sits over the wordmark. */
    .single-product .site-header .site-branding {
        display: none;
    }

    .single-product .trp-language-switcher {
        --border-radius: 0;
        position: absolute !important;
    }

    .single-product #tzl-global-toggle {
        position: absolute !important;
    }
}