:root{
  --paper:#f4f6fa; --paper-2:#ecf0f6; --white:#ffffff;
  --ink:#161d27; --ink-soft:#3d4b5a; --muted:#6a7787;
  --line:#d9e0ea; --grid:#c6d2e0;
  --red:#e0484d; --red-dim:#f3d3d4; --blue:#2f6fed; --blue-dim:#d3e0fb;
  --steel:#5b6b7d; --graphite:#121820;
  --maxw:1240px; --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','IBM Plex Sans',sans-serif;background:var(--paper);color:var(--ink);
  -webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 30px}
h1,h2,h3{font-family:'IBM Plex Sans','Inter',sans-serif;font-weight:600;line-height:1.08;letter-spacing:-.015em}
.mono{font-family:'IBM Plex Mono',monospace;font-weight:500;letter-spacing:.14em;text-transform:uppercase;font-size:11px}
.eyebrow{display:inline-flex;align-items:center;gap:11px;color:var(--steel)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--red)}

/* header */
header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .35s var(--ease),box-shadow .35s,border-color .35s;border-bottom:1px solid transparent}
header.scrolled{background:rgba(244,246,250,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:96px;padding:30px 34px 24px;max-width:100%}
.brand img{height:62px;width:auto}
.navlinks{display:flex;align-items:center;gap:34px}
.navlinks a{font-size:14px;color:var(--ink-soft);position:relative;padding:4px 0;transition:color .2s;font-weight:500}
.navlinks a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--red);transition:width .3s var(--ease)}
.navlinks a:not(.btn):hover{color:var(--ink)}
.navlinks a:not(.btn):hover::after{width:100%}
.btn{font-family:'IBM Plex Sans';font-weight:600;font-size:13px;letter-spacing:.01em;padding:12px 22px;border:1.5px solid var(--ink);color:var(--ink);
  border-radius:3px;transition:all .25s var(--ease);display:inline-flex;align-items:center;gap:9px;cursor:pointer;background:transparent}
.btn:hover{background:var(--ink);color:var(--white)}
.btn .ar{transition:transform .25s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.btn-solid{background:var(--ink);color:var(--white)}
.btn-solid:hover{background:var(--red);border-color:var(--red)}
.cta-head,a.cta-head{background:#141a22 !important;color:#ffffff !important;border-color:#141a22 !important}
.cta-head:hover{background:#e0484d !important;border-color:#e0484d !important;color:#ffffff !important}
.cta-head .ar{color:#ffffff !important}
.burger{display:none;background:none;border:0;cursor:pointer;width:30px;height:20px;position:relative;z-index:101}
.burger span{position:absolute;left:0;height:2px;width:100%;background:var(--ink);transition:.3s var(--ease)}
.burger span:nth-child(1){top:0}.burger span:nth-child(2){top:9px}.burger span:nth-child(3){top:18px}
body.menu-open .burger span:nth-child(1){top:9px;transform:rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){top:9px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:128px 0 60px;overflow:hidden;
  background:
    radial-gradient(1200px 600px at 78% 30%,rgba(47,111,237,.06),transparent 60%),
    var(--paper);}
.hero .grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:40px 40px;opacity:.4;-webkit-mask-image:radial-gradient(circle at 74% 44%,#000,transparent 70%);mask-image:radial-gradient(circle at 74% 44%,#000,transparent 70%)}
.hero-inner{position:relative;z-index:2;width:100%;display:grid;grid-template-columns:1fr 0.9fr;gap:34px;align-items:center}
.hero .eyebrow{margin-bottom:24px;font-size:14px;letter-spacing:.14em}
.hero .eyebrow .bim-lg{font-size:1.7em;font-weight:600;color:var(--red);letter-spacing:.06em;line-height:1}
.hero h1{font-size:clamp(38px,6vw,68px);font-weight:700;letter-spacing:-.02em}
.hero h1 .r{color:var(--red)}
.hero p.lead{margin-top:22px;max-width:32em;font-size:clamp(15px,1.5vw,17.5px);color:var(--ink-soft)}
.hero .cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero .legend{margin-top:34px;display:flex;gap:22px;flex-wrap:wrap}
.hero .legend .lg{display:flex;align-items:center;gap:9px;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}
.hero .legend .sw{width:22px;height:4px;border-radius:2px}
.bim-wrap{position:relative;justify-self:start;width:min(30vw,360px);margin:0}
.bim-wrap .tag{position:absolute;top:8px;left:8px;font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.12em;color:var(--muted)}
.bim-wrap .tag2{position:absolute;bottom:8px;right:8px;font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.12em;color:var(--muted)}

