/* ============================================================
   STALION-PRIMI — site stylesheet
   Palette: petroleum navy / steel paper / high-vis orange
   Type:   Archivo (display + body), IBM Plex Mono (utility)
   ============================================================ */

:root{
  --navy:      #0B1F2E;
  --navy-deep: #071620;
  --ink:       #13232F;
  --steel:     #5F7280;
  --paper:     #F4F6F7;
  --white:     #FFFFFF;
  --line:      #D8DFE3;
  --line-dark: rgba(255,255,255,.14);
  --hivis:     #E8641C;
  --hivis-dk:  #C94F0E;

  --font-sans: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

  --wrap: 1180px;
  --pad: clamp(20px, 5vw, 56px);
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation:none !important; transition:none !important; }
}

body{
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.65;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}

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

.wrap{ max-width:var(--wrap); margin:0 auto; padding-left:var(--pad); padding-right:var(--pad); }

/* ---------- utility type ---------- */
.mono{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-weight:500;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--hivis);
  display:flex; align-items:center; gap:12px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:""; width:34px; height:2px; background:var(--hivis); flex:0 0 auto;
}
h1,h2,h3{ font-weight:800; letter-spacing:-.015em; line-height:1.08; }
h1{ font-size:clamp(2.4rem, 5.6vw, 4.3rem); }
h2{ font-size:clamp(1.7rem, 3.4vw, 2.6rem); }
h3{ font-size:1.25rem; letter-spacing:-.005em; }
.lede{ font-size:clamp(1.02rem, 1.5vw, 1.2rem); color:var(--steel); max-width:62ch; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-weight:700; font-size:.95rem; letter-spacing:.01em;
  padding:14px 26px; border:2px solid transparent;
  transition:background .18s ease, color .18s ease, border-color .18s ease;
}
.btn-solid{ background:var(--hivis); color:#fff; }
.btn-solid:hover{ background:var(--hivis-dk); }
.btn-ghost{ border-color:rgba(255,255,255,.4); color:#fff; }
.btn-ghost:hover{ border-color:#fff; }
.btn-ghost-dark{ border-color:var(--ink); color:var(--ink); }
.btn-ghost-dark:hover{ background:var(--ink); color:#fff; }
.btn .arrow{ transition:transform .18s ease; }
.btn:hover .arrow{ transform:translateX(4px); }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(11,31,46,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  height:74px;
}
.brand{ display:flex; align-items:center; gap:12px; color:#fff; }
.brand img{ height:40px; width:auto; }
.brand-name{ font-weight:800; letter-spacing:.09em; font-size:.98rem; }
.brand-name span{ color:var(--hivis); }
.nav-links{ display:flex; gap:34px; align-items:center; }
.nav-links a{
  color:rgba(255,255,255,.78); font-weight:600; font-size:.93rem;
  padding:6px 0; border-bottom:2px solid transparent;
  transition:color .15s ease, border-color .15s ease;
}
.nav-links a:hover{ color:#fff; }
.nav-links a.active{ color:#fff; border-color:var(--hivis); }
.nav-cta{ display:flex; align-items:center; gap:18px; }
.nav-cta .btn{ padding:10px 20px; font-size:.88rem; }

.nav-toggle{
  display:none; background:none; border:0; cursor:pointer;
  width:44px; height:44px; position:relative;
}
.nav-toggle span{
  position:absolute; left:10px; right:10px; height:2px; background:#fff;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span:nth-child(1){ top:15px; }
.nav-toggle span:nth-child(2){ top:22px; }
.nav-toggle span:nth-child(3){ top:29px; }
.nav-open .nav-toggle span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2){ opacity:0; }
.nav-open .nav-toggle span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

@media (max-width: 880px){
  .nav-links, .nav-cta .btn{ display:none; }
  .nav-toggle{ display:block; }
  .mobile-menu{
    display:none;
    background:var(--navy-deep);
    border-top:1px solid var(--line-dark);
  }
  .nav-open .mobile-menu{ display:block; }
  .mobile-menu a{
    display:block; color:#fff; font-weight:700; font-size:1.05rem;
    padding:18px var(--pad); border-bottom:1px solid var(--line-dark);
  }
  .mobile-menu a.active{ color:var(--hivis); }
}
@media (min-width: 881px){ .mobile-menu{ display:none !important; } }

