/* =========================================================
   Operational Steel Theme
   ========================================================= */

:root,
html[data-theme="light"] {
  color-scheme: light;

  --page-bg: #F6F8FA;
  --section-bg-primary: #FFFFFF;
  --section-bg-secondary: #EEF2F5;

  --surface-primary: #FFFFFF;
  --surface-secondary: #F3F6F8;
  --surface-emphasis: rgba(59, 130, 184, 0.10);

  --text-primary: #0F1720;
  --text-secondary: #3D4F5F;
  --text-muted: #647687;

  --border-primary: #DCE3E9;
  --border-strong: #C5CFD8;

  --accent-primary: #3B82B8;
  --accent-hover: #2F6A96;
  --accent-secondary: #5B9BC9;
  --accent-soft: rgba(59, 130, 184, 0.14);
  --accent-line: rgba(59, 130, 184, 0.55);

  --shadow-card: 0 10px 30px rgba(15, 23, 32, 0.06);
  --shadow-elevated: 0 16px 40px rgba(15, 23, 32, 0.10);

  --focus-ring: 0 0 0 3px rgba(59, 130, 184, 0.15);

  --status-success: #059669;
  --status-danger: #DC2626;
  --status-warning: #D97706;

  --accent-on-primary: #FFFFFF;
  --hero-glow-secondary: rgba(91, 155, 201, 0.12);

  /* Compatibility aliases only */
  --venora-purple: var(--accent-primary);
  --venora-violet: var(--accent-secondary);
  --venora-cyan: var(--accent-secondary);
  --venora-background: var(--page-bg);
  --venora-panel: var(--surface-primary);
  --venora-panel-2: var(--surface-secondary);
  --venora-line: var(--border-primary);
}

html[data-theme="dark"] {
  color-scheme: dark;

  --page-bg: #070A0F;
  --section-bg-primary: #0C1218;
  --section-bg-secondary: #121A22;

  --surface-primary: #141C26;
  --surface-secondary: #0F161E;
  --surface-emphasis: #1A2430;

  --text-primary: #E5E7EB;
  --text-secondary: #9AA3AD;
  --text-muted: #6B737C;

  --border-primary: rgba(71, 85, 99, 0.65);
  --border-strong: rgba(90, 104, 118, 0.82);

  --accent-primary: #3B82B8;
  --accent-hover: #2F6A96;
  --accent-secondary: #5B9BC9;
  --accent-soft: rgba(59, 130, 184, 0.16);
  --accent-line: rgba(91, 155, 201, 0.55);

  --shadow-card: 0 18px 48px rgba(0, 0, 0, 0.28);
  --shadow-elevated: 0 24px 64px rgba(0, 0, 0, 0.36);

  --focus-ring: 0 0 0 3px rgba(59, 130, 184, 0.25);

  --status-success: #059669;
  --status-danger: #DC2626;
  --status-warning: #D97706;

  --accent-on-primary: #FFFFFF;
  --hero-glow-secondary: rgba(91, 155, 201, 0.14);

  /* Compatibility aliases only */
  --venora-purple: var(--accent-primary);
  --venora-violet: var(--accent-secondary);
  --venora-cyan: var(--accent-secondary);
  --venora-background: var(--page-bg);
  --venora-panel: var(--surface-primary);
  --venora-panel-2: var(--surface-secondary);
  --venora-line: var(--border-primary);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 7.25rem; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--page-bg);
  color: var(--text-primary);
  margin: 0;
}

.text-venora-purple { color: var(--accent-primary); }
.bg-venora-purple {
  background-color: var(--accent-primary);
}
.border-venora-purple { border-color: var(--accent-primary); }
.hover\:border-venora-purple:hover { border-color: var(--accent-primary); }

.section-shell { max-width: 76rem; margin: 0 auto; padding-left: 1rem; padding-right: 1rem; width: 100%; }

.page-section {
  min-height: calc(100vh - 4rem);
  display: flex;
  align-items: center;
  padding-top: 2rem;
  padding-bottom: 2rem;
}
.compact-section {
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
}
@media (max-width: 1023px) {
  .page-section {
    min-height: auto;
    align-items: stretch;
    padding-top: 4rem;
    padding-bottom: 4rem;
  }
}

.technical-label,
.usecase-line {
  color: var(--accent-primary);
}
.eyebrow {
  color: var(--accent-secondary);
  letter-spacing: .16em;
  text-transform: uppercase;
  font-weight: 800;
  font-size: .72rem;
  margin-bottom: .75rem;
  display: block;
}
.hero-title,
.section-title,
.panel-title,
.card-title {
  color: var(--text-primary);
}
.hero-title {
  font-size: clamp(2.5rem, 10vw, 4rem);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: -0.02em;
}
@media (min-width: 640px) {
  .hero-title { font-size: clamp(3rem, 5vw, 5.5rem); }
}
.section-title {
  font-size: clamp(1.8rem, 8vw, 2.5rem);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.02em;
}
@media (min-width: 640px) {
  .section-title { font-size: clamp(2rem, 3vw, 3.25rem); }
}
.section-lead,
.body-copy,
.supporting-copy {
  color: var(--text-secondary);
}
.section-lead {
  font-size: .95rem;
  line-height: 1.65;
  max-width: 42rem;
}
@media (min-width: 640px) {
  .section-lead { font-size: clamp(1rem, 1.2vw, 1.125rem); }
}
.card-title {
  font-size: .95rem;
  font-weight: 800;
  line-height: 1.3;
}
.card-copy {
  color: var(--text-muted);
  font-size: clamp(.78rem, 1vw, .875rem);
  line-height: 1.45;
}
.dense-grid {
  display: grid;
  gap: .85rem;
}
.screen-grid {
  display: grid;
  align-items: center;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .screen-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.5rem;
  }
}
.visual-fit {
  width: 100%;
  max-height: 280px;
  height: auto;
  object-fit: contain;
  display: block;
}
.visual-fit-sm {
  width: 100%;
  max-height: 200px;
  height: auto;
  object-fit: contain;
  display: block;
}
.hero-panel {
  max-height: 520px;
  overflow: auto;
}

.hero-bg {
  background:
    radial-gradient(circle at 12% 18%, var(--accent-soft), transparent 34%),
    radial-gradient(circle at 88% 22%, var(--hero-glow-secondary), transparent 36%),
    radial-gradient(circle at 50% 92%, var(--accent-soft), transparent 34%),
    linear-gradient(180deg, var(--page-bg) 0%, var(--section-bg-primary) 68%);
}
.card {
  background: var(--surface-primary);
  border: 1px solid var(--border-primary);
  border-radius: 1.25rem;
  box-shadow: var(--shadow-card);
}
.soft-card {
  background: var(--surface-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 1.25rem;
}
.gradient-text {
  background: linear-gradient(
    90deg,
    var(--text-primary),
    var(--accent-secondary) 48%,
    var(--accent-primary)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.glow-border {
  box-shadow:
    0 0 16px color-mix(
      in srgb,
      var(--accent-primary) 48%,
      transparent
    ),
    0 0 5px color-mix(
      in srgb,
      var(--accent-primary) 24%,
      transparent
    ) inset;
  border-color: var(--accent-line);
  border: 1px solid var(--accent-line);
  transition: all .25s ease;
}
.glow-border:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 28px color-mix(
      in srgb,
      var(--accent-primary) 65%,
      transparent
    ),
    0 0 10px color-mix(
      in srgb,
      var(--accent-primary) 35%,
      transparent
    ) inset;
}
.divider-gradient {
  height: 2px;
  background: linear-gradient(to right, transparent, var(--accent-primary), var(--accent-secondary), transparent);
}
.chip {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent-secondary);
  border: 1px solid var(--accent-line);
}
.visual-frame {
  background:
    radial-gradient(
      circle at top right,
      var(--accent-soft),
      transparent 38%
    ),
    var(--surface-secondary);
  border-color: var(--border-primary);
  border: 1px solid var(--border-primary);
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.hover-lift { transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease; }
.hover-lift:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-elevated);
}

