/* OffGridSpec.com — Practical Engineering & Field Guide Design System */
:root {
  --bg-primary: #0b0f17;
  --bg-secondary: #111827;
  --bg-card: #161f30;
  --bg-card-hover: #1d283d;
  --bg-surface: #0f1623;
  --border-subtle: #26334d;
  --border-accent: #f59e0b;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent-amber: #f59e0b;
  --accent-amber-hover: #d97706;
  --accent-amber-soft: rgba(245, 158, 11, 0.14);
  --accent-emerald: #10b981;
  --accent-emerald-soft: rgba(16, 185, 129, 0.14);
  --accent-cyan: #06b6d4;
  --accent-cyan-soft: rgba(6, 182, 212, 0.14);
  --accent-danger: #ef4444;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SFMono-Regular', Consolas, monospace;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 4px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.45), 0 4px 10px -2px rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(245, 158, 11, 0.10), transparent 70%),
    radial-gradient(ellipse 60% 40% at 85% 20%, rgba(16, 185, 129, 0.06), transparent 60%),
    linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
  background-attachment: fixed;
}

/* Affiliate Disclosure Top Bar */
.disclosure-bar {
  background: #070a0f;
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.45rem 1.25rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

.disclosure-bar strong {
  color: var(--accent-amber);
  font-family: var(--font-mono);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-amber), #ea580c);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #0b0f17;
  font-weight: 900;
  font-family: var(--font-mono);
  font-size: 1.05rem;
}

.brand-logo span.spec-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  color: var(--accent-amber);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.82rem;
  background: var(--accent-amber-soft);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.status-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  display: inline-block;
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: telemetryPulse 2s infinite ease-in-out;
}

@keyframes telemetryPulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  50% {
    opacity: 0.65;
    transform: scale(1.12);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
}

.telemetry-live-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent-emerald);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--accent-amber);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.18s ease;
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--accent-amber);
  color: #0b0f17;
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--accent-amber-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-outline:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.btn-emerald {
  background: var(--accent-emerald);
  color: #052e16;
  font-weight: 700;
}

.btn-emerald:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

/* Layout Containers */
.section-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.section-header {
  margin-bottom: 2.25rem;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-amber);
  background: var(--accent-amber-soft);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.section-title {
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 0.65rem;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 780px;
  font-size: 1.05rem;
}

/* Hero Section */
.hero-section {
  padding: 3.5rem 1.5rem 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.1rem;
}

.hero-title .highlight {
  color: var(--accent-amber);
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.65rem;
  max-width: 640px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2rem;
}

.trust-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
}

.metric-item strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--accent-emerald);
}

.metric-item span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Hero Quick-Jump Tier Ladder Card */
.hero-ladder-card {
  background: linear-gradient(180deg, rgba(22, 31, 48, 0.96) 0%, rgba(15, 22, 35, 0.98) 100%);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.65), 0 4px 12px -2px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.hero-ladder-card:hover {
  border-color: rgba(245, 158, 11, 0.45);
  box-shadow: 0 22px 45px -12px rgba(0, 0, 0, 0.7), 0 0 20px rgba(245, 158, 11, 0.08);
}

.hero-ladder-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-ladder-header h3 {
  font-size: 1rem;
  font-family: var(--font-mono);
  color: var(--accent-amber);
}

.ladder-step {
  padding: 0.9rem;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.ladder-step:hover {
  border-color: var(--accent-amber);
  transform: translateX(3px);
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.12);
}

.ladder-step-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--accent-cyan);
  margin-bottom: 0.25rem;
}

.ladder-step h4 {
  font-size: 0.98rem;
  margin-bottom: 0.2rem;
}

.ladder-step p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Interactive Load & Surge Calculator */
.calculator-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 2rem;
  align-items: start;
}

.calc-panel {
  background: linear-gradient(180deg, rgba(22, 31, 48, 0.95) 0%, rgba(15, 22, 35, 0.98) 100%);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.65rem;
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.65), 0 4px 12px -2px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
}

.calc-controls-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.control-group label {
  display: block;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.control-group select,
.control-group input {
  width: 100%;
  padding: 0.55rem 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.2rem;
}

.preset-btn {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-btn:hover,
.preset-btn.active {
  background: var(--accent-amber-soft);
  color: var(--accent-amber);
  border-color: var(--accent-amber);
}

.appliance-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 0.35rem;
}

.appliance-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.9rem;
  padding: 0.8rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.appliance-row.selected {
  border-color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.06);
}

.appliance-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-amber);
  cursor: pointer;
}

.appliance-info h4 {
  font-size: 0.93rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.appliance-meta {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
}

.appliance-meta .surge-tag {
  color: var(--accent-amber);
}

.hours-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.82rem;
}

.hours-input-wrap input {
  width: 62px;
  padding: 0.35rem 0.45rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Sticky Telemetry Output Dashboard */
.telemetry-panel {
  position: sticky;
  top: 5.2rem;
  background: linear-gradient(180deg, #161f30 0%, #0f1623 100%);
  border: 1px solid var(--accent-amber);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  padding: 1.65rem;
  box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.7), 0 0 24px rgba(245, 158, 11, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.15rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.telemetry-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.kpi-box {
  background: rgba(11, 15, 23, 0.78);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.85rem;
  border-radius: var(--radius-md);
}

.kpi-label {
  font-size: 0.73rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.25rem;
}

.kpi-value {
  font-size: 1.35rem;
  font-weight: 800;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.kpi-value.amber {
  color: var(--accent-amber);
}

.kpi-value.emerald {
  color: var(--accent-emerald);
}

.kpi-sub {
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.recommended-match-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.4);
  border-top: 1px solid rgba(16, 185, 129, 0.55);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  margin-bottom: 1.1rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.recommended-match-box .match-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-emerald);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.3rem;
}

.recommended-match-box h4 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.recommended-match-box p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}

/* System Blueprints Section */
.blueprint-tabs {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.blueprint-tab {
  flex: 1;
  min-width: 240px;
  padding: 1rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: all 0.18s ease;
}

.blueprint-tab.active {
  border-color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.1);
  color: var(--text-primary);
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.14);
}

.blueprint-tab .tab-tier {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  margin-bottom: 0.25rem;
}

