/* ============================================================
   NDV Engineering — ndvkathu.co.za
   Theme drawn from the NDV logo: white ground, glossy black,
   NDV red (#E01118), diagonal slash motif.
   ============================================================ */
:root{
  --red:#e01118;
  --red-dark:#9e070d;
  --red-bright:#ff4a4a;
  --black:#0c0c0c;
  --ink:#1a1a1a;
  --grey:#5b5b5f;
  --line:#e8e8ea;
  --bg:#ffffff;
  --bg-soft:#f6f6f7;
  --wa:#25d366;
  --shadow:0 14px 40px rgba(0,0,0,.10);
  --rad:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Archivo',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,92%);margin:0 auto}

h1,h2,h3,.disp{
  font-family:'Archivo Black','Archivo',sans-serif;
  font-weight:900;line-height:1.05;letter-spacing:-.01em;color:var(--black);
  text-transform:uppercase;
}
.lead{color:var(--grey);font-size:1.08rem;line-height:1.75}

/* ---------- slash motif (from the logo) ---------- */
.slashes{display:inline-flex;gap:7px;align-items:stretch;height:16px}
.slashes i{width:9px;background:linear-gradient(180deg,var(--red-bright),var(--red-dark));transform:skewX(-24deg);border-radius:1px}
.slashes i:nth-child(2){width:7px;margin-top:3px}
.slashes i:nth-child(3){width:5px;margin-top:6px}
.kicker{
  display:inline-flex;align-items:center;gap:12px;
  font-weight:800;letter-spacing:.22em;text-transform:uppercase;
  color:var(--red);font-size:.8rem;margin-bottom:14px;
}

/* ---------- top bar ---------- */
.topbar{background:var(--black);color:#cfcfcf;font-size:.8rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:12px;flex-wrap:wrap}
.topbar a{color:#fff;font-weight:600}
.topbar .tb-right{display:flex;gap:18px;align-items:center}
.badge-l1{background:linear-gradient(135deg,var(--red),var(--red-dark));color:#fff;font-weight:800;padding:3px 12px;border-radius:99px;font-size:.72rem;letter-spacing:.08em}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;min-height:78px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:46px;width:auto}
.brand .brand-sub{font-family:'Archivo Black',sans-serif;font-size:.62rem;letter-spacing:.42em;color:var(--red);text-transform:uppercase;margin-top:2px}
.navlinks{display:flex;align-items:center;gap:30px;list-style:none}
.navlinks a{font-weight:700;font-size:.92rem;color:var(--ink);position:relative;padding:6px 0;text-transform:uppercase;letter-spacing:.04em}
.navlinks a::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--red);transform:skewX(-24deg);transition:width .28s}
.navlinks a:hover::after,.navlinks a.active::after{width:100%}
.navlinks a.active{color:var(--red)}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--red),var(--red-dark));color:#fff;
  font-weight:800;text-transform:uppercase;letter-spacing:.06em;font-size:.86rem;
  padding:13px 26px;border:0;cursor:pointer;
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
  transition:transform .22s,box-shadow .22s,filter .22s;
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 10px 24px rgba(224,17,24,.35)}
.btn.dark{background:linear-gradient(135deg,#2a2a2a,#000)}
.btn.wa{background:linear-gradient(135deg,#2ee06f,#1da851)}
.btn svg{width:17px;height:17px;fill:currentColor}
.hamburger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.hamburger span{display:block;width:26px;height:3px;background:var(--black);margin:5px 0;transition:.3s;transform-origin:center}
.hamburger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg)}
.hero::before{ /* big red diagonal like the profile cover */
  content:"";position:absolute;top:-40%;right:-22%;width:62%;height:190%;
  background:linear-gradient(160deg,var(--red-bright),var(--red) 45%,var(--red-dark));
  transform:rotate(24deg);z-index:0;
}
.hero::after{
  content:"";position:absolute;top:-46%;right:-30%;width:20%;height:200%;
  background:#0c0c0c;transform:rotate(24deg);z-index:0;opacity:.92;
}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:84px 0 96px}
.hero h1{font-size:clamp(2.3rem,5vw,4rem)}
.hero h1 .red{color:var(--red)}
.hero p{margin:22px 0 32px;max-width:520px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-card{
  position:relative;background:#fff;border-radius:var(--rad);box-shadow:var(--shadow);
  padding:38px 34px;border-top:6px solid var(--red);
}
.hero-card img{width:82%;margin:0 auto 8px}
.hero-card .hc-tag{ text-align:center;font-family:'Archivo Black',sans-serif;letter-spacing:.5em;color:var(--red);font-size:.78rem;text-transform:uppercase}
.hero-card .hc-sub{text-align:center;color:var(--grey);font-size:.85rem;margin-top:10px}

