/* KNT EU site — scheme 1 (warm paper / copper / engineering drawing) */
:root {
  --ink-900: #0E1116;
  --ink-800: #171C23;
  --paper: #F4F2ED;
  --paper-2: #FBFAF7;
  --hairline-l: rgba(14, 17, 22, .10);
  --hairline-l2: rgba(14, 17, 22, .20);
  --hairline-d: rgba(255, 255, 255, .08);
  --hairline-d2: rgba(255, 255, 255, .18);
  --copper-500: #C9835A;
  --copper-400: #E09B66;
  --copper-700: #9C5F35;
  --copper-tint: rgba(201, 131, 90, .08);
  --steel-400: #8A94A3;
  --steel-600: #5C6672;
  --signal: #4DD6C1;
  --red: #B0524A;
  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", "SF Mono", Consolas, "Roboto Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --r: 4px;
  --header-h: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-900);
  background: var(--paper);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

::selection { background: rgba(201, 131, 90, .28); }
:focus-visible { outline: 2px solid var(--copper-500); outline-offset: 2px; border-radius: 2px; }
.dark :focus-visible { outline-color: var(--copper-400); }

.container { max-width: 1200px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 32px); }
.mono { font-family: var(--mono); }
.hl-em { color: var(--copper-700); }
.dark .hl-em { color: var(--copper-400); }
.hl-strong { color: var(--copper-400); box-shadow: inset 0 -2px 0 rgba(201, 131, 90, .5); }
.tx-muted { color: var(--steel-600); }
.dark .tx-muted { color: var(--steel-400); }

.skip-link {
  position: fixed; top: -48px; left: 16px; z-index: 300;
  background: var(--ink-900); color: var(--paper);
  padding: 10px 16px; border-radius: var(--r); font-size: 14px;
  transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

/* ============ header ============ */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 200;
  background: rgba(251, 250, 247, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline-l);
  transition: box-shadow .25s ease, background .25s ease;
}
.site-header.scrolled { box-shadow: 0 1px 0 var(--hairline-l2), 0 8px 24px rgba(14, 17, 22, .05); background: rgba(251, 250, 247, .97); }
.header-inner { display: flex; align-items: center; gap: 20px; height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.brand-mark {
  width: 30px; height: 30px; border: 1px solid var(--copper-700); border-radius: var(--r);
  display: grid; place-items: center;
  font: 700 15px/1 var(--mono); color: var(--copper-700);
}
.brand-text { font-weight: 700; font-size: 18px; letter-spacing: -.01em; white-space: nowrap; }
.brand-text em { font-style: normal; color: var(--copper-700); }

.main-nav { display: none; align-items: center; gap: 26px; margin-inline: auto; }
.main-nav a {
  text-decoration: none; font-size: 14px; font-weight: 600; color: var(--ink-900);
  padding: 6px 0; border-bottom: 2px solid transparent; transition: color .18s, border-color .18s;
}
.main-nav a:hover { color: var(--copper-700); }
.main-nav a.active { color: var(--copper-700); border-bottom-color: var(--copper-500); }

.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.lang-switch, .region-switch { display: inline-flex; flex-shrink: 0; border: 1px solid var(--hairline-l2); border-radius: var(--r); overflow: hidden; }
.lang-switch a, .region-switch a {
  font: 600 11px/1 var(--mono); letter-spacing: .08em; padding: 8px 12px; color: var(--steel-600);
  text-decoration: none; transition: background .18s, color .18s; white-space: nowrap;
}
.lang-switch a.active, .region-switch a.active { background: var(--copper-tint); color: var(--copper-700); }
.region-switch { border-color: rgba(156, 95, 53, .4); }
.header-cta { display: none; }

.menu-btn {
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--hairline-l2); border-radius: var(--r); color: var(--ink-900);
}
.menu-btn svg { width: 20px; height: 20px; }

