/* Riff & Keys — editorial storefront. All colors inherit the Global Styles palette. */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; height: auto; }
figure { margin: 0; }
a { text-underline-offset: .22em; }
button, input, select, textarea { font:inherit; }
button, input[type="submit"] { cursor: pointer; }
input, select, textarea { max-width: 100%; border-radius: 0; }
:where(a, button, input, select, textarea, summary):focus-visible { outline: 3px solid currentColor; outline-offset: 4px; }
::selection { background: var(--wp--preset--color--acid); color: var(--wp--preset--color--ink); }
.wp-site-blocks { padding: 0; }
.wp-site-blocks > * { margin-block-start: 0; }
.wp-block-template-part { margin: 0; }
.rk-main { margin: 0; min-width: 0; }
.rk-main > * { margin-block-start: 0; }
.rk-micro, .rk-eyebrow, .rk-announcement, .rk-product-category, .rk-category-strip, .rk-filter-heading { font-size: 0.875rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600; }
.rk-eyebrow { margin-block: 0 1.25rem; }
.rk-topbar { background: var(--wp--preset--color--ink); color: var(--wp--preset--color--paper); padding: .6rem 2rem; text-align: center; }
.rk-announcement { margin: 0; font-size: 0.875rem; letter-spacing: .18em; }
.rk-header-inner { padding: 1.6rem clamp(1.25rem, 3.2vw, 3.5rem); border-bottom: 1px solid var(--wp--preset--color--line); gap: 2rem; }
.rk-header-inner .wp-block-site-title { text-transform: uppercase; letter-spacing: -.03em; margin: 0; }
.rk-header-inner .wp-block-navigation { margin: 0 auto; }
.rk-header-inner .wp-block-navigation__container { gap: 2rem; }
.rk-header-tools { display: flex; align-items: center; gap: 1.5rem; margin: 0; }
.rk-header-search { width: 195px; margin: 0; }
.rk-header-search .wp-block-search__inside-wrapper { border-bottom: 1px solid var(--wp--preset--color--line); }
.rk-header-search .wp-block-search__input { width: 100%; min-width: 0; border: 0; background: transparent; padding: .5rem 0; font-size: 0.875rem; }
.rk-header-search .wp-block-search__button { border: 0; padding: .25rem; background: transparent; color: inherit; margin: 0; }
.rk-hero.wp-block-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 0; }
.rk-hero .wp-block-column { min-width: 0; margin: 0; display: flex; }
.rk-hero-copy { width: 100%; background: var(--wp--preset--color--ink); color: var(--wp--preset--color--paper); padding: clamp(2rem, 4.5vw, 5rem) clamp(1.25rem, 4vw, 4rem); display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.rk-hero-title { color: var(--wp--preset--color--acid); font-size: clamp(4.5rem, 7.8vw, 9rem); text-transform: uppercase; line-height: 1.02; margin: .3rem 0 1.5rem; letter-spacing: -.035em; }
.rk-hero-intro { max-width: 31rem; font-size: 1.0625rem; line-height: 1.6; opacity: .86; margin: 0 0 1.7rem; }
.rk-hero-image { width: 100%; height: 100%; min-height: 540px; margin: 0; }
.rk-hero-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.rk-hero .wp-block-buttons { margin: 0; }
.rk-category-strip { padding: 1.1rem clamp(1.25rem, 4vw, 4rem); background: var(--wp--preset--color--acid); color: var(--wp--preset--color--ink); gap: 1rem; }
.rk-category-strip p { margin: 0; }
.rk-category-strip a { display: block; padding: .4rem 0; text-decoration: none; }
.rk-category-strip a:hover { text-decoration: underline; }
.rk-section { padding: clamp(2.5rem, 4vw, 4.5rem) clamp(1.25rem, 3.2vw, 3.5rem); }
