/* ============================================================
   NOANE.IO · GLOBAL STYLESHEET
   Sections: 1.Tokens 2.Reset 3.Base 4.Layout 5.Typography
             6.Navigation 7.Environment 8.Buttons 9.Cards
             10.Page Sections 11.Diagrams 12.Forms 13.Footer
             14.Motion 15.Responsive 16.Reduced Motion
   ============================================================ */

/* ============================================================
   1. TOKENS
   ============================================================ */
:root {
  /* Brand Colors */
  --vault-charcoal:  #15191F;
  --vault-deep:      #0E1216;
  --signal-teal:     #2DD4BF;
  --pulse-cyan:      #22D3EE;
  --orbit-amber:     #F5A623;
  --pure-white:      #FFFFFF;
  --steel-mist:      #8B95A5;
  --classic-white:   #F2EDE9;

  /* Surfaces */
  --surface-0:  var(--vault-charcoal);
  --surface-1:  #1a1f27;
  --surface-2:  #1e242d;
  --surface-3:  #232930;
  --border:          rgba(255,255,255,0.10);
  --border-accent:   rgba(45,212,191,0.28);
  --border-strong:   rgba(255,255,255,0.16);

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body:    'DM Sans', 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  /* Spacing — 8px base */
  --sp-1: 8px;  --sp-2: 16px; --sp-3: 24px;
  --sp-4: 32px; --sp-5: 40px; --sp-6: 48px; --sp-8: 64px;
  --sp-10: 80px; --sp-12: 96px; --sp-16: 128px; --sp-24: 192px;

  /* Layout */
  --container-max:  1280px;
  --nav-height:     72px;
  --section-pad:    clamp(72px, 9vh, 128px);

  /* Radii */
  --r-sm:   4px;   --r-md: 8px;
  --r-lg:   12px;  --r-xl: 20px;
  --r-full: 9999px;

  /* Easing */
  --ease-std:    cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in:     cubic-bezier(0.4, 0, 1, 1);
  --ease-out:    cubic-bezier(0, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows — system tiers
     sm = resting state for all cards (subtle elevation off the field)
     card = hover/raised state (used on hover of every card family)
     raised = modals, prominent panels */
  --shadow-sm:     0 1px 0 rgba(255,255,255,0.03) inset, 0 2px 8px rgba(0,0,0,0.22);
  --shadow-card:   0 1px 0 rgba(255,255,255,0.05) inset, 0 6px 28px rgba(0,0,0,0.32);
  --shadow-raised: 0 8px 40px rgba(0,0,0,0.42);
  --glow-teal:     0 0 32px rgba(45,212,191,0.18);
  --glow-amber:    0 0 32px rgba(245,166,35,0.20);
}

/* ============================================================
   2. RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; background: none; border: none; font: inherit; }
input, textarea, select { font: inherit; }
table { border-collapse: collapse; }

/* ============================================================
   3. BASE
   ============================================================ */
html { font-size: 16px; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  background: var(--vault-charcoal);
  color: var(--pure-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: rgba(45,212,191,0.25); color: var(--pure-white); }

:focus-visible {
  outline: 1.5px solid var(--signal-teal);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-2);
  padding: var(--sp-1) var(--sp-2);
  background: var(--signal-teal);
  color: var(--vault-charcoal);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: var(--r-md);
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: var(--sp-2); }

/* ============================================================
   4. LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(var(--sp-4), 6vw, var(--sp-12));
}

.container--narrow { max-width: 860px; }
.container--wide   { max-width: 1440px; }

section { position: relative; }

.section-pad {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.64s var(--ease-out), transform 0.64s var(--ease-out);
}
html.js .reveal.visible { opacity: 1; transform: none; }
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.32s; }
.reveal--delay-4 { transition-delay: 0.44s; }

/* ============================================================
   5. TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }

.display {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.025em;
}

.h1 { font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.08; letter-spacing: -0.02em; }
.h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); line-height: 1.12; letter-spacing: -0.015em; }
.h3 { font-size: clamp(1.2rem, 2.2vw, 1.75rem); line-height: 1.2; letter-spacing: -0.01em; }

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin: 0 0 var(--sp-2) 0;
}
/* Canonical eyebrow→headline rhythm: any h1/h2/h3 immediately
   following an eyebrow gets a consistent 0 top-margin so the gap
   is determined entirely by the eyebrow's bottom-margin. */
.eyebrow + h1,
.eyebrow + h2,
.eyebrow + h3,
.eyebrow + .h1,
.eyebrow + .h2,
.eyebrow + .h3,
.eyebrow + .display {
  margin-top: 0;
}

.body-lg { font-size: clamp(1rem, 1.3vw, 1.15rem); line-height: 1.6; }
.body    { font-size: 1rem; line-height: 1.55; }
.body-sm { font-size: 0.875rem; line-height: 1.5; }
.caption { font-size: 0.8rem; line-height: 1.4; color: var(--steel-mist); }
.mono    { font-family: var(--font-mono); font-size: 0.85em; }

.text-teal   { color: var(--signal-teal); }
.text-cyan   { color: var(--pulse-cyan); }
.text-amber  { color: var(--orbit-amber); }
.text-muted  { color: var(--steel-mist); }
.text-white  { color: var(--pure-white); }

.text-center { text-align: center; }
.text-left   { text-align: left; }

p + p { margin-top: 1.1em; }

/* ============================================================
   6. NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background 0.3s var(--ease-std), backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
  transform: translateZ(0);
  will-change: background, backdrop-filter;
}

.site-header.scrolled {
  background: rgba(21,25,31,0.9);
  backdrop-filter: blur(20px) saturate(140%);
  border-bottom-color: var(--border);
}

.nav-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(var(--sp-4), 6vw, var(--sp-12));
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

.nav-wordmark {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.nav-wordmark img { filter: brightness(0) invert(1); }
.nav-wordmark svg { height: 22px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  margin-left: auto;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--steel-mist);
  letter-spacing: 0.01em;
  transition: color 0.15s;
  white-space: nowrap;
}
.nav-link:hover,
.nav-link.active { color: var(--pure-white); }

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: var(--sp-1);
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
}
.hamburger-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--pure-white);
  border-radius: 2px;
  transition: transform 0.24s var(--ease-std), opacity 0.2s;
}
.nav-mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) { opacity: 0; }
.nav-mobile-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   7. ENVIRONMENT SYSTEM
   ============================================================ */

/* Base container */
.noane-environment {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  user-select: none;
  transform: translateZ(0);
  will-change: transform;
  contain: layout paint;
}

/* Technical grid */
.env-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45,212,191,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45,212,191,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Vignette overlay */
.env-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 70% at 50% 50%, transparent 40%, rgba(21,25,31,0.9) 100%);
}

.env-vignette--edge {
  background: radial-gradient(ellipse 60% 60% at 50% 50%, transparent 20%, rgba(21,25,31,0.95) 100%);
}

/* Noise texture */
.env-noise {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 300px 300px;
}

/* Signal rings */
/* Signal rings — all signal-teal, larger container, more visible */
.env-signal-rings {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 800px;
}

/* All rings share the same max size — the scale animation drives the
   outward wave; staggered delays produce the rhythmic "emitter" effect. */
.env-signal-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(45,212,191,0.5);
  top: 50%; left: 50%;
  width: 960px; height: 960px;
  transform: translate(-50%, -50%) scale(0.05);
  opacity: 0;
  animation: ring-pulse 6s var(--ease-out) infinite;
}
.env-signal-ring:nth-child(1) { animation-delay: 0s;   }
.env-signal-ring:nth-child(2) { animation-delay: 1.2s; }
.env-signal-ring:nth-child(3) { animation-delay: 2.4s; }
.env-signal-ring:nth-child(4) { animation-delay: 3.6s; }
.env-signal-ring:nth-child(5) { animation-delay: 4.8s; }

