:root {
  color-scheme: dark;
  --amber: #FAA805;
  --background: #000000;
  --surface: #14171D;
  --panel: #0C0E12;
  --panel-alt: #0D0F13;
  --text: #EEF2FB;
  --muted: #9AA2B1;
  --on-amber: #14171D;
  --line: #282D36;
  --line-soft: #1D2129;
  --future-light-background: #F2F4F8;
  --future-light-text: #111520;
  --future-light-amber-text: #8F5D00;
  --font-main: Georgia, "Times New Roman", "Yu Mincho", "Malgun Gothic", "Microsoft YaHei", serif;
  --content-width: 1240px;
  --radius-large: 24px;
  --radius-medium: 16px;
}

[data-theme="dark"] {
  --page-background: var(--background);
  --page-surface: var(--surface);
  --page-panel: var(--panel);
  --page-text: var(--text);
  --page-muted: var(--muted);
  --page-accent: var(--amber);
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100svh;
  color: var(--page-text);
  background: var(--page-background);
  font-family: var(--font-main);
  letter-spacing: .012em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea, code, pre { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
.sr-only { width: 1px; height: 1px; padding: 0; margin: -1px; position: absolute; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.section-shell { width: min(var(--content-width), calc(100% - 48px)); margin-inline: auto; }

.site-header {
  width: 100%;
  height: 78px;
  margin-inline: 0;
  padding-inline: clamp(20px, 4vw, 72px);
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(0, 0, 0, .92);
  backdrop-filter: blur(18px);
}
.site-header.scrolled { border-color: var(--line); }
.wordmark { width: max-content; color: var(--text); font-size: 18px; font-weight: 700; letter-spacing: .035em; }
.wordmark:hover { color: var(--amber); }
.header-wordmark { display: inline-flex; align-items: center; gap: 4px; font-size: clamp(17px, 1.5vw, 22px); white-space: nowrap; }
.header-wordmark img { width: 76px; height: auto; aspect-ratio: 91 / 29; flex: none; object-fit: contain; object-position: center; }
.header-wordmark em { color: var(--amber); font-style: normal; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 34px; }
.desktop-nav a { padding: 9px 0; border-bottom: 1px solid transparent; color: var(--muted); font-size: 13px; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--text); border-color: var(--amber); }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }

.selector-menu { position: relative; z-index: 60; }
.selector-trigger {
  height: 40px;
  min-width: 94px;
  padding: 0 9px;
  display: flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  background: var(--panel-alt);
  cursor: pointer;
  font-size: 12px;
}
.selector-trigger:hover, .selector-menu.open .selector-trigger { border-color: var(--amber); }
.selector-trigger::before { content: ""; width: 17px; height: 17px; flex: none; background: url('/site-assets/assets/language-globe.svg') center / contain no-repeat; }
.selector-trigger [data-language-current] { flex: 1; text-align: center; white-space: nowrap; font-weight: 700; letter-spacing: .04em; }
.selector-trigger svg { width: 14px; fill: none; stroke: var(--muted); stroke-width: 1.8; transition: transform .2s ease; }
.selector-menu.open .selector-trigger svg { transform: rotate(180deg); }
.selector-popover {
  min-width: 210px;
  max-height: min(430px, calc(100vh - 100px));
  padding: 6px;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: none;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .48);
}
.selector-menu.open .selector-popover { display: grid; gap: 2px; animation: selectorOpen .16s ease-out; }
.selector-popover button { min-height: 34px; padding: 0 10px; border: 0; border-radius: 7px; color: var(--muted); background: transparent; cursor: pointer; font-size: 12px; text-align: left; }
.selector-popover button:hover { color: var(--text); background: var(--panel); }
.selector-popover button[aria-selected="true"] { color: var(--on-amber); background: var(--amber); }
/* Public language navigation is ordinary HTML and works without JavaScript. */
details.selector-menu > summary { list-style: none; cursor: pointer; }
details.selector-menu > summary::-webkit-details-marker { display: none; }
details.selector-menu[open] > .selector-popover { display: grid; gap: 2px; }
details.selector-menu[open] > .selector-trigger { border-color: var(--amber); }
details.selector-menu[open] > .selector-trigger svg { transform: rotate(180deg); }
.language-options > a { display: flex; align-items: center; min-height: 34px; padding: 0 10px; border-radius: 7px; color: var(--muted); font-size: 12px; }
.language-options > a:hover, .language-options > a:focus-visible { color: var(--text); background: var(--panel); }
.language-options > a[aria-current="page"] { color: var(--on-amber); background: var(--amber); }
a.account-button { display: inline-flex; align-items: center; justify-content: center; }
.account-button {
  height: 40px;
  padding: 0 17px;
  border: 2px solid #ffd171;
  border-radius: 10px;
  color: var(--on-amber);
  background: var(--amber);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .32);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}
.account-button:hover { background: #FFB522; }