/* ============ drawer ============ */
.drawer-overlay {
  position: fixed; inset: 0; z-index: 250; background: rgba(14, 17, 22, .55);
  opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s;
}
.drawer-overlay.show { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; z-index: 260;
  width: min(340px, 88vw); height: 100dvh;
  background: var(--paper-2); border-left: 1px solid var(--hairline-l2);
  transform: translateX(100%); transition: transform .28s cubic-bezier(.4, 0, .2, 1);
  display: flex; flex-direction: column; overflow-y: auto;
}
.drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--hairline-l); }
.drawer-close { width: 44px; height: 44px; display: grid; place-items: center; border-radius: var(--r); color: var(--ink-900); }
.drawer-close svg { width: 20px; height: 20px; }
.drawer-nav { padding: 14px 12px; display: flex; flex-direction: column; }
.drawer-nav a {
  display: flex; align-items: baseline; gap: 14px; text-decoration: none;
  font-size: 17px; font-weight: 600; color: var(--ink-900);
  padding: 13px 12px; border-radius: var(--r); min-height: 44px;
}
.drawer-nav a .idx { font: 500 11px/1 var(--mono); color: var(--copper-700); letter-spacing: .08em; }
.drawer-nav a.active, .drawer-nav a:hover { background: var(--copper-tint); color: var(--copper-700); }
.drawer-foot { margin-top: auto; padding: 18px; border-top: 1px solid var(--hairline-l); display: grid; gap: 14px; }
.drawer-foot .btn { width: 100%; justify-content: center; }
.drawer-foot .switch-row { display: flex; gap: 8px; justify-content: center; }
.drawer-mail { font: 500 12px/1.5 var(--mono); color: var(--steel-600); text-decoration: none; }
.drawer-mail:hover { color: var(--copper-700); }

/* ============ buttons ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 46px; padding: 12px 22px; border-radius: var(--r);
  font: 600 14px/1 var(--sans); letter-spacing: .02em; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-primary { background: var(--copper-500); color: var(--ink-900); }
.btn-primary:hover { background: var(--copper-400); transform: translateY(-1px); }
.btn-ghost { border-color: var(--hairline-d2); color: var(--paper); }
.btn-ghost:hover { border-color: var(--copper-400); color: var(--copper-400); }
.btn-ghost-light { border-color: var(--hairline-l2); color: var(--ink-900); }
.btn-ghost-light:hover { border-color: var(--copper-700); color: var(--copper-700); }
.btn-sm { min-height: 38px; padding: 9px 16px; font-size: 13px; }
.btn-lg { min-height: 52px; padding: 15px 30px; font-size: 15px; }
.btn-wide { width: 100%; }

/* ============ sections ============ */
.section { padding: clamp(64px, 9vw, 108px) 0; }
.dark { background: var(--ink-900); color: var(--paper); position: relative; }
.grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 48px 48px;
}
.dark > .container { position: relative; }
section[id] { scroll-margin-top: calc(var(--header-h) + 12px); }

.sec-head { margin-bottom: clamp(36px, 5vw, 56px); }
.sec-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.sec-no { font: 700 12px/1 var(--mono); letter-spacing: .14em; color: var(--copper-500); }
.sec-rule { flex: 1; max-width: 72px; height: 1px; background: var(--hairline-l2); }
.dark .sec-rule { background: var(--hairline-d2); }
.sec-label { font: 500 11px/1 var(--mono); letter-spacing: .16em; color: var(--steel-600); text-transform: uppercase; }
.dark .sec-label { color: var(--steel-400); }
.sec-head h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 700; letter-spacing: -.015em; line-height: 1.2; margin-bottom: 12px; }
.sec-sub { max-width: 640px; color: var(--steel-600); font-size: 16.5px; }
.dark .sec-sub { color: var(--steel-400); }

