/* ==========================================================================
   Universal Drilling Fluid — Design System
   Palette: deep rig teal + signal amber, on cool steel-paper background
   Type: Barlow Condensed (headings) / system sans (body) / ui-monospace (data)
   Motif: horizontal "strata" lines referencing geological drill-core layers
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700;800&display=swap');

:root{
  /* colour */
  --ink:#0F1A1F;
  --teal-900:#08343C;
  --teal-800:#0B4A54;
  --teal-700:#0E5C67;
  --teal-100:#E4EEEE;
  --amber:#E8940A;
  --amber-dark:#C97C05;
  --paper:#F1F3F0;
  --surface:#FFFFFF;
  --slate:#5B6B6E;
  --slate-light:#8B9A9C;
  --line:#DCE3DE;
  --line-strong:#C4CEC7;
  --success:#4C7A64;
  --whatsapp:#25D366;

  /* type */
  --font-display:'Barlow Condensed', 'Arial Narrow', sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,'SFMono-Regular','IBM Plex Mono',Menlo,Consolas,monospace;

  /* layout */
  --maxw:1180px;
  --radius:3px;
  --radius-lg:6px;
  --shadow-sm:0 1px 3px rgba(15,26,31,0.08);
  --shadow-md:0 8px 24px rgba(8,52,60,0.12);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
svg{width:20px;height:20px;flex-shrink:0;vertical-align:middle;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.08;margin:0 0 .5em;color:var(--teal-900);letter-spacing:.2px;}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:800;}
h2{font-size:clamp(1.6rem,3vw,2.3rem);}
h3{font-size:1.3rem;font-weight:700;}
p{margin:0 0 1em;max-width:68ch;color:#33454A;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

:focus-visible{outline:3px solid var(--amber);outline-offset:2px;}

/* strata motif — thin layered lines used as a section device (drill-core reference) */
.strata{
  background-image:
    repeating-linear-gradient(180deg, rgba(232,148,10,0.10) 0 2px, transparent 2px 34px),
    repeating-linear-gradient(180deg, rgba(8,52,60,0.06) 0 1px, transparent 1px 17px);
}
.strata-dark{
  background-image:
    repeating-linear-gradient(180deg, rgba(232,148,10,0.18) 0 2px, transparent 2px 34px),
    repeating-linear-gradient(180deg, rgba(255,255,255,0.05) 0 1px, transparent 1px 17px);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:.3px;
  padding:13px 26px;border-radius:var(--radius);border:2px solid transparent;
  cursor:pointer;transition:transform .15s ease, background-color .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-amber{background:var(--amber);color:var(--ink);}
.btn-amber:hover{background:var(--amber-dark);}
.btn-outline{background:transparent;color:var(--surface);border-color:rgba(255,255,255,.55);}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-teal{background:var(--teal-800);color:#fff;}
.btn-teal:hover{background:var(--teal-900);}
.btn-whatsapp{background:var(--whatsapp);color:#fff;}
.btn-whatsapp:hover{background:#1ebe57;}
.btn-sm{padding:9px 16px;font-size:.92rem;}
.btn svg{width:17px;height:17px;}
.btn-block{width:100%;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 24px;max-width:var(--maxw);margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:40px;height:40px;flex-shrink:0;}
.brand-text{font-family:var(--font-display);line-height:1;}
.brand-text .line1{display:block;font-size:1.28rem;font-weight:800;color:var(--teal-900);letter-spacing:.2px;}
.brand-text .line2{display:block;font-size:.72rem;font-weight:600;color:var(--amber-dark);letter-spacing:1.5px;margin-top:2px;}

