/* ─────────────────────────────────────────────────────────────
   Optimizer Consulting — multi-page industrial editorial
   ───────────────────────────────────────────────────────────── */

:root {
  /* Light theme (paper) */
  --paper:        #f1ede4;
  --paper-sub:    #e7e1d4;
  --paper-card:   #f8f4ea;
  --paper-deep:   #ddd5c4;
  --ink:          #0f0d0b;
  --ink-2:        #2a2622;
  --ink-3:        #5a544c;
  --rule:         #cdc4b1;
  --rule-2:       #b5a98e;
  --accent:       #058283;    /* deep teal — original brand color */
  --accent-soft:  color-mix(in oklab, var(--accent) 14%, var(--paper));
  --accent-ink:   #ffffff;
  --blueprint:    color-mix(in oklab, var(--accent) 18%, transparent);

  --display: "Instrument Serif", "Newsreader", Georgia, serif;
  --sans:    "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --pad-x: clamp(20px, 5vw, 96px);
  --section-pad-y: clamp(64px, 9vw, 144px);
  --max: 1520px;
}

body.theme-dark {
  --paper:      #14110d;
  --paper-sub:  #1c1813;
  --paper-card: #1f1b15;
  --paper-deep: #2b2519;
  --ink:        #f1ece1;
  --ink-2:      #d7cfbe;
  --ink-3:      #8a826f;
  --rule:       #2f2920;
  --rule-2:     #4a4233;
  --accent:     #3eb5b3;
  --accent-soft: color-mix(in oklab, var(--accent) 12%, var(--paper));
  --blueprint:  color-mix(in oklab, var(--accent) 22%, transparent);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "ss02", "cv01";
  transition: background-color .3s ease, color .3s ease;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
em { font-style: italic; }
strong { font-weight: 600; }
button { font: inherit; }

/* ─── Typography ─── */
.display {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.94;
  margin: 0;
}
.display em { font-style: italic; padding-right: 0.06em; }
body.font-sans .display {
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 0.92;
}
body.font-sans .display em {
  font-style: normal;
  color: var(--accent);
}

.mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.accent { color: var(--accent); }
.serif-italic { font-family: var(--display); font-style: italic; }

/* ─────────────────────────────────────────────────────────────
   NAV (rendered by shell.js)
   ───────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(16px, 4vw, 48px);
  padding: 14px var(--pad-x);
  background: color-mix(in oklab, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid var(--rule);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}
.brand-mark {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
body.theme-dark .brand-mark img { filter: invert(1); }

.brand-word { display: flex; flex-direction: column; line-height: 1; }
.brand-line-1 {
  font-family: var(--display);
  font-size: 21px;
  letter-spacing: -0.01em;
}
body.font-sans .brand-line-1 { font-family: var(--sans); font-weight: 600; letter-spacing: -0.02em; }
.brand-line-2 {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 4px;
}

.nav-links { display: flex; align-items: center; justify-content: center; gap: 26px; flex-wrap: wrap; }
.nav-links a {
  position: relative;
  font-size: 13.5px;
  color: var(--ink-2);
  padding: 6px 2px;
  transition: color .15s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after { transform: scaleX(1); }

.nav-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--ink);
  color: var(--paper);
  background: var(--ink);
  font-size: 13px;
  border-radius: 999px;
  transition: background .15s, color .15s, border-color .15s;
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.nav-cta .cta-arrow { transition: transform .2s; }
.nav-cta:hover .cta-arrow { transform: translateX(3px); }

.nav-burger {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav-burger span { width: 14px; height: 1.25px; background: currentColor; display: block; }

@media (max-width: 900px) {
  .nav { grid-template-columns: auto auto; gap: 12px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: inline-flex; }
}

/* ─────────────────────────────────────────────────────────────
   MARQUEE strip (under nav on every page)
   ───────────────────────────────────────────────────────────── */
.marquee {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 1px solid var(--ink);
}
.marquee-track {
  display: inline-flex;
  white-space: nowrap;
  animation: marquee 38s linear infinite;
  padding: 12px 0;
  font-family: var(--display);
  font-size: clamp(20px, 2.2vw, 30px);
  letter-spacing: -0.005em;
  gap: 32px;
}
body.font-sans .marquee-track { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.marquee-track span { display: inline-flex; align-items: center; gap: 32px; }
.marquee-track em { color: var(--accent); font-style: italic; padding: 0 8px; }
body.font-sans .marquee-track em { font-style: normal; }
.marquee-dot { color: var(--accent); }
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─────────────────────────────────────────────────────────────
   SHARED — page intro / breadcrumb
   ───────────────────────────────────────────────────────────── */
.page-intro {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 80px) var(--pad-x) clamp(24px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: end;
  gap: clamp(24px, 4vw, 64px);
  border-bottom: 1px solid var(--rule);
}
.page-intro-crumb { color: var(--accent); margin-bottom: 16px; }
.page-intro-title {
  font-size: clamp(56px, 8.5vw, 140px);
  line-height: 1.0;
  text-wrap: balance;
}
.page-intro-blurb {
  font-size: clamp(15px, 1.2vw, 18px);
  max-width: 48ch;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0;
}
.page-intro-blurb strong { color: var(--ink); }
@media (max-width: 820px) {
  .page-intro { grid-template-columns: 1fr; align-items: start; }
}

/* ─────────────────────────────────────────────────────────────
   BUTTONS
   ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 14px 22px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  transition: transform .15s, background .15s, color .15s, border-color .15s;
}
.btn span[aria-hidden="true"] { transition: transform .2s; }
.btn:hover span[aria-hidden="true"] { transform: translateX(4px); }
.btn-primary { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--rule-2); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-accent { background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); }
.btn-accent:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* ─────────────────────────────────────────────────────────────
   HOME — Hero with blueprint grid
   ───────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 96px) var(--pad-x) var(--section-pad-y);
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--blueprint) 1px, transparent 1px),
    linear-gradient(to bottom, var(--blueprint) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 65% 50%, black 35%, transparent 85%);
          mask-image: radial-gradient(ellipse 70% 80% at 65% 50%, black 35%, transparent 85%);
  pointer-events: none;
}
.hero-meta {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
  margin-bottom: clamp(32px, 5vw, 64px);
}
.hero-meta-mid {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--accent);
  letter-spacing: 0.12em;
}
.hero-meta-mid::before, .hero-meta-mid::after {
  content: ""; width: 24px; height: 1px; background: var(--accent);
}