.corner { position: absolute; font: 400 15px/1 var(--mono); color: var(--steel-400); opacity: .55; pointer-events: none; user-select: none; }
.corner.tl { top: 16px; left: 16px; } .corner.tr { top: 16px; right: 16px; }
.corner.bl { bottom: 16px; left: 16px; } .corner.br { bottom: 16px; right: 16px; }

/* ============ hero ============ */
.hero { background: var(--ink-900); color: var(--paper); position: relative; padding: calc(var(--header-h) + clamp(48px, 8vw, 88px)) 0 0; overflow: hidden; }
.hero-inner { display: grid; gap: 48px; align-items: center; position: relative; }
.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.eyebrow .tick { width: 26px; height: 1px; background: var(--copper-500); flex-shrink: 0; }
.eyebrow span:last-child { font: 500 11px/1.5 var(--mono); letter-spacing: .18em; color: var(--steel-400); text-transform: uppercase; }
.hero h1 { font-size: clamp(34px, 6.2vw, 58px); font-weight: 700; line-height: 1.12; letter-spacing: -.02em; margin-bottom: 20px; }
.hero-sub { max-width: 560px; font-size: clamp(16px, 2vw, 18px); color: rgba(244, 242, 237, .78); margin-bottom: 32px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero-meta { font: 500 11px/1 var(--mono); letter-spacing: .14em; color: var(--steel-400); text-transform: uppercase; }

.hero-fig { position: relative; }
.topo-frame {
  position: relative; border: 1px solid var(--hairline-d); border-radius: var(--r);
  background:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px) 0 0 / 40px 40px,
    rgba(23, 28, 35, .5);
  padding: 8px;
}
.topo-frame svg { width: 100%; height: auto; display: block; }
.svg-mono { font-family: var(--mono); }
@media (max-width: 639px) { .svg-sm { display: none; } }

.stats-band { border-top: 1px solid var(--hairline-d); margin-top: clamp(48px, 7vw, 80px); position: relative; }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.stat { padding: 26px 20px; border-right: 1px solid var(--hairline-d); border-bottom: 1px solid var(--hairline-d); }
.stat:nth-child(2n) { border-right: none; }
.stat-num { display: block; font: 700 clamp(26px, 3.4vw, 34px)/1.1 var(--mono); color: var(--copper-400); margin-bottom: 6px; font-variant-numeric: tabular-nums; }
.stat-label { font: 500 10px/1.5 var(--mono); letter-spacing: .14em; color: var(--steel-400); text-transform: uppercase; }

/* ============ products ============ */
/* apple-style horizontal carousel when 3+ products */
.prod-carousel { }
.car-viewport {
  overflow-x: auto; scroll-behavior: smooth;
  scrollbar-width: none; -ms-overflow-style: none;
}
.car-viewport::-webkit-scrollbar { display: none; }
.car-track { display: flex; gap: 28px; scroll-snap-type: x mandatory; }
.car-track > .product-card { flex: 0 0 calc(50% - 14px); min-width: 0; scroll-snap-align: start; }
/* control row below the cards, right-aligned — apple.com style */
.car-nav { display: flex; justify-content: flex-end; align-items: center; gap: 10px; margin-top: 22px; }
.car-btn {
  width: 32px; height: 32px; display: grid; place-items: center;
  background: var(--paper-2); color: var(--ink-900); border: 1px solid var(--hairline-l2);
  border-radius: 50%;
  transition: opacity .2s, border-color .18s, color .18s;
}
.car-btn:hover { border-color: var(--copper-500); color: var(--copper-700); }
.car-btn:disabled { opacity: .3; cursor: default; }
.car-btn:disabled:hover { border-color: var(--hairline-l2); color: var(--ink-900); }
.car-btn svg { width: 14px; height: 14px; display: block; }
.car-btn .flip { transform: scaleX(-1); }

