/* MicroScan Pro Ai Assist — field instrument aesthetic
   Palette: steel charcoal ground, safety-vest amber, alert red, warm paper white
*/

:root{
  --ground:#14171a;
  --panel:#1b1f22;
  --panel-raised:#20252a;
  --line:#33393e;
  --line-strong:#4a5157;
  --paper:#ece7dc;
  --paper-dim:#a9a49a;
  --steel:#7d8489;
  --amber:#e0ad2e;
  --amber-dim:#8a6c22;
  --red:#c73a2f;
  --green:#4f8f5b;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ground);
  color:var(--paper);
  font-family:'IBM Plex Sans', -apple-system, sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3{
  font-family:'Big Shoulders Display', 'Arial Narrow', sans-serif;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.02em;
  margin:0;
  color:var(--paper);
}

.mono{
  font-family:'IBM Plex Mono', monospace;
}

a{color:var(--amber);}
img{max-width:100%;display:block;}

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- corner-bracket HUD frame, the site's signature element ---------- */
.hud-frame{
  position:relative;
  border:1px solid var(--line);
}
.hud-frame::before,
.hud-frame::after,
.hud-frame .b2,
.hud-frame .b3{
  content:"";
  position:absolute;
  width:18px;
  height:18px;
  border:2px solid var(--amber);
  z-index:2;
}
.hud-frame::before{ top:-2px; left:-2px; border-right:none; border-bottom:none; }
.hud-frame::after{ bottom:-2px; right:-2px; border-left:none; border-top:none; }
.hud-frame .b2{ top:-2px; right:-2px; border-left:none; border-bottom:none; }
.hud-frame .b3{ bottom:-2px; left:-2px; border-right:none; border-top:none; }

.hud-tag{
  position:absolute;
  top:10px;
  left:10px;
  z-index:3;
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  background:rgba(20,23,26,0.82);
  border:1px solid var(--line-strong);
  color:var(--amber);
  padding:4px 8px;
}
.hud-tag.critical{ color:var(--red); border-color:var(--red); }
.hud-tag .dot{
  display:inline-block;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--green);
  margin-right:6px;
}
.hud-tag.critical .dot{ background:var(--red); }

/* ---------- header ---------- */
header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(20,23,26,0.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 32px;
  max-width:1180px;
  margin:0 auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand img{ height:30px; width:auto; }
.brand-text{
  font-family:'Big Shoulders Display',sans-serif;
  font-weight:700;
  font-size:20px;
  letter-spacing:0.03em;
  text-transform:uppercase;
}
.brand-text span{ color:var(--amber); }
.navlinks{
  display:flex;
  gap:28px;
  list-style:none;
  margin:0;
  padding:0;
}
.navlinks a{
  color:var(--paper-dim);
  text-decoration:none;
  font-size:13px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  font-family:'IBM Plex Mono',monospace;
}
.navlinks a:hover{ color:var(--amber); }
.navmenu-toggle{ display:none; }

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:60% 30%;
  filter:saturate(0.85) contrast(1.05);
}
.hero-scrim{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(20,23,26,0.35) 0%, rgba(20,23,26,0.55) 45%, rgba(20,23,26,0.96) 92%);
}
.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding:0 32px 72px;
  max-width:1180px;
  margin:0 auto;
}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:18px;
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(79,143,91,0.2);
}
.hero h1{
  font-size:clamp(48px,7.5vw,104px);
  line-height:0.94;
  max-width:900px;
}
.hero h1 em{
  font-style:normal;
  color:var(--amber);
}
.hero-sub{
  margin-top:24px;
  max-width:640px;
  font-size:19px;
  color:var(--paper-dim);
  font-weight:400;
}
.hero-cta{
  display:flex;
  gap:16px;
  margin-top:36px;
  flex-wrap:wrap;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 26px;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  text-decoration:none;
  border:1px solid var(--line-strong);
  color:var(--paper);
  transition:all 0.15s ease;
}
.btn-primary{
  background:var(--amber);
  border-color:var(--amber);
  color:#1a1500;
  font-weight:600;
}
.btn-primary:hover{ background:#f0bd3d; }
.btn-ghost:hover{ border-color:var(--amber); color:var(--amber); }

/* ---------- sections ---------- */
section{
  padding:110px 0;
  border-bottom:1px solid var(--line);
}
section:last-of-type{ border-bottom:none; }
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:40px;
  margin-bottom:56px;
  flex-wrap:wrap;
}
.section-num{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  color:var(--steel);
  letter-spacing:0.1em;
}
.section-head h2{
  font-size:clamp(30px,4vw,46px);
  margin-top:8px;
  max-width:640px;
}
.section-head p{
  max-width:380px;
  color:var(--paper-dim);
  font-size:15px;
  margin:8px 0 0;
}

/* ---------- problem section ---------- */
.products-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.product-card{
  background:var(--panel);
  border:1px solid var(--line);
  padding:20px;
  transition:border-color 0.2s ease, transform 0.2s ease;
}
.product-card:hover{ border-color:var(--amber); transform:translateY(-4px); }
.product-img{
  aspect-ratio:1/1;
  overflow:hidden;
  margin-bottom:18px;
  background:var(--ground);
}
.product-img img{ width:100%; height:100%; object-fit:cover; }
.product-card h3{
  font-size:22px;
  margin-bottom:10px;
}
.product-card h3 .mono{
  color:var(--amber);
  font-family:'IBM Plex Mono',monospace;
  text-transform:none;
  font-weight:500;
  font-size:16px;
}
.product-card p{
  color:var(--paper-dim);
  font-size:14px;
  margin:0;
  line-height:1.55;
}

