/* ==========================================================================
   LSW Corp — site styles
   1. Fonts & tokens      6. Systems / products      11. Page head
   2. Base & type         7. Split / applications    12. Catalog & PDP
   3. Buttons             8. Process / reasons       13. Contact & forms
   4. Header & nav        9. Cert / CTA band         14. Motion & misc
   5. Hero / ticker      10. Footer                  15. Responsive
   ========================================================================== */

/* 1. Fonts ---------------------------------------------------------------- */

@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/archivo-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/archivo-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/archivo-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/archivo-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('../fonts/archivo-800.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/inter-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/inter-600.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/plexmono-400.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/plexmono-500.woff2') format('woff2');
}

:root {
  --ink: #0b0e13;
  --ink-2: #141a23;
  --steel: #232b36;
  --slate: #46566a;
  --paper: #f7f5f0;
  --sand: #ede8df;
  --sand-2: #e3dcd0;
  --line: rgba(11, 14, 19, 0.14);
  --line-soft: rgba(11, 14, 19, 0.08);
  --line-dark: rgba(247, 245, 240, 0.16);
  --muted: #6f6b63;
  --muted-dark: #a9a69f;
  --accent: #e4572a;
  --accent-deep: #b8421e;
  --ok: #2f6b4f;

  --font-display: 'Archivo', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Cascadia Mono', Consolas, monospace;

  --wrap: 1360px;
  --gut: clamp(20px, 4.6vw, 56px);
  --section-y: clamp(72px, 8.4vw, 132px);
  --r: 2px;
  --ease: cubic-bezier(0.22, 0.7, 0.2, 1);
}

/* 2. Base & type ---------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.62;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0 0 1.1em;
}

p:last-child {
  margin-bottom: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin: 0;
}

h1 {
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 700;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(28px, 3.4vw, 46px);
}

h3 {
  font-size: clamp(19px, 1.7vw, 23px);
  letter-spacing: -0.02em;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
}

::selection {
  background: var(--accent);
  color: var(--ink);
}

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
}

.mono {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

.skip {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  transition: top 0.2s;
}
.skip:focus {
  top: 12px;
}

/* eyebrow label */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 22px;
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}
.eyebrow span {
  color: var(--accent-deep);
}
.on-dark .eyebrow,
.section--ink .eyebrow {
  color: var(--muted-dark);
}

.lede {
  font-size: clamp(17px, 1.35vw, 19px);
  line-height: 1.6;
  color: #3d4249;
  max-width: 58ch;
}
.on-dark .lede,
.section--ink .lede {
  color: #c9c6bf;
}

.hairline {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* 3. Buttons -------------------------------------------------------------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-bd: var(--ink);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 17px 26px;
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1;
  overflow: hidden;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn > * {
  position: relative;
  z-index: 1;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
  z-index: 0;
}
.btn:hover::after {
  transform: scaleX(1);
}
.btn:hover {
  color: var(--paper);
  border-color: var(--ink);
}
.btn svg {
  width: 14px;
  height: 14px;
  flex: none;
  transition: transform 0.35s var(--ease);
}
.btn:hover svg {
  transform: translateX(3px);
}

.btn--accent {
  --btn-bg: var(--accent);
  --btn-bd: var(--accent);
  --btn-fg: var(--ink);
}
.btn--accent::after {
  background: var(--ink);
}
.btn--accent:hover {
  color: var(--paper);
  border-color: var(--ink);
}

.btn--ghost {
  --btn-bd: var(--line);
}
.on-dark .btn--ghost,
.section--ink .btn--ghost {
  --btn-bd: var(--line-dark);
  --btn-fg: var(--paper);
}
.on-dark .btn--ghost::after,
.section--ink .btn--ghost::after {
  background: var(--paper);
}
.on-dark .btn--ghost:hover,
.section--ink .btn--ghost:hover {
  color: var(--ink);
  border-color: var(--paper);
}

.btn--sm {
  padding: 13px 18px;
  font-size: 10.5px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding-bottom: 4px;
  border-bottom: 1px solid currentColor;
  transition: gap 0.3s var(--ease), color 0.25s;
}
.link-arrow svg {
  width: 14px;
  height: 14px;
  flex: none;
}
.link-arrow:hover {
  gap: 16px;
  color: var(--accent-deep);
}

/* 4. Header --------------------------------------------------------------- */

.topbar {
  background: var(--ink);
  color: var(--muted-dark);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 38px;
}
.topbar a {
  transition: color 0.2s;
}
.topbar a:hover {
  color: var(--paper);
}
.topbar__meta {
  display: flex;
  align-items: center;
  gap: 22px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
}
.topbar__meta em {
  font-style: normal;
  color: var(--accent);
}
.topbar__links {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: none;
}
.lang {
  display: flex;
  align-items: center;
  gap: 8px;
}
.lang a {
  padding: 2px 0;
  border-bottom: 1px solid transparent;
}
.lang a[aria-current='true'] {
  color: var(--paper);
  border-bottom-color: var(--accent);
}
.lang span {
  opacity: 0.35;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s, background 0.3s;
}
.site-header.is-scrolled {
  box-shadow: 0 10px 30px -18px rgba(11, 14, 19, 0.45);
}
.header__inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 32px;
  height: 78px;
  transition: height 0.3s var(--ease);
}
.site-header.is-scrolled .header__inner {
  height: 66px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  padding-right: 8px;
}
.brand__mark {
  width: 30px;
  height: auto;
  flex: none;
}
.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.02em;
  line-height: 1;
}
.brand__sub {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
.brand__lockup {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nav {
  display: flex;
  align-items: stretch;
  gap: 2px;
  margin-left: auto;
}
.nav__item {
  position: relative;
  display: flex;
  align-items: stretch;
}
.nav__link {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 16px;
  font-size: 14.5px;
  font-weight: 500;
  color: #2a2e34;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav__link:hover,
.nav__item.is-open > .nav__link {
  color: var(--accent-deep);
}
.nav__link[aria-current='page'] {
  border-bottom-color: var(--ink);
}
.nav__link .caret {
  width: 8px;
  height: 8px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.25s;
  opacity: 0.6;
}
.nav__item.is-open .caret {
  transform: rotate(225deg) translateY(-2px);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