.company-page .home-header { position: relative; }
.home-header .header-actions { gap: 10px; }
.home-login-button,
.home-signup-button {
  height: 40px;
  padding: 0 17px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}
.home-login-button { border: 1px solid transparent; color: var(--text); background: transparent; }
.home-login-button:hover { color: var(--amber); }
.home-signup-button { border: 1px solid var(--amber); color: var(--on-amber); background: var(--amber); }
.home-signup-button:hover { background: #FFB522; }
.language-trigger-icon { width: 40px; min-width: 40px; padding: 0; justify-content: center; }
.language-trigger-icon .language-globe { width: 18px; height: 18px; stroke: var(--text); stroke-linecap: round; stroke-linejoin: round; }
.selector-menu.open .language-trigger-icon .language-globe { transform: none; }

.eyebrow { color: var(--amber); font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.primary-button {
  min-height: 48px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  border: 1px solid var(--amber);
  border-radius: 11px;
  color: var(--on-amber);
  background: var(--amber);
  font-size: 13px;
  font-weight: 700;
  transition: background .2s ease, transform .2s ease;
}
.primary-button:hover { background: #FFB522; transform: translateY(-1px); }
.chrome-store-icon { width: 24px; height: 22px; flex: none; object-fit: contain; }
.quiet-link { padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.quiet-link:hover { color: var(--text); border-color: var(--amber); }

.company-page {
  height: 100svh;
  overflow: hidden;
  background-color: var(--background);
  background-image:
    linear-gradient(rgba(250, 168, 5, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 168, 5, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
}
.company-main { min-height: calc(100svh - 54px); width: 100%; display: grid; place-items: center; }
.company-hero { width: 100%; padding: 104px 32px 54px; display: grid; place-items: center; }
.company-copy { width: 100%; text-align: center; }
.product-directions { margin: 48px auto 0; display: flex; align-items: stretch; justify-content: center; gap: 16px; }
.product-directions > * { width: 310px; min-width: 310px; height: 240px; padding: 28px 24px; display: flex; align-items: flex-start; justify-content: center; gap: 14px; border: 1px solid rgba(250, 168, 5, .38); border-radius: 15px; color: var(--text); background: var(--surface); box-shadow: 0 16px 44px rgba(0, 0, 0, .32); font-size: 16px; font-weight: 700; }
.product-directions > span { cursor: default; }
.product-directions a { border-color: var(--amber); color: var(--on-amber); background: var(--amber); transition: transform .2s ease, background .2s ease; }
.product-directions a:hover { background: #FFB522; transform: translateY(-2px); }
.product-directions strong { min-width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; color: var(--amber); background: var(--on-amber); font-size: 11px; }
.company-copy h1 { color: var(--text); font-size: clamp(39px, 4.7vw, 86px); font-weight: 700; line-height: .92; letter-spacing: -.052em; white-space: nowrap; }
.company-copy h1 > span { color: var(--amber); }
.company-copy h2 { max-width: 720px; margin: 32px auto 0; color: var(--text); font-size: clamp(25px, 2.6vw, 38px); font-weight: 400; line-height: 1.15; letter-spacing: -.025em; }
.company-lead { max-width: 700px; margin: 20px auto 0; color: var(--muted); font-size: 15px; line-height: 1.72; }
.company-actions { margin-top: 31px; display: flex; align-items: center; justify-content: center; gap: 28px; }
.company-belief { max-width: 700px; margin: 34px auto 0; padding-top: 18px; border-top: 1px solid var(--line-soft); color: var(--muted); font-size: 12px; line-height: 1.6; }
.direction-panel { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-large); background: var(--surface); }
.direction-heading { min-height: 150px; padding: 28px; display: flex; flex-direction: column; justify-content: space-between; background: var(--panel); }
.direction-heading > span { color: var(--amber); font-size: 12px; font-weight: 700; }
.direction-heading p { max-width: 280px; color: var(--text); font-size: 23px; line-height: 1.25; }
.direction-list > * { min-height: 72px; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.direction-list i { width: 7px; height: 7px; border: 1px solid #555C68; border-radius: 50%; }
.direction-list a { color: var(--text); }
.direction-list a:hover { background: var(--panel-alt); }
.direction-list strong { min-width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; color: var(--on-amber); background: var(--amber); font-size: 12px; }
.compact-footer { height: 54px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line-soft); color: #747C8B; font-size: 10px; }
.company-page .compact-footer { width: calc(100% - 56px); max-width: none; }
.compact-footer nav { display: flex; gap: 22px; }
.compact-footer a:hover { color: var(--text); }

