:root,
body.theme-forge-dark,
body.theme-dark {
  --imt-navy: #1f2328;
  --imt-steel: #5b6670;
  --imt-light: #12161b;
  --imt-accent: #e85d04;
  --imt-border: #33404d;
  --site-bg-start: #0f1317;
  --site-bg-end: #1a222a;
  --site-text: #e7edf4;
  --site-text-strong: #ffffff;
  --site-link: #ff9a3c;
  --nav-bg: #13181e;
  --header-divider: rgba(91, 102, 112, 0.55);
  --nav-link: #f7fafc;
  --nav-link-hover: #ff9a3c;
  --logo-bg: #f8fafc;
  --hero-start: #1f2328;
  --hero-end: #3b4754;
  --hero-text: #ffffff;
  --surface-bg: #1b242d;
  --surface-alt-bg: #222d38;
  --surface-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
  --footer-bg: rgba(15, 19, 23, 0.94);
  --footer-text: #d6e0eb;
  --footer-link: #ffb067;
  --footer-shadow: 0 -6px 18px rgba(0, 0, 0, 0.3);
  --button-primary-bg: #e85d04;
  --button-primary-border: #cf4f00;
  --button-primary-hover-bg: #ff7a1f;
  --button-primary-hover-border: #e85d04;
}

body.theme-precision-blue,
body.theme-default {
  --imt-navy: #0b1f3a;
  --imt-steel: #1d4ed8;
  --imt-light: #f8fafc;
  --imt-accent: #2563eb;
  --imt-border: #c8d6ea;
  --site-bg-start: #f7faff;
  --site-bg-end: #eaf1fb;
  --site-text: #122033;
  --site-text-strong: #0b1f3a;
  --site-link: #1d4ed8;
  --nav-bg: #0b1f3a;
  --header-divider: rgba(148, 163, 184, 0.45);
  --nav-link: #f8fafc;
  --nav-link-hover: #bfdbfe;
  --logo-bg: #ffffff;
  --hero-start: #0b1f3a;
  --hero-end: #1d4ed8;
  --hero-text: #f8fafc;
  --surface-bg: #ffffff;
  --surface-alt-bg: #f3f7fd;
  --surface-shadow: 0 12px 30px rgba(11, 31, 58, 0.08);
  --footer-bg: rgba(255, 255, 255, 0.96);
  --footer-text: #43566f;
  --footer-link: #1d4ed8;
  --footer-shadow: 0 -6px 18px rgba(11, 31, 58, 0.05);
  --button-primary-bg: #1d4ed8;
  --button-primary-border: #1e40af;
  --button-primary-hover-bg: #2563eb;
  --button-primary-hover-border: #1d4ed8;
}

body.theme-steel-fire {
  --imt-navy: #2b2f33;
  --imt-steel: #4b5563;
  --imt-light: #f5f5f5;
  --imt-accent: #ff6a00;
  --imt-border: #cfd4da;
  --site-bg-start: #f7f7f8;
  --site-bg-end: #eceff2;
  --site-text: #1f2429;
  --site-text-strong: #111827;
  --site-link: #d35400;
  --nav-bg: #2b2f33;
  --header-divider: rgba(184, 189, 195, 0.55);
  --nav-link: #f8fafc;
  --nav-link-hover: #ffb074;
  --logo-bg: #ffffff;
  --hero-start: #2b2f33;
  --hero-end: #ff6a00;
  --hero-text: #ffffff;
  --surface-bg: #ffffff;
  --surface-alt-bg: #f8f9fb;
  --surface-shadow: 0 12px 30px rgba(43, 47, 51, 0.1);
  --footer-bg: rgba(255, 255, 255, 0.96);
  --footer-text: #4b5563;
  --footer-link: #d35400;
  --footer-shadow: 0 -6px 18px rgba(43, 47, 51, 0.05);
  --button-primary-bg: #ff6a00;
  --button-primary-border: #db5b00;
  --button-primary-hover-bg: #ff7d1f;
  --button-primary-hover-border: #ff6a00;
}

body.theme-clean-manufacturing {
  --imt-navy: #0f4c5c;
  --imt-steel: #334155;
  --imt-light: #ffffff;
  --imt-accent: #0f766e;
  --imt-border: #d1dae2;
  --site-bg-start: #f7fbfc;
  --site-bg-end: #edf4f7;
  --site-text: #1c2f3d;
  --site-text-strong: #0f4c5c;
  --site-link: #0f4c5c;
  --nav-bg: #0f4c5c;
  --header-divider: rgba(192, 199, 207, 0.55);
  --nav-link: #ffffff;
  --nav-link-hover: #c9f3ef;
  --logo-bg: #ffffff;
  --hero-start: #0f4c5c;
  --hero-end: #334155;
  --hero-text: #ffffff;
  --surface-bg: #ffffff;
  --surface-alt-bg: #f1f7f9;
  --surface-shadow: 0 12px 30px rgba(15, 76, 92, 0.08);
  --footer-bg: rgba(255, 255, 255, 0.96);
  --footer-text: #3d5366;
  --footer-link: #0f4c5c;
  --footer-shadow: 0 -6px 18px rgba(15, 76, 92, 0.05);
  --button-primary-bg: #0f766e;
  --button-primary-border: #0d5f58;
  --button-primary-hover-bg: #14847c;
  --button-primary-hover-border: #0f766e;
}

