/* Lowveld Power Transmission: shared styles (V3 design system, 2026-10-28)
   Data before decoration: neutral surfaces, 1px rules instead of shadows, one action colour (amber),
   brand green for the header and headings, IBM Plex Mono for part numbers and spec values. */
:root{
  /* brand */
  --green:#1F5135; --green-2:#2C6B47; --green-3:#E6EFE8; --amber:#F2A33A; --amber-d:#D9861C; --amber-l:#FCEBD0;
  /* neutrals */
  --ink:#14231A; --canvas:#FFFFFF; --panel:#F7F4EC; --rule:#DDD8CB; --muted:#5B6B60;
  /* roles */
  --action:var(--amber); --action-ink:#14231A; --link:#1F5135; --wa:#25D366; --wa-ink:#05310F;
  /* status */
  --ok:#1E7F3C; --ok-l:#E3F2E7; --info:#0B66C3; --info-l:#E5F0FB; --warn:#B26A00; --red:#B3261E; --red-l:#FBE7E5;
  /* legacy aliases used in page markup */
  --cream:var(--panel); --paper:var(--canvas); --line:var(--rule);
  /* shape */
  --r-card:6px; --r-btn:4px; --max:1280px;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--canvas);color:var(--ink);font:16px/1.5 Inter,system-ui,sans-serif}
img,svg{max-width:100%}
a{color:var(--link);text-underline-offset:2px}
:focus-visible{outline:3px solid var(--amber-d);outline-offset:2px}
h1,h2,h3,h4{font-family:"Barlow Condensed",Inter,sans-serif;line-height:1.05;margin:0 0 .45em;letter-spacing:.005em}
h1{font-size:clamp(2.25rem,5.4vw,3.75rem);font-weight:800;text-transform:uppercase}
h2{font-size:clamp(1.75rem,3.4vw,2.75rem);font-weight:800}
h3{font-size:1.5rem;font-weight:700}
h4{font-size:1.25rem;font-weight:700}
p{margin:0 0 1em}
code,.mono{font-family:var(--mono);font-weight:500;font-size:.92em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
@media (min-width:700px){.wrap{padding:0 24px}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* buttons: amber = the action; everything else is secondary */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:44px;padding:.65em 1.15em;border-radius:var(--r-btn);font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;font-size:1rem;font-family:inherit;line-height:1.2;transition:background .15s,border-color .15s}
.btn-amber{background:var(--action);color:var(--action-ink)}.btn-amber:hover{background:var(--amber-d)}
.btn-wa{background:var(--wa);color:var(--wa-ink)}.btn-wa:hover{background:#1fbe5a}
.btn-green{background:var(--green);color:#fff}.btn-green:hover{background:var(--green-2)}
.btn-line{background:var(--canvas);color:var(--ink);border-color:var(--rule)}.btn-line:hover{border-color:var(--ink)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}.btn-ghost:hover{border-color:#fff}
.btn-sm{min-height:36px;padding:.45em .85em;font-size:.9rem}
.btn svg{flex:none}
.eyebrow{font-family:"Barlow Condensed",Inter,sans-serif;text-transform:uppercase;letter-spacing:.08em;font-size:.95rem;font-weight:700;color:var(--amber-d);margin-bottom:.4em}

/* utility bar (scrolls away; the header below it stays) */
.util{background:var(--panel);border-bottom:1px solid var(--rule);font-size:.84rem;color:var(--muted)}
.util .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:32px}
.util p{margin:0;display:flex;flex-wrap:wrap;gap:4px 18px}
.util b{color:var(--ink);font-weight:600}
.util a{color:var(--ink);font-weight:600;text-decoration:none}
.util a:hover{text-decoration:underline}
.util .dd>button{font:inherit;font-size:.84rem;font-weight:600;padding:.2em .5em;min-height:30px;color:var(--ink);background:none;border:1px solid transparent;border-radius:var(--r-btn);cursor:pointer;white-space:nowrap}
.util .dd>button:hover{border-color:var(--rule);background:#fff}
@media (max-width:700px){.util .hide-s{display:none}}
@media (max-width:520px){.util .hide-xs{display:none}}