/* BIM svg animation */
.bim{width:100%;height:auto;overflow:visible}
.bim .shadow{fill:rgba(20,30,45,.24);opacity:0;animation:bfade2 .8s var(--ease) forwards .3s}
.bim .env{stroke:var(--ink);stroke-width:1.4}
.bim .envroof{fill:none;stroke:var(--ink);stroke-width:1.2}
.bim .envelope{opacity:0;animation:bfade5 .9s var(--ease) forwards 1.7s}
.bim .floor{opacity:0;transform:translateY(34px);animation:brise .8s var(--ease) forwards;animation-delay:calc(.4s + var(--i)*.15s)}
.bim .plate{fill:url(#plate);stroke:none}
.bim .plateedge{fill:none;stroke:var(--ink);stroke-width:1.7;stroke-dasharray:1;stroke-dashoffset:1;animation:bdraw .8s var(--ease) forwards;animation-delay:calc(.75s + var(--i)*.18s)}
.bim .slabside{stroke:none}.bim .slabside.r{fill:#e6ecf3}.bim .slabside.l{fill:#c2cddc}
.bim .wall{stroke:#232c37;stroke-width:2;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;animation:bdraw .8s var(--ease) forwards;animation-delay:calc(1.0s + var(--i)*.18s)}
.bim .furn{fill:#2a3340;stroke:#151b22;stroke-width:.5;opacity:0;animation:bfade2 .4s var(--ease) forwards;animation-delay:calc(1.15s + var(--i)*.15s)}
.bim .furn.sd{fill:#20272f}.bim .furn.sd2{fill:#161c23}
.bim .duct{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;animation:bdraw .6s var(--ease) forwards}
.bim .duct.supply{stroke:var(--red);stroke-width:5}.bim .duct.return{stroke:var(--blue);stroke-width:5}
.bim .duct.riser{animation-delay:3.1s}.bim .duct.t{animation-delay:3.45s}.bim .duct.thin{stroke-width:3;animation-delay:3.8s}
.bim .dif{stroke:#fff;stroke-width:1;opacity:0;transform-box:fill-box;transform-origin:center;transform:scale(.2);animation:bpop .32s var(--ease) forwards 4.1s}
.bim .dif.supply{fill:var(--red)}.bim .dif.return{fill:var(--blue)}
.bim .flow{stroke:#fff;stroke-width:2;stroke-dasharray:2 11;opacity:0;animation:bfade4 .5s ease forwards 4.4s, bflow 1.1s linear infinite 4.4s}
.bim .ahu{opacity:0;transform:translateY(-10px);animation:brise .5s var(--ease) forwards 2.1s}
.bim .unit{stroke:var(--ink);stroke-width:1}.bim .unit.top{fill:url(#mTop)}.bim .unit.rt{fill:url(#mRt)}.bim .unit.lf{fill:url(#mLf)}
.bim .rib{stroke:#8b98a8;stroke-width:.8}
@keyframes bfade2{to{opacity:1}}
@keyframes bfade4{to{opacity:.75}}
@keyframes bfade5{to{opacity:.32}}
@keyframes brise{to{opacity:1;transform:none}}
@keyframes bdraw{to{stroke-dashoffset:0}}
@keyframes bpop{to{opacity:1;transform:scale(1)}}
@keyframes bflow{to{stroke-dashoffset:-13}}

/* strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white);overflow:hidden;position:relative;z-index:3}
.strip .row{display:flex;white-space:nowrap;animation:slide 32s linear infinite}
.strip .row span{font-family:'IBM Plex Mono';font-weight:500;font-size:13px;letter-spacing:.16em;color:var(--muted);padding:17px 34px;display:inline-flex;align-items:center;gap:34px;text-transform:uppercase}
.strip .row span::after{content:"";width:5px;height:5px;background:var(--red);border-radius:50%}
@keyframes slide{to{transform:translateX(-50%)}}

/* sections */
section{position:relative}
.pad{padding:120px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:58px}
.sec-head .eyebrow{margin-bottom:16px}
.sec-head h2{font-size:clamp(28px,4vw,46px);font-weight:600}
.sec-head .num{font-family:'IBM Plex Mono';font-size:11px;color:var(--muted);letter-spacing:.12em;white-space:nowrap}

