/* =========================================================================
   AQUARIO — "Swiss Catalog" homepage
   International Typographic Style: strict modular grid, hairline rules,
   data-forward restraint. Azure (#008DD2) is the SINGLE accent.
   Display = Archivo / Archivo Expanded · Body = Inter · Mono = Space Mono
   ========================================================================= */

/* ---- tokens ---------------------------------------------------------- */
:root {
  /* palette */
  --white:    #FFFFFF;
  --off:      #FAFAFA;
  --ink:      #111418;   /* near-black */
  --line:     #E5E7EB;   /* hairline grid */
  --grey:     #5B616E;   /* mid grey, ~5.7:1 on white / ~5.5:1 on off — headroom */
  --azure:    #008DD2;   /* the one accent — fills, lines, large display only */
  --azure-700:#0269A3;   /* small-text azure, >=4.5:1 on white & off-white */

  /* modular grid */
  --maxw: 1280px;
  --gut:  24px;          /* gutter */
  --cols: 12;

  /* type scale (deliberate steps) */
  --fs-mono: 0.72rem;
  --fs-body: 1rem;
  --fs-lead: 1.0625rem;
  --fs-h3:   1.1875rem;
  --fs-h2:   clamp(1.75rem, 1.1rem + 2.4vw, 2.75rem);
  --fs-hero: clamp(2.6rem, 1.2rem + 6.2vw, 5.5rem);

  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --expanded:"Archivo Expanded", "Archivo", sans-serif;
  --body:    "Inter", system-ui, sans-serif;
  --mono:    "Space Mono", "JetBrains Mono", ui-monospace, monospace;

  /* motion */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --rev-y: 14px;
}

/* ---- reset ----------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--fs-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, dl, dd, figure { margin: 0; }
button { font: inherit; cursor: pointer; }

.mono { font-family: var(--mono); letter-spacing: .01em; }

/* focus visibility (a11y) */
:focus-visible {
  outline: 2px solid var(--azure);
  outline-offset: 2px;
}

/* skip link */
.skip-link {
  position: absolute; left: 12px; top: -48px;
  background: var(--ink); color: var(--white);
  padding: 8px 14px; z-index: 200;
  font: 600 .85rem var(--display);
  transition: top .15s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---- grid wrapper (the modular spine) -------------------------------- */
.grid-wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

/* ---- buttons --------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  font-family: var(--display);
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .01em;
  padding: 11px 20px;
  border: 1.5px solid var(--ink);
  border-radius: 0;                 /* Swiss: zero radius */
  background: var(--white);
  color: var(--ink);
  transition: background .18s var(--ease), color .18s var(--ease),
              transform .18s var(--ease), border-color .18s var(--ease);
}
.btn--lg { padding: 14px 26px; font-size: .95rem; }
.btn--solid { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn--solid:hover { background: var(--azure-700); border-color: var(--azure-700); }
.btn--line:hover  { background: var(--ink); color: var(--white); }
.btn--ghost { border-color: var(--line); padding: 9px 16px; }
.btn--ghost:hover { border-color: var(--ink); }
.btn:active { transform: translateY(1px); }

/* =========================================================================
   HEADER
   ========================================================================= */
.site-head {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--ink);
}
.site-head--shadow { box-shadow: 0 1px 0 var(--ink), 0 10px 24px -18px rgba(17,20,24,.4); }
.site-head__inner {
  display: flex; align-items: center; gap: 24px;
  height: 66px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink);
}
.brand__mark { flex: none; }
.brand__word {
  font-family: var(--expanded);
  font-weight: 800;
  letter-spacing: .08em;
  font-size: 1.05rem;
}
.site-nav { margin-left: 12px; }
.site-nav__list { display: flex; gap: 4px; }
.site-nav__list a {
  display: inline-block;
  font-family: var(--display);
  font-weight: 600;
  font-size: .9rem;
  padding: 8px 12px;
  color: var(--ink);
  position: relative;
}
.site-nav__list a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px;
  height: 2px; background: var(--azure);
  transform: scaleX(0); transform-origin: left;
  transition: transform .2s var(--ease);
}
.site-nav__list a:hover::after,
.site-nav__list a:focus-visible::after { transform: scaleX(1); }

.site-head__actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border: 1.5px solid var(--line); background: var(--white); color: var(--ink);
  border-radius: 0;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}
.icon-btn:hover { border-color: var(--ink); color: var(--azure); }

