/* ===================================================================
   DARSON CATALOG
   Tokens taken from the approved Darson company profile:
   navy 293785, yellow FFCB05, panel tints F4F5FA / EDEFF7 / E1E3EE,
   Montserrat throughout. Part numbers are set in IBM Plex Mono so
   digits align in tables and can never be misread — the one place
   this catalog spends its ink.
   =================================================================== */

:root{
  --navy:#293785;
  --navy-dk:#1c2760;
  --navy-ink:#141a3a;
  --yellow:#FFCB05;
  --panel:#F4F5FA;
  --panel-2:#EDEFF7;
  --line:#E1E3EE;
  --line-strong:#c9cde0;
  --white:#fff;
  --muted:#6b7089;
  --ok:#0f7b4f;
  --err:#b3261e;

  --sans:'Montserrat',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;

  --wrap:1280px;
  --r:3px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);font-size:15px;line-height:1.55;
  color:var(--navy-ink);background:var(--white);
}
img{max-width:100%;display:block}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0;font-weight:300;letter-spacing:-.01em}
table{border-collapse:collapse;width:100%}
button,input,select,textarea{font:inherit;color:inherit}

:focus-visible{outline:2px solid var(--navy);outline-offset:2px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--yellow);padding:8px 14px;z-index:99}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:48px 24px}
.muted,.note{color:var(--muted)}
.note{font-size:12px}
.empty{color:var(--muted);padding:24px 0}
.lede{color:var(--muted);max-width:70ch;margin:0 0 24px}
.fineprint{font-size:12px;color:var(--muted);margin-top:10px}

/* ---- part numbers: the signature ---------------------------------- */
.code{
  font-family:var(--mono);font-weight:500;font-size:.94em;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
  color:var(--navy);white-space:nowrap;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.code-lg{font-size:24px;font-weight:600;letter-spacing:.02em}
.code[data-copy]{cursor:copy;border-bottom:1px dotted var(--line-strong)}
.hl{background:linear-gradient(transparent 62%,var(--yellow) 62%);padding:0 2px}
.copy-btn{
  border:1px solid var(--line);background:var(--white);color:var(--muted);
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 10px;border-radius:var(--r);cursor:pointer;
}
.copy-btn:hover{border-color:var(--navy);color:var(--navy)}
.copy-btn.is-done{background:var(--yellow);border-color:var(--yellow);color:var(--navy-ink)}

/* ---- header -------------------------------------------------------- */
.site-head{border-bottom:1px solid var(--line);background:var(--white);position:sticky;top:0;z-index:40}
.head-inner{display:grid;align-items:center;gap:16px 24px;padding:14px 24px;
  grid-template-columns:auto minmax(0,1fr) auto auto;
  grid-template-areas:"logo search nav basket"}
.logo{grid-area:logo;display:flex;align-items:baseline;gap:8px;text-decoration:none}
.logo:hover{text-decoration:none}
.logo-mark{font-weight:900;letter-spacing:.14em;font-size:19px;color:var(--navy)}
.logo-sub{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}

.head-search{grid-area:search;position:relative;display:flex}
.head-search input{
  flex:1;border:1px solid var(--line-strong);border-right:0;
  border-radius:var(--r) 0 0 var(--r);padding:11px 14px;font-size:14px;min-width:0;
}
.head-search input:focus{outline:none;border-color:var(--navy)}
.head-search button{
  border:0;background:var(--navy);color:#fff;padding:0 22px;cursor:pointer;
  border-radius:0 var(--r) var(--r) 0;font-size:13px;font-weight:600;letter-spacing:.04em;
}
.head-search button:hover{background:var(--navy-dk)}

.head-nav{grid-area:nav;display:flex;gap:22px;align-items:center;font-size:13px;font-weight:500}
.head-nav a{color:var(--navy-ink);white-space:nowrap}
.basket-link{grid-area:basket;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--navy-ink);white-space:nowrap}
.basket-short{display:none}
.basket-count{
  min-width:22px;height:22px;display:inline-grid;place-items:center;padding:0 6px;
  background:var(--yellow);color:var(--navy-ink);border-radius:11px;
  font-family:var(--mono);font-size:12px;font-weight:600;
}
.basket-count.is-zero{background:var(--panel-2);color:var(--muted)}

/* ---- suggestions --------------------------------------------------- */
.suggest{
  position:absolute;top:100%;left:0;right:0;background:#fff;
  border:1px solid var(--line-strong);border-top:0;z-index:50;max-height:340px;overflow:auto;
}
.suggest a{display:flex;justify-content:space-between;gap:12px;padding:9px 14px;border-bottom:1px solid var(--panel-2);font-size:13px}
.suggest a:hover{background:var(--panel);text-decoration:none}
.suggest .s-src{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em}