/* ---------- hero ---------- */
.hero{
  position:relative; background:var(--navy); color:#fff;
  overflow:hidden;
}
.hero-media{ position:absolute; inset:0; }
.hero-media img{
  width:100%; height:100%; object-fit:cover; opacity:0;
  position:absolute; inset:0;
  transition:opacity 1.4s ease;
}
.hero-media img.on{ opacity:.55; }
.hero::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(7,22,32,.55) 0%, rgba(7,22,32,.35) 45%, rgba(7,22,32,.92) 100%);
  pointer-events:none;
}
.hero-inner{
  position:relative; z-index:2;
  padding:clamp(90px, 14vh, 170px) 0 clamp(56px, 8vh, 96px);
}
.hero h1{ max-width:14ch; margin-bottom:22px; }
.hero h1 em{ font-style:normal; color:var(--hivis); }
.hero .lede{ color:rgba(255,255,255,.82); margin-bottom:36px; }
.hero-ctas{ display:flex; gap:16px; flex-wrap:wrap; }

/* title-block stats strip (engineering drawing motif) */
.titleblock{
  position:relative; z-index:2;
  border-top:1px solid var(--line-dark);
  background:rgba(7,22,32,.72);
  backdrop-filter:blur(6px);
}
.titleblock-grid{
  display:grid; grid-template-columns:repeat(4, 1fr);
}
.tb-cell{
  padding:22px 26px;
  border-left:1px solid var(--line-dark);
}
.tb-cell:first-child{ border-left:0; }
.tb-num{
  font-weight:800; font-size:clamp(1.6rem, 2.6vw, 2.2rem);
  letter-spacing:-.01em; line-height:1;
}
.tb-num sup{ color:var(--hivis); font-size:.6em; top:-.5em; }
.tb-label{
  font-family:var(--font-mono); font-size:11px; letter-spacing:.14em;
  text-transform:uppercase; color:rgba(255,255,255,.62); margin-top:8px;
}
@media (max-width: 760px){
  .titleblock-grid{ grid-template-columns:repeat(2, 1fr); }
  .tb-cell:nth-child(3){ border-left:0; border-top:1px solid var(--line-dark); }
  .tb-cell:nth-child(4){ border-top:1px solid var(--line-dark); }
}

/* ---------- section scaffolding ---------- */
.section{ padding:clamp(64px, 9vw, 110px) 0; }
.section-dark{ background:var(--navy); color:#fff; }
.section-paper{ background:var(--paper); }
.section-head{ margin-bottom:clamp(34px, 5vw, 56px); }
.section-head h2{ max-width:24ch; }
.section-head .row{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:24px; flex-wrap:wrap;
}

/* drawing-sheet frame: mono doc code at section corners */
.sheetcode{
  font-family:var(--font-mono); font-size:11px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--steel);
}
.section-dark .sheetcode{ color:rgba(255,255,255,.5); }

/* ---------- split (image + text) ---------- */
.split{
  display:grid; grid-template-columns:1.05fr .95fr;
  gap:clamp(32px, 5vw, 72px); align-items:center;
}
.split.rev{ grid-template-columns:.95fr 1.05fr; }
.split-media{ position:relative; }
.split-media img{
  width:100%; height:100%; object-fit:cover; aspect-ratio:4/3;
}
.split-media::after{
  content:""; position:absolute; left:-12px; bottom:-12px;
  width:56%; height:10px; background:var(--hivis);
}
.split-body p{ margin-bottom:18px; color:var(--steel); }
.section-dark .split-body p{ color:rgba(255,255,255,.78); }
@media (max-width: 860px){
  .split, .split.rev{ grid-template-columns:1fr; }
}