/* burger */
.burger {
  display: none;
  width: 42px; height: 40px;
  border: 1.5px solid var(--line); background: var(--white);
  flex-direction: column; align-items: center; justify-content: center; gap: 4px;
}
.burger span { width: 18px; height: 2px; background: var(--ink); transition: transform .2s var(--ease), opacity .2s var(--ease); }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* search drawer */
.search-drawer {
  border-bottom: 1px solid var(--ink);
  background: var(--off);
  padding-block: 16px;
}
.search-form { display: flex; align-items: center; gap: 12px; }
.search-form__sku {
  font-family: var(--mono); font-size: var(--fs-mono);
  color: var(--grey); white-space: nowrap;
}
.search-form__input {
  flex: 1; min-width: 0;
  border: 1.5px solid var(--ink); border-radius: 0;
  padding: 11px 14px; font: 400 .95rem var(--body);
  background: var(--white);
}

/* mobile nav */
.m-nav {
  position: fixed; inset: 66px 0 0 0; z-index: 90;
  background: var(--white);
  border-top: 1px solid var(--ink);
  padding-block: 12px;
  overflow-y: auto;
}
.m-nav__list li {
  display: flex; align-items: baseline; gap: 16px;
  border-bottom: 1px solid var(--line);
}
.m-nav__list .idx { font-family: var(--mono); font-size: .85rem; color: var(--azure-700); }
.m-nav__list a {
  display: block; flex: 1;
  font-family: var(--display); font-weight: 700; font-size: 1.3rem;
  padding: 16px 0;
}

/* =========================================================================
   HERO — catalog cover
   ========================================================================= */
.hero {
  border-bottom: 1px solid var(--ink);
  /* faint vertical grid lines behind the two-column hero.
     Tied to the actual content spine: the grid-wrap is centered with
     gutters, so we paint the verticals only within that column band and
     step them at 1/6 of the content width (matches the modular columns). */
  --hero-band: min(var(--maxw), 100%);
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: calc(var(--hero-band) / 6) 100%;
  background-position: center top;
  background-repeat: repeat-x;
  background-clip: content-box;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 0;
  align-items: stretch;
}
.hero__cover {
  padding: 48px 40px 48px 0;
  border-right: 1px solid var(--ink);
  padding-right: 40px;
}
.hero__grid > .hero__cover { padding-left: 0; }

.kicker { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.kicker__rule { width: 48px; height: 2px; background: var(--azure); }
.kicker .mono { font-size: var(--fs-mono); color: var(--grey); letter-spacing: .12em; }

.hero__title {
  font-family: var(--expanded);
  font-weight: 800;
  font-size: var(--fs-hero);
  line-height: .92;
  letter-spacing: -.01em;
  text-transform: none;
}
.hero__title-em { color: var(--azure); }

.hero__lead {
  margin-top: 22px;
  max-width: 46ch;
  font-size: var(--fs-lead);
  color: var(--ink);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* the numbered catalog index */
.cat-index {
  margin-top: 38px;
  border-top: 1px solid var(--ink);
  padding-top: 14px;
}
.cat-index__head {
  font-size: var(--fs-mono); color: var(--grey);
  letter-spacing: .12em; margin-bottom: 6px;
}
.cat-index__list li { border-bottom: 1px solid var(--line); }
.cat-index__list a {
  display: grid;
  grid-template-columns: 2.4rem 1fr auto auto;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  transition: color .15s var(--ease);
}
.cat-index__n { color: var(--azure-700); font-size: .8rem; }
.cat-index__t { font-family: var(--display); font-weight: 600; font-size: 1rem; }
.cat-index__dot {
  height: 0; border-bottom: 1px dotted var(--line);
  transform: translateY(-3px);
}
.cat-index__pg { font-size: var(--fs-mono); color: var(--grey); }
.cat-index__list a:hover { color: var(--azure); }
.cat-index__list a:hover .cat-index__t { text-decoration: underline; text-underline-offset: 3px; }
.cat-index__more {
  display: inline-block; margin-top: 12px;
  font-size: var(--fs-mono); color: var(--ink);
  border-bottom: 1.5px solid var(--azure); padding-bottom: 2px;
}
.cat-index__more:hover { color: var(--azure); }

