:root {
  color-scheme: light;
  --bg: #ffffff;
  --fg: #171717;
  --muted: #666666;
  --muted-strong: #444444;
  --surface: #fafafa;
  --surface-2: #f3f3f3;
  --surface-elevated: rgba(255, 255, 255, 0.86);
  --border: #e5e5e5;
  --border-strong: #cfcfcf;
  --accent: #0070f3;
  --accent-hover: #0060d0;
  --accent-soft: rgba(0, 112, 243, 0.08);
  --success: #15803d;
  --danger: #b42318;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --radius-lg: 18px;
  --container: 1200px;
  --header-bg: rgba(255, 255, 255, 0.82);
  --grid-line: rgba(0, 0, 0, 0.045);
  --hero-glow: rgba(0, 112, 243, 0.10);
  --button-bg: #171717;
  --button-fg: #ffffff;
  --inverse-bg: #171717;
  --inverse-fg: #ffffff;
  --inverse-muted: #a3a3a3;

  /* Compatibility aliases used throughout the project. */
  --ink: var(--fg);
  --paper: var(--bg);
  --soft: var(--surface);
  --line: var(--border);
  --brand: var(--accent);
  --brand-dark: var(--accent);
  --brand-soft: var(--accent-soft);
  --shadow: var(--shadow-md);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #000000;
  --fg: #ededed;
  --muted: #a1a1a1;
  --muted-strong: #c7c7c7;
  --surface: #0a0a0a;
  --surface-2: #111111;
  --surface-elevated: rgba(10, 10, 10, 0.86);
  --border: #262626;
  --border-strong: #404040;
  --accent: #3291ff;
  --accent-hover: #68b1ff;
  --accent-soft: rgba(50, 145, 255, 0.12);
  --success: #4ade80;
  --danger: #ff7b72;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 18px 50px rgba(0, 0, 0, 0.44);
  --header-bg: rgba(0, 0, 0, 0.76);
  --grid-line: rgba(255, 255, 255, 0.055);
  --hero-glow: rgba(50, 145, 255, 0.11);
  --button-bg: #ededed;
  --button-fg: #0a0a0a;
  --inverse-bg: #ededed;
  --inverse-fg: #0a0a0a;
  --inverse-muted: #525252;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: Geist, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body, .site-header, .site-nav, .card, .btn, .theme-toggle, .menu-toggle,
input, textarea, select, .hero-media, .hero-badge, .page-hero, .site-footer,
.product-image, .model-visual, .category-visual, .split-media, .stats, table, th {
  transition: background-color .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
::selection { color: #fff; background: var(--accent); }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 999;
  padding: 9px 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--fg);
  color: var(--bg);
  box-shadow: var(--shadow-md);
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }

.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.narrow { width: min(calc(100% - 40px), 820px); margin-inline: auto; }
.section { padding: 96px 0; }
.section--soft { border-block: 1px solid var(--border); background: var(--surface); }
.section--tight { padding: 64px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; }

h1, h2, h3, h4 { margin: 0 0 16px; line-height: 1.08; letter-spacing: -.045em; }
h1 { max-width: 980px; font-size: clamp(2.8rem, 7vw, 6rem); font-weight: 720; }
h2 { font-size: clamp(2rem, 4.4vw, 3.8rem); font-weight: 680; }
h3 { font-size: clamp(1.2rem, 2vw, 1.48rem); font-weight: 650; letter-spacing: -.03em; }
p { margin: 0 0 18px; }
.lead { max-width: 720px; color: var(--muted); font-size: clamp(1.04rem, 1.7vw, 1.22rem); line-height: 1.62; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.kicker { color: var(--accent); font-weight: 650; }