body.theme-heritage-industrial {
  --imt-navy: #3a3a3a;
  --imt-steel: #6b7280;
  --imt-light: #faf7f2;
  --imt-accent: #b08968;
  --imt-border: #d7c8b9;
  --site-bg-start: #faf7f2;
  --site-bg-end: #f2ece2;
  --site-text: #2f2b27;
  --site-text-strong: #1f1b18;
  --site-link: #7c3f1c;
  --nav-bg: #3a3a3a;
  --header-divider: rgba(176, 137, 104, 0.5);
  --nav-link: #fff8ee;
  --nav-link-hover: #ffd9b5;
  --logo-bg: #fffdf9;
  --hero-start: #3a3a3a;
  --hero-end: #b08968;
  --hero-text: #fff8ee;
  --surface-bg: #fffdf9;
  --surface-alt-bg: #f9f2e9;
  --surface-shadow: 0 12px 30px rgba(58, 58, 58, 0.09);
  --footer-bg: rgba(250, 247, 242, 0.96);
  --footer-text: #5b4f42;
  --footer-link: #7c3f1c;
  --footer-shadow: 0 -6px 18px rgba(58, 58, 58, 0.05);
  --button-primary-bg: #b08968;
  --button-primary-border: #9c7658;
  --button-primary-hover-bg: #c49a77;
  --button-primary-hover-border: #b08968;
}

body.theme-safety-contrast {
  --imt-navy: #111827;
  --imt-steel: #374151;
  --imt-light: #f9fafb;
  --imt-accent: #facc15;
  --imt-border: #d1d5db;
  --site-bg-start: #f9fafb;
  --site-bg-end: #eef1f4;
  --site-text: #111827;
  --site-text-strong: #030712;
  --site-link: #1f2937;
  --nav-bg: #111827;
  --header-divider: rgba(250, 204, 21, 0.45);
  --nav-link: #f9fafb;
  --nav-link-hover: #fde047;
  --logo-bg: #ffffff;
  --hero-start: #111827;
  --hero-end: #374151;
  --hero-text: #f9fafb;
  --surface-bg: #ffffff;
  --surface-alt-bg: #f3f4f6;
  --surface-shadow: 0 12px 30px rgba(17, 24, 39, 0.12);
  --footer-bg: rgba(255, 255, 255, 0.97);
  --footer-text: #374151;
  --footer-link: #1f2937;
  --footer-shadow: 0 -6px 18px rgba(17, 24, 39, 0.06);
  --button-primary-bg: #facc15;
  --button-primary-border: #eab308;
  --button-primary-hover-bg: #fde047;
  --button-primary-hover-border: #facc15;
}

body.theme-aerospace-spec {
  --imt-navy: #0a192f;
  --imt-steel: #7c8a99;
  --imt-light: #e6eef8;
  --imt-accent: #2563eb;
  --imt-border: #c8d5e5;
  --site-bg-start: #edf3fb;
  --site-bg-end: #e2ebf8;
  --site-text: #11233b;
  --site-text-strong: #0a192f;
  --site-link: #1d4ed8;
  --nav-bg: #0a192f;
  --header-divider: rgba(124, 138, 153, 0.45);
  --nav-link: #f4f8ff;
  --nav-link-hover: #9bc2ff;
  --logo-bg: #ffffff;
  --hero-start: #0a192f;
  --hero-end: #2563eb;
  --hero-text: #f4f8ff;
  --surface-bg: #ffffff;
  --surface-alt-bg: #f1f6fd;
  --surface-shadow: 0 12px 30px rgba(10, 25, 47, 0.1);
  --footer-bg: rgba(246, 250, 255, 0.96);
  --footer-text: #4a5f79;
  --footer-link: #1d4ed8;
  --footer-shadow: 0 -6px 18px rgba(10, 25, 47, 0.05);
  --button-primary-bg: #2563eb;
  --button-primary-border: #1d4ed8;
  --button-primary-hover-bg: #3b82f6;
  --button-primary-hover-border: #2563eb;
}

body.theme-earth-metal {
  --imt-navy: #3f4a3c;
  --imt-steel: #6b7280;
  --imt-light: #e7dfc6;
  --imt-accent: #b45309;
  --imt-border: #d2c7aa;
  --site-bg-start: #f6f1e4;
  --site-bg-end: #ece3ce;
  --site-text: #2f362e;
  --site-text-strong: #222921;
  --site-link: #8d4308;
  --nav-bg: #3f4a3c;
  --header-divider: rgba(180, 83, 9, 0.35);
  --nav-link: #f7f3e9;
  --nav-link-hover: #f2b17f;
  --logo-bg: #fffaf0;
  --hero-start: #3f4a3c;
  --hero-end: #b45309;
  --hero-text: #fff9ed;
  --surface-bg: #fffaf0;
  --surface-alt-bg: #f5ecd8;
  --surface-shadow: 0 12px 30px rgba(63, 74, 60, 0.1);
  --footer-bg: rgba(247, 241, 228, 0.95);
  --footer-text: #5a5f4f;
  --footer-link: #8d4308;
  --footer-shadow: 0 -6px 18px rgba(63, 74, 60, 0.06);
  --button-primary-bg: #b45309;
  --button-primary-border: #9a4608;
  --button-primary-hover-bg: #c96a20;
  --button-primary-hover-border: #b45309;
}