/* mega menu */
.mega {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 8px);
  width: min(920px, calc(100vw - 64px));
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 2px solid var(--ink);
  padding: 34px 34px 30px;
  display: grid;
  grid-template-columns: 1.15fr 1.15fr 1fr 0.95fr;
  gap: 34px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s var(--ease), transform 0.28s var(--ease), visibility 0.22s;
  box-shadow: 0 40px 60px -40px rgba(11, 14, 19, 0.4);
}
.nav__item.is-open .mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.mega__title {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 12px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.mega__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.2s, padding 0.2s;
}
.mega__list a:hover {
  color: var(--accent-deep);
  padding-left: 5px;
}
.mega__list span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--muted);
  flex: none;
}
.mega__feature {
  background: var(--ink);
  color: var(--paper);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
}
.mega__feature h4 {
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.15;
  font-weight: 600;
}
.mega__feature p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted-dark);
  margin-top: 10px;
}
.mega__feature .link-arrow {
  font-size: 10px;
  align-self: flex-start;
}

/* burger + drawer */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  position: relative;
}
.menu-toggle span {
  position: absolute;
  left: 12px;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.menu-toggle span:nth-child(1) {
  top: 17px;
}
.menu-toggle span:nth-child(2) {
  top: 22px;
}
.menu-toggle span:nth-child(3) {
  top: 27px;
}
.menu-toggle[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.menu-toggle[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(420px, 92vw);
  background: var(--paper);
  z-index: 120;
  transform: translateX(100%);
  transition: transform 0.45s var(--ease);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  border-left: 1px solid var(--line);
}
.drawer.is-open {
  transform: translateX(0);
}
.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}
.drawer__close {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  font-size: 20px;
  line-height: 1;
}
.drawer__nav {
  padding: 10px 22px 30px;
}
.drawer__group {
  border-bottom: 1px solid var(--line);
}
.drawer__group > a,
.drawer__group > span {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 17px 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.drawer__sub {
  padding: 0 0 14px 2px;
  display: grid;
  gap: 9px;
}
.drawer__sub a {
  font-size: 14px;
  color: var(--muted);
}
.drawer__cta {
  padding: 24px 22px 40px;
  display: grid;
  gap: 10px;
}
.drawer-scrim {
  position: fixed;
  inset: 0;
  background: rgba(11, 14, 19, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 110;
}
.drawer-scrim.is-open {
  opacity: 1;
  visibility: visible;
}
body.is-locked {
  overflow: hidden;
}

/* 5. Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(247, 245, 240, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(247, 245, 240, 0.055) 1px, transparent 1px);
  background-size: 84px 84px;
  background-position: -1px -1px;
  pointer-events: none;
  z-index: 0;
}
.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  min-height: 640px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gut);
}
.hero__body {
  padding: clamp(48px, 6vw, 92px) 0 clamp(48px, 6vw, 84px);
  padding-right: clamp(24px, 4vw, 64px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 760px;
}
.hero__kicker {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-dark);
  margin-bottom: 30px;
}
.hero__kicker b {
  color: var(--paper);
  font-weight: 500;
}
.hero__kicker i {
  display: block;
  width: 44px;
  height: 1px;
  background: var(--accent);
}
.hero__title {
  font-size: clamp(40px, 5.1vw, 76px);
  line-height: 1;
  letter-spacing: -0.04em;
  font-weight: 700;
  margin: 0 0 26px;
  max-width: 16ch;
  text-wrap: balance;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
}
.hero__lede {
  font-size: clamp(16px, 1.25vw, 18px);
  line-height: 1.6;
  color: #b9b6ae;
  max-width: 50ch;
  margin-bottom: 34px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero__media {
  position: relative;
  min-height: 420px;
  overflow: hidden;
}
@media (min-width: 1024px) {
  .hero__media {
    margin-right: calc(-1 * max(var(--gut), (100vw - var(--wrap)) / 2));
  }
}
.hero__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 50%;
  filter: saturate(0.92) contrast(1.03);
}
.hero__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--ink) 0%, rgba(11, 14, 19, 0.55) 18%, rgba(11, 14, 19, 0) 58%),
    linear-gradient(0deg, rgba(11, 14, 19, 0.55) 0%, rgba(11, 14, 19, 0) 45%);
}
.hero__caption {
  position: absolute;
  z-index: 2;
  left: 24px;
  bottom: 22px;
  right: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(247, 245, 240, 0.75);
}
.hero__caption span {
  color: var(--accent);
}

/* corner marks */
.crosshair {
  position: absolute;
  width: 13px;
  height: 13px;
  z-index: 3;
  pointer-events: none;
}
.crosshair::before,
.crosshair::after {
  content: '';
  position: absolute;
  background: rgba(247, 245, 240, 0.4);
}
.crosshair::before {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
}
.crosshair::after {
  top: 50%;
  left: 0;
  height: 1px;
  width: 100%;
}

/* ticker */
.ticker {
  background: var(--sand);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 15px 0;
}
.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker 42s linear infinite;
}
.ticker:hover .ticker__track {
  animation-play-state: paused;
}
.ticker__track span {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  padding-right: 26px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #3d4249;
  white-space: nowrap;
}
.ticker__track span::after {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--accent);
  transform: rotate(45deg);
}
@keyframes ticker {
  to {
    transform: translateX(-50%);
  }
}

/* stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
}
.stat {
  padding: 34px 0 30px;
  padding-right: 22px;
  border-left: 1px solid var(--line);
  padding-left: clamp(16px, 2.2vw, 30px);
}
.stat:first-child {
  border-left: 0;
  padding-left: 0;
}
.stat__num {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(34px, 3.4vw, 46px);
  letter-spacing: -0.035em;
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.stat__num sup {
  font-size: 0.45em;
  top: -0.75em;
  color: var(--accent);
  font-weight: 500;
}
.stat__label {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* 6. Sections, systems, products ----------------------------------------- */

.section {
  padding: var(--section-y) 0;
  position: relative;
}
.section--sand {
  background: var(--sand);
}
.section--ink {
  background: var(--ink);
  color: var(--paper);
}
.section--tight {
  padding-top: clamp(48px, 5vw, 72px);
}
.section + .section {
  border-top: 1px solid var(--line);
}
.section--ink + .section,
.section--sand + .section {
  border-top: 0;
}

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: clamp(24px, 4vw, 70px);
  align-items: end;
  margin-bottom: clamp(38px, 4.6vw, 64px);
}
.sec-head__title {
  max-width: 20ch;
  text-wrap: balance;
}
.sec-head__side {
  padding-bottom: 6px;
}
.sec-head__side .link-arrow {
  margin-top: 20px;
}

@media (max-width: 520px) {
  h1,
  .hero__title {
    font-size: clamp(30px, 9vw, 42px);
    letter-spacing: -0.03em;
  }
  h2,
  .sec-head__title,
  .split__title {
    font-size: clamp(24px, 6.6vw, 32px);
  }
  .page-head h1 {
    font-size: clamp(34px, 10vw, 44px);
  }
}