/* Pulse nodes */
.env-pulse-nodes {
  position: absolute;
  inset: 0;
}

.env-pulse-node {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal-teal);
  animation: node-breathe 6s var(--ease-std) infinite;
}
.env-pulse-node::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(45,212,191,0.3);
  animation: node-ring 6s var(--ease-out) infinite;
  animation-delay: inherit;
}
/* Node #1 is the central emitter — sits at ring origin and pumps
   every 1.2s so each ring visually launches from it. */
.env-pulse-nodes .env-pulse-node:nth-child(1) {
  top: 50%; left: 50%;
  width: 10px; height: 10px;
  box-shadow: 0 0 14px rgba(45,212,191,0.7);
  animation: node-origin-pulse 1.2s var(--ease-std) infinite;
  animation-delay: 0s;
}
.env-pulse-nodes .env-pulse-node:nth-child(1)::after {
  animation: none;
  opacity: 0;
}
/* Hero/interior size variants for the origin node */
.hero-env .env-pulse-nodes .env-pulse-node:nth-child(1) { width: 12px; height: 12px; }
.interior-env .env-pulse-nodes .env-pulse-node:nth-child(1) { width: 8px; height: 8px; }

/* Satellite receivers — light up as the wave passes them. Delays
   stagger across the remaining 4.8s of the 6s ring cycle. */
.env-pulse-node:nth-child(2) { top: 62%; left: 78%; animation-delay: 1.2s; }
.env-pulse-node:nth-child(3) { top: 38%; left: 72%; animation-delay: 2.4s; }
.env-pulse-node:nth-child(4) { top: 72%; left: 24%; animation-delay: 3.6s; }
.env-pulse-node:nth-child(5) { top: 18%; left: 58%; animation-delay: 4.8s; }

/* Ledger lines */
.env-ledger-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* Ledger lines: 60% teal / 30% amber / 10% cyan — per line, weighted by opacity */
.env-ledger-line {
  position: absolute;
  left: -20%;
  width: 140%;
  height: 1px;
  animation: ledger-drift 12s linear infinite;
}
/* Teal — dominant (60%) */
.env-ledger-line:nth-child(1) {
  top: 22%;
  animation-delay: 0s; animation-duration: 14s;
  background: linear-gradient(90deg, transparent 0%, rgba(45,212,191,0.14) 30%, rgba(45,212,191,0.12) 70%, transparent 100%);
}
/* Amber — secondary (30%) */
.env-ledger-line:nth-child(2) {
  top: 48%;
  animation-delay: 3.5s; animation-duration: 18s;
  background: linear-gradient(90deg, transparent 0%, rgba(245,166,35,0.10) 30%, rgba(245,166,35,0.08) 70%, transparent 100%);
}
/* Cyan — tertiary (10%) */
.env-ledger-line:nth-child(3) {
  top: 71%;
  animation-delay: 7s; animation-duration: 11s;
  background: linear-gradient(90deg, transparent 0%, rgba(34,211,238,0.06) 30%, rgba(34,211,238,0.05) 70%, transparent 100%);
}

/* Chip core */
.env-chip-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 120px; height: 80px;
  opacity: 0.12;
}

/* Circuitry field (PCB traces) */
.env-circuitry {
  position: absolute;
  inset: 0;
  opacity: 0.18;
}

/* Hero-strength environment */
.hero-env { min-height: 100vh; min-height: 100dvh; }
.hero-env .env-signal-rings { width: 1200px; height: 1200px; }
.hero-env .env-circuitry { opacity: 0.22; }
.hero-env .env-pulse-node { width: 7px; height: 7px; }

/* Interior environment — large rings match homepage hero speed/thickness/glow sitewide */
.interior-env .env-signal-rings { width: 1200px; height: 1200px; }
.interior-env .env-circuitry { opacity: 0.09; }
.interior-env .env-pulse-node { width: 5px; height: 5px; }

/* CTA band (compressed) */
.cta-env .env-signal-rings { width: 500px; height: 500px; }
.cta-env .env-circuitry { opacity: 0.07; }

/* Ambient gradient overlays */
.env-glow-teal {
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45,212,191,0.08) 0%, transparent 70%);
  top: 30%; left: 40%;
  transform: translate(-50%, -50%);
  animation: glow-drift 8s ease-in-out infinite alternate;
}

.env-glow-cyan {
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,0.06) 0%, transparent 70%);
  top: 60%; left: 70%;
  transform: translate(-50%, -50%);
  animation: glow-drift 10s ease-in-out infinite alternate-reverse;
}

/* ============================================================
   8. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.78rem;
  border-radius: var(--r-md);
  padding: 14px 28px;
  transition: background 0.15s, color 0.15s, box-shadow 0.2s, transform 0.15s;
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary {
  background: var(--signal-teal);
  color: var(--vault-charcoal);
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: #36e5ca;
  box-shadow: var(--glow-teal);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--pure-white);
  border: 1px solid rgba(45,212,191,0.22);
}
.btn-secondary:hover {
  border-color: rgba(45,212,191,0.55);
  color: var(--signal-teal);
  background: rgba(45,212,191,0.05);
  box-shadow: var(--glow-teal);
  transform: translateY(-1px);
}
.btn-secondary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--pulse-cyan);
  border: 1px solid transparent;
  padding-left: 0; padding-right: 0;
}
.btn-ghost:hover { color: var(--signal-teal); }
.btn-ghost .btn-arrow { transition: transform 0.2s var(--ease-spring); }
.btn-ghost:hover .btn-arrow { transform: translateX(4px); }

.btn-nav {
  font-size: 0.73rem;
  padding: 10px 20px;
  background: var(--signal-teal);
  color: var(--vault-charcoal);
  border: 1px solid transparent;
}
.btn-nav:hover { background: #36e5ca; }

.btn-lg { font-size: 0.84rem; padding: 16px 36px; }

/* ============================================================
   9. CARDS
   ============================================================ */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-4);
}

.card-eyebrow {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin-bottom: var(--sp-2);
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: var(--sp-2);
  letter-spacing: -0.01em;
}

.card-body { color: var(--steel-mist); font-size: 0.9rem; line-height: 1.6; }

/* Validation cards (security page) */
.validation-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-left: 3px solid var(--signal-teal);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: var(--sp-4) var(--sp-6);
  box-shadow: var(--shadow-sm);
}

.amber-card { border-left-color: var(--orbit-amber); }

/* ============================================================
   10. PAGE SECTIONS
   ============================================================ */

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

/* Pill row matches the rest of the site's pill-row spacing system
   (readiness-categories, metric-pills, credibility-tags). The previous
   sp-4 gap was an outlier that became oppressive when pills wrapped to
   a single column on mobile. */
.hero-proof-row {
  display: flex;
  flex-wrap: wrap;
  row-gap: 10px;
  column-gap: var(--sp-3);
  margin-top: var(--sp-6);
  align-items: center;
}

.proof-pill {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-mist);
}

.proof-pill::before {
  content: '';
  display: block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--signal-teal);
  flex-shrink: 0;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-8);
  align-items: center;
}

/* PULL QUOTE BAND */
.pullquote-band {
  position: relative;
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.pullquote-text {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  line-height: 1.5;
  font-weight: 400;
  color: rgba(255,255,255,0.88);
  letter-spacing: -0.01em;
  max-width: 900px;
}

.pullquote-text .brand-word {
  color: var(--signal-teal);
  font-weight: 600;
}

/* Angled step-and-repeat brand backdrop. Applied strategically to
   typographic / conceptual moments only (not data-dense sections).
   Layer oversized to 200% with -50% offset so rotation never exposes
   corners on any aspect ratio (desktop or mobile). */
.pullquote-band--branded::before,
.aphorism-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background-image: url('/assets/img/noane-icon-circle.svg');
  background-repeat: repeat;
  background-size: 150px 150px;
  opacity: 0.12;
  transform: rotate(-16deg);
  transform-origin: center center;
  pointer-events: none;
  z-index: 0;
}
/* Aphorism uses a lower opacity so the dense text stays primary */
.aphorism-section::before { opacity: 0.07; background-size: 170px 170px; }