/* signature: small-multiples H–Q board */
.hq-board {
  padding: 40px 0 40px 40px;
  display: flex; flex-direction: column;
}
.hq-board__cap {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 12px; flex-wrap: wrap;
  font-size: var(--fs-mono); color: var(--grey); letter-spacing: .08em;
  padding-bottom: 12px; border-bottom: 1px solid var(--ink);
}
.hq-board__legend { color: var(--ink); }
.hq-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  /* internal hairlines between cells */
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-top: none;
  margin-top: 0;
}
.hq-cell { background: var(--white); padding: 14px 14px 12px; }
.hq-cell__chart svg { width: 100%; height: auto; }
.hq-cell__curve { stroke-linecap: round; }
.hq-cell__meta {
  display: flex; flex-direction: column; gap: 2px; margin-top: 8px;
}
.hq-cell__sku { font-size: .8rem; font-weight: 700; color: var(--ink); }
.hq-cell__spec { font-size: .72rem; color: var(--grey); }
.hq-board__note { margin-top: 12px; font-size: var(--fs-mono); color: var(--grey); }

/* =========================================================================
   SECTION HEADS (shared)
   ========================================================================= */
.sec-head { padding: 48px 0 28px; }
.sec-head--tight { padding-top: 0; }
/* section labels are neutral, NOT a competing numeric index —
   strict numbering is reserved for the real catalog list */
.sec-head__no {
  font-size: var(--fs-mono); color: var(--grey);
  letter-spacing: .14em; margin-bottom: 8px;
}
.sec-head__title {
  font-family: var(--expanded); font-weight: 700;
  font-size: var(--fs-h2); line-height: 1.02; letter-spacing: -.01em;
  max-width: 18ch;
}
.sec-head__lead {
  margin-top: 14px; max-width: 54ch;
  color: var(--grey); font-size: var(--fs-lead);
}

/* =========================================================================
   QUICK access tiles
   ========================================================================= */
.quick { border-bottom: 1px solid var(--ink); }
.quick__row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px; background: var(--line);
  border-left: 1px solid var(--line);
}
.quick__tile {
  position: relative;
  background: var(--white);
  padding: 24px 18px 22px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 6px;
  transition: background .18s var(--ease);
}
.quick__tile:hover { background: var(--off); }
.quick__ic { color: var(--ink); margin-bottom: 8px; transition: color .18s var(--ease); }
.quick__tile:hover .quick__ic { color: var(--azure); }
.quick__link {
  font-family: var(--display); font-weight: 700; font-size: 1.05rem; color: var(--ink);
}
.quick__sub { font-size: .82rem; color: var(--grey); }
/* stretched link makes the whole tile clickable */
.stretched::after { content: ""; position: absolute; inset: 0; }

/* =========================================================================
   CATALOG grid (10 cells)
   ========================================================================= */
.catalog { border-bottom: 1px solid var(--ink); }
.cat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 56px;
}
.cat-cell {
  background: var(--white);
  padding: 22px 20px 24px;
  min-height: 168px;
  display: flex; flex-direction: column;
  position: relative;
  transition: background .18s var(--ease), transform .18s var(--ease);
}
.cat-cell:hover { background: var(--off); }
.cat-cell__n {
  font-size: .8rem; color: var(--azure-700); margin-bottom: 14px;
  border-bottom: 1.5px solid var(--azure); width: max-content; padding-bottom: 1px;
}
.cat-cell__h {
  font-family: var(--display); font-weight: 700; font-size: var(--fs-h3);
  line-height: 1.08; margin-bottom: 8px;
}
.cat-cell__p { font-size: .88rem; color: var(--grey); flex: 1; }
.cat-cell__tag {
  margin-top: 14px; font-size: var(--fs-mono); color: var(--ink);
  padding-top: 10px; border-top: 1px solid var(--line);
}

/* =========================================================================
   PODBOR — 3 steps + live H–Q
   ========================================================================= */
.podbor { border-bottom: 1px solid var(--ink); background: var(--off); }
.podbor__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  padding-block: 56px;
}
.podbor__left { padding-right: 48px; }

