/* ════════════════════════════════════════════════════════════════
   INVATECHS HOMEPAGE — section styles (uses brand.css tokens)
   ════════════════════════════════════════════════════════════════ */

/* ── Logo ── */
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand img { height: 30px; width: auto; }
.brand .logo-on-dark { display: none; }
[data-hero="dark"] .site-header .brand .logo-on-light { display: none; }
[data-hero="dark"] .site-header .brand .logo-on-dark { display: block; }
[data-hero="dark"] .site-header .mobile-nav .brand .logo-on-light { display: none; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,0.9);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
[data-hero="dark"] .site-header {
  background: rgba(22,21,9,0.85);
  border-bottom-color: var(--dark-line);
}

.header-inner {
  width: var(--col);
  margin-inline: auto;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand .brand-dot { color: var(--accent-text); }
.brand .brand-ai {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent-text);
  border: 1px solid currentColor;
  border-radius: var(--radius);
  padding: 0.15em 0.45em;
  transform: translateY(-1px);
}
[data-hero="dark"] .brand { color: #fff; }
[data-hero="dark"] .brand .brand-ai { color: var(--accent); }

.main-nav { display: flex; align-items: center; gap: 0.2rem; }
.main-nav a {
  white-space: nowrap;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--body);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  transition: color var(--speed), background var(--speed);
}
.main-nav a:hover { color: var(--ink); background: var(--line-light); }
[data-hero="dark"] .main-nav a { color: var(--dark-text); }
[data-hero="dark"] .main-nav a:hover { color: #fff; background: rgba(239,217,27,0.08); }

.header-cta { display: flex; align-items: center; gap: 0.75rem; }
.header-cta .btn { min-height: 42px; padding: 0.7em 1.3em; font-size: 0.86rem; }

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0 11px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  transition: transform var(--speed), opacity var(--speed);
}
[data-hero="dark"] .nav-toggle { border-color: var(--dark-line); }
[data-hero="dark"] .nav-toggle span { background: #fff; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--bg);
  padding: 0.75rem 0 1.25rem;
}
.mobile-nav.open { display: block; }
.mobile-nav .container { display: grid; gap: 0.1rem; }
.mobile-nav a {
  display: block;
  font-size: 1rem;
  font-weight: 550;
  color: var(--ink);
  padding: 0.8rem 0.5rem;
  border-bottom: 1px solid var(--line-light);
}
.mobile-nav .btn { margin-top: 1rem; justify-content: center; }
[data-hero="dark"] .mobile-nav { background: var(--dark-950); border-top-color: var(--dark-line); }
[data-hero="dark"] .mobile-nav a { color: #fff; border-bottom-color: rgba(239,217,27,0.08); }

/* ════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════ */
.hero { position: relative; overflow: clip; }
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

/* light variant overrides */
[data-hero="light"] .hero.on-dark { background: var(--bg); color: var(--ink); }
[data-hero="light"] .hero.on-dark h1 { color: var(--ink); }
[data-hero="light"] .hero.on-dark .lede { color: var(--body); }
[data-hero="light"] .hero.on-dark .kicker { color: var(--muted); }
[data-hero="light"] .hero.on-dark .kicker .idx { color: var(--ink); background: var(--accent); }
[data-hero="light"] .hero.on-dark .kicker::after { background: var(--line); }
[data-hero="light"] .hero.on-dark .btn--ghost { color: var(--ink); border-color: rgba(24,22,2,0.28); background: var(--bg); }
[data-hero="light"] .hero.on-dark .continuity-link { color: var(--ink); }
[data-hero="light"] .hero.on-dark .continuity-link:hover { color: var(--ink-2); }
[data-hero="light"][data-texture="dots"] .hero.on-dark::before {
  --dot: rgba(24,22,2,0.20);
  --fade-from: #FFFFFF;
  --fade-to: rgba(255,255,255,0);
}
[data-hero="light"][data-texture="grid"] .hero.on-dark { --grid-line: rgba(24,22,2,0.04); }

.hero-copy { display: grid; gap: 1.4rem; justify-items: start; }
.hero-copy h1 { max-width: 17ch; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 0.4rem; }
.continuity-link { font-size: 0.9rem; font-weight: 550; }

/* ── Hero pipeline diagram ── */
.pipeline {
  display: grid;
  gap: 0;
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  background: rgba(30,28,14,0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
[data-hero="light"] .pipeline {
  border-color: var(--line);
  background: var(--surface);
}