@media (max-width: 600px) {
  .pullquote-band--branded::before {
    background-size: 110px 110px;
    opacity: 0.14;
  }
  .aphorism-section::before {
    background-size: 120px 120px;
    opacity: 0.08;
  }
}

/* CUSTODY TAX */
.custody-tax-section { background: var(--vault-charcoal); }

.metric-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-6);
}

.metric-pill {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orbit-amber);
  background: rgba(245,166,35,0.08);
  border: 1px solid rgba(245,166,35,0.2);
  border-radius: var(--r-full);
  padding: var(--sp-1) var(--sp-3);
}

/* Generic diagram section background (used by capability section) */
.diagram-section { background: var(--surface-1); }

/* BIND PROTOCOL NODE FLOW */
.bind-node-section {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 20%, rgba(45, 212, 191, 0.12), transparent 34rem),
    linear-gradient(180deg, var(--vault-charcoal) 0%, var(--vault-deep) 100%);
}

.bind-node-background {
  position: absolute;
  inset: 0;
  opacity: 0.45;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 18% 22%, rgba(45, 212, 191, 0.22), transparent 60%),
    radial-gradient(1px 1px at 72% 38%, rgba(34, 211, 238, 0.18), transparent 60%),
    radial-gradient(1px 1px at 36% 78%, rgba(45, 212, 191, 0.18), transparent 60%),
    radial-gradient(1px 1px at 84% 84%, rgba(34, 211, 238, 0.14), transparent 60%);
}

.bind-node-flow {
  position: relative;
  width: min(100%, 760px);
  margin: clamp(48px, 8vw, 96px) auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.bind-node-step {
  position: relative;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
  width: 100%;
  min-height: 96px;
  color: rgba(242, 237, 233, 0.72);
  transition: color 400ms ease, opacity 400ms ease, transform 400ms ease;
  outline: none;
}

.bind-node-step:focus-visible {
  outline: 1px solid rgba(45, 212, 191, 0.6);
  outline-offset: 8px;
  border-radius: 4px;
}

.bind-node {
  width: 28px;
  height: 28px;
  justify-self: center;
  border-radius: 999px;
  border: 1px solid rgba(45, 212, 191, 0.38);
  background: radial-gradient(circle, rgba(45, 212, 191, 0.08), rgba(45, 212, 191, 0.02));
  box-shadow:
    0 0 0 8px rgba(45, 212, 191, 0.03),
    0 0 28px rgba(34, 211, 238, 0.08);
  transition: background 400ms ease, box-shadow 400ms ease, border-color 400ms ease, transform 400ms ease;
}

.bind-node-label {
  padding-left: clamp(12px, 3vw, 32px);
}

.bind-node-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 2vw, 1.35rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(242, 237, 233, 0.86);
  transition: color 400ms ease, text-shadow 400ms ease;
}

.bind-node-subtitle {
  margin: 0.45rem 0 0;
  font-size: clamp(0.95rem, 1.6vw, 1.12rem);
  color: rgba(148, 163, 184, 0.78);
  transition: color 400ms ease;
}

.bind-node-connector {
  width: 1px;
  height: clamp(42px, 6vw, 72px);
  margin-left: 44px;
  align-self: flex-start;
  background: linear-gradient(
    180deg,
    rgba(45, 212, 191, 0.12),
    rgba(34, 211, 238, 0.42),
    rgba(45, 212, 191, 0.12)
  );
  position: relative;
  overflow: hidden;
}

.bind-node-connector::after {
  content: "";
  position: absolute;
  inset: -40% 0;
  background: linear-gradient(180deg, transparent, rgba(45, 212, 191, 0.9), transparent);
  animation: bindSignalTravel 2.8s linear infinite;
}

.bind-node-step.is-active {
  color: var(--signal-teal);
  transform: translateX(4px);
}

.bind-node-step.is-active .bind-node {
  border-color: rgba(45, 212, 191, 1);
  background: radial-gradient(circle, rgba(45, 212, 191, 0.95), rgba(34, 211, 238, 0.18));
  box-shadow:
    0 0 0 10px rgba(45, 212, 191, 0.08),
    0 0 32px rgba(45, 212, 191, 0.48),
    0 0 80px rgba(34, 211, 238, 0.18);
  transform: scale(1.18);
}

.bind-node-step.is-active .bind-node-title {
  color: var(--signal-teal);
  text-shadow: 0 0 24px rgba(45, 212, 191, 0.28);
}

.bind-node-step.is-active .bind-node-subtitle {
  color: rgba(242, 237, 233, 0.92);
}

.bind-node-step.is-complete .bind-node {
  border-color: rgba(34, 211, 238, 0.55);
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.18);
}

.bind-node-explainer {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  color: rgba(242, 237, 233, 0.78);
  font-style: italic;
}

@keyframes bindSignalTravel {
  from { transform: translateY(-40%); }
  to   { transform: translateY(40%); }
}

/* APHORISM */
.aphorism-section {
  background: var(--vault-charcoal);
  position: relative;
  overflow: hidden;
}
.aphorism-section > .container { position: relative; z-index: 1; }

.aphorism-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.0;
  margin-bottom: var(--sp-6);
  color: var(--pure-white);
}

/* THREE PILLARS */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

.pillar {
  padding: var(--sp-6) 0;
  border-top: 2px solid var(--border-accent);
}

.pillar-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin-bottom: var(--sp-2);
}

.pillar-body { font-size: 0.9rem; color: var(--steel-mist); line-height: 1.6; }

/* CREDIBILITY / CTA */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* SIGNAL PAGE — chapters */
.signal-chapters { counter-reset: chapter; }

.signal-chapter {
  padding: var(--sp-12) 0;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--sp-8);
  align-items: start;
}

.chapter-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--signal-teal);
  letter-spacing: 0.1em;
  padding-top: 6px;
  opacity: 0.7;
}

.chapter-content {}
.chapter-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: var(--sp-4);
  color: var(--pure-white);
}

.chapter-body { color: rgba(255,255,255,0.75); max-width: 700px; line-height: 1.65; font-size: 1.05rem; }

/* SIGNAL PAGE — chapter variety system.
   Each chapter pairs the shared number+title+body skeleton with one
   distinct visual treatment borrowed from the homepage vocabulary
   (timeline pills, contrast cards, comparison grid, belief cards,
   aphorism centerpiece). Provides editorial rhythm across six chapters. */

/* Chapter 2 — Aphoristic centerpiece title (replaces .chapter-title only
   for this chapter). ALL CAPS, large display type, with one accent word
   in Signal Teal as the punchline. */
.signal-aphorism {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--pure-white);
  text-transform: uppercase;
  margin: 0 0 var(--sp-5) 0;
}
.signal-aphorism-accent { color: var(--signal-teal); }

/* Chapter 1 — Timeline pill row of historical record systems → NOANE.
   Bordered top and bottom for a typographic-timeline feel. */
.signal-timeline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-6);
  padding: var(--sp-4) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.signal-timeline-pill {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.02);
}
.signal-timeline-pill--accent {
  color: var(--vault-charcoal);
  background: var(--signal-teal);
  border-color: var(--signal-teal);
  font-weight: 700;
}
.signal-timeline-arrow {
  font-family: var(--font-mono);
  color: var(--signal-teal);
  opacity: 0.7;
  margin: 0 4px;
}