.hero-body {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}
.hero-text .display {
  font-size: clamp(60px, 11vw, 180px);
  line-height: 0.88;
}
.hero-text .display em { color: var(--accent); }

.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 24px;
  padding: 6px 12px;
  border: 1px solid var(--rule-2);
  border-radius: 999px;
  background: var(--paper);
}
.hero-tag-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  position: relative;
}
.hero-tag-dot::after {
  content: ""; position: absolute; inset: -4px;
  border-radius: 50%; border: 1px solid var(--accent);
  opacity: 0.5;
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.7; }
  100% { transform: scale(1.7); opacity: 0; }
}

.lede {
  margin-top: clamp(24px, 3vw, 36px);
  font-size: clamp(17px, 1.3vw, 21px);
  max-width: 48ch;
  color: var(--ink-2);
  line-height: 1.55;
}
.hero-ctas { display: flex; gap: 14px; margin-top: clamp(28px, 4vw, 44px); flex-wrap: wrap; }

/* Annotated drawing frame */
.drawing {
  margin: 0;
  position: relative;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, color-mix(in oklab, var(--rule-2) 30%, transparent) 39px, color-mix(in oklab, var(--rule-2) 30%, transparent) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, color-mix(in oklab, var(--rule-2) 30%, transparent) 39px, color-mix(in oklab, var(--rule-2) 30%, transparent) 40px),
    var(--paper-sub);
  border: 1px solid var(--rule);
  aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(28px, 4vw, 56px);
  overflow: hidden;
}
.drawing::before {
  content: ""; position: absolute; inset: 14px; border: 1px dashed var(--rule-2); pointer-events: none;
}
.drawing-corner {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.drawing-corner.tl { top: 10px; left: 14px; }
.drawing-corner.tr { top: 10px; right: 14px; }
.drawing-corner.bl { bottom: 10px; left: 14px; }
.drawing-corner.br { bottom: 10px; right: 14px; }
.drawing img {
  max-height: 100%; max-width: 100%; width: auto; object-fit: contain;
  filter: grayscale(100%) contrast(1.05);
  mix-blend-mode: multiply;
  position: relative; z-index: 1;
}
body.theme-dark .drawing img {
  filter: grayscale(100%) contrast(1.15) invert(1);
  mix-blend-mode: screen;
}

/* Callout pins on drawings */
.callout {
  position: absolute;
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  z-index: 2;
}
.callout-dot {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1.25px solid var(--accent);
  background: var(--paper);
  color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 10px;
  font-weight: 500;
  flex-shrink: 0;
}
.callout-line {
  flex-shrink: 0;
  height: 1px;
  width: 36px;
  background: var(--accent);
}
.callout-label {
  background: var(--paper);
  padding: 3px 7px;
  border: 1px solid var(--rule);
  white-space: nowrap;
}

.drawing-caption {
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}
.drawing-caption .tag { color: var(--accent); font-weight: 500; }

/* Hero stats strip below */
.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  max-width: var(--max);
  margin: 0 auto;
}
.stat {
  padding: clamp(28px, 4vw, 56px) clamp(16px, 2vw, 28px);
  border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 14px;
}
.stat:last-child { border-right: 0; }
.stat-num {
  font-family: var(--display);
  font-size: clamp(48px, 6vw, 88px);
  line-height: 0.9; letter-spacing: -0.02em;
  color: var(--ink);
}
body.font-sans .stat-num { font-family: var(--sans); font-weight: 500; letter-spacing: -0.04em; }
.stat-num .plus, .stat-num .unit {
  font-size: 0.5em; vertical-align: top; margin-left: 2px; color: var(--accent);
}
.stat-label { font-size: 10.5px; line-height: 1.5; color: var(--ink-3); }
@media (max-width: 820px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
}

/* ─────────────────────────────────────────────────────────────
   MANIFESTO / PULL QUOTE
   ───────────────────────────────────────────────────────────── */
.manifesto {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
  position: relative;
}
.manifesto-quote {
  font-family: var(--display);
  font-size: clamp(40px, 6.5vw, 108px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 22ch;
}
body.font-sans .manifesto-quote { font-family: var(--sans); font-weight: 400; letter-spacing: -0.03em; }
.manifesto-quote em { color: var(--accent); font-style: italic; }
body.font-sans .manifesto-quote em { font-style: normal; }
.manifesto-quote::before {
  content: "“";
  font-family: var(--display);
  display: inline-block;
  color: var(--accent);
  font-size: 1.2em;
  line-height: 0.4;
  margin-right: 0.08em;
  transform: translateY(0.18em);
}
.manifesto-attr {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  border-top: 1px solid var(--rule);
  padding-top: 18px;
}
.manifesto-attr-name { font-size: 14px; }
.manifesto-attr-role { color: var(--ink-3); font-size: 12px; }

/* ─────────────────────────────────────────────────────────────
   SERVICES (home teasers)
   ───────────────────────────────────────────────────────────── */
.section-head {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x) clamp(32px, 5vw, 64px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}
.section-num { color: var(--accent); font-weight: 500; }
.section-title { font-size: clamp(54px, 7.5vw, 124px); }
.section-kicker {
  font-size: clamp(15px, 1.2vw, 18px);
  max-width: 56ch;
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0;
}
.section-head-split { grid-template-columns: 1fr 1fr; align-items: end; gap: clamp(24px, 4vw, 80px); }
@media (max-width: 820px) { .section-head-split { grid-template-columns: 1fr; align-items: start; } }

