/* SLCN Pneumatic — air preparation demo
   Single committed light theme: instrument-panel paper, navy ink, brand green as the only bright accent. */

:root {
  --paper: #eef1ef;
  --surface: #ffffff;
  --plate: #f7f9f8;
  --tint: #e2e9e5;
  --ink: #0c1a24;
  --ink-2: #455560;
  --ink-3: #74838d;
  --line: #cdd5d1;
  --navy: #0b3d75;
  --navy-deep: #07294f;
  --green: #2e9e43;
  --green-deep: #1b7a31;
  --focus: #2e9e43;

  --f-display: "Big Shoulders Display", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Arial Narrow", Impact, sans-serif;
  --f-body: "Hanken Grotesk", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "IBM Plex Mono", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", ui-monospace, "SF Mono", Menlo, monospace;

  --gutter: clamp(16px, 4vw, 40px);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.55 var(--f-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; text-wrap: balance; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
main:focus { outline: none; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.eyebrow {
  font: 500 12px/1.2 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2);
}

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.head-row { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.brand-mark { width: 28px; height: 24px; }
.brand-word { font: 800 28px/1 var(--f-display); letter-spacing: .04em; color: var(--navy); }
.brand-sub:empty { display: none; }
.brand-sub { font: 500 11px/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); padding-top: 4px; }
.nav { display: flex; gap: 6px; margin-left: auto; }
.nav a {
  text-decoration: none; padding: 8px 12px; font-weight: 600; font-size: 15px; color: var(--ink-2);
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--ink); }
.nav a.on { color: var(--ink); border-bottom-color: var(--green); }
.nav-toggle { display: none; }
.enq-btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 600; font-size: 14px;
  border: 1.5px solid var(--navy); color: var(--navy); padding: 8px 14px; border-radius: 2px;
  transition: background .15s, color .15s;
}
.enq-btn:hover, .enq-btn.on { background: var(--navy); color: #fff; }
.enq-count { font: 500 12px/1 var(--f-mono); background: var(--navy); color: #fff; padding: 3px 6px; border-radius: 2px; min-width: 22px; text-align: center; }
.enq-btn:hover .enq-count, .enq-btn.on .enq-count { background: #fff; color: var(--navy); }
.enq-btn.has .enq-count { background: var(--green-deep); color: #fff; }

@media (max-width: 760px) {
  .head-row { gap: 12px; flex-wrap: wrap; height: auto; padding-block: 10px; }
  .nav-toggle { display: inline-block; margin-left: auto; background: none; border: 1.5px solid var(--line); padding: 7px 12px; border-radius: 2px; font-weight: 600; }
  .nav { display: none; order: 5; width: 100%; flex-direction: column; margin: 0; border-top: 1px solid var(--line); padding-top: 8px; }
  .nav.open { display: flex; }
  .enq-btn { padding: 7px 10px; }
}

/* ---------- language switch ---------- */
.lang-btn {
  font: 600 13px/1 var(--f-mono); letter-spacing: .04em; border: 1.5px solid var(--line); background: transparent;
  padding: 9px 11px; border-radius: 2px; cursor: pointer; color: var(--ink); min-width: 44px;
  transition: border-color .15s, color .15s;
}
.lang-btn:hover { border-color: var(--navy); color: var(--navy); }