/* Chapter 2 — Old assumption vs new reality contrast cards. */
.signal-contrast {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}
.signal-contrast-card {
  padding: var(--sp-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-top: 2px solid var(--steel-mist);
  border-radius: var(--r-md);
}
.signal-contrast-card--now { border-top-color: var(--signal-teal); }
.signal-contrast-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel-mist);
  margin-bottom: var(--sp-3);
}
.signal-contrast-card--now .signal-contrast-label { color: var(--signal-teal); }
.signal-contrast-body {
  font-size: 0.95rem;
  line-height: 1.55;
  color: rgba(255,255,255,0.78);
}

/* Chapter 3 — Inventory pill rows. Strikethrough on replaced items;
   accent fill on replacements. */
.signal-inventory { margin-top: var(--sp-6); }
.signal-inventory-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}
.signal-inventory-row:last-child { margin-bottom: 0; }
.signal-inventory-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel-mist);
  flex-shrink: 0;
  min-width: 72px;
}
.signal-inventory-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}
.signal-inventory-pill {
  font-family: var(--font-display);
  font-size: 0.85rem;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: rgba(255,255,255,0.5);
  text-decoration: line-through;
  text-decoration-color: rgba(255,255,255,0.35);
}
.signal-inventory-pill--accent {
  color: var(--vault-charcoal);
  background: var(--signal-teal);
  border-color: var(--signal-teal);
  text-decoration: none;
  font-weight: 600;
}

/* Hero chapter-nav pill row. Mirrors the homepage's hero-proof-row
   density but tuned for navigation rather than proof labels. */
.signal-chapter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-6);
}
.signal-chapter-nav-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: rgba(255,255,255,0.55);
  background: rgba(255,255,255,0.02);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
@media (hover: hover) {
  .signal-chapter-nav-pill:hover {
    color: var(--signal-teal);
    border-color: rgba(45,212,191,0.4);
    background: rgba(45,212,191,0.06);
  }
}

/* Mount the existing belief-cards and auth-comparison-grid components
   inside signal chapters with consistent top spacing. */
.signal-chapter .belief-cards,
.signal-chapter .auth-comparison-grid {
  margin-top: var(--sp-6);
}

/* Mobile tweaks for the new chapter components. */
@media (max-width: 600px) {
  .signal-inventory-row { flex-direction: column; align-items: flex-start; gap: var(--sp-2); }
  .signal-timeline { gap: 6px; padding: var(--sp-3) 0; }
  .signal-timeline-pill { font-size: 0.72rem; padding: 4px 10px; }
  .signal-chapter-nav-pill { font-size: 0.65rem; }
  .signal-contrast { grid-template-columns: 1fr; }
}

/* Strip default list styling on the new pill-row lists so the visual
   pill treatment is unchanged. The <ul>/<li> markup is purely semantic
   (announces the items as a list to assistive tech). */
.signal-timeline,
.signal-inventory-pills {
  list-style: none;
  padding-left: 0;
  margin: 0;
}
.signal-timeline { margin-top: var(--sp-6); padding: var(--sp-4) 0; }
.signal-inventory-pills { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

/* Security sections */
.security-feature {
  padding: var(--sp-8) 0;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

/* Stub page hero (interior) */
.interior-hero {
  position: relative;
  padding-top: calc(var(--nav-height) + var(--sp-16));
  padding-bottom: var(--sp-16);
  overflow: hidden;
}

.interior-hero .hero-content { max-width: 700px; }

/* Contact form section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

/* ============================================================
   11. DIAGRAMS
   ============================================================ */
.diagram-svg-wrap {
  min-width: 640px;
  max-width: 900px;
  margin: 0 auto;
}

/* ============================================================
   12. FORMS
   ============================================================ */
.form-group { margin-bottom: var(--sp-4); }

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-mist);
  margin-bottom: var(--sp-1);
}

.form-control {
  width: 100%;
  background: var(--surface-1);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  color: var(--pure-white);
  padding: 12px 16px;
  font-size: 0.95rem;
  line-height: 1.5;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-control::placeholder { color: var(--steel-mist); opacity: 0.6; }
.form-control:focus {
  outline: none;
  border-color: var(--signal-teal);
  box-shadow: 0 0 0 3px rgba(45,212,191,0.12);
}

textarea.form-control { resize: vertical; min-height: 140px; }

.form-note {
  font-size: 0.78rem;
  color: var(--steel-mist);
  margin-top: var(--sp-1);
}

/* ============================================================
   13. FOOTER
   ============================================================ */
.site-footer {
  position: relative;
  background: var(--vault-charcoal);
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: var(--sp-8) 0 var(--sp-6);
  gap: var(--sp-8);
}

.footer-wordmark { display: flex; align-items: center; }
.footer-wordmark svg { height: 20px; width: auto; }

.footer-tagline {
  font-size: 0.82rem;
  color: var(--steel-mist);
  margin-top: var(--sp-2);
  max-width: 280px;
  line-height: 1.5;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1) var(--sp-4);
  align-items: center;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--steel-mist);
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--pure-white); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: var(--sp-4) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
}

.footer-legal {
  font-size: 0.78rem;
  color: var(--steel-mist);
  opacity: 0.6;
}

/* Footer signal noise */
.footer-signal {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(45,212,191,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45,212,191,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.5;
}

/* ============================================================
   14. MOTION — KEYFRAMES
   ============================================================ */
@keyframes ring-pulse {
  0%   { opacity: 0;   transform: translate(-50%, -50%) scale(0.05); }
  8%   { opacity: 1;   }
  100% { opacity: 0;   transform: translate(-50%, -50%) scale(1); }
}

@keyframes node-breathe {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

/* Origin emitter — fires once per ring birth (1.2s cycle). Translate
   is baked into every state to preserve centering through the scale. */
@keyframes node-origin-pulse {
  0%, 100% { opacity: 0.85; transform: translate(-50%, -50%) scale(1); }
  15%       { opacity: 1;    transform: translate(-50%, -50%) scale(1.55); }
  55%       { opacity: 0.85; transform: translate(-50%, -50%) scale(1); }
}

@keyframes node-ring {
  0%   { opacity: 0.4; }
  50%  { opacity: 0.1; }
  100% { opacity: 0;   }
}

@keyframes ledger-drift {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes glow-drift {
  0%   { transform: translate(-50%, -50%) scale(1); }
  100% { transform: translate(-50%, -50%) scale(1.3) translate(10%, -8%); }
}

@keyframes trace-flow {
  0%   { stroke-dashoffset: 400; opacity: 0.1; }
  50%  { opacity: 0.4; }
  100% { stroke-dashoffset: 0; opacity: 0.1; }
}

@keyframes circuit-glow {
  0%, 100% { opacity: 0.08; }
  50%       { opacity: 0.20; }
}

/* ============================================================
   15. RESPONSIVE RULES
   ============================================================ */
@media (max-width: 1100px) {
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .security-feature { grid-template-columns: 1fr; gap: var(--sp-6); }
  .contact-grid { grid-template-columns: 1fr; gap: var(--sp-8); }
}

@media (max-width: 860px) {
  /* Mobile nav drawer — section-header treatment per NOANE brand:
     no dividers, uppercase display type, parents bold/white, children
     indented and steel-mist, generous vertical rhythm. */
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: rgba(14,18,22,0.98);
    backdrop-filter: blur(24px) saturate(140%);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--sp-3) clamp(var(--sp-5), 6vw, var(--sp-8)) var(--sp-6);
    z-index: 190;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-link {
    padding: var(--sp-2) 0;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--pure-white);
    border-bottom: none;
  }
  .nav-link:hover,
  .nav-link.active { color: var(--signal-teal); }
  .btn-nav {
    margin-top: var(--sp-4);
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .nav-mobile-toggle { display: flex; }