.problem-step {
  background: var(--surface-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 1rem;
  padding: .9rem;
  display: flex;
  gap: .85rem;
  align-items: flex-start;
}
.problem-num {
  min-width: 2rem;
  height: 2rem;
  border-radius: .75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .72rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-weight: 800;
  color: var(--accent-secondary);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  box-shadow:
    0 0 22px color-mix(
      in srgb,
      var(--accent-primary) 14%,
      transparent
    );
  flex-shrink: 0;
}
.problem-warning {
  background: linear-gradient(
    90deg,
    var(--accent-soft),
    var(--hero-glow-secondary)
  );
  border: 1px solid var(--accent-line);
  border-radius: 1rem;
}
@media (min-width: 1024px) and (max-height: 800px) {
  #why-now.page-section {
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
  }
  #why-now .section-title {
    font-size: clamp(1.75rem, 2.45vw, 2.45rem);
  }
  #why-now .section-lead {
    font-size: .9rem;
    line-height: 1.5;
  }
  #why-now .card-copy {
    font-size: .78rem;
    line-height: 1.35;
  }
}

@media (min-width: 1024px) and (max-height: 800px) {
  #problem.page-section {
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
  }
  #problem .section-title {
    font-size: clamp(1.75rem, 2.45vw, 2.45rem);
  }
  #problem .section-lead {
    font-size: .92rem;
    line-height: 1.5;
  }
  #problem .problem-step {
    padding: .65rem;
    gap: .65rem;
  }
  #problem .problem-step .card-copy {
    line-height: 1.35;
  }
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .35rem .7rem;
  border-radius: 9999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-primary);
  color: var(--text-primary);
  font-size: .72rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.theme-toggle:hover {
  border-color: var(--accent-primary);
}
.theme-toggle:focus-visible {
  border-color: var(--accent-primary);
  box-shadow: var(--focus-ring);
}

/* Mobile menu — hidden on desktop */
.mobile-menu-toggle,
.mobile-menu {
  display: none;
}

@media (max-width: 1023px) {
  header nav {
    min-height: 4rem;
    padding: 0.65rem 0.8rem;
    gap: 0.45rem;
  }

  header nav > a:first-child {
    gap: 0.4rem;
    min-width: 0;
  }

  header .brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    flex: 0 0 auto;
  }

  header nav > a:first-child > span {
    font-size: clamp(1rem, 4.5vw, 1.2rem);
    white-space: nowrap;
  }

  header nav > div:last-child {
    margin-left: auto;
    gap: 0.4rem;
  }

  .mobile-menu-toggle {
    width: 2.35rem;
    height: 2.35rem;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0;
    border: 1px solid var(--border-primary);
    border-radius: 0.65rem;
    background: var(--surface-primary);
    color: var(--text-primary);
    cursor: pointer;
  }

  .mobile-menu-toggle span {
    width: 1rem;
    height: 1.5px;
    display: block;
    background: currentColor;
  }

  .mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 50;
    padding: 0.8rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
    background: var(--surface-primary);
    border-top: 1px solid var(--border-primary);
    border-bottom: 1px solid var(--border-primary);
    box-shadow: var(--shadow-card);
  }

  .mobile-menu:not([hidden]) {
    display: grid;
  }

  .mobile-menu a {
    padding: 0.7rem 0.8rem;
    border-radius: 0.65rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 650;
    text-align: center;
    text-decoration: none;
  }

  .mobile-menu a:hover,
  .mobile-menu a:focus-visible {
    background: var(--accent-soft);
    color: var(--accent-hover);
  }
}

@media (max-width: 480px) {
  header nav {
    padding-inline: 0.55rem;
  }

  header .theme-toggle {
    width: 2.35rem;
    height: 2.35rem;
    justify-content: center;
    padding: 0;
    position: relative;
  }

  header .theme-toggle #theme-toggle-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  header a[href="#contact"],
  header a[href="/#contact"] {
    padding: 0.6rem 0.75rem;
    font-size: 0.78rem;
    white-space: nowrap;
  }
}

.section-tone-primary {
  background: var(--section-bg-primary);
}
.section-tone-secondary {
  background: var(--section-bg-secondary);
}

.brand-mark {
  display: block;
  height: 2.5rem;
  width: auto;
}
html[data-theme="dark"] .brand-mark {
  background: #F8FAFC;
  border-radius: 5px;
  padding: 2px;
}

/* =========================================================
   Pilots section — native journey
   ========================================================= */

.pilots-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pilots-intro {
  margin-bottom: 0.15rem;
}

.pilot-journey {
  padding: 1.15rem 1.15rem 1rem;
  overflow: hidden;
}

.pilot-stages {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  isolation: isolate;
}

.pilot-stage {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.3rem;
  min-width: 0;
  padding: 0.35rem 0.5rem;
  background: var(--surface-primary);
}

/* Default (<640): vertical dashed flow between stacked stages */
.pilot-stage:not(:last-child)::before,
.pilot-stage:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.pilot-stage:not(:last-child)::before {
  top: 100%;
  left: 50%;
  width: 0;
  height: 0.7rem;
  margin-top: 0.15rem;
  border-left: 1px dashed var(--accent-line);
  transform: translateX(-50%);
}

.pilot-stage:not(:last-child)::after {
  top: calc(100% + 0.85rem);
  left: 50%;
  width: 0;
  height: 0;
  border: 3.5px solid transparent;
  border-top-color: var(--accent-line);
  transform: translateX(-50%);
}

.pilot-stage-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  color: var(--accent-secondary);
}

.pilot-stage-icon svg {
  width: 100%;
  height: 100%;
}

.pilot-stage-purpose {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-secondary);
}

.pilot-stage-title {
  margin: 0;
  color: var(--text-primary);
  font-size: 0.98rem;
  font-weight: 800;
  line-height: 1.25;
}

.pilot-stage-desc {
  margin: 0;
  max-width: 16rem;
  color: var(--text-secondary);
  font-size: 0.8rem;
  line-height: 1.4;
}

@media (min-width: 768px) and (max-width: 899px) {
  .pilot-stages {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem 1.35rem;
  }

  .pilot-stage:last-child {
    grid-column: 1 / -1;
    justify-self: center;
    width: min(100%, 18rem);
  }