.products-grid { display: grid; gap: 28px; }
.product-card {
  background: var(--paper-2); border: 1px solid var(--hairline-l2); border-radius: var(--r);
  display: flex; flex-direction: column; overflow: hidden;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.product-card:hover { border-color: rgba(156, 95, 53, .45); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(14, 17, 22, .06); }
.product-fig {
  position: relative; aspect-ratio: 4 / 3; background: #FFFFFF;
  border-bottom: 1px solid var(--hairline-l);
  background-image:
    linear-gradient(rgba(14, 17, 22, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 17, 22, .028) 1px, transparent 1px);
  background-size: 24px 24px;
}
/* abs-positioned so the img never inflates fig intrinsic height: portrait (K600)
   and landscape (K800) art both letterbox inside the identical 4/3 frame */
.product-fig img {
  position: absolute; top: 28px; left: 28px; right: 28px; bottom: 28px;
  margin: auto; max-width: 86%; max-height: 86%; object-fit: contain;
}
.product-fig .corner { color: var(--steel-400); opacity: .6; }
.product-fig .corner.tl { top: 8px; left: 8px; } .product-fig .corner.tr { top: 8px; right: 8px; }
.product-fig .corner.bl { bottom: 8px; left: 8px; } .product-fig .corner.br { bottom: 8px; right: 8px; }

.product-body { padding: clamp(20px, 3vw, 30px); display: flex; flex-direction: column; flex: 1; }
.product-badges { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.badge {
  font: 700 10.5px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase;
  color: var(--copper-700); border: 1px solid rgba(156, 95, 53, .45);
  padding: 6px 10px; border-radius: 3px;
}
.stock { display: inline-flex; align-items: center; gap: 7px; font: 600 10px/1 var(--mono); letter-spacing: .1em; color: var(--steel-600); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); flex-shrink: 0; }
.dot-live { animation: breathe 2.4s ease-in-out infinite; }
@keyframes breathe { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(77, 214, 193, .35); } 50% { opacity: .55; box-shadow: 0 0 0 5px rgba(77, 214, 193, 0); } }

.product-body h3 { font-size: 20px; font-weight: 700; letter-spacing: -.01em; margin-bottom: 8px; }
.product-desc { color: var(--steel-600); font-size: 14.5px; margin-bottom: 16px; }
.tech-tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin-bottom: 18px; }
.tech-tags li {
  font: 600 10.5px/1 var(--mono); letter-spacing: .07em; text-transform: uppercase;
  color: var(--steel-600); border: 1px solid var(--hairline-l2);
  padding: 5px 9px; border-radius: 3px;
}

.dim { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.dim-line { flex: 1; height: 1px; background: var(--hairline-l2); position: relative; }
.dim-line::before, .dim-line::after { content: ''; position: absolute; top: -4px; width: 1px; height: 9px; background: var(--hairline-l2); }
.dim-line::before { left: 0; } .dim-line::after { right: 0; }
.dim-text { font: 600 10px/1 var(--mono); letter-spacing: .1em; color: var(--steel-600); white-space: nowrap; }

.spec-sheet { border-top: 1px solid var(--hairline-l2); margin-bottom: 20px; }
.spec-row { display: grid; grid-template-columns: 118px 1fr; gap: 4px 16px; padding: 9px 0; border-bottom: 1px solid var(--hairline-l); }
.spec-row:last-child { border-bottom: none; }
.spec-row dt { font: 600 10.5px/1.7 var(--mono); letter-spacing: .07em; text-transform: uppercase; color: var(--steel-600); }
.spec-row dd { font: 500 13px/1.6 var(--mono); color: var(--ink-900); overflow-wrap: break-word; }
.spec-row dd.hl { color: var(--copper-700); font-weight: 700; }

.product-link {
  margin-top: auto; display: inline-flex; align-items: center; gap: 8px;
  font: 600 14px/1 var(--sans); color: var(--copper-700); text-decoration: none;
  border-bottom: 1px solid transparent; padding-bottom: 2px; min-height: 32px;
}
.product-link svg { width: 15px; height: 15px; transition: transform .18s ease; }
.product-link:hover { border-bottom-color: var(--copper-700); }
.product-link:hover svg { transform: translateX(3px); }