/* services */
#services{background:var(--white)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden}
.svc{background:var(--white);padding:42px 38px;position:relative;transition:background .3s var(--ease)}
.svc::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;background:var(--red);transform:scaleY(0);transform-origin:top;transition:transform .35s var(--ease)}
.svc:nth-child(2n)::before{background:var(--blue)}
.svc:hover{background:var(--paper)}
.svc:hover::before{transform:scaleY(1)}
.svc .k{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.14em;color:var(--steel);margin-bottom:22px;text-transform:uppercase}
.svc h3{font-size:22px;font-weight:600;margin-bottom:12px}
.svc p{color:var(--ink-soft);font-size:15px}
.svc .no{position:absolute;top:34px;right:36px;font-family:'IBM Plex Mono';font-size:12px;color:var(--line)}

/* methodology */
#method{background:var(--paper)}
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.tl{position:relative;padding-left:30px}
.tl::before{content:"";position:absolute;left:4px;top:8px;bottom:8px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:0 0 40px 28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-30px;top:5px;width:11px;height:11px;border-radius:50%;background:var(--paper);border:2px solid var(--line);transition:.35s var(--ease)}
.tl-item.in::before{background:var(--red);border-color:var(--red)}
.tl-item .st{font-family:'IBM Plex Mono';font-size:11px;color:var(--steel);margin-bottom:7px;letter-spacing:.1em}
.tl-item h3{font-size:20px;font-weight:600;margin-bottom:6px}
.tl-item p{color:var(--ink-soft);font-size:15px}
.method-card{position:relative;background:var(--white);border:1px solid var(--line);border-radius:8px;padding:34px;overflow:hidden}
.method-card .gr{position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:30px 30px;opacity:.35}
.method-card .cap{position:relative;font-family:'IBM Plex Mono';font-size:11px;color:var(--muted);letter-spacing:.1em;margin-bottom:20px}
.method-card .stat{position:relative;display:flex;flex-direction:column;gap:20px}
.method-card .stat .s{border-top:1px solid var(--line);padding-top:14px}
.method-card .stat .s b{font-family:'IBM Plex Sans';font-size:30px;font-weight:600;color:var(--ink);display:block}
.method-card .stat .s span{font-size:13px;color:var(--muted)}

/* team */
#team{background:var(--white)}
.team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.member{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:38px 36px;transition:transform .35s var(--ease),box-shadow .35s}
.member:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(20,30,45,.3)}
.member .role{display:inline-flex;align-items:center;gap:8px;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.1em;color:var(--steel);margin-bottom:20px;text-transform:uppercase}
.member .role::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--red)}
.member:nth-child(2n) .role::before{background:var(--blue)}
.member h3{font-size:25px;font-weight:600;margin-bottom:7px}
.member .title{color:var(--muted);font-size:14.5px;margin-bottom:2px}
.member .spec{color:var(--muted);font-size:14.5px;margin-bottom:26px}
.member .contact{border-top:1px solid var(--line);padding-top:20px;display:flex;flex-direction:column;gap:11px}
.member .contact a{display:flex;align-items:center;gap:12px;color:var(--ink-soft);font-size:14.5px;transition:color .2s}
.member .contact a:hover{color:var(--red)}
.member .contact svg{width:16px;height:16px;stroke:var(--steel);flex-shrink:0}

/* contact */
#contact{background:var(--paper)}
.ct-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.ct-info .line{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.ct-info .line:first-child{border-top:1px solid var(--line)}
.ct-info .line svg{width:20px;height:20px;stroke:var(--ink);flex-shrink:0;margin-top:2px}
.ct-info .lbl{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.12em;color:var(--muted);margin-bottom:4px;text-transform:uppercase}
.ct-info .val{font-size:15.5px;color:var(--ink)}
.ct-info .val a{color:var(--ink);border-bottom:1px solid transparent;transition:.2s}
.ct-info .val a:hover{border-color:var(--red);color:var(--red)}
form .fld{margin-bottom:18px}
form label{display:block;font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
form input,form textarea{width:100%;background:var(--white);border:1px solid var(--line);padding:14px 16px;font-family:'Inter';font-size:15px;color:var(--ink);border-radius:4px;transition:border-color .2s,box-shadow .2s}
form input:focus,form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-dim)}
form textarea{resize:vertical;min-height:120px}
form .btn{width:100%;justify-content:center;padding:15px}