.svc-list-rows {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  border-top: 1px solid var(--rule);
}
.svc-row {
  display: grid;
  grid-template-columns: 80px 1.1fr 1fr;
  gap: clamp(20px, 3vw, 56px);
  padding: clamp(28px, 4vw, 48px) 0;
  border-bottom: 1px solid var(--rule);
  align-items: center;
  position: relative;
  transition: background .25s, padding .25s;
}
.svc-row:hover { background: color-mix(in oklab, var(--accent) 5%, transparent); padding-left: 12px; padding-right: 12px; }
.svc-row-num {
  font-family: var(--display);
  font-size: clamp(28px, 3vw, 44px);
  color: var(--accent);
  letter-spacing: -0.01em;
}
body.font-sans .svc-row-num { font-family: var(--sans); font-weight: 500; }
.svc-row-title {
  font-family: var(--display);
  font-size: clamp(28px, 3.6vw, 52px);
  line-height: 1; letter-spacing: -0.02em;
}
body.font-sans .svc-row-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.svc-row-blurb { color: var(--ink-2); font-size: 15px; line-height: 1.55; max-width: 50ch; }
.svc-row-arrow {
  position: absolute;
  right: 0; top: 50%; transform: translateY(-50%);
  font-size: 28px; color: var(--accent);
  opacity: 0; transition: opacity .2s, transform .2s;
}
.svc-row:hover .svc-row-arrow { opacity: 1; transform: translate(8px, -50%); }
@media (max-width: 820px) {
  .svc-row { grid-template-columns: 1fr; gap: 12px; }
}

/* ─────────────────────────────────────────────────────────────
   FEATURE BLOCK (home — engineering leadership)
   ───────────────────────────────────────────────────────────── */
.feature {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x);
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}
.feature.flip { direction: rtl; }
.feature.flip > * { direction: ltr; }
.feature-copy { max-width: 50ch; }
.feature-tag { color: var(--accent); margin-bottom: 18px; }
.feature-title {
  font-family: var(--display);
  font-size: clamp(40px, 5.5vw, 80px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}
body.font-sans .feature-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.feature-title em { color: var(--accent); font-style: italic; }
body.font-sans .feature-title em { font-style: normal; }
.feature-p { font-size: 16px; color: var(--ink-2); line-height: 1.65; margin: 0 0 20px; }
.feature-list {
  list-style: none; margin: 24px 0 0; padding: 16px 0 0;
  border-top: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 10px;
  font-size: 13px;
}
.feature-list li { display: grid; grid-template-columns: 22px 1fr; align-items: baseline; gap: 8px; }
.feature-list li .mono { color: var(--accent); }
@media (max-width: 820px) {
  .feature, .feature.flip { grid-template-columns: 1fr; direction: ltr; }
}

/* ─────────────────────────────────────────────────────────────
   BADGE STAMPS
   ───────────────────────────────────────────────────────────── */
.stamps {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 2.5vw, 32px);
  justify-content: center;
  align-items: center;
}
.stamp {
  width: clamp(120px, 14vw, 168px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  text-align: center;
  font-family: var(--display);
  letter-spacing: -0.005em;
  background: var(--paper);
  transform: rotate(-3deg);
  transition: transform .3s ease;
}
.stamp:nth-child(2n) { transform: rotate(2deg); }
.stamp:nth-child(3n) { transform: rotate(-1deg); }
.stamp:hover { transform: rotate(0) scale(1.05); }
.stamp::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px dashed var(--accent);
  border-radius: 50%;
}
.stamp-inner {
  display: flex; flex-direction: column; align-items: center;
  font-size: clamp(18px, 2vw, 28px);
  line-height: 1;
}
body.font-sans .stamp-inner { font-family: var(--sans); font-weight: 600; letter-spacing: -0.02em; }
.stamp-inner small {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: 6px;
  color: var(--accent);
}

/* ─────────────────────────────────────────────────────────────
   PORTFOLIO page grid
   ───────────────────────────────────────────────────────────── */
.port-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2vw, 28px);
}
.port-card {
  margin: 0;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .3s ease;
}
.port-card:hover { transform: translateY(-4px); }
.port-card-img {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 31px, color-mix(in oklab, var(--rule-2) 28%, transparent) 31px, color-mix(in oklab, var(--rule-2) 28%, transparent) 32px),
    repeating-linear-gradient(90deg, transparent 0, transparent 31px, color-mix(in oklab, var(--rule-2) 28%, transparent) 31px, color-mix(in oklab, var(--rule-2) 28%, transparent) 32px),
    var(--paper-sub);
  padding: clamp(20px, 3vw, 36px);
  aspect-ratio: 4 / 3;
  position: relative;
}
.port-card-img::before { content: ""; position: absolute; inset: 12px; border: 1px dashed var(--rule-2); }
.port-card-img img {
  max-height: 100%; max-width: 100%; width: auto; object-fit: contain;
  filter: grayscale(100%) contrast(1.05);
  mix-blend-mode: multiply;
  transition: transform .6s ease;
}
.port-card:hover .port-card-img img { transform: scale(1.04); }
body.theme-dark .port-card-img img { filter: grayscale(100%) contrast(1.15) invert(1); mix-blend-mode: screen; }
.port-card-corner {
  position: absolute; top: 12px; left: 14px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  color: var(--ink-3); text-transform: uppercase;
}
.port-card-body {
  padding: 18px 22px 22px;
  border-top: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 8px;
}
.port-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
  color: var(--ink-3); text-transform: uppercase;
}
.port-card-meta .tag { color: var(--accent); }
.port-card-title {
  font-family: var(--display);
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
}
body.font-sans .port-card-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.port-card-desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.5; }

.port-card.span-7 { grid-column: span 7; }
.port-card.span-5 { grid-column: span 5; }
.port-card.span-6 { grid-column: span 6; }
.port-card.span-4 { grid-column: span 4; }
.port-card.span-8 { grid-column: span 8; }
.port-card.span-12 { grid-column: span 12; }
.port-card.span-12 .port-card-img { aspect-ratio: 32 / 10; }
@media (max-width: 900px) {
  .port-grid { grid-template-columns: 1fr; }
  .port-card[class*="span-"] { grid-column: span 1; }
}