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: .92rem;
  font-weight: 580;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform .16s ease, background-color .16s ease, color .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, .nav-link:focus-visible, .filter-btn:focus-visible,
.menu-toggle:focus-visible, .theme-toggle:focus-visible, .faq-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.btn--primary { border-color: var(--button-bg); background: var(--button-bg); color: var(--button-fg); box-shadow: var(--shadow-sm); }
.btn--primary:hover { opacity: .86; }
.btn--secondary { border-color: var(--border); background: var(--bg); color: var(--fg); box-shadow: var(--shadow-sm); }
.btn--secondary:hover { border-color: var(--border-strong); background: var(--surface); }
.btn--text { min-height: auto; padding: 0; color: var(--fg); font-weight: 600; }
.btn--text:hover { color: var(--accent); transform: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
}
.site-header.is-scrolled { border-color: var(--border); box-shadow: var(--shadow-sm); }
.header-inner { min-height: 66px; display: flex; align-items: center; gap: 8px; }
.brand { order: 1; display: inline-flex; align-items: center; gap: 11px; margin-right: 24px; font-weight: 650; line-height: 1.08; letter-spacing: -.02em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
html[data-theme="dark"] .brand img { filter: invert(1); }
.brand span { display: block; max-width: 230px; }
.brand small { display: block; margin-top: 4px; color: var(--muted); font-size: .66rem; font-weight: 520; letter-spacing: .07em; text-transform: uppercase; }
.site-nav { order: 2; display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav-link { padding: 8px 10px; border-radius: 7px; color: var(--muted); font-size: .88rem; font-weight: 520; }
.nav-link:hover { color: var(--fg); background: var(--surface); }
.nav-link[aria-current="page"] { color: var(--fg); background: var(--surface-2); }
.nav-cta { margin-left: 8px; }
.theme-toggle, .menu-toggle {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  box-shadow: var(--shadow-sm);
}
.theme-toggle { order: 3; display: grid; place-items: center; margin-left: 8px; padding: 0; }
.theme-toggle:hover, .menu-toggle:hover { background: var(--surface); border-color: var(--border-strong); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
.menu-toggle { order: 4; display: none; padding: 0; }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 17px; height: 1px; margin: 4px auto; background: var(--fg); transition: transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-5px) rotate(-45deg); }

.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 104px;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg);
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px),
    radial-gradient(circle at 74% 48%, var(--hero-glow), transparent 31%);
  background-size: 42px 42px, 42px 42px, auto;
}
.hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(to bottom, transparent 72%, var(--bg)); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr); align-items: center; gap: 72px; }
.hero-copy h1 { max-width: 790px; text-wrap: balance; }
.hero-copy .lead { margin-bottom: 30px; }
.hero-note { display: flex; align-items: flex-start; gap: 11px; max-width: 660px; margin-top: 28px; color: var(--muted); font-size: .9rem; }
.hero-note svg { flex: 0 0 auto; margin-top: 2px; color: var(--fg); }
.hero-media {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
}
.hero-media::before { content: ""; position: absolute; inset: 18px; border: 1px dashed var(--border); border-radius: 12px; }
.hero-media img { position: relative; width: 104%; max-width: none; transform: translateX(-3%); filter: drop-shadow(0 25px 30px rgba(0, 0, 0, .16)); }
html[data-theme="dark"] .hero-media img, html[data-theme="dark"] .product-image img, html[data-theme="dark"] .model-visual img, html[data-theme="dark"] .split-media img { filter: drop-shadow(0 24px 32px rgba(0,0,0,.55)); }
.hero-badge { position: absolute; right: 20px; bottom: 20px; max-width: 245px; padding: 14px 15px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-elevated); box-shadow: var(--shadow-md); backdrop-filter: blur(14px); color: var(--muted); font-size: .84rem; }
.hero-badge strong { display: block; margin-bottom: 2px; color: var(--fg); }

.stats { border-bottom: 1px solid var(--border); background: var(--bg); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 25px 24px; border-right: 1px solid var(--border); }
.stat:first-child { padding-left: 0; }
.stat:last-child { border-right: 0; }
.stat strong { display: block; margin-bottom: 2px; font-size: 1rem; font-weight: 620; letter-spacing: -.02em; }
.stat span { color: var(--muted); font-size: .82rem; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
.section-heading > div { max-width: 780px; }
.section-heading p:last-child { margin-bottom: 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); box-shadow: var(--shadow-sm); }
.feature-card { padding: 26px; }
.feature-icon { width: 40px; height: 40px; display: grid; place-items: center; margin-bottom: 42px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--fg); }
.feature-icon svg { width: 21px; height: 21px; }
.feature-card p:last-child { margin-bottom: 0; color: var(--muted); }

.product-card { overflow: hidden; display: flex; flex-direction: column; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.product-card:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.product-image { min-height: 255px; display: grid; place-items: center; padding: 24px; border-bottom: 1px solid var(--border); background: var(--surface); }
.product-image img { max-height: 235px; object-fit: contain; }
.product-body { display: flex; flex: 1; flex-direction: column; padding: 22px; }
.product-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 13px; }
.tag { display: inline-flex; align-items: center; min-height: 25px; padding: 3px 8px; border: 1px solid var(--border); border-radius: 999px; background: var(--bg); color: var(--fg); font-size: .7rem; font-weight: 600; }
.tag--plain { background: var(--surface); color: var(--muted); }
.product-body p { color: var(--muted); }
.product-body .btn { margin-top: auto; align-self: flex-start; }