.subpage-main { min-height: 70vh; }
.catalog-hero { padding: 40px 0 24px; }
.catalog-hero h1 { max-width: 900px; font-size: clamp(54px, 7vw, 92px); line-height: 1.02; letter-spacing: -.042em; }
.hero-lead { max-width: 720px; margin-top: 28px; color: var(--muted); font-size: 18px; line-height: 1.65; }
.catalog-grid { padding: 8px 0 56px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.catalog-card { min-width: 0; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-large); background: var(--surface); }
.catalog-card-visual { height: 300px; padding: 24px; display: block; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--panel); }
.catalog-card-visual img { width: 100%; height: 100%; object-fit: contain; border-radius: 15px; filter: saturate(.82) contrast(.96); transform: scale(1.15); transform-origin: center; transition: transform .3s ease; }
.catalog-card-visual img[src*="hero-amber"] { filter: none; }
.catalog-card-visual:hover img { transform: scale(1.165); }
.catalog-card-copy { padding: 30px; display: flex; flex: 1; flex-direction: column; }
.product-title-row { display: flex; align-items: center; gap: 15px; }
.product-title-row img { width: 48px; height: 48px; border-radius: 13px; }
.product-title-row h2 { font-size: 25px; line-height: 1.2; }
.product-title-row a:hover { color: var(--amber); }
.product-lead { margin: 32px 0 28px; color: var(--text); font-size: 22px; line-height: 1.38; }
.catalog-card-copy ul, .feature-panel ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.catalog-card-copy li, .feature-panel li { min-height: 63px; padding: 15px 0; display: grid; grid-template-columns: 52px 1fr; align-items: start; border-bottom: 1px solid var(--line); }
.catalog-card-copy li span, .feature-panel li span { color: var(--amber); font-family: Georgia, "Times New Roman", serif; font-size: 12px; font-weight: 700; line-height: 1.55; }
.catalog-card-copy li p, .feature-panel li p { color: var(--muted); font-size: 13px; line-height: 1.55; }
.catalog-card-copy li { grid-template-columns: 60px minmax(0, 1fr); column-gap: 12px; }
.catalog-card-copy li > span { font-size: 24px; line-height: 1; }
.catalog-card-copy li p { font-size: 15px; }
.catalog-actions { margin-top: auto; padding-top: 24px; display: flex; align-items: center; justify-content: center; gap: 24px; }