.rk-section-heading { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 2rem; margin-bottom: 2rem; }
.rk-section-heading h2 { margin: 0; font-size: clamp(2.5rem, 4vw, 4rem); }
.rk-section-heading .wp-block-buttons { margin: 0 0 0 auto; }
.rk-subtitle { margin: 0; color: var(--wp--preset--color--muted); font-size: 1rem; }
.rk-button-text .wp-block-button__link { background: transparent; padding: .3rem 0; border-bottom: 1px solid currentColor; color: inherit; }
.rk-button-text .wp-block-button__link:hover { background: transparent; opacity: .7; color: inherit; }
.rk-button-outline .wp-block-button__link { background: transparent; color: inherit; border: 1px solid currentColor; }
.rk-button-outline .wp-block-button__link:hover { background: var(--wp--preset--color--acid); color: var(--wp--preset--color--ink); border-color: var(--wp--preset--color--acid); }
.rk-product-grid { margin: 0; }
.rk-product-grid .wp-block-woocommerce-product-template { row-gap: 2.5rem; }
.rk-product-grid .wc-block-product { min-width: 0; }
.rk-product-grid .wp-block-woocommerce-product-image { margin-bottom: .9rem; background: color-mix(in srgb, var(--wp--preset--color--paper) 90%, var(--wp--preset--color--ink)); }
.rk-product-grid .wp-block-woocommerce-product-image img { display: block; aspect-ratio: 4 / 5; object-fit: cover; transition: transform .3s; }
.rk-product-grid .wp-block-woocommerce-product-image a { display: block; overflow: hidden; }
.rk-product-grid .wp-block-woocommerce-product-image a:hover img { transform: scale(1.035); }
.rk-product-category { margin: 0 0 .3rem; font-size: 0.875rem; letter-spacing: .08em; color: var(--wp--preset--color--muted); }
.rk-product-category a { text-decoration: none; }
.rk-product-title { font-size: 1.4rem; line-height: 1.15; text-transform: uppercase; margin: .25rem 0 .35rem; }
.rk-product-grid .wp-block-woocommerce-product-price { margin: .25rem 0 .5rem; font-size: 1rem; }
.rk-product-action { margin: .65rem 0 0; }
.rk-product-action .wp-block-button__link { padding: .75rem 1rem; display: block; background: var(--wp--preset--color--ink); color: var(--wp--preset--color--paper); font-size: 1rem; }
.rk-product-action .wp-block-button__link:hover { background: var(--wp--preset--color--acid); color: var(--wp--preset--color--ink); }
.rk-sound-lab { padding: 2rem clamp(1.25rem, 3.2vw, 3.5rem); background: var(--wp--preset--color--ink); color: var(--wp--preset--color--paper); }
.rk-sound-lab > .wp-block-columns { align-items: stretch; gap: clamp(2rem, 5vw, 5rem); margin: 0; }
.rk-sound-image { height: 100%; }
.rk-sound-image img { width: 100%; height: 100%; min-height: 330px; max-height: 460px; object-fit: cover; display: block; }
.rk-sound-copy { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding-block: 1.25rem; }
.rk-sound-copy p:not(.rk-eyebrow) { max-width: 35rem; opacity: .8; }
.rk-sound-title { text-transform: uppercase; font-size: clamp(2.5rem, 4.5vw, 5rem); color: var(--wp--preset--color--acid); margin: 0; }
.rk-guides { display: grid; grid-template-columns: .85fr 2fr; gap: 3rem; }
.rk-guide-heading h2 { text-transform: uppercase; font-size: clamp(2.5rem, 4vw, 4rem); }
.rk-guide-heading .wp-block-buttons { margin-top: 1.5rem; }
.rk-guide img { aspect-ratio: 16 / 9; object-fit: cover; object-position: center 60%; width: 100%; }
.rk-guide .rk-eyebrow { margin: 1rem 0 .7rem; }
.rk-guide h3 { margin: 0 0 .75rem; font-size: 1.6rem; }
