/* ============================================================
   IRELAND DESIGN COMPANY: idc.css v6
   System-preference only light/dark. No toggle. No JS theming.
   WCAG AA compliant. Zero inline page styles.
   ============================================================ */


/* ── LIGHT MODE (default) ─────────────────────────────────── */
:root {
  /* Surfaces */
  --bg:           #f5f3ef;
  --surface:      #ffffff;
  --surface-2:    #ede9e3;
  /* Text: WCAG AA on white ≥ 4.5:1 */
  --ink:          #0f1318;
  --steel:        #4a5568;
  --steel-light:  #2d3748;
  /* Borders */
  --wire:         rgba(15,19,24,0.10);
  --wire-strong:  rgba(15,19,24,0.20);
  /* Brand */
  --amber:        #e87800;
  --amber-text:   #9a5000;
  --amber-dim:    rgba(232,120,0,0.13);
  --amber-glow:   rgba(232,120,0,0.06);
  /* Hero text (always on dark photo) */
  --hero-text:    #f5f3ef;
  --hero-sub:     rgba(245,241,232,0.96);
  /* Nav */
  --header-bg:    rgba(245,243,239,0.94);
  /* Misc */
  --max:          1240px;
  --r:            3px;
  --r-lg:         6px;
  --font-display: 'Bebas Neue', 'Arial Narrow', 'Roboto Condensed', Impact, sans-serif;
  --font-mono:    'IBM Plex Mono','Courier New',monospace;
  --font-body:    'IBM Plex Sans', system-ui, sans-serif;
  --bridge-accent:  #2563eb;
}

/* ── DARK MODE (system preference) ───────────────────────── */

@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #0a0c10;
    --surface:      #111520;
    --surface-2:    #171d28;
    /* Text: WCAG AA on #111520 ≥ 4.5:1 */
    --ink:          #edf2f7;
    --steel:        #94a3b8;
    --steel-light:  #cbd5e1;
    /* Borders */
    --wire:         rgba(148,163,184,0.14);
    --wire-strong:  rgba(148,163,184,0.28);
    /* Brand: slightly brighter in dark */
    --amber:        #ff9910;
    --amber-text:   #ff9910;
    --amber-dim:    rgba(255,153,16,0.14);
    --amber-glow:   rgba(255,153,16,0.07);
    /* Hero text (same: on dark photo) */
    --hero-text:    #f0f4f8;
    --hero-sub:     rgba(226,232,240,0.80);
    /* Nav */
    --header-bg:    rgba(10,12,16,0.94);
    --bridge-accent: #60a5fa;
  }

}


/* ── BASE ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; color-scheme: light dark; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Subtle grid texture */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, var(--wire) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, var(--wire) 40px);
  pointer-events: none; z-index: 0; opacity: .34;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; height: auto; }
ul { list-style: none; }

.container {
  width: 92%; max-width: var(--max);
  margin: 0 auto; position: relative; z-index: 1;
}

/* ── NAV ─────────────────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--wire);
  background: var(--header-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  height: 62px; gap: 20px;
}

.brand {
  display: flex; align-items: center;
  text-decoration: none; flex-shrink: 0;
}
.brand-logo-wordmark {
  height: 36px; width: auto; display: block;
  /* CSS color cascades into inline SVG fill="currentColor" */
  color: var(--ink);
}
/* Override SVG presentation attribute with CSS fill: works on all browsers incl. iOS Safari */
.brand-logo-wordmark path,
.brand-logo-wordmark g { fill: currentColor; }

.nav-links {
  display: flex; align-items: center; gap: 2px;
  flex: 1; justify-content: flex-end;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 1px;
  text-transform: uppercase; color: var(--steel);
  padding: 7px 13px; border: 1px solid transparent;
  border-radius: var(--r);
  transition: all .15s ease; white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--ink); border-color: var(--wire-strong);
  background: var(--surface);
}
.nav-links a.nav-cta {
  color: var(--ink) !important;
  background: var(--amber) !important;
  border-color: var(--amber-text) !important;
  font-weight: 600; margin-left: 8px;
}
.nav-links a.nav-cta:hover {
  opacity: .9;
  box-shadow: 0 4px 18px var(--amber-dim);
  transform: translateY(-1px);
}


/* ── FOCUS VISIBLE (keyboard navigation: WCAG 2.1 AA 2.4.7) ── */
.nav-links a:focus-visible,
.mobile-nav a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: var(--r);
}
.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.patent-row:focus-visible,
.nav-cta:focus-visible,
.footer-brand-link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: var(--r);
}
#backToTop:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
/* Mobile hamburger */
.nav-toggle {
  display: none; flex-direction: column;
  gap: 5px; cursor: pointer;
  padding: 8px; background: none; border: none;
  flex-shrink: 0;
}
.nav-toggle span {
  width: 20px; height: 2px;
  background: var(--steel); border-radius: 1px;
  transition: all .2s ease; display: block;
}
.mobile-nav {
  background: var(--header-bg);
  border-top: 1px solid var(--wire);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: block; max-height: 0; overflow: hidden;
  transition: max-height .28s cubic-bezier(.4,0,.2,1);
}
.mobile-nav.open { max-height: 400px; }
.mobile-nav a {
  display: block; padding: 14px 24px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--steel-light); border-bottom: 1px solid var(--wire);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--amber-text); }

/* ── HERO (full-bleed photo: always on dark image) ──────── */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; overflow: hidden;
}
.hero-bg {
  background-image: url("img/hero-mechanical-interface.webp");
  position: absolute; inset: 0;
  background-size: cover; background-position: center 30%;
  /* Visible but text stays legible */
  filter: brightness(.68) saturate(.75);
  transform: scale(1.03);
  animation: drift 34s ease-in-out infinite alternate;
}
/* Dark mode: slightly darker hero bg */
@media (prefers-color-scheme: dark) {
  .hero-bg {
  filter: brightness(.40) saturate(.65); }
}

@keyframes drift {
  from { transform: scale(1.03) translateX(0); }
  to   { transform: scale(1.045) translateX(-8px); }
}
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,.02) 0%, rgba(255,255,255,0) 26%,
      rgba(245,243,239,.22) 66%, rgba(245,243,239,.92) 100%),
    linear-gradient(90deg, rgba(6,8,14,.82) 0%, rgba(6,8,14,.58) 44%, rgba(6,8,14,.16) 72%, transparent 100%);
}
@media (prefers-color-scheme: dark) {
  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(10,12,16,.15) 0%, rgba(10,12,16,.04) 35%,
        rgba(10,12,16,.72) 82%, rgba(10,12,16,.97) 100%),
      linear-gradient(90deg, rgba(10,12,16,.72) 0%, rgba(10,12,16,.24) 50%, transparent 100%);
  }
}
.hero-content {
  position: relative; z-index: 2;
  padding: 104px 0 142px; max-width: 780px;
}
.eyebrow {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 28px;
  animation: fadeUp .6s ease .1s both;
}
.eyebrow-line { width: 36px; height: 1px; background: var(--amber); }
.eyebrow-text {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--amber-text);
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 11vw, 96px);
  line-height: .94; letter-spacing: 1.6px;
  overflow-wrap: anywhere;
  text-transform: uppercase;
  color: var(--hero-text);
  margin-bottom: 26px;
  min-height: .94em;
  text-wrap: balance;
  text-rendering: optimizeLegibility;
  animation: fadeUp .7s ease .2s both;
}
.hero h1 em { font-style: normal; color: var(--amber-text); }

.hero-lead {
  font-size: clamp(16px, 1.65vw, 18px); line-height: 1.6;
  color: var(--hero-sub); max-width: 56ch;
  margin-bottom: 18px; font-weight: 300;
  animation: fadeUp .7s ease .3s both;
}

