/* ==========================================================================
   superkeys — design system
   Precision hardware, presented in a museum-gallery voice.
   One accent colour, two story modes (light / dark), near-zero chrome.
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  /* surface */
  --canvas:          #ffffff;
  --parchment:       #f5f5f7;
  --pearl:           #fafafc;
  --tile-1:          #1d1d1f;
  --tile-2:          #272729;
  --tile-3:          #2a2a2c;
  --black:           #000000;

  /* ink */
  --ink:             #1d1d1f;
  --ink-80:          #333333;
  --ink-48:          #6e6e73;
  --on-dark:         #ffffff;
  --on-dark-muted:   #cccccc;
  --on-dark-faint:   #86868b;

  /* lines */
  --hairline:        #e0e0e0;
  --hairline-dark:   rgba(255, 255, 255, 0.14);

  /* accent — the single interactive colour */
  --accent:          #0066cc;
  --accent-hover:    #0071e3;
  --accent-on-dark:  #2997ff;

  /* type */
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont,
                  "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
  --font-text:    "SF Pro Text", -apple-system, BlinkMacSystemFont,
                  "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  --font-mono:    "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;

  /* geometry */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 28px;
  --pill: 9999px;

  /* rhythm */
  --pad-x: clamp(20px, 5vw, 48px);
  --tile-y: clamp(64px, 9vw, 128px);
  --nav-h: 48px;
  --subnav-h: 52px;

  /* elevation — exactly one shadow in the whole system */
  --lift: 0 3px 30px rgba(0, 0, 0, 0.22);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + var(--subnav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.022em;
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
hr { border: 0; border-top: 1px solid var(--hairline); margin: 0; }

:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 3px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--canvas); color: var(--ink);
  padding: 10px 16px; border-radius: var(--r-sm); font-size: 14px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- typography scale ---------- */
.display-hero {
  font-family: var(--font-display);
  font-size: clamp(38px, 6.1vw, 76px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.021em;
  text-wrap: balance;
}

.display-lg {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.7vw, 46px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.018em;
  text-wrap: balance;
}

.display-md {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.016em;
}

.lead {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.9vw, 27px);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.body-lg { font-size: 19px; line-height: 1.5; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.tile--dark .eyebrow, .tile--black .eyebrow { color: var(--accent-on-dark); }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.01em;
}

.muted { color: var(--ink-48); }
.tile--dark .muted, .tile--black .muted { color: var(--on-dark-faint); }

.measure { max-width: 34ch; }
.measure-wide { max-width: 56ch; }
.center { text-align: center; margin-inline: auto; }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.wrap--narrow { max-width: 780px; }
.wrap--wide { max-width: 1360px; }

.tile { padding-block: var(--tile-y); position: relative; }
.tile--light      { background: var(--canvas); color: var(--ink); }
.tile--parchment  { background: var(--parchment); color: var(--ink); }
.tile--dark       { background: var(--tile-2); color: var(--on-dark); }
.tile--black      { background: var(--black); color: var(--on-dark); }
.tile--flush-top  { padding-top: 0; }

.stack-sm > * + * { margin-top: 12px; }
.stack    > * + * { margin-top: 20px; }
.stack-lg > * + * { margin-top: 34px; }

.grid { display: grid; gap: clamp(16px, 2.2vw, 28px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}
.split--wide-text { grid-template-columns: 1.15fr 0.85fr; }

/* ---------- global nav ---------- */
.nav-global {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(0, 0, 0, 0.8);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  color: var(--on-dark);
}
.nav-global.is-scrolled { background: rgba(0, 0, 0, 0.92); }

.nav-inner {
  height: 100%;
  max-width: 1120px; margin-inline: auto;
  padding-inline: var(--pad-x);
  display: flex; align-items: center; gap: 28px;
}

.brand {
  display: inline-flex; align-items: center; gap: 9px;
  color: var(--on-dark); text-decoration: none;
  font-family: var(--font-display);
  font-size: 16px; font-weight: 600; letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; opacity: 0.86; }
.brand__mark { width: 22px; height: 22px; flex: none; }

.nav-links {
  display: flex; align-items: center; gap: 26px;
  margin-left: auto;
}
.nav-links a {
  font-size: 12.5px; letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.82); text-decoration: none;
  transition: color 0.2s var(--ease);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; text-decoration: none; }