/* ---------- stats ---------- */
.stats{background:var(--black);color:#fff;position:relative;overflow:hidden}
.stats::before{content:"";position:absolute;left:-6%;top:-70%;width:16%;height:260%;background:var(--red);transform:rotate(24deg);opacity:.9}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:52px 0;position:relative;z-index:1}
.stat{text-align:center}
.stat b{display:block;font-family:'Archivo Black',sans-serif;font-size:2.4rem;color:#fff}
.stat b em{color:var(--red-bright);font-style:normal}
.stat span{color:#b9b9bd;font-size:.85rem;text-transform:uppercase;letter-spacing:.12em}

/* ---------- sections ---------- */
.section{padding:92px 0}
.section.soft{background:var(--bg-soft)}
.sec-head{max-width:680px;margin-bottom:52px}
.sec-head h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .kicker{justify-content:center}

/* ---------- service cards ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--rad);
  padding:34px 30px;position:relative;overflow:hidden;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card::before{content:"";position:absolute;top:0;left:0;width:100%;height:5px;background:linear-gradient(90deg,var(--red),var(--red-dark));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card .icon{
  width:60px;height:60px;border-radius:14px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,#1c1c1c,#000);
}
.card .icon svg{width:30px;height:30px;fill:#fff}
.card:hover .icon{background:linear-gradient(135deg,var(--red),var(--red-dark))}
.card h3{font-size:1.12rem;margin-bottom:12px}
.card p{color:var(--grey);font-size:.95rem;line-height:1.7;margin-bottom:20px}
.wa-link{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:.85rem;color:#1da851;text-transform:uppercase;letter-spacing:.05em}
.wa-link svg{width:18px;height:18px;fill:#1da851}
.wa-link:hover{text-decoration:underline}

/* ---------- values ---------- */
.values{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.value{
  background:#fff;border-radius:var(--rad);padding:28px 20px;text-align:center;
  border:1px solid var(--line);transition:transform .3s,box-shadow .3s;
}
.value:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.value .vnum{font-family:'Archivo Black',sans-serif;color:var(--red);font-size:.85rem;letter-spacing:.2em}
.value h3{font-size:.98rem;margin:10px 0 8px}
.value p{color:var(--grey);font-size:.83rem;line-height:1.6}

/* ---------- B-BBEE band ---------- */
.bee{background:linear-gradient(135deg,var(--red) 0%,var(--red-dark) 100%);color:#fff;position:relative;overflow:hidden}
.bee::after{content:"";position:absolute;right:-4%;top:-80%;width:26%;height:300%;background:rgba(0,0,0,.22);transform:rotate(24deg)}
.bee .container{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:46px 0;flex-wrap:wrap;position:relative;z-index:1}
.bee h2{color:#fff;font-size:1.6rem}
.bee p{opacity:.92;margin-top:8px;max-width:560px}
.bee .btn{background:#fff;color:var(--red);clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%)}

/* ---------- projects gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.g-item{position:relative;border-radius:var(--rad);overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:#111}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.g-item:hover img{transform:scale(1.07)}
.g-item figcaption{
  position:absolute;inset:auto 0 0 0;padding:38px 20px 16px;color:#fff;font-weight:700;font-size:.92rem;
  background:linear-gradient(0deg,rgba(0,0,0,.82),transparent);
}
.g-item .g-tag{position:absolute;top:14px;left:14px;background:var(--red);color:#fff;font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:5px 12px;clip-path:polygon(6px 0,100% 0,calc(100% - 6px) 100%,0 100%)}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.92);display:none;place-items:center;z-index:2000;padding:4vw}
.lightbox.open{display:grid}
.lightbox img{max-width:92vw;max-height:82vh;border-radius:10px}
.lightbox .lb-cap{color:#fff;text-align:center;margin-top:14px;font-weight:600}
.lightbox .lb-x{position:absolute;top:22px;right:30px;color:#fff;font-size:2.2rem;background:none;border:0;cursor:pointer;line-height:1}

