/* ============================================================
   CORE GRADE CONSTRUCTION — DESIGN SYSTEM
   Palette: black/charcoal dominant, gold/amber deliberate accent
   Display: Oswald (condensed, signage) / Body: Work Sans / Data: IBM Plex Mono
   Signature motif: the "grade line" — a surveyed elevation line with
   benchmark ticks, standing in for the company's actual discipline
   (mass grading, leveling, precision earthwork).
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Work+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --black:#0D0D0D;
  --charcoal:#2B2B2B;
  --charcoal-2:#1a1a1a;
  --slate:#5A5A5A;
  --slate-light:#8a8a86;
  --gold:#F2B233;
  --amber:#C9952E;
  --paper:#F3F1EC;
  --paper-dim:#E8E5DC;
  --white:#FAFAF8;

  --display: 'Oswald', 'Arial Narrow', sans-serif;
  --body: 'Work Sans', -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;

  --edge: 1px solid rgba(242,178,51,0.18);
  --edge-dark: 1px solid rgba(255,255,255,0.08);
  --container: 1360px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{overflow-x:hidden;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  background:var(--paper);
  color:var(--charcoal);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-wrap:break-word;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.01em;
  margin:0;
  color:var(--black);
}

.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--amber);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:'';
  width:22px;height:1px;
  background:var(--amber);
  display:inline-block;
}

.container{max-width:var(--container);margin:0 auto;padding:0 40px;}
@media (max-width:720px){.container{padding:0 22px;}}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
}

/* ---------------- GRADE LINE (signature element) ---------------- */
.grade-line{
  position:relative;
  width:100%;
  height:56px;
  overflow:hidden;
}
.grade-line svg{width:100%;height:100%;display:block;}
.grade-line path{
  fill:none;
  stroke:var(--gold);
  stroke-width:1.4;
  stroke-dasharray:1400;
  stroke-dashoffset:1400;
  animation:draw 2.1s ease-out forwards;
}
.grade-line .tick{stroke:var(--gold);stroke-width:1;opacity:0;animation:fadein 0.6s ease-out 1.6s forwards;}
.grade-line .gl-label{
  font-family:var(--mono);font-size:10.5px;fill:var(--slate-light);
  opacity:0;animation:fadein 0.6s ease-out 1.8s forwards;letter-spacing:0.04em;
}
.grade-line.on-dark .gl-label{fill:#9c9a92;}
@keyframes draw{to{stroke-dashoffset:0;}}
@keyframes fadein{to{opacity:1;}}

/* ---------------- HEADER / NAV ---------------- */
header.site{
  position:sticky;top:0;z-index:100;
  background:rgba(13,13,13,0.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(242,178,51,0.15);
}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 40px;
  display:flex;align-items:center;justify-content:space-between;
  height:78px;
}
@media (max-width:720px){.nav-wrap{padding:0 22px;height:66px;}}

.brand{display:flex;align-items:center;gap:12px;}
.brand .mark{width:38px;height:38px;flex-shrink:0;}
.mark-chip{
  width:44px;height:44px;flex-shrink:0;background:var(--white);
  border-radius:9px;border:1px solid rgba(242,178,51,0.4);
  padding:2px;display:flex;align-items:center;justify-content:center;
}
.mark-chip img{width:100%;height:100%;object-fit:contain;border-radius:6px;}
.mark-chip.lg{width:84px;height:84px;border-radius:14px;}
.mark-chip.lg img{border-radius:10px;}
.footer-brand-row{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.footer-brand-row .mark-chip{width:38px;height:38px;border-radius:8px;}
.brand-text{font-family:var(--display);color:var(--white);line-height:1.05;}
.brand-text .l1{font-size:16px;font-weight:700;letter-spacing:0.04em;}
.brand-text .l2{font-size:10px;font-weight:500;letter-spacing:0.22em;color:var(--gold);}