/* systems */
.systems {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 30px);
}
.system {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--ink);
  padding-top: 18px;
}
.system__idx {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}
.system__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--sand-2);
}
.system__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease), filter 0.5s;
}
.system:hover .system__media img {
  transform: scale(1.04);
}
.system__body {
  padding-top: 22px;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: 12px;
  flex: 1;
}
.system__title {
  font-family: var(--font-display);
  font-size: clamp(21px, 1.9vw, 26px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
}
.system__desc {
  color: #4a4f56;
  font-size: 15px;
  line-height: 1.6;
}
.system__list {
  display: grid;
  gap: 0;
  margin: 4px 0 10px;
  align-self: end;
}
.system__list li {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 0;
  border-top: 1px solid var(--line-soft);
}

/* product cards */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 1.6vw, 24px);
}
.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: border-color 0.3s, transform 0.4s var(--ease), box-shadow 0.4s;
}
.product-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 24px 40px -34px rgba(11, 14, 19, 0.5);
}
.product-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: #f1eee8;
  background-image: linear-gradient(rgba(11, 14, 19, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 14, 19, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
  background-position: center center;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12%;
  border-bottom: 1px solid var(--line-soft);
}
.product-card__media img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform 0.6s var(--ease);
}
.system__media img[src*='dry-floor-system'] {
  object-fit: contain;
  background: #fff;
}
.product-card__media img[src*='dry-floor-system'] {
  object-fit: contain;
  mix-blend-mode: multiply;
}
.product-card__media img[src*='banner'],
.product-card__media img[src*='cat-'],
.product-card__media img[src*='floor-installed'] {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: cover;
  mix-blend-mode: normal;
}
.product-card:hover .product-card__media img {
  transform: scale(1.04);
}
.product-card {
  transition: transform 0.45s var(--ease), border-color 0.35s var(--ease), box-shadow 0.45s var(--ease);
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--ink);
  box-shadow: 0 26px 48px -34px rgba(20, 22, 26, 0.42);
}
.product-card__sku {
  background: rgba(247, 245, 240, 0.9);
  padding: 3px 6px;
  position: absolute;
  left: 12px;
  top: 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.product-card__body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex: 1;
}
.product-card__family {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.product-card__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
}
.product-card__desc {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--muted);
  flex: 1;
}
.product-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.product-card__arrow {
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}
.product-card:hover .product-card__arrow {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}
.product-card__arrow svg {
  width: 11px;
  height: 11px;
}

/* 7. Split / applications ------------------------------------------------ */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 88px);
  align-items: center;
}
.split--media-right .split__media {
  order: 2;
}
.split__media {
  position: relative;
}
.split__media img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}
.split__media--drawing {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: clamp(14px, 2vw, 26px);
  background-image: radial-gradient(rgba(11, 14, 19, 0.14) 0.6px, transparent 0.6px);
  background-size: 14px 14px;
}
.split__media--drawing img {
  aspect-ratio: auto;
  height: auto;
  object-fit: contain;
  background: #fbfaf7;
  border: 1px solid var(--line-soft);
}
.split__media--doc {
  background: #fff;
  border: 1px solid var(--line);
  padding: clamp(12px, 1.6vw, 20px);
}
.split__media--doc img {
  aspect-ratio: auto;
  object-fit: contain;
}
.split__caption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.split__title {
  margin-bottom: 22px;
  max-width: 18ch;
  text-wrap: balance;
}
.split__body p {
  color: #44494f;
}
.on-dark .split__body p {
  color: #c2bfb8;
}

.spec-list {
  margin-top: 30px;
  border-top: 1px solid var(--line);
}
.on-dark .spec-list {
  border-top-color: var(--line-dark);
}
.spec {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.on-dark .spec {
  border-bottom-color: var(--line-dark);
}
.spec__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
  padding-top: 3px;
}
.spec__title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 3px;
}
.spec__text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}
.on-dark .spec__text {
  color: var(--muted-dark);
}

/* applications tiles */
.apps {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(16px, 1.8vw, 26px);
}
.app-tile {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--ink-2);
  min-height: 300px;
}
.app-tile img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease), opacity 0.4s;
  opacity: 0.92;
}
.app-tile:hover img {
  transform: scale(1.05);
  opacity: 1;
}
.app-tile__cap {
  transition: transform 0.5s var(--ease);
}
.app-tile:hover .app-tile__cap {
  transform: translateY(-6px);
}
.app-tile__num {
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.app-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 14, 19, 0.05) 30%, rgba(11, 14, 19, 0.82) 100%);
}
.app-tile--tall {
  grid-row: span 2;
  min-height: 620px;
}
.app-tile--drawing {
  background: var(--paper);
  border: 1px solid var(--line);
}
.app-tile--drawing img {
  object-fit: contain;
  padding: 7% 6% 22% 6%;
  opacity: 1;
  background: #fbf9f5;
}
.app-tile--drawing::after {
  display: none;
}
.app-tile--drawing .app-tile__cap {
  color: var(--ink);
  background: linear-gradient(180deg, rgba(251, 249, 245, 0) 0%, rgba(251, 249, 245, 0.96) 55%);
}
.app-tile--drawing .app-tile__cap p {
  color: var(--muted);
}
.app-tile--drawing .app-tile__num {
  color: var(--accent-deep);
  border-color: var(--line);
}
.app-tile__cap {
  position: absolute;
  z-index: 2;
  inset: auto 0 0 0;
  padding: 24px 26px;
  color: var(--paper);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}
.app-tile__cap h3 {
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 600;
  margin-bottom: 6px;
}
.app-tile__cap p {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247, 245, 240, 0.7);
  margin: 0;
}
.app-tile__num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  border: 1px solid rgba(247, 245, 240, 0.25);
  padding: 6px 9px;
  flex: none;
}

