/* ============================================================
   AeroGround Parts — GSE parts catalog template
   Design language: enterprise light/dark duality
   (light informational sections, dark hero & visual-search)
   System font stack only — zero third-party requests.
   ============================================================ */

:root{
  /* palette */
  --bg:#ffffff;
  --bg-alt:#f6f7f8;
  --ink:#111318;
  --ink-2:#3b3d45;
  --ink-3:#656a76;
  --line:#e3e5e8;
  --line-2:#d5d7db;
  --accent:#1868f2;
  --accent-strong:#0f4fc4;
  --accent-ink:#0d3c96;
  --accent-soft:#eef3fe;
  --sky:#dceafd;
  --sky-2:#eef4fe;
  --sky-line:#c9dcf8;
  --dark:#12294e;
  --dark-2:#0d1d3a;
  --dark-line:rgba(255,255,255,.16);
  --dark-ink:#eef3fb;
  --dark-ink-2:#b9c8e2;
  --ok:#0d7a43;
  --ok-soft:#e5f4ec;
  --warn:#9a6700;
  --warn-soft:#fdf3d8;
  --danger:#b3261e;
  --danger-soft:#fdecea;
  --rfq:#6b2fa0;
  --rfq-soft:#f3ebfb;

  /* type */
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang HK","Microsoft JhengHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;

  /* rhythm */
  --wrap:1160px;
  --r-sm:4px; --r:6px; --r-md:8px;
  --shadow:rgba(97,104,117,.05) 0 1px 1px,rgba(97,104,117,.05) 0 2px 2px;
  --shadow-up:rgba(15,20,30,.14) 0 10px 34px,rgba(15,20,30,.08) 0 2px 8px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.62;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
button{font:inherit;color:inherit}
a{color:var(--accent-ink)}

/* ---------- layout helpers ---------- */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.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:-999px;top:0;background:var(--ink);color:#fff;padding:8px 14px;z-index:200}
.skip:focus{left:12px;top:12px}
.noscript{margin:0;padding:14px 24px;background:var(--warn-soft);color:var(--warn);font-weight:600}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* ---------- typography ---------- */
.kicker{
  font-size:13px;font-weight:600;letter-spacing:1.3px;
  text-transform:uppercase;color:var(--ink-3);margin:0 0 10px;
}
/* honeypot field: humans never see it */
.f-honey{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}
.kicker-dark{color:#8a93a3}
.h2{font-size:clamp(30px,4vw,42px);font-weight:700;line-height:1.18;letter-spacing:-.4px;margin:0 0 12px}
.h2-dark{color:var(--dark-ink)}
.h3{font-size:20px;font-weight:700;line-height:1.25;margin:0 0 10px}
.h3-dark{color:var(--dark-ink)}
.section{padding:72px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:linear-gradient(180deg,var(--sky-2) 0%,var(--sky) 100%);color:var(--ink)}
.section-sub{font-size:17px;color:var(--ink-3);max-width:640px;margin:0 0 36px}
.sub-dark{color:var(--dark-ink-2)}