nav.primary{display:flex;align-items:center;gap:34px;}
nav.primary a{
  font-family:var(--mono);font-size:12.5px;letter-spacing:0.06em;
  text-transform:uppercase;color:#d8d6cf;
  position:relative;padding:4px 0;
  transition:color .2s ease;
}
nav.primary a:hover{color:var(--gold);}
nav.primary a.current{color:var(--gold);}
nav.primary a.current::after{
  content:'';position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--gold);
}
.nav-cta{
  font-family:var(--mono) !important;font-size:11.5px !important;
  border:1px solid var(--gold);padding:9px 16px;color:var(--gold) !important;
  letter-spacing:0.08em;transition:all .2s ease;
}
.nav-cta:hover{background:var(--gold);color:var(--black) !important;}

.nav-toggle{display:none;background:none;border:none;color:var(--white);cursor:pointer;padding:6px;}
.nav-toggle svg{width:24px;height:24px;}

@media (max-width:960px){
  nav.primary{
    position:fixed;top:66px;left:0;right:0;height:calc(100vh - 66px);
    background:var(--black);
    flex-direction:column;align-items:flex-start;padding:30px 24px;
    gap:22px;transform:translateX(100%);transition:transform .3s ease;
    overflow-y:auto;
  }
  nav.primary.open{transform:translateX(0);}
  nav.primary a{font-size:15px;}
  .nav-toggle{display:block;}
}

/* ---------------- BUTTONS ---------------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:0.08em;text-transform:uppercase;
  padding:15px 26px;border:1px solid transparent;cursor:pointer;transition:all .2s ease;
  white-space:nowrap;
}
.btn-gold{background:var(--gold);color:var(--black);border-color:var(--gold);}
.btn-gold:hover{background:var(--amber);border-color:var(--amber);}
.btn-outline{background:transparent;color:var(--white);border-color:rgba(255,255,255,0.35);}
.btn-outline:hover{border-color:var(--gold);color:var(--gold);}
.btn-outline.dark{color:var(--black);border-color:var(--charcoal);}
.btn-outline.dark:hover{border-color:var(--gold);color:var(--amber);}
.btn svg{width:15px;height:15px;}

/* ---------------- HERO (shared shell, per-page content) ---------------- */
.hero{
  position:relative;background:var(--black);color:var(--white);
  padding:120px 0 90px;overflow:hidden;
  border-bottom:1px solid rgba(242,178,51,0.15);
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 50% at 82% 10%, rgba(242,178,51,0.10), transparent 60%),
    repeating-linear-gradient(115deg, rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 64px);
  pointer-events:none;
}
.hero-inner{position:relative;max-width:820px;}
.hero h1{
  color:var(--white);font-size:clamp(38px,5.4vw,68px);line-height:1.02;
  margin-top:18px;
}
.hero h1 em{font-style:normal;color:var(--gold);}
.hero .sub{
  font-family:var(--body);font-size:18px;line-height:1.65;color:#c9c7bf;
  max-width:640px;margin-top:22px;
}
.hero .cta-row{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap;}

.page-hero{padding:96px 0 60px;}
.page-hero h1{font-size:clamp(32px,4.4vw,52px);}

/* stat strip inside hero */
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:56px;border-top:var(--edge-dark);
}
.hero-stats .stat{padding:22px 20px 4px 0;border-right:var(--edge-dark);}
.hero-stats .stat:last-child{border-right:none;}
.hero-stats .num{font-family:var(--display);font-size:clamp(24px,3vw,34px);color:var(--gold);font-weight:600;}
.hero-stats .label{font-family:var(--mono);font-size:11px;color:#9c9a92;letter-spacing:0.05em;margin-top:6px;text-transform:uppercase;}
@media (max-width:720px){.hero-stats{grid-template-columns:repeat(2,1fr);}.hero-stats .stat{padding-bottom:18px;}}

/* ---------------- SECTIONS ---------------- */
section{padding:96px 0;}
@media (max-width:720px){section{padding:64px 0;}}
.section-dark{background:var(--black);color:var(--white);}
.section-charcoal{background:var(--charcoal);color:var(--white);}
.section-dark h2, .section-charcoal h2{color:var(--white);}
.section-paper-dim{background:var(--paper-dim);}