/* 8. Reasons / steps ----------------------------------------------------- */

.reasons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}
.reason {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: clamp(14px, 2vw, 28px);
  padding: clamp(24px, 3vw, 38px) clamp(0px, 2vw, 30px) clamp(24px, 3vw, 38px) 0;
  border-bottom: 1px solid var(--line);
}
.reason:nth-child(odd) {
  border-right: 1px solid var(--line);
  padding-right: clamp(20px, 3vw, 40px);
}
.reason:nth-child(even) {
  padding-left: clamp(20px, 3vw, 40px);
}
.reason__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
  padding-top: 4px;
}
.reason__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 1.5vw, 21px);
  font-weight: 600;
  margin-bottom: 8px;
}
.reason__text {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
  max-width: 46ch;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
  margin-top: 44px;
}
.step {
  padding: 26px 22px 4px 0;
  border-right: 1px solid var(--line-dark);
  position: relative;
}
.step:last-child {
  border-right: 0;
}
.step:first-child {
  padding-left: 0;
}
.step:not(:first-child) {
  padding-left: 22px;
}
.step::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 0;
  width: 5px;
  height: 5px;
  background: var(--accent);
  transform: rotate(45deg);
}
.step:not(:first-child)::before {
  left: 22px;
}
.step__num {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  color: var(--muted-dark);
  margin-bottom: 14px;
}
.step__title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 7px;
  line-height: 1.2;
}
.step__text {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted-dark);
}
.step__time {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--accent);
  border-top: 1px solid var(--line-dark);
  padding-top: 8px;
  width: 100%;
}

/* 9. Cert / CTA ---------------------------------------------------------- */

.cert {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
}
.cert--docs {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: start;
}

/* sites */
.sites-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 1.8vw, 24px);
  margin-bottom: clamp(26px, 3vw, 38px);
}
.site-card {
  margin: 0;
}
.site-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
}
.site-card figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.site-card__city {
  color: var(--accent-deep);
}
.sites-list {
  border-top: 1px solid var(--ink);
}
.site-row {
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}
.site-row__city {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.site-row p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* full-width drawing plate */
.section-plate {
  margin: 0 0 clamp(26px, 3vw, 38px);
  border: 1px solid var(--line);
  background: #fff;
  padding: clamp(14px, 1.8vw, 24px);
}
.section-plate img {
  width: 100%;
  height: auto;
  display: block;
}
.section-plate a {
  display: block;
}
.section-plate figcaption {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
  border-top: 1px solid var(--ink);
  padding-top: 4px;
  margin-bottom: 28px;
}
.spec-grid .spec {
  border-bottom: 0;
  padding: 14px 0 0;
}

/* FAQ (also the visible half of the FAQPage schema) */
.faq {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
}
.faq__head {
  position: sticky;
  top: 96px;
}
.faq__note {
  margin-top: 12px;
  max-width: 32ch;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}
@media (max-width: 860px) {
  .faq { grid-template-columns: minmax(0, 1fr); }
  .faq__head { position: static; }
}
.faq__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--ink);
}
.faq details,
.faq__item {
  border-bottom: 1px solid var(--line-soft);
}
.faq summary {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  list-style: none;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  line-height: 1;
  transition: transform 0.25s var(--ease);
}
.faq details[open] summary::after {
  transform: rotate(45deg);
}
.faq details > p,
.faq .faq__item p {
  padding: 0 0 16px;
  margin: 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* certificate dossier */
.cert-rail {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 9px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.cert-rail__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  display: inline-block;
}
.dot.is-live {
  background: #3f7d4e;
  box-shadow: 0 0 0 3px rgba(63, 125, 78, 0.14);
}
.cert-strip__head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: 6px 0 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.cert-strip__head span:first-child {
  color: var(--ink);
}
.cert-deck {
  display: grid;
  gap: clamp(20px, 2.4vw, 32px);
}
.cert-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 44px);
  align-items: stretch;
  border: 1px solid var(--line);
  background: #fff;
  padding: clamp(16px, 2vw, 28px);
  transition: border-color 0.35s var(--ease);
}
.cert-hero:hover {
  border-color: var(--ink);
}
.cert-hero__media {
  display: block;
  background: #f7f4ee;
  padding: clamp(10px, 1.4vw, 18px);
}
.cert-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: contain;
  box-shadow: 0 18px 40px -28px rgba(20, 22, 26, 0.55);
}
.cert-hero__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: clamp(4px, 1vw, 12px) 0;
}
.cert-hero__kicker {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.cert-hero__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 2.8vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.cert-hero__sub {
  font-size: clamp(14px, 1.3vw, 17px);
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.cert-hero__rule {
  height: 1px;
  background: var(--line);
  margin: 6px 0 14px;
}
.cert-hero__row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
}
.cert-hero__row span:first-child {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 3px;
}
.cert-hero__row span:last-child {
  color: var(--ink);
  text-align: right;
}
.cert-hero__scope {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 14px;
}
.cert-hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}
.cert-hero__cta svg {
  width: 14px;
  transition: transform 0.3s var(--ease);
}
.cert-hero:hover .cert-hero__cta svg {
  transform: translateX(4px);
}

.cert-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(12px, 1.6vw, 22px);
}
.cert-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.cert-tile__media {
  position: relative;
  display: block;
  border: 1px solid var(--line-soft);
  background: #fff;
  padding: 8px;
  transition: border-color 0.3s var(--ease), transform 0.4s var(--ease);
}
.cert-tile__media img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1.414;
  object-fit: contain;
  background: #fff;
}
.cert-tile:hover .cert-tile__media {
  border-color: var(--ink);
  transform: translateY(-3px);
}
.cert-tile__idx {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  padding: 3px 6px;
  background: rgba(255, 255, 255, 0.92);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
}
.cert-tile__num {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-top: 8px;
}
.cert-tile__name {
  font-size: 13px;
  line-height: 1.35;
  color: var(--ink);
  min-height: 2.7em;
}
.cert-tile__meta {
  font-size: 11.5px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .cert-hero { grid-template-columns: minmax(0, 1fr); }
  .cert-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* certificate wall */
.cert-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: stretch;
}
.cert-card {
  flex: 0 0 auto;
  width: 230px;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  padding: 9px 9px 12px;
  transition: border-color 0.2s, transform 0.3s var(--ease), box-shadow 0.3s;
}
.cert-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 20px 30px -28px rgba(11, 14, 19, 0.55);
}
.cert-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1.414;
  object-fit: cover;
  object-position: top center;
  border: 1px solid var(--line-soft);
}
.cert-card__name {
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.cert-card__sub {
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.35;
  color: #3d4249;
}
.cert-card__meta {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.05em;
  line-height: 1.5;
  color: var(--muted);
  word-break: break-word;
}
.cert-card__zoom {
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