/* ---- hero ---------------------------------------------------------- */
.hero{background:var(--navy);color:#fff;padding:72px 0 56px}
.hero .wrap{max-width:960px}
.eyebrow{margin:0 0 14px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--yellow)}
.hero-h{font-size:clamp(30px,5vw,52px);font-weight:300;line-height:1.08;margin:0 0 28px;color:#fff}
.hero-search{display:flex;max-width:820px}
.hero-search input{
  flex:1;border:0;padding:18px 20px;font-size:16px;border-radius:var(--r) 0 0 var(--r);min-width:0;
}
.hero-search input:focus{outline:3px solid var(--yellow);outline-offset:-3px}
.hero-search button{
  border:0;background:var(--yellow);color:var(--navy-ink);font-weight:700;
  padding:0 32px;cursor:pointer;border-radius:0 var(--r) var(--r) 0;letter-spacing:.04em;
}
.hero-note{margin:14px 0 0;font-size:12px;color:#b9c0e6;max-width:70ch}

.counters{display:flex;flex-wrap:wrap;gap:48px;margin:48px 0 0;padding-top:28px;border-top:1px solid rgba(255,255,255,.16)}
.counters dt{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#b9c0e6;margin-bottom:6px}
.counters dd{margin:0;font-family:var(--mono);font-size:30px;font-weight:600;color:var(--yellow);font-variant-numeric:tabular-nums}

/* ---- headings ------------------------------------------------------ */
.page-h{font-size:30px;margin:0 0 8px;display:flex;flex-wrap:wrap;align-items:baseline;gap:12px}
.page-h .count{font-size:13px;color:var(--muted);font-family:var(--mono)}
.section-h{font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--muted);
  margin:0 0 22px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.block-h{font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:600;color:var(--navy);
  margin:0 0 14px;padding-bottom:10px;border-bottom:2px solid var(--yellow);display:inline-block;padding-right:40px}

.crumbs{padding:16px 24px;font-size:12px;color:var(--muted)}
.crumbs span{margin:0 7px;color:var(--line-strong)}
.crumbs b{font-weight:500;color:var(--navy-ink)}

/* ---- cards / grids -------------------------------------------------- */
.group-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1px;background:var(--line)}
.group-card{background:#fff;padding:22px;display:flex;flex-direction:column;gap:6px;transition:background .15s}
.group-card:hover{background:var(--panel);text-decoration:none}
.group-name{font-weight:600;font-size:15px}
.group-n{font-family:var(--mono);font-size:12px;color:var(--muted)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.path-card{border:1px solid var(--line);padding:28px;display:block;background:var(--panel)}
.path-card:hover{border-color:var(--navy);text-decoration:none}
.path-card h3{font-size:19px;margin-bottom:8px;font-weight:500}
.path-card p{margin:0;color:var(--muted);font-size:14px}

.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.product-card{border:1px solid var(--line);background:#fff;display:flex;flex-direction:column}
.product-card:hover{border-color:var(--line-strong)}
.pc-img{display:block;aspect-ratio:4/3;background:var(--panel);overflow:hidden}
.pc-img img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.pc-body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.pc-group{margin:0;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.pc-name{font-size:14px;font-weight:500;margin:0;line-height:1.3}
.pc-name a{color:var(--navy-ink)}
.pc-add{margin-top:auto;padding-top:10px}
.pc-add .btn-ghost{width:100%}

.match-chip{
  margin:2px 0 0;font-size:11px;color:var(--muted);background:var(--panel-2);
  padding:6px 8px;border-left:2px solid var(--yellow);display:flex;flex-direction:column;gap:2px;
}
.match-chip b{color:var(--navy);font-size:12px}

.brand-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1px;background:var(--line)}
.brand-card{background:#fff;padding:20px;display:flex;flex-direction:column;gap:4px}
.brand-card:hover{background:var(--panel);text-decoration:none}
.brand-name{font-weight:600}
.brand-n{font-family:var(--mono);font-size:12px;color:var(--muted)}

.group-columns{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:32px}
.group-col h2{font-size:15px;font-weight:600;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.group-col ul{list-style:none;margin:0;padding:0}
.group-col li a{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;color:var(--navy-ink)}
.group-col .n{font-family:var(--mono);font-size:12px;color:var(--muted)}

.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.cat-card{border:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:6px;background:var(--panel)}
.cat-card:hover{border-color:var(--navy);text-decoration:none}
.cat-title{font-weight:600}
.cat-meta{font-size:12px;color:var(--muted);font-family:var(--mono)}
.cat-dl{margin-top:10px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--navy)}