/* footer */
footer{background:var(--graphite);color:#c7d0da;padding:66px 0 34px}
.foot-top{display:flex;justify-content:space-between;gap:44px;flex-wrap:wrap;margin-bottom:48px}
.foot-brand{max-width:320px}
.foot-brand img{height:42px;margin-bottom:18px}
.foot-brand p{color:#8a95a2;font-size:14px}
.foot-nav{display:flex;gap:56px;flex-wrap:wrap}
.foot-col h4{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.14em;color:#7a8592;text-transform:uppercase;margin-bottom:18px;font-weight:500}
.foot-col a,.foot-col span{display:block;color:#aeb8c4;font-size:14px;margin-bottom:11px;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bot{border-top:1px solid #232c37;padding-top:26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-bot span{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.08em;color:#7a8592}


/* projects */
#projects{background:var(--paper)}
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.proj{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s}
.proj:hover{transform:translateY(-5px);box-shadow:0 20px 44px -26px rgba(20,30,45,.32)}
.proj .thumb{position:relative;aspect-ratio:4/3;background:var(--paper-2);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.proj .thumb .bp{position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:26px 26px;opacity:.5}
.proj .thumb .ic{position:relative;width:46px;height:46px;opacity:.55;transition:transform .4s var(--ease)}
.proj:hover .thumb .ic{transform:translateY(-4px)}
.proj .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;transition:transform .5s var(--ease)}
.proj:hover .thumb img{transform:scale(1.05)}
.proj .thumb .cat{position:absolute;top:12px;left:12px;z-index:2;font-family:'IBM Plex Mono';font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:#fff;background:var(--ink);padding:5px 9px;border-radius:3px}
.proj .thumb .ph{position:absolute;bottom:10px;right:12px;font-family:'IBM Plex Mono';font-size:9px;letter-spacing:.12em;color:var(--muted)}
.proj .body{padding:20px 22px}
.proj .body h3{font-size:17.5px;font-weight:600;margin-bottom:7px;line-height:1.25}
.proj .body .meta{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.05em;color:var(--muted);display:flex;align-items:center;gap:8px}
.proj .body .meta i{width:5px;height:5px;border-radius:50%;background:var(--red);display:inline-block}

/* stats band */
.stats{background:var(--graphite);color:#fff;padding:74px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat{position:relative;padding-left:18px}
.stat::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;background:var(--red)}
.stat:nth-child(2n)::before{background:var(--blue)}
.stat b{font-family:'IBM Plex Sans';font-size:clamp(32px,4vw,46px);font-weight:600;display:block;line-height:1;letter-spacing:-.02em}
.stat span{color:#94a0af;font-size:13.5px;margin-top:9px;display:block;line-height:1.4}

/* tools */
#tools{background:var(--white)}
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.tool{background:var(--white);padding:26px 24px;transition:background .3s var(--ease);position:relative}
.tool::before{content:"";position:absolute;left:0;top:0;width:0;height:2px;background:var(--red);transition:width .35s var(--ease)}
.tool:hover{background:var(--paper)}
.tool:hover::before{width:100%}
.tool b{font-family:'IBM Plex Sans';font-size:17px;font-weight:600;display:block}
.tool span{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.09em;text-transform:uppercase;color:var(--steel);margin-top:6px;display:block}