/* ─────────────────────────────────────────────────────────────
   SUCCESS STORIES page
   ───────────────────────────────────────────────────────────── */
.story {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 80px) var(--pad-x);
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
  border-top: 1px solid var(--rule);
}
.story:first-of-type { border-top: 0; }
.story-tag { color: var(--accent); margin-bottom: 16px; }
.story-title {
  font-family: var(--display);
  font-size: clamp(42px, 5.5vw, 80px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}
body.font-sans .story-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.story-title em { color: var(--accent); font-style: italic; }
body.font-sans .story-title em { font-style: normal; }
.story-lede { font-size: 17px; color: var(--ink-2); line-height: 1.55; margin: 0 0 24px; max-width: 48ch; }
.story-points {
  list-style: none; margin: 0; padding: 18px 0 0;
  border-top: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 12px;
  font-size: 14.5px;
  max-width: 52ch;
}
.story-points li { display: grid; grid-template-columns: 24px 1fr; gap: 8px; color: var(--ink-2); line-height: 1.55; }
.story-points li .mono { color: var(--accent); }
.story-kpis {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 28px; padding-top: 20px;
  border-top: 1px solid var(--rule);
}
.kpi-num {
  font-family: var(--display);
  font-size: clamp(34px, 3.6vw, 52px);
  line-height: 1; letter-spacing: -0.02em;
}
body.font-sans .kpi-num { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.kpi-num .unit { font-size: 0.5em; color: var(--accent); margin-left: 2px; }
.kpi-lab { margin-top: 8px; font-size: 10px; }

.story-fig {
  margin: 0;
  position: relative;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 40px),
    var(--paper-sub);
  border: 1px solid var(--rule);
  aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(20px, 3vw, 48px);
  overflow: hidden;
}
.story-fig::before { content: ""; position: absolute; inset: 14px; border: 1px dashed var(--rule-2); }
.story-fig img {
  max-height: 100%; max-width: 100%; object-fit: contain;
  filter: grayscale(100%) contrast(1.05); mix-blend-mode: multiply;
  position: relative; z-index: 1;
}
body.theme-dark .story-fig img { filter: grayscale(100%) contrast(1.15) invert(1); mix-blend-mode: screen; }
.story-fig-tall { aspect-ratio: 3 / 4; }
.story-fig-wide { aspect-ratio: 21 / 9; }
.story.flip { grid-template-columns: 1.15fr 0.85fr; }
.story.flip > .story-fig { order: -1; }
.story-gallery .story-fig { grid-column: 1 / -1; }
@media (max-width: 900px) {
  .story, .story.flip { grid-template-columns: 1fr; }
  .story.flip > .story-fig { order: 0; }
}

.knuckle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 1.6vw, 20px);
  margin-top: 32px;
}
.knuckle-grid figure {
  margin: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 23px, color-mix(in oklab, var(--rule-2) 28%, transparent) 23px, color-mix(in oklab, var(--rule-2) 28%, transparent) 24px),
    repeating-linear-gradient(90deg, transparent 0, transparent 23px, color-mix(in oklab, var(--rule-2) 28%, transparent) 23px, color-mix(in oklab, var(--rule-2) 28%, transparent) 24px),
    var(--paper);
  border: 1px solid var(--rule);
  aspect-ratio: 1;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  padding: 14px;
}
.knuckle-grid figure::before { content: ""; position: absolute; inset: 10px; border: 1px dashed var(--rule-2); pointer-events: none; }
.knuckle-grid img { max-height: 78%; width: auto; object-fit: contain; filter: grayscale(100%) contrast(1.05); mix-blend-mode: multiply; }
body.theme-dark .knuckle-grid img { filter: grayscale(100%) contrast(1.15) invert(1); mix-blend-mode: screen; }
.knuckle-grid figcaption {
  position: absolute; bottom: 10px; left: 12px;
  font-family: var(--mono); font-size: 9.5px;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3);
}
@media (max-width: 900px) { .knuckle-grid { grid-template-columns: repeat(2, 1fr); } }

/* ─────────────────────────────────────────────────────────────
   CAPABILITIES page
   ───────────────────────────────────────────────────────────── */
.cap-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
}
.cap-col-label { color: var(--accent); margin-bottom: 18px; }
.cap-list { list-style: none; padding: 0; margin: 0; }
.cap-list li {
  font-family: var(--display);
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  position: relative;
  padding-left: 26px;
}
body.font-sans .cap-list li { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.cap-list li::before {
  content: counter(cap, decimal-leading-zero);
  counter-increment: cap;
  position: absolute; left: 0; top: 22px;
  font-family: var(--mono); font-size: 10px;
  color: var(--accent); letter-spacing: 0.1em;
}
.cap-list { counter-reset: cap; }
.cap-list li:last-child { border-bottom: 0; }

.chip {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}
.chip-ghost { background: transparent; color: var(--ink); border: 1px solid var(--rule-2); }
.cad-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.cap-col-label-2 { margin-top: 28px; }
@media (max-width: 900px) { .cap-grid { grid-template-columns: 1fr; } }

/* Software diagram for capabilities */
.cap-workflow {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
}
.workflow-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  position: relative;
}
.workflow-step {
  padding: clamp(24px, 3vw, 40px);
  border-right: 1px solid var(--rule);
  position: relative;
}
.workflow-step:last-child { border-right: 0; }
.workflow-step-num {
  font-family: var(--mono); font-size: 10px;
  color: var(--accent); letter-spacing: 0.15em;
}
.workflow-step-title {
  font-family: var(--display);
  font-size: clamp(20px, 1.7vw, 24px);
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin: 12px 0 8px;
}
body.font-sans .workflow-step-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.workflow-step-blurb { font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }
@media (max-width: 900px) {
  .workflow-track { grid-template-columns: 1fr; }
  .workflow-step { border-right: 0; border-bottom: 1px solid var(--rule); }
  .workflow-step:last-child { border-bottom: 0; }
}