.pipeline-head {
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid var(--dark-line);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dark-muted);
}
[data-hero="light"] .pipeline-head { border-bottom-color: var(--line); color: var(--muted); }
.pipeline-head .live {
  display: inline-flex; align-items: center; gap: 0.5em;
  color: var(--accent);
}
[data-hero="light"] .pipeline-head .live { color: var(--accent-text); }
.pipeline-head .live::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
}
@media (prefers-reduced-motion: no-preference) {
  [data-motion="on"] .pipeline-head .live::before { animation: pulse 2s infinite; }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.pipeline-body { padding: 1.3rem 1.1rem 1.5rem; display: grid; gap: 0; }

.pl-node {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.pl-dot {
  flex: none;
  width: 10px; height: 10px;
  border: 2px solid var(--accent);
  background: transparent;
  border-radius: 50%;
}
.pl-node.is-core .pl-dot { background: var(--accent); }
[data-hero="light"] .pl-dot { border-color: var(--ink); }
[data-hero="light"] .pl-node.is-core .pl-dot { background: var(--accent); border-color: var(--ink); }

.pl-label { display: grid; gap: 0.05rem; padding-block: 0.15rem; }
.pl-label .pl-t { font-weight: 650; font-size: 0.95rem; color: #fff; letter-spacing: -0.01em; }
.pl-label .pl-s {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--dark-muted);
  letter-spacing: 0.02em;
}
[data-hero="light"] .pl-label .pl-t { color: var(--ink); }
[data-hero="light"] .pl-label .pl-s { color: var(--muted); }

.pl-link {
  position: relative;
  margin-left: 4px;
  width: 2px;
  height: 26px;
  background: var(--dark-line);
  overflow: hidden;
}
[data-hero="light"] .pl-link { background: var(--line); }
.pl-link::after {
  content: "";
  position: absolute;
  left: 0; top: -8px;
  width: 100%; height: 8px;
  background: var(--accent);
}
[data-hero="light"] .pl-link::after { background: var(--accent-hover); }
@media (prefers-reduced-motion: no-preference) {
  [data-motion="on"] .pl-link::after { animation: flow 2.4s linear infinite; }
  [data-motion="on"] .pl-link[data-delay="1"]::after { animation-delay: 0.8s; }
  [data-motion="on"] .pl-link[data-delay="2"]::after { animation-delay: 1.6s; }
}
@keyframes flow {
  0% { top: -8px; }
  100% { top: 26px; }
}

/* ════════════════════════════════════════════
   TRUST STRIP
   ════════════════════════════════════════════ */
.trust { border-bottom: 1px solid var(--line); background: var(--bg); }
.trust .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  padding-block: clamp(2.2rem, 4vw, 3.2rem);
}
.trust-note {
  border-bottom: 1px solid var(--line);
}
.trust-note .container {
  padding-block: 1rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.trust-note .container::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--accent);
  flex: none;
}

/* ════════════════════════════════════════════
   PILLARS (What we do now)
   ════════════════════════════════════════════ */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.pillar { display: grid; gap: 0.8rem; align-content: start; }
.pillar .pillar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.pillar p { font-size: 0.95rem; line-height: 1.6; }
.pillar .pillar-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.3rem; }

.section-cta { margin-top: clamp(2rem, 4vw, 3rem); display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* ════════════════════════════════════════════
   CONTINUITY SERVICES
   ════════════════════════════════════════════ */
.continuity { background: var(--surface); border-block: 1px solid var(--line); }
.continuity-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.continuity-item {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  padding: 1.5rem 1.4rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  color: inherit;
  transition: background var(--speed);
}
.continuity-item:hover { background: var(--accent-tint); }
.continuity-item .ci-idx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.continuity-item:hover .ci-idx { color: var(--ink); }
.continuity-item .ci-t { font-weight: 650; font-size: 1rem; letter-spacing: -0.01em; color: var(--ink); }
.continuity-item .ci-s { font-size: 0.86rem; color: var(--muted); line-height: 1.5; }

/* ════════════════════════════════════════════
   AUTOMATION (dark band)
   ════════════════════════════════════════════ */
.automation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.automation-grid .card { display: grid; gap: 0.6rem; align-content: start; }
.automation-grid .card p { font-size: 0.92rem; line-height: 1.55; }
.on-dark .automation-grid .card p { color: var(--dark-muted); }
.on-dark .automation-grid .h-card { color: #fff; }

/* ════════════════════════════════════════════
   INDUSTRIES
   ════════════════════════════════════════════ */
.industries-wrap {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.industry-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.industry-list .mono-tag { font-size: 0.78rem; padding: 0.5em 0.9em; }

