:root{
  --blue:#1B1FFF;--blue-dk:#1215D4;--blue-mid:#4B4EFF;
  --blue-glow:rgba(27,31,255,.18);--blue-sub:rgba(27,31,255,.07);
  --dark:#07090F;--dark2:#0C1020;--dark3:#111629;
  --light:#F9FAFF;--g1:#ECEEF8;--g2:#9098B8;--g3:#565E80;
  --white:#FFFFFF;--txt:#07090F;--txt-lt:#E8EBF8;
  --fD:'Syne',sans-serif;--fB:'Barlow',sans-serif;
  --fC:'Barlow Condensed',sans-serif;--fM:'JetBrains Mono',monospace;
  --nav-h:68px;--r:4px;--rl:10px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:var(--fB);background:var(--dark);color:var(--txt-lt);overflow-x:hidden;-webkit-font-smoothing:antialiased;}
img{display:block;max-width:100%;}
a{text-decoration:none;color:inherit;}
button{cursor:pointer;border:none;background:none;font-family:inherit;}

/* NAV */
nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:200;
  display:flex;align-items:center;justify-content:space-between;padding:0 48px;
  background:rgba(7,9,15,.88);backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(27,31,255,.1);
}
.nav-logo img{height:34px;width:auto;}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none;}
.nav-links a{
  font-family:var(--fC);font-size:12px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--g2);
  transition:color .2s;position:relative;
}
.nav-links a::after{
  content:'';position:absolute;bottom:-3px;left:0;right:0;
  height:1px;background:var(--blue);transform:scaleX(0);transition:transform .2s;
}
.nav-links a:hover,.nav-links a.active{color:var(--white);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{
  font-family:var(--fC);font-size:12px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;
  background:var(--blue);color:var(--white);
  padding:9px 22px;border-radius:var(--r);
  transition:background .2s,transform .15s;
}
.nav-cta:hover{background:var(--blue-dk);transform:translateY(-1px);}

/* TOPO CANVAS */
.topo-bg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;display:block;}

/* HERO BASE */
.hero{
  position:relative;min-height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  overflow:hidden;background:var(--dark);
}
.hero-glow{
  position:absolute;width:700px;height:700px;border-radius:50%;
  background:radial-gradient(circle,rgba(27,31,255,.10) 0%,transparent 68%);
  top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;
}
.hero-content{position:relative;z-index:2;text-align:center;padding:0 24px;}
.hero-logo{width:200px;height:auto;margin:0 auto 44px;}
.hero-eyebrow{
  font-family:var(--fC);font-size:13px;font-weight:500;
  letter-spacing:.38em;text-transform:uppercase;color:var(--g2);margin-bottom:14px;
}
.hero-h1{
  font-family:var(--fD);font-size:clamp(52px,8.5vw,100px);
  font-weight:800;line-height:.92;letter-spacing:-.025em;
  color:var(--white);margin-bottom:40px;
}
.hero-h1 em{font-style:normal;color:var(--blue);}
.hero-btns{display:flex;gap:14px;justify-content:center;}

/* PAGE HERO (clips full-size topo, shows top portion only) */
.page-hero{
  position:relative;
  height:44vh;min-height:320px;
  overflow:hidden;
  background:var(--dark);
  display:flex;flex-direction:column;align-items:center;justify-content:flex-end;
  padding-bottom:56px;
}
.page-hero .page-title{
  font-family:var(--fD);font-size:clamp(36px,5vw,64px);
  font-weight:800;letter-spacing:-.025em;color:var(--white);
  position:relative;z-index:2;margin-bottom:12px;
}
.page-hero .page-title em{font-style:normal;color:var(--blue);}
.page-hero .page-sub{
  font-family:var(--fC);font-size:13px;font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;color:var(--g2);
  position:relative;z-index:2;
}

/* BUTTONS */
.btn-solid{
  font-family:var(--fC);font-size:13px;font-weight:600;
  letter-spacing:.13em;text-transform:uppercase;
  background:var(--blue);color:var(--white);
  padding:14px 34px;border-radius:var(--r);
  transition:background .2s,transform .15s,box-shadow .2s;display:inline-block;
}
.btn-solid:hover{background:var(--blue-dk);transform:translateY(-2px);box-shadow:0 10px 28px rgba(27,31,255,.32);}
.btn-outline{
  font-family:var(--fC);font-size:13px;font-weight:600;
  letter-spacing:.13em;text-transform:uppercase;
  color:var(--g2);padding:14px 34px;
  border:1px solid rgba(255,255,255,.13);border-radius:var(--r);
  transition:color .2s,border-color .2s;display:inline-block;
}
.btn-outline:hover{color:var(--white);border-color:rgba(255,255,255,.32);}

/* SECTION HELPERS */
.inner{max-width:1400px;margin:0 auto;padding:100px 48px;}
.label{display:block;font-family:var(--fM);font-size:10px;font-weight:500;letter-spacing:.26em;text-transform:uppercase;color:var(--blue);margin-bottom:12px;}
.rule{width:36px;height:2px;background:var(--blue);margin-bottom:20px;}
.sh{font-family:var(--fD);font-size:clamp(30px,5vw,54px);font-weight:800;letter-spacing:-.02em;line-height:1;margin-bottom:48px;}
.sh.lt{color:var(--txt);}
.sh.dk{color:var(--white);}