  /* Stage 1 → 2: horizontal dashed arrow in column gap */
  .pilot-stage:first-child:not(:last-child)::before {
    top: 50%;
    left: 100%;
    width: 1rem;
    height: 0;
    margin-top: 0;
    margin-left: 0.175rem;
    border-left: none;
    border-top: 1px dashed var(--accent-line);
    transform: translateY(-50%);
  }

  .pilot-stage:first-child:not(:last-child)::after {
    top: 50%;
    left: calc(100% + 1.175rem);
    border: 3.5px solid transparent;
    border-left-color: var(--accent-line);
    transform: translateY(-50%);
  }

  /* Stage 2 → 3: vertical dashed arrow into the row below */
  .pilot-stage:nth-child(2):not(:last-child)::before {
    top: 100%;
    left: 50%;
    width: 0;
    height: 0.85rem;
    margin-top: 0.2rem;
    margin-left: 0;
    border-top: none;
    border-left: 1px dashed var(--accent-line);
    transform: translateX(-50%);
  }

  .pilot-stage:nth-child(2):not(:last-child)::after {
    top: calc(100% + 1.05rem);
    left: 50%;
    border: 3.5px solid transparent;
    border-top-color: var(--accent-line);
    transform: translateX(-50%);
  }
}

@media (min-width: 900px) {
  .pilot-stages {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.35rem;
    padding: 0 0.25rem;
  }

  .pilot-stage {
    height: 100%;
  }

  /* Horizontal dashed arrows between all three stages */
  .pilot-stage:not(:last-child)::before {
    top: 50%;
    left: 100%;
    width: 1rem;
    height: 0;
    margin-top: 0;
    margin-left: 0.175rem;
    border-left: none;
    border-top: 1px dashed var(--accent-line);
    transform: translateY(-50%);
  }

  .pilot-stage:not(:last-child)::after {
    top: 50%;
    left: calc(100% + 1.175rem);
    border: 3.5px solid transparent;
    border-left-color: var(--accent-line);
    border-top-color: transparent;
    transform: translateY(-50%);
  }
}

.pilot-proof {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  margin-top: 1.1rem;
  padding-top: 0.95rem;
  border-top: 1px solid var(--border-primary);
}

.pilot-proof-label {
  flex: 0 0 auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-secondary);
}

.pilot-proof-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  flex: 1 1 12rem;
  min-width: 0;
}

.pilot-proof-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  max-width: 100%;
  padding: 0.28rem 0.55rem;
  border: 1px solid var(--border-primary);
  border-radius: 0.45rem;
  background: var(--surface-secondary);
  color: var(--text-secondary);
  font-size: 0.72rem;
  line-height: 1.25;
  white-space: normal;
}

.pilot-proof-item svg {
  flex: 0 0 auto;
  width: 0.75rem;
  height: 0.75rem;
  color: var(--status-success);
}

.pilot-scope {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 0.55rem 0.15rem 0;
  text-align: center;
}

.pilot-scope-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.pilot-scope-label {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-secondary);
}

.pilot-scope-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0;
  margin: 0;
  max-width: 56rem;
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.45;
}

.pilot-scope-items span {
  white-space: normal;
}

.pilot-scope-items span:not(:last-child)::after {
  content: "·";
  margin: 0 0.45rem;
  color: var(--text-muted);
}

@media (max-width: 1023px) {
  .pilots-section {
    gap: 1.1rem;
  }
}

html[data-theme="light"] .problem-num {
  box-shadow: none;
}

#contact-form input,
#contact-form textarea,
#contact-form select {
  background: var(--surface-primary);
  color: var(--text-primary);
  border-color: var(--border-primary);
}
#contact-form input::placeholder,
#contact-form textarea::placeholder {
  color: var(--text-muted);
}
#contact-form input:focus,
#contact-form textarea:focus,
#contact-form select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--focus-ring);
}

html[data-theme="light"] #contact-form input,
html[data-theme="light"] #contact-form textarea {
  background: var(--surface-primary) !important;
  border-color: var(--border-primary) !important;
  color: var(--text-primary) !important;
}
html[data-theme="light"] #contact-form input::placeholder,
html[data-theme="light"] #contact-form textarea::placeholder {
  color: var(--text-muted);
}
html[data-theme="light"] #contact-form input:focus,
html[data-theme="light"] #contact-form textarea:focus {
  border-color: var(--accent-primary) !important;
  box-shadow: var(--focus-ring);
}

/* Light remaps for hardcoded Tailwind color utilities (color-only) */
html[data-theme="light"] .bg-\[\#0D1117\] {
  background-color: var(--section-bg-primary) !important;
}
html[data-theme="light"] .bg-\[\#080B10\] {
  background-color: var(--page-bg) !important;
}
html[data-theme="light"] .bg-\[\#05070b\] {
  background-color: var(--section-bg-primary) !important;
}
html[data-theme="light"] .bg-\[\#05070b\]\/90 {
  background-color: color-mix(in srgb, var(--section-bg-primary) 88%, transparent) !important;
}
html[data-theme="light"] .bg-\[\#0B1220\] {
  background-color: var(--page-bg) !important;
}
html[data-theme="light"] .bg-gray-900 {
  background-color: var(--surface-primary) !important;
}
html[data-theme="light"] .bg-gray-900\/40 {
  background-color: color-mix(in srgb, var(--page-bg) 90%, transparent) !important;
}
html[data-theme="light"] .bg-gray-900\/60 {
  background-color: var(--page-bg) !important;
}

html[data-theme="light"] .text-white {
  color: var(--text-primary) !important;
}
html[data-theme="light"] .bg-venora-purple.text-white,
html[data-theme="light"] .bg-venora-purple {
  color: var(--accent-on-primary) !important;
}
html[data-theme="light"] .text-gray-200 {
  color: var(--text-secondary) !important;
}
html[data-theme="light"] .text-gray-300 {
  color: var(--text-secondary) !important;
}
html[data-theme="light"] .text-gray-400 {
  color: var(--text-muted) !important;
}
html[data-theme="light"] .text-gray-600 {
  color: var(--text-muted) !important;
}

html[data-theme="light"] .border-gray-600 {
  border-color: var(--border-strong) !important;
}
html[data-theme="light"] .border-gray-700 {
  border-color: var(--border-primary) !important;
}
html[data-theme="light"] .border-gray-700\/60 {
  border-color: var(--border-primary) !important;
}
html[data-theme="light"] .border-gray-800 {
  border-color: var(--border-primary) !important;
}

/* Remap purple Tailwind utilities -> accent tokens (both themes) */
.text-purple-100,
.text-purple-200,
.text-purple-300,
.text-purple-400 {
  color: var(--accent-secondary) !important;
}
.bg-purple-400 {
  background-color: var(--accent-primary) !important;
}
.bg-purple-500\/5,
.bg-purple-500\/10,
.bg-purple-500\/20 {
  background-color: var(--accent-soft) !important;
}
.border-purple-400\/30,
.border-purple-500\/20,
.border-purple-500\/25,
.border-purple-500\/30 {
  border-color: var(--accent-line) !important;
}

html[data-theme="light"] .text-blue-200 {
  color: #1D4ED8 !important;
}
html[data-theme="light"] .text-blue-300 {
  color: #2563EB !important;
}
html[data-theme="light"] .text-emerald-200 {
  color: #047857 !important;
}
html[data-theme="light"] .text-emerald-300 {
  color: #059669 !important;
}
html[data-theme="light"] .text-amber-200 {
  color: #B45309 !important;
}
html[data-theme="light"] .text-amber-300 {
  color: var(--status-warning) !important;
}
html[data-theme="light"] .text-red-200 {
  color: #B91C1C !important;
}
html[data-theme="light"] .text-red-300 {
  color: var(--status-danger) !important;
}
html[data-theme="light"] .text-green-400 {
  color: var(--status-success) !important;
}
html[data-theme="light"] .text-red-400 {
  color: var(--status-danger) !important;
}