.hero-microcopy {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.65;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: rgba(245,241,232,.84);
  max-width: 58ch;
  margin: -2px 0 20px;
  animation: fadeUp .7s ease .35s both;
}
.cost-line {
  font-family: var(--font-mono); font-size: 13px;
  color: rgba(210,200,185,.80); letter-spacing: .4px;
  border-left: 2px solid var(--amber); padding-left: 14px;
  margin-bottom: 42px; line-height: 1.65;
  animation: fadeUp .7s ease .4s both;
}
.cost-line strong { color: var(--hero-text); font-weight: 500; }
.hero-actions {
  display: flex; align-items: center; gap: 14px;
  flex-wrap: wrap;
  margin-top: 36px;
  animation: fadeUp .7s ease .5s both;
}

/* Stat bar: pinned to hero bottom */
.hero-stats {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 2;
  border-top: 1px solid rgba(15,19,24,.12);
  background: rgba(245,243,239,.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
@media (prefers-color-scheme: dark) {
  .hero-stats {
    background: rgba(10,12,16,.90);
    border-top-color: var(--wire);
  }
}
.stat-grid {
  display: grid; grid-template-columns: repeat(4,1fr);
}
.stat-cell {
  padding: 18px 24px;
  border-right: 1px solid var(--wire);
}
.stat-cell:last-child { border-right: none; }
.stat-num {
  font-family: var(--font-display);
  font-size: 30px; letter-spacing: 1px;
  color: var(--amber-text); line-height: 1; margin-bottom: 4px;
}
.stat-label {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 1.1px; text-transform: uppercase;
  color: var(--steel); line-height: 1.45;
}
@media (prefers-color-scheme: dark) {
  .stat-label { color: var(--steel); }
}

/* ── INTERIOR HERO (non-photo pages) ─────────────────────── */
.page-hero {
  padding: 72px 0 62px;
  border-bottom: 1px solid var(--wire);
  position: relative; z-index: 1;
}
.page-hero-kicker {
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px;
}
.kicker-line { width: 30px; height: 1px; background: var(--amber); }
.kicker-text {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 2px; text-transform: uppercase; color: var(--amber-text);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px,5.2vw,66px);
  letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--ink); line-height: 1.0; margin-bottom: 14px;
  min-height: 1em;
  text-wrap: balance;
  text-rendering: optimizeLegibility;
}
.page-hero h1 em { font-style: normal; color: var(--amber-text); }
.page-hero .lead {
  font-size: 17px; line-height: 1.62;
  color: var(--steel-light); max-width: 62ch; font-weight: 300;
}

/* ── SECTIONS ────────────────────────────────────────────── */
.section {
  padding: 82px 0;
  border-top: 1px solid var(--wire);
  position: relative; z-index: 1;
}
.section-kicker {
  display: flex; align-items: center; gap: 12px; margin-bottom: 18px;
}
.kicker-num {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--amber-text); letter-spacing: 1px;
}
.kicker-label {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 2px; text-transform: uppercase; color: var(--steel);
}
.kicker-rule { width: 56px; height: 1px; background: var(--wire-strong); }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px,3.8vw,48px);
  letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink); line-height: 1.02; margin-bottom: 20px;
}
.section-title em { font-style: normal; color: var(--amber-text); }

.section-lede {
  font-size: 16.5px; line-height: 1.74;
  color: var(--steel-light); max-width: 64ch;
  font-weight: 300; margin-bottom: 42px;
}

/* ── GRID UTILITIES ──────────────────────────────────────── */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }

/* ── CARDS ───────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--wire);
  border-radius: var(--r-lg);
  padding: 28px 30px;
  transition: border-color .18s, box-shadow .18s;
}
.card:hover {
  border-color: var(--wire-strong);
  box-shadow: 0 8px 28px rgba(15,19,24,.06);
}
@media (prefers-color-scheme: dark) {
  .card:hover { box-shadow: 0 8px 28px rgba(0,0,0,.28); }
}

.card-eyebrow, .card-kicker {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--amber-text); margin-bottom: 12px;
}
.card h3 {
  font-family: var(--font-body);
  font-size: 15px; font-weight: 600;
  color: var(--ink); margin-bottom: 10px; letter-spacing: -.2px;
}
.card p {
  font-size: 14px; line-height: 1.62; color: var(--steel);
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11.5px;
  font-weight: 600; letter-spacing: 1.3px; text-transform: uppercase;
  color: var(--ink); background: var(--amber);
  padding: 14px 26px; border-radius: var(--r);
  border: 1px solid var(--amber);
  transition: all .15s ease; cursor: pointer; text-decoration: none;
}
.btn-primary:hover {
  opacity: .9; color: var(--ink);
  box-shadow: 0 6px 24px var(--amber-dim);
  transform: translateY(-2px);
}
@media (prefers-color-scheme: dark) {
  .btn-primary { color: var(--bg); }
  .btn-primary:hover { color: var(--bg); }
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: 1.3px; text-transform: uppercase;
  color: var(--steel-light); padding: 14px 22px;
  border-radius: var(--r); border: 1px solid var(--wire-strong);
  transition: all .15s ease; text-decoration: none;
  background: transparent;
}
.btn-secondary:hover {
  color: var(--ink); border-color: var(--amber-text);
  background: var(--amber-glow);
}
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

/* ── NOTICE / CALLOUT ────────────────────────────────────── */
.notice-box {
  background: var(--surface);
  border: 1px solid var(--wire);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-lg);
  padding: 22px 26px;
}
.notice-box p { font-size: 14px; line-height: 1.6; color: var(--steel-light); }
.notice-box strong { color: var(--ink); }
.notice-box p + p { margin-top: 10px; }
.notice-list { margin: 10px 0 0 18px; display: flex; flex-direction: column; gap: 6px; }
.notice-list li { font-size: 14px; line-height: 1.6; color: var(--steel-light); }
.notice-list li strong { color: var(--ink); }
.notice-source { margin-top: 14px; font-size: 11px; line-height: 1.5; color: var(--steel); font-style: italic; opacity: .8; }

/* ── MEDIA BLOCK ─────────────────────────────────────────── */
.media-block {
  border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--wire);
  background: var(--surface-2); margin: 48px 0;
}
.media-block img {
  width: 100%; height: auto; max-height: 520px; object-fit: cover; display: block;
  filter: saturate(.72) brightness(.92);
}
@media (prefers-color-scheme: dark) {
  .media-block img { filter: saturate(.65) brightness(.78); }
}

/* ── PROBLEM GRID ────────────────────────────────────────── */
.problem-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
  background: var(--wire); border: 1px solid var(--wire);
  border-radius: var(--r-lg); overflow: hidden; margin-bottom: 52px;
}
.prob-cell {
  background: var(--surface); padding: 34px 30px;
  position: relative; transition: background .2s ease;
}
.prob-cell:hover { background: var(--surface-2); }
.prob-num {
  font-family: var(--font-mono); font-size: 42px; font-weight: 600;
  color: var(--amber-text); opacity: .10;
  position: absolute; top: 16px; right: 22px; line-height: 1;
}
.prob-icon {
  width: 38px; height: 38px;
  background: var(--amber-dim);
  border: 1px solid rgba(196,122,0,.22);
  border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; font-size: 16px;
}
.prob-title {
  font-size: 15px; font-weight: 600;
  color: var(--ink); margin-bottom: 9px; letter-spacing: -.2px;
}
.prob-body {
  font-size: 14px; line-height: 1.62; color: var(--steel);
}

