/* ==========================================================================
   FreightDock Math - Modern Industrial Engineering Manual Design System
   Aesthetic: Clean, trustworthy, high-contrast, professional, zero AI-fluff
   Colors: Warm Paper (#F7F6F2), Ink Black (#18181B), Structural Borders (#D4D4D8),
           Safety Orange (#EA580C), Deep Logistics Navy (#1E3A8A)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bg-warm-paper: #F7F6F2;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F0EFEA;
  --bg-tint-navy: #EEF2F6;
  --bg-tint-orange: #FFF7ED;

  --text-ink: #18181B;
  --text-muted: #52525B;
  --text-subtle: #71717A;
  --text-inverse: #FFFFFF;

  --border-structural: #D4D4D8;
  --border-subtle: #E4E4E7;
  --border-strong: #18181B;

  --accent-orange: #EA580C;
  --accent-orange-hover: #C2410C;
  --accent-navy: #1E3A8A;
  --accent-navy-hover: #172554;
  --accent-green: #15803D;
  --accent-green-bg: #F0FDF4;
  --accent-amber: #B45309;
  --accent-amber-bg: #FFFBEB;
  --accent-red: #DC2626;
  --accent-red-bg: #FEF2F2;

  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', Menlo, Consolas, Courier, monospace;

  --radius-sharp: 2px;
  --radius-card: 4px;
  --shadow-industrial: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-active: 0 4px 6px -1px rgba(0, 0, 0, 0.08);

  --container-max: 1240px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-warm-paper);
  color: var(--text-ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   TYPOGRAPHY
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-ink);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: 1.85rem; }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent-navy);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-orange);
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 2px solid var(--border-strong);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.top-compliance-bar {
  background-color: var(--text-ink);
  color: #E4E4E7;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding: 4px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #3F3F46;
}

.compliance-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 7px;
  height: 7px;
  background-color: #22C55E;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 6px #22C55E;
}

.compliance-links {
  display: flex;
  gap: 16px;
}

.compliance-links a {
  color: #A1A1AA;
  text-decoration: none;
}

.compliance-links a:hover {
  color: var(--text-inverse);
  text-decoration: underline;
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-ink);
}

.header-logo-icon {
  width: 36px;
  height: 36px;
  background-color: var(--text-ink);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sharp);
  border: 1px solid var(--accent-orange);
}

.header-brand-text h1,
.header-brand-text .brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-brand-text .domain-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-orange);
  font-weight: 600;
  background: var(--bg-tint-orange);
  padding: 1px 4px;
  border: 1px solid rgba(234, 88, 12, 0.3);
  border-radius: 2px;
}

.header-brand-text p {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.header-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.header-nav-links a {
  color: var(--text-ink);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  padding: 6px 10px;
  border-radius: var(--radius-sharp);
  border: 1px solid transparent;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.header-nav-links a:hover,
.header-nav-links a.active {
  background-color: var(--bg-subtle);
  border-color: var(--border-structural);
  color: var(--accent-orange);
}

.header-nav-links a.active {
  border-bottom: 2px solid var(--accent-orange);
  color: var(--accent-navy);
}

.nav-toggle-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-structural);
  padding: 6px 10px;
  border-radius: var(--radius-sharp);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   LAYOUT CONTAINERS
   -------------------------------------------------------------------------- */
.main-wrapper {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 18px 20px 48px;
}

/* Breadcrumb Strip */
.breadcrumb-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-subtle);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-structural);
}

.breadcrumb-bar a {
  color: var(--text-muted);
  text-decoration: none;
}

.breadcrumb-bar a:hover {
  color: var(--accent-orange);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--border-structural);
}

/* --------------------------------------------------------------------------
   PAGE SECTION: TOP 35% CALCULATOR ZONE (IMMEDIATE ABOVE-THE-FOLD)
   -------------------------------------------------------------------------- */
.calculator-header-strip {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.calc-title-box h1 {
  font-size: 1.65rem;
  letter-spacing: -0.03em;
  color: var(--text-ink);
  margin-bottom: 4px;
}

.calc-title-box p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
  max-width: 780px;
}

.calc-quick-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sharp);
  cursor: pointer;
  border: 1px solid var(--border-strong);
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-orange);
  color: #FFFFFF;
  border-color: var(--accent-orange-hover);
}

.btn-primary:hover {
  background-color: var(--accent-orange-hover);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-ink);
  border-color: var(--border-structural);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-strong);
}

.btn-navy {
  background-color: var(--accent-navy);
  color: #FFFFFF;
  border-color: var(--accent-navy-hover);
}

.btn-navy:hover {
  background-color: var(--accent-navy-hover);
  color: #FFFFFF;
}

.btn-sm {
  padding: 5px 9px;
  font-size: 0.75rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
}

.badge-safety {
  background-color: var(--bg-tint-orange);
  color: var(--accent-orange);
  border-color: rgba(234, 88, 12, 0.35);
}

.badge-navy {
  background-color: var(--bg-tint-navy);
  color: var(--accent-navy);
  border-color: rgba(30, 58, 138, 0.3);
}