.kit-note {
  margin-top: 28px; border: 1px dashed var(--hairline-l2); border-radius: var(--r);
  padding: 16px 20px; display: flex; gap: 14px; align-items: flex-start;
}
.kit-note .dot { margin-top: 7px; }
.kit-note p { font: 500 12.5px/1.7 var(--mono); color: var(--steel-600); }

/* ============ card grids ============ */
.card-grid { display: grid; gap: 20px; }
.card {
  background: var(--paper-2); border: 1px solid var(--hairline-l2); border-radius: var(--r);
  padding: clamp(24px, 3vw, 32px);
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: rgba(156, 95, 53, .4); transform: translateY(-2px); }
.card-icon {
  width: 46px; height: 46px; border-radius: var(--r); background: var(--copper-tint);
  border: 1px solid rgba(156, 95, 53, .3);
  display: grid; place-items: center; color: var(--copper-700); margin-bottom: 18px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 18px; font-weight: 700; letter-spacing: -.01em; margin-bottom: 10px; }
.card p { color: var(--steel-600); font-size: 14.5px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0; }
.chip {
  font: 700 11px/1 var(--mono); letter-spacing: .08em; color: var(--copper-700);
  border: 1px solid rgba(156, 95, 53, .4); padding: 6px 10px; border-radius: 3px;
}
.card .note { font-size: 13.5px; color: var(--steel-600); border-top: 1px solid var(--hairline-l); padding-top: 12px; margin-top: 4px; }
.card .note strong { color: var(--ink-900); }
.hl-line {
  margin: 12px 0; padding-left: 12px; border-left: 2px solid var(--copper-500);
  font: 600 12px/1.6 var(--mono); letter-spacing: .04em; color: var(--copper-700); text-transform: uppercase;
}
.mit-badge {
  display: inline-block; font: 700 10px/1 var(--mono); letter-spacing: .12em;
  color: var(--paper); background: var(--ink-900); padding: 6px 10px; border-radius: 3px; margin-top: 12px;
}

/* ============ mission ============ */
.mission-statement {
  font-size: clamp(24px, 3.6vw, 34px); font-weight: 700; letter-spacing: -.015em; line-height: 1.3;
  max-width: 820px; margin-bottom: 28px;
}
.mission-cols { display: grid; gap: 24px; max-width: 860px; margin-bottom: clamp(36px, 5vw, 56px); }
.mission-cols p { color: var(--steel-400); font-size: 15.5px; }
.mission-cols strong { color: var(--paper); font-weight: 600; }
.mini-grid { display: grid; gap: 16px; }
.mini-card {
  background: var(--ink-800); border: 1px solid var(--hairline-d); border-radius: var(--r);
  padding: 22px 24px; transition: border-color .2s ease;
}
.mini-card:hover { border-color: var(--hairline-d2); }
.mini-card .card-icon { background: rgba(201, 131, 90, .1); border-color: rgba(201, 131, 90, .35); color: var(--copper-400); margin-bottom: 14px; }
.mini-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 6px; color: var(--paper); }
.mini-card p { font-size: 13.5px; color: var(--steel-400); }

/* ============ locations ============ */
.addr { margin-top: 16px; border-top: 1px solid var(--hairline-l); padding-top: 14px; display: grid; gap: 8px; }
.addr p { display: flex; gap: 10px; align-items: flex-start; font: 500 12.5px/1.6 var(--mono); color: var(--steel-600); }
.addr svg { width: 14px; height: 14px; flex-shrink: 0; margin-top: 3px; color: var(--copper-700); }
.coords { margin-top: 14px; display: inline-flex; align-items: center; gap: 8px; font: 600 10.5px/1 var(--mono); letter-spacing: .1em; color: var(--steel-600); }
.coords svg { width: 13px; height: 13px; }