/* ── BRIDGE ──────────────────────────────────────────────── */
.bridge {
  background: var(--surface);
  border: 1px solid var(--wire-strong);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-lg); padding: 32px 36px;
  display: grid; grid-template-columns: 1fr auto 1fr;
  gap: 28px; align-items: center; margin-bottom: 52px;
}
.bridge-label {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px;
}
.bridge-eng .bridge-label  { color: var(--bridge-accent); }
.bridge-exec .bridge-label { color: var(--amber-text); }
.bridge-items { display: flex; flex-direction: column; gap: 7px; }
.bridge-item {
  font-size: 13.5px; line-height: 1.48;
  color: var(--steel-light); padding: 8px 12px;
  background: var(--amber-glow); border-radius: var(--r);
  font-weight: 300;
}
.bridge-item strong { color: var(--ink); font-weight: 500; }
.bridge-arr { text-align: center; color: var(--amber-text); font-size: 22px; opacity: .7; }

/* ── ARCH CARDS ──────────────────────────────────────────── */
.arch-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 22px; margin-bottom: 48px;
}
.arch-card {
  background: var(--surface); border: 1px solid var(--wire);
  border-radius: var(--r-lg); overflow: hidden;
  transition: border-color .2s, transform .2s;
}
.arch-card:hover { border-color: var(--wire-strong); transform: translateY(-2px); }
.arch-img { height: 200px; overflow: hidden; background: var(--surface-2); position: relative; }
.arch-img img {
  width: 100%; height: 100%; object-fit: cover;
  /* Visible but muted: saturation .7, brightness .85 */
  filter: saturate(.7) brightness(.85);
  transition: filter .4s, transform .4s;
}
.arch-card:hover .arch-img img {
  filter: saturate(.88) brightness(.96); transform: scale(1.03);
}
@media (prefers-color-scheme: dark) {
  .arch-img img { filter: saturate(.6) brightness(.70); }
  .arch-card:hover .arch-img img { filter: saturate(.78) brightness(.82); }
}

.arch-img-tag {
  position: absolute; bottom: 10px; left: 12px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--hero-text); background: rgba(10,12,16,.76);
  padding: 5px 10px; border-radius: var(--r);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(4px);
}
.arch-body { padding: 24px 26px 28px; }
.arch-name {
  font-family: var(--font-display); font-size: 24px;
  letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink); margin-bottom: 8px;
  display: flex; align-items: baseline; gap: 8px;
}
.arch-tm {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--amber-text); letter-spacing: 1px;
}
.arch-desc { font-size: 14px; line-height: 1.62; color: var(--steel); margin-bottom: 16px; }

/* ── INDUSTRY GRID (index summary) ──────────────────────── */
.ind-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 2px;
  background: var(--wire); border: 1px solid var(--wire);
  border-radius: var(--r-lg); overflow: hidden;
}
.ind-cell {
  background: var(--surface); padding: 28px 24px;
  position: relative; overflow: hidden;
  transition: background .2s; cursor: default;
}
.ind-cell::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--amber);
  transform: scaleX(0); transform-origin: left; transition: transform .25s;
}
.ind-cell:hover::before { transform: scaleX(1); }
.ind-cell:hover { background: var(--surface-2); }
.ind-icon { font-size: 24px; margin-bottom: 12px; display: block; }
.ind-name {
  font-size: 14px; font-weight: 600;
  color: var(--ink); margin-bottom: 6px; letter-spacing: -.2px;
}
.ind-desc { font-size: 13px; line-height: 1.55; color: var(--steel); }

/* ── PATENTS STRIP ───────────────────────────────────────── */
.pat-strip {
  background: var(--surface); border: 1px solid var(--wire);
  border-radius: var(--r-lg); padding: 40px 44px;
  display: grid; grid-template-columns: 1fr 280px; gap: 44px;
  align-items: center;
}
.pat-heading {
  font-family: var(--font-display); font-size: 36px;
  letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink); margin-bottom: 10px;
}
.pat-sub { font-size: 15px; line-height: 1.62; color: var(--steel); }
.pat-list { display: flex; flex-direction: column; gap: 8px; }

/* ── PATENT ROW ──────────────────────────────────────────── */
.patent-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  background: var(--surface); border: 1px solid var(--wire);
  border-radius: var(--r); transition: border-color .15s; text-decoration: none;
}
.patent-row:hover { border-color: var(--amber-text); }
.patent-num {
  font-family: var(--font-mono); font-size: 13.5px;
  font-weight: 600; color: var(--ink); letter-spacing: .5px;
}
.patent-type {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .8px; text-transform: uppercase;
  color: var(--steel); margin-top: 3px;
}
.patent-ext { color: var(--amber-text); font-size: 14px; opacity: .7; }

/* ── PROCESS STRIP ───────────────────────────────────────── */
.process-strip {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 0; position: relative; margin: 48px 0;
}
.process-strip::before {
  content: ''; position: absolute;
  top: 26px; left: 12.5%; right: 12.5%; height: 1px;
  background: linear-gradient(90deg, var(--amber) 0%, var(--wire-strong) 100%);
}
.proc-step { text-align: center; padding: 0 18px; position: relative; }
.proc-dot {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--amber);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-family: var(--font-mono); font-size: 11px;
  font-weight: 600; color: var(--amber-text);
}
.proc-step:first-child .proc-dot { background: var(--amber); color: var(--ink); }
.proc-name { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.proc-desc { font-size: 13px; line-height: 1.55; color: var(--steel); }

/* ── DATA TABLE ──────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; margin: 32px 0; }
.data-table th {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--amber-text);
  padding: 10px 16px; text-align: left;
  border-bottom: 1px solid var(--wire-strong);
}
.data-table td {
  padding: 12px 16px; border-bottom: 1px solid var(--wire);
  font-size: 14px; color: var(--steel-light); vertical-align: top;
}
.data-table td:first-child { color: var(--ink); font-weight: 500; }
.data-table tr:hover td { background: var(--amber-glow); }

/* ── SPEC TAGS ───────────────────────────────────────────── */
.spec-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.spec-tag {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .8px; text-transform: uppercase;
  color: var(--steel); background: var(--surface-2);
  border: 1px solid var(--wire); padding: 4px 10px; border-radius: 2px;
}

/* ── FORM ────────────────────────────────────────────────── */
.form-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 22px; }
.form-field label {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--steel-light); font-weight: 500;
}
.form-field input,
.form-field textarea,
.form-field select {
  width: 100%; padding: 13px 16px;
  background: var(--surface); border: 1px solid var(--wire);
  border-radius: var(--r); color: var(--ink);
  font-family: var(--font-body); font-size: 15px;
  transition: border-color .15s, box-shadow .15s;
  outline: none; appearance: none;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--amber-text);
  box-shadow: 0 0 0 3px var(--amber-dim);
}
.form-field textarea { min-height: 140px; resize: vertical; cursor: text;
}
.form-helper {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--steel); letter-spacing: .4px; margin-top: 6px;
}


.form-status-panel {
  margin: 0 0 22px; padding: 16px 18px;
  border: 1px solid rgba(247,168,48,.34);
  background: var(--amber-glow); border-radius: var(--r);
}
.form-status-title {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--amber-text); margin-bottom: 8px;
}
.form-status-panel p {
  margin: 0; font-size: 13px; line-height: 1.65; color: var(--steel-light);
}
.form-status-panel a { color: var(--amber-text); }