html {
  font-size: 16px;
  position: relative;
  min-height: 100%;
}

body {
  margin: 0;
  background: linear-gradient(180deg, var(--site-bg-start) 0%, var(--site-bg-end) 100%);
  color: var(--site-text);
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-content {
  flex: 1 0 auto;
  padding-top: 1.5rem;
}

.site-main {
  padding-bottom: 2rem;
}

a {
  color: var(--site-link);
}

.site-shell > header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: var(--nav-bg);
  border-bottom: 1px solid var(--header-divider);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.16);
}

.site-nav {
  margin-bottom: 0 !important;
  background-color: var(--nav-bg);
  box-shadow: none;
}

.site-nav .navbar-brand,
.site-nav .nav-link {
  color: var(--nav-link);
}

.site-logo {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
  background: var(--logo-bg);
  border-radius: 0.35rem;
  padding: 0.15rem;
}

.site-nav .nav-link:hover,
.site-nav .nav-link:focus {
  color: var(--nav-link-hover);
}

.theme-selector {
  min-width: 13.25rem;
  border-color: var(--imt-border);
  color: var(--site-text);
  background-color: var(--surface-bg);
}

.theme-selector:focus {
  border-color: var(--imt-accent);
  box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.15);
}

.hero {
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--hero-start), var(--hero-end));
  color: var(--hero-text);
}

.hero-grid {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.hero-panel img,
.media-card img,
.media-stack img,
.badge-image {
  width: 100%;
  display: block;
}

.hero-panel img,
.media-card img,
.media-stack img {
  border-radius: 0.75rem;
}

.hero-panel img {
  min-height: 18rem;
  object-fit: cover;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  opacity: 0.8;
  margin-bottom: 0.75rem;
}

.stats-row {
  display: grid;
  gap: 1rem;
}

.stat-card,
.section-slab,
.media-card {
  background: var(--surface-bg);
  border: 1px solid var(--imt-border);
  border-radius: 0.75rem;
  box-shadow: var(--surface-shadow);
}

.stat-card {
  padding: 1.25rem;
}

.stat-card strong {
  display: block;
  color: var(--site-text-strong);
  font-size: 1.6rem;
}

.section-slab {
  padding: 1.5rem;
}

.media-card {
  padding: 0.5rem;
}

.media-card-tight {
  padding: 0.4rem;
}

.media-stack {
  display: grid;
  gap: 1rem;
}

.feature-list {
  margin: 0;
  padding-left: 1.1rem;
}

.feature-list li + li {
  margin-top: 0.5rem;
}

.badge-image {
  max-width: 13rem;
  border-radius: 0.5rem;
}

.badge-image-small {
  max-width: 6rem;
}

.faq-grid {
  display: grid;
  gap: 1rem;
}

.faq-grid article {
  padding: 1rem;
  border: 1px solid var(--imt-border);
  border-radius: 0.75rem;
  background: var(--surface-alt-bg);
}

.cta-band {
  background: linear-gradient(135deg, var(--imt-steel), var(--imt-navy));
  color: var(--hero-text);
  border-radius: 0.75rem;
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

h1,
h2,
h3 {
  letter-spacing: 0.01em;
}

.footer {
  margin-top: 0;
  padding: 0.75rem 0 0.9rem;
  background: var(--footer-bg);
  border-top-color: var(--imt-border) !important;
  box-shadow: var(--footer-shadow);
  color: var(--footer-text);
  font-size: 0.9rem;
}

.footer.text-muted {
  color: var(--footer-text) !important;
}

.footer a {
  color: var(--footer-link);
}

.footer a:hover,
.footer a:focus {
  color: var(--nav-link-hover);
}

.btn-primary {
  color: #fff;
  background-color: var(--button-primary-bg);
  border-color: var(--button-primary-border);
}

body.theme-safety-contrast .btn-primary {
  color: #111827;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  color: #fff;
  background-color: var(--button-primary-hover-bg);
  border-color: var(--button-primary-hover-border);
}

body.theme-safety-contrast .btn-primary:hover,
body.theme-safety-contrast .btn-primary:focus,
body.theme-safety-contrast .btn-primary:active {
  color: #111827;
}

.footer-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
}

.footer-copy {
  margin-left: auto;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  }

  .stats-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .faq-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

}

@media (max-width: 991.98px) {
  .theme-selector {
    margin: 0.5rem 0;
    min-width: 100%;
  }
}

@media (max-width: 767.98px) {
  .cta-band {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bar {
    gap: 0.25rem 0.75rem;
    font-size: 0.85rem;
  }

  .footer-copy {
    margin-left: 0;
    width: 100%;
  }
}