/* ---------- Chinese typography ---------- */
html[lang="zh-CN"] body { line-height: 1.7; }
html[lang="zh-CN"] .eyebrow, html[lang="zh-CN"] .tag, html[lang="zh-CN"] .stat span, html[lang="zh-CN"] .chart-h,
html[lang="zh-CN"] .f-block h3, html[lang="zh-CN"] .mrow.mh, html[lang="zh-CN"] .fig span, html[lang="zh-CN"] .series-stats span,
html[lang="zh-CN"] .sel-ctl label, html[lang="zh-CN"] .sel-lbl, html[lang="zh-CN"] .crumbs, html[lang="zh-CN"] .lines li span,
html[lang="zh-CN"] .contact-card dt, html[lang="zh-CN"] .fld label, html[lang="zh-CN"] .site-foot h3,
html[lang="zh-CN"] .brand-sub, html[lang="zh-CN"] .seg-label, html[lang="zh-CN"] .plate .ph-in span { letter-spacing: .04em; }
html[lang="zh-CN"] .brand-sub { font-size: 12px; }
html[lang="zh-CN"] .stage-word { font-size: clamp(44px, 8vw, 112px); line-height: 1; letter-spacing: 0; }
html[lang="zh-CN"] .hero-kicker, html[lang="zh-CN"] .sec-head h2, html[lang="zh-CN"] .page-head h1, html[lang="zh-CN"] .selector h2,
html[lang="zh-CN"] .info h1, html[lang="zh-CN"] .models h2, html[lang="zh-CN"] .specs-sec h2, html[lang="zh-CN"] .related h2,
html[lang="zh-CN"] .tile-body h3, html[lang="zh-CN"] .panel h2 { font-weight: 900; line-height: 1.1; }
html[lang="zh-CN"] .card-name { font-weight: 700; }
html[lang="zh-CN"] .btn, html[lang="zh-CN"] .nav a { letter-spacing: .02em; }
@media (max-width: 760px) { html[lang="zh-CN"] .stage-word { font-size: 46px; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 20px; border-radius: 2px; border: 1.5px solid var(--ink); background: transparent;
  font-weight: 700; font-size: 15px; text-decoration: none; cursor: pointer; line-height: 1.1;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn:hover { background: var(--ink); color: #fff; }
.btn.primary { background: var(--green-deep); border-color: var(--green-deep); color: #fff; }
.btn.primary:hover { background: var(--navy-deep); border-color: var(--navy-deep); }
.btn.small { padding: 8px 12px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: default; }
.link-arrow { font-weight: 700; text-decoration: none; border-bottom: 2px solid var(--green); padding-bottom: 1px; }
.link-arrow:hover { color: var(--navy); }
.link-arrow::after { content: " →"; }

/* ---------- ruler motif ---------- */
.ruler {
  height: 11px; margin-top: 12px;
  background:
    repeating-linear-gradient(90deg, var(--ink) 0 1px, transparent 1px 40px) bottom / 100% 11px no-repeat,
    repeating-linear-gradient(90deg, var(--ink-3) 0 1px, transparent 1px 8px) bottom / 100% 5px no-repeat;
  border-bottom: 1px solid var(--ink);
  opacity: .7;
}

/* ---------- section scaffolding ---------- */
.section { padding-block: clamp(48px, 7vw, 88px); }
.sec-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 28px; }
.sec-head h2 { font: 800 clamp(34px, 4.6vw, 54px)/.95 var(--f-display); text-transform: uppercase; letter-spacing: .005em; }
.sec-head p { max-width: 52ch; color: var(--ink-2); }
.sec-wrap-ruler { margin-bottom: 32px; }

/* ---------- hero ---------- */
.hero { padding-top: clamp(28px, 4vw, 56px); }
.hero-top {
  display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); align-items: end;
}
.hero-top .eyebrow { margin-bottom: 14px; }
.hero-lede { font-size: clamp(17px, 1.6vw, 19px); color: var(--ink-2); max-width: 46ch; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.hero-kicker { font: 800 clamp(26px, 3.2vw, 40px)/1 var(--f-display); text-transform: uppercase; color: var(--navy); }

