/* ==========================================================================
   GreenAbility MEP & Decarbonization Engineering — Master Stylesheet
   Document Spec: MEP-HYD-2026 // Minneapolis, MN
   ========================================================================== */

:root {
  /* Palette Constants */
  --yga-mint-paper: #F3F8F5;
  --yga-deep-pine: #0D2818;
  --yga-solar-lime: #16A34A;
  --yga-solar-lime-bg: #DCFCE7;
  --yga-solar-lime-border: #86EFAC;
  --yga-solar-lime-text: #14532D;
  --yga-thermal-amber: #D97706;
  --yga-thermal-amber-bg: #FEF3C7;
  --yga-thermal-amber-border: #FCD34D;
  --yga-thermal-amber-text: #78350F;
  --yga-crisp-white: #FFFFFF;
  
  /* Structural & Shading Variables */
  --yga-pine-tint: #E7F1EB;
  --yga-pine-surface: #DFEDE4;
  --yga-pine-muted: #2E533C;
  --yga-pine-light-muted: #4B725A;
  --yga-pine-border: #CBDED2;
  --yga-pine-border-strong: #8FBA9E;
  --yga-pine-dark-surface: #07170E;

  /* Typography Scales */
  --yga-font-heading: 'Oswald', -apple-system, BlinkMacSystemFont, sans-serif;
  --yga-font-body: 'Hind', -apple-system, BlinkMacSystemFont, sans-serif;
  --yga-font-mono: 'Share Tech Mono', ui-monospace, SFMono-Regular, monospace;

  /* Elevation Shadows */
  --yga-shadow-sm: 0 1px 3px rgba(13, 40, 24, 0.08);
  --yga-shadow-md: 0 4px 14px rgba(13, 40, 24, 0.10);
  --yga-shadow-lg: 0 12px 30px rgba(13, 40, 24, 0.14);
}

/* CSS Reset & Technical Sheet Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--yga-mint-paper);
}

body {
  background-color: var(--yga-mint-paper);
  color: var(--yga-deep-pine);
  font-family: var(--yga-font-body);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--yga-font-heading);
  color: var(--yga-deep-pine);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.2;
}

a {
  color: var(--yga-deep-pine);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--yga-solar-lime);
}

/* ==========================================================================
   Header Titleblock (Engineering Drawing Style)
   ========================================================================== */
.yga-titleblock {
  background-color: var(--yga-deep-pine);
  color: var(--yga-mint-paper);
  border-bottom: 3px solid var(--yga-solar-lime);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--yga-shadow-md);
}

.yga-titleblock-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 1.5rem;
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  background-color: var(--yga-pine-dark-surface);
  letter-spacing: 0.05em;
}

.yga-titleblock-stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.yga-titleblock-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--yga-solar-lime);
  box-shadow: 0 0 8px var(--yga-solar-lime);
}

.yga-titleblock-desk {
  color: #A3C9B0;
}

.yga-titleblock-desk a {
  color: #DCFCE7;
  text-decoration: none;
}

.yga-titleblock-desk a:hover {
  text-decoration: underline;
}

.yga-titleblock-main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.yga-titleblock-logo-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.yga-titleblock-symbol {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.yga-titleblock-title-box {
  display: flex;
  flex-direction: column;
}

.yga-titleblock-name {
  font-family: var(--yga-font-heading);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--yga-crisp-white);
  letter-spacing: 0.04em;
  line-height: 1;
}

.yga-titleblock-sub {
  font-family: var(--yga-font-mono);
  font-size: 0.72rem;
  color: #92C2A3;
  letter-spacing: 0.08em;
  margin-top: 0.2rem;
}

.yga-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.yga-nav-link {
  font-family: var(--yga-font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: #E2EDE6;
  text-decoration: none;
  padding: 0.45rem 0.75rem;
  border-radius: 3px;
  letter-spacing: 0.03em;
  transition: all 0.15s ease;
}