.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav > ul{display:flex;align-items:center;gap:2px;}
.main-nav a.nav-link{display:block;padding:10px 14px;font-weight:600;font-size:.96rem;color:var(--ink);border-radius:var(--radius);}
.main-nav a.nav-link:hover{background:var(--teal-100);color:var(--teal-900);}
.main-nav li.has-mega{position:relative;}
.mega-panel{
  display:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-md);
  border-radius:var(--radius-lg);padding:18px;width:640px;z-index:80;
}
.mega-panel.countries-panel{width:420px;}
li.has-mega:hover .mega-panel, li.has-mega:focus-within .mega-panel{display:block;}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px 18px;}
.mega-grid a{display:block;padding:6px 4px;font-size:.9rem;color:#33454A;border-radius:3px;}
.mega-grid a:hover{color:var(--teal-800);background:var(--paper);}
.mega-panel .mega-foot{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.header-call{display:flex;flex-direction:column;font-size:.82rem;color:var(--slate);line-height:1.25;}
.header-call strong{font-family:var(--font-mono);font-size:1.02rem;color:var(--teal-900);}
.nav-toggle{display:none;background:none;border:2px solid var(--line-strong);border-radius:var(--radius);width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{content:"";display:block;width:20px;height:2px;background:var(--ink);position:relative;transition:.2s;}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{background:var(--surface);border-bottom:1px solid var(--line);}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:6px;padding:10px 0;font-size:.85rem;color:var(--slate);}
.breadcrumb a{color:var(--teal-800);font-weight:600;}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--slate-light);}

/* ---------- Hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,var(--teal-900),var(--teal-700));color:#fff;overflow:hidden;}
.hero-inner{max-width:var(--maxw);margin:0 auto;padding:56px 24px 68px;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;position:relative;z-index:2;}
.hero-eyebrow{display:inline-block;font-family:var(--font-mono);font-size:.8rem;color:#FFD48A;background:rgba(232,148,10,0.15);border:1px solid rgba(232,148,10,0.35);padding:5px 12px;border-radius:20px;margin-bottom:18px;}
.hero h1{color:#fff;margin-bottom:16px;}
.hero p.lead{color:#D7E4E3;font-size:1.12rem;max-width:52ch;}
.hero-stats{display:flex;gap:28px;margin:26px 0 30px;flex-wrap:wrap;}
.hero-stats .stat b{display:block;font-family:var(--font-display);font-size:2rem;color:var(--amber);line-height:1;}
.hero-stats .stat span{font-size:.82rem;color:#C7D6D5;}
.hero-cta-row{display:flex;gap:14px;flex-wrap:wrap;}

/* Inquiry card - shown front & center on hero */
.inquiry-card{background:var(--surface);color:var(--ink);border-radius:var(--radius-lg);padding:26px 26px 22px;box-shadow:var(--shadow-md);position:relative;z-index:2;}
.inquiry-card h3{font-size:1.35rem;margin-bottom:2px;}
.inquiry-card .sub{color:var(--slate);font-size:.88rem;margin-bottom:16px;}
.form-row{margin-bottom:12px;}
.form-row label{display:block;font-size:.78rem;font-weight:700;color:var(--slate);margin-bottom:5px;text-transform:uppercase;letter-spacing:.5px;}
.form-row input, .form-row select, .form-row textarea{
  width:100%;padding:11px 13px;border:1.5px solid var(--line-strong);border-radius:var(--radius);
  font-family:var(--font-body);font-size:.96rem;background:#FCFDFC;color:var(--ink);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{border-color:var(--teal-700);outline:none;}
.form-two{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.form-note{font-size:.76rem;color:var(--slate-light);margin-top:10px;text-align:center;}
.form-status{font-size:.85rem;margin-top:10px;padding:8px 10px;border-radius:3px;display:none;}
.form-status.show{display:block;}
.form-status.ok{background:#E7F3EC;color:var(--success);}
.form-status.err{background:#FBEAE7;color:#B3401F;}

/* ---------- Sections ---------- */
.section{padding:64px 0;}
.section-tight{padding:44px 0;}
.section-head{max-width:640px;margin-bottom:36px;}
.section-head .kicker{font-family:var(--font-mono);font-size:.8rem;color:var(--amber-dark);letter-spacing:.5px;display:block;margin-bottom:8px;}
.bg-white{background:var(--surface);}
.bg-teal{background:var(--teal-900);color:#fff;}
.bg-teal h2, .bg-teal h3{color:#fff;}
.bg-teal p{color:#CBDAD9;}

/* ---------- Value strip ---------- */
.value-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.value-item{padding:26px 24px;border-right:1px solid var(--line);}
.value-item:last-child{border-right:none;}
.value-item h4{font-family:var(--font-display);font-size:1.05rem;color:var(--teal-900);margin-bottom:6px;letter-spacing:.3px;}
.value-item p{font-size:.9rem;margin:0;}