.product-page-hero { padding: 92px 0 112px; display: grid; grid-template-columns: minmax(0, .86fr) minmax(480px, 1.14fr); align-items: center; gap: clamp(50px, 7vw, 96px); }
.back-link { display: inline-block; margin-bottom: 42px; color: var(--muted); font-size: 13px; }
.back-link:hover { color: var(--amber); }
.product-kicker { color: var(--amber); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.product-page-title { margin-top: 22px; display: flex; align-items: center; gap: 18px; }
.product-page-title > img { width: 68px; height: 68px; border-radius: 18px; }
.product-page-title h1 { font-size: clamp(48px, 5.2vw, 76px); line-height: 1.02; letter-spacing: -.04em; }
.product-page-actions { margin-top: 34px; display: flex; align-items: center; gap: 24px; }
.hero-notes { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px 20px; color: var(--muted); font-size: 11px; }
.hero-notes > span { display: flex; align-items: center; gap: 8px; }
.hero-notes i { width: 5px; height: 5px; border-radius: 50%; background: var(--amber); }
.product-page-visual { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-large); background: var(--panel); }
.window-bar { height: 46px; padding: 0 16px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--line); }
.window-bar > span { width: 7px; height: 7px; border-radius: 50%; background: #343A45; }
.window-bar > span:first-child { background: var(--amber); }
.window-bar p { margin-left: auto; color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.product-page-visual > img { width: 100%; aspect-ratio: 2.05 / 1; object-fit: cover; filter: saturate(.82) contrast(.96); }
.product-page-section { padding: 100px 0 120px; border-top: 1px solid var(--line-soft); }
.section-heading { max-width: 760px; margin-bottom: 50px; }
.section-heading h2 { margin-top: 18px; font-size: clamp(40px, 5vw, 68px); line-height: 1.05; letter-spacing: -.035em; }
.product-detail-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr); gap: 24px; }
.product-detail-visual { min-height: 520px; padding: 28px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: var(--radius-large); background: var(--panel); }
.product-detail-visual img { max-height: 460px; border-radius: 15px; box-shadow: 0 22px 60px rgba(0, 0, 0, .34); }
.feature-panel { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-large); background: var(--surface); }
.feature-note { margin-top: 34px; padding: 22px; border-radius: var(--radius-medium); color: var(--muted); background: var(--panel); }
.feature-note strong { color: var(--text); font-size: 16px; }
.feature-note p { margin-top: 10px; font-size: 13px; line-height: 1.65; }
.product-switch { padding: 82px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.product-switch a { margin-top: 20px; display: flex; align-items: center; justify-content: space-between; gap: 30px; font-size: clamp(34px, 5.2vw, 70px); line-height: 1.08; letter-spacing: -.035em; }
.product-switch a:hover { color: var(--amber); }
.product-switch strong { color: var(--amber); font-weight: 400; }