.steps { margin: 28px 0; }
.step {
  display: grid; grid-template-columns: 3rem 1fr; gap: 16px;
  padding: 20px 0; border-top: 1px solid var(--line);
}
.step:first-child { border-top: 1px solid var(--ink); }
/* process steps read as a sequence, not the catalog index — neutral ink,
   distinct in size/weight from the small azure catalog numbers */
.step__n { font-size: 1.5rem; font-weight: 700; color: var(--ink); line-height: 1; }
.step__h { font-family: var(--display); font-weight: 700; font-size: var(--fs-h3); }
.step__p { margin-top: 4px; color: var(--grey); font-size: .9rem; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  font-family: var(--mono); font-size: .72rem;
  border: 1px solid var(--line); padding: 5px 10px; color: var(--grey);
}
/* selected: non-color cues (filled bg + white text + leading check),
   not color alone; azure-700 keeps white label >=4.5:1 */
.chip.is-active {
  border-color: var(--azure-700); background: var(--azure-700);
  color: var(--white); font-weight: 700;
}
.chip.is-active::before {
  content: "\2713\00a0"; /* ✓ + nbsp */
  font-weight: 700;
}

.params { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.params > div {
  border: 1px solid var(--line); padding: 8px 12px;
  display: flex; flex-direction: column; gap: 2px;
}
.params dt { font-size: .7rem; color: var(--grey); letter-spacing: .08em; }
.params dd { font-size: .9rem; font-weight: 700; color: var(--ink); }

.step__hit { display: inline-block; margin-top: 10px; font-size: .8rem; color: var(--azure-700); font-weight: 700; }

/* live panel */
.podbor__panel {
  background: var(--white);
  border: 1px solid var(--ink);
  padding: 20px;
  align-self: start;
}
.panel-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
  font-size: var(--fs-mono); color: var(--grey); letter-spacing: .08em;
  border-bottom: 1px solid var(--ink); padding-bottom: 12px;
}
.panel-head__sku { color: var(--azure-700); font-weight: 700; }
.big-hq { padding: 18px 0 6px; }
.big-hq svg { width: 100%; height: auto; }
.big-hq__curve { stroke-linecap: round; }
.big-hq__lab { font-family: var(--mono); font-size: .72rem; fill: var(--grey); }
.big-hq__tick { font-family: var(--mono); font-size: .7rem; fill: var(--grey); }
.panel-read {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--line); border: 1px solid var(--line); margin-top: 8px;
}
.panel-read > div { background: var(--white); padding: 10px 12px; }
.panel-read dt { font-size: .7rem; color: var(--grey); letter-spacing: .08em; }
.panel-read dd { font-size: 1rem; font-weight: 700; color: var(--ink); margin-top: 2px; }

/* =========================================================================
   3D scheme teaser
   ========================================================================= */
.scheme3d { border-bottom: 1px solid var(--ink); }
.scheme3d__grid {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px;
  align-items: center; padding-block: 56px;
}
.scheme3d__list { margin: 22px 0 26px; color: var(--grey); font-size: .85rem; }
.scheme3d__list li {
  position: relative; padding: 7px 0 7px 20px; border-bottom: 1px solid var(--line);
}
.scheme3d__list li::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 9px; height: 2px; background: var(--azure); transform: translateY(-50%);
}
.scheme3d__view {
  border: 1px solid var(--ink); background: var(--off);
  padding: 20px; position: relative;
}
.scheme3d__cap {
  display: block; font-size: var(--fs-mono); color: var(--grey);
  letter-spacing: .08em; margin-bottom: 8px;
}
.scheme3d__view svg { width: 100%; height: auto; }
.scheme3d__t { font-family: var(--mono); font-size: .62rem; fill: var(--grey); }
/* spec readout strip under the iso scene — keeps the frame data-dense */
.scheme3d__spec {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin-top: 14px; background: var(--line);
  border: 1px solid var(--line);
}
.scheme3d__spec > div { background: var(--off); padding: 9px 10px; }
.scheme3d__spec dt { font-size: .7rem; color: var(--grey); letter-spacing: .06em; }
.scheme3d__spec dd { font-size: .82rem; font-weight: 700; color: var(--ink); margin-top: 3px; }

/* =========================================================================
   STATS band — count-up
   ========================================================================= */
.stats { background: var(--ink); color: var(--white); }
.stats__row {
  display: grid; grid-template-columns: repeat(5, 1fr);
}
.stat {
  padding: 40px 20px;
  border-left: 1px solid rgba(255,255,255,.14);
  display: flex; flex-direction: column; gap: 8px;
}
.stat:first-child { border-left: none; }
.stat__num {
  font-family: var(--mono); font-weight: 700;
  font-size: clamp(1.8rem, 1rem + 2.4vw, 2.9rem); line-height: 1;
  color: var(--white);
}
.stat--year .stat__num { color: var(--azure); }
.stat__lab { font-size: .82rem; color: rgba(255,255,255,.82); }