.nav-cta {
  font-size: 12.5px; padding: 6px 15px;
  background: var(--accent); color: #fff;
  border-radius: var(--pill); text-decoration: none;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.nav-cta:hover { background: var(--accent-hover); text-decoration: none; }
.nav-cta:active { transform: scale(0.97); }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none; border: 0; cursor: pointer;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 18px; height: 1.5px; background: #fff;
  position: relative; transition: transform 0.25s var(--ease), opacity 0.2s;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 1.5px;
  background: #fff; transition: transform 0.25s var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top: 6px; transform-origin: center; }
.nav-global.is-open .nav-toggle span { background: transparent; }
.nav-global.is-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav-global.is-open .nav-toggle span::after  { transform: translateY(-6px) rotate(-45deg); }

.nav-drawer {
  display: none;
  position: absolute; left: 0; right: 0; top: var(--nav-h);
  background: rgba(0, 0, 0, 0.96);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  padding: 8px var(--pad-x) 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.nav-drawer a {
  display: block; padding: 14px 0;
  color: rgba(255, 255, 255, 0.9); text-decoration: none;
  font-size: 20px; font-family: var(--font-display); font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-drawer a:last-child { border-bottom: 0; }

/* ---------- sub nav ---------- */
.nav-sub {
  position: sticky; top: var(--nav-h); z-index: 90;
  min-height: var(--subnav-h);
  background: rgba(245, 245, 247, 0.78);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  display: flex; align-items: center;
}
.nav-sub__inner {
  width: 100%; max-width: 1120px; margin-inline: auto;
  padding-inline: var(--pad-x);
  display: flex; align-items: center; gap: 24px;
  overflow-x: auto; scrollbar-width: none;
}
.nav-sub__inner::-webkit-scrollbar { display: none; }

.nav-sub__title {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 600; letter-spacing: -0.02em;
  white-space: nowrap;
}
.nav-sub__links { display: flex; gap: 22px; margin-left: auto; }
.nav-sub__links a {
  font-size: 13px; color: var(--ink-80); text-decoration: none; white-space: nowrap;
  transition: color 0.2s var(--ease);
}
.nav-sub__links a:hover { color: var(--accent); text-decoration: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-size: 15px; line-height: 1;
  padding: 13px 24px;
  border: 0; border-radius: var(--pill);
  cursor: pointer; text-decoration: none;
  transition: background 0.22s var(--ease), color 0.22s var(--ease),
              transform 0.18s var(--ease), box-shadow 0.22s var(--ease);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.975); }

.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hover); }

.btn--ghost {
  background: var(--canvas); color: var(--accent);
  border: 1px solid var(--hairline);
}
.btn--ghost:hover { border-color: var(--accent); }

.tile--dark .btn--ghost, .tile--black .btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  color: #fff; border-color: rgba(255, 255, 255, 0.24);
}
.tile--dark .btn--ghost:hover, .tile--black .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.4);
}

.btn--sm { font-size: 13px; padding: 9px 18px; }
.btn--wide { width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.center .btn-row { justify-content: center; }

.link-more {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 15px; color: var(--accent);
}
.link-more::after {
  content: "›"; font-size: 1.15em; line-height: 1;
  transition: transform 0.2s var(--ease);
}
.link-more:hover { text-decoration: none; }
.link-more:hover::after { transform: translateX(3px); }
.tile--dark .link-more, .tile--black .link-more { color: var(--accent-on-dark); }

/* ---------- tiles & media ---------- */
.tile__media {
  width: 100%;
  position: relative;
  overflow: hidden;
  background: #0e0e0f;
}
.tile__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.ratio-21-9 { aspect-ratio: 21 / 9; }
.ratio-16-9 { aspect-ratio: 16 / 9; }
.ratio-4-3  { aspect-ratio: 4 / 3; }
.ratio-3-2  { aspect-ratio: 3 / 2; }
.ratio-1-1  { aspect-ratio: 1 / 1; }

.bleed { margin-inline: calc(50% - 50vw); width: 100vw; }
.bleed img { width: 100%; }

.media-lift { box-shadow: var(--lift); }

/* ---------- product cards ---------- */
.card {
  display: flex; flex-direction: column;
  background: var(--canvas);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.card:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(0, 0, 0, 0.10); }
.card__media { overflow: hidden; background: var(--parchment); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.card:hover .card__media img { transform: scale(1.03); }
.card__body {
  padding: 26px 26px 30px;
  display: flex; flex-direction: column; gap: 10px;
  flex: 1;
}
.card__body .link-more { margin-top: auto; padding-top: 14px; }

.tile--dark .card, .tile--black .card {
  background: var(--tile-3);
  border-color: var(--hairline-dark);
}

/* big merchandising tile (photo top, copy below) */
.merch { display: flex; flex-direction: column; gap: 26px; }
.merch__media { border-radius: var(--r-lg); overflow: hidden; }
.merch__media img { width: 100%; height: 100%; object-fit: cover; }
.merch__copy { display: flex; flex-direction: column; gap: 12px; }