/* =========================================================
   Platform Blueprint — visual architecture map
   ========================================================= */

#architecture .architecture-intro {
  margin-bottom: 1rem;
}

#architecture .system-blueprint {
  position: relative;
  padding: 0.85rem 0.9rem 0.7rem;
  margin-bottom: 0.6rem;
  overflow: hidden;
  background: var(--surface-secondary);
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-card);
}

#architecture .bp-symbol-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

#architecture .bp-icon,
#architecture .bp-icon-sm,
#architecture .bp-icon-md,
#architecture .bp-icon-lg,
#architecture .bp-icon-xl {
  display: block;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

#architecture .bp-icon-sm { width: 0.85rem; height: 0.85rem; }
#architecture .bp-icon-md { width: 1.35rem; height: 1.35rem; }
#architecture .bp-icon-lg { width: 1.75rem; height: 1.75rem; }
#architecture .bp-icon-xl { width: 2.4rem; height: 2.4rem; margin: 0 auto 0.35rem; }

#architecture .blueprint-connectors {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

#architecture .blueprint-connectors .bp-flow {
  fill: none;
  stroke: var(--accent-primary);
  stroke-width: 1.6;
  stroke-linecap: round;
  opacity: 0.72;
}

#architecture .blueprint-connectors .bp-flow-main {
  stroke-dasharray: 6 8;
  animation: bp-flow-dash 4.5s linear infinite;
}

#architecture .blueprint-connectors .bp-audit {
  fill: none;
  stroke: var(--accent-secondary);
  stroke-width: 1.1;
  stroke-dasharray: 5 5;
  opacity: 0.5;
}

#architecture .blueprint-connectors .bp-check {
  fill: var(--surface-primary);
  stroke: var(--accent-primary);
  stroke-width: 1.4;
}

#architecture .blueprint-connectors .bp-check-amber {
  stroke: var(--status-warning);
  fill: color-mix(in srgb, var(--status-warning) 18%, var(--surface-primary));
}

#architecture .blueprint-connectors .bp-check-green {
  stroke: var(--status-success);
  fill: color-mix(in srgb, var(--status-success) 16%, var(--surface-primary));
}

#architecture .blueprint-connectors .bp-flow-label {
  fill: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#architecture .blueprint-connectors .bp-flow-label-amber { fill: var(--status-warning); }
#architecture .blueprint-connectors .bp-flow-label-green { fill: var(--status-success); }

#architecture .blueprint-connectors .bp-audit-label {
  fill: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.03em;
  opacity: 0.85;
}

@keyframes bp-flow-dash {
  to { stroke-dashoffset: -28; }
}

#architecture .blueprint-canvas {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.2fr) minmax(0, 0.56fr) minmax(0, 0.2fr);
  gap: 0.7rem;
  align-items: stretch;
  min-height: 26rem;
}

#architecture .blueprint-zone {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.65rem 0.6rem 0.55rem;
  border: 1px solid var(--border-primary);
  border-radius: 0.55rem;
  background: var(--surface-primary);
  min-width: 0;
}

#architecture .zone-title {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  line-height: 1.25;
}

#architecture .zone-status {
  margin: auto 0 0;
  padding-top: 0.35rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1.35;
  text-align: center;
}

/* ----- Sources hub ----- */
#architecture .source-hub {
  position: relative;
  flex: 1;
  display: grid;
  place-items: center;
  min-height: 11.5rem;
}

#architecture .source-wires {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

#architecture .source-wires .source-wire {
  fill: none;
  stroke: var(--accent-line);
  stroke-width: 0.7;
  stroke-dasharray: 1.4 1.6;
  opacity: 0.5;
}

#architecture .source-wires .source-wire-feed {
  stroke: var(--accent-primary);
  opacity: 0.45;
  stroke-dasharray: 1.6 1.8;
}

#architecture .blueprint-connectors .bp-source-wire {
  fill: none;
  stroke: var(--accent-line);
  stroke-width: 1.15;
  stroke-dasharray: 3.5 3.5;
  opacity: 0.5;
  stroke-linecap: round;
}

#architecture .source-hub-core {
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  border: 1.5px solid var(--accent-line);
  background: color-mix(in srgb, var(--accent-soft) 55%, var(--surface-secondary));
  display: grid;
  place-items: center;
  z-index: 2;
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent-soft) 35%, transparent);
}

#architecture .source-satellites {
  position: absolute;
  inset: 0.2rem;
  z-index: 2;
  pointer-events: none;
}

#architecture .source-sat {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  pointer-events: auto;
  z-index: 2;
}

#architecture .source-sat-docs {
  top: 0;
  left: 0;
}

#architecture .source-sat-data {
  top: 0;
  right: 0;
}

#architecture .source-sat-ops {
  bottom: 0;
  left: 0;
}

#architecture .source-sat-media {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

#architecture .source-sat-sensor {
  bottom: 0;
  right: 0;
}

#architecture .sat-icon {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 0.35rem;
  border: 1px solid var(--border-primary);
  background: var(--surface-secondary);
  display: grid;
  place-items: center;
}

#architecture .sat-label {
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.15;
  max-width: 4.4rem;
}

/* ----- Venora boundary ----- */
#architecture .venora-boundary {
  border: 1.5px solid var(--accent-line);
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--accent-soft) 40%, var(--surface-primary)) 0%,
      var(--surface-primary) 38%
    );
}

#architecture .boundary-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.3rem 0.6rem;
}

#architecture .boundary-chip {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-secondary);
  line-height: 1.3;
}

#architecture .venora-map {
  position: relative;
  flex: 1;
  min-height: 18.5rem;
  display: grid;
  place-items: center;
}

#architecture .venora-spokes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

#architecture .venora-spokes .bp-spoke {
  fill: none;
  stroke: var(--accent-line);
  stroke-width: 0.6;
  stroke-dasharray: 1.2 1.4;
  opacity: 0.4;
  transition: opacity 0.2s ease, stroke-width 0.2s ease, stroke 0.2s ease;
}

#architecture .venora-spokes .bp-spoke.is-lit {
  opacity: 1;
  stroke: var(--accent-primary);
  stroke-width: 1.1;
  stroke-dasharray: none;
}

#architecture .governance-ring {
  position: absolute;
  left: 50%;
  top: 48%;
  width: min(92%, 22rem);
  height: min(78%, 15.5rem);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1.5px dashed color-mix(in srgb, var(--status-warning) 65%, var(--border-strong));
  background: color-mix(in srgb, var(--status-warning) 7%, transparent);
  pointer-events: none;
  z-index: 0;
}