/* ---------- buttons & controls ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--ink);color:#fff;border:1px solid var(--ink);
  padding:10px 18px;border-radius:var(--r);font-weight:600;font-size:15px;
  cursor:pointer;text-decoration:none;box-shadow:var(--shadow);
  transition:background .15s,border-color .15s,transform .05s;
}
.btn:hover{background:#000;border-color:#000}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);border-color:var(--accent)}
.btn-accent:hover{background:var(--accent-strong);border-color:var(--accent-strong)}
.btn-sm{padding:7px 12px;font-size:13.5px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.link-btn{
  background:none;border:none;padding:0;color:var(--accent-ink);
  cursor:pointer;font-size:13.5px;font-weight:600;text-decoration:underline;
  text-underline-offset:3px;
}
.link-btn:hover{color:var(--accent)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border:1px solid var(--line-2);border-radius:var(--r);
  background:#fff;cursor:pointer;color:var(--ink-2);flex:none;
}
.icon-btn:hover{border-color:var(--ink-3);color:var(--ink)}
.select,.filters input[type=search],.toolbar input[type=search],.model-tools input,.field input,.field textarea,.drawer textarea{
  font:inherit;font-size:14.5px;color:var(--ink);
  background:#fff;border:1px solid var(--line-2);border-radius:var(--r);
  padding:9px 11px;width:100%;
}
.select{appearance:none;padding-right:30px;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23656a76' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 10px center;background-size:12px;
}
.select:focus,.select:hover,input[type=search]:focus,textarea:focus,input:not([type=checkbox]):focus{border-color:var(--accent)}
.select-sm{width:auto;padding:7px 30px 7px 10px;font-size:13.5px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.header-in{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.brand-mark{color:var(--accent)}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.2px}
.nav{display:flex;gap:22px;margin-left:auto}
.nav a{
  color:var(--ink-2);text-decoration:none;font-size:14.5px;font-weight:500;
  padding:6px 2px;border-bottom:2px solid transparent;
}
.nav a:hover{color:var(--ink);border-bottom-color:var(--accent)}
.header-actions{display:flex;align-items:center;gap:14px;flex:none}
.lang{display:flex;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden}
.lang-btn{
  border:none;background:#fff;padding:6px 10px;font-size:12.5px;font-weight:600;
  cursor:pointer;color:var(--ink-3);
}
.lang-btn.is-active{background:var(--ink);color:#fff}
.badge{
  background:#fff;color:var(--accent-ink);border-radius:99px;
  font-size:11.5px;font-weight:700;padding:1px 7px;margin-left:2px;
}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:none;padding:8px;cursor:pointer}
.burger span{width:20px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- hero ---------- */
.hero{
  color:var(--dark-ink);
  padding:76px 0 84px;
  background:
    radial-gradient(1100px 460px at 85% -10%, #ffffff 0%, rgba(255,255,255,0) 55%),
    radial-gradient(900px 500px at -10% 110%, #6ea8ff 0%, rgba(110,168,255,0) 60%),
    linear-gradient(168deg, #2f6bd8 0%, #1c4fb6 58%, #16418f 100%);
}
.hero-in{max-width:780px}
.hero-title{
  font-size:clamp(36px,6vw,62px);font-weight:800;line-height:1.12;
  letter-spacing:-1px;margin:0 0 16px;font-feature-settings:"kern";color:#fff;
}
.hero-sub{font-size:18px;line-height:1.6;color:#d3e0f7;margin:0 0 32px;max-width:620px}

.searchbox{background:rgba(255,255,255,.97);border:1px solid var(--sky-line);border-radius:var(--r-md);padding:16px;box-shadow:0 18px 44px rgba(13,29,58,.25)}
.seg{display:inline-flex;background:#e7eefb;border-radius:var(--r);padding:3px;margin-bottom:12px}
.seg-btn{
  border:none;background:transparent;color:#44557c;
  padding:6px 14px;font-size:13px;font-weight:600;border-radius:var(--r-sm);cursor:pointer;
}
.seg-btn.is-active{background:#fff;color:var(--accent-ink);box-shadow:0 1px 3px rgba(13,29,58,.18)}
.search-row{display:flex;align-items:center;gap:10px;position:relative}
.search-ico{color:#7d93bd;flex:none}
.search-row input{
  flex:1;background:transparent;border:none;color:#16233d;
  font:inherit;font-size:16.5px;padding:10px 0;outline:none;min-width:0;
}
.search-row input::placeholder{color:#8598bd}
.hero-hint{margin:12px 0 0;font-size:13px;color:#5e7099;display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.suggest{
  position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:60;
  list-style:none;margin:0;padding:6px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-up);color:var(--ink);
}

/* ---------- finder / xref modes ---------- */
.mode-panel{margin-top:4px}
.seg-sub{margin-bottom:10px}
.finder-row{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:12px;align-items:end}
.finder-field{min-width:0}
.finder-field .select{background-color:var(--dark-2);border-color:var(--dark-line);color:var(--dark-ink)}
.finder-field .flabel{color:#8a93a3}
.finder-go{height:42px}
.xref-result{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.xref-row{
  display:grid;grid-template-columns:1fr auto 1fr auto;gap:14px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;color:var(--ink);box-shadow:var(--shadow);
}
.xref-oem{font-family:var(--mono);font-size:14px;font-weight:700;margin:0}
.xref-oem-sub{font-size:12px;color:var(--ink-3);margin:2px 0 0}
.xref-arrow{color:var(--accent);flex:none}
.xref-ours{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--accent-ink);margin:0}
.xref-our-sub{font-size:12px;color:var(--ink-3);margin:2px 0 0}
.xref-none{
  background:#fff;border:1px dashed var(--line-2);border-radius:var(--r-md);
  padding:16px;font-size:14px;color:var(--ink-2);
}
.xref-none strong{color:var(--ink)}