/* ---------- page hero (inner pages) ---------- */
.page-hero{position:relative;background:var(--black);color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-10%;top:-90%;width:34%;height:300%;background:linear-gradient(160deg,var(--red-bright),var(--red-dark));transform:rotate(24deg)}
.page-hero::after{content:"";position:absolute;right:14%;top:-90%;width:5%;height:300%;background:rgba(255,255,255,.06);transform:rotate(24deg)}
.page-hero .container{position:relative;z-index:1;padding:74px 0}
.page-hero h1{color:#fff;font-size:clamp(2rem,4.4vw,3.2rem)}
.page-hero p{color:#c9c9cd;margin-top:14px;max-width:600px}
.crumb{color:#9a9aa0;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px;font-weight:700}
.crumb a{color:var(--red-bright)}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.about-grid .chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.chip{background:#fff;border:1px solid var(--line);border-radius:99px;padding:9px 18px;font-size:.82rem;font-weight:700}
.chip b{color:var(--red)}
.mv{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.mv .card h3{display:flex;align-items:center;gap:12px}
.checklist{list-style:none;margin-top:18px}
.checklist li{padding:10px 0 10px 34px;position:relative;color:var(--grey);border-bottom:1px dashed var(--line);font-size:.96rem}
.checklist li::before{
  content:"";position:absolute;left:0;top:14px;width:16px;height:16px;
  background:linear-gradient(135deg,var(--red),var(--red-dark));
  clip-path:polygon(5px 0,100% 0,calc(100% - 5px) 100%,0 100%);
}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px}
.c-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.c-item .icon{flex:0 0 52px;width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,#1c1c1c,#000);display:grid;place-items:center}
.c-item .icon svg{width:24px;height:24px;fill:#fff}
.c-item h3{font-size:.95rem;margin-bottom:4px}
.c-item p,.c-item a{color:var(--grey);font-size:.95rem}
.c-item a:hover{color:var(--red)}
.map-wrap{border-radius:var(--rad);overflow:hidden;box-shadow:var(--shadow);margin-top:34px}
.map-wrap iframe{width:100%;height:320px;border:0;display:block}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:38px;box-shadow:var(--shadow)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;display:block;margin:16px 0 7px}
.form input,.form select,.form textarea{
  width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:9px;
  font-family:inherit;font-size:.95rem;background:var(--bg-soft);transition:border-color .2s;
}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--red);background:#fff}

/* ---------- footer ---------- */
footer{background:var(--black);color:#b6b6ba;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;left:-8%;bottom:-120%;width:18%;height:300%;background:var(--red);transform:rotate(24deg);opacity:.85}
.f-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:44px;padding:64px 0 44px;position:relative;z-index:1}
.f-logo-plate{background:#fff;border-radius:12px;padding:14px 20px;display:inline-block;margin-bottom:18px}
.f-logo-plate img{height:44px}
.f-grid h4{color:#fff;font-family:'Archivo Black',sans-serif;text-transform:uppercase;font-size:.9rem;letter-spacing:.12em;margin-bottom:18px}
.f-grid ul{list-style:none}
.f-grid li{margin-bottom:11px;font-size:.92rem}
.f-grid a:hover{color:var(--red-bright)}
.f-bottom{border-top:1px solid #222;padding:20px 0;font-size:.8rem;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
.f-bottom b{color:#fff}

/* ---------- floating WhatsApp ---------- */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:1500;width:60px;height:60px;border-radius:50%;
  background:var(--wa);display:grid;place-items:center;box-shadow:0 8px 26px rgba(37,211,102,.45);
  transition:transform .25s;
}
.wa-float:hover{transform:scale(1.1)}
.wa-float svg{width:32px;height:32px;fill:#fff}

/* ---------- reveal animations ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}
.reveal.d4{transition-delay:.4s}.reveal.d5{transition-delay:.5s}
.reveal.show{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1020px){
  .grid3,.gallery{grid-template-columns:repeat(2,1fr)}
  .values{grid-template-columns:repeat(3,1fr)}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .hero .container{grid-template-columns:1fr;padding:64px 0}
  .hero-card{max-width:440px}
  .about-grid,.contact-grid,.mv,.grid2{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .grid3,.gallery,.values{grid-template-columns:1fr}
  .navlinks{
    position:fixed;inset:78px 0 auto 0;background:#fff;flex-direction:column;gap:0;
    padding:12px 0 22px;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(0,0,0,.12);
    transform:translateY(-130%);transition:transform .35s;z-index:999;
  }
  .navlinks.open{transform:none}
  .navlinks li{width:100%;text-align:center}
  .navlinks a{display:block;padding:15px 0}
  .hamburger{display:block}
  .nav .btn{display:none}
  .form .row{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .topbar .tb-right{display:none}
}