/* XHEF Construction — stylesheet */
:root{
  --ink:#16171A;--ink-2:#33363D;--gold:#A8762F;--gold-lt:#C8983F;--gold-soft:#F6EFE2;
  --paper:#FDFDFC;--concrete:#F2F1ED;--concrete-2:#E8E7E2;--line:#DFDDD7;--line-2:#EAE8E3;--muted:#62656C;
  --shell:min(1200px,100% - 3rem);--r:2px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Manrope",system-ui,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.is-loading{overflow:hidden;height:100vh}
h1,h2,h3,h4{font-family:"Archivo",system-ui,sans-serif;margin:0;line-height:1.03;letter-spacing:-.02em;text-transform:uppercase;font-weight:800}
h1{font-size:clamp(2.4rem,6.2vw,4.9rem)}
h2{font-size:clamp(1.85rem,3.9vw,3rem)}
h3{font-size:1.05rem;letter-spacing:.01em;line-height:1.28}
h4{font-size:.86rem;letter-spacing:.1em}
p{margin:0}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.shell{width:var(--shell);margin-inline:auto}
.mono{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase}

/* PRELOADER */
#preload{position:fixed;inset:0;z-index:200;background:var(--paper);display:grid;place-items:center;transition:opacity .7s ease,visibility .7s}
#preload.done{opacity:0;visibility:hidden}
.pl-wrap{display:grid;justify-items:center;gap:1.6rem;width:min(300px,78vw)}
.pl-logo{width:158px;opacity:0;animation:plIn .9s .1s forwards}
@keyframes plIn{to{opacity:1}}
.pl-tower{display:flex;align-items:flex-end;gap:5px;height:60px}
.pl-tower span{width:9px;background:var(--concrete-2);height:10%;animation:rise 1.5s cubic-bezier(.2,.8,.2,1) forwards}
.pl-tower span:nth-child(1){animation-delay:.10s;--h:34%}
.pl-tower span:nth-child(2){animation-delay:.22s;--h:58%}
.pl-tower span:nth-child(3){animation-delay:.34s;--h:100%;background:var(--gold)}
.pl-tower span:nth-child(4){animation-delay:.46s;--h:72%}
.pl-tower span:nth-child(5){animation-delay:.58s;--h:44%}
@keyframes rise{to{height:var(--h)}}
.pl-bar{width:100%;height:2px;background:var(--concrete-2);position:relative;overflow:hidden}
.pl-bar i{position:absolute;inset:0 100% 0 0;background:var(--gold);transition:right .25s linear}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:90;background:rgba(253,253,252,.9);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .35s,padding .35s,box-shadow .35s;padding:.75rem 0}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.nav img{width:86px;transition:width .35s}
.nav-links{display:flex;gap:1.7rem;align-items:center}
.nav-links a{font-size:.8rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);position:relative;padding:.2rem 0}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-3px;height:1px;background:var(--gold);transition:right .3s}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-links a.active{color:var(--gold)}
.nav.stuck{border-color:var(--line);box-shadow:0 10px 30px -28px rgba(22,23,26,.55);padding:.5rem 0}
.nav.stuck img{width:68px}
.btn{display:inline-flex;align-items:center;gap:.6rem;padding:.85rem 1.5rem;font-family:"Archivo",sans-serif;
  font-size:.77rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;border-radius:var(--r);
  border:1px solid var(--ink);background:var(--ink);color:#FDFDFC;transition:.28s;cursor:pointer}
.btn:hover{background:var(--gold);border-color:var(--gold);color:#fff;transform:translateY(-2px)}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#fff}
.btn.gold:hover{background:var(--gold-lt);border-color:var(--gold-lt)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--gold);color:var(--gold);background:transparent}
.burger{display:none;background:none;border:0;padding:.4rem;cursor:pointer}
.burger span{display:block;width:26px;height:2px;background:var(--ink);margin:5px 0}