/* test report rows */
.doc-list {
  margin-top: clamp(26px, 3vw, 38px);
  border-top: 1px solid var(--ink);
}
.doc-list__head {
  margin: 0;
  padding: 12px 0 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.doc-row {
  display: grid;
  align-items: baseline;
  grid-template-columns: 96px minmax(0, 1.5fr) 175px 96px minmax(0, 0.95fr);
  gap: 18px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.doc-row__lab {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.doc-row__name {
  color: #2f343a;
}
.doc-row__name a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.doc-row__name a:hover {
  color: var(--accent-deep);
  border-bottom-color: var(--accent-deep);
}
.doc-row__pdf {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--ink);
  padding: 2px 5px;
  line-height: 1.2;
}
.doc-row__num,
.doc-row__date {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.doc-row__res {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-align: right;
}
@media (max-width: 760px) {
  .doc-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px 14px;
  }
  .doc-row__lab { grid-column: 1; }
  .doc-row__name { grid-column: 1 / -1; }
  .doc-row__num { grid-column: 1; font-size: 11.5px; }
  .doc-row__date { grid-column: 2; text-align: right; font-size: 11.5px; }
  .doc-row__res { grid-column: 1 / -1; padding-top: 2px; }
}
.doc-row__res.is-pass {
  color: var(--ok);
}

/* lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(11, 14, 19, 0.93);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}
.lightbox img {
  max-width: min(92vw, 900px);
  max-height: 78vh;
  width: auto;
  height: auto;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.8);
  background: #fff;
}
.lightbox__cap {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c9c6bf;
  text-align: center;
}
.lightbox__close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(247, 245, 240, 0.3);
  color: var(--paper);
  font-size: 22px;
  line-height: 1;
  transition: background 0.2s, color 0.2s;
}
.lightbox__close:hover {
  background: var(--paper);
  color: var(--ink);
}
.cert__media {
  background: #fff;
  border: 1px solid var(--line);
  padding: 18px;
}
.cert__media img {
  width: 100%;
  aspect-ratio: 1260 / 465;
  object-fit: contain;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 7px 11px;
  color: #3d4249;
}

.cta-band {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-dark);
}
.cta-band::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 420px;
  height: 420px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  pointer-events: none;
}
.cta-band::after {
  content: '';
  position: absolute;
  right: 40px;
  top: 40px;
  width: 240px;
  height: 240px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  pointer-events: none;
}
.cta-band__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: end;
  padding-top: clamp(56px, 7vw, 96px);
  padding-bottom: clamp(56px, 7vw, 96px);
  position: relative;
  z-index: 1;
}
.cta-band__title {
  font-size: clamp(32px, 4.4vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 17ch;
  text-wrap: balance;
}
.cta-band__title em {
  font-style: normal;
  color: var(--accent);
}
.cta-band__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}
.cta-band__note {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-dark);
  margin-top: 8px;
  text-align: center;
}

/* 10. Footer ------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid rgba(247, 245, 240, 0.1);
  background: var(--ink-2);
  color: var(--muted-dark);
  font-size: 14px;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: clamp(28px, 4vw, 60px);
  padding: clamp(48px, 6vw, 76px) 0 clamp(38px, 4vw, 56px);
}
.footer__brand .brand__name {
  color: var(--paper);
}
.footer__brand .brand__sub {
  color: var(--muted-dark);
}
.footer__brand p {
  margin-top: 20px;
  max-width: 34ch;
  line-height: 1.65;
  font-size: 13.5px;
}
.footer__title {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
  margin-bottom: 18px;
}
.footer__col ul {
  display: grid;
  gap: 10px;
}
.footer__col a {
  font-size: 13.5px;
  transition: color 0.2s;
}
.footer__col a:hover {
  color: var(--paper);
}
.footer__contact {
  display: grid;
  gap: 10px;
  font-size: 13.5px;
}
.footer__contact dt {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #7d7a73;
}
.footer__contact dd {
  margin: 0 0 8px;
  color: var(--paper);
}
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0 22px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer__iso {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-dark);
  white-space: nowrap;
}
@media (max-width: 780px) {
  .footer__iso { display: none; }
}
.footer__bottom nav {
  display: flex;
  gap: 18px;
}
.footer__bottom a:hover {
  color: var(--paper);
}
.footer__social {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}
.footer__social a {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line-dark);
  display: grid;
  place-items: center;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.footer__social a:hover {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}
.footer__social svg {
  width: 13px;
  height: 13px;
}

/* 11. Page head ---------------------------------------------------------- */

.page-head {
  background: var(--sand);
  border-bottom: 1px solid var(--line);
  padding: clamp(30px, 4vw, 52px) 0 clamp(40px, 5.5vw, 72px);
  position: relative;
  overflow: hidden;
}
.page-head::after {
  content: '';
  position: absolute;
  right: calc(-1 * var(--gut));
  top: 0;
  width: 46vw;
  height: 100%;
  background-image: linear-gradient(to right, rgba(11, 14, 19, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 14, 19, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: clamp(36px, 4vw, 60px);
  position: relative;
  z-index: 1;
}
.breadcrumb a:hover {
  color: var(--ink);
}
.breadcrumb span {
  opacity: 0.5;
}
.page-head__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(24px, 4vw, 70px);
  align-items: end;
  position: relative;
  z-index: 1;
}
.page-head h1 {
  font-size: clamp(40px, 5.4vw, 76px);
  line-height: 1;
  max-width: 16ch;
  text-wrap: balance;
}
.page-head__lede {
  max-width: 42ch;
  color: #44494f;
  font-size: 16.5px;
}
.page-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 1;
}
.page-head__meta div {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-head__meta strong {
  display: block;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-transform: none;
  margin-bottom: 3px;
  font-weight: 600;
}

/* 12. Catalog & PDP ------------------------------------------------------ */

.filterbar {
  position: sticky;
  top: 66px;
  z-index: 40;
  background: rgba(247, 245, 240, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.filterbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 14px;
  padding-bottom: 14px;
  flex-wrap: wrap;
}
.chips--filter {
  margin: 0;
  gap: 6px;
}
@media (max-width: 820px) {
  .filterbar__inner {
    flex-wrap: nowrap;
    gap: 12px;
  }
  .chips--filter {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
  }
  .chips--filter::-webkit-scrollbar {
    display: none;
  }
  .filter-chip {
    flex: none;
  }
  .filterbar__count {
    display: none;
  }
}
.filter-chip {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 9px 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.filter-chip b {
  font-weight: 400;
  opacity: 0.5;
}
.filter-chip:hover {
  border-color: var(--ink);
}
.filter-chip.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.filterbar__count {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.catalog {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 1.6vw, 24px);
}
.catalog__empty {
  grid-column: 1 / -1;
  padding: 60px 0;
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.product-card.is-hidden {
  display: none;
}