.airline { position: relative; margin-top: clamp(18px, 3vw, 36px); }
.stages { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(8px, 2vw, 28px); position: relative; }
.stage { margin: 0; position: relative; display: flex; flex-direction: column; background: var(--paper); /* opaque backdrop so multiply-blended photos survive the entrance animation */ }
.stage-word {
  font: 900 clamp(38px, 6.4vw, 88px)/.86 var(--f-display); text-transform: uppercase; letter-spacing: -.005em;
  color: var(--ink); white-space: nowrap; margin-bottom: 14px;
}
.stage:nth-child(2) .stage-word { color: var(--navy); }
.stage:nth-child(3) .stage-word { color: var(--ink); }
.stage-no { font: 500 12px/1 var(--f-mono); letter-spacing: .1em; color: var(--ink-2); margin-bottom: 10px; display: block; }
.stage-img { position: relative; height: clamp(300px, 36vw, 470px); margin-top: 12px; display: flex; justify-content: center; align-items: center; overflow: hidden; }
.stage-img img { height: 100%; width: auto; max-width: 100%; mix-blend-mode: multiply; object-fit: contain; }
.stage figcaption { font: 500 12.5px/1.45 var(--f-mono); color: var(--ink-2); margin-top: 8px; }
.stage figcaption b { color: var(--ink); font-weight: 500; display: block; }
.stages { --gap: clamp(8px, 2vw, 28px); }
.seg { position: relative; height: 16px; margin-top: 14px; width: calc(100% + var(--gap)); }
.stage:last-child .seg { width: 100%; }
.seg::before { /* pipe */
  content: ""; position: absolute; left: 0; right: 0; top: 6px; height: 4px; background: var(--navy);
  transform-origin: left center; animation: draw .9s cubic-bezier(.2, .7, .2, 1) both;
}
.stage:nth-child(1) .seg::before { animation-delay: .25s; }
.stage:nth-child(2) .seg::before { animation-delay: .6s; }
.stage:nth-child(3) .seg::before { animation-delay: .95s; }
.seg::after { /* moving air */
  content: ""; position: absolute; left: 0; right: 0; top: 7.5px; height: 1px;
  background: repeating-linear-gradient(90deg, #fff 0 10px, transparent 10px 22px);
  animation: flow 1.1s linear infinite, fadein .4s 1.6s both;
}
.arrow { position: absolute; right: -2px; top: 0; border-left: 14px solid var(--navy); border-top: 8px solid transparent; border-bottom: 8px solid transparent; }
.seg-label { position: absolute; top: -20px; left: 0; font: 500 11px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); white-space: nowrap; }
.seg-label.out { left: auto; right: 0; }
.airline-foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: baseline; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.airline-foot span { color: var(--ink-2); font-size: 14px; }

@keyframes draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes flow { to { background-position: 22px 0; } }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.stage { animation: rise .7s both cubic-bezier(.2, .7, .2, 1); }
.stage:nth-child(1) { animation-delay: .05s; }
.stage:nth-child(2) { animation-delay: .35s; }
.stage:nth-child(3) { animation-delay: .65s; }
.hero-top > * { animation: rise .7s both cubic-bezier(.2, .7, .2, 1); }
.hero-top > *:nth-child(2) { animation-delay: .5s; }

@media (max-width: 760px) {
  .hero-top { grid-template-columns: 1fr; }
  .stages { grid-template-columns: 1fr; gap: 0; }
  .stage { display: grid; grid-template-columns: 112px 1fr; grid-template-areas: "img word" "img cap"; align-items: center; column-gap: 16px; padding-block: 14px; border-top: 1px solid var(--line); }
  .stage-img { grid-area: img; margin: 0; height: 150px; }
  .stage-word { grid-area: word; align-self: end; font-size: 52px; }
  .stage-no { display: none; }
  .stage figcaption { grid-area: cap; align-self: start; }
  .seg { display: none; }
}

/* ---------- stats strip ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); margin-top: clamp(32px, 5vw, 56px); }
.stat { padding: 18px 18px 18px 0; border-right: 1px solid var(--line); padding-left: 18px; }
.stat:first-child { padding-left: 0; }
.stat:last-child { border-right: 0; }
.stat b { display: block; font: 800 clamp(34px, 4vw, 48px)/1 var(--f-display); color: var(--navy); }
.stat b small { font-size: .5em; font-weight: 700; letter-spacing: .02em; margin-left: 3px; }
.stat span { font: 500 11.5px/1.3 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
@media (max-width: 640px) { .stat { border-right: 0; border-bottom: 1px solid var(--line); padding-left: 0; } }