  .signal-chapter { grid-template-columns: 1fr; gap: var(--sp-4); }
  .chapter-number { padding-top: 0; }
  .pillars-grid { grid-template-columns: 1fr; }

  .bind-node-step { grid-template-columns: 56px minmax(0, 1fr); min-height: 88px; }
  .bind-node { width: 22px; height: 22px; }
  .bind-node-connector { margin-left: 28px; }
  .bind-node-title { letter-spacing: 0.16em; }

  .footer-inner { flex-direction: column; gap: var(--sp-6); }
  .footer-bottom { flex-direction: column; text-align: center; }

  .hero-cta-group { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 600px) {
  .env-signal-rings { width: 320px; height: 320px; }
  .pullquote-text { font-size: 1rem; }
}

/* ============================================================
   16. REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .env-signal-ring { opacity: 0.08; transform: translate(-50%, -50%) scale(0.8) !important; }
  .env-pulse-node { opacity: 0.4; transform: scale(1) !important; }
  .env-pulse-node::after { opacity: 0.2; transform: scale(1) !important; }
  .env-pulse-nodes .env-pulse-node:nth-child(1) {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(1) !important;
  }
  .env-ledger-line { transform: none !important; opacity: 0.04; }
  .bind-node-connector::after { animation: none; }
  .bind-node-step, .bind-node, .bind-node-title, .bind-node-subtitle { transition: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}


/* ============================================================
   PATCH V2 — DROPDOWN NAV · TRI-COLOR · FOOTER GRID
   Brand tri-color system, Auger-depth nav, 4-col footer,
   exposure blocks, ownership stack, capability cycle,
   credibility tags, hw-detail cards, dual-key visual
   ============================================================ */

/* ============================================================
   TRI-COLOR BAR SYSTEM
   Teal 60% | Amber 30% | Cyan 10%
   ============================================================ */
.brand-tricolor-bar {
  display: block;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg,
    #2DD4BF 0% 60%,
    #F5A623 60% 90%,
    #22D3EE 90% 100%
  );
  flex-shrink: 0;
}
.bg-vault-deep { background: var(--vault-deep); }

.brand-tricolor-bar--thin    { height: 2px; }
.brand-tricolor-bar--section { height: 4px; }
.brand-tricolor-bar--menu    { height: 2px; }
.brand-tricolor-bar--card    { height: 2px; border-radius: var(--r-sm) var(--r-sm) 0 0; }
.brand-tricolor-bar--footer  { height: 3px; }

/* ============================================================
   DROPDOWN NAVIGATION
   ============================================================ */
.nav-dropdown-group {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--steel-mist);
  letter-spacing: 0.01em;
  transition: color 0.15s;
  white-space: nowrap;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}
.nav-dropdown-trigger:hover,
.nav-dropdown-trigger[aria-expanded="true"],
.nav-dropdown-trigger.active { color: var(--pure-white); }

.nav-caret {
  display: inline-block;
  width: 0; height: 0;
  border-left: 3.5px solid transparent;
  border-right: 3.5px solid transparent;
  border-top: 4px solid currentColor;
  transition: transform 0.2s var(--ease-std);
  margin-top: 1px;
  opacity: 0.55;
  flex-shrink: 0;
}
.nav-dropdown-trigger[aria-expanded="true"] .nav-caret {
  transform: rotate(180deg);
  opacity: 1;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: -16px;
  min-width: 216px;
  background: rgba(18,22,29,0.98);
  backdrop-filter: blur(28px) saturate(160%);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--r-md) var(--r-md);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.16s var(--ease-out), transform 0.16s var(--ease-out);
  z-index: 300;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.nav-dropdown-group:hover .nav-dropdown,
.nav-dropdown[data-open="true"] {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.nav-dropdown-link {
  display: block;
  padding: 10px 18px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--steel-mist);
  transition: color 0.12s, background 0.12s;
  border-bottom: 1px solid var(--border);
}
.nav-dropdown-link:last-child { border-bottom: none; }
.nav-dropdown-link:hover,
.nav-dropdown-link.active,
.nav-dropdown-link:focus-visible {
  color: var(--pure-white);
  background: rgba(45,212,191,0.05);
  outline: none;
}

/* ============================================================
   EXPOSURE BLOCKS (Custody Tax sub-cards)
   ============================================================ */
.exposure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

.exposure-card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface-1);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.exposure-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.exposure-card-bar {
  height: 2px;
  background: linear-gradient(90deg,
    #2DD4BF 0% 60%,
    #F5A623 60% 90%,
    #22D3EE 90% 100%
  );
}

.exposure-card-inner { padding: var(--sp-4); }

.exposure-card-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orbit-amber);
  margin-bottom: var(--sp-2);
}

.exposure-card-body {
  font-size: 0.88rem;
  color: var(--steel-mist);
  line-height: 1.6;
}

/* ============================================================
   CAPABILITY CYCLE (Manufacture → Ownership → Transfer → Verify)
   ============================================================ */
.cycle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: var(--sp-8);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}

.cycle-step {
  padding: var(--sp-6) var(--sp-4);
  border-right: 1px solid var(--border);
  background: var(--surface-1);
  transition: background 0.2s;
}
.cycle-step:last-child { border-right: none; }
.cycle-step:hover { background: var(--surface-2); }

.cycle-step-number {
  font-family: var(--font-mono);
  font-size: 0.63rem;
  color: var(--signal-teal);
  letter-spacing: 0.12em;
  margin-bottom: var(--sp-3);
  opacity: 0.7;
}

.cycle-step-label {
  font-family: var(--font-display);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pure-white);
  margin-bottom: var(--sp-2);
}

.cycle-step-body {
  font-size: 0.82rem;
  color: var(--steel-mist);
  line-height: 1.55;
}

/* ============================================================
   CREDIBILITY TAGS
   ============================================================ */
.credibility-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: var(--sp-6);
}

.credibility-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel-mist);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  padding: 8px 16px;
  box-shadow: var(--shadow-sm);
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.2s, box-shadow 0.2s;
}
/* Leading dot in signal-teal — small brand mark, ties tags to the
   60% accent without flooding them with color */
.credibility-tag::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal-teal);
  margin-right: 10px;
  opacity: 0.7;
  transition: opacity 0.2s, box-shadow 0.2s;
}
.credibility-tag:hover {
  color: var(--pure-white);
  background: var(--surface-2);
  border-color: var(--border-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}
.credibility-tag:hover::before {
  opacity: 1;
  box-shadow: 0 0 8px rgba(45,212,191,0.6);
}

@media (max-width: 600px) {
  .credibility-tags {
    justify-content: center;
    gap: 8px;
    margin-top: var(--sp-5);
  }
  .credibility-tag {
    padding: 7px 13px;
    font-size: 0.68rem;
    letter-spacing: 0.1em;
  }
  .credibility-tag::before {
    width: 4px;
    height: 4px;
    margin-right: 8px;
  }
}

/* ============================================================
   FOOTER GRID — 4-column grouped (replaces .footer-inner)
   ============================================================ */
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 0.7fr 0.8fr;
  gap: var(--sp-8);
  padding: var(--sp-12) 0 var(--sp-8);
}

.footer-col-label {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin-bottom: var(--sp-4);
  display: block;
}

.footer-col {
  display: flex;
  flex-direction: column;
}

.footer-col a {
  font-size: 0.82rem;
  color: var(--steel-mist);
  transition: color 0.15s;
  padding: 4px 0;
  display: block;
}
.footer-col a:hover { color: var(--pure-white); }

/* ============================================================
   SIGNAL PAGE — editorial intro
   ============================================================ */
.signal-intro-band {
  padding: var(--sp-8) 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.signal-intro-text {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.3rem);
  font-weight: 400;
  color: rgba(255,255,255,0.42);
  letter-spacing: -0.01em;
  line-height: 1.55;
  max-width: 680px;
}

