/* =========================================================
   K&K LOGISTICS SARLU — stylesheet
   ========================================================= */

:root{
  --navy: #0c2e59;
  --navy-dark: #081f3d;
  --navy-light: #163f74;
  --teal: #178288;
  --teal-light: #2ba9a6;
  --teal-pale: #e6f4f3;
  --bg: #f7f9fb;
  --bg-alt: #eef2f6;
  --card: #ffffff;
  --text: #182635;
  --text-muted: #59697b;
  --text-soft: #8493a3;
  --border: #dde4ea;
  --white: #ffffff;
  --shadow: 0 10px 30px -12px rgba(12,46,89,0.18);
  --shadow-sm: 0 4px 14px -6px rgba(12,46,89,0.15);
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1200px;
  --ff: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--ff);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }
.icon{ width:1em; height:1em; fill:none; stroke:currentColor; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; }
.sprite{ position:absolute; width:0; height:0; overflow:hidden; }

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- utility ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color: var(--teal);
}
.eyebrow::before{
  content:"";
  width:26px; height:2px;
  background: var(--teal);
  display:inline-block;
}
h2.section-title{
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  color: var(--navy);
  margin-top:10px;
  letter-spacing:-.01em;
}
.section-lead{
  max-width: 780px;
  color: var(--text-muted);
  font-size: 17px;
  margin-top:14px;
}
.section-head{ margin-bottom: 48px; }
.section-head.center{ text-align:center; margin-left:auto; margin-right:auto; }
.section-head.center .section-lead{ margin-left:auto; margin-right:auto; }
.section-head.center .eyebrow::before{ display:none; }

section{ padding: 96px 0; }
.section-alt{ background: var(--bg-alt); }
.section-navy{ background: linear-gradient(160deg, var(--navy-dark), var(--navy) 60%, var(--navy-light)); color:#fff; }

.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight:700;
  font-size:14.5px;
  letter-spacing:.02em;
  border: 2px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn .icon{ width:18px; height:18px; transition: transform .2s ease; }
.btn:hover .icon{ transform: translateX(3px); }
.btn-primary{ background: var(--teal); color:#fff; box-shadow: 0 12px 24px -10px rgba(23,130,136,.55); }
.btn-primary:hover{ background: var(--teal-light); transform: translateY(-2px); }
.btn-ghost{ background: rgba(255,255,255,.06); color:#fff; border-color: rgba(255,255,255,.35); }
.btn-ghost:hover{ background: rgba(255,255,255,.14); border-color:#fff; transform: translateY(-2px); }
.btn-outline-navy{ background:transparent; color:var(--navy); border-color: var(--navy); }
.btn-outline-navy:hover{ background:var(--navy); color:#fff; transform: translateY(-2px); }

.pill{
  display:inline-flex; align-items:center;
  padding:8px 16px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
}

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(247,249,251,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: background .3s ease;
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 78px;
}
.brand{ display:flex; align-items:center; height:100%; }
.brand img{ height: 42px; width:auto; }

.main-nav{ display:flex; align-items:center; gap: 4px; }
.main-nav a{
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--navy);
  border-radius: 8px;
  transition: background .2s ease, color .2s ease;
}
.main-nav a:hover{ background: var(--teal-pale); color: var(--teal); }

.header-cta{ display:flex; align-items:center; gap:14px; }
.nav-toggle{
  display:none;
  background:none; border:none;
  width:42px; height:42px;
  align-items:center; justify-content:center;
  color: var(--navy);
  border-radius:8px;
}
.nav-toggle .icon{ width:24px; height:24px; }
.nav-toggle:hover{ background: var(--teal-pale); }

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background: radial-gradient(1100px 600px at 85% -10%, rgba(43,169,166,.35), transparent 60%),
              linear-gradient(160deg, var(--navy-dark) 0%, var(--navy) 55%, var(--navy-light) 100%);
  color:#fff;
  padding: 84px 0 96px;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items:center;
}
.hero-bg-pattern{
  position:absolute; inset:0;
  opacity:.14;
  background-image: radial-gradient(circle, rgba(255,255,255,.7) 1px, transparent 1.6px);
  background-size: 26px 26px;
  z-index:1;
  mask-image: linear-gradient(180deg, black, transparent 85%);
}