/* ---------- photo plate ---------- */
.plate {
  position: relative; background-color: var(--plate); aspect-ratio: 4 / 5; display: grid; place-items: center; overflow: hidden;
  background-image:
    linear-gradient(to right, rgba(11, 61, 117, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 61, 117, .06) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: center;
  border-bottom: 1px solid var(--line);
}
.plate img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; padding: 6%; transition: transform .35s cubic-bezier(.2, .7, .2, 1); }
.plate.ph { color: var(--ink-3); }
.plate .ph-in { display: grid; justify-items: center; gap: 10px; text-align: center; }
.plate .ph-in svg { width: 46%; max-width: 160px; height: auto; color: var(--ink-3); }
.plate .ph-in span { font: 500 11px/1.2 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; }
.tag {
  position: absolute; left: 10px; top: 10px; font: 500 11px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase;
  background: var(--surface); color: var(--navy); border: 1px solid var(--line); padding: 5px 7px; border-radius: 2px; z-index: 2;
}
.tag.finish { left: auto; right: 10px; color: var(--ink); }

/* ---------- range tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.tile { background: var(--surface); border: 1px solid var(--line); text-decoration: none; display: flex; flex-direction: column; transition: border-color .15s, transform .2s; }
.tile:hover { border-color: var(--navy); transform: translateY(-3px); }
.tile:hover .plate img { transform: scale(1.05); }
.tile .plate { aspect-ratio: 5 / 4; }
.tile-body { padding: 14px 16px 16px; display: grid; gap: 8px; }
.tile-body h3 { font: 800 28px/1 var(--f-display); text-transform: uppercase; letter-spacing: .01em; }
.tile-body p { color: var(--ink-2); font-size: 14px; line-height: 1.45; }
.facts { display: flex; flex-wrap: wrap; gap: 6px 14px; font: 500 12px/1.3 var(--f-mono); color: var(--ink-2); border-top: 1px dashed var(--line); padding-top: 9px; }
.facts b { color: var(--ink); font-weight: 500; }
@media (max-width: 1020px) { .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .tiles { grid-template-columns: 1fr; } }

/* ---------- chart ---------- */
.chart { background: var(--surface); border: 1px solid var(--line); padding: 22px clamp(14px, 3vw, 28px) 18px; }
.chart-cols { display: grid; grid-template-columns: minmax(120px, 190px) minmax(0, 1fr) minmax(0, .5fr); gap: 0 clamp(12px, 2.5vw, 28px); align-items: center; }
.chart-h { font: 500 11px/1.2 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); padding-bottom: 10px; }
.crow { display: contents; text-decoration: none; }
.crow > * { padding-block: 9px; border-top: 1px solid var(--tint); }
.crow:hover > * { background: color-mix(in srgb, var(--tint) 55%, transparent); }
.clabel { font-weight: 600; font-size: 14.5px; line-height: 1.2; }
.clabel small { display: block; font: 400 11.5px/1.3 var(--f-mono); color: var(--ink-3); margin-top: 2px; }
.ctrack { position: relative; height: 30px; margin-block: 0; background:
  repeating-linear-gradient(90deg, var(--tint) 0 1px, transparent 1px calc(100% / var(--ticks, 5))); }
.cbar { position: absolute; top: 9px; height: 12px; background: var(--navy); border-radius: 1px; }
.cbar.dot { width: 12px !important; border-radius: 50%; margin-left: -6px; background: var(--green); }
.cval { position: absolute; top: 5px; font: 500 12px/20px var(--f-mono); color: var(--ink); white-space: nowrap; }
.cnone { font: 400 12px/30px var(--f-mono); color: var(--ink-3); }
.axis { position: relative; height: 18px; font: 400 11px/18px var(--f-mono); color: var(--ink-3); }
.axis i { position: absolute; transform: translateX(-50%); font-style: normal; }
.axis i:first-child { transform: none; }
.axis i:last-child { transform: translateX(-100%); }
.chart-note { font: 400 12px/1.4 var(--f-mono); color: var(--ink-3); margin-top: 14px; }
@media (max-width: 640px) {
  .chart-cols { grid-template-columns: minmax(90px, 120px) minmax(0, 1fr); }
  .chart-cols .pcol, .chart-cols .chart-h.pcol { display: none; }
}

