/* ===========================================================
   OSMS GROUP — Design System
   Palette: graphite / rust-orange / industrial olive / warm paper
   Type: condensed industrial display + grotesque body + mono utility
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Barlow+Condensed:wght@500;600;700;800&family=Work+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --graphite: #1A1F26;
  --slate: #2B3440;
  --slate-light: #3D4856;
  --rust: #C8501A;
  --rust-dark: #A83F12;
  --olive: #7C9560;
  --olive-dark: #5E7349;
  --paper: #F5F3EE;
  --paper-dim: #E8E4DA;
  --paper-line: #D8D3C5;
  --ink: #1A1F26;
  --ink-soft: #4A4F58;
  --white: #FFFFFF;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-stamp: 'Archivo Black', sans-serif;
  --font-body: 'Work Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1240px;
  --radius: 2px;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }

.wrap{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Typography ---------- */

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.05;
  color: var(--graphite);
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:'';
  width: 22px;
  height: 2px;
  background: var(--rust);
  display:inline-block;
}
.eyebrow.on-dark{ color: #E8975F; }
.eyebrow.olive{ color: var(--olive); }
.eyebrow.olive::before{ background: var(--olive); }

.section-title{
  font-size: clamp(2rem, 4vw, 3rem);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-lede{
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 640px;
  font-weight: 400;
}

.mono-tag{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

/* ---------- Header / Nav ---------- */

.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--graphite);
  border-bottom: 3px solid var(--rust);
}

.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 76px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 12px;
}

.brand-mark{
  width: 40px;
  height: 40px;
  background: var(--rust);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family: var(--font-stamp);
  color: var(--graphite);
  font-size: 1.1rem;
  flex-shrink: 0;
  transform: rotate(0deg);
}

.brand-text{
  display:flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text .name{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--white);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.brand-text .tag{
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: #B8BEC8;
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav ul{
  display:flex;
  gap: 30px;
}

.main-nav a{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #C9CDD3;
  font-weight: 500;
  transition: color 0.2s;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a.active{
  color: var(--white);
  border-bottom-color: var(--rust);
}

.nav-toggle{
  display:none;
  background:none;
  border:none;
  color: var(--white);
  font-size: 1.6rem;
  cursor:pointer;
}

@media (max-width: 880px){
  .main-nav{
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--graphite);
    border-bottom: 3px solid var(--rust);
    transform: translateY(-110%);
    transition: transform 0.25s ease, visibility 0.25s;
    z-index: 99;
    visibility: hidden;
  }
  .main-nav.open{ transform: translateY(0); visibility: visible; }
  .main-nav ul{
    flex-direction: column;
    padding: 18px 28px 26px;
    gap: 18px;
  }
  .nav-toggle{ display:block; }
}

/* ---------- Buttons ---------- */

.btn{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 14px 26px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-rust{
  background: var(--rust);
  color: var(--white);
  border-color: var(--rust);
}
.btn-rust:hover{ background: var(--rust-dark); border-color: var(--rust-dark); }

.btn-outline-light{
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-light:hover{ border-color: var(--white); }

.btn-outline-dark{
  background: transparent;
  color: var(--graphite);
  border-color: var(--graphite);
}
.btn-outline-dark:hover{ background: var(--graphite); color: var(--white); }

.btn-olive{
  background: var(--olive);
  color: var(--white);
  border-color: var(--olive);
}
.btn-olive:hover{ background: var(--olive-dark); border-color: var(--olive-dark); }

/* ---------- Hero (manifest / weighbridge ticket motif) ---------- */

.hero{
  background: var(--graphite);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding: 88px 0 0;
}

.hero-grid-bg{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events:none;
}

.hero .wrap{
  position: relative;
  z-index: 2;
}

.hero-inner{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: end;
  padding-bottom: 60px;
}

@media (max-width: 880px){
  .hero-inner{
    grid-template-columns: 1fr;
    padding-bottom: 44px;
  }
}

.hero h1{
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 22px;
}

.hero h1 span{ color: var(--rust); }

.hero-sub{
  font-size: 1.1rem;
  color: #C9CDD3;
  max-width: 520px;
  margin-bottom: 30px;
}