/* ---------- hero background slideshow ---------- */
.hero-slider{
  position:absolute; inset:0;
  z-index:0;
  overflow:hidden;
}
.hero-slide{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  opacity:0;
  transform: scale(1.08);
  transition: opacity 1.8s ease, transform 7s ease;
  will-change: opacity, transform;
}
.hero-slide.active{
  opacity:1;
  transform: scale(1);
  transition: opacity 1.8s ease, transform 7s linear;
}
.hero-slider::after{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(43,169,166,.22), transparent 60%),
    linear-gradient(115deg, rgba(8,31,61,.92) 0%, rgba(8,31,61,.8) 30%, rgba(12,46,89,.62) 60%, rgba(12,46,89,.48) 100%);
}
.hero-dots{
  position:relative; z-index:2;
  display:flex; justify-content:center; gap:10px;
  margin-top: 54px;
}
.hero-dot{
  width:9px; height:9px; border-radius:999px;
  background: rgba(255,255,255,.32);
  border: none; padding:0;
  transition: width .3s ease, background .3s ease;
}
.hero-dot:hover{ background: rgba(255,255,255,.55); }
.hero-dot.active{ width:26px; background: var(--teal-light); }

@media (prefers-reduced-motion: reduce){
  .hero-slide{ transition: opacity 1s ease; transform:none; }
  .hero-slide.active{ transform:none; }
}
.hero-badges{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-bottom: 24px;
}
.hero-badges .pill{
  background: rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.28);
  color: #eaf6f6;
}
.hero h1{
  font-size: clamp(34px, 4.6vw, 54px);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.01em;
}
.hero h1 span{ color: var(--teal-light); }
.hero .tagline{
  margin-top:16px;
  font-size: 15px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color: var(--teal-light);
}
.hero p.lede{
  margin-top: 20px;
  font-size: 18px;
  color: rgba(255,255,255,.82);
  max-width: 560px;
}
.hero-ctas{ display:flex; flex-wrap:wrap; gap:14px; margin-top:34px; }
.hero-strip{
  margin-top: 46px;
  display:flex; flex-wrap:wrap;
  gap: 10px;
}
.hero-strip span{
  font-size:12.5px; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  color: rgba(255,255,255,.6);
  padding: 8px 0;
}
.hero-strip strong{ color:#fff; }
.hero-strip .divider{ color: rgba(255,255,255,.3); padding: 8px 4px; }

.hero-art{ position:relative; z-index:2; }
.hero-art-card{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(6px);
}
.hero-art-card svg{ width:100%; height:auto; display:block; }
.drc-map-img{
  width:100%; max-width:320px; height:auto;
  margin: 0 auto; display:block;
  filter: drop-shadow(0 16px 28px rgba(0,0,0,.4));
}
.hero-stats{
  display:grid; grid-template-columns: repeat(3,1fr);
  gap: 14px; margin-top:22px;
}
.hero-stat{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 12px;
  padding: 14px 12px;
  text-align:center;
}
.hero-stat b{ display:block; font-size:22px; color: var(--teal-light); }
.hero-stat span{ font-size:11.5px; color: rgba(255,255,255,.65); letter-spacing:.04em; }

/* ---------- overview ---------- */
.overview-grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items:start;
}
.overview-text p{ color: var(--text-muted); font-size:16px; margin-bottom:16px; }
.overview-text p:last-child{ margin-bottom:0; }

.footprint-card{
  background: var(--navy);
  color:#fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}
.footprint-card h4{ font-size:13px; letter-spacing:.1em; text-transform:uppercase; color: var(--teal-light); margin-bottom:6px; }
.footprint-row{ display:flex; align-items:flex-start; gap:12px; padding: 14px 0; border-top:1px solid rgba(255,255,255,.14); }
.footprint-row:first-of-type{ border-top:none; }
.footprint-row .icon{ width:20px; height:20px; color: var(--teal-light); margin-top:2px; flex-shrink:0; }
.footprint-row b{ display:block; font-size:14.5px; }
.footprint-row span{ font-size:13.5px; color: rgba(255,255,255,.68); }