/* ─────────────────────────────────────────────────────────────
   CUSTOMERS page
   ───────────────────────────────────────────────────────────── */
.industries {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x);
  border-bottom: 1px solid var(--rule);
}
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.industry {
  position: relative;
  padding: clamp(28px, 4vw, 48px);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-card);
  transition: background .25s;
  min-height: 220px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.industry:hover { background: color-mix(in oklab, var(--accent) 6%, var(--paper-card)); }
.industry-num { color: var(--accent); margin-bottom: 12px; }
.industry-name {
  font-family: var(--display);
  font-size: clamp(28px, 2.8vw, 40px);
  letter-spacing: -0.015em;
  line-height: 1.04;
  margin: 0 0 8px;
}
body.font-sans .industry-name { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.industry-desc { font-size: 13px; color: var(--ink-3); line-height: 1.5; margin-bottom: 12px; }
.industry-tags { display: flex; gap: 8px; flex-wrap: wrap; font-family: var(--mono); font-size: 10px; color: var(--ink-3); }
.industry-tags span { padding: 4px 10px; border: 1px solid var(--rule); border-radius: 999px; letter-spacing: 0.08em; text-transform: uppercase; }
@media (max-width: 900px) { .industries-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .industries-grid { grid-template-columns: 1fr; } }

/* Customer logo wall (placeholder wordmarks since real names are under NDA) */
.logo-wall {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-pad-y) var(--pad-x);
}
.logo-wall-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 40px; }
.logo-wall-head h2 {
  font-family: var(--display);
  font-size: clamp(36px, 4.5vw, 64px);
  letter-spacing: -0.02em; line-height: 0.95;
  margin: 0; max-width: 18ch;
}
body.font-sans .logo-wall-head h2 { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.logo-wall-head p { font-size: 14px; color: var(--ink-3); max-width: 32ch; margin: 0; }

.logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--rule);
}
.logo-cell {
  aspect-ratio: 16 / 9;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  gap: 8px;
  position: relative;
  background: var(--paper-card);
  transition: background .2s;
  padding: 16px;
}
.logo-cell:nth-child(4n) { border-right: 0; }
.logo-cell:nth-last-child(-n+4) { border-bottom: 0; }
.logo-cell:hover { background: var(--paper-sub); }
.logo-mark {
  font-family: var(--display);
  font-size: clamp(20px, 2vw, 30px);
  letter-spacing: -0.02em;
  color: var(--ink);
  text-align: center;
}
body.font-sans .logo-mark { font-family: var(--sans); font-weight: 600; letter-spacing: -0.03em; }
.logo-tag {
  font-family: var(--mono); font-size: 9px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3);
}
.logo-cell::before {
  content: "NDA";
  position: absolute; top: 8px; right: 10px;
  font-family: var(--mono); font-size: 8.5px;
  letter-spacing: 0.16em; color: var(--accent);
}
@media (max-width: 900px) {
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-cell:nth-child(4n) { border-right: 1px solid var(--rule); }
  .logo-cell:nth-child(2n) { border-right: 0; }
  .logo-cell:nth-last-child(-n+4) { border-bottom: 1px solid var(--rule); }
  .logo-cell:nth-last-child(-n+2) { border-bottom: 0; }
}

/* Patent feature */
.patent {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
}
.patent-card {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(32px, 5vw, 72px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
  position: relative;
  overflow: hidden;
}
.patent-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--accent) 25%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--accent) 25%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(circle at 70% 50%, black, transparent 70%);
          mask-image: radial-gradient(circle at 70% 50%, black, transparent 70%);
  pointer-events: none;
}
.patent-tag { color: var(--accent); }
.patent-title {
  font-family: var(--display);
  font-size: clamp(36px, 5vw, 72px);
  line-height: 0.96; letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 16px;
}
body.font-sans .patent-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.patent-title em { color: var(--accent); font-style: italic; }
body.font-sans .patent-title em { font-style: normal; }
.patent-blurb { font-size: 15px; line-height: 1.55; color: color-mix(in oklab, var(--paper) 78%, transparent); max-width: 50ch; }
.patent-seal {
  display: flex; align-items: center; justify-content: center;
  position: relative; z-index: 1;
}
.patent-seal-circle {
  width: clamp(180px, 22vw, 280px); aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  text-align: center;
  transform: rotate(-6deg);
}
.patent-seal-circle::before { content: ""; position: absolute; inset: 12px; border-radius: 50%; border: 1px dashed var(--accent); }
.patent-seal-inner {
  font-family: var(--display); font-size: clamp(20px, 2.2vw, 28px);
  letter-spacing: -0.01em; line-height: 1;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
body.font-sans .patent-seal-inner { font-family: var(--sans); font-weight: 600; letter-spacing: -0.02em; }
.patent-seal-inner small {
  font-family: var(--mono); font-size: 9.5px;
  letter-spacing: 0.18em; text-transform: uppercase;
}
@media (max-width: 900px) {
  .patent-card { grid-template-columns: 1fr; }
}

/* ─────────────────────────────────────────────────────────────
   CONTACT page
   ───────────────────────────────────────────────────────────── */
.contact-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 96px) var(--pad-x) clamp(40px, 5vw, 80px);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
}
.contact-headshot {
  margin: 0;
  position: relative;
  background:
    repeating-linear-gradient(0deg, transparent 0, transparent 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 40px),
    repeating-linear-gradient(90deg, transparent 0, transparent 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 39px, color-mix(in oklab, var(--rule-2) 28%, transparent) 40px),
    var(--paper-sub);
  border: 1px solid var(--rule);
  padding: clamp(20px, 3vw, 36px);
  aspect-ratio: 4 / 5;
}
.contact-headshot::before { content: ""; position: absolute; inset: 14px; border: 1px dashed var(--rule-2); pointer-events: none; }
.contact-headshot img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
  position: relative; z-index: 1;
}
.contact-headshot-corner {
  position: absolute; bottom: 14px; right: 18px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-3); z-index: 2;
  background: var(--paper);
  padding: 4px 8px;
  border: 1px solid var(--rule);
}