/* header: solid brand green, search is the widest element */
.site-head{position:sticky;top:0;z-index:40;background:var(--green);color:#fff}
.site-head .bar{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;flex:none}
.brand-mark{width:44px;height:44px;border-radius:9px;box-shadow:0 0 0 1px rgba(255,255,255,.35);flex:none}
.brand b{font-family:"Barlow Condensed";font-size:1.3rem;font-weight:800;line-height:1;display:block;letter-spacing:.01em}
.brand small{display:block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#CFE0D4;font-weight:600;margin-top:2px}
.hd-search{flex:1;min-width:0;position:relative}
.hd-search form{display:flex;height:46px;background:#fff;border-radius:var(--r-card);overflow:hidden;border:2px solid #fff}
.hd-search form:focus-within{border-color:var(--amber)}
.hd-search input{flex:1;min-width:0;border:0;border-radius:0;padding:0 14px;font-size:1rem;height:100%;outline:0;background:#fff}
.hd-search input::placeholder{color:#6E7A72}
.hd-search button{flex:none;border:0;background:var(--action);color:var(--action-ink);font:inherit;font-weight:700;padding:0 16px;cursor:pointer;display:flex;align-items:center;gap:6px}
.hd-search button:hover{background:var(--amber-d)}
.nav{display:flex;gap:2px;align-items:center;flex:none}
.nav>a,.nav .dd>button{text-decoration:none;font-weight:600;font-size:.95rem;color:#fff;padding:.55em .6em;border-radius:var(--r-btn);background:none;border:0;font-family:inherit;cursor:pointer;min-height:44px;display:inline-flex;align-items:center}
.nav>a:hover,.nav .dd>button:hover,.nav a.on{background:rgba(255,255,255,.12)}
.dd{position:relative}
.dd-menu{display:none;position:absolute;top:100%;left:0;background:#fff;color:var(--ink);border:1px solid var(--rule);border-radius:var(--r-card);box-shadow:0 12px 32px rgba(20,35,26,.14);padding:8px;min-width:280px;z-index:45}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{display:block}
.dd-menu a{display:block;padding:.5em .7em;border-radius:var(--r-btn);text-decoration:none;color:var(--ink);font-size:.94rem}
.dd-menu a small{display:block;color:var(--muted);font-size:.82rem}
.dd-menu a:hover,.dd-menu a.on{background:var(--panel)}
.dd.lang .dd-menu{min-width:160px;left:auto;right:0}
/* products mega-menu */
.dd.mega{position:static}
.mega .dd-menu{left:0;right:0;top:100%;padding:0;min-width:0;border-radius:0 0 var(--r-card) var(--r-card)}
.mega-in{max-width:var(--max);margin:0 auto;padding:20px 24px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px}
.mega-in h4{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 8px}
.mega-types{display:grid;grid-template-columns:1fr 1fr;gap:2px 8px}
.mega-types a{display:flex;align-items:center;gap:10px;padding:.4em .5em}
.mega-types svg{width:34px;height:26px;flex:none}
.mega-cta{background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-card);padding:16px}
.mega-cta p{font-size:.9rem;color:var(--muted)}
.menu-btn{display:none;background:none;border:0;color:#fff;cursor:pointer;width:44px;height:44px;border-radius:var(--r-btn);flex:none}
.menu-btn:hover{background:rgba(255,255,255,.12)}
@media (max-width:1100px){
  .site-head .bar{gap:12px}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:8px 16px 16px;border-bottom:1px solid var(--rule);max-height:calc(100vh - 130px);overflow:auto;box-shadow:0 12px 24px rgba(20,35,26,.12)}
  .nav.open{display:flex}
  .nav>a,.nav .dd>button{color:var(--ink)}
  .nav>a:hover,.nav a.on{background:var(--panel)}
  .nav .btn{margin-top:8px}
  .nav .dd-menu{display:block;position:static;box-shadow:none;border:0;padding:0 0 8px 8px;min-width:0}
  .nav .dd>button{display:none}
  .mega-in{display:block;padding:0}
  .mega-in>div{margin-bottom:8px}
  .mega-cta{display:none}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
}
@media (max-width:760px){
  .site-head .bar{height:60px;flex-wrap:wrap}
  .brand{flex:1}
  .brand-mark{width:38px;height:38px}
  .brand b{font-size:1.12rem}
  .hd-search{order:3;flex:0 0 100%;padding-bottom:10px}
  .site-head .bar{height:auto;padding-top:10px;row-gap:10px}
  .hd-search button span{display:none}
}
@media (max-width:380px){.brand small{display:none}}
@media (max-width:760px){html{scroll-padding-top:136px}}

/* search suggestions */
.search-pop{position:absolute;left:0;right:0;top:calc(100% + 6px);background:#fff;color:var(--ink);border:1px solid var(--rule);border-radius:var(--r-card);box-shadow:0 16px 36px rgba(20,35,26,.18);z-index:46;max-height:min(70vh,560px);overflow:auto}
@media (max-width:760px){.search-pop{top:calc(100% - 4px)}}
.search-pop[hidden]{display:none}
.sp-sec{padding:10px 14px;border-bottom:1px solid var(--rule)}
.sp-sec:last-child{border-bottom:0}
.sp-sec>h5{margin:0 0 6px;font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.sp-sec a.sp-link{display:block;padding:.45em .5em;border-radius:var(--r-btn);text-decoration:none;color:var(--ink)}
.sp-sec a.sp-link:hover,.sp-sec a.sp-link.on{background:var(--panel)}
.sp-sec a.sp-link small{color:var(--muted);margin-left:6px}