/* ---------- selector ---------- */
.selector { background: var(--navy-deep); color: #fff; padding: clamp(24px, 4vw, 44px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(24px, 4vw, 56px); }
.selector h2 { font: 800 clamp(34px, 4.4vw, 52px)/.95 var(--f-display); text-transform: uppercase; }
.selector p { color: #c3d3e6; margin-top: 12px; max-width: 40ch; }
.sel-ctl { display: grid; gap: 22px; align-content: start; }
.sel-ctl label, .sel-lbl { font: 500 11.5px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: #9fb8d4; display: block; margin-bottom: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); padding: 8px 13px; border-radius: 2px;
  font: 500 14px/1 var(--f-mono); cursor: pointer; transition: background .12s, color .12s, border-color .12s;
}
.chip:hover { border-color: var(--navy); }
.chip[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }
.selector .chip { background: transparent; color: #fff; border-color: #4a6a92; }
.selector .chip:hover { border-color: #fff; }
.selector .chip[aria-pressed="true"] { background: #fff; color: var(--navy-deep); border-color: #fff; }
input[type=range] { width: 100%; accent-color: var(--green); height: 28px; }
.selector input[type=range] { accent-color: #7fd18d; }
.sel-out { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid #36557f; padding-top: 18px; }
.sel-out b { font: 800 44px/1 var(--f-display); }
.sel-out span { color: #c3d3e6; font-size: 14px; }
.sel-out .btn { border-color: #fff; color: #fff; }
.sel-out .btn:hover { background: #fff; color: var(--navy-deep); }
.sel-readout { font: 500 14px/1 var(--f-mono); color: #fff; float: right; }
@media (max-width: 860px) { .selector { grid-template-columns: 1fr; } }

/* ---------- about strip ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); }
.about-grid p + p { margin-top: 14px; }
.about-grid p { color: var(--ink-2); max-width: 62ch; }
.lines { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--ink); }
.lines li { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--line); font-weight: 600; }
.lines li span { font: 500 11.5px/1.6 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); white-space: nowrap; }
.lines li.live { position: relative; padding-left: 18px; }
.lines li.live span { color: var(--green-deep); }
.lines li.live::before { content: ""; position: absolute; left: 0; top: 50%; width: 9px; height: 9px; margin-top: -4px; border-radius: 50%; background: var(--green); }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------- catalogue ---------- */
.page-head { padding-top: clamp(28px, 4vw, 52px); }
.page-head h1 { font: 800 clamp(44px, 7vw, 92px)/.9 var(--f-display); text-transform: uppercase; }
.page-head p { color: var(--ink-2); max-width: 60ch; margin-top: 12px; }
.crumbs { font: 500 12px/1.2 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--navy); }
.crumbs span { margin: 0 6px; }