/* ── CTA BLOCK ───────────────────────────────────────────── */
.cta-block {
  background: var(--surface); border: 1px solid var(--wire);
  border-radius: var(--r-lg); padding: 56px 48px;
  text-align: center; position: relative; overflow: hidden;
}
.cta-block::before {
  content: 'INERTRA'; position: absolute;
  font-family: var(--font-display); font-size: 180px; letter-spacing: 8px;
  color: var(--ink); opacity: .018;
  top: 50%; left: 50%; transform: translate(-50%,-50%);
  white-space: nowrap; pointer-events: none;
}
.cta-block-kicker {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--amber-text); margin-bottom: 16px;
}
.cta-block h2 {
  font-family: var(--font-display);
  font-size: clamp(34px,5vw,56px);
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--ink); line-height: 1.0; margin-bottom: 14px;
}
.cta-block p {
  font-size: 16px; line-height: 1.65; color: var(--steel-light);
  max-width: 50ch; margin: 0 auto 22px; font-weight: 300;
}
.cta-note {
  margin-top: 20px; font-family: var(--font-mono);
  font-size: 10.5px; color: var(--steel);
  letter-spacing: .4px; line-height: 1.65;
}

/* ── INDUSTRIES PAGE: full-bleed industry panels ────────── */
.ind-hero {
  position: relative; overflow: hidden;
  min-height: 480px; display: flex; align-items: center;
  border-top: 1px solid var(--wire); padding: 72px 0;
}
.ind-hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  /* Brighter: .52 is clearly visible, text still legible */
  filter: brightness(.52) saturate(.62);
  transition: filter .5s ease;
}
.ind-hero:hover .ind-hero-bg {
  filter: brightness(.60) saturate(.70);
}
@media (prefers-color-scheme: dark) {
  .ind-hero-bg { filter: brightness(.36) saturate(.55); }
  .ind-hero:hover .ind-hero-bg { filter: brightness(.44) saturate(.62); }
}

/* Light mode overlay: text side is near-white */
.ind-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    90deg,
    rgba(245,243,239,.92) 0%,
    rgba(245,243,239,.72) 48%,
    rgba(245,243,239,.12) 100%
  );
}
@media (prefers-color-scheme: dark) {
  .ind-hero-overlay {
    background: linear-gradient(
      90deg,
      rgba(10,12,16,.96) 0%,
      rgba(10,12,16,.93) 55%,
      rgba(10,12,16,.50) 80%,
      rgba(10,12,16,.12) 100%
    );
  }
}

.ind-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 260px;
  gap: 48px; align-items: center;
}
.ind-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 2px; text-transform: uppercase; color: var(--amber-text);
  margin-bottom: 16px; border: 1px solid var(--amber-dim);
  padding: 5px 12px; border-radius: 2px; background: var(--amber-glow);
}
.ind-hero h2 {
  font-family: var(--font-display);
  font-size: clamp(32px,5.5vw,62px);
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--ink); line-height: .97; margin-bottom: 16px;
}
.ind-hero h2 em { font-style: normal; color: var(--amber-text); }
.ind-hero p {
  font-size: 16px; line-height: 1.68;
  color: var(--steel-light); max-width: 56ch;
  margin-bottom: 12px; font-weight: 300;
}
.ind-cost {
  font-family: var(--font-mono); font-size: 12px; color: var(--steel);
  border-left: 2px solid var(--amber); padding: 8px 14px;
  margin: 16px 0; line-height: 1.68;
  background: var(--amber-glow); border-radius: 0 2px 2px 0;
}
.ind-cost strong { color: var(--ink); }
.stat-stack { display: grid; gap: 10px; }
.sb {
  background: var(--surface); border: 1px solid var(--wire);
  border-radius: var(--r-lg); padding: 18px 16px;
}
.sb-num {
  font-family: var(--font-display); font-size: 28px;
  line-height: 1; color: var(--amber-text); margin-bottom: 6px;
}
.sb-lbl {
  font-family: var(--font-mono); font-size: 10px;
  line-height: 1.5; letter-spacing: 1px;
  text-transform: uppercase; color: var(--steel);
}

/* ── FOOTER ──────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--wire);
  padding: 48px 0; position: relative; z-index: 1;
}


.inq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 52px;
  align-items: flex-start;
}
.inq-sticky {
  position: sticky;
  top: 80px;
}
.footer-brand-link {
  display: inline-flex;
  align-items: flex-start;
  color: inherit;
  text-decoration: none;
  flex-shrink: 0;
}


.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start; gap: 40px;
}
.footer-brand-col {
  display: flex; align-items: flex-start; gap: 14px;
}
.footer-logo {
  width: 28px; height: 28px; flex-shrink: 0; margin-top: 2px;
  color: var(--ink);
}
/* Override SVG presentation attribute: ensures fill responds to CSS color on iOS Safari */
.footer-logo path,
.footer-logo g { fill: currentColor; }
.footer-brand-text {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--steel); line-height: 1.7;
}
.footer-brand-text strong {
  display: block; font-family: var(--font-display);
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--ink); font-size: 14px; margin-bottom: 4px;
}
.footer-nav {
  display: flex; flex-wrap: wrap; gap: 4px 2px;
  justify-content: center; align-items: flex-start;
  padding-top: 2px;
}
.footer-nav a {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .9px; text-transform: uppercase;
  color: var(--steel); padding: 5px 11px;
  border-radius: var(--r); transition: color .15s;
}
.footer-nav a:hover { color: var(--amber-text); }
.footer-col-right { text-align: right; }
.footer-pdfs { margin-bottom: 16px; }
.footer-pdfs-label {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--amber-text); margin-bottom: 8px;
}
.footer-pdfs a {
  display: block; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--steel); letter-spacing: .6px;
  padding: 3px 0; transition: color .15s;
}
.footer-pdfs a:hover { color: var(--amber-text); }
.footer-legal {
  display: flex; gap: 16px; justify-content: flex-end;
}
.footer-legal a {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .8px; text-transform: uppercase;
  color: var(--steel); transition: color .15s;
}
.footer-legal a:hover { color: var(--ink); }

/* ── BACK TO TOP ─────────────────────────────────────────── */
#backToTop {
  position: fixed; bottom: 26px; right: 26px;
  width: 40px; height: 40px;
  border-radius: var(--r); border: 1px solid var(--wire-strong);
  background: var(--surface); color: var(--steel);
  font-size: 16px; cursor: pointer;
  opacity: 0; pointer-events: none;
  transition: all .25s ease; z-index: 200;
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
}
#backToTop.show { opacity: 1; pointer-events: auto; }
#backToTop:hover {
  color: var(--amber-text); border-color: var(--amber-text);
  transform: translateY(-2px);
}

/* ── REVEAL ANIMATIONS ───────────────────────────────────── */
.js .reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity .55s ease, transform .55s ease;
}
.js .reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .1s; }
.delay-2 { transition-delay: .2s; }
.delay-3 { transition-delay: .3s; }
.delay-4 { transition-delay: .4s; }



