:root {
  --graphite: #1B1D21;
  --graphite-soft: #26292E;
  --paper: #F5F4F1;
  --paper-dim: #EAE8E3;
  --copper: #C4703B;
  --copper-deep: #9C5527;
  --steel: #3E5266;
  --ink: #1B1D21;
  --ink-soft: #55585E;
  --line: rgba(27, 29, 33, 0.12);
  --line-on-dark: rgba(245, 244, 241, 0.16);

  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

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

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

img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

/* ---------- Header ---------- */
header.site {
  background: var(--graphite);
  color: var(--paper);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 28px;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--paper);
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand .brand-tag {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--copper);
  letter-spacing: 0.04em;
}

.site-nav nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  margin: 0;
  padding: 0;
}

.site-nav nav a {
  text-decoration: none;
  color: var(--paper);
  font-size: 0.95rem;
  opacity: 0.82;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: opacity 0.15s ease, border-color 0.15s ease;
}

.site-nav nav a:hover,
.site-nav nav a.active { opacity: 1; border-color: var(--copper); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-phone {
  font-size: 0.92rem;
  color: var(--paper);
  text-decoration: none;
  opacity: 0.9;
  white-space: nowrap;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-on-dark);
  color: var(--paper);
  padding: 8px 12px;
  border-radius: 3px;
  font-size: 0.9rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--copper);
  color: var(--graphite);
  text-decoration: none;
  padding: 13px 26px;
  border-radius: 2px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--copper);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.btn:hover { background: var(--copper-deep); border-color: var(--copper-deep); }

.btn.ghost {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line-on-dark);
}

.btn.ghost:hover { border-color: var(--paper); }

.btn.on-light {
  color: var(--paper);
  background: var(--graphite);
  border-color: var(--graphite);
}

.btn.on-light:hover { background: var(--graphite-soft); border-color: var(--graphite-soft); }

/* ---------- Hero (with circuit trace) ---------- */
.hero {
  position: relative;
  background: var(--graphite);
  color: var(--paper);
  overflow: hidden;
  padding: 88px 0 96px;
}

.hero .wrap { position: relative; z-index: 2; }

.hero-trace {
  position: absolute;
  top: 0;
  right: -6%;
  height: 100%;
  width: 62%;
  z-index: 1;
  opacity: 0.9;
}

.trace-path {
  fill: none;
  stroke: var(--copper);
  stroke-width: 2;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 2.6s ease-out forwards;
  animation-delay: 0.3s;
}

.trace-node {
  fill: var(--copper);
  opacity: 0;
  animation: nodeIn 0.4s ease-out forwards;
}

@keyframes draw {
  to { stroke-dashoffset: 0; }
}

@keyframes nodeIn {
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .trace-path { stroke-dashoffset: 0; animation: none; }
  .trace-node { opacity: 1; animation: none; }
}

.eyebrow-line {
  color: var(--copper);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.4rem);
  line-height: 1.1;
  max-width: 15ch;
  margin-bottom: 22px;
}

.hero p.lede {
  max-width: 52ch;
  font-size: 1.12rem;
  color: rgba(245, 244, 241, 0.82);
  margin: 0 0 34px;
}

.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

.trust-strip {
  border-top: 1px solid var(--line-on-dark);
  margin-top: 56px;
  padding-top: 28px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-item {
  font-size: 0.92rem;
  color: rgba(245, 244, 241, 0.75);
  display: flex;
  align-items: center;
  gap: 9px;
}

.trust-item .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper);
  flex-shrink: 0;
}

/* ---------- Sections ---------- */
section.block {
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

.block-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.block-head h2 { font-size: 1.9rem; max-width: 20ch; }
.block-head p { max-width: 46ch; color: var(--ink-soft); margin: 12px 0 0; }

/* Sector grid */
.sector-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.sector-card {
  background: var(--paper);
  padding: 30px 26px;
}

.sector-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--copper);
}

.sector-card p {
  color: var(--ink-soft);
  font-size: 0.94rem;
  margin: 0;
}

/* Project-type row */
.type-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.type-item {
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
}

