/* ============================================================
   РЕМЭЛАВТО — design tokens
   Palette drawn from the brand mark: graphite + brushed steel + weld-spark orange
   Display: Oswald (stamped/stencil metal-plate lettering)
   Body:    Inter
   Utility: JetBrains Mono (specs, dimensions, tolerances — nameplate data)
   ============================================================ */

:root{
  --ink:        #121418;
  --ink-2:      #191c22;
  --panel:      #1e222a;
  --panel-2:    #262b34;
  --steel:      #454c59;
  --steel-2:    #5b6373;
  --steel-light:#9aa3b2;
  --line:       #333945;

  --paper:      #eceef0;
  --paper-2:    #dde0e4;
  --white:      #f8f8f6;

  --spark:      #e2792e;
  --spark-2:    #f2924a;
  --spark-dim:  #a85a20;

  --text-on-dark: #e9eaec;
  --text-on-dark-mute: #a6adb9;
  --text-on-light: #1a1d22;
  --text-on-light-mute: #565f6d;

  --f-display: 'Oswald', 'Arial Narrow', sans-serif;
  --f-body: 'Inter', -apple-system, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius: 2px;
  --container: 1240px;
  --edge: 6px solid var(--spark);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--f-body);
  background:var(--paper);
  color:var(--text-on-light);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}

img{ max-width:100%; display:block; }
.zoomable{ cursor:zoom-in; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-family:var(--f-display); font-weight:600; letter-spacing:.01em; }

:focus-visible{
  outline:3px solid var(--spark);
  outline-offset:2px;
}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

.eyebrow{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--spark);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px; height:2px;
  background:var(--spark);
  display:inline-block;
}

.section-title{
  font-size:clamp(28px, 3.6vw, 44px);
  text-transform:uppercase;
  line-height:1.08;
  color:var(--text-on-light);
}
.section-title.on-dark{ color:var(--white); }

.section-lead{
  max-width:64ch;
  color:var(--text-on-light-mute);
  font-size:16.5px;
  margin-top:16px;
}
.section-lead.on-dark{ color:var(--text-on-dark-mute); }

section{ padding:96px 0; }
@media (max-width:760px){ section{ padding:64px 0; } }

.section-head{
  margin-bottom:52px;
}
.section-head.split{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:40px;
  flex-wrap:wrap;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--f-mono);
  font-size:13.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  padding:15px 26px;
  border-radius:var(--radius);
  border:1px solid transparent;
  transition:transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--spark);
  color:#191305;
  font-weight:700;
}
.btn-primary:hover{ background:var(--spark-2); transform:translateY(-1px); }
.btn-ghost{
  border-color:var(--steel-2);
  color:var(--text-on-dark);
}
.btn-ghost:hover{ border-color:var(--spark); color:var(--spark-2); }
.btn-dark{
  border-color:var(--line);
  color:var(--text-on-light);
}
.btn-dark:hover{ border-color:var(--spark); color:var(--spark-dim); }
.btn-wide{ width:100%; justify-content:center; }
.btn[disabled]{ opacity:.6; cursor:progress; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(18,20,24,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:88px;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.brand img{
  width:60px; height:60px;
  border-radius:4px;
  object-fit:cover;
  flex-shrink:0;
}
.brand-name{
  font-family:var(--f-display);
  font-size:19px;
  letter-spacing:.04em;
  color:var(--white);
  text-transform:uppercase;
  line-height:1;
}
.brand-sub{
  font-family:var(--f-mono);
  font-size:10.5px;
  color:var(--text-on-dark-mute);
  letter-spacing:.05em;
  margin-top:4px;
}
.main-nav{
  display:flex;
  gap:clamp(16px, 1.8vw, 30px);
  flex-wrap:nowrap;
  min-width:0;
}
.main-nav a{
  font-size:13.5px;
  color:var(--text-on-dark-mute);
  transition:color .15s ease;
  position:relative;
  white-space:nowrap;
}
.main-nav a:hover{ color:var(--white); }
.header-actions{
  display:flex;
  align-items:center;
  gap:20px;
  flex-shrink:0;
}
.header-phone{
  font-family:var(--f-mono);
  font-size:14.5px;
  color:var(--white);
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  line-height:1.3;
  white-space:nowrap;
  flex-shrink:0;
}
.header-phone span{
  font-size:10px;
  color:var(--text-on-dark-mute);
  letter-spacing:.1em;
  text-transform:uppercase;
  white-space:nowrap;
}
.nav-toggle{
  display:none;
  background:none; border:1px solid var(--line);
  width:44px; height:44px;
  color:var(--white);
  align-items:center; justify-content:center;
  border-radius:2px;
}
.nav-toggle svg{ width:20px; height:20px; }

@media (max-width: 1140px){
  .header-phone{ display:none; }
}

@media (max-width: 980px){
  .main-nav{ display:none; }
  .nav-toggle{ display:flex; }
  .header-actions{ gap:12px; }
  .header-actions > .btn-primary{ display:none; }
}

@media (max-width: 460px){
  .brand-sub{ display:none; }
  .brand img{ width:48px; height:48px; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;
  background:var(--ink);
  color:var(--white);
  overflow:hidden;
  padding-top:110px;
  padding-bottom:0;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
}
.hero-copy{ padding-bottom:70px; }
.hero-kicker{
  font-family:var(--f-mono);
  font-size:13px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--spark-2);
  margin-bottom:22px;
  display:flex; align-items:center; gap:10px;
}
.hero-kicker::before{
  content:"";
  width:9px;height:9px;
  background:var(--spark);
  display:inline-block;
  animation:blink 2.4s ease-in-out infinite;
}
@keyframes blink{ 0%,100%{opacity:1;} 50%{opacity:.25;} }

.hero h1{
  font-size:clamp(38px, 5.6vw, 68px);
  text-transform:uppercase;
  line-height:1.02;
  letter-spacing:.005em;
}
.hero h1 em{
  font-style:normal;
  color:var(--spark);
}
.hero-desc{
  margin-top:26px;
  max-width:52ch;
  color:var(--text-on-dark-mute);
  font-size:17px;
}
.hero-cta{
  margin-top:38px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

.hero-plate{
  margin-top:52px;
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:2px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
}
.hero-plate div{
  padding:20px 22px;
  border-right:1px solid var(--line);
}
.hero-plate div:last-child{ border-right:none; }
.hero-plate b{
  display:block;
  font-family:var(--f-mono);
  font-size:24px;
  color:var(--spark-2);
  letter-spacing:.01em;
}
.hero-plate span{
  display:block;
  font-size:11.5px;
  color:var(--text-on-dark-mute);
  text-transform:uppercase;
  letter-spacing:.06em;
  margin-top:6px;
}

.hero-photo{
  position:relative;
  height:100%;
  min-height:420px;
}
.hero-photo-frame{
  position:relative;
  height:100%;
  border-left:1px solid var(--line);
}
.hero-photo-frame img{
  width:100%; height:100%;
  object-fit:cover;
  min-height:460px;
  filter:saturate(1.02) contrast(1.03);
}
.hero-photo-frame::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(18,20,24,0) 40%, rgba(18,20,24,.85) 100%), linear-gradient(90deg, rgba(18,20,24,.55) 0%, rgba(18,20,24,0) 30%);
}
.hero-photo-tag{
  position:absolute;
  left:24px; bottom:24px;
  z-index:2;
  font-family:var(--f-mono);
  font-size:11.5px;
  color:var(--text-on-dark-mute);
  background:rgba(18,20,24,.7);
  border:1px solid var(--line);
  padding:8px 12px;
  letter-spacing:.03em;
}

.cut-divider{
  height:64px;
  background:var(--ink);
  position:relative;
  overflow:hidden;
}
.cut-divider svg{ position:absolute; bottom:-1px; left:0; width:100%; height:65px; }

@media (max-width:980px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-photo{ min-height:280px; order:-1; }
  .hero-photo-frame{ border-left:none; }
  .hero-photo-frame img{ min-height:280px; }
  .hero-plate{ grid-template-columns:1fr 1fr; }
  .hero-plate div:nth-child(2){ border-right:none; }
}
@media (max-width:520px){
  .hero-plate{ grid-template-columns:1fr; }
  .hero-plate div{ border-right:none; border-bottom:1px solid var(--line); }
  .hero-plate div:last-child{ border-bottom:none; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about{ background:var(--paper); }
.about-grid{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:60px;
  align-items:start;
}
.about-photo{
  position:relative;
}
.about-photo img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border-radius:2px;
}
.about-photo-cap{
  font-family:var(--f-mono);
  font-size:11.5px;
  color:var(--text-on-light-mute);
  margin-top:12px;
  letter-spacing:.02em;
}
.about-text p{
  font-size:16.5px;
  color:var(--text-on-light-mute);
}
.about-list{
  margin-top:32px;
  display:grid;
  gap:0;
  border-top:1px solid var(--paper-2);
}
.about-list li{
  padding:16px 0;
  border-bottom:1px solid var(--paper-2);
  display:flex;
  gap:16px;
  align-items:flex-start;
  font-size:15.5px;
}
.about-list li::before{
  content:"";
  width:7px; height:7px;
  margin-top:8px;
  background:var(--spark);
  flex-shrink:0;
}

/* ============================================================
   SERVICES — nameplate cards (signature element)
   ============================================================ */
.services{ background:var(--ink); color:var(--white); }
.svc-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.svc-card{
  background:var(--ink-2);
  padding:30px 26px 26px;
  position:relative;
  min-height:220px;
  display:flex;
  flex-direction:column;
  transition:background .2s ease;
}
.svc-card:hover{ background:var(--panel); }
.svc-card::before,.svc-card::after{
  content:"";
  position:absolute;
  width:6px; height:6px;
  border-radius:50%;
  background:var(--steel);
  top:10px;
}
.svc-card::before{ left:10px; }
.svc-card::after{ right:10px; }
.svc-num{
  font-family:var(--f-mono);
  font-size:11px;
  color:var(--spark-2);
  letter-spacing:.08em;
}
.svc-card h3{
  font-size:19px;
  text-transform:uppercase;
  margin-top:14px;
  line-height:1.15;
}
.svc-card p{
  margin-top:12px;
  font-size:14px;
  color:var(--text-on-dark-mute);
  flex-grow:1;
}
@media (max-width:980px){
  .svc-grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:560px){
  .svc-grid{ grid-template-columns:1fr; }
}

/* ============================================================
   EQUIPMENT — nameplate / shield cards
   ============================================================ */
.equipment{ background:var(--paper); }
.eq-tabs{
  display:flex;
  gap:10px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.eq-tab{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.05em;
  text-transform:uppercase;
  padding:10px 18px;
  border:1px solid var(--paper-2);
  background:var(--white);
  color:var(--text-on-light-mute);
  border-radius:2px;
  transition:.15s ease;
}
.eq-tab.active, .eq-tab:hover{
  border-color:var(--spark);
  color:var(--spark-dim);
}

.eq-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:22px;
}
.eq-plate{
  background:var(--white);
  border:1px solid var(--paper-2);
  border-radius:2px;
  overflow:hidden;
  position:relative;
}
.eq-plate-photo{
  aspect-ratio:4/3;
  overflow:hidden;
  position:relative;
}
.eq-plate-photo img{
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.eq-plate:hover .eq-plate-photo img{ transform:scale(1.06); }
.eq-plate-body{
  padding:18px 18px 20px;
  border-top:3px solid var(--spark);
  position:relative;
}
.eq-plate-body::before,.eq-plate-body::after{
  content:"";
  position:absolute;
  top:-3px;
  width:9px; height:9px;
  border-radius:50%;
  background:var(--paper);
  border:2px solid var(--spark);
}
.eq-plate-body::before{ left:14px; }
.eq-plate-body::after{ right:14px; }
.eq-plate h4{
  font-size:16.5px;
  text-transform:uppercase;
  letter-spacing:.01em;
}
.eq-plate .eq-spec{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--text-on-light-mute);
  margin-top:8px;
  line-height:1.5;
}
.eq-plate .eq-tag{
  display:inline-block;
  margin-top:12px;
  font-family:var(--f-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--spark-dim);
  border:1px solid var(--paper-2);
  padding:4px 8px;
}

@media (max-width:980px){ .eq-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .eq-grid{ grid-template-columns:1fr; } }

/* ============================================================
   TECH / PLASMA FEATURE
   ============================================================ */
.tech{ background:var(--ink); color:var(--white); }
.tech-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  margin-top:20px;
}
.tech-photo{ position:relative; overflow:hidden; background:var(--ink-2); }
.tech-photo img{ width:100%; height:100%; object-fit:cover; min-height:280px; }
.tech-copy{
  background:var(--ink-2);
  padding:44px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.tech-copy h3{
  font-size:26px;
  text-transform:uppercase;
  color:var(--white);
}
.tech-copy p{
  margin-top:16px;
  color:var(--text-on-dark-mute);
  font-size:15.5px;
}
.tech-specs{
  margin-top:24px;
  display:flex;
  gap:28px;
  flex-wrap:wrap;
}
.tech-specs div b{
  display:block;
  font-family:var(--f-mono);
  color:var(--spark-2);
  font-size:20px;
}
.tech-specs div span{
  font-size:11.5px;
  color:var(--text-on-dark-mute);
  text-transform:uppercase;
  letter-spacing:.05em;
}
@media (max-width:860px){ .tech-grid{ grid-template-columns:1fr; } .tech-photo img{ min-height:220px; } }

/* ============================================================
   PRODUCTS GALLERY
   ============================================================ */
.products{ background:var(--paper); }
.prod-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:18px;
}
.prod-item{
  position:relative;
  aspect-ratio:3/4;
  overflow:hidden;
  border-radius:2px;
}
.prod-item img{
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.prod-item:hover img{ transform:scale(1.07); }
.prod-cap{
  position:absolute; left:0; right:0; bottom:0;
  padding:16px 14px 12px;
  background:linear-gradient(0deg, rgba(18,20,24,.92), rgba(18,20,24,0));
  color:var(--white);
  font-size:12.5px;
  font-family:var(--f-mono);
  letter-spacing:.01em;
}
@media (max-width:980px){ .prod-grid{ grid-template-columns:repeat(2,1fr); } }

/* ============================================================
   ADVANTAGES
   ============================================================ */
.advantages{ background:var(--ink-2); color:var(--white); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.adv-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:44px 40px;
  margin-top:10px;
}
.adv-item{
  display:flex;
  gap:18px;
}
.adv-icon{
  flex-shrink:0;
  width:46px; height:46px;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color:var(--spark-2);
}
.adv-icon svg{ width:22px; height:22px; }
.adv-item h4{
  font-size:16px;
  text-transform:uppercase;
  color:var(--white);
}
.adv-item p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--text-on-dark-mute);
}
@media (max-width:860px){ .adv-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .adv-grid{ grid-template-columns:1fr; } }

/* ============================================================
   CONTACT
   ============================================================ */
.contact{ background:var(--paper); }
.contact-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:56px;
}
.contact-info h2{ font-size:clamp(26px,3.2vw,36px); text-transform:uppercase; }
.contact-info > p{ margin-top:14px; color:var(--text-on-light-mute); max-width:44ch; }
.contact-rows{
  margin-top:36px;
  border-top:1px solid var(--paper-2);
}
.contact-row{
  padding:18px 0;
  border-bottom:1px solid var(--paper-2);
}
.contact-row span{
  display:block;
  font-family:var(--f-mono);
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--text-on-light-mute);
  margin-bottom:6px;
}
.contact-row a, .contact-row div.val{
  font-size:18px;
  font-weight:600;
}
.contact-row a{ white-space:nowrap; }
.contact-row a:hover{ color:var(--spark-dim); }

.contact-form{
  background:var(--ink);
  padding:40px;
  border-radius:2px;
  position:relative;
}
.contact-form::before, .contact-form::after{
  content:"";
  position:absolute; top:14px;
  width:8px; height:8px; border-radius:50%;
  background:var(--ink-2); border:2px solid var(--spark);
}
.contact-form::before{ left:14px; }
.contact-form::after{ right:14px; }
.contact-form h3{
  color:var(--white);
  font-size:20px;
  text-transform:uppercase;
}
.contact-form .form-sub{
  color:var(--text-on-dark-mute);
  font-size:13.5px;
  margin-top:8px;
}
.form-grid{
  margin-top:26px;
  display:grid;
  gap:16px;
}
.field label{
  display:block;
  font-family:var(--f-mono);
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--text-on-dark-mute);
  margin-bottom:8px;
}
.field input, .field textarea{
  width:100%;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--white);
  padding:13px 14px;
  font-family:var(--f-body);
  font-size:14.5px;
  border-radius:2px;
  transition:border-color .15s ease;
}
.field input:focus, .field textarea:focus{
  border-color:var(--spark);
  outline:none;
}
.field textarea{ resize:vertical; min-height:96px; }
.form-row-2{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-consent{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:12.5px;
  color:var(--text-on-dark-mute);
  margin-top:4px;
}
.form-consent input{ margin-top:3px; }
.form-status{
  font-family:var(--f-mono);
  font-size:13px;
  margin-top:14px;
  min-height:18px;
}
.form-status.ok{ color:#7bc47f; }
.form-status.err{ color:#e8735a; }
@media (max-width:980px){ .contact-grid{ grid-template-columns:1fr; } }
@media (max-width:560px){ .form-row-2{ grid-template-columns:1fr; } .contact-form{ padding:26px; } }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  background:var(--ink);
  color:var(--text-on-dark-mute);
  padding:44px 0 30px;
  border-top:1px solid var(--line);
}
.footer-grid{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:20px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.footer-brand img{ width:34px; height:34px; border-radius:3px; }
.footer-brand b{
  font-family:var(--f-display);
  color:var(--white);
  text-transform:uppercase;
  font-size:15px;
}
.footer-meta{
  font-size:12.5px;
  display:flex;
  gap:26px;
  flex-wrap:wrap;
}
.footer-meta span{ white-space:nowrap; }
.footer-fine{
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- mobile nav drawer ---------- */
.mobile-nav{
  position:fixed; inset:0;
  background:var(--ink);
  z-index:200;
  transform:translateX(100%);
  transition:transform .3s ease;
  padding:30px 32px;
  display:flex;
  flex-direction:column;
}
.mobile-nav.open{ transform:translateX(0); }
.mobile-nav-top{ display:flex; justify-content:flex-end; }
.mobile-nav-close{
  background:none; border:1px solid var(--line);
  width:44px; height:44px; color:var(--white);
  display:flex; align-items:center; justify-content:center;
}
.mobile-nav a{
  font-family:var(--f-display);
  font-size:28px;
  text-transform:uppercase;
  color:var(--white);
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.mobile-nav-cta{ margin-top:auto; display:flex; flex-direction:column; gap:14px; }

/* reveal-on-scroll */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox-overlay{
  position:fixed; inset:0;
  background:rgba(10,11,13,.94);
  display:flex; align-items:center; justify-content:center;
  flex-direction:column;
  z-index:1000;
  opacity:0; visibility:hidden;
  transition:opacity .22s ease;
  padding:56px 24px 32px;
}
.lightbox-overlay.open{ opacity:1; visibility:visible; }
.lightbox-image{
  max-width:min(92vw, 1150px);
  max-height:78vh;
  width:auto; height:auto;
  object-fit:contain;
  border:1px solid var(--line);
  background:var(--ink-2);
}
.lightbox-caption{
  margin-top:18px;
  font-family:var(--f-mono);
  color:var(--text-on-dark-mute);
  font-size:12.5px;
  text-align:center;
  max-width:70ch;
  padding:0 16px;
}
.lightbox-close{
  position:absolute;
  top:20px; right:20px;
  width:46px; height:46px;
  border:1px solid var(--line);
  background:rgba(30,34,42,.85);
  color:var(--white);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  border-radius:2px;
}
.lightbox-close:hover{ border-color:var(--spark); color:var(--spark-2); }
.lightbox-close svg{ width:20px; height:20px; }

/* ============================================================
   TECH SUB-GRID — gas cutting alongside plasma
   ============================================================ */
.tech-sub-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-top:none;
}
.tech-sub-item{
  background:var(--ink-2);
  padding:32px 34px;
}
.tech-sub-icon{
  width:40px; height:40px;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color:var(--spark-2);
  margin-bottom:16px;
}
.tech-sub-icon svg{ width:20px; height:20px; }
.tech-sub-item h4{
  font-size:18px;
  text-transform:uppercase;
  color:var(--white);
}
.tech-sub-item p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--text-on-dark-mute);
}
@media (max-width:860px){
  .tech-sub-grid{ grid-template-columns:1fr; }
}

/* ============================================================
   FILE UPLOAD FIELD
   ============================================================ */
.field input[type=file]{
  width:100%;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-on-dark-mute);
  padding:10px 14px 10px 10px;
  font-family:var(--f-body);
  font-size:13px;
  border-radius:2px;
  cursor:pointer;
}
.field input[type=file]::file-selector-button,
.field input[type=file]::-webkit-file-upload-button{
  font-family:var(--f-mono);
  font-size:11.5px;
  letter-spacing:.05em;
  text-transform:uppercase;
  background:var(--spark);
  color:#191305;
  border:none;
  padding:9px 14px;
  border-radius:2px;
  margin-right:12px;
  cursor:pointer;
  font-weight:700;
  transition:background .15s ease;
}
.field input[type=file]:hover::file-selector-button,
.field input[type=file]:hover::-webkit-file-upload-button{ background:var(--spark-2); }
.field-hint{
  font-size:11.5px;
  color:var(--text-on-dark-mute);
  margin-top:7px;
  font-family:var(--f-mono);
}
.file-list{
  margin-top:8px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.file-list-item{
  font-family:var(--f-mono);
  font-size:11.5px;
  color:var(--spark-2);
}