/* ── VERTICAL RHYTHM REFINEMENTS ────────────────────────── */
.section-kicker { margin-bottom: 22px; }
.section-title { margin-bottom: 24px; }
.section-lede { margin-bottom: 56px; }
.page-hero .lead { margin-bottom: 0; }
.media-block { margin: 56px 0; }
.notice-box { margin-top: 28px; }
.notice-box + .btn-group,
.notice-box + .grid2,
.notice-box + .grid3,
.notice-box + .arch-grid,
.notice-box + .problem-grid,
.notice-box + .ind-grid,
.notice-box + .pat-strip,
.notice-box + .table-wrap,
.notice-box + .cta-block { margin-top: 32px; }
.section-lede + .btn-group,
.section-lede + .grid2,
.section-lede + .grid3,
.section-lede + .arch-grid,
.section-lede + .problem-grid,
.section-lede + .ind-grid,
.section-lede + .pat-strip,
.section-lede + .table-wrap,
.section-lede + .checklist { margin-top: 36px; }
.section-lede + .media-block { margin-top: 16px; }
p.reveal + .btn-group,
p.section-note + .btn-group,
p + .btn-group { margin-top: 28px; }
.btn-group + .notice-box,
.btn-group + .section-note,
.btn-group + .auth-cta-divider { margin-top: 36px; }
.btn-group.btn-group-center { margin-top: 34px; justify-content: center; }
.grid2 + .notice-box,
.grid3 + .notice-box,
.arch-grid + .notice-box,
.problem-grid + .notice-box,
.pat-strip + .notice-box { margin-top: 40px; }
.section .card,
.section .patent-row,
.section .ind-cell,
.section .arch-card { height: 100%; }
@media (max-width: 900px) {
  .section-lede { margin-bottom: 44px; }
  .notice-box + .btn-group,
  .notice-box + .grid2,
  .notice-box + .grid3,
  .notice-box + .arch-grid,
  .notice-box + .problem-grid,
  .notice-box + .ind-grid,
  .notice-box + .pat-strip,
  .notice-box + .table-wrap,
  .notice-box + .cta-block,
  .section-lede + .btn-group,
  .section-lede + .grid2,
  .section-lede + .grid3,
  .section-lede + .arch-grid,
  .section-lede + .problem-grid,
  .section-lede + .ind-grid,
  .section-lede + .pat-strip,
  .section-lede + .table-wrap,
  .section-lede + .checklist,
  p.reveal + .btn-group,
  p.section-note + .btn-group,
  p + .btn-group,
  .btn-group + .notice-box,
  .btn-group + .section-note,
  .btn-group + .auth-cta-divider { margin-top: 24px; }
}

/* ── RESPONSIVE ──────────────────────────────────────────── */

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .bridge { grid-template-columns: 1fr; }
  .bridge-arr { transform: rotate(90deg); width: fit-content; margin: 0 auto; }
  .ind-grid { grid-template-columns: repeat(2,1fr); }
  .pat-strip { grid-template-columns: 1fr; }
  .process-strip { grid-template-columns: 1fr 1fr; gap: 28px; }
  .process-strip::before { display: none; }
  .section { padding: 60px 0; }
  .page-hero { padding: 54px 0 50px; }
  .stat-grid { grid-template-columns: repeat(2,1fr); }
  .hero-content { padding: 72px 0 160px; }
  /* footer layout handled at 980px breakpoint */
  .inq-grid { grid-template-columns: 1fr; }
  .inq-sticky { position: static; }
}
@media (max-width: 600px) {
  .footer-nav { justify-content: flex-start; }
  .process-strip { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .ind-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}

/* ── PRINT ───────────────────────────────────────────────── */

img[loading="lazy"] { content-visibility: auto; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-bg, .eyebrow, .hero h1, .hero-lead, .cost-line, .hero-actions {
    animation: none !important;
    transform: none !important;
  }
}


/* ── FORM CONFIRMATION PANEL ────────────────────────────── */
.form-confirmation-panel {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid var(--wire-strong);
  border-radius: var(--r-lg);
  background: var(--surface);
}
@media print {
  header, footer, #backToTop { display: none; }
  .section { break-inside: avoid; }
}


/* March 2026 content + clarity refinements */
.proof-strip { margin-top: 28px; display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.proof-card { background: rgba(10,12,18,.52); border: 1px solid rgba(245,241,232,.18); border-radius: 18px; padding: 18px 18px 16px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.proof-card .proof-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--amber-text); margin-bottom: 10px; }
.proof-card p { margin: 0; font-size: 13px; line-height: 1.65; color: var(--hero-sub); }
.table-wrap { border: 1px solid var(--wire); border-radius: 18px; overflow: hidden; background: rgba(255,255,255,.02); }
.table-scroll { overflow-x: auto; }
.matrix-table { width: 100%; border-collapse: collapse; min-width: 780px; }
.matrix-table th, .matrix-table td { padding: 16px 18px; border-bottom: 1px solid var(--wire); text-align: left; vertical-align: top; }
.matrix-table th { font-family: var(--font-mono); font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--amber-text); background: rgba(255,255,255,.03); }
.matrix-table td { font-size: 14px; line-height: 1.6; color: var(--steel-light); }
.matrix-table tr:last-child td { border-bottom: 0; }
.matrix-table strong { color: var(--ink); font-weight: 600; }
.checklist { display: grid; gap: 12px; margin-top: 18px; }
.check-item { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; font-size: 14px; line-height: 1.6; color: var(--steel-light); }
.check-item strong { color: var(--ink); }
.check-icon { width: 22px; height: 22px; border-radius: 999px; border: 1px solid rgba(247,168,48,.35); display: inline-flex; align-items: center; justify-content: center; color: var(--amber-text); font-size: 11px; margin-top: 1px; }
.section-note { margin-top: 18px; font-size: 14px; line-height: 1.65; color: var(--steel); max-width: 76ch; }
@media (max-width: 980px) {
  .ind-inner { grid-template-columns: minmax(0,1fr); }
  .stat-stack { grid-template-columns: repeat(auto-fit,minmax(150px,1fr)); }
  .footer-inner { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
  .footer-col-right { grid-column: 1 / -1; text-align: left; }
  .footer-legal { justify-content: flex-start; }
  .proof-strip { grid-template-columns: 1fr; }
}

/* ── PATENT CARDS ─────────────────────────────────────────── */
.patent-row.patent-row-body {
  padding: 22px 24px;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.patent-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.patent-num { font-size: 18px; }
.patent-ext { font-size: 16px; }
.patent-family-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--amber-text);
}
.patent-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.patent-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--steel);
  max-width: 72ch;
}
/* ── INQUIRY PAGE ─────────────────────────────────────────── */
.inq-form-full { max-width: 100%; }
.form-hint {
  opacity: .5;
  font-size: 10px;
  letter-spacing: .5px;
}
.inq-submit-wrap { margin-top: 28px; }
.btn-primary-full {
  width: 100%;
  justify-content: center;
  font-size: 13px;
  padding: 16px;
}
.inq-divider {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--wire);
}
.btn-sm { font-size: 11px; padding: 11px 20px; }
.inq-option-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.btn-xs { font-size: 10.5px; padding: 10px 16px; }

/* ── SPACING UTILITIES ────────────────────────────────────── */
.mb-0  { margin-bottom: 0; }
.mb-8  { margin-bottom: 8px; }
.mb-48 { margin-bottom: 48px; }
.mb-64 { margin-bottom: 64px; }
.pb-48 { padding-bottom: 48px; }
.pb-88 { padding-bottom: 88px; }
.flex-col-gap-16 { display: flex; flex-direction: column; gap: 16px; }
.section-kicker-tight { margin-bottom: 8px; }
.mb-28 { margin-bottom: 28px; }

/* ── UTILITY SPACING ──────────────────────────────────────── */
.mb-18 { margin-bottom: 18px; }
.w-full { max-width: 100%; }

.inq-intro {
  font-size: 15px;
  line-height: 1.65;
  color: var(--steel-light);
  margin-bottom: 32px;
  font-weight: 400;
}
.form-helper-text {
  margin-top: 14px;
  text-align: center;
}
.text-amber { color: var(--amber-text); }
.inq-contact-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
  margin-bottom: 12px;
  letter-spacing: 1.3px;
  text-transform: uppercase;
}

/* ── AUTHORITY CTA FOOTER ─────────────────────────────────── */
.auth-cta-divider {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--wire);
}
.auth-env-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 16px;
}
.auth-env-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn-tag {
  font-size: 11px;
  padding: 9px 16px;
}
.mb-40 { margin-bottom: 40px; }
/* ── SKIP LINK (accessibility) ───────────────────────────── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 12px 20px;
  background: var(--amber);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  z-index: 9999;
  border-radius: 0 0 var(--r) 0;
  transition: top .15s ease;
}
.skip-link:focus {
  top: 0;
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