/* ---------- featured / brands ---------- */
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.sec-head .h2{margin-bottom:0}
.brands-band{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:44px 0}
.brands-t{font-size:15px;font-weight:700;text-align:center;margin:0 0 22px;color:var(--ink-2)}
.brand-wall{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:820px;margin:0 auto}
.brand-chip{
  background:#fff;border:1px solid var(--line-2);border-radius:var(--r);
  padding:10px 18px;font-size:14px;font-weight:700;color:var(--ink-2);cursor:pointer;
  letter-spacing:.2px;transition:border-color .15s,color .15s;
}
.brand-chip:hover{border-color:var(--accent);color:var(--accent-ink)}
.brands-sub{font-size:12.5px;color:var(--ink-3);text-align:center;margin:18px 0 0}
.section-tight{padding-bottom:40px}
.sug{
  display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;
  width:100%;background:none;border:none;text-align:left;padding:8px 10px;
  border-radius:var(--r-sm);cursor:pointer;
}
.sug:hover,.sug:focus-visible{background:var(--accent-soft)}
.sug-kind{
  font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;
  color:var(--accent-ink);background:var(--accent-soft);border-radius:3px;padding:2px 6px;
}
.sug-label{font-weight:600;font-size:14.5px}
.sug-sub{font-size:12.5px;color:var(--ink-3)}

/* ---------- chips ---------- */
.chip{
  display:inline-block;background:#fff;border:1px solid var(--sky-line);
  color:var(--accent-ink);border-radius:99px;padding:5px 14px;font-size:13px;font-weight:500;
  cursor:pointer;text-decoration:none;
}
.chip:hover{border-color:var(--accent)}
.chip-mini{background:transparent;font-size:12.5px;padding:3px 11px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.chip-light{
  background:#fff;color:var(--ink-2);border:1px solid var(--line-2);
  border-radius:99px;padding:7px 16px;font-size:13.5px;font-weight:600;cursor:pointer;
}
.chip-light:hover{border-color:var(--ink-3)}
.chip-light.is-active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- stats band ---------- */
.stats-band{background:linear-gradient(120deg,#1c4fb6,#2f6bd8);color:#fff;padding:34px 0;box-shadow:0 8px 24px rgba(13,29,58,.18)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{display:flex;flex-direction:column;gap:2px}
.stat-n{font-size:30px;font-weight:800;letter-spacing:-.5px;line-height:1.1;color:#fff}
.stat-l{font-size:13.5px;color:#cddcf8}

/* ---------- equipment categories ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.cat-card{
  display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;text-decoration:none;color:var(--ink);
  box-shadow:var(--shadow);transition:border-color .15s,transform .15s;
}
.cat-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.cat-ico{color:var(--accent);margin-bottom:6px;height:60px;display:flex;align-items:center}
.cat-t{font-size:17px;font-weight:700;margin:0;line-height:1.3}
.cat-meta{font-size:13px;color:var(--ink-3);margin:0}
.cat-link{margin-top:10px;font-size:13.5px;font-weight:600;color:var(--accent-ink)}

/* ---------- models ---------- */
.model-tools{margin-bottom:18px;max-width:380px}
.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.model-card{
  display:flex;flex-direction:column;gap:3px;align-items:flex-start;text-align:left;min-width:0;max-width:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;cursor:pointer;box-shadow:var(--shadow);
  transition:border-color .15s,transform .15s;
}
.model-card *{min-width:0;overflow-wrap:break-word}
.model-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.model-card.is-active{border-color:var(--accent);background:var(--accent-soft)}
.model-oem{font-size:11.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--accent-ink)}
.model-name{font-size:16.5px;font-weight:700;line-height:1.25}
.model-type{font-size:13px;color:var(--ink-3)}
.model-meta{font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* header: burger breakpoint earlier so actions never overflow */
@media (max-width:920px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-up)}
  .nav.is-open{display:flex}
  .nav a{padding:12px 0;border-bottom:none;font-size:16px}
  .burger{display:flex}
}
@media (max-width:920px) and (min-width:761px){
  .header-in{gap:14px}
  .brand-name{display:none}
}