.cat-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(20px, 3vw, 40px); align-items: start; margin-top: 28px; padding-bottom: 80px; }
.filters { position: sticky; top: 84px; display: grid; gap: 22px; }
.filters details > summary { display: none; }
.f-block h3 { font: 500 11.5px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 10px; }
.f-search { width: 100%; padding: 11px 12px; border: 1.5px solid var(--line); background: var(--surface); border-radius: 2px; font-family: var(--f-mono); font-size: 14px; }
.f-search:focus { border-color: var(--navy); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 30%, transparent); }
.f-list { display: grid; gap: 2px; }
.f-opt { display: flex; justify-content: space-between; gap: 8px; padding: 7px 10px; border: 1px solid transparent; background: none; text-align: left; cursor: pointer; border-radius: 2px; font-size: 14.5px; font-weight: 500; }
.f-opt:hover { background: var(--tint); }
.f-opt[aria-pressed="true"] { background: var(--surface); border-color: var(--navy); color: var(--navy); font-weight: 700; }
.f-opt span { font: 400 12px/1.6 var(--f-mono); color: var(--ink-3); }
.f-flow { font: 500 13px/1 var(--f-mono); display: flex; justify-content: space-between; margin-bottom: 4px; }
.f-note { font: 400 11.5px/1.4 var(--f-mono); color: var(--ink-3); margin-top: 4px; }
.res-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid var(--ink); }
.res-head b { font: 800 30px/1 var(--f-display); }
.res-head span { font: 500 12px/1.2 var(--f-mono); color: var(--ink-2); letter-spacing: .06em; text-transform: uppercase; }
.reset { background: none; border: 0; text-decoration: underline; cursor: pointer; font-size: 13px; padding: 0; color: var(--navy); font-weight: 600; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(236px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); text-decoration: none; display: flex; flex-direction: column; transition: border-color .15s, transform .2s; }
.card:hover { border-color: var(--navy); transform: translateY(-3px); }
.card:hover .plate img { transform: scale(1.05); }
.card-body { padding: 13px 15px 15px; display: grid; gap: 6px; flex: 1; align-content: start; }
.card-code { font: 500 12px/1.3 var(--f-mono); color: var(--ink-2); letter-spacing: .02em; word-break: break-word; }
.card-name { font: 700 19px/1.15 var(--f-body); }
.card .facts { margin-top: auto; }
.empty { padding: 48px 20px; text-align: center; border: 1px dashed var(--line); color: var(--ink-2); }

@media (max-width: 900px) {
  .cat-layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .filters details { border: 1px solid var(--line); background: var(--surface); }
  .filters details > summary { display: flex; justify-content: space-between; padding: 12px 14px; font-weight: 700; cursor: pointer; list-style: none; }
  .filters details[open] > summary { border-bottom: 1px solid var(--line); }
  .filters .f-inner { padding: 14px; display: grid; gap: 20px; }
}
@media (min-width: 901px) { .filters .f-inner { display: grid; gap: 22px; } }

/* ---------- series page ---------- */
.series-head { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(20px, 4vw, 56px); align-items: end; }
.series-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--ink); }
.series-stats div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.series-stats div:nth-child(odd) { padding-right: 16px; }
.series-stats b { display: block; font: 800 28px/1 var(--f-display); color: var(--navy); }
.series-stats span { font: 500 11px/1.3 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
@media (max-width: 800px) { .series-head { grid-template-columns: 1fr; } }

/* ---------- product page ---------- */
.prod { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4.5vw, 64px); margin-top: 22px; align-items: start; }
.gallery { position: sticky; top: 84px; }
.gallery .plate { aspect-ratio: 1 / 1.08; border: 1px solid var(--line); }
.gallery .plate img { padding: 7%; }
.prod-wrap { padding-top: 28px; }
.thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; }
.thumb { flex: none; width: 74px; border: 1.5px solid var(--line); background: var(--plate); padding: 0; cursor: pointer; border-radius: 2px; }
.thumb img { mix-blend-mode: multiply; aspect-ratio: 1; object-fit: contain; padding: 4px; }
.thumb[aria-current="true"] { border-color: var(--navy); }
.cap { font: 500 12px/1.3 var(--f-mono); color: var(--ink-2); margin-top: 10px; letter-spacing: .03em; min-height: 1.3em; }
.info h1 { font: 800 clamp(36px, 4.6vw, 58px)/.95 var(--f-display); text-transform: uppercase; margin-top: 8px; }
.info .codes { font: 500 15px/1.4 var(--f-mono); color: var(--navy); margin-top: 10px; }
.info .lead { color: var(--ink-2); margin-top: 14px; max-width: 52ch; font-size: 17px; }
.note-badge { display: inline-block; margin-top: 14px; font: 500 12px/1.4 var(--f-mono); background: var(--tint); padding: 6px 10px; border-radius: 2px; }
.figs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 24px; border-top: 1px solid var(--ink); }
.fig { padding: 13px 12px 13px 0; border-bottom: 1px solid var(--line); }
.fig:nth-child(even) { padding-left: 14px; border-left: 1px solid var(--line); }
.fig span { font: 500 11px/1.2 var(--f-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--ink-2); display: block; }
.fig b { display: block; font: 800 26px/1.1 var(--f-display); margin-top: 5px; color: var(--ink); }
.fig b small { font: 500 12px var(--f-mono); color: var(--ink-2); margin-left: 3px; letter-spacing: 0; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
@media (max-width: 860px) { .prod { grid-template-columns: 1fr; } .gallery { position: static; } }