/* Chapter tri-color marker */
.chapter-tricolor {
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg,
    #2DD4BF 0% 60%,
    #F5A623 60% 90%,
    #22D3EE 90% 100%
  );
  margin-bottom: var(--sp-4);
  flex-shrink: 0;
}

/* ============================================================
   SECURITY — hardware detail cards
   ============================================================ */
.hw-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

.hw-detail-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-4);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.hw-detail-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.hw-detail-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    #2DD4BF 0% 60%,
    #F5A623 60% 90%,
    #22D3EE 90% 100%
  );
}

.hw-detail-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin-bottom: var(--sp-2);
  margin-top: var(--sp-1);
}

.hw-detail-body {
  font-size: 0.84rem;
  color: var(--steel-mist);
  line-height: 1.55;
}

/* Dual-key visual */
.dual-key-visual {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: var(--sp-3);
  align-items: center;
  margin-top: var(--sp-6);
  padding: var(--sp-6);
  background: var(--surface-2);
  border: 1px solid var(--border-accent);
  border-radius: var(--r-md);
}

.dual-key-item { text-align: center; }

.dual-key-step {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--signal-teal);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--sp-1);
  opacity: 0.6;
}

.dual-key-item-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--pure-white);
  margin-bottom: 4px;
}

.dual-key-item-sub {
  font-size: 0.75rem;
  color: var(--steel-mist);
}

.dual-key-connector {
  color: var(--signal-teal);
  font-size: 1.2rem;
  opacity: 0.35;
  text-align: center;
  flex-shrink: 0;
}

/* ============================================================
   FORM ROW (first/last name split)
   ============================================================ */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}

/* ============================================================
   COMPANY PAGE — extended content blocks
   ============================================================ */
.company-quadrant {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-top: var(--sp-8);
}

.company-quad-cell {
  padding: var(--sp-8) var(--sp-6);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface-1);
  transition: background 0.2s;
}
.company-quad-cell:hover { background: var(--surface-2); }
.company-quad-cell:nth-child(2n) { border-right: none; }
.company-quad-cell:nth-child(3),
.company-quad-cell:nth-child(4) { border-bottom: none; }

.company-quad-eyebrow {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin-bottom: var(--sp-3);
}

.company-quad-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--pure-white);
  margin-bottom: var(--sp-3);
  letter-spacing: -0.01em;
}

.company-quad-body {
  font-size: 0.88rem;
  color: var(--steel-mist);
  line-height: 1.6;
}

/* ============================================================
   RESPONSIVE PATCHES FOR V2 COMPONENTS
   ============================================================ */
@media (max-width: 1100px) {
  .exposure-grid { grid-template-columns: 1fr; gap: var(--sp-3); }
  .cycle-grid { grid-template-columns: repeat(2, 1fr); }
  .cycle-step { border-bottom: 1px solid var(--border); }
  .cycle-step:nth-child(2n) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: var(--sp-6); }
  .footer-brand { grid-column: 1 / -1; }
  .company-quadrant { grid-template-columns: 1fr; }
  .company-quad-cell:nth-child(2n) { border-right: none; }
  .company-quad-cell { border-right: none; border-bottom: 1px solid var(--border); }
  .company-quad-cell:last-child { border-bottom: none; }
}

@media (max-width: 860px) {
  /* Dropdown nav on mobile — parent labels render as section headers
     (uppercase, bold, white), children render flat beneath them
     (uppercase, lighter weight, indented, muted). No dividers, no caret. */
  .nav-dropdown-group {
    display: block;
    width: 100%;
  }
  .nav-dropdown-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--sp-2) 0;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--pure-white);
    text-align: left;
    background: transparent;
    border: none;
    cursor: pointer;
    pointer-events: auto;
  }
  .nav-dropdown-trigger .nav-caret {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-left: var(--sp-3);
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.22s var(--ease-std);
    opacity: 0.6;
  }
  .nav-dropdown-trigger[aria-expanded="true"] .nav-caret {
    transform: rotate(-135deg);
    opacity: 1;
  }
  .nav-dropdown-trigger[aria-expanded="true"] { color: var(--signal-teal); }
  .nav-dropdown {
    position: static !important;
    opacity: 1 !important;
    transform: none !important;
    pointer-events: all !important;
    background: transparent !important;
    backdrop-filter: none !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    min-width: 0 !important;
    display: none !important;
    flex-direction: column;
  }
  .nav-dropdown[data-open="true"] {
    display: flex !important;
    padding-bottom: var(--sp-2) !important;
  }
  .brand-tricolor-bar--menu { display: none !important; }
  .nav-dropdown-link {
    padding: var(--sp-1) 0 var(--sp-1) var(--sp-5);
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--steel-mist);
    border-bottom: none;
  }
  .nav-dropdown-link:hover,
  .nav-dropdown-link.active,
  .nav-dropdown-link:focus-visible {
    color: var(--signal-teal);
    background: transparent;
  }
  .nav-links {
    overflow-y: auto;
    max-height: calc(100vh - var(--nav-height));
    max-height: calc(100dvh - var(--nav-height));
  }
  .exposure-grid { grid-template-columns: 1fr; }
  .cycle-grid { grid-template-columns: 1fr; }
  .cycle-step { border-right: none; border-bottom: 1px solid var(--border); }
  .hw-detail-grid { grid-template-columns: 1fr; }
  .dual-key-visual { grid-template-columns: 1fr; gap: var(--sp-2); }
  .dual-key-connector { transform: rotate(90deg); }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .about-protocol-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   V3 PATCH — Signal strip, readiness, loop, comparison, operator
   60/30/10 balanced: charcoal 60% / steel-mist 30% / signal-teal 10%
   ============================================================ */

/* ── Signal Strip ── */
.signal-strip {
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.signal-strip-headline {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 600;
  color: var(--pure-white);
  letter-spacing: -0.01em;
}
.signal-strip-micro {
  font-size: 0.88rem;
  color: var(--steel-mist);
  margin-top: 6px;
}

/* ── Protocol Readiness Strip ── */
.protocol-readiness-section {
  padding: var(--sp-10) 0;
  border-bottom: 1px solid var(--border);
}
.readiness-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
.readiness-pill {
  padding: 6px var(--sp-3);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-full);
  font-size: 0.78rem;
  font-family: var(--font-display);
  color: var(--steel-mist);
  letter-spacing: 0.04em;
  background: transparent;
}

/* ── From Auth to Ownership comparison ── */
.evolve-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}
.auth-comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}
.comparison-col {
  padding: var(--sp-5) var(--sp-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.comparison-col-header {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding-bottom: var(--sp-3);
  margin-bottom: var(--sp-4);
  border-bottom: 1px solid var(--border);
}
.comparison-col-header--auth { color: var(--steel-mist); }
/* Teal is intentional here — the right column represents the ownership state (accent role) */
.comparison-col-header--owner { color: var(--signal-teal); border-bottom-color: rgba(45,212,191,0.25); }
.comparison-col--owner { border-color: var(--border-strong); }
.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  margin-bottom: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.58);
  line-height: 1.5;
}
.comparison-item:last-child { margin-bottom: 0; }
.comparison-item-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--steel-mist);
  margin-top: 7px;
  flex-shrink: 0;
}
/* Single teal dot in owner column as accent — correct 10% use */
.comparison-col--owner .comparison-item-dot { background: var(--signal-teal); }
.comparison-col--owner .comparison-item { color: rgba(255,255,255,0.72); }
.evolve-closing {
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--steel-mist);
}
.evolve-closing strong { color: var(--pure-white); }