.blueprint-tab strong {
  font-size: 0.98rem;
}

.blueprint-detail-card,
.blueprint-card {
  background: linear-gradient(180deg, rgba(22, 31, 48, 0.96) 0%, rgba(15, 22, 35, 0.98) 100%);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.65), 0 4px 12px -2px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.blueprint-detail-card:hover,
.blueprint-card:hover {
  border-color: rgba(245, 158, 11, 0.45);
}

.blueprint-top-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: center;
}

.blueprint-specs-pills {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.spec-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
}

.spec-pill span {
  display: block;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.spec-pill strong {
  font-size: 0.9rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* SVG Wiring Schematic Container */
.schematic-box {
  background: #080c14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.schematic-box-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

/* Bill of Materials Table */
.bom-table-wrapper {
  overflow-x: auto;
}

.bom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

.bom-table th,
.bom-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.bom-table th {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-surface);
}

.bom-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: var(--accent-amber-soft);
  color: var(--accent-amber);
  margin-left: 0.4rem;
}

.merchant-btns {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
}

/* Appliance Runtime Compatibility Matrix */
.matrix-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.matrix-search {
  flex: 1;
  min-width: 260px;
  padding: 0.7rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.matrix-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-card);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

.matrix-table th,
.matrix-table td {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.matrix-table th {
  background: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.runtime-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

.runtime-ok {
  background: var(--accent-emerald-soft);
  color: var(--accent-emerald);
}

.runtime-warn {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
}

/* Storefront Product Catalog Grid */
.catalog-filters {
  display: flex;
  gap: 0.65rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: linear-gradient(180deg, rgba(22, 31, 48, 0.96) 0%, rgba(15, 22, 35, 0.98) 100%);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 18px 35px -10px rgba(0, 0, 0, 0.6), 0 4px 10px -2px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-amber);
  box-shadow: 0 22px 42px -10px rgba(0, 0, 0, 0.75), 0 0 20px rgba(245, 158, 11, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.product-card.compare-selected {
  border-color: var(--accent-emerald);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7), 0 0 22px rgba(16, 185, 129, 0.22);
}

.product-tier-tag {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--accent-cyan);
  margin-bottom: 0.4rem;
  display: block;
}

.product-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.product-spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin: 0.85rem 0;
  padding: 0.85rem;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
}

.product-verdict {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

/* Field Guides Grid */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.guide-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-amber);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: block;
}

.guide-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.7rem;
  line-height: 1.35;
}

.guide-takeaway {
  margin: 1rem 0;
  padding: 0.75rem;
  background: var(--bg-surface);
  border-left: 3px solid var(--accent-emerald);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Native HTML <dialog> Modal Styling */
dialog.blueprint-dialog {
  margin: auto;
  max-width: 560px;
  width: calc(100% - 2rem);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75);
}

dialog.blueprint-dialog::backdrop {
  background: rgba(5, 8, 15, 0.8);
  backdrop-filter: blur(6px);
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1rem;
}

.dialog-close {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1.1rem;
}

.lead-form-group {
  margin-bottom: 1rem;
}

.lead-form-group label {
  display: block;
  font-size: 0.84rem;
  margin-bottom: 0.35rem;
  color: var(--text-secondary);
}

.lead-form-group input,
.lead-form-group select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  background: #070a0f;
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 1.5rem;
  margin-top: 4rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 960px) {
  .hero-section,
  .calculator-grid,
  .blueprint-top-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .telemetry-panel {
    position: static;
  }
  .calc-controls-bar {
    grid-template-columns: 1fr;
  }
}

/* E-E-A-T Methodology & Freshness Bar (tools-page-seo-optimizer) */
.eeat-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.1rem;
  margin-bottom: 1.5rem;
  background: rgba(16, 185, 129, 0.07);
  border: 1px solid rgba(16, 185, 129, 0.28);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.eeat-bar strong {
  color: var(--accent-emerald);
  font-family: var(--font-mono);
}

.eeat-badges {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.eeat-badge {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  color: var(--text-primary);
}

/* Shareable Spec Link Button & Toast (viral-generator-builder) */
.share-spec-wrap {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.btn-share-spec {
  width: 100%;
  background: var(--bg-surface);
  border: 1px dashed var(--accent-cyan);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.btn-share-spec:hover {
  background: rgba(6, 182, 212, 0.12);
}

/* Head-to-Head Comparison Matrix (seo-competitor-pages) */
.comparison-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.comparison-verdict-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.verdict-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-amber);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.verdict-box.emerald {
  border-left-color: var(--accent-emerald);
}

.verdict-box h4 {
  color: var(--text-primary);
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

/* Engineering FAQ Accordion (ai-seo & search-hidden-content) */
.faq-list {
  display: grid;
  gap: 0.85rem;
}

details.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.35rem;
  transition: border-color 0.15s ease;
}

details.faq-item[open] {
  border-color: var(--accent-amber);
}

details.faq-item summary {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent-amber);
}

details.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* Visual Product & Field Guide Photography Styles */
.ladder-step-with-thumb {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 0.9rem;
  align-items: center;
}

.ladder-thumb {
  width: 78px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: #080c14;
}

.match-box-media {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  align-items: center;
  margin: 0.65rem 0 0.9rem;
  padding: 0.65rem;
  background: rgba(8, 12, 20, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.match-box-img {
  width: 110px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.blueprint-hero-banner {
  position: relative;
  margin-bottom: 1.15rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #080c14;
}

.blueprint-hero-banner img {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 230px;
  object-fit: cover;
  display: block;
}

.blueprint-hero-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.45rem 0.85rem;
  background: linear-gradient(to top, rgba(7, 10, 15, 0.95), rgba(7, 10, 15, 0.55));
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-amber);
  display: flex;
  justify-content: space-between;
}

.bom-item-cell {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.bom-thumb {
  width: 68px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  flex-shrink: 0;
  background: #080c14;
}

.product-card-media {
  position: relative;
  margin: -1.5rem -1.5rem 1.1rem -1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: #080c14;
}

.product-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  transition: transform 0.25s ease;
}

.product-card:hover .product-card-img {
  transform: scale(1.03);
}

.product-card-overlay-badge {
  position: absolute;
  bottom: 0.65rem;
  right: 0.65rem;
  background: rgba(11, 15, 23, 0.88);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

