/* =========================================================
   ELECTRO TECH LTD — design tokens
   Concept: the studio's visual language borrows from PCB
   silkscreen + component datasheets. Circular team photos
   read as component nodes; specs read as datasheet fields.
   ========================================================= */

:root{
  --bg:        #0c1726;
  --bg-alt:    #0f1e32;
  --panel:     #12233b;
  --panel-2:   #162944;
  --line:      #223652;
  --line-soft: #1a2c46;
  --text:      #eef1f6;
  --muted:     #8d9bb5;
  --muted-2:   #5f6f8c;
  --amber:     #e8a33d;
  --amber-dim: #a97a35;
  --teal:      #49d3c7;

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body:    "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --container: 1180px;
  --radius: 4px;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; }

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:64px 64px;
  background-position:center top;
}

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

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ list-style:none; }

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; letter-spacing:-0.01em; }

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--amber);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--amber);
  display:inline-block;
}

.section{ padding:96px 0; position:relative; }
.section-tight{ padding:64px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,3.4vw,40px); margin-bottom:16px; }
.section-head p{ color:var(--muted); font-size:16px; }

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  text-transform:uppercase;
  padding:14px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  transition:border-color .2s ease, background .2s ease, transform .2s ease;
  cursor:pointer;
  background:transparent;
  color:var(--text);
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{
  background:var(--amber);
  border-color:var(--amber);
  color:#14202f;
  font-weight:700;
}
.btn-primary:hover{ background:#f2ad46; }
.btn-ghost:hover{ border-color:var(--amber); color:var(--amber); }
.btn-arrow{ transition:transform .2s ease; }
.btn:hover .btn-arrow{ transform:translateX(3px); }

/* ---------- nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(12,23,38,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{ width:30px; height:30px; flex:none; }
.brand-text{ font-family:var(--font-display); font-size:17px; font-weight:700; letter-spacing:.01em; line-height:1.1; }
.brand-text small{
  display:block; font-family:var(--font-mono); font-size:10px; letter-spacing:.18em;
  color:var(--amber); font-weight:500; margin-top:2px;
}

.nav-links{ display:flex; align-items:center; gap:36px; }
.nav-links a{
  font-family:var(--font-mono); font-size:13px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--muted); position:relative; padding:6px 0;
  transition:color .2s ease;
}
.nav-links a:hover, .nav-links a.active{ color:var(--text); }
.nav-links a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-3px; height:2px; background:var(--amber);
}
.nav-cta{ display:flex; align-items:center; gap:22px; }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:6px;
}
.nav-toggle span{ width:22px; height:2px; background:var(--text); display:block; }

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:88px 0 100px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero .wrap{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
  position:relative;
  z-index:2;
}
.hero-trace{
  position:absolute; inset:0; z-index:1; opacity:.55; pointer-events:none;
}
.hero-trace .pulse{
  stroke-dasharray:6 10;
  animation:dash 5s linear infinite;
}
@keyframes dash{ to{ stroke-dashoffset:-160; } }

.hero h1{
  font-size:clamp(38px,5.6vw,64px);
  line-height:1.05;
  margin-bottom:22px;
}
.hero h1 .hl{ color:var(--amber); }
.hero p.lead{ font-size:18px; color:var(--muted); max-width:52ch; margin-bottom:34px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* datasheet card */
.datasheet{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}
.datasheet-head{
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 18px;
  border-bottom:1px solid var(--line);
  background:var(--panel-2);
  font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted-2);
}
.datasheet-head .dot{ width:7px; height:7px; border-radius:50%; background:var(--teal); box-shadow:0 0 0 3px rgba(73,211,199,.15); }
.datasheet-body{ padding:22px; }
.spec-row{
  display:flex; justify-content:space-between; gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.spec-row:last-child{ border-bottom:0; }
.spec-row .k{ font-family:var(--font-mono); color:var(--muted-2); font-size:12px; letter-spacing:.05em; text-transform:uppercase; }
.spec-row .v{ color:var(--text); text-align:right; font-weight:500; }

/* ---------- service module cards ---------- */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:28px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }

.module{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
  position:relative;
  transition:border-color .25s ease, transform .25s ease;
}
.module::before{
  content:attr(data-pin);
  position:absolute; top:16px; right:18px;
  font-family:var(--font-mono); font-size:11px; letter-spacing:.08em;
  color:var(--muted-2);
}
.module:hover{ border-color:var(--amber-dim); transform:translateY(-3px); }
.module .icon{ width:40px; height:40px; margin-bottom:22px; color:var(--amber); }
.module h3{ font-size:22px; margin-bottom:12px; }
.module p{ color:var(--muted); font-size:15px; margin-bottom:20px; }
.module ul{ display:flex; flex-direction:column; gap:10px; }
.module ul li{
  font-size:14px; color:var(--text); display:flex; align-items:flex-start; gap:10px;
}
.module ul li::before{
  content:""; width:6px; height:6px; margin-top:7px; flex:none;
  background:var(--teal); border-radius:1px; transform:rotate(45deg);
}
.module-link{
  display:inline-flex; align-items:center; gap:8px; margin-top:22px;
  font-family:var(--font-mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--amber);
}