.problem-grid{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:64px;
  align-items:center;
}
.problem-copy p{ color:var(--paper-dim); font-size:16px; margin:0 0 18px; }
.problem-copy p strong{ color:var(--paper); font-weight:600; }
.sketch-frame{ position:relative; background:#dcd6c8; padding:14px; }
.sketch-frame img{ filter:sepia(0.15) contrast(1.05); }
.sketch-caption{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--steel);
  margin-top:14px;
  letter-spacing:0.03em;
}

/* ---------- how it works ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
}
.step{
  background:var(--ground);
  padding:40px 32px;
}
.step-mark{
  font-family:'IBM Plex Mono',monospace;
  color:var(--amber);
  font-size:13px;
  letter-spacing:0.08em;
  margin-bottom:22px;
  display:block;
}
.step h3{
  font-size:24px;
  margin-bottom:14px;
}
.step p{
  color:var(--paper-dim);
  font-size:15px;
  margin:0;
}

/* ---------- gallery ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:220px;
  gap:14px;
}
.gallery figure{
  margin:0;
  position:relative;
  overflow:hidden;
  background:var(--panel);
}
.gallery figure img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 0.4s ease, filter 0.4s ease;
  filter:saturate(0.9);
}
.gallery figure:hover img{ transform:scale(1.06); filter:saturate(1.05); }
.gallery figure.tall{ grid-row:span 2; }
.gallery figure.wide{ grid-column:span 2; }
figcaption{
  position:absolute;
  left:0; right:0; bottom:0;
  padding:14px 16px 12px;
  background:linear-gradient(0deg, rgba(20,23,26,0.92), rgba(20,23,26,0));
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--paper);
  letter-spacing:0.02em;
}
figcaption span{ display:block; color:var(--steel); font-size:11px; margin-top:3px; }

/* ---------- metrics ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  margin-top:56px;
}
.metric{
  background:var(--panel);
  padding:30px 24px;
}
.metric .val{
  font-family:'IBM Plex Mono',monospace;
  font-size:38px;
  color:var(--amber);
  font-weight:600;
  line-height:1;
}
.metric .lbl{
  margin-top:10px;
  font-size:13px;
  color:var(--paper-dim);
  text-transform:uppercase;
  letter-spacing:0.05em;
}
.metrics-note{
  margin-top:20px;
  font-size:13px;
  color:var(--steel);
  font-family:'IBM Plex Mono',monospace;
}

/* ---------- readout callout ---------- */
.readout{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:64px;
  align-items:center;
}
.readout-copy p{ color:var(--paper-dim); font-size:16px; margin:0 0 18px;}
.readout-list{
  list-style:none;
  margin:28px 0 0;
  padding:0;
}
.readout-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--paper-dim);
}
.readout-list li strong{ color:var(--paper); min-width:120px; font-weight:600; }

/* ---------- origin ---------- */
.origin{
  display:grid;
  grid-template-columns:0.85fr 1.15fr;
  gap:64px;
  align-items:center;
}
.origin-copy p{ color:var(--paper-dim); font-size:16px; margin:0 0 18px; }
.origin-copy .signoff{
  margin-top:32px;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  color:var(--steel);
  border-top:1px solid var(--line);
  padding-top:20px;
}

/* ---------- interest strip ---------- */
.interest{
  background:var(--panel);
  padding:90px 0;
}
.interest-inner{
  text-align:center;
  max-width:640px;
  margin:0 auto;
}
.interest h2{ font-size:clamp(28px,4vw,42px); }
.interest p{
  color:var(--paper-dim);
  font-size:16px;
  margin:18px 0 34px;
}

/* ---------- footer ---------- */
footer{
  padding:48px 0;
  background:var(--ground);
}
.footer-inner{
  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{ height:22px; }
.footer-brand span{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--steel);
}
.footer-meta{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--steel);
  text-align:right;
  line-height:1.8;
}
.footer-meta a{ color:var(--steel); }
.footer-meta a:hover{ color:var(--amber); }

/* ---------- reveal on scroll ---------- */
/* ---------- reveal on scroll (progressive enhancement) ---------- */
/* Visible by default so the page works with no JS. If script.js loads,
   it adds the "js-ready" class to <body> and the fade-in takes over. */
.reveal{
  opacity:1;
  transform:none;
}
body.js-ready .reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity 0.6s ease, transform 0.6s ease;
}
body.js-ready .reveal.in{ opacity:1; transform:translateY(0); }

/* ---------- responsive ---------- */
@media (max-width:900px){
  .problem-grid,.readout,.origin{ grid-template-columns:1fr; gap:36px; }
  .steps{ grid-template-columns:1fr; }
  .products-grid{ grid-template-columns:repeat(2,1fr); }
  .gallery{ grid-template-columns:repeat(2,1fr); grid-auto-rows:180px; }
  .gallery figure.wide{ grid-column:span 2; }
  .metrics{ grid-template-columns:repeat(2,1fr); }
  .navlinks{ display:none; }
  section{ padding:72px 0; }
}
@media (max-width:560px){
  .wrap,.nav,.hero-inner{ padding-left:20px; padding-right:20px; }
  .products-grid{ grid-template-columns:1fr; }
  .gallery{ grid-template-columns:1fr; }
  .gallery figure.tall{ grid-row:span 1; }
  .metrics{ grid-template-columns:1fr; }
  .footer-inner{ flex-direction:column; align-items:flex-start; }
  .footer-meta{ text-align:left; }
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  .reveal{ transition:none; opacity:1; transform:none; }
  .gallery figure img{ transition:none; }
}