.hero-cta{
  display:flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* manifest ticket card */
.manifest-card{
  background: var(--paper);
  color: var(--ink);
  padding: 26px 26px 20px;
  border: 1px solid var(--paper-line);
  position: relative;
}
.manifest-card::before{
  content: 'CERTIFIED MANIFEST';
  position:absolute;
  top: -11px;
  left: 26px;
  background: var(--rust);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  padding: 4px 10px;
}
.manifest-row{
  display:flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--paper-line);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.manifest-row:last-child{ border-bottom:none; }
.manifest-row .k{ color: var(--ink-soft); }
.manifest-row .v{ font-weight:600; }

/* ---------- Ledger marquee (signature element) ---------- */

.ledger-strip{
  background: var(--rust);
  border-top: 1px solid rgba(0,0,0,0.15);
  border-bottom: 1px solid rgba(0,0,0,0.15);
  overflow: hidden;
  white-space: nowrap;
  position: relative;
}

.ledger-track{
  display: inline-flex;
  animation: ledger-scroll 38s linear infinite;
}

.ledger-track span{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  padding: 12px 28px;
  display:inline-flex;
  align-items:center;
  gap: 10px;
  border-right: 1px solid rgba(255,255,255,0.3);
  font-weight: 600;
}

@keyframes ledger-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce){
  .ledger-track{ animation: none; }
}

/* ---------- Stat bar ---------- */

.stat-bar{
  background: var(--slate);
  color: var(--white);
  padding: 46px 0;
}

.stat-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat{
  border-left: 2px solid var(--rust);
  padding-left: 18px;
}

.stat .num{
  font-family: var(--font-stamp);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--white);
  display:block;
}

.stat .label{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #AEB4BC;
  margin-top: 6px;
}

@media (max-width: 780px){
  .stat-grid{ grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Sections ---------- */

.section{ padding: 90px 0; }
.section-dark{ background: var(--graphite); color: var(--white); }
.section-dark h2{ color: var(--white); }
.section-alt{ background: var(--paper-dim); }

.section-head{
  display:flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

/* ---------- Business cards (group overview) ---------- */

.biz-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--graphite);
}

.biz-card:nth-child(7){
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 40px;
  justify-content: space-between;
}
.biz-card:nth-child(7) > div:first-child{ flex: 1; }

@media (max-width: 700px){
  .biz-card:nth-child(7){ flex-direction: column; align-items: flex-start; }
}

.biz-card{
  background: var(--paper);
  padding: 38px 32px;
  position: relative;
  transition: background 0.25s;
}

.biz-card:hover{ background: var(--white); }

.biz-card .biz-no{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--rust);
  font-weight: 700;
  margin-bottom: 18px;
  display:block;
}

.biz-card h3{
  font-size: 1.5rem;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.biz-card p{
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.biz-card .biz-link{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--graphite);
  display:inline-flex;
  align-items:center;
  gap: 8px;
}
.biz-card .biz-link::after{ content:'→'; transition: transform 0.2s; }
.biz-card:hover .biz-link::after{ transform: translateX(4px); }

@media (max-width: 900px){
  .biz-grid{ grid-template-columns: 1fr; }
}

/* ---------- Material / service tags ---------- */

.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
}

.tag-pill{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 9px 16px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
}

.tag-pill.on-dark{
  border-color: rgba(255,255,255,0.3);
  color: var(--white);
}

/* ---------- Two column layout ---------- */

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

@media (max-width: 880px){
  .split{ grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- Process steps ---------- */

.process-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 2px solid var(--graphite);
  border-bottom: 2px solid var(--graphite);
}

.process-step{
  padding: 30px 26px;
  border-right: 1px solid var(--paper-line);
  position: relative;
}
.process-step:last-child{ border-right:none; }

.process-step .step-num{
  font-family: var(--font-stamp);
  font-size: 2.2rem;
  color: var(--paper-line);
  display:block;
  margin-bottom: 10px;
}

@media (max-width: 780px){
  .process-row{ grid-template-columns: 1fr; }
  .process-step{ border-right:none; border-bottom: 1px solid var(--paper-line); }
}

