/* ===========================================================
   IoTrix — Design tokens (matched to brand logo)
   Ink (text) / Paper (bg) / Surface (cards) / Fog (muted)
   Signal (brand orange) — used sparingly
=========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --ink: #2a2a38;
  --surface: #f6f6f8;
  --surface-2: #eeeef2;
  --line: #e2e2e8;
  --paper: #ffffff;
  --fog: #63636f;
  --signal: #f26a1b;
  --signal-light: #fa8c46;
  --signal-dim: #f9c79b;
  --signal-tint: #fef1e7;

  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;

  --max: 1120px;
  --pad: clamp(20px, 5vw, 64px);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3{
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  color: var(--ink);
}

p{ margin: 0 0 1em; color: var(--fog); }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--signal);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before{
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal-dim);
}

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

/* ---------- Trace signature (left rail on desktop) ---------- */
.trace{
  position: fixed;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 1px;
  z-index: 5;
  display: none;
}
.trace::before{
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: var(--line);
}
.trace-fill{
  position: absolute;
  left: 0; top: 0;
  width: 1px;
  height: 0%;
  background: linear-gradient(var(--signal), transparent);
  transition: height 0.15s linear;
}
.trace-node{
  position: absolute;
  left: -3px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: all 0.25s ease;
}
.trace-node.active{
  background: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 0 10px var(--signal-dim);
}
@media (min-width: 980px){
  .trace{ display: block; }
}

/* ---------- Nav ---------- */
header.site{
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav{
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo{
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo img{ height: 30px; width: auto; }

.nav-links{
  display: none;
  gap: 32px;
  font-size: 14.5px;
  color: var(--fog);
}
.nav-links a{ transition: color 0.2s; position: relative; }
.nav-links a:hover, .nav-links a.current{ color: var(--ink); }
.nav-links a.current::after{
  content:"";
  position: absolute;
  left: 0; bottom: -6px;
  width: 100%; height: 1px;
  background: var(--signal);
}
@media (min-width: 780px){
  .nav-links{ display: flex; }
}

.btn{
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  padding: 10px 18px;
  border-radius: 4px;
  border: 1px solid var(--line);
  transition: all 0.2s ease;
  display: inline-block;
  white-space: nowrap;
}
.btn-primary{
  background: var(--signal);
  color: #ffffff;
  border-color: var(--signal);
  font-weight: 500;
}
.btn-primary:hover{ background: var(--signal-light); border-color: var(--signal-light); }
.btn-ghost{ color: var(--ink); }
.btn-ghost:hover{ border-color: var(--signal); color: var(--signal); }

/* ---------- Hero ---------- */
.hero{
  padding: clamp(64px, 12vw, 140px) var(--pad) clamp(48px, 8vw, 90px);
  max-width: var(--max);
  margin: 0 auto;
}
.hero h1{
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  max-width: 16ch;
}
.hero .lede{
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  max-width: 56ch;
  color: var(--fog);
  margin-bottom: 2em;
}
.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
section{ padding: clamp(48px, 8vw, 96px) 0; }
section + section{ border-top: 1px solid var(--line); }

.section-head{
  max-width: 60ch;
  margin-bottom: 48px;
}
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.3rem); }

/* ---------- Grid / cards ---------- */
.grid{
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}
@media (min-width: 700px){
  .grid.cols-2{ grid-template-columns: 1fr 1fr; }
  .grid.cols-3{ grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 980px){
  .grid.cols-4{ grid-template-columns: repeat(4, 1fr); }
}

.card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover{ border-color: var(--signal-dim); transform: translateY(-2px); box-shadow: 0 12px 24px -16px rgba(242,106,27,0.35); }
.card .tag{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--signal);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  display: block;
}
.card h3{ font-size: 1.15rem; margin-bottom: 8px; }
.card p{ font-size: 14.5px; margin-bottom: 0; }
.card .industry{
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--signal);
  background: var(--signal-tint);
  border-radius: 20px;
  padding: 4px 10px;
  letter-spacing: 0.02em;
}
.card ul.services{
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.card ul.services li{
  font-size: 12px;
  color: var(--fog);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 4px 10px;
}

/* ---------- Stats row ---------- */
.stat-row{
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 8px 0 0;
}
.stat b{
  display: block;
  font-family: var(--display);
  font-size: 1.8rem;
  color: var(--ink);
}
.stat span{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fog);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Forms ---------- */
.field{ margin-bottom: 18px; }
.field label{
  display: block;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--fog);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.field input, .field textarea, .field select{
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 4px;
  padding: 12px 14px;
  font-family: var(--body);
  font-size: 14.5px;
  transition: border-color 0.2s;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline: none;
  border-color: var(--signal);
}
.field textarea{ resize: vertical; min-height: 130px; }

/* ---------- Contact info list ---------- */
.info-list{ list-style: none; padding: 0; margin: 0; }
.info-list li{
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14.5px;
}
.info-list li span:first-child{
  font-family: var(--mono);
  color: var(--fog);
  font-size: 12.5px;
  text-transform: uppercase;
}

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 10px;
  padding: clamp(32px, 6vw, 56px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cta-band h2{ font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin-bottom: 6px; color: var(--paper); }
.cta-band p{ margin-bottom: 0; color: #b9b9c4; }
.cta-band .btn-primary:hover{ background: var(--signal-light); }

/* ---------- Industry strip ---------- */
.industry-strip{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fog);
}
.industry-strip span{ color: var(--line); }

/* ---------- Footer ---------- */
footer.site{
  border-top: 1px solid var(--line);
  padding: 40px var(--pad) 32px;
  background: var(--surface);
}
.footer-inner{
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}
.footer-inner .fine{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fog);
}
.footer-links{ display: flex; gap: 24px; font-size: 13.5px; color: var(--fog); }
.footer-links a:hover{ color: var(--signal); }

/* ---------- reveal-on-scroll ---------- */
.reveal{ opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in{ opacity: 1; transform: translateY(0); }

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

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}