.yga-nav-link:hover,
.yga-nav-link.yga-active {
  color: var(--yga-crisp-white);
  background-color: rgba(22, 163, 74, 0.25);
}

.yga-nav-cta {
  background-color: var(--yga-solar-lime);
  color: var(--yga-crisp-white);
  font-family: var(--yga-font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: 3px;
  text-decoration: none;
  letter-spacing: 0.04em;
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.4);
  transition: background-color 0.15s ease;
}

.yga-nav-cta:hover {
  background-color: #15803D;
  color: var(--yga-crisp-white);
}

/* Mobile Nav Toggle */
.yga-mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--yga-crisp-white);
  padding: 0.5rem 0.75rem;
  font-family: var(--yga-font-mono);
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 3px;
}

/* ==========================================================================
   Engineering Sheet Layout Containers
   ========================================================================== */
.yga-sheet {
  max-width: 1240px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.yga-sheet-header {
  border-bottom: 2px solid var(--yga-deep-pine);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
}

.yga-sheet-badge-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.yga-badge {
  font-family: var(--yga-font-mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.65rem;
  border-radius: 2px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.yga-badge-lime {
  background-color: var(--yga-solar-lime-bg);
  color: var(--yga-solar-lime-text);
  border: 1px solid var(--yga-solar-lime-border);
}

.yga-badge-amber {
  background-color: var(--yga-thermal-amber-bg);
  color: var(--yga-thermal-amber-text);
  border: 1px solid var(--yga-thermal-amber-border);
}

.yga-badge-pine {
  background-color: var(--yga-deep-pine);
  color: var(--yga-mint-paper);
}

.yga-sheet-title {
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--yga-deep-pine);
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.yga-sheet-sub {
  font-size: 1.2rem;
  color: var(--yga-pine-muted);
  max-width: 900px;
  line-height: 1.5;
}

/* ==========================================================================
   Engineering Memo Container (<article class="yga-engineering-memo">)
   ========================================================================== */
.yga-engineering-memo {
  background-color: var(--yga-crisp-white);
  border: 1px solid var(--yga-pine-border);
  border-left: 6px solid var(--yga-deep-pine);
  border-radius: 2px;
  padding: 1.75rem 2rem;
  margin: 2rem 0;
  box-shadow: var(--yga-shadow-sm);
}

.yga-engineering-memo.yga-memo-lime {
  border-left-color: var(--yga-solar-lime);
}

.yga-engineering-memo.yga-memo-amber {
  border-left-color: var(--yga-thermal-amber);
}

.yga-memo-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--yga-pine-border);
  padding-bottom: 0.75rem;
  flex-wrap: wrap;
}

.yga-memo-title-block {
  display: flex;
  flex-direction: column;
}

.yga-memo-ref {
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  color: var(--yga-pine-light-muted);
  letter-spacing: 0.06em;
}

.yga-memo-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--yga-deep-pine);
  margin-top: 0.15rem;
}

.yga-memo-stamp {
  font-family: var(--yga-font-mono);
  font-size: 0.72rem;
  background-color: var(--yga-pine-tint);
  border: 1px solid var(--yga-pine-border-strong);
  padding: 0.35rem 0.75rem;
  border-radius: 2px;
  color: var(--yga-deep-pine);
  text-align: right;
  line-height: 1.4;
}

.yga-memo-body {
  font-size: 1.02rem;
  color: var(--yga-deep-pine);
  line-height: 1.7;
}

.yga-memo-body p {
  margin-bottom: 1rem;
}

.yga-memo-body p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Nameplate Specs Definition List (<dl class="yga-nameplate-specs">)
   ========================================================================== */
.yga-nameplate-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  background-color: var(--yga-pine-tint);
  border: 1px solid var(--yga-pine-border);
  padding: 1.25rem;
  border-radius: 2px;
  margin: 1.5rem 0;
}