.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 72px; }
.split-media { min-height: 420px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background-color: var(--surface); background-image: radial-gradient(var(--border) 1px, transparent 1px); background-size: 18px 18px; }
.split-media img { width: 100%; height: 100%; object-fit: contain; padding: 30px; }
.check-list { list-style: none; margin: 25px 0 31px; padding: 0; display: grid; gap: 13px; }
.check-list li { position: relative; padding-left: 28px; color: var(--muted-strong); }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--fg); font-weight: 800; }

.cta-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 32px; padding: 38px 40px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--inverse-bg); color: var(--inverse-fg); }
.cta-panel h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
.cta-panel p { max-width: 680px; margin-bottom: 0; color: var(--inverse-muted); }
.cta-panel .btn--secondary { border-color: transparent; background: var(--inverse-fg); color: var(--inverse-bg); }

.page-hero {
  padding: 86px 0 76px;
  border-bottom: 1px solid var(--border);
  background-color: var(--surface);
  background-image: linear-gradient(to right, var(--grid-line) 1px, transparent 1px), linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 42px 42px;
}
.page-hero h1 { max-width: 930px; font-size: clamp(2.6rem, 5.5vw, 5rem); text-wrap: balance; }
.breadcrumbs { display: flex; gap: 8px; margin-bottom: 26px; color: var(--muted); font-size: .84rem; }
.breadcrumbs a:hover { color: var(--fg); }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filter-btn { min-height: 38px; padding: 7px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--muted); font-size: .85rem; font-weight: 560; }
.filter-btn:hover { border-color: var(--border-strong); color: var(--fg); }
.filter-btn.is-active { border-color: var(--fg); background: var(--fg); color: var(--bg); }
.product-card[hidden] { display: none; }

.model-detail { padding: 62px 0; border-bottom: 1px solid var(--border); }
.model-detail:last-child { border-bottom: 0; }
.model-grid { display: grid; grid-template-columns: minmax(300px, .88fr) minmax(0, 1.12fr); gap: 58px; align-items: center; }
.model-visual { min-height: 390px; display: grid; place-items: center; padding: 28px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.model-visual img { max-height: 350px; object-fit: contain; }
.spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin-top: 24px; }
.spec { padding: 14px 15px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.spec strong { display: block; margin-bottom: 2px; font-size: .84rem; font-weight: 620; }
.spec span { color: var(--muted); font-size: .84rem; }

.category-card { overflow: hidden; }
.category-visual { height: 170px; display: grid; place-items: center; border-bottom: 1px solid var(--border); background: var(--surface); color: var(--fg); }
.category-visual svg { width: 66px; height: 66px; stroke: currentColor; }
.category-body { padding: 22px; }
.category-body p { margin-bottom: 0; color: var(--muted); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; min-width: 720px; border-collapse: collapse; background: var(--bg); }
th, td { padding: 16px 18px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--surface); color: var(--muted); font-size: .75rem; font-weight: 620; letter-spacing: .06em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }

.about-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 34px; }
.value { padding: 20px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface); }
.value strong { display: block; margin-bottom: 7px; }
.value p { margin: 0; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
.contact-card { padding: 25px; }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; }
.contact-item { display: grid; grid-template-columns: 40px 1fr; gap: 14px; }
.contact-item-icon { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--fg); }
.contact-item strong { display: block; }
.contact-item p, .contact-item address { margin: 3px 0 0; color: var(--muted); font-style: normal; }
.map-frame { width: 100%; min-height: 390px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); filter: grayscale(.15); }
html[data-theme="dark"] .map-frame { filter: grayscale(.35) invert(.88) hue-rotate(180deg); }

.form-card { padding: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field--full { grid-column: 1 / -1; }
label { font-size: .86rem; font-weight: 600; }
input, textarea, select { width: 100%; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); padding: 11px 12px; box-shadow: inset 0 1px 0 rgba(0,0,0,.02); }
input::placeholder, textarea::placeholder { color: var(--muted); }
textarea { min-height: 150px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.form-note { margin-top: 13px; color: var(--muted); font-size: .82rem; }
.form-status { display: none; margin: 16px 0 0; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: .88rem; }
.form-status.is-visible { display: block; }
.form-status.is-error { background: rgba(180,35,24,.08); color: var(--danger); }
.form-status.is-success { background: rgba(21,128,61,.08); color: var(--success); }

.faq { border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-button { width: 100%; display: flex; justify-content: space-between; gap: 18px; padding: 22px 2px; border: 0; background: transparent; color: var(--fg); text-align: left; font-weight: 610; }
.faq-button span:last-child { color: var(--muted); }
.faq-panel { display: none; padding: 0 36px 22px 2px; color: var(--muted); }
.faq-item.is-open .faq-panel { display: block; }