/* ---------- catalog ---------- */
.catalog{display:grid;grid-template-columns:250px 1fr;gap:28px;align-items:start}
.filters{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--shadow);position:sticky;top:84px;
}
.filters-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.filters-head .h3{margin:0;font-size:16px}
.fgroup{margin-bottom:14px}
.flabel{display:block;font-size:12.5px;font-weight:600;color:var(--ink-3);margin-bottom:5px;text-transform:uppercase;letter-spacing:.5px}
.fcheck{display:flex;align-items:center;gap:8px}
.fcheck label{font-size:14px;font-weight:500;cursor:pointer}
.fcheck input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}

.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.toolbar input[type=search]{flex:1;min-width:200px}
.toolbar-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.count{font-size:13px;color:var(--ink-3);white-space:nowrap}

.model-banner{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  background:var(--accent-soft);border:1px solid #c9dbfc;border-radius:var(--r);
  padding:9px 14px;font-size:13.5px;font-weight:600;color:var(--accent-ink);margin-bottom:14px;
}

.part-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(252px,1fr));gap:16px}
.part-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);position:relative;
}
.part-media{
  height:132px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,#f2f5fa,#e9eef6);color:var(--accent);position:relative;
}
.part-media svg{opacity:.9}
.part-media.has-photo{padding:0}
.part-photo{
  width:100%;height:100%;object-fit:cover;display:block;
  background:#fff;
}
@media (prefers-reduced-motion: no-preference){
  .part-photo{transition:transform .25s ease}
  .part-card:hover .part-photo{transform:scale(1.04)}
}
.part-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1;min-width:0}
.part-body>*{min-width:0}
.part-pn{
  font-family:var(--mono);font-size:12px;color:var(--ink-3);margin:0;
  letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.part-name{font-size:15.5px;font-weight:700;line-height:1.3;margin:0;overflow-wrap:break-word}
.part-fit{font-size:12.5px;color:var(--ink-3);margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.fit-label{font-weight:600}
.part-tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:11px;font-weight:600;padding:2px 8px;border-radius:3px;text-transform:uppercase;letter-spacing:.4px}
.tag-cond-new{background:var(--ok-soft);color:var(--ok)}
.tag-cond-svc{background:var(--warn-soft);color:var(--warn)}
.tag-cond-oh{background:var(--accent-soft);color:var(--accent-ink)}
.tag-cat{background:var(--bg-alt);color:var(--ink-3)}
.part-foot{display:flex;justify-content:space-between;align-items:flex-end;gap:8px;margin-top:auto;padding-top:8px}
.part-price-wrap{display:flex;flex-direction:column;gap:2px}
.part-price{font-weight:700;font-size:15.5px}
.part-price.rfq{color:var(--rfq);font-size:13.5px;font-weight:600}
.stock{font-size:12px;font-weight:600}
.stock.in{color:var(--ok)}
.stock.low{color:var(--warn)}
.stock.out{color:var(--danger)}
.part-actions{display:flex;gap:6px;align-items:center}

.empty{
  text-align:center;padding:56px 20px;border:1px dashed var(--line-2);
  border-radius:var(--r-md);background:#fff;
}
.empty-title{font-size:18px;font-weight:700;margin:0 0 6px}
.empty-sub{font-size:14px;color:var(--ink-3);max-width:420px;margin:0 auto 16px}

/* ---------- visual search ---------- */
.visual-box{max-width:720px}
.dropzone{
  display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;
  border:2px dashed #a8c4ef;background:rgba(255,255,255,.75);border-radius:var(--r-md);
  padding:52px 24px;cursor:pointer;color:#5b7cb6;
  transition:border-color .15s,background .15s;
}
.dropzone:hover,.dropzone.is-drag,.dropzone:focus-visible{border-color:var(--accent);background:#fff;color:var(--accent-ink)}
.dz-text{margin:10px 0 0;font-size:16px;font-weight:600;color:var(--ink)}
.dz-sub{margin:0;font-size:12.5px;color:var(--ink-3)}