/* =========================================================================
   ABOUT
   ========================================================================= */
.about { border-bottom: 1px solid var(--ink); }
.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  grid-template-areas: "head facts" "lead facts";
  gap: 0 48px;
  padding-block: 56px;
}
.about__head { grid-area: head; }
.about__lead { grid-area: lead; max-width: 52ch; }
.about__lead p { margin-bottom: 14px; color: var(--ink); font-size: var(--fs-lead); }
.about__facts {
  grid-area: facts;
  border: 1px solid var(--ink);
  align-self: start;
}
.about__fact {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
  padding: 16px 18px; border-bottom: 1px solid var(--line);
}
.about__fact:last-child { border-bottom: none; }
.about__fact dt { font-size: .7rem; color: var(--grey); letter-spacing: .08em; }
.about__fact dd { font-size: .95rem; font-weight: 700; color: var(--ink); text-align: right; }

/* =========================================================================
   WHERE TO BUY
   ========================================================================= */
.buy { border-bottom: 1px solid var(--ink); background: var(--off); }
.buy__grid {
  display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px;
  align-items: center; padding-block: 56px;
}
.buy__nums { display: flex; gap: 28px; margin: 24px 0 26px; flex-wrap: wrap; }
.buy__nums dt { font-size: clamp(1.6rem, 1rem + 1.6vw, 2.2rem); font-weight: 700; color: var(--azure); line-height: 1; }
.buy__nums dd { font-size: .8rem; color: var(--grey); margin-top: 4px; }
.buy__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.buy__map {
  border: 1px solid var(--ink); background: var(--white); padding: 18px; position: relative;
}
.buy__map-cap { display: block; font-size: var(--fs-mono); color: var(--grey); letter-spacing: .08em; margin-bottom: 8px; }
.buy__map svg { width: 100%; height: auto; }
.buy__legend { display: flex; gap: 20px; margin-top: 12px; font-size: var(--fs-mono); color: var(--grey); }
.buy__legend li { display: flex; align-items: center; gap: 7px; }
/* region readout strip — keeps the map frame data-dense */
.buy__regions {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  margin-top: 12px; background: var(--line); border: 1px solid var(--line);
}
.buy__regions > div { background: var(--white); padding: 9px 10px; }
.buy__regions dt { font-size: .7rem; color: var(--grey); letter-spacing: .06em; }
.buy__regions dd { font-size: .92rem; font-weight: 700; color: var(--ink); margin-top: 3px; }
.dot { width: 10px; height: 10px; display: inline-block; }
.dot--azure { background: var(--azure); border-radius: 50%; }
.dot--dark  { background: var(--ink); }

/* =========================================================================
   DOCS
   ========================================================================= */
.docs { border-bottom: 1px solid var(--ink); padding-bottom: 56px; }
.doc-list { border-top: 1px solid var(--ink); }
.doc-row { border-bottom: 1px solid var(--line); }
.doc-row a {
  display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 16px;
  padding: 18px 4px; transition: background .15s var(--ease), padding-left .15s var(--ease);
}
.doc-row a:hover { background: var(--off); padding-left: 14px; }
.doc-row__ic { color: var(--grey); display: inline-flex; }
.doc-row a:hover .doc-row__ic { color: var(--azure); }
.doc-row__name { font-family: var(--display); font-weight: 600; font-size: 1.02rem; }
.doc-row__meta { font-size: var(--fs-mono); color: var(--grey); }