/* decoded part: used by the search, Belt Finder and size lookup */
.part{border:1px solid var(--rule);border-radius:var(--r-card);padding:14px;background:#fff}
.part+.part{margin-top:10px}
.part-top{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:6px}
.part-code{font-family:var(--mono);font-weight:500;font-size:1.2rem;letter-spacing:.02em}
.copy{border:1px solid var(--rule);background:var(--canvas);border-radius:var(--r-btn);font:inherit;font-size:.8rem;padding:.2em .55em;cursor:pointer;color:var(--muted)}
.copy:hover{border-color:var(--ink);color:var(--ink)}
.part-name{font-weight:600;margin:0 0 8px}
.spec{display:grid;grid-template-columns:auto 1fr;gap:2px 14px;margin:0 0 10px;font-size:.9rem}
.spec dt{color:var(--muted)}
.spec dd{margin:0;font-family:var(--mono);font-weight:500}
.part-act{display:flex;flex-wrap:wrap;gap:8px}
.conf{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:.25em .6em;border-radius:999px}
.conf::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.conf.ok{background:var(--ok-l);color:var(--ok)}
.conf.chk{background:var(--info-l);color:var(--info)}
.conf.tech{background:var(--amber-l);color:#6B4300}
.part-note{font-size:.84rem;color:var(--muted);margin:8px 0 0}

/* page hero (inner pages) */
.phero{background:var(--panel);border-bottom:1px solid var(--rule);padding:36px 0 32px}
.phero h1{color:var(--ink)}
.phero p.lead{font-size:1.12rem;color:var(--muted);max-width:46em;margin:0}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:10px}
.crumbs a{color:var(--link)}

/* docs layout */
.doc{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;padding:40px 24px 72px}
.toc{position:sticky;top:96px;align-self:start;font-size:.92rem;max-height:calc(100vh - 110px);overflow:auto}
.toc b{display:block;font-family:"Barlow Condensed";font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px}
.toc a{display:block;text-decoration:none;color:var(--ink);padding:.3em 0 .3em 12px;border-left:2px solid var(--rule)}
.toc a:hover{color:var(--green);border-left-color:var(--amber)}
.article{max-width:820px}
.article h2{margin-top:1.6em;padding-top:.5em;border-top:1px solid var(--rule)}
.article h2:first-child{margin-top:0;border-top:0;padding-top:0}
.article h3{margin-top:1.3em;color:var(--green)}
.article ul,.article ol{padding-left:1.3em}
.article li{margin:.3em 0}
.doc>*{min-width:0}
@media (max-width:900px){.doc{grid-template-columns:minmax(0,1fr);gap:24px;padding:28px 16px 64px}.toc{position:static;max-height:none;display:flex;flex-wrap:wrap;gap:6px}
  .toc b{width:100%;margin:4px 0 0}.toc a{border:1px solid var(--rule);border-radius:999px;padding:.35em .8em;background:#fff;font-size:.86rem}}

/* tables: dense, data-first */
.tbl{width:100%;overflow-x:auto;margin:0 0 1.3em;border:1px solid var(--rule);border-radius:var(--r-card);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.94rem}
th,td{padding:.55em .75em;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}
th{background:var(--panel);color:var(--ink);font-weight:700;white-space:nowrap;font-size:.84rem;text-transform:uppercase;letter-spacing:.04em;border-bottom:2px solid var(--rule)}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:#FBFAF6}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
td:first-child{font-weight:600}

/* callouts */
.note,.warn,.rule,.tip{border-radius:var(--r-card);padding:14px 16px;margin:0 0 1.2em;border:1px solid var(--rule);border-left:4px solid}
.note{background:var(--green-3);border-left-color:var(--green)}
.rule{background:var(--amber-l);border-left-color:var(--amber-d)}
.warn{background:var(--red-l);border-left-color:var(--red)}
.tip{background:#fff;border-left-color:var(--amber)}
.note b:first-child,.warn b:first-child,.rule b:first-child,.tip b:first-child{display:block;margin-bottom:2px}
.formula{font-family:var(--mono);background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-card);padding:10px 14px;margin:0 0 1em;overflow-x:auto;white-space:pre;font-size:.88rem}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{display:block;text-decoration:none;color:inherit;border:1px solid var(--rule);border-radius:var(--r-card);padding:20px;background:#fff;transition:border-color .15s}
a.card:hover{border-color:var(--ink)}
a.card:hover h3{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.card h3{font-size:1.35rem;color:var(--green);margin-bottom:.25em}
.card p{font-size:.94rem;color:var(--muted);margin:0}
.card .kicker{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-d)}
section.band{padding:64px 0}
section.band.white{background:var(--panel);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.center{text-align:center}
.sub{color:var(--muted);max-width:44em}
.center .sub{margin-left:auto;margin-right:auto}
@media (max-width:700px){section.band{padding:44px 0}}