/* ---- product detail ------------------------------------------------- */
.product-detail{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;padding:8px 24px 64px;align-items:start}
/* The gallery stays in normal flow. It was sticky, which let it ride over
   the tables below on short screens — a catalog page is read top to bottom,
   so the image staying put is not worth an overlap. */
.pd-gallery{position:relative;z-index:0;align-self:start}
.pd-main{border:1px solid var(--line);background:var(--panel);aspect-ratio:4/3;
  max-height:min(58vh,480px);display:grid;place-items:center;padding:24px;overflow:hidden}
.pd-main img{max-width:100%;max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.pd-thumbs{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.pd-thumb{width:64px;height:64px;border:1px solid var(--line);background:var(--panel);
  padding:4px;cursor:pointer;display:grid;place-items:center}
.pd-thumb img{max-width:100%;max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.pd-thumb:hover{border-color:var(--navy)}
.pd-thumb.is-active{border-color:var(--navy);box-shadow:inset 0 0 0 2px var(--navy)}

.pd-group{margin:0 0 6px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.pd-name{font-size:34px;font-weight:300;margin:0 0 14px;line-height:1.1}
.pd-code{display:flex;align-items:center;gap:12px;margin:0 0 18px}
.pd-desc{color:var(--muted);max-width:60ch}

.pd-props{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));
  border-top:1px solid var(--line);border-left:1px solid var(--line);margin:24px 0}
.pd-props>div{background:#fff;padding:12px 14px;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.pd-props dt{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.pd-props dd{margin:0;font-family:var(--mono);font-size:14px;font-weight:500}

.pd-actions{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.qty-field{display:flex;flex-direction:column;gap:5px}
.qty-field span{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.qty-field input{width:86px;border:1px solid var(--line-strong);padding:10px;font-family:var(--mono);border-radius:var(--r)}

.pd-block{grid-column:1/-1;margin-top:44px}

/* ---- data tables ---------------------------------------------------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.data-table{font-size:14px}
.data-table th,.data-table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.data-table thead th{
  font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);
  font-weight:600;background:var(--panel);border-bottom:1px solid var(--line-strong);
}
.data-table tbody tr:hover{background:var(--panel)}
.specs th{width:280px;font-weight:500;color:var(--muted)}
.refs td:first-child{font-weight:600;width:200px}
.ref-type{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.apps .make-cell{font-weight:600}
.apps td:last-child{white-space:nowrap}
.xref-table td:nth-child(3){color:var(--muted)}
.tlink{background:none;border:0;padding:0;color:var(--navy);cursor:pointer;font-size:13px;text-decoration:underline}

/* ---- vehicle picker -------------------------------------------------- */
.vehicle-steps{display:grid;grid-template-columns:1fr 1fr 2fr;gap:24px;align-items:start}
.vstep h2{font-size:13px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--navy);
  display:flex;align-items:center;gap:10px;margin-bottom:14px}
.step-n{width:22px;height:22px;display:grid;place-items:center;background:var(--yellow);
  color:var(--navy-ink);font-family:var(--mono);font-size:12px;font-weight:600;border-radius:50%}
.vlist{list-style:none;margin:0;padding:0;border:1px solid var(--line);max-height:520px;overflow:auto}
.vlist li a{display:block;padding:10px 14px;border-bottom:1px solid var(--panel-2);font-size:14px;color:var(--navy-ink)}
.vlist li a:hover{background:var(--panel);text-decoration:none}
.vlist a.is-active{background:var(--navy);color:#fff}
.vlist a.is-active .vmeta{color:#b9c0e6}
.vmeta{display:block;font-size:11px;color:var(--muted);font-family:var(--mono)}

/* ---- buttons / forms -------------------------------------------------- */
.btn,.btn-ghost{
  display:inline-block;padding:12px 24px;border-radius:var(--r);font-size:13px;font-weight:600;
  letter-spacing:.04em;cursor:pointer;border:1px solid var(--navy);text-align:center;
}
.btn{background:var(--navy);color:#fff}
.btn:hover{background:var(--navy-dk);text-decoration:none}
.btn-primary{background:var(--yellow);border-color:var(--yellow);color:var(--navy-ink)}
.btn-primary:hover{background:#e8b800;border-color:#e8b800}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line-strong);padding:9px 14px;font-size:12px}
.btn-ghost:hover{border-color:var(--navy);text-decoration:none}