.comparison-vs-visuals {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.25rem;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.comp-visual-card {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.comp-visual-img {
  width: 130px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.vs-pill {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--accent-amber);
  background: var(--accent-amber-soft);
  border: 1px solid var(--accent-amber);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.guide-card-media {
  margin: -1.6rem -1.6rem 1.15rem -1.6rem;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: #080c14;
}

.guide-card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

@media (max-width: 760px) {
  .comparison-vs-visuals {
    grid-template-columns: 1fr;
  }
  .vs-pill {
    margin: 0 auto;
  }
}

/* Additional Product Card Badge & Bullet Spec Styles */
.product-card-top-badge {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  background: rgba(11, 15, 23, 0.9);
  border: 1px solid var(--accent-amber);
  color: var(--accent-amber);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  backdrop-filter: blur(4px);
}

.product-bullet-specs {
  list-style: none;
  margin: 0.85rem 0;
  padding: 0.85rem;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-secondary);
  display: grid;
  gap: 0.35rem;
}

/* Official OffGridSpec Printable Engineering Spec Sheet (On-Screen Preview + @media print) */
.printable-spec-sheet {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.spec-sheet-paper {
  background: var(--bg-card);
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
}

.spec-sheet-ActionBar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px dashed var(--border-subtle);
}

.spec-doc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.25rem;
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--accent-amber);
}

.spec-doc-brand {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent-amber);
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.spec-doc-title-block h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.spec-doc-title-block p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.spec-doc-meta-table {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  display: grid;
  gap: 0.25rem;
  min-width: 260px;
}

.spec-doc-meta-table span {
  color: var(--text-muted);
}

.spec-section-block {
  margin-bottom: 1.75rem;
  break-inside: avoid;
}

.spec-section-heading {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-amber);
  background: var(--bg-surface);
  border-left: 3px solid var(--accent-amber);
  padding: 0.45rem 0.75rem;
  margin-bottom: 0.85rem;
}

.spec-print-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.spec-print-table th,
.spec-print-table td {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.spec-print-table th {
  background: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.spec-print-table tfoot td {
  background: rgba(245, 158, 11, 0.08);
  font-family: var(--font-mono);
}

.spec-telemetry-print-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
}

.spec-telemetry-print-cell {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
}

.spec-telemetry-print-cell span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.spec-telemetry-print-cell strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-emerald);
  margin-bottom: 0.2rem;
}

.spec-telemetry-print-cell small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.spec-print-schematic-wrap {
  background: #080c14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.spec-doc-footer-note {
  margin-top: 0.85rem;
  padding: 0.75rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

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

/* Crisp Black-on-White Technical Blueprint Styling for window.print() PDF Generation */
@media print {
  @page {
    size: auto;
    margin: 12mm;
  }

  html,
  body {
    background: #ffffff !important;
    background-image: none !important;
    color: #000000 !important;
    font-size: 10pt;
    line-height: 1.35;
  }

  .disclosure-bar,
  .site-header,
  .hero-section,
  #calculator-section,
  #blueprints-section,
  #runtime-matrix-section,
  #storefront-catalog,
  #comparison-section,
  #field-guides-section,
  #faq-section,
  .site-footer,
  dialog.blueprint-dialog,
  .compare-floating-dock,
  .kit-drawer,
  .kit-drawer-backdrop,
  .no-print {
    display: none !important;
  }

  main {
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
  }

  #printable-spec-sheet {
    display: block !important;
    max-width: 100% !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .spec-sheet-paper {
    background: #ffffff !important;
    color: #000000 !important;
    border: 2px solid #000000 !important;
    border-radius: 0 !important;
    padding: 14px !important;
    box-shadow: none !important;
  }

  .spec-doc-header {
    border-bottom: 2px solid #000000 !important;
    margin-bottom: 12px !important;
    padding-bottom: 10px !important;
  }

  .spec-doc-brand,
  .spec-doc-title-block h2,
  .spec-doc-title-block p,
  .spec-doc-meta-table,
  .spec-doc-meta-table span,
  .spec-doc-meta-table strong {
    color: #000000 !important;
  }

  .spec-doc-meta-table {
    background: #f8fafc !important;
    border: 1px solid #000000 !important;
  }

  .spec-section-block {
    break-inside: avoid;
    page-break-inside: avoid;
    margin-bottom: 14px !important;
  }

  .spec-section-heading {
    background: #f1f5f9 !important;
    color: #000000 !important;
    border: 1px solid #000000 !important;
    border-left: 4px solid #000000 !important;
    font-weight: 800 !important;
  }

  .spec-print-table th,
  .spec-print-table td {
    border: 1px solid #000000 !important;
    color: #000000 !important;
    background: #ffffff !important;
    padding: 5px 7px !important;
  }

  .spec-print-table th,
  .spec-print-table tfoot td {
    background: #f1f5f9 !important;
    font-weight: 700 !important;
  }

  .spec-telemetry-print-grid {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 8px !important;
  }

  .spec-telemetry-print-cell {
    background: #ffffff !important;
    border: 1px solid #000000 !important;
    padding: 7px !important;
  }

  .spec-telemetry-print-cell span,
  .spec-telemetry-print-cell strong,
  .spec-telemetry-print-cell small {
    color: #000000 !important;
  }

  .spec-print-schematic-wrap {
    background: #080c14 !important;
    border: 1.5px solid #000000 !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .spec-doc-footer-note {
    background: #f8fafc !important;
    border: 1px solid #000000 !important;
    color: #000000 !important;
  }
}

/* ==========================================================================
   2026 Aerospace / Industrial Telemetry Gauges, Trust Strips & Compare Dock
   ========================================================================== */

/* Quick-Spec Pill Strip Overlaid on Product Image Container */
.quick-spec-pill-strip {
  position: absolute;
  bottom: 0.65rem;
  left: 0.65rem;
  right: 5.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  pointer-events: none;
}

.quick-spec-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.66rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  backdrop-filter: blur(6px);
  letter-spacing: 0.02em;
}

.quick-spec-pill.tax-credit {
  background: rgba(5, 46, 22, 0.9);
  border: 1px solid rgba(16, 185, 129, 0.75);
  color: #34d399;
}

.quick-spec-pill.warranty {
  background: rgba(11, 15, 23, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.45);
  color: var(--text-secondary);
}