.policy { color: var(--muted-strong); }
.policy h2 { margin-top: 44px; color: var(--fg); font-size: 1.65rem; }
.policy h3 { margin-top: 28px; color: var(--fg); font-size: 1.2rem; }
.policy ul { padding-left: 20px; }
.policy li { margin-bottom: 9px; }
.notice { padding: 18px 20px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface); color: var(--muted-strong); }

.site-footer { border-top: 1px solid var(--border); background: var(--bg); color: var(--fg); }
.footer-grid { display: grid; grid-template-columns: 1.35fr .8fr .8fr 1fr; gap: 46px; padding: 64px 0 44px; }
.footer-brand p { max-width: 360px; color: var(--muted); }
.footer-title { margin-bottom: 17px; color: var(--muted); font-size: .73rem; font-weight: 620; letter-spacing: .08em; text-transform: uppercase; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-links a, .footer-address { color: var(--muted-strong); font-style: normal; }
.footer-links a:hover { color: var(--fg); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0 28px; border-top: 1px solid var(--border); color: var(--muted); font-size: .8rem; }

.not-found { min-height: 70vh; display: grid; place-items: center; text-align: center; }
.not-found strong { display: block; color: var(--fg); font-size: clamp(5rem, 15vw, 9rem); font-weight: 700; line-height: 1; letter-spacing: -.08em; }

@media (max-width: 1060px) {
  .site-nav { position: absolute; top: calc(100% + 1px); left: 20px; right: 20px; display: none; flex-direction: column; align-items: stretch; padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-elevated); box-shadow: var(--shadow-md); backdrop-filter: blur(18px); }
  .site-nav.is-open { display: flex; }
  .nav-link { padding: 10px 12px; }
  .nav-cta { margin: 6px 0 0; }
  .theme-toggle { margin-left: auto; }
  .menu-toggle { display: block; margin-left: 4px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { min-height: 470px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-grid > :last-child { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .container, .narrow { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 72px 0; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .hero { padding: 70px 0 76px; background-size: 30px 30px, 30px 30px, auto; }
  .hero-grid { gap: 38px; }
  .hero-media { min-height: 365px; }
  .hero-badge { left: 14px; right: 14px; bottom: 14px; max-width: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid var(--border); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(3), .stat:nth-child(4) { border-bottom: 0; }
  .stat:nth-child(3) { padding-left: 0; }
  .grid-3, .about-values { grid-template-columns: 1fr; }
  .cta-panel { grid-template-columns: 1fr; padding: 30px 24px; }
  .form-grid { grid-template-columns: 1fr; }
  .field--full { grid-column: auto; }
  .spec-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .footer-grid > :first-child, .footer-grid > :last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 540px) {
  .header-inner { min-height: 62px; }
  .brand { margin-right: 4px; }
  .brand img { width: 32px; height: 32px; }
  .brand span { max-width: 180px; font-size: .88rem; }
  .brand small { display: none; }
  .theme-toggle, .menu-toggle { width: 36px; height: 36px; }
  .site-nav { left: 14px; right: 14px; }
  .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat, .stat:nth-child(3) { padding-left: 0; border-right: 0; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: 0; }
  .hero-media { min-height: 315px; }
  .product-image { min-height: 230px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > * { grid-column: auto !important; }
}

@media (max-width: 400px) {
  .brand span { max-width: 148px; font-size: .8rem; }
  .theme-toggle, .menu-toggle { width: 34px; height: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* Premium typography and proportion-safe hero media */
:root {
  --font-display: "Manrope", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-technical: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

body {
  font-family: var(--font-body);
  letter-spacing: -0.008em;
}

h1,
h2,
h3,
h4,
.brand,
.stat strong,
.hero-badge strong,
.contact-item strong,
.value strong,
.not-found strong {
  font-family: var(--font-display);
}

h1,
h2,
h3,
h4 {
  font-variation-settings: "wght" 700;
}

h1 {
  font-weight: 800;
  line-height: 0.99;
  letter-spacing: -0.061em;
}

h2 {
  font-weight: 750;
  line-height: 1.04;
  letter-spacing: -0.052em;
}

h3 {
  font-weight: 700;
  letter-spacing: -0.038em;
}

.eyebrow,
.brand small,
.tag,
.breadcrumbs,
.footer-title,
.filter-btn,
th,
.spec strong {
  font-family: var(--font-technical);
}

.eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.095em;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.035em;
}

.brand small {
  font-weight: 500;
  letter-spacing: 0.055em;
}

.nav-link,
.btn,
input,
textarea,
select,
label,
.faq-button {
  font-family: var(--font-body);
}