.inquiry-form{margin-top:40px;border-top:1px solid var(--line);padding-top:28px;max-width:840px}
.field-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.inquiry-form label{display:block}
.inquiry-form label.full{margin-top:16px}
.inquiry-form span{display:block;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:5px}
.inquiry-form input,.inquiry-form textarea{
  width:100%;border:1px solid var(--line-strong);padding:11px 12px;border-radius:var(--r);background:#fff;
}
.inquiry-form input:focus,.inquiry-form textarea:focus{outline:none;border-color:var(--navy)}
.inquiry-form .btn-primary{margin-top:20px}
.qty-form input{width:76px;border:1px solid var(--line-strong);padding:7px;font-family:var(--mono);border-radius:var(--r)}

.notice{padding:18px 22px;border-radius:var(--r);margin-bottom:24px}
.notice-ok{background:var(--panel);border-left:3px solid var(--ok)}
.notice-err{background:#fdf2f1;border-left:3px solid var(--err);color:var(--err)}
.empty-state{border:1px dashed var(--line-strong);padding:56px 32px;text-align:center;background:var(--panel)}
.empty-state h1,.empty-state h2{font-size:22px;margin-bottom:10px;font-weight:500}
.empty-state p{color:var(--muted);margin:0 0 20px}

.pager{display:flex;gap:6px;margin-top:32px;flex-wrap:wrap}
.pager a{padding:8px 13px;border:1px solid var(--line);font-family:var(--mono);font-size:13px;color:var(--navy-ink)}
.pager a:hover{border-color:var(--navy);text-decoration:none}
.pager a.is-current{background:var(--navy);color:#fff;border-color:var(--navy)}
.pager-gap{padding:8px 4px;color:var(--muted)}

/* ---- footer ----------------------------------------------------------- */
.site-foot{background:var(--navy-ink);color:#c8ccdf;margin-top:64px;padding:56px 0 0;font-size:13px}
.foot-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px}
.foot-brand{font-weight:900;letter-spacing:.14em;color:#fff;margin:0 0 12px}
.foot-h{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--yellow);margin:0 0 12px}
.foot-col a{display:block;color:#c8ccdf;padding:3px 0}
.foot-meta{margin:0;line-height:1.8;color:#9aa0bd}
.foot-note .foot-meta{font-size:11px}
.foot-legal{display:flex;justify-content:space-between;padding-top:20px;padding-bottom:24px;
  border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:#8e94b3}
.foot-legal a{color:#8e94b3}

/* ---- responsive -------------------------------------------------------- */
@media (max-width:1180px){
  .head-inner{gap:14px}
  .head-nav{gap:14px;font-size:12px}
  .basket-link{font-size:12px}
}
@media (max-width:1080px){
  .product-detail{grid-template-columns:1fr;gap:28px}
  .pd-gallery{max-width:420px}
  .vehicle-steps{grid-template-columns:1fr 1fr}
  .vstep-wide{grid-column:1/-1}
  .foot-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  /* Three tidy rows instead of a wrapped nav: identity, search, browse.
     The header stops sticking here — three rows pinned to the top would
     eat a third of a phone screen. */
  .site-head{position:static}
  .head-inner{grid-template-columns:1fr auto;gap:12px 16px;padding:12px 20px;
    grid-template-areas:"logo basket" "search search" "nav nav"}
  .logo-mark{font-size:17px}
  .logo-sub{font-size:10px;letter-spacing:.18em}
  .basket-text{display:none}
  .basket-short{display:inline}
  .head-search input{padding:12px;font-size:16px}   /* 16px stops iOS zooming on focus */
  .head-search button{padding:0 18px}
  /* browse links become one swipeable strip, bled to the screen edges */
  .head-nav{gap:20px;font-size:13px;overflow-x:auto;flex-wrap:nowrap;
    margin:0 -20px;padding:2px 20px 4px;scrollbar-width:none;
    -webkit-overflow-scrolling:touch;border-top:1px solid var(--line)}
  .head-nav::-webkit-scrollbar{display:none}
  .head-nav a{padding-top:8px}
  .split{grid-template-columns:1fr}
  .counters{gap:28px}
  .counters dd{font-size:24px}
  .pd-name{font-size:26px}
  .section{padding:32px 20px}
}
@media (max-width:600px){
  .vehicle-steps{grid-template-columns:1fr}
  .pd-main{max-height:46vh;padding:14px}
  .pd-name{font-size:22px}
  .pd-props{grid-template-columns:1fr 1fr}
  .apps,.refs,.xref-table{min-width:520px}   /* scrolls inside .table-scroll */
  .pd-actions{gap:10px}
  .pd-actions .btn,.pd-actions .btn-ghost{flex:1 1 140px}
  .product-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
  .foot-inner{grid-template-columns:1fr;gap:28px}
  .data-table{font-size:13px}
  .data-table th,.data-table td{padding:9px 10px}
  .specs th{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}