.rk-guide p:not(.rk-eyebrow) { font-size: .875rem; color: var(--wp--preset--color--muted); }
.rk-guide .wp-block-buttons { margin-top: 1rem; }
.rk-trust-row { border-block: 1px solid var(--wp--preset--color--line); padding: 1.5rem clamp(1.25rem, 3.2vw, 3.5rem); gap: 1rem 2rem; }
.rk-trust-item { font-size: 0.875rem; margin: 0; font-weight: 600; }
.rk-trust-item::before { content: '↗'; margin-inline-end: .8rem; }
.rk-footer { padding: 3.5rem clamp(1.25rem, 3.2vw, 3.5rem) 1.25rem; background: var(--wp--preset--color--ink); color: var(--wp--preset--color--paper); }
.rk-footer-columns { gap: 3rem; margin: 0; }
.rk-footer-brand .wp-block-site-title { font-size: clamp(3rem, 5vw, 5rem); text-transform: uppercase; }
.rk-footer-tagline { font-size: .875rem; opacity: .75; }
.rk-footer h3 { font-size: 1.4rem; }
.rk-footer p:not(.wp-block-site-title) { font-size: 1rem; }
.rk-footer-bottom { border-top: 1px solid color-mix(in srgb, currentColor 30%, transparent); padding-top: 1.5rem; margin-top: 3rem; }
.rk-footer-bottom p { margin: 0; }
.rk-footer-bottom .wp-block-social-links { margin: 0; }
.rk-shop-main > .wp-block-woocommerce-breadcrumbs { display: none; }
.rk-shop-intro { padding: 0 clamp(1.25rem, 3.2vw, 3.5rem); }
.rk-shop-intro > .rk-eyebrow { padding-top: 1.5rem; margin: 0; }
.rk-shop-intro-columns { gap: 2rem; margin: .5rem 0 0; align-items: stretch; }
.rk-shop-copy { padding: 2rem 0 2.5rem; }
.rk-shop-title { text-transform: uppercase; font-size: clamp(3.25rem, 6.5vw, 7.5rem); line-height: 1.02; max-width: 650px; margin: 0; }
.rk-shop-subtitle { font-size: 1.1rem; margin-top: 1rem; }
.rk-shop-image { height: 100%; }
.rk-shop-image img { display: block; width: 100%; height: 100%; max-height: 330px; object-fit: cover; }
.rk-shop-layout { padding: 2.5rem clamp(1.25rem, 3.2vw, 3.5rem); gap: 2.5rem; margin: 0; }
.rk-shop-layout > .wp-block-column:first-child { flex: 0 0 230px !important; }
.rk-shop-layout > .wp-block-column:last-child { flex: 1 1 0 !important; min-width: 0; }
.rk-shop-sidebar { flex-basis: 230px !important; flex-grow: 0 !important; min-width: 0; }
.rk-shop-sidebar fieldset { padding: 0; border: 0; min-width: 0; }
.rk-shop-sidebar input[type="text"] { background: transparent; border: 1px solid var(--wp--preset--color--line); padding: .6rem; color: inherit; font-size: 1rem; }
.rk-shop-results { min-width: 0; flex: 1; }
.rk-filter-title { text-transform: uppercase; font-size: 1.5rem; margin: 0 0 1rem; }
.rk-filter-heading { font-family:var(--rk-font-heading-choice,var(--wp--preset--font-family--body)); margin: 1.5rem 0 .85rem; padding-top: 1.25rem; border-top: 1px solid var(--wp--preset--color--line); }
.rk-shop-sidebar .wp-block-woocommerce-product-filters { --wc-product-filters-text-color: var(--wp--preset--color--ink); --wc-product-filters-background-color: var(--wp--preset--color--paper); font-size: 1rem; }
.rk-shop-help { margin-top: 2rem; background: var(--wp--preset--color--lavender); padding: 1.5rem; }
.rk-shop-help h3 { font-size: 1.65rem; }
.rk-shop-help p { font-size: 1rem; }
.rk-shop-toolbar { margin: 0 0 1.5rem; font-size: 0.875rem; min-height: 42px; }
.rk-shop-toolbar select { padding: .65rem; border: 1px solid var(--wp--preset--color--line); background: transparent; color: inherit; font-size: 1rem; }
.wp-block-query-pagination { padding: 2rem 0; font-size: .875rem; gap: 1rem; }