/* PDP */
.pdp {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: start;
}
.pdp__gallery {
  position: sticky;
  top: 92px;
}
.pdp__main {
  border: 1px solid var(--line);
  background: #f1eee8;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10%;
  position: relative;
  overflow: hidden;
}
.pdp__main img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}
.pdp__main--photo {
  padding: 0;
  background: var(--sand-2);
}
.pdp__main--photo img {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: cover;
  mix-blend-mode: normal;
}
.pdp__badge {
  position: absolute;
  left: 14px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--paper);
  padding: 5px 8px;
}
.pdp__thumbs {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.pdp__thumb {
  width: 74px;
  height: 74px;
  border: 1px solid var(--line);
  background: #f1eee8;
  padding: 8px;
  display: grid;
  place-items: center;
  transition: border-color 0.2s;
}
.pdp__thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}
.pdp__thumb.is-active,
.pdp__thumb:hover {
  border-color: var(--ink);
}
.pdp__family {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 14px;
}
.pdp__title {
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}
.pdp__sku {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 20px;
}
.pdp__lede {
  color: #44494f;
  font-size: 16px;
  max-width: 48ch;
}
.keyfacts {
  margin: 26px 0;
  border-top: 1px solid var(--line);
}
.keyfact {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.keyfact dt {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 2px;
}
.keyfact dd {
  margin: 0;
  font-weight: 500;
}
.pdp__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.pdp__note {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
  border-left: 2px solid var(--accent);
  padding-left: 12px;
}

.tabs {
  margin-top: clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--ink);
}
.tabs__nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.tabs__btn {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 18px 18px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs__btn[aria-selected='true'] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.tabs__panel {
  padding-top: 32px;
}
.tabs__panel[hidden] {
  display: none;
}
.two-col-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 48px);
}
.two-col-copy ul {
  display: grid;
  gap: 10px;
}
.two-col-copy li {
  padding-left: 18px;
  position: relative;
  font-size: 15px;
  color: #3d4249;
}
.two-col-copy li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--accent-deep);
  transform: rotate(45deg);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
}
.spec-table {
  min-width: 640px;
  font-size: 13.5px;
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.spec-table thead th {
  background: var(--sand);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #3d4249;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.spec-table tbody tr:hover {
  background: rgba(237, 232, 223, 0.5);
}
.spec-table td:not(:first-child) {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.spec-table caption {
  caption-side: bottom;
  text-align: left;
  font-size: 12px;
  color: var(--muted);
  padding: 12px 16px;
}
.table-note {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 12px;
  max-width: 80ch;
}

.downloads {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
  max-width: 760px;
}
.download {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  transition: padding 0.25s, color 0.2s;
}
.download:hover {
  padding-left: 8px;
  color: var(--accent-deep);
}
.download span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* installation photo strip */
.install-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: clamp(26px, 3vw, 38px);
}
.install-shot {
  margin: 0;
}
.install-shot img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}
.install-shot figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.install-shot figcaption span {
  color: var(--accent-deep);
  margin-right: 8px;
}

/* 13. Contact ----------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(30px, 5vw, 80px);
  align-items: start;
}
.form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.field {
  margin-bottom: 22px;
}
.field__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.field__label b {
  color: var(--accent-deep);
  font-weight: 400;
}
.field__input {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 9px 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  color: var(--ink);
  border-radius: 0;
  transition: border-color 0.2s;
  appearance: none;
}
.field__input:focus {
  outline: 0;
  border-bottom-color: var(--ink);
}
.field__input::placeholder {
  color: #a8a49c;
}
select.field__input {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%),
    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 12px) 18px, calc(100% - 7px) 18px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
textarea.field__input {
  resize: vertical;
  min-height: 96px;
}
.field__error {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  color: var(--accent-deep);
  min-height: 0;
}
.field.has-error .field__input {
  border-bottom-color: var(--accent-deep);
}
.form__consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12.5px;
  color: var(--muted);
  margin: 6px 0 24px;
}
.form__consent input {
  margin-top: 3px;
  accent-color: var(--accent-deep);
}
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form__status {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.form__status--ok {
  color: var(--ok);
}
.form__status--err {
  color: var(--accent-deep);
}
.form__success {
  border: 1px solid var(--line);
  border-top: 2px solid var(--ok);
  padding: 30px;
  display: none;
}
.form__success.is-visible {
  display: block;
}
.form__success h3 {
  margin-bottom: 10px;
}
.form__success p {
  font-size: 15px;
  color: #44494f;
}

.contact-cards {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink);
}
.contact-card {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.contact-card dt {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 4px;
}
.contact-card dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.5;
}
.contact-card a:hover {
  color: var(--accent-deep);
}
.contact-card small {
  display: block;
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 2px;
}
.map-card {
  margin-top: 30px;
  border: 1px solid var(--line);
  background: var(--sand);
  position: relative;
  overflow: hidden;
}
.map-card svg {
  width: 100%;
  height: auto;
  display: block;
}
.map-card__pin {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
.map-card__label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.map-card__link {
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.faq {
  border-top: 1px solid var(--line);
}
.faq details {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  list-style: none;
  letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  color: var(--accent-deep);
  transition: transform 0.3s;
}
.faq details[open] summary::after {
  transform: rotate(45deg);
}
.faq details p {
  font-size: 14.5px;
  color: var(--muted);
  padding: 0 0 20px;
  max-width: 70ch;
}

/* Capabilities, timeline, factsheet, sectors ----------------------------- */

.cap-steps {
  border-top: 1px solid var(--ink);
}
.cap-step {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 180px;
  gap: clamp(14px, 2.4vw, 34px);
  padding: clamp(22px, 2.6vw, 32px) 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.cap-step__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
  padding-top: 5px;
}
.cap-step h3 {
  margin-bottom: 7px;
}
.cap-step p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 56ch;
  margin: 0;
}
.cap-step__meta {
  display: grid;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 5px;
  text-align: right;
}
.cap-step__meta span:first-child {
  color: var(--ink);
  font-size: 11px;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.cap-card {
  background: var(--paper);
  padding: 26px 24px 30px;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background 0.3s;
}
.cap-card:hover {
  background: #fbf9f5;
}
.cap-card__k {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--accent-deep);
}
.cap-card h3 {
  font-size: 18px;
}
.cap-card p {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0;
  margin-top: auto;
}

.qc-list {
  border-top: 1px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}
.qc {
  background: var(--paper);
  padding: 24px 20px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.qc__k {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--accent-deep);
}
.qc h3 {
  font-size: 16px;
  line-height: 1.2;
}
.qc p {
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}

.timeline {
  border-top: 1px solid var(--ink);
}
.tl {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: clamp(18px, 3vw, 50px);
  padding: clamp(24px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--line);
}
.tl__year {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}
.tl__body h3 {
  margin-bottom: 8px;
}
.tl__body p {
  color: var(--muted);
  font-size: 15px;
  max-width: 62ch;
  margin: 0;
}