/* Sound Box uses the same black-and-amber visual language as the Mellow home page. */
body[data-product-slug="sound-box"] .product-page-hero {
  min-height: 700px;
  padding: 48px 0 76px;
  position: relative;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: 0;
  isolation: isolate;
}
body[data-product-slug="sound-box"] .product-page-hero::before,
body[data-product-slug="sound-box"] .product-page-section::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(250, 168, 5, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 168, 5, .06) 1px, transparent 1px);
  background-size: 86px 86px;
  mask-image: linear-gradient(90deg, transparent 8%, #000 55%, transparent 100%);
}
body[data-product-slug="sound-box"] .product-page-copy { position: relative; z-index: 2; }
body[data-product-slug="sound-box"] .back-link { margin-bottom: 64px; font-size: 15px; }
body[data-product-slug="sound-box"] .product-kicker { display: none; }
body[data-product-slug="sound-box"] .product-page-title { margin: 0; }
body[data-product-slug="sound-box"] .product-page-title > img { display: none; }
body[data-product-slug="sound-box"] .product-page-title h1 {
  font-size: clamp(58px, 6.3vw, 92px);
  font-weight: 700;
  line-height: .98;
  letter-spacing: -.055em;
}
body[data-product-slug="sound-box"] .product-page-title h1 span { display: block; white-space: nowrap; }
body[data-product-slug="sound-box"] .product-page-title h1 span:last-child { color: var(--amber); }
body[data-product-slug="sound-box"] .product-page-copy .hero-lead {
  max-width: 480px;
  margin-top: 32px;
  color: var(--text);
  font-size: clamp(20px, 2vw, 27px);
  line-height: 1.35;
}
body[data-product-slug="sound-box"] .product-page-actions { margin-top: 38px; }
body[data-product-slug="sound-box"] .product-page-actions .primary-button { min-height: 56px; padding-inline: 22px; font-size: 16px; }
body[data-product-slug="sound-box"] .product-page-actions .quiet-link { color: var(--text); }
body[data-product-slug="sound-box"] .hero-notes { margin-top: 66px; font-size: 12px; }
body[data-product-slug="sound-box"] .product-page-visual {
  width: calc(100% + 86px);
  height: 590px;
  margin-left: -26px;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
}
body[data-product-slug="sound-box"] .product-page-visual .window-bar { display: none; }
body[data-product-slug="sound-box"] .product-page-visual > img {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  object-fit: contain;
  object-position: 52% center;
  filter: none;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 91%, transparent);
}
body[data-product-slug="sound-box"] .product-page-section {
  padding: 116px 0 132px;
  position: relative;
  isolation: isolate;
}
body[data-product-slug="sound-box"] .product-page-section::before { mask-image: linear-gradient(#000, #000 80%, transparent); }
body[data-product-slug="sound-box"] .section-heading { max-width: none; margin-bottom: 54px; }
body[data-product-slug="sound-box"] .section-heading .eyebrow { display: none; }
body[data-product-slug="sound-box"] .section-heading h2 { margin: 0; font-size: clamp(44px, 5.5vw, 76px); }
body[data-product-slug="sound-box"] .section-heading h2 em { color: var(--amber); font-style: normal; }
body[data-product-slug="sound-box"] .product-detail-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  align-items: center;
  gap: clamp(44px, 6vw, 88px);
}
body[data-product-slug="sound-box"] .product-detail-visual {
  min-height: 0;
  padding: 0;
  display: block;
  border: 0;
  border-radius: 0;
  background: transparent;
}
body[data-product-slug="sound-box"] .product-detail-visual img {
  width: min(100%, 608px);
  max-height: none;
  border: 1px solid rgba(250, 168, 5, .4);
  border-radius: 30px;
  box-shadow: 0 24px 75px rgba(0, 0, 0, .52);
}
body[data-product-slug="sound-box"] .feature-panel { padding: 0; border: 0; border-radius: 0; background: transparent; }
body[data-product-slug="sound-box"] .feature-panel ul { border-top: 0; border-left: 1px solid var(--amber); }
body[data-product-slug="sound-box"] .feature-panel li {
  min-height: 162px;
  padding: 25px 0 25px 30px;
  grid-template-columns: 92px 1fr;
  align-items: start;
  border-bottom: 0;
}
body[data-product-slug="sound-box"] .feature-panel li span { font-size: 48px; line-height: 1; letter-spacing: -.05em; }
body[data-product-slug="sound-box"] .feature-panel li p { color: var(--text); font-size: clamp(19px, 2vw, 27px); line-height: 1.25; }
body[data-product-slug="sound-box"] .feature-note {
  margin-top: 16px;
  padding: 20px 0 0;
  border-top: 1px solid var(--amber);
  border-radius: 0;
  background: transparent;
}
body[data-product-slug="sound-box"] .feature-note strong { font-size: 15px; }
body[data-product-slug="sound-box"] .feature-note p { max-width: 440px; color: var(--muted); font-size: 14px; }