#architecture .governance-caption {
  position: absolute;
  left: 50%;
  bottom: 0.15rem;
  transform: translateX(-50%);
  margin: 0;
  z-index: 2;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--status-warning);
  white-space: nowrap;
}

#architecture .ai-core {
  position: relative;
  z-index: 2;
  width: min(11.5rem, 42%);
  padding: 0.75rem 0.65rem 0.65rem;
  border-radius: 0.65rem;
  border: 1.5px solid var(--accent-primary);
  background: color-mix(in srgb, var(--accent-soft) 50%, var(--surface-secondary));
  text-align: center;
  box-shadow: var(--shadow-card);
}

#architecture .ai-core-icons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}

#architecture .core-title {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
}

#architecture .core-support {
  margin: 0.25rem 0 0;
  font-size: 0.58rem;
  line-height: 1.3;
  color: var(--text-muted);
}

#architecture .plane-node {
  appearance: none;
  position: absolute;
  z-index: 2;
  width: 8.4rem;
  max-width: 38%;
  padding: 0.4rem 0.45rem;
  border: 1px solid var(--border-primary);
  border-radius: 0.45rem;
  background: var(--surface-secondary);
  color: inherit;
  text-align: left;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "icon name"
    "icon phrase";
  column-gap: 0.35rem;
  row-gap: 0.1rem;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

#architecture .plane-node:hover,
#architecture .plane-node:focus-visible,
#architecture .plane-node.is-active {
  border-color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-soft) 40%, var(--surface-secondary));
  box-shadow: var(--focus-ring);
  outline: none;
}

#architecture .plane-icon {
  grid-area: icon;
  align-self: center;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 0.3rem;
  border: 1px solid var(--border-primary);
  background: var(--surface-primary);
  display: grid;
  place-items: center;
}

#architecture .plane-name {
  grid-area: name;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  line-height: 1.2;
}

#architecture .plane-phrase {
  grid-area: phrase;
  font-size: 0.56rem;
  line-height: 1.25;
  color: var(--text-secondary);
}

#architecture .plane-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.4rem);
  transform: translateX(-50%);
  width: max(10.5rem, 100%);
  padding: 0.35rem 0.45rem;
  border-radius: 0.35rem;
  border: 1px solid var(--border-strong);
  background: var(--surface-primary);
  color: var(--text-secondary);
  font-size: 0.58rem;
  line-height: 1.35;
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, visibility 0.15s ease;
  z-index: 5;
}

#architecture .plane-node:hover .plane-tip,
#architecture .plane-node:focus-visible .plane-tip,
#architecture .plane-node.is-active .plane-tip {
  opacity: 1;
  visibility: visible;
}

#architecture .plane-application { top: 8%; left: 4%; }
#architecture .plane-control { top: 8%; right: 4%; left: auto; }
#architecture .plane-governance { top: 2%; left: 50%; transform: translateX(-50%); width: 9rem; }
#architecture .plane-data { bottom: 12%; left: 4%; top: auto; }
#architecture .plane-model { bottom: 12%; right: 4%; left: auto; top: auto; }

#architecture .plane-governance .plane-tip {
  bottom: auto;
  top: calc(100% + 0.35rem);
}

/* ----- Output ----- */
#architecture .output-zone {
  border-color: color-mix(in srgb, var(--status-success) 35%, var(--border-primary));
}

#architecture .output-doc {
  flex: 1;
  display: grid;
  place-items: center;
}

#architecture .output-doc-body {
  width: 100%;
  max-width: 11rem;
  padding: 0.85rem 0.65rem 0.7rem;
  border: 1.5px solid color-mix(in srgb, var(--status-success) 40%, var(--border-primary));
  border-radius: 0.45rem;
  background: var(--surface-secondary);
  text-align: center;
  position: relative;
}

#architecture .output-title {
  margin: 0 0 0.45rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
}

#architecture .output-badges {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.28rem;
}

#architecture .out-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.22rem 0.25rem;
  border-radius: 0.28rem;
  border: 1px solid var(--border-primary);
  background: var(--surface-primary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

#architecture .out-badge.is-verified {
  border-color: color-mix(in srgb, var(--status-success) 45%, var(--border-primary));
  color: var(--status-success);
}

#architecture .out-badge .bp-icon-sm {
  color: inherit;
}

#architecture .blueprint-legend {
  margin: 0;
  text-align: center;
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--text-muted);
}

@media (prefers-reduced-motion: reduce) {
  #architecture .blueprint-connectors .bp-flow-main {
    animation: none;
  }
}

/* Mobile flow arrows — desktop/tablet hidden */
#architecture .mobile-flow-arrow {
  display: none;
}

/* Tablet */
@media (max-width: 1099px) and (min-width: 768px) {
  #architecture .blueprint-canvas {
    grid-template-columns: 1fr;
    gap: 0.65rem;
    min-height: 0;
  }

  #architecture .blueprint-connectors {
    display: none;
  }

  #architecture .venora-map {
    min-height: 20rem;
  }

  #architecture .source-hub {
    min-height: 10rem;
  }
}

/* Mobile Blueprint — vertical Sources → Venora → Output */
@media (max-width: 767px) {
  #architecture .architecture-intro {
    text-align: left;
    margin-bottom: 1.5rem;
  }

  #architecture .architecture-intro .section-lead {
    text-align: left;
  }

  #architecture .blueprint-connectors {
    display: none;
  }

  #architecture .system-blueprint,
  #architecture .blueprint-canvas {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    padding: 0.85rem;
    border-radius: 1rem;
    min-height: 0;
  }

  #architecture .blueprint-zone {
    width: 100%;
    min-width: 0;
    padding: 0.9rem;
    border-radius: 0.9rem;
    flex: none;
  }

  #architecture .source-hub,
  #architecture .venora-map,
  #architecture .output-doc {
    flex: none;
    min-height: 0;
  }

  #architecture .source-hub {
    display: block;
    padding: 0.2rem 0;
  }

  #architecture .source-hub-core {
    display: none;
  }

  #architecture .source-wires {
    display: none;
  }

  #architecture .source-satellites {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
  }

  #architecture .source-sat {
    position: static;
    transform: none;
    min-width: 0;
    padding: 0.65rem;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 0.55rem;
    text-align: left;
    border: 1px solid var(--border-primary);
    border-radius: 0.4rem;
    background: var(--surface-secondary);
  }

  #architecture .source-sat:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    width: calc(50% - 0.275rem);
    justify-self: center;
  }

  #architecture .source-sat-media {
    grid-column: auto;
    justify-content: flex-start;
  }

  #architecture .source-sat .bp-icon,
  #architecture .source-sat svg {
    width: 1.5rem;
    height: 1.5rem;
    flex: 0 0 auto;
  }

  #architecture .sat-label {
    text-align: left;
    max-width: none;
  }

  #architecture .zone-status {
    margin: 0.65rem 0 0;
  }

  #architecture .boundary-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }

  #architecture .boundary-chip {
    white-space: normal;
  }

  #architecture .venora-map {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
    padding-bottom: 0;
    margin-top: 0.75rem;
  }