/* ── ADDITIONAL LAYOUT UTILITIES ─────────────────────────── */
.mt-8  { margin-top: 8px; }
.mt-22 { margin-top: 22px; }
.mt-28 { margin-top: 28px; }
.mt-32 { margin-top: 32px; }
.mt-36 { margin-top: 36px; }
.mt-48 { margin-top: 48px; }
.mt-52 { margin-top: 52px; }
.mb-56 { margin-bottom: 56px; }
.mt-n8-mb-48 { margin-top: -8px; margin-bottom: 48px; }
.mt-8-mb-48  { margin-top: 8px; margin-bottom: 48px; }
.text-center { text-align: center; }
.text-center-mt-52 { margin-top: 52px; text-align: center; }
.d-block { display: block; }
.d-inline-flex-mt-8 { display: inline-flex; margin-top: 8px; }
.mw-420 { max-width: 420px; }
.mb-32 { margin-bottom: 32px; }
.pb-40 { padding-bottom: 40px; }
.pt-0  { padding-top: 0; }

/* ── SCREEN READER ONLY (accessibility) ──────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── SECTION VARIANTS ────────────────────────────────────── */
.section-flow-consequence { /* flow.html: no additional styling needed */ }

/* ── TECHNICAL REFERENCES PAGE ────────────────────────────── */
.ref-card-link {
  text-decoration: none;
  display: block;
}
.ref-card-label {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber-text);
}

/* ── LEGAL/404 UTILITIES ──────────────────────────────────── */
.legal-content {
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 72ch;
}
.legal-meta {
  font-size: 0.9rem;
  color: var(--steel);
  margin-top: 4px;
  margin-bottom: 0;
}
.text-amber-link { color: var(--amber-text); text-decoration: underline; }
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 60px 0;
  position: relative;
  z-index: 1;
}
.error-num {
  font-family: var(--font-display);
  font-size: 120px;
  letter-spacing: 4px;
  opacity: .15;
  line-height: 1;
  margin-bottom: 24px;
}
.error-title {
  font-family: var(--font-display);
  color: var(--ink);
  margin-bottom: 16px;
}
.error-body {
  font-size: 17px;
  color: var(--steel-light);
  max-width: 44ch;
  margin: 0 auto 36px;
  font-weight: 300;
}


/* ── ENGINEERING BASIS ───────────────────────────────────── */
.section-engineering-basis { padding-top: 76px; }
.engflow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 16px;
  align-items: stretch;
  margin-top: 34px;
}
.engflow-card, .schematic-panel, .patent-band, .env-panel {
  background: var(--surface);
  border: 1px solid var(--wire);
  border-radius: var(--r-lg);
  box-shadow: 0 10px 28px rgba(15,19,24,.04);
}
.engflow-card { padding: 26px 24px 24px; }
.engflow-label, .patent-band-label, .schematic-heading {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--amber-text);
  margin-bottom: 10px;
}
.engflow-card h3 {
  font-size: 22px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.engflow-list { list-style: none; display: grid; gap: 10px; }
.engflow-list li {
  color: var(--steel-light);
  padding-left: 14px;
  position: relative;
}
.engflow-list li::before {
  content: '';
  position: absolute;
  left: 0; top: .62em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--amber);
}
.engflow-arrow {
  align-self: center;
  color: var(--amber-text);
  font-size: 28px;
  font-weight: 700;
}
.schematic-panel { margin-top: 20px; padding: 24px; }
.schematic-rail {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1.1fr auto 1fr;
  gap: 12px;
  align-items: stretch;
  margin-top: 8px;
}
.schematic-stage { display: grid; gap: 8px; }
.schematic-stage-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--steel);
}
.schematic-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber-text);
  font-size: 26px;
  font-weight: 700;
}
.schematic-node {
  min-height: 108px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 18px 14px;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--wire);
  border-radius: var(--r);
  font-weight: 500;
  line-height: 1.45;
}
.schematic-stage-accent .schematic-stage-label { color: var(--amber-text); }
.schematic-node-accent {
  background: linear-gradient(180deg, rgba(232,120,0,.10), var(--surface));
  border-color: rgba(232,120,0,.32);
  box-shadow: inset 0 0 0 1px rgba(232,120,0,.08);
}
.env-panel {
  margin-top: 18px;
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.env-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.env-chip {
  padding: 13px 14px;
  border: 1px solid var(--wire);
  border-radius: var(--r);
  background: var(--surface-2);
  color: var(--steel-light);
  font-size: 14px;
  line-height: 1.45;
}
.schematic-caption, .patent-band-copy { color: var(--steel); margin-top: 12px; line-height: 1.65; }
.patent-band {
  margin-top: 18px;
  padding: 20px 22px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
  align-items: center;
}
.patent-band-list {
  display: grid;
  gap: 10px;
}
.patent-band-list span {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .5px;
  padding: 12px 14px;
  border: 1px solid var(--wire);
  background: var(--surface-2);
  border-radius: var(--r);
}
@media (max-width: 1080px) {
  .engflow { grid-template-columns: 1fr; }
  .engflow-arrow { display: none; }
  .schematic-rail { grid-template-columns: 1fr; }
  .schematic-connector { display: none; }
  .env-grid { grid-template-columns: repeat(2, 1fr); }
  .patent-band { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .env-grid { grid-template-columns: 1fr; }
  .engflow-card h3 { font-size: 20px; }
}
.btn-group-center { justify-content: center; }
.arch-grid-single { grid-template-columns: 1fr; max-width: 620px; }
a.card { text-decoration: none; }


/* ── Cost Strip Component ── */
.cost-strip{display:flex;align-items:stretch;gap:0;border-radius:6px;overflow:hidden;margin:1.5rem 0 0}
.cost-strip-item{flex:1;padding:1.1rem 1.4rem;display:flex;flex-direction:column;gap:0.25rem}
.cost-strip-figure{font-size:1.4rem;font-weight:700;letter-spacing:-0.02em;line-height:1}
.cost-strip-label{font-size:0.78rem;line-height:1.4;display:flex;flex-direction:column;gap:0.15rem}
.cost-strip-context{font-size:0.7rem;font-style:italic;opacity:0.8}
.cost-strip-divider{width:1px;margin:0.75rem 0;flex-shrink:0}

/* Dark bg variant (hero/dark sections) */
.hero .cost-strip,.cost-strip-hero{background:rgba(0,0,0,0.28);border:1px solid rgba(255,255,255,0.12)}
.hero .cost-strip-figure,.cost-strip-hero .cost-strip-figure{color:var(--amber-text)}
.hero .cost-strip-label,.cost-strip-hero .cost-strip-label{color:rgba(255,255,255,0.82)}
.hero .cost-strip-context,.cost-strip-hero .cost-strip-context{color:rgba(255,255,255,0.58)}
.hero .cost-strip-divider,.cost-strip-hero .cost-strip-divider{background:rgba(255,255,255,0.12)}

/* Light bg variant (body sections) */
.cost-strip-dark{background:var(--surface-2);border:1px solid var(--wire)}
.cost-strip-dark .cost-strip-figure{color:var(--amber-text)}
.cost-strip-dark .cost-strip-label{color:var(--steel-light)}
.cost-strip-dark .cost-strip-context{color:var(--steel)}
.cost-strip-dark .cost-strip-divider{background:var(--wire)}

@media(max-width:640px){
  .cost-strip{flex-direction:column}
  .cost-strip-divider{width:100%;height:1px;margin:0}
}