.contact-bio { display: flex; flex-direction: column; gap: 18px; }
.contact-bio-tag { color: var(--accent); }
.contact-bio-name {
  font-family: var(--display);
  font-size: clamp(52px, 7vw, 100px);
  line-height: 0.92; letter-spacing: -0.02em;
  margin: 0;
}
body.font-sans .contact-bio-name { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.contact-bio-name em { color: var(--accent); font-style: italic; }
body.font-sans .contact-bio-name em { font-style: normal; }
.contact-bio-role { font-size: 16px; color: var(--ink-3); margin-top: -8px; }
.contact-bio-body p { font-size: 16px; color: var(--ink-2); line-height: 1.65; margin: 0 0 12px; }

@media (max-width: 820px) {
  .contact-hero { grid-template-columns: 1fr; align-items: start; }
}

.contact-methods {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
}
.contact-methods-head {
  display: flex; justify-content: space-between; align-items: end;
  border-top: 1px solid var(--rule);
  padding-top: 24px; margin-bottom: 32px;
  gap: 24px;
}
.contact-methods-head h2 {
  font-family: var(--display);
  font-size: clamp(36px, 4.5vw, 64px);
  letter-spacing: -0.02em; line-height: 1; margin: 0;
}
body.font-sans .contact-methods-head h2 { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(12px, 1.5vw, 20px);
}
.contact-card {
  position: relative;
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--rule);
  background: var(--paper-card);
  display: flex; flex-direction: column; gap: 14px;
  min-height: 200px;
  transition: background .2s, border-color .2s;
}
.contact-card:hover { background: var(--paper-sub); border-color: var(--accent); }
.contact-card-label { color: var(--accent); }
.contact-card-value {
  font-family: var(--display);
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.15; letter-spacing: -0.01em;
  word-break: break-word;
}
body.font-sans .contact-card-value { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.contact-card-arrow {
  margin-top: auto; align-self: flex-end;
  font-size: 22px; color: var(--accent);
  transition: transform .2s;
}
.contact-card:hover .contact-card-arrow { transform: translateX(4px); }
@media (max-width: 820px) { .contact-cards { grid-template-columns: 1fr; } }

/* Contact form */
.contact-form {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
}
.contact-form-card {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(32px, 4vw, 64px);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(24px, 4vw, 64px);
  position: relative;
  overflow: hidden;
}
.contact-form-card::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--accent) 22%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--accent) 22%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(circle at 10% 50%, black, transparent 60%);
          mask-image: radial-gradient(circle at 10% 50%, black, transparent 60%);
  pointer-events: none;
}
.contact-form-intro { position: relative; z-index: 1; }
.contact-form-intro h2 {
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 56px);
  letter-spacing: -0.02em; line-height: 0.98;
  margin: 12px 0 16px;
  color: var(--paper);
}
body.font-sans .contact-form-intro h2 { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.contact-form-intro h2 em { color: var(--accent); font-style: italic; }
body.font-sans .contact-form-intro h2 em { font-style: normal; }
.contact-form-intro p { font-size: 14px; color: color-mix(in oklab, var(--paper) 75%, transparent); max-width: 36ch; }

.cf-form { display: flex; flex-direction: column; gap: 18px; position: relative; z-index: 1; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.cf-field { display: flex; flex-direction: column; gap: 6px; }
.cf-field label {
  font-family: var(--mono);
  font-size: 9.5px; letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.cf-field input, .cf-field textarea {
  background: transparent;
  border: 0;
  border-bottom: 1px solid color-mix(in oklab, var(--paper) 25%, transparent);
  color: var(--paper);
  padding: 10px 0;
  font: inherit;
  font-size: 16px;
  outline: none;
  transition: border-color .2s;
}
.cf-field input:focus, .cf-field textarea:focus { border-bottom-color: var(--accent); }
.cf-field input::placeholder, .cf-field textarea::placeholder { color: color-mix(in oklab, var(--paper) 40%, transparent); }
.cf-actions { display: flex; gap: 16px; align-items: center; margin-top: 8px; }
.cf-actions .btn-accent { padding: 16px 26px; }
.cf-actions small { color: color-mix(in oklab, var(--paper) 55%, transparent); font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; }

/* Long-form prose for legal / about-style pages */
.prose-section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
}
.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.prose .prose-meta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
}
.prose h2 {
  font-family: var(--display);
  font-size: clamp(22px, 2vw, 28px);
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--ink);
  margin: 40px 0 12px;
}
body.font-sans .prose h2 { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.prose h2:first-of-type { margin-top: 0; }
.prose p { margin: 0 0 16px; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.prose a:hover { color: var(--ink); }
.prose strong { color: var(--ink); font-weight: 600; }

/* FAQ section — accessible native <details>, brand-styled */
.faq-section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) var(--section-pad-y);
}
.faq-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: clamp(24px, 4vw, 80px);
  border-top: 1px solid var(--rule);
  padding-top: 24px;
  margin-bottom: 32px;
}
.faq-head h2 {
  font-family: var(--display);
  font-size: clamp(36px, 4.5vw, 64px);
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0;
}
body.font-sans .faq-head h2 { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.faq-head h2 em { color: var(--accent); font-style: italic; }
body.font-sans .faq-head h2 em { font-style: normal; }
@media (max-width: 820px) { .faq-head { grid-template-columns: 1fr; align-items: start; } }

.faq-list { display: flex; flex-direction: column; }
.faq-item {
  border-top: 1px solid var(--rule);
  padding: 22px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--rule); }
.faq-item summary {
  display: grid;
  grid-template-columns: 36px 1fr 24px;
  gap: 18px;
  align-items: baseline;
  cursor: pointer;
  list-style: none;
  font-family: var(--display);
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color .15s;
}
body.font-sans .faq-item summary { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.faq-toggle {
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
  text-align: right;
  transition: transform .25s ease;
}
.faq-item[open] .faq-toggle { transform: rotate(45deg); }
.faq-answer {
  padding: 14px 0 0 54px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 70ch;
}
.faq-answer p { margin: 0 0 12px; }
.faq-answer p:last-child { margin: 0; }
@media (max-width: 820px) {
  .faq-answer { padding-left: 0; }
  .faq-item summary { grid-template-columns: 28px 1fr 20px; gap: 12px; }
}