/* ============ coverage & expectations ============ */
.coverage-grid .card { text-align: left; }
.coverage-grid .card-icon { margin-inline: 0; }
.expect-grid .card p { font-size: 14.5px; }

/* ============ cta ============ */
.cta-section { text-align: center; }
.cta-section h2 { font-size: clamp(28px, 4.4vw, 40px); font-weight: 700; letter-spacing: -.015em; margin-bottom: 16px; }
.cta-section p { max-width: 620px; margin: 0 auto 32px; color: var(--steel-400); font-size: 16.5px; }

/* ============ contact ============ */
.contact-grid { display: grid; gap: 28px; align-items: start; }
.lead-form, .form-success {
  background: var(--paper-2); border: 1px solid var(--hairline-l2); border-radius: var(--r);
  padding: clamp(22px, 3.4vw, 34px);
}
.form-title { font: 700 12px/1 var(--mono); letter-spacing: .14em; color: var(--copper-700); text-transform: uppercase; margin-bottom: 22px; display: flex; align-items: center; gap: 10px; }
.form-title::after { content: ''; flex: 1; height: 1px; background: var(--hairline-l2); }
.frow { display: grid; gap: 16px; margin-bottom: 16px; }
.field label { display: block; font: 600 11px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; color: var(--steel-600); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; min-height: 46px; padding: 12px 14px;
  font: 400 16px/1.5 var(--sans); color: var(--ink-900);
  background: #FFFFFF; border: 1px solid var(--hairline-l2); border-radius: var(--r);
  transition: border-color .18s ease, box-shadow .18s ease;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--copper-500); box-shadow: 0 0 0 3px rgba(201, 131, 90, .14); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--red); }
.field input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(176, 82, 74, .14); }
.ferr { min-height: 18px; font-size: 12.5px; color: var(--red); margin-top: 5px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
/* honeypot anti-spam field: hidden from humans, bots fill it and get rejected */
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.privacy-note { font-size: 12.5px; color: var(--steel-600); line-height: 1.6; margin: 4px 0 20px; }
.privacy-note a { color: var(--copper-700); }
.spinner {
  width: 15px; height: 15px; border-radius: 50%;
  border: 2px solid rgba(14, 17, 22, .25); border-top-color: var(--ink-900);
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.form-status { margin-top: 12px; font-size: 13px; color: var(--steel-600); min-height: 18px; }
.form-success { text-align: left; }
.fs-title { font: 700 13px/1 var(--mono); letter-spacing: .14em; color: var(--copper-700); margin: 14px 0 8px; display: flex; align-items: center; gap: 10px; }
.fs-ref { font: 600 12px/1 var(--mono); color: var(--steel-600); letter-spacing: .08em; margin-bottom: 14px; }
.fs-ref span { color: var(--ink-900); background: var(--paper); border: 1px solid var(--hairline-l2); padding: 4px 8px; border-radius: 3px; }
.form-success > p:last-of-type { color: var(--steel-600); font-size: 14.5px; margin-bottom: 20px; }

.contact-info {
  background: var(--ink-900); color: var(--paper); border-radius: var(--r);
  padding: clamp(22px, 3.4vw, 34px); position: relative; overflow: hidden;
}
.ci-title { font: 700 11px/1 var(--mono); letter-spacing: .14em; color: var(--steel-400); text-transform: uppercase; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.ci-title::after { content: ''; flex: 1; height: 1px; background: var(--hairline-d2); }
.ci-row { display: flex; gap: 14px; align-items: flex-start; padding: 11px 0; border-bottom: 1px solid var(--hairline-d); }
.ci-row svg { width: 17px; height: 17px; color: var(--copper-400); flex-shrink: 0; margin-top: 4px; }
.ci-label { display: block; font: 600 9.5px/1 var(--mono); letter-spacing: .14em; color: var(--steel-400); text-transform: uppercase; margin-bottom: 3px; }
.ci-value { font-size: 15px; font-weight: 600; color: var(--paper); text-decoration: none; }
a.ci-value:hover { color: var(--copper-400); }
.ci-note { display: flex; align-items: center; gap: 10px; margin-top: 18px; font: 500 11.5px/1.6 var(--mono); color: var(--steel-400); }