/* HERO */
.hero{position:relative;padding:9.5rem 0 4.5rem;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(242,241,237,.9),rgba(253,253,252,0) 62%),
   repeating-linear-gradient(90deg,rgba(22,23,26,.045) 0 1px,transparent 1px 104px),
   repeating-linear-gradient(0deg,rgba(22,23,26,.035) 0 1px,transparent 1px 104px)}
.hero::after{content:"";position:absolute;right:-8%;top:-10%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,118,47,.16),transparent 65%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.5fr .9fr;gap:3.5rem;align-items:end}
.eyebrow{color:var(--gold);display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.hero h1 span{color:var(--gold)}
.hero-lead{margin-top:1.6rem;max-width:55ch;color:var(--muted);font-size:1.06rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.2rem}
.hero-mini{display:flex;flex-wrap:wrap;gap:1.6rem;margin-top:2.2rem;padding-top:1.6rem;border-top:1px solid var(--line)}
.hero-mini div{display:flex;align-items:center;gap:.55rem;color:var(--muted);font-size:.87rem}
.hero-mini b{color:var(--gold);font-family:"IBM Plex Mono",monospace}
.hero-card{border:1px solid var(--line);border-left:2px solid var(--gold);padding:1.4rem 1.35rem;background:#fff}
.hero-card + .hero-card{margin-top:.9rem}
.hero-card b{font-family:"Archivo",sans-serif;text-transform:uppercase;font-size:.9rem;letter-spacing:.02em}
.hero-card p{color:var(--muted);font-size:.9rem;margin-top:.35rem}

/* PAGE HEAD (inner pages) */
.phead{position:relative;padding:8.5rem 0 3.5rem;overflow:hidden;border-bottom:1px solid var(--line)}
.phead::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(242,241,237,.95),rgba(253,253,252,0) 70%),
   repeating-linear-gradient(90deg,rgba(22,23,26,.04) 0 1px,transparent 1px 104px)}
.phead .in{position:relative;display:grid;grid-template-columns:1fr .85fr;gap:3rem;align-items:end}
.phead h1{font-size:clamp(2.1rem,5vw,3.9rem)}
.phead p{color:var(--muted);font-size:1.02rem}
.crumb{color:var(--muted);margin-bottom:1.1rem;display:flex;gap:.5rem;align-items:center}
.crumb a:hover{color:var(--gold)}

/* STATS */
.stats{background:var(--ink);color:#F1F0EC}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:2.3rem 1.5rem;border-right:1px solid rgba(241,240,236,.13)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:"Archivo",sans-serif;font-size:2.4rem;font-weight:800;color:#fff;line-height:1}
.stat i{font-style:normal;color:var(--gold-lt)}
.stat span{color:#A6AAB2;font-size:.84rem;letter-spacing:.04em;display:block;margin-top:.45rem}

/* SECTIONS */
section{padding:6rem 0}
.alt{background:var(--concrete)}
.sec-head{display:grid;grid-template-columns:1fr .9fr;gap:3rem;align-items:end;margin-bottom:3.2rem}
.sec-head .mono{color:var(--gold);display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}
.sec-head .mono::before{content:"";width:26px;height:1px;background:var(--gold)}
.sec-head p{color:var(--muted)}
.more{margin-top:2.4rem;display:flex;gap:.8rem;flex-wrap:wrap}

/* company intro */
.intro{display:grid;grid-template-columns:1.15fr .85fr;gap:3.5rem;align-items:start}
.intro .big{font-family:"Archivo",sans-serif;font-size:1.35rem;font-weight:700;line-height:1.35;text-transform:none;letter-spacing:-.01em}
.intro .muted{color:var(--muted);font-size:.98rem;margin-top:1.1rem}
.sign{margin-top:2rem;padding-top:1.4rem;border-top:1px solid var(--line)}
.sign b{font-family:"Archivo",sans-serif;text-transform:uppercase;font-size:.88rem;letter-spacing:.03em;display:block}
.sign span{color:var(--muted);font-size:.85rem}
.facts{background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold)}
.facts div{padding:1.1rem 1.5rem;border-bottom:1px solid var(--line-2);display:flex;justify-content:space-between;gap:1rem;align-items:baseline}
.facts div:last-child{border-bottom:0}
.facts span{color:var(--muted);font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.13em;text-transform:uppercase}
.facts b{font-family:"Archivo",sans-serif;font-size:.95rem;text-transform:uppercase;letter-spacing:.01em;text-align:right}

