/* Lowveld Power Transmission: shared styles */
:root{
  --ink:#14231A; --green:#1F5135; --green-2:#2C6B47; --green-3:#E6EFE8; --amber:#F2A33A; --amber-d:#D9861C; --amber-l:#FCEBD0;
  --cream:#F7F4EC; --paper:#FFFFFF; --line:#E3DDCF; --muted:#5B6B60; --wa:#25D366; --red:#B3261E; --red-l:#FBE7E5;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.65 Inter,system-ui,sans-serif}
img,svg{max-width:100%}
a{color:var(--green)}
h1,h2,h3,h4{font-family:"Barlow Condensed",Inter,sans-serif;line-height:1.08;margin:0 0 .45em;letter-spacing:.2px}
h1{font-size:clamp(2.3rem,6vw,4rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.8vw,2.4rem);font-weight:800}
h3{font-size:1.45rem;font-weight:700}
h4{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
code,.mono{font-family:ui-monospace,Consolas,monospace;font-size:.92em}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.85em 1.3em;border-radius:10px;font-weight:700;text-decoration:none;border:0;cursor:pointer;font-size:1rem;font-family:inherit;transition:background .15s}
.btn-wa{background:var(--wa);color:#05310F}.btn-wa:hover{background:#1fbe5a}
.btn-amber{background:var(--amber);color:var(--ink)}.btn-amber:hover{background:var(--amber-d)}
.btn-green{background:var(--green);color:#fff}.btn-green:hover{background:var(--green-2)}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55)}
.btn-sm{padding:.55em .9em;font-size:.9rem}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:700;color:var(--amber-d);margin-bottom:.5em}

/* header */
.site-head{position:sticky;top:0;z-index:40;background:rgba(247,244,236,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.brand-badge{width:52px;height:52px;border-radius:10px;flex:none}
.brand b{font-family:"Barlow Condensed";font-size:1.3rem;font-weight:800;line-height:1;color:var(--green);display:block}
.brand small{display:block;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:600}
.nav{display:flex;gap:4px;align-items:center}
.nav>a,.nav .dd>button{text-decoration:none;font-weight:600;font-size:.94rem;color:var(--ink);padding:.5em .75em;border-radius:8px;background:none;border:0;font-family:inherit;cursor:pointer}
.nav>a:hover,.nav .dd>button:hover,.nav a.on{background:var(--green-3)}
.dd{position:relative}
.dd-menu{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 40px rgba(0,0,0,.12);padding:8px;min-width:270px}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{display:block}
.dd-menu a{display:block;padding:.5em .7em;border-radius:8px;text-decoration:none;color:var(--ink);font-size:.93rem}
.dd-menu a small{display:block;color:var(--muted);font-size:.8rem}
.dd-menu a:hover{background:var(--cream)}
.dd.lang .dd-menu{min-width:160px;left:auto;right:0}
.menu-btn{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--green)}
@media (max-width:900px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 16px 16px;border-bottom:1px solid var(--line);max-height:calc(100vh - 64px);overflow:auto}
  .nav.open{display:flex}
  .dd-menu{display:block;position:static;box-shadow:none;border:0;padding:0 0 0 10px;min-width:0}
  .dd>button{display:none}
  .menu-btn{display:block}
}

/* page hero */
.phero{background:radial-gradient(1000px 400px at 90% -20%,#2C6B47 0%,transparent 60%),var(--green);color:#fff;padding:46px 0 40px}
.phero p.lead{font-size:1.12rem;color:#DCE8DF;max-width:46em;margin:0}
.crumbs{font-size:.85rem;color:#BFD3C5;margin-bottom:10px}
.crumbs a{color:#fff}