.hero-copy .lead {
  max-width: 650px;
}

.hero-media {
  min-height: 0;
  aspect-ratio: 5 / 6;
  overflow: hidden;
  isolation: isolate;
  border-radius: 20px;
}

.hero-media::before {
  z-index: 0;
}

.hero-product-frame {
  position: absolute;
  inset: 32px 28px 76px;
  z-index: 1;
  display: grid;
  place-items: center;
}

.hero-product-frame img,
html[data-theme="dark"] .hero-product-frame img {
  position: static;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  transform: none;
  filter: drop-shadow(0 26px 34px rgba(0, 0, 0, 0.18));
}

html[data-theme="dark"] .hero-product-frame img {
  filter: drop-shadow(0 28px 38px rgba(0, 0, 0, 0.62));
}

.hero-badge {
  z-index: 2;
}

@media (max-width: 1060px) {
  .hero-media {
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .hero-product-frame {
    inset: 30px 72px 70px;
  }
}

@media (max-width: 760px) {
  h1 {
    letter-spacing: -0.052em;
  }

  .hero-media {
    min-height: 0;
    aspect-ratio: 5 / 4;
  }

  .hero-product-frame {
    inset: 24px 30px 74px;
  }
}

@media (max-width: 540px) {
  .hero-media {
    min-height: 0;
    aspect-ratio: 1 / 1;
  }

  .hero-product-frame {
    inset: 20px 18px 84px;
  }
}

/* Refined interface details */
.eyebrow {
  gap: 0;
}

.eyebrow::before {
  display: none;
}

.btn--accent {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 24%, transparent);
}

.btn--accent:hover {
  border-color: var(--accent-hover);
  background: var(--accent-hover);
  color: #ffffff;
  box-shadow: 0 10px 30px color-mix(in srgb, var(--accent) 30%, transparent);
}

.btn--maps {
  min-height: 46px;
  padding-inline: 18px;
  font-weight: 650;
  letter-spacing: -0.012em;
}

.site-footer .btn--maps {
  margin-top: 8px;
}

.product-meta {
  align-items: center;
  gap: 0;
  margin-bottom: 14px;
}

.tag,
.tag--plain {
  display: inline;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-technical);
  font-size: 0.67rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.product-meta .tag + .tag::before {
  content: "|";
  display: inline-block;
  margin: 0 10px;
  color: var(--border-strong);
  font-weight: 400;
}

.hero-media {
  border: 0;
  background:
    radial-gradient(circle at 52% 45%, var(--accent-soft), transparent 52%),
    var(--surface);
  box-shadow: none;
  backdrop-filter: none;
}

.hero-media::before {
  display: none;
}

.hero-badge {
  border: 0;
  border-radius: 12px;
  background: var(--surface-elevated);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.14);
}

html[data-theme="dark"] .hero-badge {
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.5);
}

.faq-button {
  transition: color 0.2s ease;
}

.faq-button:hover {
  color: var(--accent);
}

.faq-button [data-faq-symbol] {
  display: inline-grid;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  place-items: center;
  transition: color 0.2s ease, transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.is-open .faq-button [data-faq-symbol] {
  transform: rotate(180deg);
}

.faq-panel {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  padding: 0 36px 0 2px;
  color: var(--muted);
  opacity: 0;
  transition:
    grid-template-rows 0.38s cubic-bezier(0.22, 1, 0.36, 1),
    padding-bottom 0.38s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.22s ease;
}

.faq-panel-inner {
  min-height: 0;
  overflow: hidden;
}

.faq-panel-inner p {
  margin: 0;
}

.faq-item.is-open .faq-panel {
  display: grid;
  grid-template-rows: 1fr;
  padding-bottom: 24px;
  opacity: 1;
}

@media (max-width: 540px) {
  .btn--maps {
    width: 100%;
  }

  .hero-badge {
    background: var(--surface-elevated);
  }
}

/* Animated plus-to-minus control for the About accordion */
.faq-button [data-faq-symbol] {
  position: relative;
  font-size: 0;
  transform: none;
}

.faq-button [data-faq-symbol]::before,
.faq-button [data-faq-symbol]::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
}

.faq-button [data-faq-symbol]::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.is-open .faq-button [data-faq-symbol] {
  transform: none;
}

.faq-item.is-open .faq-button [data-faq-symbol]::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg) scaleX(0);
}

.product-meta .tag { white-space: nowrap; font-size: 0.62rem; letter-spacing: 0.075em; }
.product-meta .tag + .tag::before { margin-inline: 7px; }