.vs-preview{display:grid;grid-template-columns:280px 1fr;gap:22px;margin-top:22px;align-items:start}
.vs-photo-wrap{position:relative;border:1px solid var(--sky-line);border-radius:var(--r-md);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
#vsPhoto{width:100%;height:220px;object-fit:cover}
.vs-demo-tag{
  position:absolute;bottom:8px;left:8px;background:rgba(18,41,78,.82);color:#a8c8ff;
  font-size:10.5px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;
  padding:3px 8px;border-radius:3px;
}
.vs-progress{padding-top:6px}
.vs-bar{height:6px;background:#d3e2f8;border-radius:99px;overflow:hidden;margin:8px 0 12px}
.vs-bar-fill{height:100%;width:0;background:var(--accent);border-radius:99px;transition:width .4s ease}
.vs-status{font-size:13.5px;color:var(--ink-2);margin:0 0 10px}
.vs-results{margin-top:30px}
.vs-results .part-card{background:#fff;border-color:var(--sky-line)}
.vs-results .part-media{background:linear-gradient(180deg,#f3f7ff,#e8f0fd)}
.vs-results .part-name,.vs-results .part-price{color:var(--ink)}
.vs-results .part-pn{color:var(--ink-3)}

.privacy-note{
  display:flex;gap:8px;align-items:flex-start;max-width:640px;margin-top:26px;
  font-size:12.5px;color:#4c639a;line-height:1.55;
}
.privacy-note svg{flex:none;margin-top:2px}
.match-badge{
  position:absolute;top:10px;left:10px;background:#123a7c;color:#9fd8ff;
  font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:99px;
  font-family:var(--mono);letter-spacing:.3px;
}

/* ---------- services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow)}
.svc-ico{
  width:42px;height:42px;border-radius:var(--r);background:var(--accent-soft);
  color:var(--accent-ink);display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.svc-t{font-size:16.5px;font-weight:700;margin:0 0 6px}
.svc-d{font-size:14px;color:var(--ink-3);margin:0}

/* ---------- certs ---------- */
.certs{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0}
.certs-in{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.certs-t{font-size:13px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--ink-3);margin:0}
.cert-list{display:flex;gap:10px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.cert{
  background:#fff;border:1px solid var(--line-2);border-radius:var(--r);
  padding:7px 14px;font-size:13px;font-weight:600;color:var(--ink-2);
}
.certs-sub{font-size:12px;color:var(--ink-3);margin:0;width:100%}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:start}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field input,.field textarea{resize:vertical}
.field-err{color:var(--danger);font-size:12.5px;margin:5px 0 0;min-height:1em}
.field.invalid input,.field.invalid textarea{border-color:var(--danger)}
.form-note{font-size:12.5px;color:var(--ink-3);margin:12px 0 0}
.form-ok{
  background:var(--ok-soft);border:1px solid #bfe4d0;border-radius:var(--r-md);
  padding:24px;color:#0b5d34;
}
.contact-info{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-md);padding:24px}
.info-list{margin:0}
.info-list>div{padding:10px 0;border-bottom:1px solid var(--line)}
.info-list>div:last-child{border-bottom:none}
.info-list dt{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--ink-3);margin-bottom:2px}
.info-list dd{margin:0;font-size:14.5px;font-weight:500}

/* ---------- footer ---------- */
.footer{background:var(--dark-2);color:#b9c8e2;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand{color:#fff;font-size:17px;font-weight:700;margin:0 0 10px}
.footer-about{font-size:13.5px;line-height:1.7;margin:0;max-width:420px}
.footer-h{color:#fff;font-size:13px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;margin:0 0 12px}
.footer-nav{display:flex;flex-direction:column;gap:8px}
.footer-nav a{color:#b9c8e2;text-decoration:none;font-size:13.5px}
.footer-nav a:hover{color:#fff}
.footer-line{font-size:13.5px;margin:0 0 8px;color:#dce6f7}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:18px 24px;
  font-size:12.5px;color:#8fa3c7;max-width:var(--wrap);margin:0 auto;
}
.footer-demo{margin:0}