.factsheet {
  border: 1px solid var(--line);
  background: #fbf9f5;
  padding: clamp(22px, 2.6vw, 32px);
}
.factsheet dl {
  display: grid;
  gap: 0;
  margin: 0;
}
.fact {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}
.fact:last-child {
  border-bottom: 0;
}
.fact dt {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.fact dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  text-align: right;
  letter-spacing: -0.01em;
}

.quote {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 42px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.025em;
  max-width: 26ch;
  text-wrap: balance;
}

.sectors {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}
.sector {
  padding: 26px clamp(0px, 2vw, 30px) 28px 0;
  border-bottom: 1px solid var(--line);
}
.sector:nth-child(odd) {
  border-right: 1px solid var(--line);
  padding-right: clamp(20px, 3vw, 40px);
}
.sector:nth-child(even) {
  padding-left: clamp(20px, 3vw, 40px);
}
.sector h3 {
  margin-bottom: 6px;
  font-size: 19px;
}
.sector p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.apps--quad {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.apps--quad .app-tile {
  min-height: 420px;
}

.map-card img {
  width: 100%;
  height: auto;
}

.form__success ul {
  margin-top: 12px;
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}

/* Chinese typography: CJK fallback stack and looser spacing ------------------ */

html[lang='zh-CN'] body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', var(--font-body);
  line-height: 1.7;
}

html[lang='zh-CN'] h1,
html[lang='zh-CN'] h2,
html[lang='zh-CN'] h3,
html[lang='zh-CN'] h4,
html[lang='zh-CN'] .hero__title,
html[lang='zh-CN'] .cta-band__title,
html[lang='zh-CN'] .quote {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', var(--font-display);
  letter-spacing: 0.01em;
  font-weight: 700;
  line-height: 1.22;
}

html[lang='zh-CN'] .hero__title,
html[lang='zh-CN'] .page-head h1,
html[lang='zh-CN'] .cta-band__title {
  line-height: 1.16;
}

html[lang='zh-CN'] .sec-head__title,
html[lang='zh-CN'] .split__title {
  line-height: 1.28;
}

html[lang='zh-CN'] .eyebrow,
html[lang='zh-CN'] .stat__label,
html[lang='zh-CN'] .system__idx,
html[lang='zh-CN'] .system__list li,
html[lang='zh-CN'] .product-card__family,
html[lang='zh-CN'] .product-card__foot,
html[lang='zh-CN'] .pdp__family,
html[lang='zh-CN'] .keyfact dt,
html[lang='zh-CN'] .chip,
html[lang='zh-CN'] .footer__title,
html[lang='zh-CN'] .mega__title,
html[lang='zh-CN'] .step__num,
html[lang='zh-CN'] .breadcrumb {
  letter-spacing: 0.06em;
}

html[lang='zh-CN'] .btn {
  letter-spacing: 0.1em;
  font-size: 12px;
}

html[lang='zh-CN'] .hero__lede,
html[lang='zh-CN'] .page-head__lede,
html[lang='zh-CN'] .lede {
  line-height: 1.75;
}

/* 14. Motion & misc ----------------------------------------------------- */
html.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  transition-delay: var(--d, 0ms);
}
html.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: var(--paper);
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.2s, color 0.2s;
}
.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.back-top:hover {
  background: var(--ink);
  color: var(--paper);
}
.back-top svg {
  width: 14px;
  height: 14px;
}

/* 15. Responsive -------------------------------------------------------- */

@media (max-width: 1180px) {
  .nav__link {
    padding: 0 11px;
    font-size: 13.5px;
  }
  .hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
  .catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1040px) {
  .nav,
  .header__actions .btn {
    display: none;
  }
  .header__actions {
    margin-left: auto;
  }
  .menu-toggle {
    display: block;
  }
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__body {
    max-width: none;
    padding-right: 0;
  }
  .hero__media {
    min-height: 320px;
  }
  .hero__media::after {
    background: linear-gradient(0deg, var(--ink) 0%, rgba(11, 14, 19, 0.25) 60%, rgba(11, 14, 19, 0.05) 100%);
  }
  .sec-head,
  .page-head__grid,
  .split,
  .cert,
  .pdp,
  .cta-band__inner {
    grid-template-columns: 1fr;
  }
  .split--media-right .split__media {
    order: 0;
  }
  .pdp__gallery {
    position: static;
  }
  .cta-band__actions {
    margin-top: 10px;
    max-width: 420px;
  }
  .apps {
    grid-template-columns: 1fr;
  }
  .app-tile--tall {
    grid-row: auto;
    min-height: 380px;
  }
  .app-tile {
    min-height: 300px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .step:nth-child(2n) {
    border-right: 0;
  }
  .step:nth-child(odd) {
    border-right: 1px solid var(--line-dark);
  }
  .footer__top {
    grid-template-columns: 1fr 1fr;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }
  .stat:nth-child(3),
  .stat:nth-child(4) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 900px) {
  .systems {
    grid-template-columns: 1fr;
  }
  .system__media {
    aspect-ratio: 16 / 8;
    max-height: 360px;
  }
  .system {
    padding-top: 14px;
  }
}

@media (max-width: 860px) {
  body {
    font-size: 16px;
  }
  .products-grid,
  .catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .reasons {
    grid-template-columns: 1fr;
  }
  .reason:nth-child(odd) {
    border-right: 0;
    padding-right: 0;
  }
  .reason:nth-child(even) {
    padding-left: 0;
  }
  .two-col-copy {
    grid-template-columns: 1fr;
  }
  .page-head__meta {
    gap: 20px;
  }
  .filterbar {
    top: 60px;
  }
  .filterbar__inner {
    padding-top: 11px;
    padding-bottom: 11px;
  }
}

@media (max-width: 620px) {
  :root {
    --section-y: 62px;
  }
  .topbar__meta {
    max-width: none;
    gap: 14px;
  }
  .topbar__meta span + span {
    display: none;
  }
  .topbar__links > a:not(.lang a) {
    display: none;
  }
  .header__inner {
    height: 66px;
  }
  .brand__mark {
    width: 26px;
  }
  .hero__grid {
    min-height: 0;
  }
  .hero__body {
    padding: 42px 0 40px;
  }
  .hero__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
  .products-grid,
  .catalog {
    grid-template-columns: 1fr;
  }
  .product-card__media {
    aspect-ratio: 3 / 2;
    padding: 9%;
  }
  .form__row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .keyfact {
    grid-template-columns: 110px 1fr;
  }
  .footer__top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .step,
  .step:not(:first-child) {
    border-right: 0;
    padding-left: 0;
    padding-top: 20px;
  }
  .step::before,
  .step:not(:first-child)::before {
    left: 0;
  }
  .contact-card {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .hero__caption {
    display: none;
  }
  .page-head h1 {
    font-size: clamp(34px, 9vw, 44px);
  }
  .cta-band__title {
    font-size: clamp(28px, 8vw, 38px);
  }
  .filter-chip {
    font-size: 9px;
    padding: 8px 10px;
  }
  .stat {
    padding-top: 24px;
    padding-bottom: 22px;
  }
  .stat__num {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }
  html.js .reveal,
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