.section-head{max-width:680px;margin-bottom:52px;}
.section-head h2{font-size:clamp(28px,3.4vw,42px);margin-top:14px;line-height:1.08;}
.section-head p{font-size:16.5px;color:var(--slate);margin-top:16px;line-height:1.6;}
.section-dark .section-head p, .section-charcoal .section-head p{color:#b9b7ae;}

.section-head-row{
  display:flex;justify-content:space-between;align-items:flex-end;gap:30px;
  margin-bottom:52px;flex-wrap:wrap;
}

/* ---------------- CAPABILITY GRID ---------------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(242,178,51,0.16);}
@media (max-width:900px){.cap-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.cap-grid{grid-template-columns:1fr;}}
.cap-card{
  background:var(--black);padding:38px 30px;position:relative;
  transition:background .25s ease;
}
.cap-card:hover{background:var(--charcoal-2);}
.cap-card .cap-index{font-family:var(--mono);font-size:11px;color:var(--slate-light);letter-spacing:0.08em;}
.cap-card h3{color:var(--white);font-size:20px;margin-top:16px;line-height:1.15;}
.cap-card p{color:#a9a79f;font-size:14.5px;margin-top:12px;line-height:1.6;}
.cap-card .cap-code{
  font-family:var(--mono);font-size:10.5px;color:var(--gold);margin-top:18px;
  opacity:0;transform:translateY(4px);transition:all .25s ease;
}
.cap-card:hover .cap-code{opacity:1;transform:translateY(0);}

/* ---------------- MARKETS / SECTOR CARDS ---------------- */
.market-list{display:flex;flex-direction:column;}
.market-row{
  display:grid;grid-template-columns:60px 1fr auto;align-items:center;gap:26px;
  padding:34px 0;border-bottom:var(--edge);cursor:default;
  transition:padding-left .25s ease;
}
.market-row:hover{padding-left:10px;border-color:var(--gold);}
.market-row .m-index{font-family:var(--mono);color:var(--amber);font-size:13px;}
.market-row h3{font-size:clamp(20px,2.4vw,28px);}
.market-row .m-desc{font-family:var(--body);font-weight:400;text-transform:none;color:var(--slate);font-size:15px;margin-top:8px;letter-spacing:0;max-width:640px;}
.market-row .m-arrow{width:20px;height:20px;color:var(--slate-light);flex-shrink:0;}
@media (max-width:640px){.market-row{grid-template-columns:1fr;gap:8px;}.market-row .m-arrow{display:none;}}

/* ---------------- PROJECT / CASE STUDY CARDS ---------------- */
.proj-card{
  border:var(--edge);background:var(--white);padding:0;
  display:grid;grid-template-columns:1fr 1.4fr;
}
.proj-card + .proj-card{border-top:none;}
@media (max-width:820px){.proj-card{grid-template-columns:1fr;}}
.proj-visual{
  background:var(--black);position:relative;min-height:260px;
  display:flex;align-items:flex-end;padding:26px;
}
.proj-visual .p-tag{font-family:var(--mono);font-size:11px;color:var(--gold);letter-spacing:0.08em;text-transform:uppercase;}
.proj-body{padding:40px;}
.proj-body h3{font-size:24px;margin-top:10px;}
.proj-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;margin-bottom:20px;}
.proj-meta div{font-family:var(--mono);font-size:11px;color:var(--slate);}
.proj-meta div span{display:block;color:var(--black);font-size:13px;margin-top:3px;}
.proj-body p{color:var(--slate);font-size:15px;line-height:1.65;}

/* ---------------- SAFETY / COMPLIANCE BADGES ---------------- */
.badge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,0.08);}
@media (max-width:900px){.badge-grid{grid-template-columns:repeat(2,1fr);}}
.badge-card{background:var(--black);padding:30px 24px;text-align:left;}
.badge-card svg{width:26px;height:26px;color:var(--gold);}
.badge-card h4{color:var(--white);font-size:14px;margin-top:16px;letter-spacing:0.03em;}
.badge-card p{color:#9c9a92;font-size:13px;margin-top:8px;line-height:1.55;text-transform:none;font-family:var(--body);letter-spacing:0;}