/* ---------- spec table ---------- */
.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.spec caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-48);
  padding-bottom: 14px;
}
.spec th, .spec td {
  text-align: left;
  padding: 14px 16px 14px 0;
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
}
.spec thead th {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  font-weight: 500; color: var(--ink-48);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 10px;
}
.spec tbody th {
  font-weight: 400; color: var(--ink-48); width: 34%;
  font-size: 13.5px;
}
.spec td { font-variant-numeric: tabular-nums; }
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }

.tile--dark .spec th, .tile--dark .spec td { border-color: var(--hairline-dark); }
.tile--dark .spec thead th { border-color: rgba(255, 255, 255, 0.5); color: var(--on-dark-faint); }
.tile--dark .spec tbody th, .tile--dark .spec caption { color: var(--on-dark-faint); }

/* ---------- stat strip ---------- */
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 44px); font-weight: 600;
  letter-spacing: -0.02em; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat__label { font-size: 13.5px; margin-top: 10px; color: var(--ink-48); }
.tile--dark .stat__label, .tile--black .stat__label { color: var(--on-dark-faint); }

/* ---------- configurator ---------- */
.config {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.config__stage {
  position: sticky; top: calc(var(--nav-h) + var(--subnav-h) + 24px);
  background: var(--parchment);
  border-radius: var(--r-xl);
  padding: clamp(20px, 3vw, 40px);
  border: 1px solid var(--hairline);
}
.config__stage svg { width: 100%; height: auto; }
.config__hint {
  margin-top: 18px; text-align: center;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-48);
}
.config__hint kbd {
  font-family: var(--font-mono); font-size: 11px;
  background: #fff; border: 1px solid var(--hairline);
  border-radius: 5px; padding: 2px 6px; color: var(--ink-80);
}

.config__side { display: flex; flex-direction: column; gap: 30px; }

.field { border: 0; margin: 0; padding: 0; }
.field + .field { margin-top: 28px; padding-top: 26px; border-top: 1px solid var(--hairline); }
.field__legend {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--ink-48); padding: 0 0 14px;
}
.field__note { font-size: 13px; color: var(--ink-48); margin-top: -6px; padding-bottom: 12px; }

.opts { display: grid; gap: 10px; }
.opts--row { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.opt {
  position: relative;
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: var(--canvas);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease),
              box-shadow 0.2s var(--ease);
}
.opt:hover { border-color: #c9c9ce; }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt__swatch {
  flex: none; width: 22px; height: 22px; border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  margin-top: 1px;
}
.opt__text { display: flex; flex-direction: column; gap: 3px; }
.opt__name { font-size: 14.5px; font-weight: 500; }
.opt__meta { font-size: 12.5px; color: var(--ink-48); }
.opt__price { margin-left: auto; font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-48); white-space: nowrap; }

.opt:has(input:checked) {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
  background: #fbfcfe;
}
.opt:has(input:focus-visible) { outline: 2px solid var(--accent-hover); outline-offset: 2px; }
.opt--compact { padding: 12px 14px; align-items: center; }
.opt--compact .opt__text { flex-direction: row; gap: 8px; align-items: baseline; }

/* summary box */
.summary {
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 24px;
  background: var(--pearl);
  display: flex; flex-direction: column; gap: 16px;
}
.summary__rows { display: flex; flex-direction: column; gap: 11px; }
.summary__row { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; }
.summary h3 { margin-bottom: 4px; }
.summary__row span:last-child { font-variant-numeric: tabular-nums; }
.summary__total {
  display: flex; justify-content: space-between; align-items: baseline;
  border-top: 1px solid var(--hairline); padding-top: 16px;
  font-family: var(--font-display); font-size: 26px; font-weight: 600;
  letter-spacing: -0.02em;
}
.summary__note { font-size: 12.5px; color: var(--ink-48); }

/* side view diagram */
.sideview { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--hairline); }
.sideview svg { width: 100%; max-width: 320px; height: auto; margin-inline: auto; }
.sideview__cap {
  text-align: center; font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-48);
  margin-top: 12px;
}

/* ---------- keycap key (legend highlight) ---------- */
.kc { transition: fill 0.16s var(--ease), transform 0.16s var(--ease); transform-origin: center; }
.kc.is-lit { fill: var(--accent) !important; }
.kc.is-lit ~ .kc__legend { fill: #fff !important; }
.config__hint[data-live="true"] { color: var(--accent); }