.pvm-grid{
  margin-top: 56px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.pvm-card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.pvm-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow); }
.pvm-card .tag{ font-size:12px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; color: var(--teal); }
.pvm-card h3{ margin-top:10px; font-size:19px; color:var(--navy); font-weight:800; }
.pvm-card p{ margin-top:10px; font-size:14.5px; color: var(--text-muted); }

/* ---------- cards / grids ---------- */
.card-grid{ display:grid; gap:22px; }
.card-grid.cols-5{ grid-template-columns: repeat(5, 1fr); }
.card-grid.cols-4{ grid-template-columns: repeat(4, 1fr); }
.card-grid.cols-3{ grid-template-columns: repeat(3, 1fr); }
.card-grid.cols-2{ grid-template-columns: repeat(2, 1fr); }

.service-card{
  background: var(--card);
  border-radius: var(--radius);
  padding: 26px 22px;
  border: 1px solid var(--border);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position:relative;
}
.service-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.service-num{
  position:absolute; top:20px; right:22px;
  font-size:12px; font-weight:800; color: var(--text-soft);
}
.icon-badge{
  width:52px; height:52px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  background: var(--teal-pale);
  color: var(--teal);
  margin-bottom:18px;
}
.icon-badge .icon{ width:26px; height:26px; }
.icon-badge.navy{ background: rgba(12,46,89,.08); color: var(--navy); }
.service-card h3{ font-size:16.5px; font-weight:800; color: var(--navy); margin-bottom:8px; }
.service-card p{ font-size:14px; color: var(--text-muted); }

/* supply cards */
.supply-card{
  background: var(--card);
  border-radius: var(--radius);
  padding: 26px;
  border:1px solid var(--border);
}
.supply-card .icon-badge{ background: var(--navy); color:#fff; }
.supply-card h3{ font-size: 16.5px; font-weight:800; color:var(--navy); margin-bottom:14px; }
.supply-card ul li{
  display:flex; gap:10px; align-items:flex-start;
  font-size:14px; color: var(--text-muted);
  padding: 7px 0;
}
.supply-card ul li .icon{ width:16px; height:16px; color: var(--teal); flex-shrink:0; margin-top:3px; }
.principle-banner{
  margin-top: 34px;
  background: var(--teal-pale);
  border: 1px solid #cfe9e7;
  border-radius: var(--radius);
  padding: 22px 26px;
  display:flex; gap:16px; align-items:flex-start;
}
.principle-banner .icon{ width:24px; height:24px; color: var(--teal); flex-shrink:0; margin-top:2px; }
.principle-banner b{ color: var(--navy); display:block; margin-bottom:4px; font-size:14.5px; letter-spacing:.04em; text-transform:uppercase; }
.principle-banner p{ font-size:14.5px; color: var(--text-muted); }

/* ---------- machinery ---------- */
.machinery-layout{ display:grid; grid-template-columns: .8fr 1.2fr; gap:48px; align-items:start; }
.machinery-art{
  background: var(--navy);
  border-radius: var(--radius);
  padding: 34px;
  position:sticky; top:100px;
}
.machinery-art svg{ width:100%; height:auto; }
.machinery-art p{ color: rgba(255,255,255,.75); font-size:14px; margin-top:18px; }
.machinery-art ul{ margin-top:18px; }
.machinery-art ul li{
  display:flex; gap:10px; font-size:13.5px; color:#fff; padding:9px 0; border-top:1px solid rgba(255,255,255,.14);
}
.machinery-art ul li:first-child{ border-top:none; }
.machinery-art ul li .icon{ width:16px; height:16px; color: var(--teal-light); margin-top:2px; flex-shrink:0; }