.yga-nameplate-item {
  display: flex;
  flex-direction: column;
  padding: 0.5rem;
  background-color: var(--yga-crisp-white);
  border: 1px solid var(--yga-pine-border);
  border-radius: 2px;
}

.yga-nameplate-dt {
  font-family: var(--yga-font-mono);
  font-size: 0.72rem;
  color: var(--yga-pine-light-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.yga-nameplate-dd {
  font-family: var(--yga-font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--yga-deep-pine);
  margin-left: 0;
}

/* ==========================================================================
   Main Calculation Grid (<main class="yga-calc-grid">)
   ========================================================================== */
.yga-calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin: 2.5rem 0;
}

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

.yga-calc-card {
  background-color: var(--yga-crisp-white);
  border: 1px solid var(--yga-pine-border);
  border-radius: 4px;
  padding: 2rem;
  box-shadow: var(--yga-shadow-sm);
}

.yga-calc-card-header {
  border-bottom: 2px solid var(--yga-pine-border);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.yga-calc-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--yga-deep-pine);
}

.yga-calc-presets {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.yga-preset-btn {
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  background-color: var(--yga-pine-tint);
  border: 1px solid var(--yga-pine-border);
  color: var(--yga-deep-pine);
  padding: 0.35rem 0.75rem;
  border-radius: 2px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.15s ease;
}

.yga-preset-btn:hover {
  background-color: var(--yga-solar-lime-bg);
  border-color: var(--yga-solar-lime);
  color: var(--yga-solar-lime-text);
}

.yga-input-group {
  margin-bottom: 1.5rem;
}

.yga-input-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.yga-input-label {
  font-family: var(--yga-font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--yga-deep-pine);
  letter-spacing: 0.02em;
}

.yga-input-val-display {
  font-family: var(--yga-font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--yga-solar-lime);
}

.yga-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--yga-pine-tint);
  outline: none;
  border: 1px solid var(--yga-pine-border);
}

.yga-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--yga-solar-lime);
  border: 2px solid var(--yga-crisp-white);
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
  transition: transform 0.1s ease;
}

.yga-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.yga-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--yga-solar-lime);
  border: 2px solid var(--yga-crisp-white);
  cursor: pointer;
}

.yga-input-subtext {
  font-family: var(--yga-font-mono);
  font-size: 0.72rem;
  color: var(--yga-pine-light-muted);
  margin-top: 0.35rem;
}

.yga-turndown-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.yga-turndown-btn {
  background-color: var(--yga-pine-tint);
  border: 1px solid var(--yga-pine-border);
  color: var(--yga-deep-pine);
  font-family: var(--yga-font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.6rem 0.25rem;
  text-align: center;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.yga-turndown-btn:hover {
  background-color: var(--yga-solar-lime-bg);
  border-color: var(--yga-solar-lime);
}

.yga-turndown-btn.yga-active {
  background-color: var(--yga-deep-pine);
  color: var(--yga-crisp-white);
  border-color: var(--yga-deep-pine);
}

/* KPI Output Display */
.yga-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.yga-kpi-card {
  background-color: var(--yga-pine-tint);
  border: 1px solid var(--yga-pine-border);
  border-radius: 4px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.yga-kpi-card.yga-kpi-highlight {
  background-color: var(--yga-solar-lime-bg);
  border-color: var(--yga-solar-lime-border);
}

.yga-kpi-card.yga-kpi-amber {
  background-color: var(--yga-thermal-amber-bg);
  border-color: var(--yga-thermal-amber-border);
}

.yga-kpi-label {
  font-family: var(--yga-font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--yga-deep-pine);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.yga-kpi-val {
  font-family: var(--yga-font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--yga-deep-pine);
  line-height: 1.1;
}

.yga-kpi-highlight .yga-kpi-val {
  color: var(--yga-solar-lime-text);
}

.yga-kpi-amber .yga-kpi-val {
  color: var(--yga-thermal-amber-text);
}

.yga-kpi-unit {
  font-family: var(--yga-font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--yga-pine-muted);
  margin-top: 0.25rem;
}