/* ---------- drawer (RFQ list) ---------- */
.scrim{position:fixed;inset:0;background:rgba(13,14,18,.55);z-index:150}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(420px,100vw);z-index:160;
  background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column;
  box-shadow:var(--shadow-up);
}
.drawer[aria-hidden="true"]{display:none}
.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-head .h3{margin:0}
.drawer-body{flex:1;overflow-y:auto;padding:16px 20px}
.cart-list{list-style:none;margin:0 0 16px;padding:0;display:flex;flex-direction:column;gap:12px}
.cart-row{display:flex;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:var(--r);padding:12px}
.cart-row-info{min-width:0}
.cart-pn{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);margin:0 0 2px}
.cart-nm{font-size:14px;font-weight:700;margin:0 0 2px;line-height:1.3}
.cart-pr{font-size:12.5px;color:var(--ink-3);margin:0}
.cart-row-ops{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex:none}
.qty{display:flex;align-items:center;gap:8px}
.qty-btn{
  width:24px;height:24px;border:1px solid var(--line-2);background:#fff;border-radius:var(--r-sm);
  cursor:pointer;font-size:15px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.qty-btn:hover{border-color:var(--ink-3)}
.qty-n{font-weight:700;font-size:14px;min-width:18px;text-align:center}
.cart-empty{font-size:14px;color:var(--ink-3);padding:28px 0;text-align:center;border:1px dashed var(--line-2);border-radius:var(--r-md)}
.cart-note-l{display:block;font-size:12.5px;font-weight:600;color:var(--ink-3);margin:6px 0 6px}
.drawer-foot{border-top:1px solid var(--line);padding:16px 20px;display:flex;flex-direction:column;gap:8px}
.cart-total{display:flex;justify-content:space-between;font-size:14px;margin:0;color:var(--ink-2)}
.cart-total strong{font-size:17px;color:var(--ink)}
.cart-rfq-note{font-size:11.5px;color:var(--ink-3);margin:0 0 6px}
.cart-ok{padding:20px;background:var(--ok-soft);color:#0b5d34;border-radius:var(--r-md);margin:16px 20px}

/* ---------- quick view ---------- */
.qv{border:none;border-radius:var(--r-md);padding:0;width:min(680px,92vw);box-shadow:var(--shadow-up)}
.qv::backdrop{background:rgba(13,14,18,.55)}
.qv-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}
.qv-pn{font-family:var(--mono);font-size:13px;color:var(--ink-3)}
.qv-body{display:grid;grid-template-columns:250px 1fr;gap:20px;padding:18px}
.qv-media{height:210px;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#f2f5fa,#e9eef6);color:var(--accent);border-radius:var(--r)}
.qv-media.has-photo{padding:0;overflow:hidden}
.qv-media .part-photo{object-fit:contain;height:100%;width:100%}
.qv-name{font-size:19px;font-weight:700;margin:0 0 8px;line-height:1.3}
.qv-line{display:flex;align-items:center;gap:12px;margin:0 0 14px}
.qv-price{font-size:18px;font-weight:700}
.qv-specs{width:100%;border-collapse:collapse;font-size:13.5px;margin:0 0 16px}
.qv-specs th{text-align:left;font-weight:600;color:var(--ink-3);padding:7px 0;border-bottom:1px solid var(--line);width:38%}
.qv-specs td{padding:7px 0;border-bottom:1px solid var(--line);font-weight:500}

/* ---------- toast ---------- */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(16px);
  background:var(--ink);color:#fff;padding:11px 20px;border-radius:var(--r);
  font-size:14px;font-weight:600;opacity:0;pointer-events:none;z-index:300;
  transition:opacity .2s,transform .2s;box-shadow:var(--shadow-up);max-width:90vw;text-align:center;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .catalog{grid-template-columns:1fr}
  .filters{position:static;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
  .filters-head{grid-column:1/-1;margin-bottom:0}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav{
    display:none;position:absolute;top:64px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--line);
  }
  .nav.is-open{display:flex}
  .nav a{padding:12px 0;border-bottom:none;font-size:16px}
  .burger{display:flex}
  .header-in{gap:14px}
  .brand-name{display:none}
  .hero{padding:52px 0 60px}
  .section{padding:52px 0}
  .search-row input{font-size:15.5px}
  .vs-preview{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .qv-body{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .finder-row{grid-template-columns:1fr;gap:10px}
  .xref-row{grid-template-columns:1fr;gap:8px;text-align:left}
  .xref-arrow{transform:rotate(90deg)}
}