/* ════════════════════════════════════════════
   CASE STUDIES — evidence cards
   ════════════════════════════════════════════ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.case-card { display: grid; gap: 0; padding: 0; overflow: hidden; }
.case-card .case-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1.3rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.case-card .case-head .case-no { color: var(--accent-text); font-weight: 600; }
.case-card .case-body { display: grid; gap: 0.9rem; padding: 1.3rem; }
.case-card .h-card { color: var(--ink); }
.case-row { display: grid; gap: 0.15rem; }
.case-row dt {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.case-row dd { font-size: 0.88rem; line-height: 1.5; color: var(--body); }
.case-card .case-foot {
  margin-top: auto;
  padding: 0.9rem 1.3rem;
  border-top: 1px solid var(--line);
}

/* ════════════════════════════════════════════
   PROCESS — 5-step flow
   ════════════════════════════════════════════ */
.process-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.step {
  position: relative;
  display: grid;
  gap: 0.6rem;
  align-content: start;
  padding: 1.5rem 1.3rem 1.8rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.step .step-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent-text);
}
.step .step-t { font-weight: 650; font-size: 0.98rem; letter-spacing: -0.01em; }
.step p { font-size: 0.86rem; line-height: 1.55; color: var(--muted); }
.step::after {
  content: "→";
  position: absolute;
  top: 1.35rem;
  right: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--line);
}
.step:last-child::after { display: none; }
.step:hover .step-idx { color: var(--ink); }

/* ════════════════════════════════════════════
   TECHNOLOGY
   ════════════════════════════════════════════ */
.tech-rows { display: grid; border-top: 1px solid var(--line); }
.tech-row {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}
.tech-row .tech-cat {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.tech-row .tech-cat::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--accent);
  flex: none;
}
.tech-row .tech-items { display: flex; flex-wrap: wrap; gap: 0.4rem 0.5rem; }
.tech-row .tech-items span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--body);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.35em 0.75em;
  transition: border-color var(--speed), color var(--speed);
}
.tech-row .tech-items span:hover { border-color: var(--ink); color: var(--ink); }

/* ════════════════════════════════════════════
   TESTIMONIAL
   ════════════════════════════════════════════ */
.testimonial { background: var(--surface); border-block: 1px solid var(--line); }
.testimonial .container {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.quote {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.015em;
  color: var(--ink);
  border-left: 3px solid var(--accent);
  padding-left: clamp(1.2rem, 2.5vw, 2rem);
}
.quote-attr {
  margin-top: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding-left: clamp(1.2rem, 2.5vw, 2rem);
}

/* ════════════════════════════════════════════
   FINAL CTA
   ════════════════════════════════════════════ */
.final-cta .container {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 1.4rem;
  max-width: 760px;
}
.final-cta .h-section { max-width: none; }
.final-cta .lede { max-width: 48ch; }
.final-cta .hero-ctas { justify-content: center; }

/* ════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════ */
.site-footer { background: var(--dark-950); color: var(--dark-text); }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) repeat(3, minmax(0, 2.5fr));
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-block: clamp(3rem, 6vw, 4.5rem) clamp(2rem, 4vw, 3rem);
}
.footer-brand { display: grid; gap: 1rem; align-content: start; justify-items: start; }
.footer-brand .brand { color: #fff; }
.footer-brand p { font-size: 0.88rem; color: var(--dark-muted); max-width: 30ch; }
.footer-col { display: grid; gap: 0.55rem; align-content: start; }
.footer-col .fc-t {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dark-muted);
  margin-bottom: 0.4rem;
}
.footer-col a { font-size: 0.88rem; color: var(--dark-text); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid var(--dark-line);
  padding-block: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--dark-muted);
}

/* ════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .process-flow { grid-template-columns: repeat(3, 1fr); }
  .automation-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1080px) {
  .main-nav { display: none; }
  .header-cta .btn { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 880px) {
  .hero .container { grid-template-columns: 1fr; }
  .industries-wrap { grid-template-columns: 1fr; }
  .testimonial .container { grid-template-columns: 1fr; }
  .continuity-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  :root { --col: calc(100% - 2.2rem); }

  .trust .container { grid-template-columns: repeat(2, 1fr); }
  .pillars-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .automation-grid { grid-template-columns: 1fr; }
  .continuity-list { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: 1fr; }
  .step::after { content: "↓"; top: auto; bottom: 0.9rem; }
  .tech-row { grid-template-columns: 1fr; gap: 0.8rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-ctas .btn { flex: 1 1 auto; }
}