/* SERVICES */
#services{background:var(--dark2);}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;}
@media(max-width:1000px){.svc-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.svc-grid{grid-template-columns:1fr;}}
.sc{
  background:var(--dark3);padding:40px 32px;
  position:relative;overflow:hidden;transition:background .3s;
}
.sc::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .4s ease;
}
.sc:hover{background:#131828;}
.sc:hover::before{transform:scaleX(1);}
.sc-num{font-family:var(--fM);font-size:10px;letter-spacing:.22em;color:var(--blue);margin-bottom:24px;display:block;}
.sc-ico{width:36px;height:36px;color:var(--blue);margin-bottom:18px;}
.sc-title{font-family:var(--fD);font-size:18px;font-weight:700;color:var(--white);line-height:1.25;}

/* GALLERY */
#work-page{background:var(--light);}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:36px;}
.fb{
  font-family:var(--fC);font-size:12px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;
  padding:7px 18px;border:1px solid var(--g1);border-radius:2px;
  color:var(--g3);background:var(--white);transition:all .2s;
}
.fb:hover{border-color:var(--blue);color:var(--blue);}
.fb.on{background:var(--blue);border-color:var(--blue);color:var(--white);}
.grid{columns:3;column-gap:14px;}
@media(max-width:1024px){.grid{columns:2;}}
@media(max-width:600px){.grid{columns:1;}}
.gi{
  break-inside:avoid;margin-bottom:14px;border-radius:var(--r);
  overflow:hidden;cursor:pointer;position:relative;background:var(--g1);
  opacity:0;transform:translateY(14px);transition:opacity .4s,transform .4s;
}
.gi.vis{opacity:1;transform:translateY(0);}
.gi img{width:100%;height:auto;display:block;transition:transform .45s ease;}
.gi-ov{position:absolute;inset:0;background:rgba(7,9,15,.72);display:flex;align-items:flex-end;padding:14px;opacity:0;transition:opacity .3s;}
.gi:hover img{transform:scale(1.05);}
.gi:hover .gi-ov{opacity:1;}
.gi-tag{font-family:var(--fM);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--blue-mid);padding:3px 8px;border:1px solid var(--blue-mid);border-radius:2px;}
.lb{position:fixed;inset:0;z-index:500;background:rgba(7,9,15,.96);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s;}
.lb.open{opacity:1;pointer-events:all;}
.lb img{max-width:90vw;max-height:90vh;object-fit:contain;border-radius:var(--r);}
.lb-x{position:absolute;top:24px;right:32px;font-size:28px;color:var(--g2);cursor:pointer;transition:color .2s;font-family:var(--fM);line-height:1;}
.lb-x:hover{color:var(--white);}

/* SUBMIT / FORM */
#submit-page{background:var(--light);}
.sub-layout{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;}
@media(max-width:900px){.sub-layout{grid-template-columns:1fr;}}
.form{display:flex;flex-direction:column;gap:14px;}
.fg{display:flex;flex-direction:column;gap:5px;}
.fg label{font-family:var(--fM);font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:var(--g3);}
.fg input,.fg textarea{
  font-family:var(--fB);font-size:15px;color:var(--txt);
  background:var(--white);border:1px solid var(--g1);
  border-radius:var(--r);padding:11px 14px;outline:none;
  transition:border-color .2s;width:100%;
}
.fg input:focus,.fg textarea:focus{border-color:var(--blue);}
.fg textarea{resize:vertical;min-height:96px;}
.sub-btn{
  font-family:var(--fC);font-size:13px;font-weight:600;
  letter-spacing:.13em;text-transform:uppercase;
  background:var(--blue);color:var(--white);
  padding:15px 28px;border-radius:var(--r);width:100%;
  transition:background .2s,transform .15s;
}
.sub-btn:hover{background:var(--blue-dk);transform:translateY(-1px);}
.sub-btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.status{font-family:var(--fM);font-size:11px;padding:10px 14px;border-radius:var(--r);display:none;}
.status.ok{display:block;background:rgba(0,200,100,.1);border:1px solid rgba(0,200,100,.2);color:#00C864;}
.status.err{display:block;background:rgba(255,60,60,.1);border:1px solid rgba(255,60,60,.2);color:#FF3C3C;}
.dz{border:2px dashed var(--g1);border-radius:var(--rl);padding:44px 28px;text-align:center;cursor:pointer;background:var(--white);transition:border-color .2s,background .2s;}
.dz:hover,.dz.over{border-color:var(--blue);background:var(--blue-sub);}
.dz-ico{width:46px;height:46px;margin:0 auto 14px;color:var(--blue);opacity:.5;}
.dz-txt{font-family:var(--fC);font-size:15px;font-weight:600;color:var(--g3);margin-bottom:6px;}
.dz-sub{font-size:13px;color:var(--g2);}
.dz-tags{display:flex;gap:8px;justify-content:center;margin-top:14px;flex-wrap:wrap;}
.tag{font-family:var(--fM);font-size:9px;letter-spacing:.1em;padding:3px 9px;border:1px solid var(--g1);border-radius:2px;color:var(--g3);}
.flist{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.fi{display:flex;align-items:center;justify-content:space-between;padding:9px 13px;background:var(--white);border:1px solid var(--g1);border-radius:var(--r);}
.fi-name{font-family:var(--fM);font-size:11px;color:var(--txt);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:240px;}
.fi-rm{color:var(--g2);font-size:18px;line-height:1;padding:0 3px;transition:color .2s;}
.fi-rm:hover{color:#FF3B3B;}