/* mission cards */
.mv{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.mv article{background:#fff;border:1px solid var(--line);padding:2rem 1.7rem;transition:.3s}
.mv article:hover{border-color:var(--gold);transform:translateY(-3px)}
.mv .mono{color:var(--gold);display:block;margin-bottom:1.1rem}
.mv h3{margin-bottom:.6rem}
.mv p{color:var(--muted);font-size:.93rem}

/* timeline */
.tl{display:grid;grid-template-columns:repeat(6,1fr);gap:1.3rem;position:relative}
.tl::before{content:"";position:absolute;top:15px;left:0;right:0;height:1px;background:var(--line)}
.tl-item{position:relative;padding-top:2.9rem}
.tl-item::before{content:"";position:absolute;top:9px;left:0;width:13px;height:13px;background:var(--gold);border-radius:50%;box-shadow:0 0 0 5px var(--paper)}
.tl-item .mono{color:var(--gold);display:block;margin-bottom:.5rem;font-size:.78rem;letter-spacing:.12em}
.tl-item h3{font-size:.94rem;margin-bottom:.4rem}
.tl-item p{color:var(--muted);font-size:.86rem}
.alt .tl-item::before{box-shadow:0 0 0 5px var(--concrete)}

/* sectors */
.sect{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}
.sect article{background:#fff;border:1px solid var(--line);padding:2.1rem 1.9rem;position:relative;overflow:hidden;transition:.3s}
.sect article::before{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:var(--gold-soft);transition:.4s}
.sect article:hover{transform:translateY(-3px);border-color:var(--gold)}
.sect article:hover::before{transform:scale(1.25)}
.sect .mono{color:var(--gold);display:block;margin-bottom:1rem;position:relative}
.sect h3{font-size:1.3rem;margin-bottom:.7rem;position:relative}
.sect p{color:var(--muted);font-size:.94rem;position:relative}
.sect ul{list-style:none;margin:1.1rem 0 0;padding:0;display:grid;gap:.42rem;position:relative}
.sect li{padding-left:1.4rem;position:relative;font-size:.89rem;color:var(--muted)}
.sect li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:1px;background:var(--gold)}

/* services */
.svc{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);background:#fff}
.svc.three{grid-template-columns:repeat(3,1fr)}
.svc article{padding:2.1rem 1.6rem 2.3rem;border-right:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;transition:background .3s}
.svc article::after{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);transform:scaleY(0);transform-origin:bottom;transition:transform .35s}
.svc article:hover{background:var(--gold-soft)}
.svc article:hover::after{transform:scaleY(1)}
.svc .mono{color:var(--gold);display:block;margin-bottom:1.4rem}
.svc h3{margin-bottom:.65rem}
.svc p{color:var(--muted);font-size:.91rem}

/* detailed lists */
.lists{display:grid;grid-template-columns:repeat(3,1fr);gap:2.4rem}
.lists h4{padding-bottom:.9rem;border-bottom:2px solid var(--gold);margin-bottom:1.2rem}
.lists ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.lists li{position:relative;padding-left:1.5rem;font-size:.93rem;color:var(--muted)}
.lists li::before{content:"";position:absolute;left:0;top:.72em;width:9px;height:1px;background:var(--gold)}
.lists li b{color:var(--ink);font-weight:600}

/* process */
.proc{display:grid;grid-template-columns:repeat(5,1fr);gap:1.5rem;position:relative}
.proc::before{content:"";position:absolute;top:15px;left:0;right:0;height:1px;background:var(--line)}
.proc-step{position:relative;padding-top:3rem}
.proc-step::before{content:"";position:absolute;top:9px;left:0;width:13px;height:13px;background:var(--gold);border-radius:50%;box-shadow:0 0 0 5px var(--paper)}
.alt .proc-step::before{box-shadow:0 0 0 5px var(--concrete)}
.proc-step .mono{color:var(--gold);display:block;margin-bottom:.55rem}
.proc-step h3{margin-bottom:.55rem}
.proc-step p{color:var(--muted);font-size:.89rem}