/* ---------- signal path / process ---------- */
.signal-path{
  display:flex; align-items:flex-start; gap:0; overflow-x:auto; padding-bottom:8px;
}
.signal-node{
  flex:1; min-width:150px; position:relative; padding:0 18px; text-align:left;
}
.signal-node .num{
  font-family:var(--font-mono); font-size:12px; color:var(--amber); letter-spacing:.06em; margin-bottom:14px; display:block;
}
.signal-node .node-dot{
  width:14px; height:14px; border-radius:50%; background:var(--bg);
  border:2px solid var(--amber); margin-bottom:16px;
  position:relative; z-index:2;
}
.signal-node h4{ font-size:16px; margin-bottom:8px; }
.signal-node p{ font-size:13.5px; color:var(--muted); }
.signal-node::before{
  content:""; position:absolute; top:6px; left:0; right:0; height:2px;
  background:var(--line);
}
.signal-node:first-child::before{ left:50%; }
.signal-node:last-child::before{ right:50%; }

/* ---------- team: component-node cards ---------- */
.team-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:44px 32px;
}
.team-node{ text-align:center; position:relative; }
.team-photo-wrap{
  position:relative; width:150px; height:150px; margin:0 auto 20px;
}
.team-photo-wrap::before{
  content:""; position:absolute; left:50%; top:-22px; width:1px; height:22px;
  background:var(--line); transform:translateX(-50%);
}
.team-photo{
  width:150px; height:150px; border-radius:50%;
  object-fit:cover;
  border:2px solid var(--line);
  padding:5px;
  transition:border-color .25s ease;
}
.team-node:hover .team-photo{ border-color:var(--amber); }
.team-tag{
  position:absolute; top:6px; right:2px;
  background:var(--bg); border:1px solid var(--line);
  color:var(--teal); font-family:var(--font-mono); font-size:10px; letter-spacing:.05em;
  padding:2px 6px; border-radius:3px;
}
.team-node h3{ font-size:18px; margin-bottom:4px; }
.team-node .role{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.05em; text-transform:uppercase; color:var(--amber);
  margin-bottom:10px;
}
.team-node .bio{ font-size:13.5px; color:var(--muted); max-width:26ch; margin:0 auto; }

/* ---------- stats strip ---------- */
.strip{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:var(--bg-alt);
}
.strip .wrap{
  display:grid; grid-template-columns:repeat(4,1fr);
  padding:40px 28px;
}
.strip-item{ text-align:left; padding:0 20px; border-left:1px solid var(--line); }
.strip-item:first-child{ border-left:0; padding-left:0; }
.strip-item .n{ font-family:var(--font-display); font-size:32px; color:var(--amber); }
.strip-item .l{ font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--muted-2); margin-top:6px; }

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:56px;
  display:flex; align-items:center; justify-content:space-between; gap:32px;
  flex-wrap:wrap;
}
.cta-band h3{ font-size:28px; max-width:26ch; }
.cta-band p{ color:var(--muted); margin-top:10px; }

/* ---------- footer ---------- */
.site-footer{ border-top:1px solid var(--line); padding:56px 0 32px; }
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; margin-bottom:48px;
}
.footer-grid h4{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--muted-2);
  margin-bottom:18px;
}
.footer-grid p{ color:var(--muted); font-size:14px; max-width:36ch; }
.footer-grid ul li{ margin-bottom:10px; }
.footer-grid ul li a{ color:var(--muted); font-size:14px; transition:color .2s ease; }
.footer-grid ul li a:hover{ color:var(--amber); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  border-top:1px solid var(--line); padding-top:24px;
  font-family:var(--font-mono); font-size:12px; color:var(--muted-2); flex-wrap:wrap; gap:12px;
}

/* ---------- page hero (inner pages) ---------- */
.page-hero{ padding:64px 0 56px; border-bottom:1px solid var(--line); }
.page-hero h1{ font-size:clamp(32px,4.6vw,50px); margin-bottom:16px; }
.page-hero p{ color:var(--muted); max-width:60ch; font-size:17px; }
.crumb{
  font-family:var(--font-mono); font-size:12px; color:var(--muted-2); letter-spacing:.06em; text-transform:uppercase;
  margin-bottom:18px;
}
.crumb .cur{ color:var(--amber); }

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero .wrap{ grid-template-columns:1fr; }
  .grid-2, .grid-3{ grid-template-columns:1fr; }
  .team-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .strip .wrap{ grid-template-columns:repeat(2,1fr); row-gap:28px; }
}

@media (max-width:720px){
  .nav-links{
    position:fixed; inset:76px 0 auto 0; background:var(--bg);
    flex-direction:column; align-items:flex-start; gap:0;
    border-bottom:1px solid var(--line);
    transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
  }
  .nav-links.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .nav-links a{ padding:16px 28px; width:100%; border-bottom:1px solid var(--line-soft); }
  .nav-cta .btn-ghost{ display:none; }
  .nav-toggle{ display:flex; }
  .team-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-band{ flex-direction:column; align-items:flex-start; }
}