.site-footer { padding: 18px 0 20px; background: var(--panel); }
.footer-links { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: var(--muted); font-size: 12px; }
.footer-links a:hover { color: var(--amber); }
.footer-bottom { padding-top: 18px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-top: 1px solid var(--line); color: #747C8B; font-size: 10px; }
.footer-bottom > span:last-child { margin-left: auto; text-align: right; }

.reveal { opacity: 0; transform: translateY(12px); transition: opacity .45s ease, transform .45s ease; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes selectorOpen { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

@media (max-width: 1000px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .company-hero { grid-template-columns: 1fr; gap: 48px; }
  .direction-panel { width: min(100%, 620px); }
  .catalog-grid { grid-template-columns: 1fr; }
  .catalog-card { display: grid; grid-template-columns: .85fr 1.15fr; }
  .catalog-card-visual { height: 100%; min-height: 0; border-right: 1px solid var(--line); border-bottom: 0; }
  .product-page-hero { grid-template-columns: 1fr; }
  .product-page-copy { max-width: 760px; }
  .product-detail-grid { grid-template-columns: 1fr; }
  body[data-product-slug="sound-box"] .product-page-hero { min-height: 0; padding-block: 58px 72px; grid-template-columns: 1fr; gap: 24px; }
  body[data-product-slug="sound-box"] .product-page-copy { max-width: 650px; }
  body[data-product-slug="sound-box"] .back-link { margin-bottom: 44px; }
  body[data-product-slug="sound-box"] .hero-notes { margin-top: 38px; }
  body[data-product-slug="sound-box"] .product-page-visual { width: 100%; height: min(62vw, 560px); margin-left: 0; }
  body[data-product-slug="sound-box"] .product-detail-grid { grid-template-columns: 1fr; gap: 48px; }
  body[data-product-slug="sound-box"] .product-detail-visual img { margin-inline: auto; }
  body[data-product-slug="sound-box"] .feature-panel { max-width: 690px; margin-inline: auto; }
}