/* ---------- services grid ---------- */
.svc-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));
  border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.svc-card{
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:32px 28px 28px; background:#fff; position:relative;
  display:flex; flex-direction:column; gap:14px;
  transition:background .18s ease;
}
.svc-card:hover{ background:var(--paper); }
.svc-card:hover .svc-code{ color:var(--hivis); }
.svc-code{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.14em;
  color:var(--steel); transition:color .18s ease;
}
.svc-card h3{ margin-top:2px; }
.svc-card p{ color:var(--steel); font-size:.95rem; flex:1; }
.svc-card .more{
  font-weight:700; font-size:.9rem; color:var(--ink);
  display:inline-flex; gap:8px; align-items:center;
}
.svc-card .more .arrow{ color:var(--hivis); transition:transform .18s ease; }
.svc-card:hover .more .arrow{ transform:translateX(4px); }

/* ---------- HSE band ---------- */
.hse{
  background:var(--navy-deep); color:#fff; position:relative; overflow:hidden;
}
.hse::before{
  content:"";
  position:absolute; inset:0 0 auto 0; height:10px;
  background:repeating-linear-gradient(-45deg, var(--hivis) 0 18px, var(--navy-deep) 18px 36px);
}
.hse-grid{
  display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(32px, 5vw, 72px);
}
.hse-points{ display:grid; gap:0; border-top:1px solid var(--line-dark); }
.hse-point{
  display:grid; grid-template-columns:56px 1fr; gap:16px;
  padding:20px 0; border-bottom:1px solid var(--line-dark);
}
.hse-point .mono{ color:var(--hivis); padding-top:4px; }
.hse-point h3{ font-size:1.05rem; margin-bottom:6px; }
.hse-point p{ color:rgba(255,255,255,.72); font-size:.94rem; }
@media (max-width:860px){ .hse-grid{ grid-template-columns:1fr; } }

/* ---------- quote ---------- */
.quote{
  max-width:840px; margin:0 auto; text-align:center;
}
.quote blockquote{
  font-size:clamp(1.3rem, 2.6vw, 1.9rem); font-weight:700;
  letter-spacing:-.01em; line-height:1.35;
}
.quote blockquote::before{ content:"“"; color:var(--hivis); }
.quote blockquote::after{ content:"”"; color:var(--hivis); }
.quote figcaption{ margin-top:20px; }

/* ---------- clients ---------- */
.clients-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(170px, 1fr));
  border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.client{
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:30px 16px; text-align:center;
  font-weight:800; letter-spacing:.08em; font-size:.92rem; color:var(--steel);
  background:#fff; transition:color .18s ease;
}
.client:hover{ color:var(--ink); }

/* ---------- photo strip ---------- */
.strip{ display:grid; grid-template-columns:repeat(4,1fr); gap:8px; }
.strip img{ aspect-ratio:1/1; object-fit:cover; width:100%; }
@media (max-width:700px){ .strip{ grid-template-columns:repeat(2,1fr); } }

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--hivis); color:#fff;
}
.cta-band .wrap{
  display:flex; align-items:center; justify-content:space-between;
  gap:24px; flex-wrap:wrap; padding-top:56px; padding-bottom:56px;
}
.cta-band h2{ max-width:22ch; }
.cta-band .btn{ background:var(--navy-deep); color:#fff; }
.cta-band .btn:hover{ background:#000; }

/* ---------- values ---------- */
.values-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(230px,1fr));
  gap:0; border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.value{
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:26px 24px; background:#fff;
}
.value .mono{ color:var(--hivis); }
.value h3{ margin-top:8px; font-size:1.05rem; }

/* ---------- timeline ---------- */
.timeline{ border-left:2px solid var(--line); margin-left:8px; }
.tl-item{ position:relative; padding:0 0 34px 34px; }
.tl-item::before{
  content:""; position:absolute; left:-8px; top:6px;
  width:14px; height:14px; background:var(--hivis);
}
.tl-item .mono{ color:var(--hivis); }
.tl-item h3{ margin:6px 0 4px; }
.tl-item p{ color:var(--steel); }