.badge-green {
  background-color: var(--accent-green-bg);
  color: var(--accent-green);
  border-color: rgba(21, 128, 61, 0.3);
}

.badge-red {
  background-color: var(--accent-red-bg);
  color: var(--accent-red);
  border-color: rgba(220, 38, 38, 0.3);
}

.badge-neutral {
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border-color: var(--border-structural);
}

/* --------------------------------------------------------------------------
   TWO-COLUMN HYBRID APPARATUS GRID (Calculator + Sticky Ad/Audit Sidebar)
   -------------------------------------------------------------------------- */
.calculator-apparatus-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 20px;
  align-items: start;
  margin-bottom: 24px;
}

@media (max-width: 980px) {
  .calculator-apparatus-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   AD SLOTS (Strict AdSense Compliant, Zero Clutter)
   -------------------------------------------------------------------------- */
.ad-slot {
  background-color: #FAFAF9;
  border: 1px dashed var(--border-structural);
  border-radius: var(--radius-sharp);
  padding: 12px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 18px 0;
}

.ad-slot::before {
  content: "ADVERTISEMENT // B2B FREIGHT SERVICES";
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #A1A1AA;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-align: center;
}

.ad-slot-placeholder {
  min-height: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 12px;
  color: var(--text-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.ad-slot[data-ad-position="sidebar-sticky"] {
  position: sticky;
  top: 76px;
  margin-top: 0;
}

.ad-slot[data-ad-position="sidebar-sticky"] .ad-slot-placeholder {
  min-height: 250px;
}

/* --------------------------------------------------------------------------
   PAGE SECTION: BOTTOM 65% HUMAN-ENGINEERED FIELD MANUAL
   -------------------------------------------------------------------------- */
.field-manual-section {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-structural);
  border-top: 4px solid var(--border-strong);
  border-radius: var(--radius-card);
  padding: 36px 40px;
  margin-top: 32px;
  box-shadow: var(--shadow-industrial);
}

.field-manual-header {
  border-bottom: 2px solid var(--border-subtle);
  padding-bottom: 18px;
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
}

.field-manual-header h2 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.field-manual-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* GEO Citation Capsule (Critical for AI Engine scraping and direct answers) */
.geo-citation-capsule {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-structural);
  border-left: 4px solid var(--accent-orange);
  border-radius: var(--radius-sharp);
  padding: 20px 24px;
  margin-bottom: 28px;
}

.geo-citation-capsule .capsule-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-orange);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.geo-citation-capsule h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.geo-citation-capsule p {
  font-size: 0.92rem;
  margin-bottom: 12px;
  color: var(--text-ink);
}

.geo-formula-block {
  background-color: var(--text-ink);
  color: #F4F4F5;
  font-family: var(--font-mono);
  padding: 12px 16px;
  border-radius: var(--radius-sharp);
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
  border-left: 3px solid var(--accent-orange);
}

.geo-citation-capsule .worked-capsule-summary {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background-color: #FFFFFF;
  padding: 10px 14px;
  border: 1px solid var(--border-structural);
  border-radius: 2px;
}

/* Field Manual Body Formatting */
.manual-content {
  font-size: 0.96rem;
  line-height: 1.7;
  color: #27272A;
}

.manual-content h2,
.manual-content h3 {
  font-size: 1.28rem;
  margin-top: 32px;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

.manual-content h3.subsection-title,
.manual-content h4 {
  font-size: 1.08rem;
  margin-top: 22px;
  margin-bottom: 8px;
  color: var(--accent-navy);
}

.manual-content p {
  margin-bottom: 16px;
}

.manual-content ul, 
.manual-content ol {
  margin-bottom: 18px;
  padding-left: 24px;
}

.manual-content li {
  margin-bottom: 8px;
}

/* Callout Box */
.callout-box {
  padding: 18px 20px;
  border-radius: var(--radius-sharp);
  margin: 22px 0;
  border: 1px solid var(--border-structural);
}

.callout-warning {
  background-color: var(--accent-amber-bg);
  border-color: rgba(180, 83, 9, 0.35);
  border-left: 4px solid var(--accent-amber);
}

.callout-warning h4 {
  color: var(--accent-amber);
  margin-top: 0;
}

.callout-navy {
  background-color: var(--bg-tint-navy);
  border-color: rgba(30, 58, 138, 0.3);
  border-left: 4px solid var(--accent-navy);
}

.callout-navy h4 {
  color: var(--accent-navy);
  margin-top: 0;
}

/* Technical Tables */
.tech-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-sharp);
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.tech-table th {
  background-color: var(--bg-subtle);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-ink);
  padding: 10px 14px;
  border-bottom: 2px solid var(--border-structural);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tech-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.tech-table tbody tr:hover {
  background-color: #FAFAF9;
}

.tech-table code {
  background-color: var(--bg-subtle);
  padding: 2px 5px;
  border-radius: 2px;
  font-size: 0.82rem;
}

/* Worked Step Box */
.step-sequence {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 20px 0;
}

.step-card {
  display: flex;
  gap: 16px;
  background-color: #FAFAF9;
  border: 1px solid var(--border-structural);
  padding: 16px 20px;
  border-radius: var(--radius-sharp);
}