.proj{cursor:pointer}
.proj .thumb img.cover{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;transition:transform .5s var(--ease)}
.proj:hover .thumb img.cover{transform:scale(1.05)}
.proj .thumb .view{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:center;background:rgba(18,24,32,0);opacity:0;transition:.3s var(--ease)}
.proj:hover .thumb .view{opacity:1;background:rgba(18,24,32,.30)}
.proj .thumb .view span{background:#fff;color:var(--ink);font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;padding:8px 15px;border-radius:3px}
/* modal */
.pmodal{position:fixed;inset:0;z-index:4000;display:none;align-items:center;justify-content:center;padding:24px}
.pmodal.open{display:flex}
.pm-back{position:absolute;inset:0;background:rgba(12,16,22,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.pm-box{position:relative;z-index:1;background:var(--white);border-radius:12px;max-width:1040px;width:100%;max-height:90vh;overflow:hidden;display:grid;grid-template-columns:1.35fr 1fr;box-shadow:0 40px 100px -30px rgba(0,0,0,.6)}
.pm-close{position:absolute;top:14px;right:14px;z-index:5;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:var(--white);color:var(--ink);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.pm-close:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.pm-media{background:var(--paper-2);display:flex;flex-direction:column;min-width:0}
.pm-mainwrap{position:relative;flex:1;display:flex;align-items:center;justify-content:center;background:#0e131a;overflow:hidden;min-height:260px}
.pm-main{max-width:100%;max-height:56vh;object-fit:contain;display:block}
.pm-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;border:none;background:rgba(255,255,255,.9);color:var(--ink);font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.pm-arrow:hover{background:#fff}
.pm-prev{left:12px}.pm-next{right:12px}
.pm-thumbs{display:flex;gap:8px;padding:12px;background:var(--paper);overflow-x:auto;border-top:1px solid var(--line)}
.pm-thumbs img{height:52px;width:74px;object-fit:cover;border-radius:4px;border:2px solid transparent;cursor:pointer;opacity:.65;transition:.2s;flex:none}
.pm-thumbs img.active,.pm-thumbs img:hover{opacity:1;border-color:var(--red)}
.pm-cap{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.06em;color:var(--muted);padding:0 12px 10px;background:var(--paper)}
.pm-info{padding:40px 36px;overflow-y:auto}
.pm-cat{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--red);margin-bottom:14px}
.pm-title{font-size:24px;font-weight:600;margin-bottom:8px;line-height:1.2}
.pm-meta{font-family:'IBM Plex Mono';font-size:11.5px;letter-spacing:.05em;color:var(--muted);margin-bottom:22px}
.pm-credit{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.pm-credit .cl{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.pm-credit .chip{display:inline-flex;align-items:center;gap:7px;font-family:'IBM Plex Mono';font-size:11px;color:var(--ink-soft);background:var(--paper-2);border:1px solid var(--line);padding:6px 12px;border-radius:20px}
.pm-credit .chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue)}
.pm-credit .chip:nth-child(3)::before{background:var(--red)}
.pm-credit[hidden]{display:none}
.pm-desc{font-size:15px;color:var(--ink-soft);margin-bottom:24px}
.pm-specs{list-style:none;border-top:1px solid var(--line);padding-top:18px}
.pm-specs li{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:var(--ink);padding:7px 0}
.pm-specs li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--blue);margin-top:6px;flex:none}
body.pm-lock{overflow:hidden}
@media(max-width:820px){
  .pm-box{grid-template-columns:1fr;max-height:92vh;overflow-y:auto}
  .pm-main{max-height:38vh}
  .pm-info{padding:26px 24px}
}


/* about */
#about{background:var(--white)}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.about-grid h2{font-size:clamp(26px,3.6vw,40px);font-weight:600;margin:16px 0 20px;line-height:1.12}
.about-grid p{color:var(--ink-soft);font-size:15.5px;margin-bottom:16px}
.about-cta{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap}
.about-vis{position:relative;aspect-ratio:4/5;border:1px solid var(--line);border-radius:10px;background:var(--paper);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;overflow:hidden}
.about-vis .g{position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:30px 30px;opacity:.45}
.about-vis img{position:relative;width:32%}
.about-vis .tg{position:relative;font-family:'IBM Plex Mono';font-size:9.5px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;text-align:center;padding:0 16px}
/* nav active + featured + page */
.navlinks a.active{color:var(--ink)}
.navlinks a.active::after{width:100%}
.sec-head a.num-link{font-family:'IBM Plex Mono';font-size:12px;letter-spacing:.06em;color:var(--red);white-space:nowrap;border-bottom:1px solid transparent;transition:.2s;align-self:flex-end}
.sec-head a.num-link:hover{border-color:var(--red)}
a.proj{display:block;color:inherit;text-decoration:none}
.proj.viewall .thumb{display:flex;align-items:center;justify-content:center;background:var(--ink);aspect-ratio:4/3}
.proj.viewall .thumb span{color:#fff;font-family:'IBM Plex Sans';font-weight:600;font-size:16px}
.proj.viewall:hover .thumb{background:var(--red)}
.page-top{padding-top:150px!important}
.page-hero{padding:150px 0 8px;background:var(--paper);position:relative;overflow:hidden}
.page-hero .eyebrow{margin-bottom:14px}
.page-hero h1{font-size:clamp(34px,5vw,58px);font-weight:700;letter-spacing:-.02em}
.page-hero p{color:var(--ink-soft);max-width:42em;margin-top:14px;font-size:16px}
@media(max-width:900px){ .about-grid{grid-template-columns:1fr;gap:36px} }