.models { margin-top: clamp(40px, 6vw, 72px); }
.models h2, .specs-sec h2, .related h2 { font: 800 clamp(30px, 3.6vw, 42px)/1 var(--f-display); text-transform: uppercase; }
.mtable { margin-top: 18px; background: var(--surface); border: 1px solid var(--line); overflow-x: auto; }
.mrow { display: grid; grid-template-columns: minmax(150px, 1.3fr) minmax(90px, .8fr) minmax(170px, 1.7fr) minmax(170px, 1.7fr) 78px 112px; gap: 0 18px; align-items: center; padding: 11px 16px; border-top: 1px solid var(--tint); min-width: 820px; cursor: pointer; }
.mrow.mh { cursor: default; background: var(--surface-2, #f1f4f2); font: 500 11px/1.2 var(--f-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--ink-2); border-top: 0; }
.mrow:not(.mh):hover { background: color-mix(in srgb, var(--tint) 45%, transparent); }
.mrow.sel { background: color-mix(in srgb, var(--green) 10%, var(--surface)); box-shadow: inset 3px 0 0 var(--green); }
.mrow .m-code { font: 600 14px/1.25 var(--f-mono); }
.mrow .m-code small { display: block; font: 400 11px var(--f-mono); color: var(--ink-3); margin-top: 2px; }
.mrow .m-ports { font: 400 13px/1.3 var(--f-mono); color: var(--ink-2); }
.mrow .m-w { font: 400 13px var(--f-mono); color: var(--ink-2); }
.pcell { display: flex; align-items: center; gap: 10px; }
.pcell .pv { font: 500 12px/1 var(--f-mono); white-space: nowrap; min-width: 66px; }
.pcell .bar2 { flex: 1; }
.bar2 { position: relative; height: 22px; background: repeating-linear-gradient(90deg, var(--tint) 0 1px, transparent 1px 20%); }
.bar2 i { position: absolute; top: 5px; height: 12px; background: var(--navy); }
.bar2 i.win { background: var(--green); }
.bar2 em { position: absolute; top: 0; height: 22px; width: 2px; background: var(--ink); }
.bar2 b { position: absolute; top: 2px; font: 500 12px/18px var(--f-mono); white-space: nowrap; }
.bar-na { font: 400 12px var(--f-mono); color: var(--ink-3); }
.enq-add { justify-self: end; }
.enq-add.in { background: var(--navy); border-color: var(--navy); color: #fff; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 20px; font: 400 12px/1.4 var(--f-mono); color: var(--ink-3); margin-top: 10px; }
.legend i { display: inline-block; width: 12px; height: 8px; margin-right: 6px; vertical-align: 0; }