/* ---------------- FORM (bid request) ---------------- */
.bid-form{background:var(--white);border:var(--edge);padding:44px;}
.bid-form .f-row{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:22px;}
@media (max-width:640px){.bid-form .f-row{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:0.06em;text-transform:uppercase;color:var(--slate);}
.field input, .field select, .field textarea{
  font-family:var(--body);font-size:15px;padding:13px 14px;
  border:1px solid #d7d4c9;background:var(--paper);color:var(--black);
}
.field textarea{resize:vertical;min-height:110px;}
.field input:focus, .field select:focus, .field textarea:focus{border-color:var(--gold);}

/* ---------------- FOOTER ---------------- */
footer.site{background:var(--black);color:#9c9a92;padding:70px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,0.08);}
.footer-grid > *{min-width:0;}
.footer-grid.cols-3{grid-template-columns:1.4fr 1fr 1fr;}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h5{font-family:var(--mono);font-size:11px;letter-spacing:0.1em;color:var(--gold);text-transform:uppercase;margin-bottom:18px;}
.footer-grid a, .footer-grid p{font-size:13.5px;color:#9c9a92;display:block;margin-bottom:11px;line-height:1.5;}
.footer-grid a:hover{color:var(--gold);}
.footer-bottom{display:flex;justify-content:space-between;padding-top:26px;font-family:var(--mono);font-size:11px;letter-spacing:0.04em;flex-wrap:wrap;gap:10px;}

/* ---------------- REVEAL ON SCROLL ---------------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

/* ---------------- PHOTO PANELS (capabilities / markets / hero) ---------------- */
.hero.has-photo{background-size:cover;background-position:center;}
.hero.has-photo::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(13,13,13,0.95) 0%, rgba(13,13,13,0.82) 34%, rgba(13,13,13,0.42) 72%, rgba(13,13,13,0.2) 100%);
  pointer-events:none;
}
.hero .hero-inner, .hero .hero-stats{position:relative;z-index:2;}

.photo-panel{position:relative;overflow:hidden;border:1px solid rgba(242,178,51,0.28);}
.photo-panel img{width:100%;height:360px;object-fit:cover;display:block;filter:saturate(0.92) contrast(1.06);transition:transform .5s ease;}
.photo-panel:hover img{transform:scale(1.03);}
.photo-panel::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg, transparent 55%, rgba(13,13,13,0.65) 100%);
  pointer-events:none;
}
.photo-panel .p-cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
  font-family:var(--mono);font-size:10.5px;color:#d8d6cf;letter-spacing:0.05em;
  line-height:1.8;z-index:2;
}
.photo-panel .p-cap b{color:var(--gold);font-weight:500;}
@media (max-width:820px){.photo-panel img{height:260px;}}

.photo-banner{position:relative;overflow:hidden;border:var(--edge-dark);}
.photo-banner img{width:100%;height:420px;object-fit:cover;display:block;filter:saturate(0.9) contrast(1.05);}
.photo-banner::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg, rgba(13,13,13,0.75) 0%, transparent 55%);pointer-events:none;}
@media (max-width:720px){.photo-banner img{height:280px;}}

/* ---------------- MISC ---------------- */
.divider{height:1px;background:rgba(242,178,51,0.18);width:100%;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;min-width:0;}
.two-col > *{min-width:0;}
@media (max-width:820px){.two-col{grid-template-columns:1fr;gap:36px;}}
.tag-strip{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px;}
.tag-pill{font-family:var(--mono);font-size:11px;border:1px solid var(--slate-light);color:var(--slate);padding:7px 13px;letter-spacing:0.04em;}
.section-dark .tag-pill, .section-charcoal .tag-pill{border-color:rgba(255,255,255,0.25);color:#c9c7bf;}