/* Visual Power & Surge Capacity Telemetry Bar inside Product Cards */
.power-surge-telemetry-box {
  margin: 0.75rem 0;
  padding: 0.7rem 0.85rem;
  background: rgba(8, 12, 20, 0.75);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.telemetry-bar-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.71rem;
  margin-bottom: 0.4rem;
  gap: 0.5rem;
}

.telemetry-bar-labels .cont-label {
  color: var(--accent-emerald);
  font-weight: 700;
}

.telemetry-bar-labels .surge-label {
  color: var(--accent-amber);
  font-weight: 700;
}

.telemetry-bar-track {
  position: relative;
  height: 8px;
  background: rgba(38, 51, 77, 0.55);
  border-radius: 999px;
  overflow: hidden;
}

.telemetry-bar-surge {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.35), var(--accent-amber));
  border-radius: 999px;
}

.telemetry-bar-cont {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, #059669, var(--accent-emerald));
  border-radius: 999px;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

/* Contextual Risk-Reversal & IRS 25D Tax Credit Trust Strip */
.risk-reversal-strip {
  margin: 0.65rem 0 0.75rem;
  padding: 0.55rem 0.7rem;
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.28);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.71rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.risk-reversal-strip .irs-net-highlight {
  display: block;
  margin-top: 0.22rem;
  color: var(--accent-emerald);
  font-weight: 700;
}

/* Product Card Action Row (CTA + Compare Spec Button) */
.product-card-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: stretch;
}

.btn-compare-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0.45rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.16s ease;
}

.btn-compare-toggle:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.btn-compare-toggle.active {
  background: var(--accent-emerald-soft);
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
}

/* Floating Hardware Comparison Dock at Bottom of Viewport */
.compare-floating-dock {
  position: fixed;
  bottom: 1.15rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 120;
  width: min(960px, calc(100% - 1.5rem));
  background: rgba(11, 15, 23, 0.95);
  border: 1px solid var(--accent-amber);
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.85), 0 0 28px rgba(245, 158, 11, 0.22);
  backdrop-filter: blur(14px);
}

.compare-floating-dock[hidden] {
  display: none !important;
}

.compare-dock-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.compare-dock-items {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.compare-dock-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.compare-dock-chip img {
  width: 34px;
  height: 24px;
  object-fit: cover;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
}

.compare-dock-chip button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0 0.15rem;
}

.compare-dock-chip button:hover {
  color: var(--accent-danger);
}

/* Custom Multi-Column Side-by-Side Comparison Matrix & Presets */
.custom-compare-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 0.85rem 1.1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.custom-compare-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* E-E-A-T Bar & Footer Methodology Links */
.eeat-inline-links {
  display: inline-block;
  margin-left: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.eeat-inline-links a {
  color: var(--accent-amber);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.eeat-inline-links a:hover {
  color: var(--accent-emerald);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.footer-legal-links a {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

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

/* ==========================================================================
   Slide-Over "My System Kit / BOM Cart Drawer" & Storefront Add-to-Kit UI
   ========================================================================== */

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.kit-drawer-trigger {
  border-color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.08);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 700;
  padding: 0.52rem 0.9rem;
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.14);
}

.kit-drawer-trigger:hover {
  background: rgba(245, 158, 11, 0.18);
  border-color: var(--accent-amber);
  color: #ffffff;
  transform: translateY(-1px);
}

.kit-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: var(--accent-emerald);
  color: #052e16;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.74rem;
  font-weight: 800;
  margin-left: 0.25rem;
}

/* Storefront Product Card 3-Button Layout */
.product-card-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.48rem;
}

.product-card-subactions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}

.btn-kit-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.48rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.45);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.16s ease;
}

.btn-kit-add:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--accent-emerald);
  transform: translateY(-1px);
}

.btn-kit-add.in-kit {
  background: var(--accent-emerald);
  color: #052e16;
  border-color: var(--accent-emerald);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.35);
}

.btn-kit-load-tier {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.58rem 1rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.18), rgba(6, 182, 212, 0.14));
  color: #34d399;
  border: 1px solid var(--accent-emerald);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.18s ease;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.16);
}

.btn-kit-load-tier:hover {
  background: var(--accent-emerald);
  color: #052e16;
  transform: translateY(-1px);
}

/* Slide-Over Backdrop & Drawer Container */
.kit-drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 240;
  background: rgba(5, 8, 14, 0.72);
  backdrop-filter: blur(5px);
  opacity: 0;
  transition: opacity 0.22s ease;
}

.kit-drawer-backdrop.open {
  opacity: 1;
}

.kit-drawer-backdrop[hidden] {
  display: none !important;
}

.kit-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 250;
  width: min(540px, 100vw);
  background: rgba(11, 15, 23, 0.96);
  backdrop-filter: blur(20px);
  border-left: 1px solid var(--accent-amber);
  box-shadow: -20px 0 55px rgba(0, 0, 0, 0.85), 0 0 30px rgba(245, 158, 11, 0.12);
  display: flex;
  flex-direction: column;
  transform: translateX(104%);
  transition: transform 0.26s cubic-bezier(0.16, 1, 0.3, 1);
  font-variant-numeric: tabular-nums;
}

.kit-drawer.open {
  transform: translateX(0);
}

.kit-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.15rem 1.35rem;
  background: linear-gradient(180deg, rgba(22, 31, 48, 0.95) 0%, rgba(15, 22, 35, 0.95) 100%);
  border-bottom: 1px solid var(--border-subtle);
}

.kit-drawer-title {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: 0.15rem;
}

.kit-drawer-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-kit-clear {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-kit-clear:hover {
  background: rgba(239, 68, 68, 0.22);
  border-color: var(--accent-danger);
  color: #ffffff;
}

.kit-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.15rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* 1. Live Engineering Compatibility & Safety Verifier Banner */
.kit-verifier-banner {
  background: rgba(15, 22, 35, 0.95);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
}

.kit-verifier-banner.verified {
  border-color: rgba(16, 185, 129, 0.5);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.09) 0%, rgba(15, 22, 35, 0.95) 100%);
}

.kit-verifier-banner.warning {
  border-color: rgba(245, 158, 11, 0.65);
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.12) 0%, rgba(15, 22, 35, 0.95) 100%);
}

.kit-verifier-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  margin-bottom: 0.65rem;
}

.kit-verifier-status.ok {
  background: rgba(16, 185, 129, 0.16);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.45);
}