.specs-sec { margin-top: clamp(40px, 6vw, 72px); }
.sptable { margin-top: 18px; overflow-x: auto; background: var(--surface); border: 1px solid var(--line); }
.sptable table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 14px; }
.sptable th, .sptable td { padding: 9px 14px; text-align: left; border-top: 1px solid var(--tint); white-space: nowrap; font-variant-numeric: tabular-nums; }
.sptable thead th { font: 600 12.5px/1.2 var(--f-mono); background: #f1f4f2; border-top: 0; position: sticky; top: 0; }
.sptable tbody th { font-weight: 600; color: var(--ink-2); position: sticky; left: 0; background: var(--surface); font-size: 13.5px; border-right: 1px solid var(--tint); }
.sptable thead th:first-child { left: 0; z-index: 2; }
.sptable tr:hover td, .sptable tr:hover th { background: #f6f8f7; }

.related { margin-top: clamp(40px, 6vw, 72px); padding-bottom: 80px; }
.related .grid { margin-top: 18px; }

/* ---------- quote ---------- */
.quote-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); margin-top: 28px; padding-bottom: 90px; align-items: start; }
.panel { background: var(--surface); border: 1px solid var(--line); padding: clamp(18px, 3vw, 30px); }
.panel h2 { font: 800 28px/1 var(--f-display); text-transform: uppercase; margin-bottom: 18px; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fld { display: grid; gap: 6px; }
.fld.full { grid-column: 1 / -1; }
.fld label { font: 500 11.5px/1 var(--f-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--ink-2); }
.fld input, .fld select, .fld textarea { border: 1.5px solid var(--line); border-radius: 2px; padding: 11px 12px; background: var(--paper); width: 100%; }
.fld textarea { min-height: 120px; resize: vertical; }
.fld input:focus, .fld select:focus, .fld textarea:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 30%, transparent); background: #fff; }
.enq-list { list-style: none; margin: 0; padding: 0; display: grid; }
.enq-item { display: grid; grid-template-columns: minmax(0, 1fr) 78px auto; gap: 12px; align-items: center; padding: 12px 0; border-top: 1px solid var(--tint); }
.enq-item:first-child { border-top: 1px solid var(--ink); }
.enq-item b { font: 600 14px var(--f-mono); display: block; }
.enq-item small { color: var(--ink-3); font-size: 13px; }
.enq-item input { width: 100%; padding: 8px; border: 1.5px solid var(--line); border-radius: 2px; font-family: var(--f-mono); }
.x-btn { background: none; border: 0; cursor: pointer; color: var(--ink-3); font-size: 22px; line-height: 1; padding: 4px 8px; }
.x-btn:hover { color: var(--ink); }
.demo-note { margin-top: 16px; font: 400 12.5px/1.5 var(--f-mono); color: var(--ink-2); background: var(--tint); padding: 10px 12px; border-radius: 2px; }
.sent { border-left: 4px solid var(--green); }
.contact-card { margin-top: 24px; }
.contact-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; font-size: 14.5px; }
.contact-card dt { font: 500 11.5px/1.8 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.contact-card dd { margin: 0; }
@media (max-width: 860px) { .quote-grid { grid-template-columns: 1fr; } .fields { grid-template-columns: 1fr; } }

/* ---------- partner factory ---------- */
.partner { margin-top: 28px; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--navy); max-width: 62ch; }
.partner b { display: block; margin-top: 6px; font-size: 17px; }
.partner p { margin-top: 4px; font-size: 14px; color: var(--ink-2); }

/* ---------- footer ---------- */
.site-foot { background: var(--navy-deep); color: #c3d3e6; margin-top: 40px; padding-top: 48px; }
.foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.3fr; gap: 32px; }
.site-foot h3 { font: 500 11.5px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: #8aa6c6; margin-bottom: 12px; }
.site-foot p, .site-foot li { font-size: 14px; line-height: 1.6; }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot a { text-decoration: none; }
.site-foot a:hover { color: #fff; text-decoration: underline; }
.foot-brand { font: 600 22px/1 var(--f-body); color: #fff; margin-bottom: 12px; }
.foot-brand .brand-word { color: #fff; font-size: 30px; }
.foot-base { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 40px; padding-block: 18px; border-top: 1px solid #1f4272; font: 400 12px/1.4 var(--f-mono); color: #8aa6c6; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .foot-grid { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}