/* ---------- Product grid ---------- */
.grid{display:grid;gap:22px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}

.card-product{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:border-color .15s ease, box-shadow .15s ease;}
.card-product:hover{border-color:var(--teal-700);box-shadow:var(--shadow-sm);}
.card-product .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--teal-100);}
.card-product .thumb img{width:100%;height:100%;object-fit:cover;}
.card-product .body{padding:16px 18px 18px;}
.card-product h3{font-size:1.12rem;margin-bottom:6px;}
.card-product p{font-size:.88rem;margin-bottom:12px;}
.card-product .more{font-size:.85rem;font-weight:700;color:var(--teal-800);display:inline-flex;align-items:center;gap:5px;}

/* Country cards - icon based, no photography needed */
.card-country{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;display:flex;flex-direction:column;gap:10px;}
.pin{width:44px;height:44px;border-radius:50%;background:var(--teal-100);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.pin svg{width:22px;height:22px;}
.card-country .region{font-family:var(--font-mono);font-size:.72rem;color:var(--amber-dark);text-transform:uppercase;letter-spacing:.5px;}
.card-country h3{margin:2px 0 4px;}
.card-country p{font-size:.88rem;}
.tag-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px;}
.tag{font-size:.74rem;background:var(--paper);border:1px solid var(--line);padding:4px 9px;border-radius:20px;color:var(--slate);}

/* ---------- Product detail layout ---------- */
.product-layout{display:grid;grid-template-columns:2.1fr 1fr;gap:15px;align-items:start;}
.product-hero-img{border-radius:var(--radius-lg);overflow:hidden;margin-bottom:26px;aspect-ratio:16/8;}
.product-hero-img img{width:100%;height:100%;object-fit:cover;}
.feature-chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 8px;}
.chip{font-size:.82rem;font-weight:600;background:var(--teal-100);color:var(--teal-900);padding:6px 12px;border-radius:20px;}
.app-list{margin-top:8px;}
.app-list li{position:relative;padding:8px 0 8px 26px;border-bottom:1px dashed var(--line);font-size:.96rem;color:#33454A;}
.app-list li:last-child{border-bottom:none;}
.app-list li::before{content:"";position:absolute;left:0;top:14px;width:9px;height:9px;background:var(--amber);border-radius:2px;}
blockquote{border-left:3px solid var(--amber);margin:22px 0;padding:4px 0 4px 18px;font-style:italic;color:var(--teal-900);font-size:1.05rem;}

.side-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;position:sticky;top:90px;}
.side-panel h4{font-size:1rem;margin-bottom:12px;}
.side-panel .quicklinks li{border-bottom:1px solid var(--line);}
.side-panel .quicklinks a{display:block;padding:10px 2px;font-size:.9rem;font-weight:600;color:var(--teal-800);}
.side-panel .quicklinks li.active a{color:var(--amber-dark);}
.side-panel .quicklinks a:hover{color:var(--amber-dark);}
.side-cta{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);}

.related-strip{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.related-strip a{font-size:.82rem;background:var(--paper);border:1px solid var(--line);padding:7px 12px;border-radius:20px;color:var(--teal-800);font-weight:600;}
.related-strip a:hover{border-color:var(--teal-700);}

/* ---------- Info boxes ---------- */
.info-boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.info-box{background:var(--surface);padding:26px;display:flex;gap:14px;align-items:flex-start;}
.info-box .ic{width:42px;height:42px;background:var(--teal-100);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.info-box .ic svg{width:20px;height:20px;color:var(--teal-800);}
.info-box h4{font-size:.95rem;margin-bottom:4px;letter-spacing:.3px;}
.info-box a, .info-box div.txt{font-size:.9rem;color:#33454A;}