/* ---------- service detail rows ---------- */
.svc-detail{ padding:clamp(56px, 8vw, 90px) 0; border-top:1px solid var(--line); }
.svc-detail:first-of-type{ border-top:0; }
.svc-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:22px; }
.svc-tags li{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.06em;
  border:1px solid var(--line); padding:8px 14px; color:var(--ink);
  background:#fff;
}

/* ---------- contact ---------- */
.office-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:24px;
}
.office{
  border:1px solid var(--line); background:#fff; padding:32px 30px;
}
.office .mono{ color:var(--hivis); }
.office h3{ font-size:1.5rem; margin:10px 0 18px; }
.office dl{ display:grid; grid-template-columns:88px 1fr; gap:10px 16px; }
.office dt{
  font-family:var(--font-mono); font-size:11px; letter-spacing:.12em;
  text-transform:uppercase; color:var(--steel); padding-top:4px;
}
.office dd{ color:var(--ink); }
.office dd a{ display:block; color:var(--ink); }
.office dd a:hover{ color:var(--hivis); }
@media (max-width:820px){ .office-grid{ grid-template-columns:1fr; } }

.form-card{
  border:1px solid var(--line); background:#fff;
  padding:clamp(26px, 4vw, 46px);
}
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.form-grid .full{ grid-column:1 / -1; }
label{
  display:block; font-family:var(--font-mono); font-size:11px;
  letter-spacing:.12em; text-transform:uppercase; color:var(--steel);
  margin-bottom:8px;
}
label .req{ color:var(--hivis); }
input, textarea{
  width:100%; font-family:var(--font-sans); font-size:1rem;
  padding:13px 14px; border:1px solid var(--line); background:var(--paper);
  color:var(--ink); transition:border-color .15s ease;
}
input:focus, textarea:focus{ outline:2px solid var(--hivis); outline-offset:0; border-color:var(--hivis); }
textarea{ min-height:150px; resize:vertical; }
.form-foot{
  display:flex; align-items:center; justify-content:space-between;
  gap:18px; flex-wrap:wrap; margin-top:26px;
}
.form-note{ font-size:.9rem; color:var(--steel); }
.form-status{ font-weight:700; }
.form-status.ok{ color:#1B7A3D; }
.form-status.err{ color:var(--hivis-dk); }
.hp{ position:absolute; left:-9999px; opacity:0; height:0; overflow:hidden; }
@media (max-width:640px){ .form-grid{ grid-template-columns:1fr; } }

/* ---------- footer ---------- */
.site-footer{
  background:var(--navy-deep); color:rgba(255,255,255,.75);
  border-top:6px solid var(--hivis);
}
.footer-grid{
  display:grid; grid-template-columns:1.3fr 1fr 1fr .8fr;
  gap:40px; padding:clamp(48px, 6vw, 72px) 0 40px;
}
.footer-grid h4{
  font-family:var(--font-mono); font-size:11px; letter-spacing:.16em;
  text-transform:uppercase; color:rgba(255,255,255,.5); margin-bottom:16px;
}
.footer-grid p, .footer-grid li{ font-size:.94rem; line-height:1.7; }
.footer-grid a:hover{ color:#fff; }
.footer-brand{ display:flex; align-items:center; gap:12px; color:#fff; margin-bottom:16px; }
.footer-brand img{ height:36px; }
.footer-brand .brand-name span{ color:var(--hivis); }
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:22px 0;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.08em;
  color:rgba(255,255,255,.45);
}
@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  background:var(--navy); color:#fff;
  padding:clamp(70px, 10vw, 120px) 0 clamp(46px, 6vw, 72px);
  border-bottom:6px solid var(--hivis);
}
.page-hero h1{ max-width:18ch; }
.page-hero .lede{ color:rgba(255,255,255,.8); margin-top:20px; }

/* ---------- reveal on scroll ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; }
}

/* visible keyboard focus */
a:focus-visible, button:focus-visible{
  outline:3px solid var(--hivis); outline-offset:3px;
}