.kit-verifier-status.warn {
  background: rgba(245, 158, 11, 0.18);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.5);
}

.kit-verifier-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.55rem;
}

.kit-verifier-metric {
  background: rgba(8, 12, 20, 0.75);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.6rem;
}

.kit-verifier-metric span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.kit-verifier-metric strong {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* Quick Tier Switcher Bar Inside Drawer */
.kit-quick-tier-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  flex-wrap: wrap;
  padding: 0.55rem 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.kit-quick-tier-bar span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.kit-tier-pill-btn {
  padding: 0.25rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.kit-tier-pill-btn:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

/* 2. Itemized Component List */
.kit-items-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.kit-item-card {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 0.8rem;
  padding: 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  align-items: center;
}

.kit-item-thumb {
  width: 64px;
  height: 54px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: #080c14;
}

.kit-item-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.2rem;
}

.kit-item-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
}

.kit-item-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.kit-qty-group {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  overflow: hidden;
}

.kit-qty-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.52rem;
  cursor: pointer;
}

.kit-qty-btn:hover {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
}

.kit-qty-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0 0.45rem;
  color: var(--text-primary);
}

.kit-remove-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  text-decoration: underline;
  margin-left: 0.35rem;
}

.kit-remove-btn:hover {
  color: var(--accent-danger);
}

.kit-item-checkout-link {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--accent-amber);
  text-decoration: none;
  padding: 0.25rem 0.55rem;
  background: var(--accent-amber-soft);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 4px;
  transition: all 0.15s ease;
}

.kit-item-checkout-link:hover {
  background: var(--accent-amber);
  color: #0b0f17;
}

/* 3. IRS Section 25D (30% Clean Energy Credit) & Financial Summary Box */
.kit-drawer-footer {
  padding: 1rem 1.35rem 1.25rem;
  background: linear-gradient(180deg, rgba(15, 22, 35, 0.98) 0%, rgba(11, 15, 23, 1) 100%);
  border-top: 1px solid var(--border-subtle);
}

.kit-financial-box {
  background: rgba(8, 12, 20, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.kit-fin-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
  color: var(--text-secondary);
}

.kit-fin-row.tax-credit-row {
  color: var(--accent-emerald);
}

.kit-fin-row.net-total-row {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border-subtle);
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-primary);
}

.kit-fin-row.net-total-row strong {
  font-size: 1.18rem;
  color: var(--accent-emerald);
}

.kit-irs-upsell-prompt {
  margin: 0.4rem 0;
  padding: 0.45rem 0.65rem;
  background: rgba(245, 158, 11, 0.1);
  border-left: 3px solid var(--accent-amber);
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--accent-amber);
  line-height: 1.4;
}

.kit-dispatch-panel {
  margin-top: 0.65rem;
  padding: 0.75rem;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid var(--accent-emerald);
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
}

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

/* ==========================================================================
   In-Site "Unified Express Checkout & Concierge Order Modal" (#insite-checkout-modal)
   ========================================================================== */

.product-info-spec-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 0.2rem;
  padding: 0.38rem 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(15, 22, 35, 0.85);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.16s ease;
}

.product-info-spec-link:hover {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.08);
}

.bom-spec-sublink {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-amber);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

.bom-spec-sublink:hover {
  color: var(--accent-emerald);
}

.checkout-dialog {
  width: min(1060px, calc(100vw - 1.5rem));
  max-height: calc(100vh - 2rem);
  margin: auto;
  padding: 0;
  background: linear-gradient(180deg, #131c2e 0%, #0b0f17 100%);
  color: var(--text-primary);
  border: 1px solid var(--accent-amber);
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px -12px rgba(0, 0, 0, 0.92), 0 0 40px rgba(245, 158, 11, 0.18);
  overflow-y: auto;
  font-variant-numeric: tabular-nums;
}

.checkout-dialog::backdrop {
  background: rgba(5, 8, 14, 0.82);
  backdrop-filter: blur(8px);
}

.checkout-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem 1.5rem;
  background: rgba(15, 22, 35, 0.96);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

.checkout-modal-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 1.5rem;
  padding: 1.5rem;
  align-items: start;
}

.checkout-step-card {
  background: rgba(15, 22, 35, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1.1rem;
}

.checkout-step-card.active-step {
  border-color: rgba(245, 158, 11, 0.55);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.08);
}

.checkout-step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-subtle);
}

.checkout-step-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  color: #0b0f17;
  background: var(--accent-amber);
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.checkout-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.checkout-form-grid .full-span {
  grid-column: 1 / -1;
}

.checkout-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.28rem;
}

.checkout-field input,
.checkout-field select {
  width: 100%;
  padding: 0.58rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.checkout-field input:focus,
.checkout-field select:focus {
  outline: none;
  border-color: var(--accent-amber);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.checkout-delivery-options {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.checkout-radio-option {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.65rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
}

.checkout-radio-option:has(input:checked) {
  border-color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.08);
}

.checkout-irs-box {
  margin-top: 0.85rem;
  padding: 0.7rem 0.85rem;
  background: rgba(16, 185, 129, 0.09);
  border: 1px solid rgba(16, 185, 129, 0.45);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.8rem;
  color: var(--text-primary);
}

/* Payment Method Tabs */
.checkout-pay-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.95rem;
}

.checkout-pay-tab {
  padding: 0.6rem 0.65rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}

.checkout-pay-tab:hover {
  border-color: var(--accent-amber);
  color: var(--text-primary);
}

.checkout-pay-tab.active {
  background: rgba(245, 158, 11, 0.14);
  border-color: var(--accent-amber);
  color: var(--accent-amber);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.15);
}

.express-wallet-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
}

.btn-wallet-express {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.58rem 0.8rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.15s ease;
}

.btn-wallet-apple {
  background: #ffffff;
  color: #090d16;
}

.btn-wallet-shop {
  background: #5a31f4;
  color: #ffffff;
}

.btn-wallet-express:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.checkout-security-badge {
  margin-top: 0.75rem;
  padding: 0.55rem 0.75rem;
  background: rgba(8, 12, 20, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-emerald);
}

/* Right Column: Live Order Summary & Telemetry Sidebar */
.checkout-summary-aside {
  background: rgba(15, 22, 35, 0.95);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  position: sticky;
  top: 5.2rem;
}