/* calculators */
.calc{background:#fff;border:1px solid var(--rule);border-radius:var(--r-card);padding:22px;margin:0 0 26px}
.calc h3{margin-bottom:.2em}
.calc .desc{color:var(--muted);font-size:.94rem;margin-bottom:14px}
.cgrid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:20px}
@media (max-width:820px){.cgrid{grid-template-columns:1fr}}
.inputs{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px;align-content:start}
.inputs .full{grid-column:1/-1}
@media (max-width:480px){.inputs{grid-template-columns:1fr}}
label{font-weight:600;font-size:.88rem;display:block;margin-bottom:4px}
label small{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;font:inherit;font-size:1rem;min-height:44px;padding:.55em .7em;border:1px solid #C9C3B4;border-radius:var(--r-card);background:#fff;color:var(--ink)}
textarea{min-height:0}
input:focus,select:focus,textarea:focus{outline:3px solid rgba(242,163,58,.45);border-color:var(--amber-d)}
.out{background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-card);padding:14px 16px;align-self:start}
.out dl{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin:0 0 10px}
.out dt{color:var(--muted);font-size:.9rem}
.out dd{margin:0;font-family:var(--mono);font-weight:500;text-align:right;font-variant-numeric:tabular-nums}
.out dd.big{font-size:1.2rem;color:var(--green)}
.out .msg{font-size:.88rem;border-radius:var(--r-btn);padding:8px 10px;margin:6px 0 0}
.out .msg.bad{background:var(--red-l);color:var(--red)}
.out .msg.ok{background:var(--green-3);color:var(--green)}
.out .msg.info{background:var(--amber-l);color:#6B4300}
.calc details{margin-top:12px;font-size:.9rem}
.calc summary{cursor:pointer;font-weight:600;color:var(--green)}
.calc .actions{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}
.seg{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.seg button{border:1px solid var(--rule);background:#fff;border-radius:999px;padding:.45em 1em;min-height:38px;font:inherit;font-size:.9rem;cursor:pointer}
.seg button.on{background:var(--green);color:#fff;border-color:var(--green)}

/* quote tool */
.qt{background:#fff;border:1px solid var(--rule);border-radius:var(--r-card);padding:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.qt .full{grid-column:1/-1}
.qt .note-s{font-size:.84rem;color:var(--muted);margin:0}
@media (max-width:700px){.qt{grid-template-columns:1fr}}

/* FAQ blocks */
details.faq{background:#fff;border:1px solid var(--rule);border-radius:var(--r-card);padding:0;margin-bottom:8px}
details.faq summary{font-weight:700;cursor:pointer;padding:16px 20px;min-height:44px}
details.faq p{margin:0;padding:0 20px 16px;color:var(--muted)}
.calcpage{max-width:1000px;padding:32px 16px 64px}
.calcpage h2{margin-top:1.4em}

/* footer */
.site-foot{background:var(--ink);color:#BFC8C1;font-size:.9rem;padding:48px 0 104px}
.site-foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.site-foot b{color:#fff;display:block;margin-bottom:6px;font-family:"Barlow Condensed";font-size:1.1rem;letter-spacing:.03em;text-transform:uppercase}
.site-foot a{color:#E8E3D6;text-decoration:none;display:block;padding:3px 0}
.site-foot a:hover{color:var(--amber)}
@media (max-width:800px){.site-foot .wrap{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.site-foot .wrap{grid-template-columns:1fr}}

/* floating WhatsApp */
.fab{position:fixed;right:18px;bottom:18px;z-index:50;background:var(--wa);color:var(--wa-ink);border-radius:999px;min-height:48px;padding:.75em 1.15em;font-weight:700;text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.22);display:flex;align-items:center;gap:.5em}
@media (max-width:600px){.fab{left:12px;right:12px;bottom:12px;justify-content:center}}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.util,.site-head,.site-foot,.fab,.toc,.actions{display:none!important}body{background:#fff}.doc{display:block}}