/* ── Ownership Loop ── */
.ownership-loop-section {
  padding: var(--section-pad) 0;
}
.loop-steps {
  display: grid;
  /* auto-fit so the grid spans full width regardless of card count.
     Floor of 130px ensures all 7 cards (the largest known instance)
     fit on every desktop width above the 1100px tablet breakpoint,
     avoiding an orphaned card on row 2. */
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-top: var(--sp-8);
}
.loop-step {
  padding: var(--sp-4) var(--sp-3);
  border-right: 1px solid var(--border);
  background: var(--surface-1);
  transition: background 0.15s;
}
.loop-step:last-child { border-right: none; }
.loop-step:hover { background: var(--surface-2); }
/* Step numbers use signal-teal — sequence identity markers */
.loop-step-number {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--signal-teal);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.loop-step-title {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--pure-white);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.loop-step-body {
  font-size: 0.72rem;
  color: var(--steel-mist);
  line-height: 1.55;
}

/* ── Capability deeper cards ── */
.capability-cards-deeper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}
.capability-card-deep {
  padding: var(--sp-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  border-top: 2px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.capability-card-deep:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
/* 60/30/10 color hierarchy across the three states:
   - In    = orbit-amber  (10% — flags the problem state)
   - Proof = signal-teal  (60% — the dominant protocol accent)
   - Out   = pulse-cyan   (30% — secondary accent marking the resolved outcome) */
.capability-card-deep--in    { border-top-color: var(--orbit-amber); }
.capability-card-deep--proof { border-top-color: var(--signal-teal); }
.capability-card-deep--out   { border-top-color: var(--pulse-cyan); }
.capability-card-deep-eyebrow {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
  color: var(--steel-mist);
}
/* Eyebrow colors mirror the border-top accent for each card state */
.capability-card-deep--in    .capability-card-deep-eyebrow { color: var(--orbit-amber); }
.capability-card-deep--proof .capability-card-deep-eyebrow { color: var(--signal-teal); }
.capability-card-deep--out   .capability-card-deep-eyebrow { color: var(--pulse-cyan); }
.capability-card-deep-body {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.62);
  line-height: 1.6;
}

/* ── Operator Integration Layer ── */
.operator-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}
.operator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--sp-3);
  margin-top: var(--sp-8);
}
/* Cards use standard border — no teal on every card */
.operator-card {
  padding: var(--sp-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.operator-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
/* Numbers are card identity markers — signal-teal (60% dominant) */
.operator-card-number {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--signal-teal);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.operator-card-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--pure-white);
  margin-bottom: var(--sp-2);
}
.operator-card-body {
  font-size: 0.82rem;
  color: var(--steel-mist);
  line-height: 1.55;
}
.operator-closing {
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--steel-mist);
}

/* ── Protocol Surface Area ── */
.surface-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}
.surface-area-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-8);
}
.surface-card {
  padding: var(--sp-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.surface-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.surface-card-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--pure-white);
  margin-bottom: 6px;
}
.surface-card-body {
  font-size: 0.82rem;
  color: var(--steel-mist);
  line-height: 1.55;
}

/* ── Split Statement (Aphorism section) ── */
.split-statement {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: var(--sp-8);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.split-item {
  padding: var(--sp-5) var(--sp-5);
  border-right: 1px solid var(--border);
  background: var(--surface-1);
  text-align: left;
}
.split-item:last-child { border-right: none; }
.split-item-verb {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal-teal);
  margin-bottom: var(--sp-2);
}
.split-item-body {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.68);
  line-height: 1.5;
}
.split-micro {
  margin-top: var(--sp-5);
  font-size: 0.85rem;
  color: var(--steel-mist);
}

/* ── Credibility Section (Built by operators) ──
   Single-column intro block. The previous 2-col grid produced cramped
   narrow text columns at any viewport <1280px and was an outlier vs the
   rest of the site, which uses a consistent eyebrow + h2 + body intro
   pattern (max-width ~780px). */
.credibility-intro {
  max-width: 780px;
}
/* Canonical vertical rhythm inside the intro block. Replaces the
   inline margin-top styles that previously created inconsistent
   spacing (sp-4 vs sp-3 vs ad-hoc values). */
.credibility-intro > h2 + p { margin-top: var(--sp-4); }
.credibility-intro > p + p  { margin-top: var(--sp-3); }
/* Voice paragraph: brighter than the muted lead so the operator
   voice carries more weight, but identical line-height and font
   size to its sibling — only the color shifts. */
.credibility-voice {
  color: rgba(255, 255, 255, 0.82);
}
.credibility-cta {
  margin-top: var(--sp-8);
  text-align: center;
}

/* ── Belief Cards ──
   Match the unified brand-card system (matches .capability-card-deep):
   border-top accent (not border-left), 2px width, Signal Teal as the
   60% dominant accent since all four cards represent the same belief class.
   Uses auto-fit minmax so the grid adapts to available width without
   media-query gymnastics — naturally flows 4→2→1 col as space shrinks. */
.belief-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-10);
}
.belief-card {
  padding: var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-top: 2px solid var(--signal-teal);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
/* Hover only on devices with real hover capability — prevents the
   sticky-hover effect on touch devices where :hover persists after tap. */
@media (hover: hover) {
  .belief-card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-card);
    transform: translateY(-2px);
  }
}
.belief-card-number {
  font-size: 0.65rem;
  color: var(--signal-teal);
  display: block;
  margin-bottom: var(--sp-2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
}
.belief-card-text {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--pure-white);
}

/* ── Signal Notes ── */
.signal-note {
  margin-top: var(--sp-4);
  padding: var(--sp-2) var(--sp-4);
  border-left: 2px solid var(--border-strong);
  background: transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.signal-note-label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-teal);
  display: block;
  margin-bottom: 4px;
}
.signal-note-text {
  font-size: 0.82rem;
  color: var(--steel-mist);
  font-style: italic;
  line-height: 1.5;
}

/* ── Doctrine Grid ── */
.doctrine-section {
  margin-top: var(--sp-10);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border);
}
.doctrine-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.doctrine-item {
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
/* Doctrine verb is NOANE affirmative — signal-teal (60% dominant brand) */
.doctrine-verb {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--signal-teal);
  display: block;
  margin-bottom: 3px;
}
.doctrine-contrast {
  font-size: 0.78rem;
  color: var(--steel-mist);
}

/* ── Threat Model + Failure Modes (Security page) ── */
.threat-section {
  margin-top: var(--sp-12);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border);
}
.threat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
/* Amber left border — amber is the secondary accent (not teal overload) */
.threat-card {
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-left: 2px solid var(--orbit-amber);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
}
.failure-section {
  margin-top: var(--sp-10);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border);
}
.failure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
.failure-card {
  padding: var(--sp-4) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.68);
  line-height: 1.5;
}
/* Verdict uses teal — it's the resolved state, single use per card = correct accent */
.failure-verdict {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-teal);
  display: block;
  margin-top: var(--sp-2);
}

/* ── About "Not" section ── */
.not-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
.not-card {
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: rgba(255,255,255,0.42);
  text-decoration: line-through;
  text-decoration-color: var(--orbit-amber);
  text-decoration-thickness: 1px;
}
.not-primitive {
  margin-top: var(--sp-5);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--pure-white);
}
.why-now-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-8);
  margin-top: var(--sp-5);
  padding: var(--sp-5) var(--sp-6);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.why-now-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.88rem;
  color: rgba(255,255,255,0.68);
}
/* Single teal dot per item — correct micro-accent use */
.why-now-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal-teal);
  flex-shrink: 0;
}

/* ── Docs Index ── */
.docs-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}
.docs-index-card {
  padding: var(--sp-5);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color 0.15s;
}
.docs-index-card:hover { border-color: var(--border-strong); }
/* Numbers are card identity markers — signal-teal */
.docs-index-number {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--signal-teal);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.docs-index-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pure-white);
  margin-bottom: 6px;
}
.docs-index-body {
  font-size: 0.82rem;
  color: var(--steel-mist);
  line-height: 1.55;
}