.wp-block-query-pagination .current { background: var(--wp--preset--color--acid); color: var(--wp--preset--color--ink); padding: .5rem .8rem; }
.rk-single-main > .wp-block-woocommerce-breadcrumbs { margin: 0; padding: 1.5rem clamp(1.25rem, 3.2vw, 3.5rem); font-size: 0.875rem; }
.rk-single-layout { gap: clamp(2rem, 4vw, 4rem); padding: 0 clamp(1.25rem, 3.2vw, 3.5rem) 3rem; margin: 0; }
.rk-single-layout > .wp-block-column:first-child { flex-basis: 55% !important; }
.rk-single-layout > .wp-block-column:last-child { flex-basis: 45% !important; }
.rk-product-gallery .woocommerce-product-gallery { float: none !important; width: 100% !important; margin: 0 !important; }
.rk-product-gallery .wp-block-woocommerce-product-image-gallery { width: 100%; max-width: none; }
.rk-product-gallery img { width: 100%; display: block; }
.rk-product-gallery .woocommerce-product-gallery__wrapper { margin: 0; }
.rk-product-gallery .flex-control-thumbs { display: flex; list-style: none; padding: 0; gap: .5rem; margin-top: .5rem !important; }
.rk-product-gallery .flex-control-thumbs li { width: 25%; }
.rk-product-purchase { padding-top: 1rem; }
.rk-single-title { font-size: clamp(3.5rem, 6vw, 7rem); text-transform: uppercase; line-height: 1; margin: 0 0 1.2rem; }
.rk-single-price { font-size: 1.8rem; margin: 1.3rem 0; }
.rk-product-purchase .wp-block-post-excerpt { font-size: 1rem; }
.rk-product-purchase .wp-block-woocommerce-product-stock-indicator { font-size: 0.875rem; }
.rk-product-purchase .cart { display: flex; flex-wrap: wrap; align-items: stretch; gap: .75rem; margin-top: 1.5rem; }
.rk-product-purchase .cart.variations_form, .rk-product-purchase .grouped_form { display: block; }
.rk-product-purchase .quantity input { width: 5rem; height: 52px; background: transparent; border: 1px solid var(--wp--preset--color--line); color: inherit; padding: .6rem; }
.rk-product-purchase .single_add_to_cart_button { background: var(--wp--preset--color--acid) !important; color: var(--wp--preset--color--ink) !important; border: 0; border-radius: 0 !important; min-height: 52px; padding: 1rem 2rem; font-weight: 700; flex: 1; }
.rk-product-purchase .variations select { width: 100%; height: auto; min-height: 48px; line-height: 1.4; padding: .7rem 2.5rem .7rem .8rem; background-color: transparent; border: 1px solid var(--wp--preset--color--line); color: inherit; }
.rk-product-purchase .woocommerce-variation-add-to-cart { display: flex; align-items: stretch; flex-wrap: wrap; gap: .75rem; }
.rk-product-assurance { margin-top: 2rem; padding-block: 1.5rem; border-block: 1px solid var(--wp--preset--color--line); font-size: 0.875rem; }
.rk-product-assurance .rk-eyebrow { margin-bottom: .5rem; }
.rk-product-purchase .wp-block-woocommerce-product-meta { font-size: 0.875rem; margin-top: 1.5rem; }
.rk-product-details { padding: 2rem clamp(1.25rem, 3.2vw, 3.5rem); border-block: 1px solid var(--wp--preset--color--line); }
.rk-product-details .woocommerce-tabs ul.tabs { padding-inline: 0; }
.rk-product-details .woocommerce-product-attributes { width: 100%; border-collapse: collapse; }
.rk-product-details th, .rk-product-details td { border-bottom: 1px solid var(--wp--preset--color--line); padding: .8rem; text-align: start; }
.rk-product-details h2 { text-transform: uppercase; }
.rk-product-details audio, .rk-product-details video { width: 100%; }
.rk-related h2 { margin: 0 0 2rem; text-transform: uppercase; }