/* ============ footer ============ */
.site-footer { background: var(--ink-900); color: var(--paper); position: relative; }
.footer-grid { display: grid; gap: 36px; padding: clamp(48px, 6vw, 72px) 0 40px; }
.footer-brand p { color: var(--steel-400); font-size: 14px; max-width: 300px; margin-top: 14px; }
.footer-col h3 { font: 700 11px/1 var(--mono); letter-spacing: .14em; color: var(--steel-400); text-transform: uppercase; margin-bottom: 16px; }
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a { color: rgba(244, 242, 237, .72); text-decoration: none; font-size: 14px; transition: color .18s; }
.footer-col a:hover { color: var(--copper-400); }
.footer-bottom {
  border-top: 1px solid var(--hairline-d); padding: 20px 0 28px;
  display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between;
}
.footer-bottom p { font-size: 12.5px; color: var(--steel-400); }
.sys-status { display: inline-flex; align-items: center; gap: 9px; font: 600 10.5px/1 var(--mono); letter-spacing: .12em; color: var(--steel-400); }

/* ============ to top ============ */
.to-top {
  position: fixed; right: 18px; bottom: 18px; z-index: 150;
  width: 44px; height: 44px; display: grid; place-items: center;
  background: var(--ink-900); color: var(--paper); border: 1px solid var(--hairline-d2);
  border-radius: var(--r); opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .25s, visibility .25s, transform .25s, border-color .18s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { border-color: var(--copper-400); color: var(--copper-400); }
.to-top svg { width: 18px; height: 18px; }

/* ============ reveal ============ */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .55s ease var(--d, 0s), transform .55s ease var(--d, 0s); }
.rv.in { opacity: 1; transform: none; }

/* ============ responsive ============ */
@media (max-width: 639px) {
  /* header: brand + menu only; region/lang switches live in the drawer */
  .header-actions .region-switch,
  .header-actions .lang-switch { display: none; }
  .header-inner { gap: 12px; }
  .header-actions { gap: 8px; }

  /* product cards: tighten type + spec columns for narrow screens */
  .products-grid { gap: 20px; }
  .product-body h3 { font-size: 18px; }
  .product-desc { font-size: 13.5px; }
  .spec-row { grid-template-columns: 96px 1fr; gap: 4px 12px; }
  .spec-row dd { font-size: 12px; }
  .product-fig img { top: 16px; left: 16px; right: 16px; bottom: 16px; }
  .tech-tags li { font-size: 9.5px; padding: 4px 7px; }

  /* carousel: one card per view on phones */
  .car-track { gap: 20px; }
  .car-track > .product-card { flex-basis: 100%; }
  .car-nav { margin-top: 18px; }
}
@media (min-width: 640px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .stat { border-bottom: none; }
  .stat:nth-child(2n) { border-right: 1px solid var(--hairline-d); }
  .stat:last-child { border-right: none; }
  .frow.cols-2 { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 768px) {
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .mini-grid { grid-template-columns: repeat(3, 1fr); }
  .mission-cols { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .main-nav { display: flex; }
  .header-cta { display: inline-flex; }
  .menu-btn { display: none; }
  .hero-inner { grid-template-columns: 1.02fr 1fr; gap: 56px; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .expect-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1.25fr 1fr; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .rv { opacity: 1; transform: none; }
}
@media print {
  .site-header, .drawer, .drawer-overlay, .to-top, .skip-link { display: none !important; }
  body { background: #fff; }
}

.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }