/* ===========================================================
   LUMENCO — Design System
   Palette:
     --ink:      #15171C  (graphite base, not pure black)
     --paper:    #F6F4EF  (warm paper, not pure white)
     --amber:    #FFB13C  (lumen glow — primary accent)
     --amber-dim:#7A5419  (amber for dark-on-dark text)
     --ice:      #6FD3E8  (cool-white accent, used sparingly)
     --line:     #2A2D35  (hairline on dark)
     --line-lt:  #DEDACE  (hairline on light)
   Type:
     Display: "Archivo Expanded" / fallback condensed grotesk
     Body:    "Inter"
     Spec/Mono: "IBM Plex Mono"
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Archivo+Expanded:wght@600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --ink:#15171C;
  --ink-soft:#1D2027;
  --paper:#F6F4EF;
  --paper-dim:#EAE6DA;
  --amber:#FFB13C;
  --amber-dim:#7A5419;
  --ice:#6FD3E8;
  --line:#2A2D35;
  --line-lt:#DEDACE;
  --text-on-dark:#E9E7E0;
  --text-on-dark-soft:#9C9DA4;
  --max:1280px;
  --radius:2px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}

h1,h2,h3,h4{
  font-family:'Archivo Expanded',sans-serif;
  font-weight:700;
  letter-spacing:-0.01em;
  margin:0;
  text-transform:uppercase;
}

.mono{
  font-family:'IBM Plex Mono',monospace;
  font-weight:500;
  letter-spacing:0.02em;
}

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

@media (max-width:768px){
  .wrap{padding:0 20px;}
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; transition-duration:0.01ms !important;}
}

/* ===================== TOP UTILITY BAR ===================== */
.utility-bar{
  background:var(--ink);
  color:var(--text-on-dark-soft);
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  letter-spacing:0.04em;
}
.utility-bar .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  height:36px;
}
.utility-bar a{color:var(--text-on-dark-soft); transition:color .2s;}
.utility-bar a:hover{color:var(--amber);}
.utility-links{display:flex; gap:20px;}
.utility-links span{color:var(--line);}

/* ===================== HEADER / NAV ===================== */
header.site-header{
  background:var(--ink);
  position:sticky;
  top:0;
  z-index:100;
  border-bottom:1px solid var(--line);
}
.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
}
.logo{
  font-family:'Archivo Expanded',sans-serif;
  font-weight:800;
  font-size:22px;
  color:var(--paper);
  letter-spacing:0.02em;
  display:flex;
  align-items:baseline;
  gap:2px;
}
.logo .dot{color:var(--amber);}
.main-nav{
  display:flex;
  gap:36px;
  height:100%;
}
.main-nav > li{
  position:relative;
  display:flex;
  align-items:center;
  height:100%;
}
.main-nav > li > a{
  color:var(--text-on-dark);
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:8px 0;
  border-bottom:2px solid transparent;
  transition:border-color .2s, color .2s;
}
.main-nav > li > a:hover,
.main-nav > li.active > a{
  color:var(--amber);
  border-bottom-color:var(--amber);
}
.nav-cta{
  display:flex;
  align-items:center;
  gap:16px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  letter-spacing:0.05em;
  text-transform:uppercase;
  padding:12px 22px;
  border:1px solid currentColor;
  border-radius:var(--radius);
  transition:all .2s;
}
.btn-amber{
  background:var(--amber);
  color:var(--ink);
  border-color:var(--amber);
}
.btn-amber:hover{
  background:transparent;
  color:var(--amber);
}
.btn-outline-light{
  color:var(--text-on-dark);
  border-color:var(--line);
}
.btn-outline-light:hover{
  border-color:var(--amber);
  color:var(--amber);
}
.btn-outline-dark{
  color:var(--ink);
  border-color:var(--ink);
}
.btn-outline-dark:hover{
  background:var(--ink);
  color:var(--paper);
}

/* Mega menu */
.mega{
  position:absolute;
  top:100%;
  left:50%;
  transform:translateX(-50%);
  width:720px;
  background:var(--ink-soft);
  border:1px solid var(--line);
  border-top:2px solid var(--amber);
  padding:28px;
  display:none;
  grid-template-columns:repeat(3,1fr);
  gap:10px 24px;
  box-shadow:0 24px 48px rgba(0,0,0,.4);
}
.main-nav > li:hover .mega{display:grid;}
.mega a{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:10px 0;
  border-bottom:1px solid var(--line);
  color:var(--text-on-dark-soft);
  font-size:13px;
  transition:color .2s, padding-left .2s;
}
.mega a:hover{color:var(--amber); padding-left:6px;}
.mega a .cat-label{
  font-family:'IBM Plex Mono',monospace;
  font-size:10px;
  color:var(--amber-dim);
  text-transform:uppercase;
  letter-spacing:0.08em;
}

/* Mobile nav toggle */
.nav-toggle{display:none; background:none; border:none; color:var(--paper); font-size:24px;}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-cta .btn-outline-light{display:none;}
  .nav-toggle{display:block;}
}

/* ===================== HERO ===================== */
.hero{
  position:relative;
  background:var(--ink);
  color:var(--text-on-dark);
  overflow:hidden;
  padding:90px 0 110px;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:
    radial-gradient(ellipse 800px 400px at 80% 0%, rgba(255,177,60,0.14), transparent 60%);
  pointer-events:none;
}
.beam{
  position:absolute;
  top:0; left:-20%;
  width:140%;
  height:2px;
  background:linear-gradient(90deg, transparent, var(--amber) 45%, var(--amber) 55%, transparent);
  opacity:0.7;
  animation:sweep 6s ease-in-out infinite;
}
@keyframes sweep{
  0%,100%{transform:translateX(-8%) scaleX(0.85); opacity:0.3;}
  50%{transform:translateX(8%) scaleX(1); opacity:0.85;}
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:60px;
  align-items:center;
}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  letter-spacing:0.12em;
  color:var(--amber);
  text-transform:uppercase;
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:20px;
}
.eyebrow::before{
  content:'';
  width:24px;
  height:1px;
  background:var(--amber);
}
.hero h1{
  font-size:clamp(38px,5vw,64px);
  line-height:1.04;
  color:var(--paper);
  margin-bottom:24px;
}
.hero h1 em{
  font-style:normal;
  color:var(--amber);
}
.hero p.lede{
  font-size:18px;
  color:var(--text-on-dark-soft);
  max-width:480px;
  margin-bottom:36px;
}
.hero-actions{display:flex; gap:16px; flex-wrap:wrap;}
.hero-stats{
  display:flex;
  gap:40px;
  margin-top:56px;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.stat .num{
  font-family:'Archivo Expanded',sans-serif;
  font-size:32px;
  font-weight:800;
  color:var(--paper);
}
.stat .num span{color:var(--amber);}
.stat .label{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--text-on-dark-soft);
  margin-top:4px;
}
.hero-visual{
  position:relative;
  aspect-ratio:4/5;
  background:linear-gradient(160deg, #20232B, #121317);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
}
.hero-visual .frame-label{
  position:absolute;
  bottom:18px; left:18px;
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  color:var(--text-on-dark-soft);
  letter-spacing:0.05em;
}
.hero-visual .frame-corner{
  position:absolute;
  width:18px; height:18px;
  border:1px solid var(--amber-dim);
}
.fc-tl{top:14px; left:14px; border-right:none; border-bottom:none;}
.fc-br{bottom:14px; right:14px; border-left:none; border-top:none;}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{aspect-ratio:16/10;}
  .hero-stats{flex-wrap:wrap; gap:28px;}
}

/* ===================== SECTION SCAFFOLDING ===================== */
section{padding:88px 0;}
.section-dark{background:var(--ink); color:var(--text-on-dark);}
.section-paper-dim{background:var(--paper-dim);}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:48px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(28px,3.4vw,42px); line-height:1.1;}
.section-head .eyebrow{margin-bottom:14px;}
.section-head .lede{
  max-width:420px;
  color:#4A4D56;
  font-size:15px;
}
.section-dark .section-head .lede{color:var(--text-on-dark-soft);}
.section-foot{
  margin-top:44px;
  display:flex;
  justify-content:center;
}

/* ===================== PARTNER STRIP ===================== */
.partner-strip{
  background:var(--paper);
  border-top:1px solid var(--line-lt);
  border-bottom:1px solid var(--line-lt);
  padding:28px 0;
}
.partner-strip .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:40px;
  flex-wrap:wrap;
  opacity:0.55;
}
.partner-strip span{
  font-family:'Archivo Expanded',sans-serif;
  font-weight:700;
  font-size:15px;
  letter-spacing:0.03em;
  color:#5B5E66;
}
.partner-strip .ps-label{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  letter-spacing:0.08em;
  color:var(--amber-dim);
  opacity:1;
  text-transform:uppercase;
}

/* ===================== PRODUCT GRID ===================== */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:2px;}
.grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:2px;}
@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:560px){
  .grid-3, .grid-4{grid-template-columns:1fr;}
}

.cat-card{
  position:relative;
  background:var(--ink-soft);
  aspect-ratio:3/4;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:24px;
  border:1px solid var(--ink);
  transition:transform .35s ease;
}
.cat-card::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(21,23,28,0) 30%, rgba(21,23,28,0.95) 100%);
  z-index:1;
}
.cat-card img{
  position:absolute;
  inset:0;
  width:100%; height:100%;
  object-fit:cover;
  z-index:0;
  transition:transform .5s ease, opacity .3s;
  opacity:0.75;
}
.cat-card:hover img{transform:scale(1.06); opacity:0.9;}
.cat-card-content{position:relative; z-index:2;}
.cat-card .idx{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  color:var(--amber);
  letter-spacing:0.08em;
  margin-bottom:8px;
  display:block;
}
.cat-card h3{
  font-size:20px;
  color:var(--paper);
  margin-bottom:8px;
}
.cat-card p{
  color:var(--text-on-dark-soft);
  font-size:13px;
  margin-bottom:14px;
}
.cat-card .arrow-link{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--amber);
  letter-spacing:0.05em;
  display:inline-flex;
  align-items:center;
  gap:6px;
}

/* ===================== APPLICATIONS GRID ===================== */
.app-card{
  background:var(--paper);
  border:1px solid var(--line-lt);
  padding:32px 28px;
  transition:border-color .25s, transform .25s;
}
.app-card:hover{border-color:var(--amber); transform:translateY(-3px);}
.app-card .app-num{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--amber-dim);
  margin-bottom:18px;
  display:block;
}
.app-card h3{font-size:17px; margin-bottom:10px;}
.app-card p{font-size:14px; color:#54575F; margin-bottom:14px;}
.app-card a{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--ink);
  border-bottom:1px solid var(--ink);
  padding-bottom:2px;
}

/* ===================== WHY US / FEATURE LIST ===================== */
.feature-card{
  border-top:2px solid var(--line);
  padding:28px 0 8px;
  transition:border-color .25s;
}
.feature-card:hover{border-color:var(--amber);}
.feature-card .f-icon{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  color:var(--amber);
  margin-bottom:18px;
}
.feature-card h3{font-size:16px; margin-bottom:10px; color:var(--paper);}
.feature-card p{font-size:14px; color:var(--text-on-dark-soft);}

/* ===================== LOCATIONS ===================== */
.loc-card{
  background:var(--paper);
  border:1px solid var(--line-lt);
  padding:30px;
}
.loc-card .loc-tag{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  letter-spacing:0.08em;
  color:var(--amber-dim);
  text-transform:uppercase;
  margin-bottom:16px;
  display:block;
}
.loc-card h3{font-size:18px; margin-bottom:18px;}
.loc-card .loc-row{
  display:flex;
  gap:12px;
  font-size:14px;
  color:#3C3F46;
  margin-bottom:12px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line-lt);
}
.loc-card .loc-row:last-child{border-bottom:none; margin-bottom:0; padding-bottom:0;}
.loc-row .k{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  color:#9A968A;
  min-width:60px;
  text-transform:uppercase;
  letter-spacing:0.04em;
}

/* ===================== FAQ ===================== */
.faq-item{
  border-bottom:1px solid var(--line-lt);
}
.faq-q{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:24px 0;
  cursor:pointer;
  font-family:'Archivo Expanded',sans-serif;
  font-weight:700;
  font-size:16px;
  text-transform:none;
}
.faq-q .plus{
  font-family:'IBM Plex Mono',monospace;
  color:var(--amber-dim);
  font-size:20px;
  transition:transform .25s;
  flex-shrink:0;
  margin-left:20px;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg); color:var(--amber);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
  font-size:14px;
  color:#4A4D56;
}
.faq-item.open .faq-a{max-height:600px;}
.faq-a-inner{padding-bottom:24px; max-width:760px;}

/* ===================== CONTACT / FORM ===================== */
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.field{display:flex; flex-direction:column; gap:8px; margin-bottom:16px;}
.field.full{grid-column:1/-1;}
.field label{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--text-on-dark-soft);
}
.field input, .field textarea, .field select{
  background:var(--ink-soft);
  border:1px solid var(--line);
  color:var(--paper);
  padding:13px 14px;
  font-family:'Inter',sans-serif;
  font-size:14px;
  border-radius:var(--radius);
  transition:border-color .2s;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline:none;
  border-color:var(--amber);
}
.field textarea{resize:vertical; min-height:120px;}
@media (max-width:700px){
  .form-grid{grid-template-columns:1fr;}
  .field.full{grid-column:auto;}
}

/* ===================== FOOTER ===================== */
footer{
  background:var(--ink);
  color:var(--text-on-dark-soft);
  padding-top:72px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:56px;
  border-bottom:1px solid var(--line);
}
.footer-col h4{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  letter-spacing:0.08em;
  color:var(--text-on-dark);
  text-transform:uppercase;
  margin-bottom:20px;
}
.footer-col ul{display:flex; flex-direction:column; gap:12px;}
.footer-col a{font-size:14px; transition:color .2s;}
.footer-col a:hover{color:var(--amber);}
.footer-brand p{font-size:14px; max-width:300px; margin:18px 0 24px; color:var(--text-on-dark-soft);}
.social-row{display:flex; gap:14px;}
.social-row a{
  width:34px; height:34px;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  font-size:13px;
  transition:border-color .2s, color .2s;
}
.social-row a:hover{border-color:var(--amber); color:var(--amber);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:24px 0;
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  flex-wrap:wrap;
  gap:12px;
}
.lang-switch{display:flex; gap:14px;}
.lang-switch a{color:var(--text-on-dark-soft);}
.lang-switch a:hover{color:var(--amber);}

@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .footer-top{grid-template-columns:1fr;}
}

/* ===================== STICKY CONTACT RAIL ===================== */
.sticky-rail{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:200;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.sticky-rail a{
  width:48px; height:48px;
  background:var(--ink);
  border:1px solid var(--line);
  color:var(--paper);
  display:flex; align-items:center; justify-content:center;
  font-size:18px;
  border-radius:50%;
  transition:background .2s, border-color .2s;
}
.sticky-rail a:hover{background:var(--amber); color:var(--ink); border-color:var(--amber);}

/* ===================== PAGE HERO (sub-pages) ===================== */
.page-hero{
  background:var(--ink);
  color:var(--text-on-dark);
  padding:64px 0 56px;
  position:relative;
  overflow:hidden;
}
.breadcrumb{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--text-on-dark-soft);
  margin-bottom:18px;
  letter-spacing:0.04em;
}
.breadcrumb a:hover{color:var(--amber);}
.breadcrumb .sep{margin:0 8px; color:var(--line);}
.page-hero h1{
  font-size:clamp(30px,4vw,48px);
  color:var(--paper);
}
.page-hero p{
  color:var(--text-on-dark-soft);
  max-width:560px;
  margin-top:16px;
  font-size:15px;
}

/* ===================== PRODUCT LISTING CARD ===================== */
.product-card{
  background:var(--paper);
  border:1px solid var(--line-lt);
  transition:border-color .25s, transform .25s;
  display:flex;
  flex-direction:column;
}
.product-card:hover{border-color:var(--amber); transform:translateY(-3px);}
.product-card .pc-image{
  aspect-ratio:1/1;
  background:var(--paper-dim);
  position:relative;
  overflow:hidden;
}
.product-card .pc-image img{width:100%; height:100%; object-fit:cover;}
.product-card .pc-tag{
  position:absolute;
  top:12px; left:12px;
  background:var(--ink);
  color:var(--amber);
  font-family:'IBM Plex Mono',monospace;
  font-size:10px;
  letter-spacing:0.06em;
  padding:5px 10px;
  text-transform:uppercase;
}
.pc-body{padding:20px; flex:1; display:flex; flex-direction:column;}
.pc-body h3{font-size:15px; margin-bottom:10px; line-height:1.3;}
.pc-specs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}
.pc-specs span{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  color:#6B6E76;
  background:var(--paper-dim);
  padding:4px 8px;
  border:1px solid var(--line-lt);
}
.pc-body .pc-link{
  margin-top:auto;
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--ink);
  border-top:1px solid var(--line-lt);
  padding-top:14px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

/* ===================== FILTER BAR ===================== */
.filter-bar{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:40px;
  padding-bottom:24px;
  border-bottom:1px solid var(--line-lt);
}
.filter-chip{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  letter-spacing:0.04em;
  text-transform:uppercase;
  padding:9px 16px;
  border:1px solid var(--line-lt);
  color:#54575F;
  background:transparent;
  transition:all .2s;
}
.filter-chip.active{
  background:var(--ink);
  color:var(--amber);
  border-color:var(--ink);
}
.filter-chip:hover{border-color:var(--ink);}

/* ===================== MISC UTILS ===================== */
.divider-amber{
  height:2px;
  width:60px;
  background:var(--amber);
  margin:0 0 24px;
}
.text-center{text-align:center;}
.mt-0{margin-top:0;}

.cta-banner{
  background:var(--amber);
  color:var(--ink);
  padding:64px 0;
  text-align:center;
}
.cta-banner h2{font-size:clamp(26px,3vw,38px); margin-bottom:18px;}
.cta-banner p{max-width:520px; margin:0 auto 32px; font-size:15px; color:#3A2A0F;}
.cta-banner .btn-outline-dark{border-color:var(--ink);}