/* ── Authority Page Cost Note ── */
/* ── STANDALONE COST NOTE (authority pages, retention, etc.) ── */
.authority-cost-note{background:var(--surface-2);border-left:3px solid var(--amber);padding:1rem 1.25rem;margin:1.25rem 0;border-radius:0 4px 4px 0}
.cost-note-label{font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--amber-text);margin-bottom:0.4rem}
.cost-note-body{font-size:0.9rem;line-height:1.6;color:var(--steel-light);margin:0}

/* ── CTA BLOCK: evidence-rail hierarchy ───────────────────── */
/* One read path: kicker → H2 → support line → evidence rail → CTA. */
/* Single dominant visual event. Evidence is subordinate.            */

.cta-block { padding: 46px 40px 40px; }
.cta-block .cta-block-kicker { margin-bottom: 10px; }
.cta-block h2 { margin-bottom: 10px; }
.cta-block > p {
  font-size: 15px;
  line-height: 1.6;
  max-width: 48ch;
  margin: 0 auto;
  font-weight: 300;
}

/* Evidence rail: visible but subordinate, not a panel */
.cta-block .evidence-rail {
  width: min(100%, 760px);
  margin: 18px auto 0;
  padding: 12px 0 12px 18px;
  border-left: 2px solid var(--amber-dim);
  text-align: left;
}
.cta-block .evidence-rail-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 4px 0;
  max-width: none;
  text-align: left;
}
.cta-block .evidence-rail-body {
  font-size: 0.87rem;
  line-height: 1.55;
  color: var(--steel);
  font-weight: 400;
  margin: 0;
  max-width: none;
  text-align: left;
}
.cta-block .evidence-rail + .btn-group {
  width: min(100%, 760px);
  margin: 20px auto 0;
}

@media (max-width: 900px) {
  .cta-block { padding: 40px 24px 36px; }
  .cta-block .evidence-rail { width: 100%; padding: 12px 0 12px 16px; }
  .cta-block .evidence-rail + .btn-group { width: 100%; }
}




/* ── FLOW PAGE PARITY LIFT ─────────────────────────────── */
.flow-logic-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 24px;
  align-items: stretch;
}
.flow-sequence {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.flow-step {
  background: var(--surface);
  border: 1px solid var(--wire);
  border-radius: var(--r-lg);
  padding: 22px 20px 20px;
  min-height: 100%;
}
.flow-step-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--amber-text);
  margin-bottom: 10px;
}
.flow-step h3 {
  font-size: 20px;
  line-height: 1.25;
  margin-bottom: 10px;
}
.flow-callout {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--wire);
  border-radius: var(--r-lg);
  padding: 24px 24px 22px;
}
.flow-callout h3 {
  font-size: 22px;
  line-height: 1.2;
  margin-bottom: 12px;
}
.flow-callout p + p { margin-top: 12px; }
.flow-checklist {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.flow-checkitem {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--steel-light);
}
.flow-checkitem strong { color: var(--ink); font-weight: 500; }
.flow-checkicon {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid var(--amber);
  color: var(--amber-text);
  font-family: var(--font-mono);
  font-size: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  margin-top: 2px;
}
@media (max-width: 980px) {
  .flow-logic-grid,
  .flow-sequence {
    grid-template-columns: 1fr;
  }
}

/* ──────────────────────────────────────────────────────────
   ECONOMICS PAGE: ROI calculator + follow-up form
   Migrated from inline <style> in economics.html (v15→v16)
   ────────────────────────────────────────────────────────── */
/* =====================================================================
   Calculator component: page-scoped to economics.html
   Uses existing site tokens (--bg, --ink, --amber, --wire, etc.)
   Dark mode inherited automatically via site's prefers-color-scheme.
   ===================================================================== */

.econ-calc {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 8px;
}
@media (min-width: 900px) {
  .econ-calc {
    grid-template-columns: 1.05fr 1fr;
    gap: 56px;
    align-items: start;
  }
}

.econ-col-title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--steel);
  font-weight: 500;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--wire-strong);
}

/* ── Inputs column ───────────────────────────────────────── */

.econ-inputs .form-field { margin-bottom: 26px; }
.econ-inputs .form-helper-tight {
  margin-top: 8px;
  font-size: 12px;
  color: var(--steel);
  font-style: italic;
}
.econ-inputs .form-helper-tight em {
  font-style: italic;
  color: var(--ink);
  font-weight: 500;
}

.econ-input-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.econ-input-row input[type="number"] {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.01em;
}
/* hide native spinner */
.econ-input-row input[type="number"]::-webkit-outer-spin-button,
.econ-input-row input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none; margin: 0;
}
.econ-input-row input[type="number"] { -moz-appearance: textfield; }

.econ-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--steel);
  white-space: nowrap;
  min-width: 84px;
  text-align: right;
}

/* ── Slider ──────────────────────────────────────────────── */

.econ-slider-readout {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 10px 0 6px;
}
.econ-slider-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.econ-slider-bounds {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--steel);
}

input[type="range"]#econ-eff {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 26px;
  background: transparent;
  cursor: pointer;
  margin: 0;
  padding: 0;
}
input[type="range"]#econ-eff::-webkit-slider-runnable-track {
  height: 2px;
  background: var(--wire-strong);
  border: none;
}
input[type="range"]#econ-eff::-moz-range-track {
  height: 2px;
  background: var(--wire-strong);
  border: none;
}
input[type="range"]#econ-eff::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--amber);
  border: 2px solid var(--amber);
  border-radius: 50%;
  margin-top: -8px;
  cursor: grab;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
input[type="range"]#econ-eff::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--amber);
  border: 2px solid var(--amber);
  border-radius: 50%;
  cursor: grab;
}
input[type="range"]#econ-eff:hover::-webkit-slider-thumb {
  box-shadow: 0 0 0 6px var(--amber-dim);
}
input[type="range"]#econ-eff:focus { outline: none; }
input[type="range"]#econ-eff:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 6px var(--amber-dim);
}
input[type="range"]#econ-eff:focus::-moz-range-thumb {
  box-shadow: 0 0 0 6px var(--amber-dim);
}
input[type="range"]#econ-eff:active::-webkit-slider-thumb { cursor: grabbing; }
input[type="range"]#econ-eff:active::-moz-range-thumb { cursor: grabbing; }

/* ── Outputs column ──────────────────────────────────────── */

.econ-outputs {
  background: var(--surface);
  border: 1px solid var(--wire);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
@media (min-width: 900px) {
  .econ-outputs {
    position: sticky;
    top: 96px;
  }
}

.econ-out-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--wire);
}
.econ-out-row:last-of-type { border-bottom: none; padding-bottom: 0; }

.econ-out-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--steel);
}
.econ-out-value {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}
.econ-out-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.4px;
  color: var(--steel);
  margin-top: 2px;
}

/* Hero savings panel: single amber moment */
.econ-out-hero {
  background: var(--surface-2);
  border-left: 3px solid var(--amber);
  padding: 22px 22px 22px 19px;
  margin: 0 -32px;
  border-bottom: none;
  padding-bottom: 22px;
}
.econ-out-hero .econ-out-label {
  color: var(--amber-text);
  font-weight: 600;
}
.econ-out-hero .econ-out-value {
  font-size: 38px;
  line-height: 1.1;
}

/* CTA stack inside output panel */
.econ-cta-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
  padding-top: 24px;
  border-top: 1px solid var(--wire);
}
.econ-cta-stack .btn-primary,
.econ-cta-stack .btn-secondary {
  justify-content: space-between;
  text-align: left;
}

/* ── Methodology formula chip ───────────────────────────── */

.econ-formula {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink);
  background: var(--surface-2);
  border: 1px solid var(--wire);
  border-radius: var(--r);
  padding: 4px 10px;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