.rk-page-main, .rk-journal-main, .rk-post-main { padding: clamp(2rem, 4vw, 4rem) clamp(1.25rem, 3.2vw, 3.5rem); }
.rk-page-heading { margin-bottom: 3rem; }
.rk-page-heading h1 { text-transform: uppercase; max-width: 1000px; margin-top: .5rem; font-size: clamp(3rem, 6vw, 6rem); }
.rk-page-main > .wp-block-post-content { min-height: 300px; }
.rk-journal-main .wp-block-post-template { gap: 3rem; }
.rk-journal-main .wp-block-post-title { font-size: 2rem; }
.rk-journal-main .wp-block-post-date { font-size: 0.875rem; }
.rk-not-found { padding: 6rem 1.25rem; max-width: 900px; margin-inline: auto; }
.rk-not-found h1 { font-size: clamp(3.5rem, 7vw, 7rem); text-transform: uppercase; }
.rk-not-found .wp-block-search { margin-block: 2rem; }
.rk-sound-page > .wp-block-image { margin-block: 2rem; }
.rk-sound-page > .wp-block-image img { width: 100%; max-height: 580px; object-fit: cover; }
.rk-post-main > .wp-block-post-featured-image { margin-block: 2rem; }
.rk-post-main > .wp-block-post-content { margin-bottom: 3rem; }
.rk-product-audio { padding: 2rem; background: var(--wp--preset--color--ink); color: var(--wp--preset--color--paper); }
.rk-product-audio h2 { color: var(--wp--preset--color--acid); }
.rk-product-audio audio { width: 100%; }
.woocommerce-message, .woocommerce-info, .woocommerce-error { padding: 1.25rem; border: 1px solid var(--wp--preset--color--line); list-style: none; }
.woocommerce-account .woocommerce { display: flow-root; }
.woocommerce-account .woocommerce-MyAccount-navigation { width: 24%; float: left; }
.woocommerce-account .woocommerce-MyAccount-content { width: 72%; float: right; }
.woocommerce-MyAccount-navigation ul { list-style: none; padding: 0; }
.woocommerce-MyAccount-navigation li { border-bottom: 1px solid var(--wp--preset--color--line); padding: .8rem 0; }
.woocommerce form .form-row input.input-text, .woocommerce form .form-row textarea { padding: .8rem; background: transparent; border: 1px solid var(--wp--preset--color--line); color: inherit; }
.woocommerce .button { background: var(--wp--preset--color--acid); color: var(--wp--preset--color--ink); padding: .8rem 1.25rem; border: 0; border-radius: 0; }
.woocommerce table.shop_table { width: 100%; border-collapse: collapse; }
.woocommerce table.shop_table th, .woocommerce table.shop_table td { padding: .8rem; border-bottom: 1px solid var(--wp--preset--color--line); }
@media (min-width: 1600px) { .wp-site-blocks { max-width: 1800px; margin-inline: auto; } }
@media (max-width: 1000px) {
 .rk-header-inner { gap: 1rem; }
 .rk-header-search { width: 145px; }
 .rk-header-inner .wp-block-site-title { font-size: 1.8rem; }
 .rk-header-inner .wp-block-navigation__container { gap: 1rem; }
 .rk-hero-title { font-size: clamp(3.5rem, 7.7vw, 6rem); }
 .rk-hero-image { min-height: 480px; }
 .rk-guides { grid-template-columns: 1fr; gap: 2rem; }
 .rk-guide-heading { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1rem; }
 .rk-guide-heading .rk-eyebrow { flex-basis: 100%; margin-bottom: 0; }
 .rk-guide-heading h2 { margin: 0; }
 .rk-shop-sidebar { flex-basis: 190px !important; }
 .rk-shop-layout > .wp-block-column:first-child { flex-basis: 190px !important; }
 .rk-shop-layout { gap: 1.5rem; }
}
@media (max-width: 781px) {
 .rk-header-tools .rk-header-search { display: none; }
 .rk-header-inner .wp-block-navigation { margin-left: auto; margin-right: 0; }
 .rk-hero-title { font-size: clamp(3.2rem, 7.5vw, 5rem); }