.langsw{display:inline-flex;align-items:center;font-family:'IBM Plex Mono';font-size:12px;border:1px solid var(--line);border-radius:5px;overflow:hidden}
.langsw a{padding:6px 11px;color:var(--muted);cursor:pointer;transition:.2s;line-height:1}
.langsw a.on{background:var(--ink);color:#fff}
.langsw a:not(.on):hover{color:var(--ink);background:var(--paper-2)}
/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  .method-grid,.ct-grid{grid-template-columns:1fr;gap:40px}
  .hero-inner{display:flex!important;flex-direction:column!important;gap:26px;align-items:stretch!important}
  .hero-copy{order:2!important}
  .bim-wrap{order:1!important;width:100%!important;max-width:300px!important;margin:4px auto 8px!important;position:relative!important}
  .hero{min-height:auto;align-items:flex-start;overflow:visible;padding:118px 0 50px}
  .bim-wrap .tag,.bim-wrap .tag2{display:none}
  .bim{overflow:visible}
  .hero-copy{text-align:center;display:flex;flex-direction:column;align-items:center}
  .hero .eyebrow{justify-content:center}
  .hero h1{width:100%}
  .hero p.lead{margin-left:auto;margin-right:auto}
  .hero .cta{justify-content:center}
  .nav{height:72px;padding:0 20px}
  .brand img{height:50px}
  .svc-grid,.team-grid{grid-template-columns:1fr}
  .proj-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:26px 20px}
  .tools-grid{grid-template-columns:1fr 1fr}
  .stats{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start}
  .navlinks{position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:flex-start;background:rgba(244,246,250,.98);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:28px 30px 38px;gap:22px;border-bottom:1px solid var(--line);
    transform:translateY(-120%);transition:transform .4s var(--ease)}
  body.menu-open .navlinks{transform:translateY(0)}
  .navlinks .btn{width:100%;justify-content:center}
  .burger{display:block}
  .pad{padding:84px 0}
  .foot-top{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto;transition:none!important}
  .reveal{opacity:1;transform:none}
  .bim .floor{opacity:1;transform:none}
  .bim .pl{opacity:.85}
  .bim .col,.bim .edge,.bim .duct{stroke-dashoffset:0}
  .bim .floor,.bim .furn,.bim .ahu,.bim .flow,.bim .envelope,.bim .shadow,.bim .dif{opacity:1;transform:none}
  .bim .plateedge,.bim .wall,.bim .duct{stroke-dashoffset:0}
  .bim .roof,.bim .facade,.bim .ahu,.bim .gloss,.bim .flow,.bim .shadow{opacity:1;transform:none}
  .bim .gloss{stroke-dashoffset:0}
}

#pre{position:fixed;inset:0;z-index:3000;background:var(--paper);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;transition:opacity .7s var(--ease),visibility .7s}
#pre.done{opacity:0;visibility:hidden;pointer-events:none}
#pre .pl-logo{position:relative;width:76px;display:flex}
#pre .pl-logo img{width:100%;display:block;opacity:0;animation:plrise .9s var(--ease) forwards .15s;filter:drop-shadow(0 8px 22px rgba(20,30,45,.12))}
#pre .pl-logo .scan{position:absolute;left:-16%;right:-16%;height:2px;top:0;background:var(--red);box-shadow:0 0 12px rgba(224,72,77,.7);opacity:0;animation:plscan 1.5s var(--ease) .35s 1}
#pre .pl-bar{width:150px;height:2px;background:var(--line);border-radius:2px;overflow:hidden}
#pre .pl-bar i{display:block;height:100%;width:38%;background:var(--red);border-radius:2px;animation:plload 1.1s var(--ease) infinite}
#pre .pl-txt{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
@keyframes plrise{from{opacity:0;transform:translateY(10px) scale(.94)}to{opacity:1;transform:none}}
@keyframes plscan{0%{top:2%;opacity:0}12%{opacity:1}88%{opacity:1}100%{top:98%;opacity:0}}
@keyframes plload{0%{transform:translateX(-130%)}100%{transform:translateX(330%)}}
@media(prefers-reduced-motion:reduce){#pre .pl-logo img{opacity:1;animation:none}#pre .pl-logo .scan{display:none}#pre .pl-bar i{animation:none}}