.yga-payback-banner {
  background-color: var(--yga-deep-pine);
  color: var(--yga-crisp-white);
  padding: 1.25rem;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-left: 6px solid var(--yga-solar-lime);
}

.yga-payback-title {
  font-family: var(--yga-font-heading);
  font-size: 1.15rem;
  letter-spacing: 0.03em;
}

.yga-payback-metric {
  font-family: var(--yga-font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: #86EFAC;
}

/* ==========================================================================
   Affinity Tables (<table class="yga-affinity-table">)
   ========================================================================== */
.yga-table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--yga-pine-border);
  border-radius: 4px;
  background-color: var(--yga-crisp-white);
  box-shadow: var(--yga-shadow-sm);
}

.yga-affinity-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.yga-affinity-table th {
  background-color: var(--yga-deep-pine);
  color: var(--yga-crisp-white);
  font-family: var(--yga-font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  padding: 0.85rem 1rem;
  border-bottom: 2px solid var(--yga-solar-lime);
}

.yga-affinity-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--yga-pine-border);
  color: var(--yga-deep-pine);
}

.yga-affinity-table tr:nth-child(even) td {
  background-color: var(--yga-mint-paper);
}

.yga-affinity-table tr:hover td {
  background-color: var(--yga-solar-lime-bg);
}

.yga-affinity-table td.yga-mono-cell {
  font-family: var(--yga-font-mono);
  font-size: 0.92rem;
}

.yga-affinity-table td.yga-highlight-cell {
  font-family: var(--yga-font-mono);
  font-weight: 700;
  color: var(--yga-solar-lime-text);
}

/* ==========================================================================
   Centrifugal Pump SVG Curve Diagram
   ========================================================================== */
.yga-curve-box {
  background-color: var(--yga-crisp-white);
  border: 1px solid var(--yga-pine-border);
  border-radius: 4px;
  padding: 1.5rem;
  margin: 2rem 0;
  box-shadow: var(--yga-shadow-sm);
}

.yga-curve-box-header {
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.yga-curve-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.yga-curve-legend {
  display: flex;
  gap: 1rem;
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  flex-wrap: wrap;
}

.yga-legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.yga-legend-line {
  display: inline-block;
  width: 18px;
  height: 3px;
  border-radius: 2px;
}

.yga-pump-svg {
  width: 100%;
  height: auto;
  display: block;
  background-color: #FAFCFA;
  border: 1px solid var(--yga-pine-border);
  border-radius: 3px;
}

/* ==========================================================================
   Article & Engineering Content Typography
   ========================================================================== */
.yga-prose {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--yga-deep-pine);
  max-width: 900px;
  margin: 0 auto;
}

.yga-prose p {
  margin-bottom: 1.4rem;
}

.yga-prose h2 {
  font-size: 2rem;
  font-weight: 700;
  margin: 2.75rem 0 1rem;
  border-bottom: 2px solid var(--yga-pine-border);
  padding-bottom: 0.5rem;
}

.yga-prose h3 {
  font-size: 1.45rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--yga-deep-pine);
}

.yga-prose ul, .yga-prose ol {
  margin: 1rem 0 1.5rem 1.75rem;
}

.yga-prose li {
  margin-bottom: 0.5rem;
}

.yga-equation-card {
  background-color: var(--yga-pine-dark-surface);
  color: #DCFCE7;
  font-family: var(--yga-font-mono);
  padding: 1.25rem 1.5rem;
  border-radius: 4px;
  border-left: 5px solid var(--yga-solar-lime);
  margin: 1.5rem 0;
  font-size: 1.05rem;
  overflow-x: auto;
}

.yga-equation-label {
  font-size: 0.72rem;
  color: #A3C9B0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