/* CONTACT STRIP */
.contact-strip{background:var(--dark);border-top:1px solid rgba(27,31,255,.12);padding:60px 48px;}
.contact-inner{max-width:800px;margin:0 auto;text-align:center;}
.contact-title{font-family:var(--fD);font-size:32px;font-weight:800;color:var(--white);margin-bottom:32px;}
.contact-links{display:flex;gap:48px;justify-content:center;flex-wrap:wrap;}
.contact-links a{
  display:flex;flex-direction:column;gap:6px;align-items:center;
  font-family:var(--fC);font-size:16px;font-weight:600;
  letter-spacing:.08em;color:var(--white);
  transition:color .2s;
}
.contact-links a span{font-family:var(--fM);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);}
.contact-links a:hover{color:var(--blue-mid);}

/* VIEWER */
#viewer-page{background:var(--dark);}
.vc{border:1px solid rgba(27,31,255,.18);border-radius:var(--rl);overflow:hidden;position:relative;background:var(--dark2);min-height:520px;}
.vdz{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;cursor:pointer;transition:background .2s;}
.vdz:hover,.vdz.over{background:rgba(27,31,255,.04);}
.vdz.hide{display:none;}
.vdz-ico{width:54px;height:54px;color:var(--blue);opacity:.45;}
.vdz-txt{font-family:var(--fC);font-size:16px;font-weight:600;color:var(--g2);letter-spacing:.06em;}
.vdz-sub{font-family:var(--fM);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--g3);}
#dxf-canvas{width:100%;display:none;}
#dxf-canvas.vis{display:block;}
#aps-viewer{width:100%;height:600px;display:none;position:relative;}
#aps-viewer.vis{display:block;}
.v-loading{position:absolute;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:20px;background:var(--dark2);}
.v-loading.vis{display:flex;}
.v-prog-wrap{width:280px;}
.v-prog-label{font-family:var(--fM);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--g2);margin-bottom:12px;text-align:center;}
.v-prog-bar{height:2px;background:rgba(255,255,255,.08);border-radius:2px;overflow:hidden;}
.v-prog-fill{height:100%;width:0%;background:var(--blue);transition:width .4s ease;border-radius:2px;}
.vtb{position:absolute;top:14px;right:14px;display:none;gap:8px;z-index:10;}
.vtb.vis{display:flex;}
.tb-btn{font-family:var(--fM);font-size:10px;letter-spacing:.1em;padding:6px 12px;border:1px solid rgba(255,255,255,.12);border-radius:var(--r);color:var(--g2);background:rgba(7,9,15,.82);transition:all .2s;}
.tb-btn:hover{border-color:var(--blue);color:var(--white);}

/* FOOTER */
footer{background:var(--dark);border-top:1px solid rgba(27,31,255,.10);padding:44px 48px;}
.foot{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px;}
.foot img{height:30px;width:auto;opacity:.65;}
.foot-links{display:flex;gap:28px;}
.foot-links a{font-family:var(--fC);font-size:13px;letter-spacing:.07em;color:var(--g2);transition:color .2s;}
.foot-links a:hover{color:var(--white);}
.foot-area{font-family:var(--fM);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--g3);}

/* HAMBURGER */
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none;}
.hamburger span{display:block;width:22px;height:2px;background:var(--g2);border-radius:1px;transition:transform .25s,opacity .25s;}

/* Hamburger open state */
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media(max-width:820px){
  nav{padding:0 20px;}
  .hamburger{display:flex;margin-left:auto;}
  .nav-cta{display:none;}
  .nav-links{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(7,9,15,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);flex-direction:column;padding:20px 24px 28px;gap:18px;border-bottom:1px solid rgba(27,31,255,.15);z-index:199;}
  .nav-links.open{display:flex;}
  .hero-logo{width:150px;margin-bottom:28px;}
  .hero-h1{font-size:clamp(40px,12vw,64px);}
  .hero-btns{flex-direction:column;align-items:center;gap:12px;}
  .btn-solid,.btn-outline{padding:13px 28px;font-size:12px;}
  .page-hero{height:36vh;min-height:260px;padding-bottom:36px;}
  .page-title{font-size:clamp(28px,8vw,48px);}
  .inner{padding:56px 20px;}
  .contact-title{font-size:24px;}
  .foot{padding:32px 20px;}
}
@media(max-width:500px){
  .svc-grid{grid-template-columns:1fr;}
  .grid{columns:1;}
  nav{padding:0 16px;}
}