.type-item h3 { font-size: 1.1rem; margin-bottom: 8px; }
.type-item p { color: var(--ink-soft); font-size: 0.94rem; margin: 0; }

/* Dark band */
.band-dark {
  background: var(--graphite);
  color: var(--paper);
}

.band-dark .block-head p { color: rgba(245, 244, 241, 0.7); }

.band-dark .sector-grid,
.band-dark .sector-card { background: var(--graphite); }
.band-dark .sector-grid { background: var(--line-on-dark); border-color: var(--line-on-dark); }
.band-dark .sector-card { border-color: var(--line-on-dark); }
.band-dark .sector-card p { color: rgba(245, 244, 241, 0.72); }

/* CTA band */
.cta-band {
  background: var(--copper);
  color: var(--graphite);
  padding: 56px 0;
  text-align: left;
}

.cta-band .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-band h2 { font-size: 1.6rem; max-width: 24ch; }

/* Cards (services/projects) */
.card-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 48px;
}

.svc-card h3 {
  font-size: 1.2rem;
  padding-bottom: 16px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.svc-card p { color: var(--ink-soft); margin: 0 0 14px; }

.svc-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.svc-card li { margin-bottom: 6px; }

/* Project entries (no photos yet) */
.project-list { display: flex; flex-direction: column; }

.project-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.project-row:last-child { border-bottom: 1px solid var(--line); }

.project-tag {
  color: var(--copper);
  font-size: 0.88rem;
}

.project-row h3 { font-size: 1.25rem; margin: 6px 0 10px; }
.project-row p { color: var(--ink-soft); margin: 0; max-width: 60ch; }

/* About page specifics */
.creds-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 40px;
  margin-top: 36px;
}

.cred-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.cred-item .mark {
  color: var(--copper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.cred-item p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
.cred-item strong { display: block; color: var(--ink); margin-bottom: 2px; }

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 56px;
}

.contact-info h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.contact-info .info-block { margin-bottom: 30px; }
.contact-info a.info-link {
  color: var(--copper-deep);
  text-decoration: none;
  font-size: 1.05rem;
}
.contact-info a.info-link:hover { text-decoration: underline; }
.contact-info p.small { color: var(--ink-soft); font-size: 0.92rem; margin: 4px 0 0; }

form.contact-form {
  display: grid;
  gap: 18px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

form.contact-form label {
  display: block;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: 2px;
  color: var(--ink);
}

form.contact-form input:focus,
form.contact-form select:focus,
form.contact-form textarea:focus {
  outline: 2px solid var(--copper);
  outline-offset: 1px;
  border-color: var(--copper);
}

form.contact-form textarea { resize: vertical; min-height: 120px; }

.form-note {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: -6px;
}

/* ---------- Footer ---------- */
footer.site {
  background: var(--graphite);
  color: rgba(245, 244, 241, 0.7);
  padding: 52px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line-on-dark);
}

.footer-grid h4 {
  color: var(--paper);
  font-size: 0.92rem;
  margin-bottom: 14px;
}

.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 9px; font-size: 0.92rem; }
.footer-grid a { text-decoration: none; color: rgba(245, 244, 241, 0.7); }
.footer-grid a:hover { color: var(--paper); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .sector-grid { grid-template-columns: 1fr; }
  .type-row { grid-template-columns: 1fr; gap: 20px; }
  .card-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .project-row { grid-template-columns: 1fr; gap: 10px; }
  .creds-list { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .site-nav nav, .nav-cta .btn { display: none; }
  .menu-toggle { display: inline-block; }
  .site-nav.open nav { display: block; }
  .site-nav.open nav ul {
    flex-direction: column;
    gap: 16px;
    padding: 20px 0 4px;
  }
  .form-row { grid-template-columns: 1fr; }
  .hero-trace { width: 90%; opacity: 0.5; }
  .cta-band .wrap { flex-direction: column; align-items: flex-start; }
}

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