/* ---------- Testimonials ---------- */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.testi-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;}
.testi-card p{font-size:.93rem;margin-bottom:16px;color:#33454A;}
.testi-who{display:flex;align-items:center;gap:12px;}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--teal-800);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;flex-shrink:0;}
.testi-who .name{font-weight:700;font-size:.92rem;color:var(--ink);}
.testi-who .role{font-size:.8rem;color:var(--slate);}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C7D2D3;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:40px;}
.footer-grid h4{color:#fff;font-family:var(--font-display);font-size:1.02rem;margin-bottom:14px;letter-spacing:.3px;}
.footer-grid p{color:#9FB0B1;font-size:.9rem;}
.footer-grid ul li{margin-bottom:9px;}
.footer-grid a{font-size:.9rem;color:#C7D2D3;}
.footer-grid a:hover{color:var(--amber);}
.footer-social{display:flex;gap:10px;margin-top:14px;}
.footer-social a{width:36px;height:36px;border:1px solid rgba(255,255,255,.2);border-radius:50%;display:flex;align-items:center;justify-content:center;}
.footer-social a:hover{border-color:var(--amber);color:var(--amber);}
.footer-links-strip{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:.82rem;color:#8598999a;}
.footer-links-strip a{color:#8FA0A1;margin-right:4px;}
.footer-links-strip a:hover{color:var(--amber);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem;color:#7E9091;}
.footer-bottom a{color:#7E9091;}

/* ---------- Floating action buttons ---------- */
.fab-stack{position:fixed;right:20px;bottom:22px;display:flex;flex-direction:column;gap:12px;z-index:70;}
.fab{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.22);}
.fab svg{width:26px;height:26px;}
.fab-whatsapp{background:var(--whatsapp);color:#fff;}
.fab-call{background:var(--amber);color:var(--ink);}

/* Mobile sticky action bar */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:65;background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -4px 14px rgba(0,0,0,.08);}
.mobile-bar-inner{display:grid;grid-template-columns:1fr 1fr 1fr;}
.mobile-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:9px 0;font-size:.72rem;font-weight:700;color:var(--ink);border-right:1px solid var(--line);}
.mobile-bar a:last-child{border-right:none;}
.mobile-bar a svg{width:20px;height:20px;}
.mobile-bar a.mb-whatsapp{color:var(--success);}
.mobile-bar a.mb-enquire{color:var(--amber-dark);}

/* ---------- Utility ---------- */
.center{text-align:center;margin-left:auto;margin-right:auto;}
.mt-0{margin-top:0;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.stat-band{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;padding:34px 0;}
.stat-band .stat{text-align:center;flex:1;min-width:130px;}
.stat-band .stat b{display:block;font-family:var(--font-display);font-size:2.4rem;color:var(--amber);}
.stat-band .stat span{font-size:.85rem;color:#C7D6D5;}
.faq-item{border-bottom:1px solid var(--line);padding:16px 0;}
.faq-item h4{font-size:1.02rem;margin-bottom:6px;color:var(--teal-900);}
.faq-item p{margin:0;font-size:.93rem;}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:980px){
  .main-nav, .header-call{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-sm-hide{display:none;}
  .hero-inner{grid-template-columns:1fr;}
  .product-layout{grid-template-columns:1fr;}
  .side-panel{position:static;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .value-strip, .info-boxes{grid-template-columns:1fr;}
  .value-item, .info-box{border-right:none;border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .testi-grid{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  body{padding-bottom:58px;}
  .mobile-bar{display:block;}
}
@media (max-width:600px){
  .grid-4, .grid-3, .grid-2{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .form-two{grid-template-columns:1fr;}
  .hero-inner{padding:36px 20px 48px;}
  .section{padding:44px 0;}
}

/* Mobile nav drawer */
.main-nav.mobile-open{
  display:block;position:fixed;top:65px;left:0;right:0;bottom:0;background:var(--surface);
  overflow-y:auto;padding:10px 20px 100px;z-index:59;
}
.main-nav.mobile-open > ul{flex-direction:column;align-items:stretch;}
.main-nav.mobile-open .mega-panel{display:block;position:static;width:auto;box-shadow:none;border:none;padding:6px 0 6px 14px;transform:none;}
.main-nav.mobile-open .mega-grid{grid-template-columns:1fr;}
.main-nav.mobile-open li.has-mega > a.nav-link::after{content:" ▾";}



.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-logo {
  width: 150px;
  height: auto;
  display: block;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-text .line1 {
  font-weight: 700;
  font-size: 20px;
  line-height: 1.1;
}

.brand-text .line2 {
  font-size: 10px;
  letter-spacing: 1px;
  margin-top: 4px;
}