/* ---------- 5S Table ---------- */

.s5-table{
  width:100%;
  border-collapse: collapse;
}
.s5-table tr{ border-bottom: 1px solid var(--paper-line); }
.s5-table tr:last-child{ border-bottom: none; }
.s5-table td{ padding: 22px 18px; vertical-align: top; }

.s5-num{
  font-family: var(--font-stamp);
  font-size: 1.6rem;
  color: var(--rust);
  width: 70px;
}
.s5-name{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  text-transform: uppercase;
  width: 160px;
}
.s5-desc{ color: var(--ink-soft); font-size: 0.95rem; }

@media (max-width: 700px){
  .s5-table, .s5-table tbody, .s5-table tr, .s5-table td{ display:block; width:auto; }
  .s5-table tr{ padding: 18px 0; }
}

/* ---------- Client logos / list ---------- */

.client-strip{
  background: var(--paper-dim);
  padding: 40px 0;
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
}

.client-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--paper-line);
}

.client-name{
  background: var(--paper-dim);
  padding: 18px 16px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

/* ---------- Cards (services/certifications) ---------- */

.card-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

@media (max-width: 980px){ .card-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px){ .card-grid{ grid-template-columns: 1fr; } }

.info-card{
  background: var(--white);
  border: 1px solid var(--paper-line);
  padding: 28px 24px;
}

.info-card .icon-mark{
  width: 44px;
  height: 44px;
  background: var(--graphite);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom: 18px;
  color: var(--rust);
}

.info-card h4{
  font-size: 1.15rem;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.info-card p{
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* ---------- Facility / location table ---------- */

.facility-list{ display:flex; flex-direction:column; gap: 0; }
.facility-row{
  display:grid;
  grid-template-columns: 160px 1fr 140px;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--paper-line);
  align-items: baseline;
}
.facility-row .f-name{ font-family: var(--font-display); font-weight:700; text-transform:uppercase; font-size: 1.05rem; }
.facility-row .f-addr{ color: var(--ink-soft); font-size: 0.9rem; }
.facility-row .f-size{ font-family: var(--font-mono); color: var(--rust); font-size: 0.85rem; text-align:right; }

@media (max-width: 700px){
  .facility-row{ grid-template-columns: 1fr; gap: 6px; }
  .facility-row .f-size{ text-align:left; }
}

/* ---------- CTA band ---------- */

.cta-band{
  background: var(--rust);
  color: var(--white);
  padding: 70px 0;
}
.cta-band .wrap{
  display:flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2{ color: var(--white); font-size: clamp(1.6rem, 3.4vw, 2.4rem); max-width: 560px; }

/* ---------- Footer ---------- */

.site-footer{
  background: var(--graphite);
  color: #C9CDD3;
  padding: 60px 0 30px;
}

.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--slate-light);
}

.footer-grid h5{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 16px;
}

.footer-grid ul{ display:flex; flex-direction:column; gap: 10px; }
.footer-grid a{ font-size: 0.9rem; color: #C9CDD3; }
.footer-grid a:hover{ color: var(--white); }

.footer-bottom{
  display:flex;
  justify-content: space-between;
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: #7E8590;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 880px){
  .footer-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .footer-grid{ grid-template-columns: 1fr; }
}

/* ---------- Page header (sub-pages) ---------- */

.page-header{
  background: var(--graphite);
  color: var(--white);
  padding: 56px 0 50px;
  position: relative;
  overflow: hidden;
}

.page-header h1{
  color: var(--white);
  text-transform: uppercase;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
}

.breadcrumb{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9BA1AB;
  margin-bottom: 18px;
}
.breadcrumb a{ color: #C9CDD3; }
.breadcrumb a:hover{ color: var(--rust); }

/* ---------- Company badge (sub-brand identity strip) ---------- */

.subco-badge{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.25);
  margin-bottom: 20px;
}
.subco-badge .dot{ width:8px; height:8px; border-radius:50%; }

/* ---------- Utility ---------- */

.text-center{ text-align:center; margin-left:auto; margin-right:auto; }
.mt-40{ margin-top:40px; }
.divider{ height:1px; background: var(--paper-line); margin: 60px 0; }

/* content is visible by default; no JS-dependent opacity hiding */
.fade-up{ opacity:1; }

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