/* projects */
.proj{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.card{border:1px solid var(--line);background:#fff;overflow:hidden;transition:.35s}
.card:hover{transform:translateY(-5px);box-shadow:0 20px 44px -30px rgba(22,23,26,.6)}
.card-top{height:158px;position:relative;background:var(--concrete-2);overflow:hidden}
.card-top::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(22,23,26,.055) 0 2px,transparent 2px 12px)}
.card-top::after{content:"";position:absolute;left:50%;bottom:-45%;width:150%;height:120%;translate:-50% 0;
  background:radial-gradient(circle at 50% 100%,rgba(168,118,47,.28),transparent 62%)}
.card-top b{position:absolute;left:1.25rem;bottom:.9rem;z-index:2;font-family:"Archivo",sans-serif;font-size:2.5rem;font-weight:800;opacity:.16;letter-spacing:-.04em}
.tag{position:absolute;top:1rem;right:1rem;z-index:2;background:var(--gold);color:#fff;padding:.32rem .6rem;
  font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase}
.card-body{padding:1.45rem 1.45rem 1.6rem}
.card-body h3{margin-bottom:.55rem}
.card-body p{color:var(--muted);font-size:.91rem}
.specs{display:flex;flex-wrap:wrap;gap:.45rem 1.1rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--line-2)}
.specs span{font-family:"IBM Plex Mono",monospace;font-size:.67rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}

/* why + side */
.why{display:grid;grid-template-columns:1fr .78fr;gap:3.5rem;align-items:start}
.why-item{padding:1.4rem 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:1.2rem;align-items:start}
.why-item .mono{color:var(--gold);padding-top:.28rem}
.why-item p{color:var(--muted);font-size:.93rem;margin-top:.4rem}
.why-side{background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);padding:2.3rem 2rem;position:sticky;top:6rem}
.why-side h3{font-size:1.35rem;margin-bottom:.9rem}
.why-side p{color:var(--muted);font-size:.93rem}
.why-side ul{list-style:none;padding:0;margin:1.4rem 0 1.8rem;display:grid;gap:.7rem}
.why-side li{padding-left:1.5rem;position:relative;font-size:.93rem}
.why-side li::before{content:"";position:absolute;left:0;top:.68em;width:9px;height:1px;background:var(--gold)}

/* feature grid */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.feat article{background:#fff;border:1px solid var(--line);padding:1.9rem 1.6rem;transition:.3s}
.feat article:hover{border-color:var(--gold);transform:translateY(-3px)}
.feat .mono{color:var(--gold);display:block;margin-bottom:1.1rem}
.feat h3{margin-bottom:.55rem}
.feat p{color:var(--muted);font-size:.91rem}

/* capacities */
.cap{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem}
.cap article{border:1px solid var(--line);background:#fff;padding:1.7rem 1.5rem}
.cap b{display:block;font-family:"Archivo",sans-serif;font-size:2rem;font-weight:800;color:var(--gold);line-height:1;margin-bottom:.6rem}
.cap h3{margin-bottom:.4rem}
.cap p{color:var(--muted);font-size:.88rem}

/* team */
.team{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.team article{border:1px solid var(--line);background:#fff;padding:1.7rem 1.5rem}
.team .badge{width:44px;height:44px;display:grid;place-items:center;background:var(--gold-soft);color:var(--gold);
  font-family:"Archivo",sans-serif;font-weight:800;margin-bottom:1.1rem;border:1px solid rgba(168,118,47,.3)}
.team h3{margin-bottom:.45rem}
.team p{color:var(--muted);font-size:.9rem}

/* zones */
.zones{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:.5rem}
.zones span{border:1px solid var(--line);background:#fff;padding:.55rem 1.05rem;font-size:.88rem;transition:.25s}
.zones span:hover{border-color:var(--gold);color:var(--gold)}