.eq-table{ width:100%; border-collapse:separate; border-spacing:0; background:var(--card); border-radius: var(--radius); overflow:hidden; border:1px solid var(--border); }
.eq-table th{
  text-align:left; font-size:12px; letter-spacing:.09em; text-transform:uppercase;
  background: var(--navy); color:#fff; padding: 14px 18px;
}
.eq-table td{ padding: 15px 18px; font-size:14.5px; border-top:1px solid var(--border); vertical-align:middle; }
.eq-table tr:hover td{ background: var(--bg-alt); }
.eq-row-name{ display:flex; align-items:center; gap:12px; font-weight:700; color: var(--navy); }
.eq-row-name .icon{ width:20px; height:20px; color: var(--teal); flex-shrink:0; }
.eq-table td.app{ color: var(--text-muted); }

/* ---------- sectors ---------- */
.sector-list{ display:grid; grid-template-columns: repeat(5,1fr); gap:18px; }
.sector-item{
  background:var(--card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 24px 18px; text-align:center;
  transition: transform .25s ease, box-shadow .25s ease;
}
.sector-item:hover{ transform: translateY(-5px); box-shadow: var(--shadow-sm); }
.sector-item .icon-badge{ margin: 0 auto 14px; }
.sector-item h4{ font-size:14.5px; font-weight:800; color:var(--navy); margin-bottom:6px; }
.sector-item p{ font-size:12.5px; color: var(--text-muted); }

.presence-wrap{ margin-top: 64px; }
.corridor-diagram{
  background: var(--card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 40px 30px 30px;
  margin-bottom: 30px;
}
.corridor-row{ display:flex; align-items:center; margin-bottom: 34px; }
.corridor-row:last-child{ margin-bottom:0; }
.corridor-label{ width:150px; flex-shrink:0; }
.corridor-label b{ display:block; font-size:13px; letter-spacing:.06em; text-transform:uppercase; color:var(--navy); }
.corridor-label span{ font-size:12px; color:var(--text-soft); }
.corridor-track{ flex:1; position:relative; display:flex; justify-content:space-between; align-items:center; height:70px; }
.corridor-track::before{
  content:""; position:absolute; left:16px; right:16px; top:50%; height:2px;
  background: repeating-linear-gradient(90deg, var(--teal) 0 8px, transparent 8px 14px);
}
.corridor-node{ position:relative; z-index:2; display:flex; flex-direction:column; align-items:center; gap:8px; }
.corridor-dot{
  width:34px; height:34px; border-radius:50%;
  background: var(--navy); color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 0 0 6px var(--card);
}
.corridor-dot .icon{ width:16px; height:16px; }
.corridor-node span{ font-size:12px; font-weight:700; color:var(--navy); white-space:nowrap; }
.corridor-track.mining::before{ background: repeating-linear-gradient(90deg, var(--navy-light) 0 8px, transparent 8px 14px); }

.presence-table{ width:100%; border-collapse:separate; border-spacing:0 10px; }
.presence-table td{ background:var(--card); padding:16px 20px; border:1px solid var(--border); }
.presence-table tr td:first-child{ border-radius: 10px 0 0 10px; border-right:none; font-weight:800; color:var(--navy); width:180px; }
.presence-table tr td:last-child{ border-radius: 0 10px 10px 0; border-left:none; color: var(--text-muted); font-size:14.5px; }

/* ---------- process ---------- */
.process-track{ display:grid; grid-template-columns: repeat(5,1fr); gap:20px; position:relative; }
.process-track::before{
  content:""; position:absolute; top:34px; left:8%; right:8%; height:2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 14px);
  z-index:0;
}
.process-step{ position:relative; z-index:1; text-align:center; }
.process-num{
  width:68px; height:68px; border-radius:50%;
  background: var(--card); border:2px solid var(--teal);
  color: var(--navy);
  display:flex; align-items:center; justify-content:center;
  margin: 0 auto 18px;
  box-shadow: var(--shadow-sm);
}
.process-num .icon{ width:28px; height:28px; color: var(--teal); }
.process-step h4{ font-size:14.5px; font-weight:800; letter-spacing:.05em; text-transform:uppercase; color:var(--navy); margin-bottom:8px; }
.process-step p{ font-size:13.5px; color: var(--text-muted); padding: 0 6px; }