  #architecture .governance-ring {
    display: none;
  }

  #architecture .venora-spokes {
    display: none;
  }

  #architecture .governance-caption {
    position: static;
    transform: none;
    order: 2;
    margin: 0.75rem 0;
    text-align: center;
    white-space: normal;
    padding: 0;
  }

  #architecture .ai-core {
    width: 100%;
    max-width: none;
    order: 1;
    padding: 1rem;
    margin-top: 0;
  }

  #architecture .plane-node {
    position: static;
    width: 100%;
    max-width: none;
    min-height: 0;
    transform: none;
    order: 3;
    padding: 0.75rem;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    gap: 0.7rem;
    text-align: left;
  }

  #architecture .plane-node .bp-icon,
  #architecture .plane-node svg {
    width: 1.6rem;
    height: 1.6rem;
    flex: 0 0 auto;
  }

  #architecture .plane-phrase {
    margin-top: 0.15rem;
    width: 100%;
    text-align: left;
  }

  #architecture .plane-tip {
    position: static;
    transform: none;
    width: 100%;
    margin-top: 0.3rem;
    opacity: 0;
    max-height: 0;
    padding: 0;
    border: 0;
    overflow: hidden;
  }

  #architecture .plane-node:hover .plane-tip,
  #architecture .plane-node:focus-visible .plane-tip,
  #architecture .plane-node.is-active .plane-tip {
    opacity: 1;
    max-height: 4rem;
    padding: 0.3rem 0.4rem;
    border: 1px solid var(--border-strong);
  }

  #architecture .output-doc {
    max-width: 17rem;
    margin: 0.75rem auto 0;
    padding: 1rem;
  }

  #architecture .output-badges {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
  }

  #architecture .out-badge {
    padding: 0.45rem;
  }

  #architecture .mobile-flow-arrow {
    width: 1px;
    height: 2rem;
    margin: 0 auto;
    display: block;
    position: relative;
    border-left: 1.5px dashed var(--accent-primary);
    flex: none;
  }

  #architecture .mobile-flow-arrow::after {
    content: "";
    position: absolute;
    left: -4px;
    bottom: -1px;
    width: 7px;
    height: 7px;
    border-right: 1.5px solid var(--accent-primary);
    border-bottom: 1.5px solid var(--accent-primary);
    transform: rotate(45deg);
  }

  #architecture .blueprint-legend {
    margin-top: 0.9rem;
    text-align: center;
  }
}

@media (min-width: 1024px) and (max-height: 900px) {
  #architecture.page-section {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  #architecture .architecture-intro {
    margin-bottom: 0.65rem;
  }

  #architecture .architecture-intro .section-title {
    font-size: clamp(1.7rem, 2.2vw, 2.3rem);
  }

  #architecture .architecture-intro .section-lead {
    font-size: 0.86rem;
    line-height: 1.35;
  }

  #architecture .system-blueprint {
    padding: 0.6rem 0.65rem 0.5rem;
  }

  #architecture .blueprint-canvas {
    min-height: 22rem;
  }

  #architecture .venora-map {
    min-height: 16rem;
  }

  #architecture .plane-node {
    width: 7.6rem;
    padding: 0.32rem 0.38rem;
  }
}

@media (min-width: 1024px) and (max-height: 800px) {
  #architecture.page-section {
    padding-top: 0.55rem;
    padding-bottom: 0.55rem;
  }

  #architecture .architecture-intro {
    margin-bottom: 0.45rem;
  }

  #architecture .architecture-intro .section-title {
    font-size: clamp(1.5rem, 2vw, 2.05rem);
  }

  #architecture .system-blueprint {
    padding: 0.45rem 0.5rem;
  }

  #architecture .blueprint-canvas {
    min-height: 19.5rem;
    gap: 0.45rem;
  }

  #architecture .venora-map {
    min-height: 14.5rem;
  }
}

/* ============================================================
   Mobile-responsive refinement (≤767px / industries ≤1023)
   Desktop (≥1024) rules above remain authoritative.
   ============================================================ */

@media (max-width: 767px) {
  :root {
    --mobile-font-hero: clamp(2.35rem, 10.5vw, 3rem);
    --mobile-font-section-title: clamp(2rem, 9vw, 2.65rem);
    --mobile-font-panel-title: 1.35rem;
    --mobile-font-card-title: 1.08rem;
    --mobile-font-lead: 1rem;
    --mobile-font-body: 0.95rem;
    --mobile-font-small: 0.82rem;
    --mobile-font-label: 0.75rem;
    --mobile-font-mono: 0.72rem;
    --mobile-font-button: 0.84rem;
  }

  /* Typography scale */
  .hero-title,
  .hero-bg h1 {
    font-size: var(--mobile-font-hero) !important;
    line-height: 1.02;
    letter-spacing: -0.035em;
  }

  .section-title {
    font-size: var(--mobile-font-section-title);
    line-height: 1.05;
    letter-spacing: -0.035em;
  }

  .panel-title,
  .trust-chain-title {
    font-size: var(--mobile-font-panel-title) !important;
    line-height: 1.16;
  }

  .card-title {
    font-size: var(--mobile-font-card-title) !important;
    line-height: 1.3;
  }

  .section-lead {
    max-width: none;
    font-size: var(--mobile-font-lead) !important;
    line-height: 1.58;
    color: var(--text-secondary);
  }

  .hero-bg .section-lead {
    color: inherit;
  }

  .body-copy,
  .card-copy,
  .supporting-copy {
    font-size: var(--mobile-font-body) !important;
    line-height: 1.52;
  }

  .eyebrow {
    margin-bottom: 0.65rem;
    font-size: var(--mobile-font-label);
    line-height: 1.3;
    letter-spacing: 0.13em;
    color: var(--accent-hover);
  }

  .technical-label,
  .usecase-line,
  .pilot-proof-label,
  .pilot-stage-purpose,
  .boundary-chip,
  .governance-caption {
    font-size: var(--mobile-font-mono) !important;
    line-height: 1.45;
    letter-spacing: 0.08em;
  }

  #architecture .zone-title {
    font-size: var(--mobile-font-label) !important;
    line-height: 1.3;
  }

  .chip,
  .pilot-proof-item,
  .out-badge {
    font-size: var(--mobile-font-small) !important;
    line-height: 1.35;
  }

  button,
  .theme-toggle,
  header a[href="#contact"],
  header a[href="/#contact"],
  .hero-bg a[href="#contact"],
  .hero-bg a[href="#architecture"] {
    font-size: var(--mobile-font-button) !important;
  }

  header nav > a:first-child > span {
    font-size: clamp(1rem, 4.5vw, 1.18rem);
    line-height: 1;
    letter-spacing: 0.04em;
  }

  .theme-toggle {
    font-size: 0.82rem !important;
  }

  header a[href="#contact"],
  header a[href="/#contact"] {
    font-size: 0.82rem !important;
    line-height: 1.2;
  }

  .mobile-menu a {
    font-size: 0.92rem;
    line-height: 1.3;
  }

  .section-title,
  .section-lead,
  .card-title,
  .card-copy,
  .body-copy,
  .supporting-copy {
    overflow-wrap: normal;
    word-break: normal;
    hyphens: none;
  }