/* ---------- accordion ---------- */
.faq { border-top: 1px solid var(--hairline); }
.faq details { border-bottom: 1px solid var(--hairline); }
.faq summary {
  list-style: none; cursor: pointer;
  padding: 22px 44px 22px 0;
  position: relative;
  font-size: 17px; font-weight: 500; letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 8px; top: 30px;
  width: 11px; height: 11px;
  border-right: 1.5px solid var(--ink-48);
  border-bottom: 1.5px solid var(--ink-48);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg); top: 34px; }
.faq .faq__body { padding: 0 0 26px; max-width: 62ch; color: var(--ink-80); font-size: 15.5px; }
.faq .faq__body > * + * { margin-top: 12px; }
.faq summary:hover { color: var(--accent); }
.tile--dark .faq, .tile--dark .faq details { border-color: var(--hairline-dark); }

/* ---------- steps ---------- */
.steps { counter-reset: step; display: grid; gap: 26px; }
.steps li {
  counter-increment: step;
  padding-left: 54px; position: relative;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 2px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.08em; color: var(--accent);
}
.steps h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.steps p { font-size: 15px; color: var(--ink-48); }
.tile--dark .steps p { color: var(--on-dark-faint); }

/* ---------- footer ---------- */
.site-foot {
  background: var(--parchment);
  color: var(--ink-48);
  font-size: 12px;
  padding-block: 56px 40px;
  border-top: 1px solid var(--hairline);
}
.site-foot__cols {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--hairline);
}
.site-foot h4 {
  font-size: 12px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.01em; margin-bottom: 12px;
}
.site-foot li + li { margin-top: 8px; }
.site-foot a { color: var(--ink-48); text-decoration: none; }
.site-foot a:hover { color: var(--ink); text-decoration: underline; }
.site-foot__legal {
  padding-top: 24px;
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  justify-content: space-between;
}
.site-foot__legal nav { display: flex; flex-wrap: wrap; gap: 18px; }

/* ---------- forms ---------- */
.form { display: grid; gap: 18px; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field-label {
  display: block;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-48);
  margin-bottom: 8px;
}
.input, .select, .textarea {
  width: 100%;
  font-family: var(--font-text); font-size: 16px;
  color: var(--ink);
  padding: 13px 15px;
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.16);
}
.textarea { min-height: 148px; resize: vertical; }
.form__note { font-size: 12.5px; color: var(--ink-48); }
.form__status {
  display: none; gap: 10px; align-items: flex-start;
  padding: 16px 18px; border-radius: var(--r-md);
  background: #eef6ff; border: 1px solid #cfe4fb;
  font-size: 14px; color: #0b4a86;
}
.form__status.is-visible { display: flex; }

.tile--dark a:not(.btn):not(.brand):not(.nav-cta),
.tile--black a:not(.btn):not(.brand):not(.nav-cta) { color: var(--accent-on-dark); }

/* ---------- notice / pill ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 7px 13px; border-radius: var(--pill);
  background: rgba(0, 102, 204, 0.1); color: var(--accent);
}
.tile--dark .pill, .tile--black .pill {
  background: rgba(41, 151, 255, 0.14); color: var(--accent-on-dark);
}
.pill::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: currentColor; flex: none;
}

.notice {
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 18px;
  font-size: 14.5px; color: var(--ink-80);
}
.tile--dark .notice { color: var(--on-dark-muted); }

/* ---------- hero ---------- */
.hero__copy {
  display: flex; flex-direction: column; align-items: center; gap: 22px;
  text-align: center;
  padding-bottom: clamp(40px, 6vw, 72px);
}
.hero__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #0e0e0f;
}
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero__badge {
  position: absolute; left: 50%; transform: translateX(-50%);
  bottom: clamp(18px, 4vw, 40px);
}

/* ---------- reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
}
.js [data-reveal].is-in {
  opacity: 1; transform: none;
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0ms);
}

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .config { grid-template-columns: minmax(0, 1fr); }
  .config__stage { position: static; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 834px) {
  :root { --nav-h: 48px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-drawer { display: none; }
  .nav-global.is-open .nav-drawer { display: block; }
  .split, .split--wide-text { grid-template-columns: minmax(0, 1fr); }
  .split--media-first .split__media { order: -1; }
  .site-foot__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .spec tbody th { width: 42%; }
}

@media (max-width: 700px) {
  /* a four-column data table stays readable by scrolling, not by squashing */
  .spec-scroll { overflow-x: auto; overscroll-behavior-x: contain; }
  .spec-scroll .spec { min-width: 540px; }
  .spec-scroll .spec tbody th { width: 30%; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .hero__media { aspect-ratio: 4 / 3; }
  .form__row { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .nav-sub__links { gap: 18px; }
  .nav-sub__title { font-size: 15px; }
  .spec { font-size: 13px; }
  .spec th, .spec td { padding: 12px 10px 12px 0; }
  .summary { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  .nav-global, .nav-sub, .site-foot { display: none; }
  .tile { padding-block: 24px; }
}