.priorities-wrap{
  margin-top: 64px;
  background: var(--navy);
  border-radius: var(--radius);
  padding: 40px;
  color:#fff;
  display:grid; grid-template-columns: .8fr 1.2fr; gap:36px; align-items:center;
}
.priorities-wrap h3{ font-size:22px; font-weight:800; }
.priorities-wrap p{ margin-top:10px; color: rgba(255,255,255,.7); font-size:14.5px; }
.priorities-list{ display:grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; }
.priorities-list li{ display:flex; gap:12px; align-items:flex-start; font-size:14.5px; }
.priorities-list li .icon{ width:19px; height:19px; color: var(--teal-light); flex-shrink:0; margin-top:2px; }

/* ---------- HSE ---------- */
.hse-grid{ display:grid; grid-template-columns: repeat(5,1fr); gap:18px; }
.hse-card{
  background: var(--card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 24px 20px;
}
.hse-card .icon-badge{ background: var(--navy); color:#fff; width:46px; height:46px; border-radius:12px; margin-bottom:14px; }
.hse-card .icon-badge .icon{ width:22px; height:22px; }
.hse-card h4{ font-size:13.5px; font-weight:800; letter-spacing:.04em; color:var(--navy); margin-bottom:8px; }
.hse-card p{ font-size:13px; color: var(--text-muted); }

.values-grid{ margin-top:64px; display:grid; grid-template-columns: repeat(5,1fr); gap:18px; }
.value-item{ text-align:center; padding: 10px; }
.value-item .icon-badge{ margin:0 auto 14px; background: var(--teal-pale); color: var(--teal); }
.value-item h4{ font-size:14px; font-weight:800; color:var(--navy); letter-spacing:.04em; margin-bottom:6px; }
.value-item p{ font-size:13px; color: var(--text-muted); }

/* ---------- why ---------- */
.why-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; }
.why-card{
  background: var(--card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 28px; display:flex; gap:16px;
}
.why-card .icon-badge{ flex-shrink:0; }
.why-card h3{ font-size:15.5px; font-weight:800; color:var(--navy); margin-bottom:8px; }
.why-card p{ font-size:13.8px; color: var(--text-muted); }

/* ---------- CTA / contact ---------- */
.cta-section{ position:relative; overflow:hidden; text-align:center; padding: 110px 0; }
.cta-section h2{ font-size: clamp(28px,4vw,42px); font-weight:800; }
.cta-section p{ max-width:640px; margin: 18px auto 0; color: rgba(255,255,255,.78); font-size:17px; }
.cta-section .hero-ctas{ justify-content:center; margin-top:38px; }

.contact-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; margin-top:64px; }
.contact-card{
  background: rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.16);
  border-radius: var(--radius); padding:26px; text-align:left;
}
.contact-card .icon-badge{ background: rgba(255,255,255,.1); color: var(--teal-light); }
.contact-card h4{ font-size:13px; letter-spacing:.08em; text-transform:uppercase; color: rgba(255,255,255,.6); margin-bottom:8px; }
.contact-card p{ font-size:15px; color:#fff; font-weight:600; }
.contact-card span.note{ display:block; margin-top:6px; font-size:12.5px; font-weight:400; color: rgba(255,255,255,.5); }
.offices-strip{
  margin-top: 40px; display:flex; flex-wrap:wrap; justify-content:center; gap:10px;
}
.offices-strip .pill{ background: rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.22); color:#fff; }

/* ---------- footer ---------- */
.site-footer{ background: var(--navy-dark); color: rgba(255,255,255,.65); padding: 46px 0 26px; }
.footer-top{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:20px; padding-bottom:28px; border-bottom:1px solid rgba(255,255,255,.12); }
.footer-brand{ display:flex; align-items:center; gap:12px; }
.footer-brand img{ height:34px; filter: brightness(0) invert(1); opacity:.92; }
.footer-nav{ display:flex; flex-wrap:wrap; gap: 22px; }
.footer-nav a{ font-size:13.5px; color: rgba(255,255,255,.65); }
.footer-nav a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; padding-top:22px; font-size:12.5px; }
.footer-bottom .tag{ letter-spacing:.06em; text-transform:uppercase; color: rgba(255,255,255,.4); }