.step-number {
  width: 32px;
  height: 32px;
  background-color: var(--accent-navy);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  flex-shrink: 0;
}

.step-content h4 {
  margin: 0 0 6px 0;
  font-size: 1.02rem;
}

.step-content p {
  margin: 0 0 6px 0;
  font-size: 0.92rem;
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--text-ink);
  color: #A1A1AA;
  border-top: 3px solid var(--accent-orange);
  padding: 48px 20px 24px;
  margin-top: 64px;
  font-size: 0.85rem;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 540px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h4,
.footer-col .footer-col-title {
  color: #F4F4F5;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
  font-weight: 700;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #D4D4D8;
  text-decoration: none;
  font-size: 0.84rem;
}

.footer-links a:hover {
  color: var(--accent-orange);
  text-decoration: underline;
}

.footer-disclaimer-box {
  background-color: #27272A;
  border: 1px solid #3F3F46;
  padding: 16px 20px;
  border-radius: var(--radius-sharp);
  margin-bottom: 24px;
  font-size: 0.78rem;
  line-height: 1.5;
  color: #A1A1AA;
}

.footer-bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid #3F3F46;
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

/* --------------------------------------------------------------------------
   BOL PRINT MODAL & OFFICIAL PRINT SLIP
   -------------------------------------------------------------------------- */
.bol-modal {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(24, 24, 27, 0.75);
  backdrop-filter: blur(2px);
  z-index: 1000;
  overflow-y: auto;
  padding: 24px 16px;
}

.bol-modal.open {
  display: flex;
  align-items: center;
  justify-content: center;
}

.bol-modal-dialog {
  background-color: #FFFFFF;
  max-width: 860px;
  width: 100%;
  border-radius: var(--radius-card);
  border: 2px solid var(--border-strong);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  position: relative;
}

.bol-modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-structural);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-subtle);
}

.bol-document-sheet {
  padding: 32px 36px;
  color: #000000;
  font-family: var(--font-body);
}

.bol-doc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 3px solid #000000;
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.bol-brand h2 {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}

.bol-brand p {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.bol-ref-block {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: flex;
  gap: 18px;
}

.bol-badge-box {
  text-align: right;
}

.bol-class-box {
  border: 2px solid #000000;
  padding: 8px 14px;
  background-color: #FAFAF9;
  text-align: center;
}

.bol-class-box .lbl {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.bol-class-box .val {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-navy);
}

.bol-class-box .sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-orange);
  font-weight: 600;
}

.bol-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.bol-table th {
  background-color: #F4F4F5;
  border: 1px solid #000000;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: left;
}

.bol-table td {
  border: 1px solid #000000;
  padding: 8px 10px;
  font-size: 0.86rem;
}

.bol-notes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.bol-note-card {
  border: 1px solid #D4D4D8;
  padding: 12px 14px;
  font-size: 0.8rem;
  background-color: #FAFAF9;
}

.bol-note-card h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-bottom: 6px;
  color: #18181B;
}

.bol-note-card p {
  font-size: 0.78rem;
  line-height: 1.45;
  margin: 0 0 8px;
}

.bol-meta-list {
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.bol-signatures {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px dashed #A1A1AA;
}

.bol-sig-box {
  font-size: 0.76rem;
}

.bol-sig-box .sig-title {
  font-family: var(--font-mono);
  font-weight: 700;
  display: block;
  margin-bottom: 4px;
}

.bol-sig-box p {
  font-size: 0.72rem;
  color: #52525B;
  margin-bottom: 24px;
}

.bol-sig-box .sig-line {
  border-top: 1px solid #000000;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  display: flex;
  justify-content: space-between;
}

.bol-doc-footer {
  margin-top: 20px;
  padding-top: 10px;
  border-top: 1px solid #E4E4E7;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #71717A;
  text-align: center;
}

/* Toast */
.fdm-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--text-ink);
  color: #FFFFFF;
  padding: 10px 18px;
  border-radius: var(--radius-sharp);
  border: 1px solid var(--accent-orange);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: all 0.25s ease;
  z-index: 2000;
}

.fdm-toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .nav-toggle-btn {
    display: inline-block;
  }
  .header-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 2px solid var(--border-strong);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  }
  .header-nav-links.open {
    display: flex;
  }
  .top-compliance-bar {
    display: none;
  }
  .field-manual-section {
    padding: 24px 20px;
  }
}

/* --------------------------------------------------------------------------
   PRINT OPTIMIZATION
   -------------------------------------------------------------------------- */
@media print {
  body {
    background-color: #FFFFFF;
    color: #000000;
  }
  .site-header,
  .top-compliance-bar,
  .site-footer,
  .no-print,
  .ad-slot,
  .calc-quick-actions,
  .field-manual-section,
  .calculator-apparatus-grid {
    display: none !important;
  }
  .bol-modal {
    display: block !important;
    position: static !important;
    background: none !important;
    padding: 0 !important;
  }
  .bol-modal-dialog {
    box-shadow: none !important;
    border: none !important;
    max-width: 100% !important;
  }
  .bol-document-sheet {
    padding: 0 !important;
  }
}