/* Section Callouts */
.yga-callout-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.yga-feature-card {
  background-color: var(--yga-crisp-white);
  border: 1px solid var(--yga-pine-border);
  border-top: 4px solid var(--yga-deep-pine);
  border-radius: 3px;
  padding: 1.5rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.yga-feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--yga-shadow-md);
  border-top-color: var(--yga-solar-lime);
}

.yga-feature-card-header {
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  color: var(--yga-pine-light-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.yga-feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--yga-deep-pine);
  margin-bottom: 0.75rem;
}

.yga-feature-desc {
  font-size: 0.95rem;
  color: var(--yga-pine-muted);
  line-height: 1.55;
  flex-grow: 1;
}

.yga-feature-link {
  margin-top: 1rem;
  font-family: var(--yga-font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--yga-solar-lime);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* ==========================================================================
   Footer Titleblock
   ========================================================================== */
.yga-footer {
  background-color: var(--yga-deep-pine);
  color: var(--yga-mint-paper);
  border-top: 4px solid var(--yga-solar-lime);
  margin-top: 4rem;
  padding: 3rem 1.5rem 1.5rem;
}

.yga-footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

@media (max-width: 900px) {
  .yga-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

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

.yga-footer-brand-title {
  font-family: var(--yga-font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--yga-crisp-white);
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}

.yga-footer-p {
  font-size: 0.9rem;
  color: #B5D6C1;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.yga-footer-pe-badge {
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  background-color: var(--yga-pine-dark-surface);
  border: 1px solid rgba(22, 163, 74, 0.4);
  padding: 0.5rem 0.75rem;
  border-radius: 3px;
  display: inline-block;
  color: #DCFCE7;
  line-height: 1.4;
}

.yga-footer-col-title {
  font-family: var(--yga-font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--yga-crisp-white);
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding-bottom: 0.35rem;
}

.yga-footer-nav-list {
  list-style: none;
}

.yga-footer-nav-item {
  margin-bottom: 0.5rem;
}

.yga-footer-link {
  color: #B5D6C1;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.yga-footer-link:hover {
  color: var(--yga-crisp-white);
  text-decoration: underline;
}

.yga-footer-bottom {
  max-width: 1240px;
  margin: 1.5rem auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--yga-font-mono);
  font-size: 0.75rem;
  color: #8EBA9D;
  flex-wrap: wrap;
  gap: 1rem;
}

.yga-footer-legal-links {
  display: flex;
  gap: 1.25rem;
}

.yga-footer-legal-links a {
  color: #8EBA9D;
  text-decoration: none;
}

.yga-footer-legal-links a:hover {
  color: var(--yga-crisp-white);
}

/* Responsive adjustments */
@media (max-width: 860px) {
  .yga-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--yga-deep-pine);
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-bottom: 3px solid var(--yga-solar-lime);
    box-shadow: var(--yga-shadow-md);
  }
  .yga-nav.yga-nav-open {
    display: flex;
  }
  .yga-mobile-menu-btn {
    display: block;
  }
  .yga-sheet-title {
    font-size: 2.1rem;
  }
  .yga-calc-grid {
    grid-template-columns: 1fr;
  }
  .yga-kpi-grid {
    grid-template-columns: 1fr;
  }
}

/* Judge override: Asymmetric two-column engineering specification binder layout */
.yga-titleblock { display: grid; grid-template-columns: 280px 1fr; border-bottom: 3px solid #0D2818; background: #E6F0EA !important; color: #0D2818 !important; }
.yga-titleblock * { color: #0D2818 !important; }
.yga-hero-banner, .yga-hero { display: grid !important; grid-template-columns: 1.15fr 0.85fr; gap: 2rem; align-items: start; background: #F3F8F5 !important; border-left: 6px solid #16A34A; padding: 2.5rem !important; }

.yga-topbar, .yga-titleblock > *:first-child { background: #D8E8DF !important; color: #0D2818 !important; padding: 0.75rem 1.25rem !important; }