.back-to-top{
  position:fixed; right:24px; bottom:24px; z-index:90;
  width:46px; height:46px; border-radius:50%;
  background: var(--navy); color:#fff; border:none;
  display:flex; align-items:center; justify-content:center;
  box-shadow: var(--shadow);
  opacity:0; pointer-events:none; transform: translateY(10px);
  transition: opacity .3s ease, transform .3s ease, background .2s ease;
}
.back-to-top.show{ opacity:1; pointer-events:auto; transform:none; }
.back-to-top:hover{ background: var(--teal); }
.back-to-top .icon{ width:20px; height:20px; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1080px){
  .card-grid.cols-5{ grid-template-columns: repeat(3,1fr); }
  .card-grid.cols-4{ grid-template-columns: repeat(2,1fr); }
  .sector-list{ grid-template-columns: repeat(3,1fr); }
  .hse-grid{ grid-template-columns: repeat(3,1fr); }
  .values-grid{ grid-template-columns: repeat(3,1fr); }
  .process-track{ grid-template-columns: repeat(3,1fr); row-gap:44px; }
  .process-track::before{ display:none; }
  .why-grid{ grid-template-columns: repeat(2,1fr); }
  .machinery-art{ position:static; }
}

@media (max-width: 900px){
  .main-nav{ display:none; }
  .nav-toggle{ display:flex; }
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-art{ order:-1; max-width:460px; margin:0 auto; }
  .overview-grid{ grid-template-columns:1fr; }
  .pvm-grid{ grid-template-columns:1fr; }
  .machinery-layout{ grid-template-columns:1fr; }
  .priorities-wrap{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  section{ padding: 72px 0; }
}

@media (max-width: 640px){
  .card-grid.cols-5, .card-grid.cols-4, .card-grid.cols-3, .card-grid.cols-2{ grid-template-columns:1fr; }
  .sector-list{ grid-template-columns: repeat(2,1fr); }
  .hse-grid{ grid-template-columns: repeat(2,1fr); }
  .values-grid{ grid-template-columns: repeat(2,1fr); }
  .process-track{ grid-template-columns: 1fr; }
  .why-grid{ grid-template-columns:1fr; }
  .hero-stats{ grid-template-columns: 1fr; }
  .corridor-row{ flex-direction:column; align-items:flex-start; gap:16px; }
  .corridor-label{ width:auto; }
  .corridor-track{ width:100%; }
  .priorities-list{ grid-template-columns:1fr; }
  .footer-top, .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .eq-table{ display:block; overflow-x:auto; white-space:nowrap; }
}

/* Mobile nav panel */
.mobile-nav{
  position:fixed; inset:0 0 0 auto; width:min(86vw,340px);
  background: var(--navy); color:#fff;
  z-index: 200; padding: 26px 26px 40px;
  transform: translateX(100%);
  transition: transform .32s ease;
  display:flex; flex-direction:column; gap:6px;
  overflow-y:auto;
}
.mobile-nav.open{ transform:none; }
.mobile-nav-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom: 20px; }
.mobile-nav-head img{ height:32px; filter: brightness(0) invert(1); }
.mobile-nav-close{ background:rgba(255,255,255,.08); border:none; color:#fff; width:38px; height:38px; border-radius:50%; display:flex; align-items:center; justify-content:center; }
.mobile-nav-close .icon{ width:20px; height:20px; }
.mobile-nav a{ padding: 13px 6px; font-size:16px; font-weight:600; border-bottom: 1px solid rgba(255,255,255,.1); }
.nav-scrim{
  position:fixed; inset:0; background: rgba(8,31,61,.55); z-index:190;
  opacity:0; pointer-events:none; transition: opacity .3s ease;
}
.nav-scrim.show{ opacity:1; pointer-events:auto; }