 .rk-hero-image { min-height: 410px; }
 .rk-hero-intro { font-size: 1rem; }
 .rk-hero-copy { padding: 2rem 1.25rem; }
 .rk-hero-copy .rk-eyebrow { font-size: 0.875rem; }
 .rk-sound-lab > .wp-block-columns { gap: 1rem; }
 .rk-sound-image img { min-height: 240px; max-height: 350px; }
 .rk-guides > .wp-block-columns { gap: 2rem; }
 .rk-guide img { max-height: 260px; }
 .rk-shop-intro-columns { display: grid; grid-template-columns: 1.3fr 1fr; gap: 1rem; }
 .rk-shop-copy { padding-top: 1rem; }
 .rk-shop-title { font-size: clamp(2.8rem, 6vw, 4rem); }
 .rk-shop-image img { min-height: 220px; }
 .rk-shop-layout { display: flex; flex-direction: column; gap: 1.5rem; }
 .rk-shop-sidebar { flex-basis: auto !important; width: 100%; }
 .rk-shop-layout > .wp-block-column:first-child { flex: 1 1 auto !important; width: 100%; }
 .rk-shop-sidebar .rk-shop-help { display: none; }
 .rk-shop-results { width: 100%; }
 .rk-filter-title { font-size: 1.3rem; }
 .rk-single-layout > .wp-block-column { flex-basis: 100% !important; }
 .rk-single-layout { gap: 1.5rem; }
 .rk-product-gallery .woocommerce-product-gallery__image img { max-height: 680px; object-fit: contain; background: #e4e0d8; }
 .rk-single-title { font-size: 4rem; }
 .rk-footer-columns { gap: 2rem; }
 .rk-section-heading { align-items: flex-start; }
 .rk-section-heading .wp-block-buttons { margin-left: 0; }
}
@media (max-width: 520px) {
 .rk-topbar { padding: .55rem .8rem; }
 .rk-announcement { font-size: 0.875rem; letter-spacing: .08em; }
 .rk-header-inner { padding-block: 1.2rem; gap: .8rem; }
 .rk-header-tools { gap: .5rem; }
 .rk-hero.wp-block-columns { grid-template-columns: 1fr; }
 .rk-hero-title { font-size: clamp(4rem, 14vw, 6rem); max-width: 100%; }
 .rk-hero-copy { padding: 2.5rem 1.25rem; }
 .rk-hero-image { min-height: 0; height: 330px; }
 .rk-category-strip { gap: .25rem .8rem; padding: .7rem 1.25rem; font-size: 0.875rem; letter-spacing: .05em; }
 .rk-shop-intro-columns { grid-template-columns: 1fr; }
 .rk-shop-image { display: none; }
 .rk-shop-title { font-size: clamp(3.5rem, 14vw, 5rem); }
 .rk-shop-subtitle { font-size: 1rem; }
 .rk-shop-copy { padding-bottom: 1.5rem; }
 .rk-product-grid .wp-block-woocommerce-product-template { row-gap: 1.75rem; }
 .rk-product-title { font-size: 1.15rem; }
 .rk-product-action .wp-block-button__link { padding: .7rem .5rem; font-size: 1rem; }
 .rk-product-category { font-size: 0.875rem; }
 .rk-section { padding-block: 2.25rem; }
 .rk-sound-title { font-size: 2.8rem; }
 .rk-trust-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
 .rk-trust-item { font-size: 0.875rem; }
 .rk-trust-item::before { margin-inline-end: .3rem; }
 .rk-single-title { font-size: 3.5rem; }
 .rk-product-purchase .cart { gap: .5rem; }
 .rk-product-purchase .single_add_to_cart_button { padding-inline: 1rem; }
 .rk-footer { padding-top: 2.5rem; }
 .woocommerce-account .woocommerce-MyAccount-navigation, .woocommerce-account .woocommerce-MyAccount-content { float: none; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Prefer the complete Vietnamese body face for a Vietnamese document. */
html:lang(vi){--wp--preset--font-family--body:"RiffKeys Vietnamese",Arial,sans-serif}

/* Keep the WordPress announcements introduction available to assistive tech. */
.a11y-speak-intro-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);white-space:nowrap;border:0}