.checkout-summary-item {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 0.65rem;
  align-items: center;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(38, 51, 77, 0.6);
  font-size: 0.8rem;
}

.checkout-summary-item img {
  width: 48px;
  height: 40px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

/* Step 3: Confirmation Receipt */
.checkout-confirmation-box {
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.12) 0%, rgba(15, 22, 35, 0.96) 100%);
  border: 1px solid var(--accent-emerald);
  border-radius: var(--radius-md);
  padding: 1.35rem;
}

.checkout-attribution-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.9rem 0;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.checkout-attribution-table th,
.checkout-attribution-table td {
  padding: 0.6rem 0.65rem;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.checkout-attribution-table th {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  background: rgba(8, 12, 20, 0.75);
}

@media (max-width: 860px) {
  .checkout-modal-grid {
    grid-template-columns: 1fr;
  }
  .checkout-pay-tabs {
    grid-template-columns: 1fr;
  }
  .checkout-form-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   v2.7 UX Declutter Upgrade: Cart Icon, Toast, Workspace Switcher & Storefront
   ========================================================================== */

/* 1. Sleek Header Shopping Cart Icon Button + Bump Animation */
.cart-icon-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.48rem 0.85rem;
  background: rgba(22, 31, 48, 0.92);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 999px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.cart-icon-btn:hover {
  background: rgba(245, 158, 11, 0.14);
  border-color: var(--accent-amber);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.2);
}

.cart-svg-icon {
  color: var(--accent-amber);
  flex-shrink: 0;
}

.cart-btn-label {
  letter-spacing: 0.02em;
}

.cart-subtotal-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
}

.cart-subtotal-pill[hidden] {
  display: none !important;
}

@keyframes cartBumpAnim {
  0% {
    transform: scale(1);
  }
  30% {
    transform: scale(1.12);
    border-color: var(--accent-emerald);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.45);
  }
  60% {
    transform: scale(0.96);
  }
  100% {
    transform: scale(1);
  }
}

.cart-icon-btn.cart-bump {
  animation: cartBumpAnim 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

/* 2. Non-Intrusive Bottom-Right Cart Toast Notification (#cart-toast) */
.cart-toast {
  position: fixed;
  bottom: 1.35rem;
  right: 1.35rem;
  z-index: 230;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  max-width: min(440px, calc(100vw - 2rem));
  padding: 0.75rem 1rem;
  background: rgba(15, 22, 35, 0.96);
  border: 1px solid var(--accent-emerald);
  border-left: 4px solid var(--accent-emerald);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.8), 0 0 20px rgba(16, 185, 129, 0.22);
  backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.cart-toast[hidden] {
  display: none !important;
}

.cart-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.cart-toast-content {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-primary);
}

.cart-toast-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-emerald);
  color: #052e16;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cart-toast-view-btn {
  background: var(--accent-amber-soft);
  border: 1px solid var(--accent-amber);
  color: var(--accent-amber);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
  padding: 0.35rem 0.68rem;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.cart-toast-view-btn:hover {
  background: var(--accent-amber);
  color: #0b0f17;
}

/* 3. Workspace Mode Switcher Bar (Tabbed Pillar Navigation) */
.workspace-mode-bar {
  position: sticky;
  top: 63px;
  z-index: 90;
  background: rgba(11, 15, 23, 0.94);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.65rem 1.5rem;
}

.workspace-mode-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.workspace-tabs {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.workspace-tab {
  padding: 0.48rem 0.9rem;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.16s ease;
  white-space: nowrap;
}

.workspace-tab:hover {
  border-color: var(--accent-amber);
  color: var(--text-primary);
}

.workspace-tab.active {
  background: var(--accent-amber);
  border-color: var(--accent-amber);
  color: #0b0f17;
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.28);
}

.workspace-mode-hint {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--text-muted);
}

.workspace-hidden {
  display: none !important;
}

.nav-links a.active {
  color: var(--accent-amber);
  font-weight: 700;
}

/* 4. Calculator Appliance Category Filter Bar */
.appliance-category-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.appliance-cat-btn {
  padding: 0.35rem 0.72rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.appliance-cat-btn:hover,
.appliance-cat-btn.active {
  background: var(--accent-amber-soft);
  color: var(--accent-amber);
  border-color: var(--accent-amber);
}

/* 5. Storefront E-Commerce Search, Sort & Category Toolbar */
.catalog-toolbar {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-card);
}

.catalog-search-sort-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.catalog-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.catalog-search-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
}

.catalog-search-input {
  width: 100%;
  padding: 0.68rem 0.95rem 0.68rem 2.4rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: border-color 0.15s ease;
}

.catalog-search-input:focus {
  outline: none;
  border-color: var(--accent-amber);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.16);
}

.catalog-sort-wrap {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.catalog-sort-wrap label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.catalog-sort-select {
  padding: 0.65rem 0.9rem;
  background: var(--bg-surface);
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  cursor: pointer;
}

.catalog-toolbar .catalog-filters {
  margin-bottom: 0.85rem;
}

.catalog-results-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding-top: 0.65rem;
  border-top: 1px solid rgba(38, 51, 77, 0.55);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.catalog-reset-link {
  background: transparent;
  border: none;
  color: var(--accent-amber);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}

/* /* 6. Industrial Machined Storefront Product Cards & Telemetry Architecture */
.disclosure-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.disclosure-telemetry-left {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}

.disclosure-telemetry-right {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.disclosure-sep {
  color: var(--border-subtle);
  margin: 0 0.25rem;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.16) 0%, rgba(15, 22, 35, 0.96) 100%);
  border: 1px solid rgba(245, 158, 11, 0.55);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 12px rgba(245, 158, 11, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
}

.nav-links {
  gap: 0.5rem;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.42rem 0.75rem;
  border-radius: 6px;
  border: 1px solid transparent;
  color: var(--text-secondary);
  transition: all 0.16s ease;
}

.nav-links a .nav-idx {
  color: var(--accent-amber);
  font-weight: 700;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--text-primary);
}

.btn-export-spec {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-color: rgba(148, 163, 184, 0.35);
}

/* Hero 4-Column Benchmark Strip & Rack-Mounted Console */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.trust-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 0;
  margin-top: 0.5rem;
  background: rgba(15, 22, 35, 0.9);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.trust-metrics .metric-item {
  padding: 0.85rem 0.95rem;
  border-right: 1px solid var(--border-subtle);
}