/* ── Transfer Modes ── */
.transfer-modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
  margin-top: var(--sp-5);
}
/* Consistent top border — no colored top, keeps parity between modes */
.transfer-mode-card {
  padding: var(--sp-6);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-top: 2px solid var(--border-strong);
  border-radius: var(--r-md);
}
/* Numbers are card identity markers — signal-teal */
.transfer-mode-number {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--signal-teal);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.transfer-mode-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--pure-white);
  margin-bottom: var(--sp-3);
}
.transfer-mode-body {
  font-size: 0.88rem;
  color: var(--steel-mist);
  line-height: 1.6;
}

/* ── Partners ── */
.partner-categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-2);
  margin-top: var(--sp-5);
}
/* Left-aligned, no text-center */
.partner-category-card {
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.68);
  text-align: left;
}
.pilot-steps-grid {
  display: grid;
  /* auto-fit so the grid spans full width regardless of step count.
     Floor of 130px keeps all 7 pilot steps on one row at every desktop
     width above the 1100px tablet breakpoint. */
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-top: var(--sp-8);
}
.pilot-step {
  padding: var(--sp-4) var(--sp-3);
  border-right: 1px solid var(--border);
  background: var(--surface-1);
}
.pilot-step:last-child { border-right: none; }
.pilot-step-tri {
  height: 2px;
  width: 100%;
  margin-bottom: var(--sp-3);
  background: linear-gradient(90deg, #2DD4BF 0% 33.33%, #F5A623 33.33% 66.67%, #F2EDE9 66.67% 100%);
}
/* Numbers are step identity markers — signal-teal */
.pilot-step-number {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--signal-teal);
  margin-bottom: 5px;
  text-transform: uppercase;
}
.pilot-step-title {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--pure-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Patent advancement sections ── */
.advancement-section,
.operator-relevance-section {
  margin-top: var(--sp-10);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--border);
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .loop-steps          { grid-template-columns: repeat(4, 1fr); }
  .surface-area-grid   { grid-template-columns: repeat(2, 1fr); }
  .capability-cards-deeper { grid-template-columns: 1fr 1fr; }
  .pilot-steps-grid    { grid-template-columns: repeat(4, 1fr); }
  .partner-categories-grid { grid-template-columns: repeat(2, 1fr); }
  .docs-index-grid     { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .loop-steps          { grid-template-columns: repeat(2, 1fr); }
  .auth-comparison-grid { grid-template-columns: 1fr; }
  .split-statement     { grid-template-columns: 1fr; }
  .split-item          { border-right: none; border-bottom: 1px solid var(--border); }
  .split-item:last-child { border-bottom: none; }
  .surface-area-grid   { grid-template-columns: 1fr; }
  .capability-cards-deeper { grid-template-columns: 1fr; }
  .operator-grid       { grid-template-columns: 1fr 1fr; }
  .doctrine-grid       { grid-template-columns: 1fr 1fr; }
  .transfer-modes-grid { grid-template-columns: 1fr; }
  .partner-categories-grid { grid-template-columns: 1fr 1fr; }
  .pilot-steps-grid    { grid-template-columns: repeat(2, 1fr); }
  .docs-index-grid     { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .loop-steps          { grid-template-columns: 1fr; }
  .doctrine-grid       { grid-template-columns: 1fr; }
  .operator-grid       { grid-template-columns: 1fr; }
  .pilot-steps-grid    { grid-template-columns: 1fr; }
  .partner-categories-grid { grid-template-columns: 1fr; }
}

/* ── 7-card grid variant: row-2 always spans full width ──
   Placed AFTER the responsive overrides so that, at equal class
   specificity, the variant rules win by source order.
   - >= 861px: explicit 4+3 layout on a 12-column track. Row 1 has
     4 items × 3 cols; row 2 has 3 items × 4 cols. Both rows fill 12 cols.
   - 481-860px: keeps the inherited 2-column base from the tablet override
     but makes the 7th (orphan) card span both columns so row 4 is full.
   - <= 480px: the existing 1fr base already removes any orphan possibility. */
@media (min-width: 861px) {
  .loop-steps--7,
  .pilot-steps-grid--7 {
    grid-template-columns: repeat(12, 1fr);
  }
  .loop-steps--7 > .loop-step:nth-child(-n+4),
  .pilot-steps-grid--7 > .pilot-step:nth-child(-n+4) {
    grid-column: span 3;
  }
  .loop-steps--7 > .loop-step:nth-child(n+5),
  .pilot-steps-grid--7 > .pilot-step:nth-child(n+5) {
    grid-column: span 4;
  }
}
@media (min-width: 481px) and (max-width: 860px) {
  .loop-steps--7 > .loop-step:nth-child(7),
  .pilot-steps-grid--7 > .pilot-step:nth-child(7) {
    grid-column: 1 / -1;
  }
}

/* =========================================================================
   Contact form: honeypot wrapper + work-email hint
   ========================================================================= */

/* Visually hidden honeypot wrapper. Stays off-screen so humans never see it
   but stays in the accessibility tree's source order. aria-hidden on the
   wrapper keeps screen readers from announcing the bogus "Website" field. */
.form-hp-wrap {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Work-email helper text rendered directly under the Work email input. */
.form-hint {
  margin-top: var(--sp-1);
  font-family: var(--font-body);
  font-size: 0.78rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.01em;
}

/* =========================================================================
   DATA TABLE — brand-aligned, mobile-responsive comparison table
   ========================================================================= */
.data-table-wrap {
  margin-top: var(--sp-5);
  border: 1px solid rgba(45, 212, 191, 0.18);
  border-radius: 4px;
  background: rgba(14, 18, 22, 0.6);
  overflow: hidden;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body, 'DM Sans', system-ui, sans-serif);
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.55;
  font-size: 0.95rem;
}
.data-table thead tr {
  background: rgba(45, 212, 191, 0.06);
  border-bottom: 1px solid rgba(45, 212, 191, 0.35);
}
.data-table th {
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-teal);
  text-align: left;
  padding: var(--sp-3);
  vertical-align: bottom;
}
.data-table td {
  padding: var(--sp-3);
  vertical-align: top;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr { transition: background 160ms ease; }
.data-table tbody tr:hover { background: rgba(45, 212, 191, 0.04); }
.data-table td:first-child,
.data-table th:first-child {
  color: rgba(255, 255, 255, 0.98);
  font-weight: 600;
}
.data-table td:first-child { font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif); }

/* Mobile: stack rows as labeled cards. Avoid horizontal scroll. */
@media (max-width: 720px) {
  .data-table-wrap { border-radius: 4px; background: transparent; border: 0; }
  .data-table,
  .data-table thead,
  .data-table tbody,
  .data-table tr,
  .data-table th,
  .data-table td { display: block; width: 100%; }
  .data-table thead {
    position: absolute;
    width: 1px; height: 1px;
    margin: -1px; padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    border: 0;
  }
  .data-table tr {
    border: 1px solid rgba(45, 212, 191, 0.18);
    border-radius: 4px;
    background: rgba(14, 18, 22, 0.6);
    padding: var(--sp-2) var(--sp-3);
    margin-bottom: var(--sp-3);
  }
  .data-table tbody tr:hover { background: rgba(14, 18, 22, 0.6); }
  .data-table td {
    padding: var(--sp-2) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .data-table tr td:last-child { border-bottom: 0; }
  .data-table td::before {
    content: attr(data-label);
    display: block;
    font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--signal-teal);
    margin-bottom: var(--sp-1);
  }
  .data-table td:first-child {
    border-bottom: 1px solid rgba(45, 212, 191, 0.25);
    padding-bottom: var(--sp-2);
    margin-bottom: var(--sp-1);
    font-size: 1.05rem;
  }
  .data-table td:first-child::before { display: none; }
}