/* docs layout */
.doc{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;padding:40px 16px 70px}
.toc{position:sticky;top:84px;align-self:start;font-size:.9rem;max-height:calc(100vh - 100px);overflow:auto}
.toc b{display:block;font-family:"Barlow Condensed";font-size:1.05rem;color:var(--green);margin-bottom:6px}
.toc a{display:block;text-decoration:none;color:var(--muted);padding:.28em 0 .28em 10px;border-left:2px solid var(--line)}
.toc a:hover{color:var(--green);border-left-color:var(--amber)}
.article{max-width:820px}
.article h2{margin-top:1.6em;padding-top:.2em;border-top:1px solid var(--line)}
.article h2:first-child{margin-top:0;border-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}.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(--line);border-radius:999px;padding:.2em .75em;background:#fff;font-size:.82rem}}
@media (max-width:420px){.brand b{font-size:1.05rem}.brand-badge{width:44px;height:44px}}

/* tables */
.tbl{width:100%;overflow-x:auto;margin:0 0 1.3em;border:1px solid var(--line);border-radius:12px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:.92rem}
th,td{padding:.55em .7em;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--green);color:#fff;font-weight:600;white-space:nowrap}
tr:last-child td{border-bottom:0}
tbody tr:nth-child(even){background:#FBFAF6}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}

/* callouts */
.note,.warn,.rule,.tip{border-radius:12px;padding:14px 16px;margin:0 0 1.2em;border-left:5px solid}
.note{background:var(--green-3);border-color:var(--green)}
.rule{background:var(--amber-l);border-color:var(--amber)}
.warn{background:var(--red-l);border-color:var(--red)}
.tip{background:#fff;border-color:var(--amber);border:1px solid var(--line);border-left:5px solid 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:ui-monospace,Consolas,monospace;background:#fff;border:1px dashed #CFC7B5;border-radius:10px;padding:10px 14px;margin:0 0 1em;overflow-x:auto;white-space:pre;font-size:.9rem}

/* 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(--line);border-radius:14px;padding:20px;background:#fff;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--amber);transform:translateY(-2px)}
.card h3{font-size:1.3rem;color:var(--green);margin-bottom:.25em}
.card p{font-size:.93rem;color:var(--muted);margin:0}
.card .kicker{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--amber-d)}
section.band{padding:64px 0}
section.band.white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.center{text-align:center}
.sub{color:var(--muted);max-width:44em}
.center .sub{margin-left:auto;margin-right:auto}

/* calculators */
.calc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;margin:0 0 26px}
.calc h3{margin-bottom:.2em}
.calc .desc{color:var(--muted);font-size:.93rem;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:.84rem;display:block;margin-bottom:3px}
label small{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;font:inherit;font-size:.95rem;padding:.55em .7em;border:1px solid #CFC7B5;border-radius:9px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:3px solid rgba(242,163,58,.45);border-color:var(--amber-d)}
.out{background:var(--cream);border:1px solid var(--line);border-radius:12px;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-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.out dd.big{font-size:1.25rem;color:var(--green)}
.out .msg{font-size:.86rem;border-radius:8px;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(--line);background:var(--cream);border-radius:999px;padding:.35em .9em;font:inherit;font-size:.86rem;cursor:pointer}
.seg button.on{background:var(--green);color:#fff;border-color:var(--green)}

/* quote tool */
.qt{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.qt .full{grid-column:1/-1}
.qt .note-s{font-size:.8rem;color:var(--muted);margin:0}
@media (max-width:700px){.qt{grid-template-columns:1fr}}

/* FAQ blocks (calculator pages; home has its own copy in home.css) */
details.faq{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:10px}
details.faq summary{font-weight:700;cursor:pointer}
details.faq p{margin:.7em 0 0;color:var(--muted)}
.calcpage{max-width:980px;padding:32px 16px 64px}
.calcpage h2{margin-top:1.4em}

/* footer */
.site-foot{background:var(--ink);color:#BFC8C1;font-size:.88rem;padding:44px 0 96px;margin-top:0}
.site-foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
.site-foot b{color:#fff;display:block;margin-bottom:6px}
.site-foot a{color:#E8E3D6;text-decoration:none;display:block;padding:2px 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:#05310F;border-radius:999px;padding:.8em 1.1em;font-weight:700;text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.25);display:flex;align-items:center;gap:.5em}
@media (max-width:600px){.fab{left:12px;right:12px;bottom:12px;justify-content:center}}

@media print{.site-head,.site-foot,.fab,.toc,.actions{display:none!important}body{background:#fff}.doc{display:block}}