.trust-metrics .metric-item:last-child {
  border-right: none;
}

.trust-metrics .metric-item strong {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.15rem;
}

.trust-metrics .metric-item span {
  display: block;
  font-size: 0.73rem;
  line-height: 1.35;
}

.hero-ladder-card {
  position: relative;
  padding: 1.35rem 1.4rem;
}

.console-rivets {
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  margin-bottom: 0.45rem;
}

.console-rivets-bottom {
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.console-rivet {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #1e293b;
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.8);
}

.console-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 0.15rem;
}

.console-status-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.ladder-tier-pill {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.35);
  color: var(--accent-cyan);
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 700;
}

.ladder-tier-pill.amber {
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--accent-amber);
}

.ladder-tier-pill.emerald {
  background: rgba(16, 185, 129, 0.14);
  border-color: rgba(16, 185, 129, 0.4);
  color: var(--accent-emerald);
}

.ladder-price-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.75rem;
}

/* Segmented Workspace Command Bar */
.workspace-tabs {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.28rem;
  background: #080c14;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  flex-wrap: wrap;
}

.workspace-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.44rem 0.88rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.16s ease;
}

.workspace-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.workspace-tab.active {
  background: var(--accent-amber);
  border-color: var(--accent-amber);
  color: #0b0f17;
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.3);
}

/* Buttons & Filter Pills with Inline SVGs */
.preset-btn,
.appliance-cat-btn,
.catalog-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
}

.card-compare-overlay-btn {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  background: rgba(11, 15, 23, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.45);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.28rem 0.62rem;
  border-radius: 6px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: all 0.15s ease;
}

.card-compare-overlay-btn:hover {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.card-compare-overlay-btn.active {
  background: rgba(16, 185, 129, 0.95);
  border-color: var(--accent-emerald);
  color: #052e16;
}

.product-card-eyebrow-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.product-card-eyebrow-row .product-tier-tag {
  margin-bottom: 0;
  font-size: 0.69rem;
  letter-spacing: 0.04em;
  color: var(--accent-cyan);
  font-weight: 700;
}

.product-value-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-amber);
  background: var(--accent-amber-soft);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.12rem 0.48rem;
  border-radius: 4px;
  white-space: nowrap;
}

.product-card-title {
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.32;
  margin-bottom: 0.75rem;
}

/* 2x2 Technical Spec Matrix with 1px Hairline Dividers */
.product-spec-grid-clean {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.product-spec-grid-clean .spec-cell {
  background: #0c121e;
  padding: 0.55rem 0.7rem;
  font-family: var(--font-mono);
}

.product-spec-grid-clean .spec-cell span {
  display: block;
  font-size: 0.64rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.14rem;
}

.product-spec-grid-clean .spec-cell strong {
  font-size: 0.8rem;
  color: var(--text-primary);
}

/* IRS 25D & Warranty Strip inside Product Card */
.product-irs-warranty-strip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.48rem 0.68rem;
  margin-bottom: 0.75rem;
  background: rgba(16, 185, 129, 0.07);
  border: 1px solid rgba(16, 185, 129, 0.28);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

.product-irs-warranty-strip .irs-strip-icon {
  color: var(--accent-emerald);
  display: inline-flex;
  flex-shrink: 0;
}

.product-irs-warranty-strip .irs-eligible-tag {
  font-style: normal;
  color: var(--accent-emerald);
  font-weight: 700;
}

.product-irs-warranty-strip .irs-expand-tag {
  font-style: normal;
  color: var(--accent-amber);
}

details.card-more-specs {
  margin-bottom: 0.85rem;
  background: rgba(15, 22, 35, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
}

details.card-more-specs summary {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--accent-cyan);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

details.card-more-specs summary::-webkit-details-marker {
  display: none;
}

.details-chevron-svg {
  flex-shrink: 0;
  transition: transform 0.18s ease;
  color: var(--accent-cyan);
}

details.card-more-specs[open] .details-chevron-svg {
  transform: rotate(180deg);
}

.card-more-specs-body {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border-subtle);
}

.card-more-specs-body .product-verdict {
  font-size: 0.83rem;
  margin-bottom: 0.6rem;
}

.product-extra-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.55rem;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.product-price-block {
  display: flex;
  flex-direction: column;
}

.price-main-line {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.price-msrp {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.price-current {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
}

.price-credit-sub {
  font-family: var(--font-mono);
  font-size: 0.69rem;
}

.price-credit-sub.eligible {
  color: var(--accent-emerald);
  font-weight: 700;
}

.price-credit-sub.expand-note {
  color: var(--text-muted);
}

.product-footer-btns {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.btn-buy-now {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 0.48rem 0.82rem;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .trust-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-metrics .metric-item:nth-child(2) {
    border-right: none;
  }
  .trust-metrics .metric-item:nth-child(1),
  .trust-metrics .metric-item:nth-child(2) {
    border-bottom: 1px solid var(--border-subtle);
  }
}

@media (max-width: 780px) {
  .catalog-search-sort-row {
    grid-template-columns: 1fr;
  }
  .workspace-mode-bar {
    position: static;
  }
  .workspace-tabs {
    border-radius: var(--radius-md);
  }
}

/* ==========================================================================
   Canva Website Design (DAHYZ5DR5YU) Architectural Aesthetic & Layout
   ========================================================================== */

/* 1. Header Bar & Geometric Hexagon Logo */
.site-header {
  background: rgba(8, 11, 16, 0.96);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.nav-container {
  max-width: 1320px;
  padding: 0 1.5rem;
  min-height: 74px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 2px;
  background: transparent;
  border: none;
  box-shadow: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #f59e0b;
  padding: 0;
}

.brand-wordmark-stack {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.15;
}

.brand-subline {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #94a3b8;
  margin-bottom: 0.12rem;
}

.brand-wordmark {
  font-family: var(--font-sans);
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
}

/* Navigation Tabs (.nav-links) with Bottom-Border Active Underline */
.nav-links {
  display: flex;
  align-items: stretch;
  gap: 1.35rem;
  margin: 0;
}