/* Success banner shown after FormSubmit redirect (?sent=1) */
.cf-sent {
  grid-column: 1 / -1;
  position: relative;
  z-index: 1;
  padding: 18px 22px;
  margin-bottom: 8px;
  background: color-mix(in oklab, var(--accent) 18%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 55%, transparent);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.55;
}
.cf-sent strong { color: var(--paper); font-weight: 600; letter-spacing: -0.01em; }
.cf-sent a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.cf-sent a:hover { color: var(--paper); }

@media (max-width: 820px) {
  .contact-form-card { grid-template-columns: 1fr; }
  .cf-row { grid-template-columns: 1fr; }
}

/* ─────────────────────────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────────────────────────── */
.foot {
  background: var(--paper-sub);
  color: var(--ink);
  padding: clamp(56px, 7vw, 96px) var(--pad-x) clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--rule);
}
.foot-cta {
  max-width: var(--max);
  margin: 0 auto clamp(48px, 6vw, 72px);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: end;
}
.foot-cta-title {
  font-family: var(--display);
  font-size: clamp(40px, 6vw, 92px);
  line-height: 0.94; letter-spacing: -0.02em;
  margin: 0;
  max-width: 18ch;
}
body.font-sans .foot-cta-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.03em; }
.foot-cta-title em { color: var(--accent); font-style: italic; }
body.font-sans .foot-cta-title em { font-style: normal; }
.foot-cta-right { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.foot-row {
  max-width: var(--max);
  margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 20px;
}
.brand-foot .brand-line-1 { font-size: 18px; }
.foot-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-nav a { font-size: 13px; color: var(--ink-2); padding: 4px 0; border-bottom: 1px solid transparent; }
.foot-nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }
.foot-rule { max-width: var(--max); margin: clamp(28px, 4vw, 40px) auto; height: 1px; background: var(--rule); }
.foot-row-meta { font-size: 10.5px; color: var(--ink-3); }
.foot-row-meta .mono { color: var(--ink-3); }
@media (max-width: 820px) {
  .foot-cta { grid-template-columns: 1fr; align-items: start; }
}

/* Print */
@media print {
  .nav, .marquee, #tweaks-root { display: none !important; }
}


/* ─────────────────────────────────────────────────────────────
   CUSTOMERS — Real client roster cards
   ───────────────────────────────────────────────────────────── */
.cust-roster {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 80px) var(--pad-x) 0;
}
.roster-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}
.roster-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(28px, 3vw, 40px);
  min-height: 240px;
  background: var(--paper-card);
  border: 1px solid var(--rule);
  color: var(--ink);
  text-decoration: none;
  overflow: hidden;
}
.roster-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 14%, transparent), transparent 55%);
  opacity: 0;
  transition: opacity .35s ease;
  pointer-events: none;
}
.roster-card:hover::before { opacity: 1; }
.roster-card:hover { border-color: var(--accent); }
.roster-card-wide { grid-column: span 2; }
.roster-num { color: var(--accent); }
.roster-mark {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.0;
  letter-spacing: -0.022em;
  font-family: var(--display);
  overflow-wrap: anywhere;
}
body.font-sans .roster-mark { font-family: var(--sans); font-weight: 600; letter-spacing: -0.03em; }
.roster-mark-line-1 { font-size: clamp(24px, 2.6vw, 34px); }
.roster-mark-line-2 { font-size: clamp(24px, 2.6vw, 34px); font-style: italic; color: var(--accent); }
body.font-sans .roster-mark-line-2 { font-style: normal; }
.roster-tags {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.roster-tags span {
  padding: 4px 10px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.roster-arrow {
  position: absolute;
  top: clamp(24px, 3vw, 36px);
  right: clamp(24px, 3vw, 36px);
  font-size: 22px;
  color: var(--accent);
  transition: transform .25s ease;
}
.roster-card:hover .roster-arrow { transform: translate(4px, -4px); }

.roster-card-empty {
  background: transparent;
  border-style: dashed;
  align-items: flex-start;
}
.roster-empty-mark {
  margin-top: 8px;
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(32px, 3.6vw, 48px);
  color: var(--ink-3);
  letter-spacing: -0.02em;
  line-height: 0.95;
}
body.font-sans .roster-empty-mark { font-family: var(--sans); font-weight: 400; font-style: italic; }
.roster-empty-blurb {
  margin-top: auto;
  font-size: 13px;
  color: var(--ink-3);
  max-width: 28ch;
  line-height: 1.5;
}
@media (max-width: 900px) {
  .roster-grid { grid-template-columns: 1fr 1fr; }
  .roster-card-wide { grid-column: span 2; }
}
@media (max-width: 560px) {
  .roster-grid { grid-template-columns: 1fr; }
  .roster-card-wide { grid-column: span 1; }
}

/* ─────────────────────────────────────────────────────────────
   PORTFOLIO — Patent register list
   ───────────────────────────────────────────────────────────── */
.patents-section {
  background: var(--paper-sub);
  padding-bottom: var(--section-pad-y);
}
.pat-list {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 56px);
}
.pat-group {
  display: flex;
  flex-direction: column;
}
.pat-group-label {
  color: var(--accent);
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--rule);
}
.pat-row {
  display: grid;
  grid-template-columns: 36px 1fr auto 24px;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink);
  text-decoration: none;
  align-items: center;
  position: relative;
}
.pat-row:hover { background: color-mix(in oklab, var(--accent) 6%, transparent); padding-left: 12px; padding-right: 12px; }
.pat-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.pat-title {
  font-family: var(--display);
  font-size: clamp(17px, 1.5vw, 22px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
body.font-sans .pat-title { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.pat-id { color: var(--ink-3); font-size: 11px; }
.pat-arrow { color: var(--accent); font-size: 18px; transition: transform .25s ease; }
.pat-row:hover .pat-arrow { transform: translate(3px, -3px); }
@media (max-width: 900px) {
  .pat-list { grid-template-columns: 1fr; }
  .pat-row { grid-template-columns: 28px 1fr 24px; }
  .pat-id { grid-column: 2; font-size: 10px; }
}