  .section-lead,
  .body-copy,
  .card-copy {
    max-width: 100%;
  }

  /* Blueprint diagram roles */
  #architecture .sat-label {
    font-size: var(--mobile-font-small) !important;
    line-height: 1.3;
  }

  #architecture .core-title,
  #architecture .output-title {
    font-size: var(--mobile-font-card-title) !important;
    line-height: 1.3;
  }

  #architecture .core-support,
  #architecture .plane-phrase {
    font-size: var(--mobile-font-body) !important;
    line-height: 1.4;
  }

  #architecture .plane-name {
    font-size: var(--mobile-font-label) !important;
    line-height: 1.25;
  }

  #architecture .blueprint-legend {
    font-size: var(--mobile-font-body);
    line-height: 1.5;
  }

  /* Pilots */
  #pilots .pilot-stage-title {
    font-size: var(--mobile-font-card-title) !important;
    line-height: 1.3;
  }

  #pilots .pilot-stage-desc,
  #pilots .pilot-scope-items {
    font-size: var(--mobile-font-body) !important;
    line-height: 1.45;
  }

  #pilots .pilot-scope-label {
    font-size: var(--mobile-font-mono) !important;
  }

  /* Contact */
  #contact-form input,
  #contact-form textarea {
    font-size: 1rem !important;
  }

  #contact-form button {
    font-size: var(--mobile-font-button) !important;
    min-height: 3rem;
  }

  /* Spacing */
  .page-section {
    min-height: auto;
    padding-top: 3.25rem;
    padding-bottom: 3.25rem;
    align-items: flex-start;
  }

  .compact-section {
    padding-top: 3.25rem;
    padding-bottom: 3.25rem;
  }

  .section-shell {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .screen-grid {
    gap: 1.5rem;
  }

  .dense-grid {
    gap: 0.85rem;
  }

  .page-section .section-title + .section-lead,
  .page-section .section-lead.mt-3 {
    margin-top: 0.9rem;
  }

  .page-section > .section-shell > div:first-child {
    margin-bottom: 1.5rem;
  }

  #why-now,
  #problem,
  #platform,
  #capabilities,
  #industries,
  #architecture,
  #pilots {
    scroll-margin-top: 7.25rem;
  }

  .hero-bg.min-h-\[calc\(100vh-4rem\)\],
  .hero-bg {
    min-height: auto;
  }

  .hero-panel {
    max-height: none;
    overflow: visible;
  }

  /* Cards */
  .card,
  .soft-card,
  .visual-frame {
    border-radius: 1rem;
  }

  .card {
    box-shadow: 0 8px 22px rgba(15, 23, 32, 0.07);
  }

  .card.p-5,
  .card.p-6,
  .soft-card.p-5,
  .soft-card.p-4 {
    padding: 1rem !important;
  }

  .soft-card {
    background: color-mix(
      in srgb,
      var(--surface-secondary) 82%,
      var(--surface-primary)
    );
    border-color: var(--border-strong);
  }

  .chip {
    border-radius: 0.65rem;
  }

  .hover-lift:hover {
    transform: none;
  }

  /* Light-theme contrast */
  html[data-theme="light"] .card-copy,
  html[data-theme="light"] .supporting-copy {
    color: #506273;
  }

  html[data-theme="light"] .text-gray-400,
  html[data-theme="light"] .text-gray-600 {
    color: #596B7C !important;
  }

  html[data-theme="light"] .text-purple-100,
  html[data-theme="light"] .text-purple-200,
  html[data-theme="light"] .text-purple-300,
  html[data-theme="light"] .text-purple-400 {
    color: var(--accent-hover) !important;
  }

  html[data-theme="light"] .border-gray-700,
  html[data-theme="light"] .border-gray-800 {
    border-color: var(--border-strong) !important;
  }

  /* Why Now + Problem — spacing only */
  #why-now .problem-warning,
  #problem .problem-warning {
    margin-top: 1.25rem;
    padding: 1rem;
    border-radius: 1rem;
  }

  #why-now .problem-warning p,
  #problem .problem-warning p {
    line-height: 1.45;
  }

  #why-now .card,
  #problem .card {
    padding: 1rem !important;
  }

  #why-now .soft-card,
  #problem .problem-step {
    padding: 0.8rem !important;
  }

  #problem .problem-step {
    gap: 0.7rem;
    align-items: flex-start;
  }

  #problem .problem-num {
    min-width: 2rem;
    width: 2rem;
    height: 2rem;
    border-radius: 0.65rem;
  }

  #problem .chip {
    padding: 0.5rem 0.75rem;
  }

  /* Platform — spacing only */
  #platform .dense-grid {
    gap: 0.75rem;
  }

  #platform .soft-card {
    padding: 0.95rem !important;
  }

  #platform .soft-card .card-copy {
    margin-top: 0.4rem;
  }

  #platform .lg\:col-span-5.card {
    max-height: none;
    overflow: visible;
  }

  /* Capabilities — spacing / contrast only */
  #capabilities .grid {
    gap: 0.9rem;
  }

  #capabilities .card {
    padding: 1.1rem !important;
  }

  #capabilities .card .card-copy {
    margin-top: 0.75rem;
  }

  #capabilities .card .space-y-2 {
    margin-top: 1rem;
  }

  #capabilities .card .soft-card {
    padding: 0.7rem 0.85rem !important;
    border-radius: 0.75rem;
  }

  #capabilities > .section-shell > .soft-card {
    margin-top: 1rem;
    padding: 1rem !important;
  }

  #capabilities > .section-shell > .soft-card p:last-child {
    line-height: 1.5;
    color: var(--text-secondary);
  }

  html[data-theme="light"] #capabilities .text-cyan-300 {
    color: #0E7490 !important;
  }

  html[data-theme="light"] #capabilities .text-emerald-300 {
    color: #047857 !important;
  }

  html[data-theme="light"] #capabilities .border-cyan-500\/25 {
    border-color: rgba(14, 116, 144, 0.42) !important;
  }

  html[data-theme="light"] #capabilities .border-emerald-500\/25 {
    border-color: rgba(4, 120, 87, 0.38) !important;
  }

  /* Industries — spacing / contrast only */
  #industries .grid {
    gap: 0.85rem;
  }

  #industries .soft-card {
    padding: 1rem !important;
    min-height: 0;
  }

  #industries .card-copy {
    margin-top: 0.4rem;
  }

  #industries .usecase-line {
    margin-top: 0.7rem;
    letter-spacing: 0.07em;
    color: var(--accent-hover) !important;
    white-space: normal;
  }

  /* Pilots — layout only */
  #pilots .pilots-intro {
    text-align: left;
  }

  #pilots .pilot-journey {
    padding: 1rem;
  }

  #pilots .pilot-stages {
    display: flex;
    flex-direction: column;
    gap: 0;
    grid-template-columns: none;
  }

  #pilots .pilot-stage {
    width: 100%;
    padding: 1rem 0.5rem;
    position: relative;
  }

  #pilots .pilot-stage:last-child {
    grid-column: auto;
    justify-self: stretch;
    width: 100%;
  }

  /* Disable base absolute arrows; use flow arrows between stages */
  #pilots .pilot-stage:not(:last-child)::before,
  #pilots .pilot-stage:not(:last-child)::after {
    display: none;
  }