.nav-links li {
  display: flex;
  align-items: stretch;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #cbd5e1;
  padding: 1.55rem 0.2rem;
  border-radius: 0;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.nav-links a:hover,
.nav-links a.active {
  background: transparent;
  border-color: transparent;
  border-bottom: 2px solid #f59e0b;
  color: #f59e0b;
}

/* Right Header Telemetry Status + Rectangular System Kit Cart Box */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.header-telemetry-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.06em;
  color: #10b981;
  text-transform: uppercase;
}

.header-telemetry-text {
  display: inline-block;
}

.btn-export-spec {
  border-radius: 2px;
  padding: 0.52rem 0.8rem;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  background: rgba(15, 22, 35, 0.75);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.cart-icon-btn {
  border-radius: 2px;
  padding: 0.58rem 0.95rem;
  background: rgba(15, 22, 35, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: none;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.cart-icon-btn:hover {
  background: rgba(245, 158, 11, 0.08);
  border-color: #f59e0b;
  transform: none;
  box-shadow: none;
}

.cart-btn-label {
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.cart-subtotal-pill {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 800;
  color: #f59e0b;
  background: transparent;
  border: none;
  padding: 0;
  border-radius: 0;
}

.kit-count-badge {
  border-radius: 2px;
  min-width: 19px;
  height: 18px;
  padding: 0 0.32rem;
  font-size: 0.68rem;
  background: rgba(245, 158, 11, 0.16);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.45);
  margin-left: 0.1rem;
}

.kit-count-badge.has-items {
  background: #10b981;
  color: #052e16;
  border-color: #10b981;
}

/* 2. Hero Section — Exact Canva Typography, Copy & 3-Tier Architecture Ladder */
.hero-section {
  max-width: 1320px;
  padding: 4.25rem 1.5rem 3.75rem;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 3.25rem;
  align-items: center;
}

.hero-canva-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #f59e0b;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(3.2rem, 5.6vw, 4.85rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: #ffffff;
  margin-bottom: 1.45rem;
}

.hero-lead {
  font-size: 1.12rem;
  color: #94a3b8;
  line-height: 1.65;
  max-width: 560px;
  margin-bottom: 2.1rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.95rem;
  margin-bottom: 2.75rem;
}

.btn-canva-amber {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.95rem 1.55rem;
  border-radius: 2px;
  background: #f59e0b;
  color: #080b10;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1.5px solid #f59e0b;
  text-decoration: none;
  transition: all 0.16s ease;
}

.btn-canva-amber:hover {
  background: #fbbf24;
  border-color: #fbbf24;
  transform: translateY(-1px);
}

.btn-canva-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.95rem 1.55rem;
  border-radius: 2px;
  background: transparent;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1.5px solid #ffffff;
  text-decoration: none;
  transition: all 0.16s ease;
}

.btn-canva-ghost:hover {
  border-color: #f59e0b;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.06);
}

/* Bottom 3-Column Horizontal Hairline Status Table */
.trust-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding: 1.15rem 0;
  margin-top: 0;
  background: transparent;
  border: none;
  border-top: 1px solid rgba(148, 163, 184, 0.22);
  border-bottom: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 0;
}

.trust-metrics .metric-item {
  padding: 0;
  border-right: none;
}

.trust-metrics .metric-item .metric-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #94a3b8;
  margin-bottom: 0.35rem;
}

.trust-metrics .metric-item strong {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #ffffff;
  margin-bottom: 0;
}

/* Right Column: Canva Architectural 3-Tier Ladder Console */
.hero-ladder-card {
  background: #0b0f17;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 2px;
  padding: 1.65rem 1.75rem;
  box-shadow: 12px 12px 0px rgba(0, 0, 0, 0.65);
  backdrop-filter: none;
}

.hero-ladder-card:hover {
  border-color: rgba(245, 158, 11, 0.45);
  box-shadow: 12px 12px 0px rgba(0, 0, 0, 0.78);
}

.hero-ladder-header {
  margin-bottom: 1.15rem;
  padding-bottom: 0;
  border-bottom: none;
}

.hero-ladder-header h3 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #f59e0b;
}

.ladder-nodes-stack {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* Subtle vertical dashed amber schematic connector line between nodes */
.ladder-nodes-stack::before {
  content: "";
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 22px;
  width: 1px;
  border-left: 1.5px dashed rgba(245, 158, 11, 0.4);
  pointer-events: none;
  z-index: 0;
}

.hero-ladder-card .ladder-step {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 1.05rem 1.15rem;
  margin-bottom: 0;
  border-radius: 2px;
  background: rgba(15, 22, 35, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.22);
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.hero-ladder-card .ladder-step.ladder-node-active {
  border: 1px solid rgba(245, 158, 11, 0.65);
  background: rgba(245, 158, 11, 0.06);
}

.hero-ladder-card .ladder-step:hover {
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.08);
  transform: translateX(2px);
  box-shadow: none;
}

.ladder-node-marker {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid #f59e0b;
  background: #0b0f17;
  margin-top: 0.28rem;
  flex-shrink: 0;
}

.ladder-step-body {
  min-width: 0;
}

.ladder-node-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 0.7rem;
}

.hero-ladder-card .ladder-step h4 {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.hero-ladder-card .ladder-step p {
  font-size: 0.82rem;
  color: #94a3b8;
  line-height: 1.4;
}

.hero-ladder-card .ladder-thumb {
  width: 52px;
  height: 40px;
  object-fit: cover;
  border-radius: 2px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: #080c14;
  flex-shrink: 0;
}

.ladder-node-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-top: 0.45rem;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  font-family: var(--font-mono);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ladder-spec-amber {
  color: #f59e0b;
}

.ladder-status-emerald {
  color: #10b981;
}

/* 3. Sharp Architectural Styling Across Workspace Tabs, Pills, Panels & Cards */
.workspace-tabs,
.workspace-tab,
.preset-btn,
.appliance-cat-btn {
  border-radius: 2px;
}

.calc-panel,
.telemetry-panel,
.catalog-toolbar,
.product-card,
.blueprint-card,
.guide-card,
.faq-item {
  border-radius: 2px;
  box-shadow: 8px 8px 0px rgba(0, 0, 0, 0.45);
}

@media (max-width: 1080px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
  .header-telemetry-status {
    display: none;
  }
}

@media (max-width: 680px) {
  .trust-metrics {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  .nav-links a {
    padding: 0.65rem 0.25rem;
  }
}