@media (max-width: 1040px) {
  .cap-step {
    grid-template-columns: 40px minmax(0, 1fr);
  }
  .cap-step__meta {
    grid-column: 2;
    grid-auto-flow: column;
    justify-content: start;
    gap: 22px;
    text-align: left;
    padding-top: 0;
  }
  .qc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cap-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .tl {
    grid-template-columns: 110px minmax(0, 1fr);
  }
  .apps--quad {
    grid-template-columns: 1fr;
  }
  .apps--quad .app-tile {
    min-height: 340px;
  }
}

@media (max-width: 620px) {
  .cap-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .cap-step__meta {
    grid-column: 1;
  }
  .cap-grid,
  .qc-list {
    grid-template-columns: 1fr;
  }
  .sectors {
    grid-template-columns: 1fr;
  }
  .sector,
  .sector:nth-child(odd),
  .sector:nth-child(even) {
    border-right: 0;
    padding-left: 0;
    padding-right: 0;
  }
  .tl {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .fact dd {
    font-size: 14px;
  }
}


/* ---- PDP gallery: vertical thumb rail (appended override) ---- */
.pdp__gallery {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  grid-template-areas: "thumbs main";
  gap: 12px;
  align-items: start;
}
.pdp__gallery .pdp__main {
  grid-area: main;
  min-width: 0;
}
.pdp__gallery .pdp__thumbs {
  grid-area: thumbs;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 0;
}
.pdp__gallery .pdp__thumb {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  max-width: 76px;
}
@media (max-width: 760px) {
  .pdp__gallery {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "main" "thumbs";
  }
  .pdp__gallery .pdp__thumbs {
    flex-direction: row;
    margin-top: 8px;
  }
  .pdp__gallery .pdp__thumb {
    width: 64px;
    max-width: 64px;
  }
}


/* ---- datasheet-style spec table ---- */
.table-wrap--sheet {
  border: 0;
}
.spec-table--sheet {
  min-width: 0;
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.spec-table--sheet th {
  text-align: left;
  font-weight: 400;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}
.spec-table--sheet .spec-table__idx {
  display: inline-block;
  min-width: 30px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--accent-deep);
  transform: translateY(-1px);
}
.spec-table--sheet .spec-table__key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec-table--sheet td {
  text-align: right;
  padding: 15px 0 15px 24px;
  border-bottom: 1px solid var(--line-soft);
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.spec-table--sheet tbody tr {
  transition: background 0.2s var(--ease);
}
.spec-table--sheet tbody tr:hover {
  background: rgba(237, 232, 223, 0.45);
}
.spec-table--sheet tbody tr:hover .spec-table__key {
  color: var(--ink);
}
.spec-table--sheet caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--ink);
}


/* ---- family card hover ---- */
.system {
  transition: border-color 0.3s var(--ease);
}
.system:hover {
  border-color: var(--accent);
}
.system:hover .system__title {
  color: var(--ink);
}
.system .link-arrow svg {
  transition: transform 0.35s var(--ease);
}
.system:hover .link-arrow svg {
  transform: translateX(4px);
}


/* datasheet on narrow screens: key above value */
@media (max-width: 520px) {
  .spec-table--sheet tr {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .spec-table--sheet th,
  .spec-table--sheet td {
    display: block;
    border: 0;
    padding: 0;
    text-align: left;
    white-space: normal;
  }
  .spec-table--sheet th {
    padding-bottom: 5px;
  }
  .spec-table--sheet td {
    padding-left: 30px;
    font-weight: 500;
  }
}


/* ---- 404: a drawing that was never issued ---- */
.nf {
  padding-top: clamp(56px, 7vw, 104px);
  padding-bottom: clamp(56px, 7vw, 104px);
}
.nf__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: center;
}
.nf__title {
  font-size: clamp(30px, 4vw, 54px);
  letter-spacing: -0.03em;
  line-height: 1.02;
  max-width: 18ch;
}
.nf__lede {
  margin: 22px 0 32px;
  max-width: 46ch;
}
.nf__plate {
  margin: 0;
}
.nf__plate svg {
  width: 100%;
  height: auto;
  display: block;
  background: #fff;
}
.nf__plate figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.nf__plate figcaption span:last-child {
  color: var(--accent-deep);
}
@media (max-width: 860px) {
  .nf__grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .nf__plate {
    order: -1;
    max-width: 320px;
  }
}


/* ---- pdp thumb contrast (white drawings must stay visible) ---- */
.pdp__thumb {
  background: #eeeae2;
  border-color: #ddd6c8;
  padding: 0;
  overflow: hidden;
}
.pdp__thumb img {
  mix-blend-mode: normal;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: cover;
  object-position: center;
}
.pdp__thumb.is-active {
  border-color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--ink);
}


/* ---- catalogue comparison table ---- */
.cmp-wrap {
  overflow-x: auto;
  border-top: 1px solid var(--ink);
}
.cmp {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 860px;
}
.cmp thead th {
  text-align: left;
  padding: 12px 14px 12px 0;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.cmp tbody th {
  text-align: left;
  padding: 14px 14px 14px 0;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-deep);
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  border-right: 1px solid var(--line-soft);
}
.cmp td {
  padding: 14px 14px 14px 0;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  color: var(--ink-soft);
}
.cmp__sku {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  white-space: nowrap;
}
.cmp__name a {
  font-weight: 600;
  color: var(--ink);
}
.cmp__name a:hover {
  color: var(--accent-deep);
}
.cmp__spec {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.cmp__use {
  max-width: 44ch;
  font-size: 12.5px;
  line-height: 1.5;
}


/* ---- project tiles with metrics ---- */
.project {
  margin: 0;
}
.project .app-tile {
  display: block;
}
.project__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
  gap: 10px 18px;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--line-soft);
}
.project__facts div {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.project__facts dt {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.project__facts dd {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.project__note {
  margin: 12px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--accent);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 46ch;
}