/* ─────────────────────────────────────────────────────────────
   CAPABILITIES — column cards + CAD stack tiles
   ───────────────────────────────────────────────────────────── */
.cap-cols {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 80px) var(--pad-x);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}
.cap-col-card {
  position: relative;
  padding: clamp(28px, 3vw, 40px);
  background: var(--paper-card);
  border: 1px solid var(--rule);
  min-height: 320px;
}
.cap-col-num {
  position: absolute;
  top: 20px; right: 24px;
  color: var(--accent);
}
.cap-col-label { color: var(--accent); margin-bottom: 24px; }
.cap-list { list-style: none; padding: 0; margin: 0; counter-reset: cap; }
.cap-list li {
  font-family: var(--display);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  padding: 14px 0 14px 32px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
body.font-sans .cap-list li { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.cap-list li::before {
  content: counter(cap, decimal-leading-zero);
  counter-increment: cap;
  position: absolute; left: 0; top: 20px;
  font-family: var(--mono); font-size: 10px;
  color: var(--accent); letter-spacing: 0.1em;
}
.cap-list li:last-child { border-bottom: 0; }

@media (max-width: 900px) {
  .cap-cols { grid-template-columns: 1fr; }
}

.cad-stack {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) clamp(40px, 6vw, 80px);
}
.cad-stack-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: clamp(24px, 4vw, 64px);
  margin-bottom: clamp(28px, 3vw, 40px);
  padding-top: clamp(32px, 4vw, 56px);
  border-top: 1px solid var(--rule);
}
.cad-stack-head h2 {
  font-size: clamp(36px, 4.5vw, 64px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
}
body.font-sans .cad-stack-head h2 { font-weight: 500; letter-spacing: -0.03em; }
.cad-stack-blurb {
  font-size: 15px; color: var(--ink-3); line-height: 1.55;
  margin: 0; max-width: 40ch;
}
.cad-stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--rule);
  background: var(--paper-card);
}
.cad-tile {
  padding: clamp(28px, 4vw, 56px);
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: background .25s ease;
}
.cad-tile:last-child { border-right: 0; }
.cad-tile:hover { background: color-mix(in oklab, var(--accent) 6%, var(--paper-card)); }
.cad-tile-mark {
  font-size: clamp(72px, 9vw, 128px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--ink);
}
body.font-sans .cad-tile-mark { font-weight: 600; }
.cad-tile-name {
  font-family: var(--display);
  font-size: clamp(20px, 1.8vw, 28px);
  letter-spacing: -0.01em;
}
body.font-sans .cad-tile-name { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.cad-tile-tag {
  font-size: 9.5px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-top: 4px;
}
@media (max-width: 900px) {
  .cad-stack-head { grid-template-columns: 1fr; }
  .cad-stack-grid { grid-template-columns: 1fr; }
  .cad-tile { border-right: 0; border-bottom: 1px solid var(--rule); }
  .cad-tile:last-child { border-bottom: 0; }
}

.industries-strip {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x) clamp(40px, 6vw, 80px);
}
.industries-strip-head {
  padding-top: clamp(28px, 3vw, 40px);
  margin-bottom: 18px;
  border-top: 1px solid var(--rule);
}
.industries-strip-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.industries-strip-tags span {
  padding: 12px 22px;
  border: 1px solid var(--rule-2);
  border-radius: 999px;
  font-family: var(--display);
  font-size: clamp(16px, 1.4vw, 20px);
  letter-spacing: -0.01em;
  transition: background .2s, border-color .2s, color .2s;
}
body.font-sans .industries-strip-tags span { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.industries-strip-tags span:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }


/* Contact bio LinkedIn block */
.bio-linkedin {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border: 1px solid var(--rule);
  background: var(--paper-card);
  color: var(--ink);
  text-decoration: none;
  margin-top: 8px;
  max-width: 440px;
  transition: background .2s, border-color .2s, transform .25s ease;
}
.bio-linkedin:hover {
  background: var(--paper-sub);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.bio-linkedin-icon {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent);
  color: var(--paper);
  border-radius: 50%;
}
.bio-linkedin-label { display: block; color: var(--accent); margin-bottom: 4px; }
.bio-linkedin-url {
  font-family: var(--display);
  font-size: 16px;
  letter-spacing: -0.01em;
}
body.font-sans .bio-linkedin-url { font-family: var(--sans); font-weight: 500; letter-spacing: -0.02em; }
.bio-linkedin-arrow { color: var(--accent); font-size: 18px; transition: transform .25s ease; }
.bio-linkedin:hover .bio-linkedin-arrow { transform: translate(3px, -3px); }


/* ─────────────────────────────────────────────────────────────
   MOBILE MENU — body.menu-open toggles the open state.
   shell.js wires the hamburger button to: document.body.classList.toggle('menu-open')
   ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  body.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 72px 0 auto 0;
    background: var(--paper);
    border-bottom: 1px solid var(--ink);
    padding: 24px 32px 32px;
    gap: 20px;
    z-index: 200;
    align-items: stretch;
    font-size: 22px;
    box-shadow: 0 12px 32px rgba(0,0,0,.12);
  }
  body.menu-open .nav-links a {
    padding: 10px 8px;
    border-bottom: 1px solid var(--rule-2);
  }
  body.menu-open .nav-links a:last-child {
    border-bottom: none;
  }
  body.menu-open .nav-cta {
    display: inline-flex;
    margin: 12px auto 0;
    align-self: center;
  }
  body.menu-open .nav-burger { background: var(--ink); color: var(--paper); }
  body.menu-open { overflow: hidden; }
}


/* ─── ROUND-2 FIX: contact-bio-name line-height + bottom space ─────────────
   The italic descender on "engineer." was colliding with the FOUNDER line
   below because line-height: 0.92 leaves no descender room when wrapped. */
.contact-bio-name {
  line-height: 1.0;
  padding-bottom: 0.18em;
}
.contact-bio-name em {
  display: inline-block;
  padding-bottom: 0.08em;
}
.contact-bio-role {
  margin-top: 8px;
}