  #pilots .pilot-stage + .pilot-stage::before {
    content: "";
    width: 1px;
    height: 1.5rem;
    display: block;
    position: static;
    margin: -0.2rem auto 0.75rem;
    border-left: 1.5px dashed var(--accent-primary);
    border-top: none;
    left: auto;
    top: auto;
    transform: none;
    pointer-events: none;
  }

  #pilots .pilot-stage + .pilot-stage::after {
    content: "";
    width: 7px;
    height: 7px;
    display: block;
    position: static;
    margin: -0.95rem auto 0.7rem;
    border: none;
    border-right: 1.5px solid var(--accent-primary);
    border-bottom: 1.5px solid var(--accent-primary);
    left: auto;
    top: auto;
    transform: rotate(45deg);
    pointer-events: none;
  }

  #pilots .pilot-proof {
    align-items: flex-start;
    gap: 0.65rem;
  }

  #pilots .pilot-proof-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
  }

  #pilots .pilot-proof-item {
    padding: 0.5rem 0.65rem;
  }

  /* Contact — spacing only */
  #contact-form {
    padding-left: 0;
    padding-right: 0;
  }

  #contact-form input,
  #contact-form textarea {
    padding: 0.85rem;
  }
}

/* Industries: 2-col from 600–1023, 1-col below 600 */
@media (min-width: 600px) and (max-width: 1023px) {
  #industries .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 599px) {
  #industries .grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   Privacy Policy page
   ========================================================= */
.privacy-article {
  max-width: 52rem;
  margin: 0 auto;
  padding: 3.5rem 1rem 4.5rem;
  width: 100%;
}

.privacy-article h1 {
  color: var(--text-primary);
  font-size: clamp(1.8rem, 6vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 1rem;
}

.privacy-meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0 0 2.25rem;
}

.privacy-article h2 {
  color: var(--text-primary);
  font-size: clamp(1.15rem, 3.2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 2.35rem 0 0.85rem;
}

.privacy-article h3 {
  color: var(--text-primary);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 1.5rem 0 0.65rem;
}

.privacy-article p {
  color: var(--text-secondary);
  font-size: 0.97rem;
  line-height: 1.7;
  margin: 0 0 1rem;
  overflow-wrap: break-word;
}

.privacy-article ul {
  margin: 0 0 1.15rem;
  padding-left: 1.35rem;
}

.privacy-article li {
  color: var(--text-secondary);
  font-size: 0.97rem;
  line-height: 1.65;
  margin: 0 0 0.45rem;
  overflow-wrap: break-word;
}

.privacy-article li:last-child {
  margin-bottom: 0;
}

.privacy-article a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.privacy-article a:hover {
  color: var(--accent-hover);
}

.privacy-article a:focus-visible {
  outline: none;
  border-radius: 2px;
  box-shadow: var(--focus-ring);
}

.privacy-contact {
  color: var(--text-secondary);
}

.privacy-contact strong {
  color: var(--text-primary);
}

.form-sensitive-notice {
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.45;
  margin: 0.6rem 0 0;
  text-align: left;
}

.form-privacy-notice {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1.45;
  margin: 0;
  text-align: left;
}

.form-privacy-notice a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.form-privacy-notice a:hover {
  color: var(--accent-hover);
}

.form-privacy-notice a:focus-visible,
.footer-legal a:focus-visible {
  outline: none;
  border-radius: 2px;
  box-shadow: var(--focus-ring);
}

.footer-legal {
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.4;
  margin: 0.55rem 0 0;
}

.footer-legal a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.14em;
}

.footer-legal a:hover {
  color: var(--accent-primary);
}

/* --- Homepage discovery: AI Source Integrity --- */

.research-ribbon {
  display: block;
  width: 100%;
  text-decoration: none;
  color: var(--text-secondary);
  background: color-mix(in srgb, var(--accent-primary) 9%, var(--surface-primary));
  border-top: 1px solid color-mix(in srgb, var(--accent-primary) 22%, var(--border-primary));
  border-bottom: 1px solid color-mix(in srgb, var(--accent-primary) 28%, var(--border-primary));
  transition: background-color 0.2s ease;
}

.research-ribbon:hover {
  background: color-mix(in srgb, var(--accent-primary) 14%, var(--surface-primary));
  color: var(--text-primary);
}

.research-ribbon:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--accent-primary), var(--focus-ring);
}

header:has(.research-ribbon) {
  border-bottom-width: 0;
}

.research-ribbon__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.65rem;
  max-width: 76rem;
  margin: 0 auto;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  line-height: 1.35;
}

.research-ribbon__label {
  flex-shrink: 0;
  font-family: ui-monospace, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-primary);
  background: color-mix(in srgb, var(--accent-primary) 12%, var(--surface-primary));
  border: 1px solid color-mix(in srgb, var(--accent-primary) 35%, var(--border-primary));
  border-radius: 0.25rem;
  padding: 0.15rem 0.45rem;
}

.research-ribbon__copy {
  flex: 1 1 12rem;
  min-width: 0;
  color: var(--text-secondary);
}

.research-ribbon__copy strong,
.research-ribbon:hover .research-ribbon__copy {
  color: var(--text-primary);
}

.research-ribbon__cta {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--accent-primary);
  white-space: nowrap;
}

@media (min-width: 768px) {
  .research-ribbon__inner {
    flex-wrap: nowrap;
    padding: 0.45rem 1rem;
  }

  .research-ribbon__copy {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

@media (max-width: 767px) {
  .research-ribbon__inner {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0.25rem 0.5rem;
    padding: 0.45rem 0.85rem;
  }

  .research-ribbon__label {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
  }

  .research-ribbon__copy {
    grid-column: 2;
    grid-row: 1;
    font-size: 0.7rem;
  }

  .research-ribbon__cta {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: end;
    font-size: 0.72rem;
  }
}

.hero-bg.has-research-ribbon.min-h-\[calc\(100vh-4rem\)\] {
  min-height: calc(100vh - 4rem - 2.75rem);
}

/* Footer resources */
.footer-resources {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.65rem;
  margin: 0.55rem 0 0;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--text-muted);
}

.footer-resources__label {
  font-weight: 700;
  color: var(--text-secondary);
  margin-right: 0.15rem;
}

.footer-resources a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.14em;
  padding: 0.35rem 0.15rem;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.footer-resources a:hover {
  color: var(--accent-primary);
}

.footer-resources a:focus-visible {
  outline: none;
  border-radius: 2px;
  box-shadow: var(--focus-ring);
}

.footer-resources a:not(:last-child)::after {
  content: "·";
  margin-left: 0.65rem;
  text-decoration: none;
  color: var(--border-primary);
  pointer-events: none;
}

@media (max-width: 480px) {
  .footer-resources {
    flex-direction: column;
    gap: 0.15rem;
  }

  .footer-resources a:not(:last-child)::after {
    content: none;
  }

  .footer-resources a {
    min-height: 2.75rem;
    justify-content: center;
  }
}

@media (max-width: 1023px) {
  .privacy-article {
    padding-top: 3.25rem;
    padding-bottom: 3.5rem;
  }
}

@media (max-width: 480px) {
  .privacy-article {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .privacy-article h1 {
    overflow-wrap: break-word;
  }
}