/* ── Update-pulse animation ──────────────────────────────── */

@keyframes econPulse {
  0%   { background-color: var(--amber-glow); }
  100% { background-color: transparent; }
}
.econ-out-value.is-updating {
  animation: econPulse 0.5s ease-out;
  display: inline-block;
  padding: 2px 4px;
  margin: -2px -4px;
  border-radius: 2px;
}

/* ── Optional license-fee field hint ─────────────────────── */
/* Scoped to economics calculator forms; overrides global .form-hint on this page only */
.econ-inputs .form-hint,
.econ-followup-form .form-hint {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-left: 6px;
}

/* ── Action row (reset / share) ──────────────────────────── */
.econ-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 4px;
  padding-top: 18px;
  border-top: 1px dashed var(--wire);
}
.econ-link-btn {
  appearance: none;
  background: transparent;
  border: none;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel-light);
  cursor: pointer;
  transition: color 0.15s ease;
}
.econ-link-btn:hover,
.econ-link-btn:focus-visible {
  color: var(--amber-text);
  outline: none;
}

/* ── Net-ROI row tag ─────────────────────────────────────── */
.econ-out-tag {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-left: 6px;
  padding: 2px 6px;
  border: 1px solid var(--wire);
  border-radius: 2px;
  white-space: nowrap;
}

/* ── Toast (copy confirmation) ───────────────────────────── */
.econ-toast {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  border-radius: 3px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}
.econ-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Soft-gate follow-up form ────────────────────────────── */
.econ-followup-form { margin-top: 12px; }
.econ-followup-form .form-field { margin-bottom: 18px; }
.econ-followup-form input[type="text"],
.econ-followup-form input[type="email"] {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--wire);
  border-radius: 0;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.12s ease;
}
.econ-followup-form input[type="text"]:focus,
.econ-followup-form input[type="email"]:focus {
  border-color: var(--amber);
  box-shadow: inset 0 0 0 1px var(--amber);
}
.econ-followup-form input[type="email"]:invalid:not(:placeholder-shown) {
  border-color: #b8312a;
}

.econ-followup-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 10px;
}

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .econ-out-value.is-updating { animation: none; }
  .econ-toast { transition: none; }
}

/* ── Print styles ────────────────────────────────────────── */
@media print {
  /* Switch to flowing layout: no sticky panels */
  .econ-calc { display: block !important; }
  .econ-outputs {
    position: static !important;
    page-break-inside: avoid;
    border: 1px solid #999 !important;
    background: #fff !important;
    margin-top: 24pt;
  }
  .econ-out-hero {
    background: #fff !important;
    border-left: 3px solid #000 !important;
    margin: 0 !important;
    padding: 16pt !important;
  }
  .econ-out-hero .econ-out-label,
  .econ-out-tag,
  .form-hint { color: #000 !important; }
  .econ-cta-stack,
  .econ-actions,
  .econ-toast { display: none !important; }
  .econ-out-value { font-size: 22pt !important; }
  .econ-formula {
    background: #f0f0f0 !important;
    border: 1px solid #999 !important;
  }
  /* Hide chrome */
  header, footer, .page-hero { display: none !important; }
  body, main { background: #fff !important; color: #000 !important; }
  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
    color: #555;
  }
  a[href^="#"]::after,
  a[href^="javascript:"]::after { content: ""; }
}



/* ============================================================
   v30 ADDITIONS: patent elevation, failure-sequence SVG,
   comparison table, evaluation checklist, inventor band
   ============================================================ */
.stat-patents { display:block; margin-top:8px; font-family:var(--font-mono); font-size:10.5px; letter-spacing:.5px; color:var(--steel); line-height:1.6; }

.failseq { margin: 6px 0 56px; }
.failseq-desktop { display:block; width:100%; height:auto; }
.failseq-mobile { display:none; width:100%; height:auto; max-width:420px; margin:0 auto; }
@media (max-width:720px){ .failseq-desktop{display:none;} .failseq-mobile{display:block;} }
.fs-t { font-family:var(--font-mono); font-weight:600; }
.fs-s { font-family:var(--font-mono); font-weight:400; }
.fs-d { font-family:var(--font-display); letter-spacing:1.5px; }

.cmp-heading { font-family:var(--font-display); font-size:26px; letter-spacing:1px; color:var(--ink); margin:48px 0 6px; }
.cmp-wrap { overflow-x:auto; margin-top:18px; -webkit-overflow-scrolling:touch; }
.cmp-table { width:100%; min-width:620px; border-collapse:collapse; font-size:14.5px; }
.cmp-table th { font-family:var(--font-mono); font-size:11px; letter-spacing:1.2px; text-transform:uppercase; color:var(--steel); text-align:left; padding:12px 14px; border-bottom:2px solid var(--wire-strong); }
.cmp-table td { padding:13px 14px; border-bottom:1px solid var(--wire); color:var(--steel-light); vertical-align:top; }
.cmp-table td:first-child { font-weight:600; color:var(--ink); white-space:nowrap; }
.cmp-row-inertra td { background:var(--amber-glow); color:var(--ink); border-top:1px solid var(--amber); border-bottom:1px solid var(--amber); }
.cmp-row-inertra td:first-child { color:var(--amber-text); }
.cmp-note { margin-top:10px; font-family:var(--font-mono); font-size:11px; color:var(--steel); }

.eval-check { border:1px solid var(--wire-strong); border-left:3px solid var(--amber); border-radius:var(--r); background:var(--surface); padding:26px 28px; margin:8px 0 32px; }
.eval-check-title { font-family:var(--font-mono); font-size:12px; letter-spacing:1.5px; text-transform:uppercase; color:var(--steel); margin-bottom:14px; }
.eval-check ul { list-style:none; display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:10px 28px; margin:0; padding:0; }
.eval-check li { position:relative; padding-left:22px; color:var(--steel-light); font-size:15px; }
.eval-check li::before { content:"▸"; position:absolute; left:0; color:var(--amber); }

.inventor-band { border-top:1px solid var(--wire); border-bottom:1px solid var(--wire); background:var(--surface-2); }
.inventor-inner { display:grid; grid-template-columns:1fr 1fr; gap:36px; padding:46px 0; }
.inv-role { font-family:var(--font-mono); font-size:11px; letter-spacing:1.5px; text-transform:uppercase; color:var(--amber-text); margin-bottom:8px; }
.inv-name { font-family:var(--font-display); font-size:27px; letter-spacing:1px; color:var(--ink); margin-bottom:6px; }
.inventor-cell p { color:var(--steel); font-size:14.5px; max-width:48ch; }
.inventor-tag { grid-column:1 / -1; font-family:var(--font-mono); font-size:11.5px; color:var(--steel); border-top:1px solid var(--wire); padding-top:16px; }
@media (max-width:720px){ .inventor-inner { grid-template-columns:1fr; gap:28px; } }

.cost-strip-source { margin-top:10px; font-family:var(--font-mono); font-size:11px; line-height:1.55; color:var(--hero-sub); }
.cost-strip-source a { color:var(--amber); text-decoration:underline; text-underline-offset:2px; }
.cost-strip-source a:hover { text-decoration:underline; }

/* v31: diagram, citations, sources */
.diagram-panel { margin: 8px 0 44px; }
.diagram-svg { width:100%; height:auto; }
.notice-cite { display:block; margin-top:2px; font-family:var(--font-mono); font-size:11px; color:var(--steel); }
.source-list { margin: 14px 0 0; padding:0; list-style:none; display:flex; flex-direction:column; gap:12px; }
.source-list li { font-size:13px; line-height:1.6; color:var(--steel-light); }
.source-list a { color:var(--amber-text); word-break:break-word; }
.footer-person { display:block; }
.footer-tm { display:block; margin-top:4px; font-size:10px; line-height:1.5; opacity:.85; }