@media (max-width: 720px) {
  .section-shell { width: calc(100% - 28px); }
  .site-header { height: 66px; padding-inline: 14px; gap: 12px; }
  .wordmark { font-size: 15px; }
  .header-wordmark { gap: 5px; font-size: 12px; letter-spacing: 0; }
  .header-wordmark img { width: 42px; }
  .header-actions { gap: 7px; }
  .selector-trigger { min-width: 86px; height: 36px; padding-inline: 7px; }
  .account-button { height: 36px; padding-inline: 9px; }
  .home-login-button { height: 36px; padding-inline: 12px; }
  .language-trigger-icon { width: 36px; min-width: 36px; }
  .company-page { height: auto; min-height: 100svh; overflow: visible; }
  .company-main { min-height: calc(100svh - 71px); }
  .company-hero { padding: 118px 14px 50px; grid-template-columns: 1fr; gap: 46px; }
  .product-directions { width: min(100%, 620px); margin-top: 38px; gap: 10px; }
  .product-directions > * { width: calc((100% - 20px) / 3); min-width: 0; height: 170px; padding: 22px 16px; font-size: 13px; }
  .company-copy h1 { font-size: clamp(39px, 10vw, 50px); white-space: normal; }
  .company-copy h2 { margin-top: 24px; font-size: 28px; }
  .company-lead { font-size: 14px; }
  .company-actions { align-items: center; }
  .compact-footer { height: auto; min-height: 64px; padding: 18px 0; flex-direction: column; align-items: flex-start; gap: 12px; }
  .catalog-hero { padding: 28px 0 20px; }
  .catalog-hero h1 { font-size: clamp(46px, 14vw, 66px); }
  .hero-lead { font-size: 15px; }
  .catalog-grid { padding-bottom: 40px; }
  .catalog-card { display: block; }
  .catalog-card-visual { height: 220px; min-height: 0; padding: 14px; border-right: 0; border-bottom: 1px solid var(--line); }
  .catalog-card-visual img { transform-origin: right center; }
  .catalog-card-copy { padding: 24px 20px; }
  .product-title-row h2 { font-size: 22px; }
  .product-lead { font-size: 19px; }
  .catalog-actions { align-items: center; flex-direction: column; gap: 12px; }
  .product-page-hero { padding: 62px 0 80px; gap: 48px; }
  .back-link { margin-bottom: 32px; }
  .product-page-title { align-items: flex-start; }
  .product-page-title > img { width: 56px; height: 56px; border-radius: 15px; }
  .product-page-title h1 { font-size: clamp(42px, 12vw, 58px); }
  .product-page-actions { align-items: flex-start; flex-direction: column; }
  .product-page-section { padding: 80px 0 90px; }
  .product-detail-visual { min-height: 330px; padding: 14px; }
  .feature-panel { padding: 20px; }
  .product-switch { padding: 66px 0; }
  .product-wordmark { gap: 7px; }
  .product-wordmark img { width: 40px; height: 40px; }
  .product-wordmark span { font-size: 13px; }
  body[data-product-slug="sound-box"] .product-page-hero { padding-block: 38px 60px; gap: 10px; }
  body[data-product-slug="sound-box"] .back-link { margin-bottom: 34px; }
  body[data-product-slug="sound-box"] .product-page-title h1 { font-size: clamp(48px, 11vw, 70px); }
  body[data-product-slug="sound-box"] .product-page-copy .hero-lead { margin-top: 22px; font-size: 19px; }
  body[data-product-slug="sound-box"] .product-page-actions { margin-top: 26px; gap: 12px; }
  body[data-product-slug="sound-box"] .product-page-actions .primary-button { min-height: 50px; font-size: 14px; }
  body[data-product-slug="sound-box"] .hero-notes { margin-top: 30px; }
  body[data-product-slug="sound-box"] .product-page-visual { height: min(80vw, 420px); }
  body[data-product-slug="sound-box"] .product-page-section { padding-block: 75px 86px; }
  body[data-product-slug="sound-box"] .section-heading { margin-bottom: 32px; }
  body[data-product-slug="sound-box"] .section-heading h2 { font-size: clamp(40px, 10vw, 62px); }
  body[data-product-slug="sound-box"] .product-detail-grid { gap: 38px; }
  body[data-product-slug="sound-box"] .feature-panel li { min-height: 120px; padding: 21px 0 21px 18px; grid-template-columns: 66px 1fr; }
  body[data-product-slug="sound-box"] .feature-panel li span { font-size: 32px; }
  body[data-product-slug="sound-box"] .feature-panel li p { font-size: 19px; }
  .footer-bottom { align-items: flex-start; flex-wrap: wrap; gap: 14px 24px; }
  .footer-bottom > span:last-child { margin-left: 0; text-align: left; }
}

@media (max-width: 420px) {
  .header-actions { gap: 6px; }
  .selector-trigger { min-width: 80px; padding-inline: 6px; gap: 5px; }
  .language-trigger-icon { width: 34px; min-width: 34px; padding: 0; }
  .account-button { padding-inline: 10px; font-size: 11px; }
  .home-login-button { padding-inline: 9px; font-size: 11px; }
  .company-actions { flex-direction: column; align-items: center; gap: 14px; }
  .product-directions { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .product-directions > * { width: 100%; padding-inline: 10px; }
  .product-directions a { grid-column: 1 / -1; }
  .direction-heading { min-height: 132px; }
  .direction-heading p { font-size: 20px; }
  .compact-footer nav { gap: 14px; }
  .product-wordmark span { display: none; }
}

@media (max-width: 360px) {
  .site-header { gap: 6px; }
  .header-wordmark { font-size: 11px; }
  .header-wordmark img { width: 38px; }
  body[data-page="extensions"] .header-wordmark { gap: 2px; font-size: 10px; }
  body[data-page="extensions"] .header-wordmark img { width: 28px; }
  .selector-trigger { min-width: 76px; }
  .selector-trigger::before { width: 15px; height: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}