/* quotes */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.quote{background:#fff;border:1px solid var(--line);border-top:2px solid var(--gold);padding:1.9rem 1.7rem;margin:0}
.quote p{color:var(--ink-2);font-size:.96rem}
.quote .stars{color:var(--gold);letter-spacing:.2em;font-size:.8rem;margin-bottom:.9rem}
.quote footer{margin-top:1.3rem;padding-top:1rem;border-top:1px solid var(--line-2)}
.quote b{display:block;font-family:"Archivo",sans-serif;text-transform:uppercase;font-size:.83rem;letter-spacing:.04em}
.quote span{color:var(--muted);font-size:.79rem}

/* band */
.band{background:var(--gold-soft);border-top:1px solid rgba(168,118,47,.28);border-bottom:1px solid rgba(168,118,47,.28);padding:3.4rem 0}
.band-in{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.band h2{max-width:20ch}
.band p{color:var(--muted);margin-top:.7rem;max-width:48ch}

/* contact page */
.cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.cbox{background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);padding:1.9rem 1.7rem}
.cbox .mono{color:var(--gold);display:block;margin-bottom:.9rem}
.cbox a,.cbox p{font-size:1.02rem}
.cbox a{font-weight:600}
.cbox a:hover{color:var(--gold)}
.cbox small{display:block;color:var(--muted);font-size:.85rem;margin-top:.5rem}
.map{border:1px solid var(--line);height:420px;width:100%;filter:grayscale(.35) contrast(1.05)}
.dept{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.dept article{border:1px solid var(--line);background:#fff;padding:1.7rem 1.5rem}
.dept h3{margin-bottom:.5rem}
.dept p{color:var(--muted);font-size:.9rem;margin-bottom:.7rem}
.dept a{font-family:"IBM Plex Mono",monospace;font-size:.85rem;color:var(--gold)}

/* footer */
footer.site{background:var(--concrete);border-top:1px solid var(--line);padding:3.4rem 0 1.8rem;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:2.6rem;align-items:start}
.foot-grid img{width:124px;margin-bottom:1.1rem}
.foot-grid h4{color:var(--ink);margin-bottom:.95rem}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:.45rem;font-size:.91rem}
.foot-grid a:hover{color:var(--gold)}
.foot-bot{margin-top:2.6rem;padding-top:1.3rem;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.77rem}

.rv{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}

@media(max-width:1050px){
  :root{--shell:min(1200px,100% - 2.2rem)}
  .hero-grid,.why,.intro,.phead .in{grid-template-columns:1fr;gap:2.4rem}
  .sec-head{grid-template-columns:1fr;gap:1.1rem}
  .svc,.svc.three{grid-template-columns:repeat(2,1fr)}
  .proj,.quotes,.feat,.lists,.mv,.sect,.cgrid,.dept{grid-template-columns:repeat(2,1fr)}
  .team,.cap{grid-template-columns:repeat(2,1fr)}
  .proc,.tl{grid-template-columns:repeat(2,1fr);gap:2rem}
  .proc::before,.tl::before{display:none}
  .why-side{position:static}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:16px}
  section{padding:4.2rem 0}
  .hero{padding:8rem 0 3rem}
  .phead{padding:7rem 0 2.6rem}
  .nav-links{position:fixed;inset:0 0 auto;top:0;background:var(--paper);flex-direction:column;justify-content:center;
    height:100vh;gap:1.6rem;transform:translateX(100%);transition:transform .4s;z-index:95}
  .nav-links.open{transform:none}
  .nav-links a{font-size:1.15rem}
  .burger{display:block;z-index:96}
  .nav .btn{display:none}
  .svc,.svc.three,.proj,.quotes,.proc,.feat,.lists,.team,.mv,.sect,.tl,.cap,.cgrid,.dept{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid rgba(241,240,236,.13);padding:1.6rem 0}
  .foot-grid{grid-template-columns:1fr;gap:1.9rem}
  .map{height:320px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
}