/* =========================================================================
   FOOTER
   ========================================================================= */
.site-foot { background: var(--white); border-top: 1px solid var(--ink); }
.site-foot__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-block: 48px;
}
.brand--foot .brand__word { font-size: 1rem; }
.site-foot__tag { margin-top: 14px; color: var(--grey); font-size: .9rem; }
.site-foot__partner { margin-top: 10px; font-size: .9rem; }
.site-foot__partner a { border-bottom: 1.5px solid var(--azure); }
.site-foot__partner a:hover { color: var(--azure); }
.site-foot__h { font-size: var(--fs-mono); color: var(--grey); letter-spacing: .12em; margin-bottom: 14px; }
.site-foot__col ul li { margin-bottom: 9px; }
.site-foot__col a { font-size: .92rem; color: var(--ink); }
.site-foot__col a:hover { color: var(--azure); }
.site-foot__addr { font-style: normal; font-size: .92rem; color: var(--ink); line-height: 1.7; }
.site-foot__addr a { border-bottom: 1px solid var(--line); }
.site-foot__addr a:hover { color: var(--azure); border-color: var(--azure); }
.site-foot__social { display: flex; gap: 10px; margin-top: 16px; }
.site-foot__social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border: 1.5px solid var(--line); color: var(--ink);
  transition: border-color .15s var(--ease), color .15s var(--ease);
}
.site-foot__social a:hover { border-color: var(--ink); color: var(--azure); }
.site-foot__bar {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-block: 16px; border-top: 1px solid var(--ink);
  font-size: var(--fs-mono); color: var(--grey);
}
.site-foot__iso { letter-spacing: .12em; }

/* =========================================================================
   MOTION — reveal on scroll
   ========================================================================= */
/* No-JS / IO-failure fallback: content is visible by default and only
   hidden for the reveal animation when <html> carries the `js` class. */
.js [data-reveal] {
  opacity: 0; transform: translateY(var(--rev-y));
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* H–Q path-draw setup (JS sets dash via stroke-dasharray) */
[data-hq-path], [data-bighq-path] { transition: stroke-dashoffset 1.1s var(--ease); }
.js [data-hq-dot], .js [data-bighq-point] { transition: opacity .4s var(--ease) .9s; opacity: 0; }
.js .is-in [data-hq-dot], .js .is-in [data-bighq-point] { opacity: 1; }

/* map pins pop — fill-box so SVG nodes scale around their own center */
.pin { transition: transform .4s var(--ease); transform-box: fill-box; transform-origin: center; }

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1100px) {
  /* single-column hero: drop the ghost verticals so they don't paint as
     arbitrary stripes that align to nothing */
  .hero { background-image: none; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__cover { border-right: none; border-bottom: 1px solid var(--ink); padding-right: 0; padding-bottom: 36px; }
  .hq-board { padding: 32px 0 8px; }
  .podbor__grid, .scheme3d__grid, .buy__grid { grid-template-columns: 1fr; gap: 36px; }
  .podbor__left { padding-right: 0; }
  .about__grid {
    grid-template-columns: 1fr;
    grid-template-areas: "head" "lead" "facts";
    gap: 24px;
  }
  /* one modular spine at tablet: quick + catalog share the SAME column
     count so their hairlines line up to a single grid */
  .quick__row { grid-template-columns: repeat(2, 1fr); }
  .quick__tile:last-child { grid-column: span 2; }
  .cat-grid   { grid-template-columns: repeat(2, 1fr); }
  .stats__row { grid-template-columns: repeat(3, 1fr); }
  .stat:nth-child(4) { border-left: none; }
  .site-foot__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .site-nav { display: none; }
  .btn--ghost { display: none; }
  .burger { display: inline-flex; }
}

@media (max-width: 640px) {
  :root { --gut: 18px; }
  .hero__cover { padding-top: 36px; padding-bottom: 32px; }
  .hq-grid { grid-template-columns: 1fr 1fr; }
  .quick__row { grid-template-columns: repeat(2, 1fr); }
  .quick__tile:last-child { grid-column: span 2; }
  .cat-grid   { grid-template-columns: 1fr; }
  .stats__row { grid-template-columns: repeat(2, 1fr); }
  .stat { border-left: 1px solid rgba(255,255,255,.14); }
  .stat:nth-child(odd) { border-left: none; }
  .stat--year { grid-column: span 2; }
  .site-foot__grid { grid-template-columns: 1fr; gap: 28px; }
  .search-form { flex-wrap: wrap; }
  .search-form__sku { width: 100%; }
}

/* keep SVG numeric ticks legible: hide the small H/Q tick numbers on the
   narrowest screens (axis H/Q letter labels stay) so nothing renders sub-8px */
@media (max-width: 480px) {
  .big-hq__tick { display: none; }
}

@media (max-width: 400px) {
  .hq-grid { grid-template-columns: 1fr; }
  .stats__row { grid-template-columns: 1fr 1fr; }
}

/* =========================================================================
   REDUCED MOTION
   ========================================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  [data-hq-dot], [data-bighq-point] { opacity: 1; }
  [data-hq-path], [data-bighq-path] { stroke-dashoffset: 0 !important; }
}