/* ==========================================================================
   OpusXL Software (opusxl.com) — Dark Gunmetal Industrial-Corporate UI System
   Architecture: Zero External Dependencies • Pure CSS3 • Responsive Grid
   ========================================================================== */

:root {
  --bg-deep: #0B0E14;
  --bg-surface: #121721;
  --bg-elevated: #171E2C;
  --bg-glass: rgba(18, 23, 33, 0.88);
  --bg-input: #0D1119;

  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --accent-blue: #0EA5E9;
  --accent-blue-bright: #38BDF8;
  --accent-blue-glow: rgba(14, 165, 233, 0.22);

  --accent-emerald: #10B981;
  --accent-emerald-deep: #22A66E;
  --accent-emerald-glow: rgba(16, 185, 129, 0.22);

  --accent-amber: #F59E0B;
  --accent-amber-glow: rgba(245, 158, 11, 0.18);

  --border-subtle: rgba(148, 163, 184, 0.14);
  --border-metallic: rgba(148, 163, 184, 0.24);
  --border-blue: rgba(56, 189, 248, 0.42);
  --border-emerald: rgba(16, 185, 129, 0.42);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-panel: 0 14px 34px -8px rgba(0, 0, 0, 0.65), 0 1px 0 0 rgba(255, 255, 255, 0.06) inset;
  --shadow-glow-blue: 0 0 24px rgba(14, 165, 233, 0.18);
  --shadow-glow-emerald: 0 0 24px rgba(16, 185, 129, 0.18);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;

  --container-max: 1240px;
}

/* Language Visibility Engine (Zero-Flicker DOM Switching) */
html[data-active-lang="tr"] .lang-en {
  display: none !important;
}
html[data-active-lang="en"] .lang-tr {
  display: none !important;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(14, 165, 233, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(16, 185, 129, 0.07) 0%, transparent 40%),
    linear-gradient(to right, rgba(148, 163, 184, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 36px 36px, 36px 36px;
  background-attachment: fixed;
  color: var(--text-primary);
  overflow-x: hidden;
}

a {
  color: var(--accent-blue-bright);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
}

a:hover {
  color: #7DD3FC;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   1. Top Corporate Navigation Bar & TR / EN Switcher
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-link:hover {
  color: #FFFFFF;
}

.brand-logo-svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  filter: drop-shadow(0 0 10px rgba(14, 165, 233, 0.28));
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-title {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  display: inline-block;
  white-space: nowrap;
}

.brand-title .xl-accent {
  background: linear-gradient(135deg, var(--accent-blue-bright), var(--accent-emerald));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-subtitle {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-Group {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-links li {
  white-space: nowrap;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.65rem;
  border-radius: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  background: transparent;
  border: none;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: transparent;
  border: none;
}

/* 3-Group Corporate Mega-Dropdown Menu ("Ürünler / Products") */
.nav-dropdown {
  position: relative;
  white-space: nowrap;
}

.nav-dropdown-trigger {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.65rem;
  border-radius: 0;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: inherit;
  background: transparent;
  border: none;
  outline: none;
  box-shadow: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s ease;
}

.nav-dropdown-trigger:hover,
.nav-dropdown.open .nav-dropdown-trigger,
.nav-dropdown-trigger.active {
  color: var(--text-primary);
  background: transparent;
  border: none;
  box-shadow: none;
}

.nav-dropdown-caret {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .nav-dropdown-caret,
.nav-dropdown.open .nav-dropdown-caret {
  transform: rotate(180deg);
}

.mega-dropdown-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: -140px;
  width: 780px;
  background: linear-gradient(165deg, #141B28 0%, #0C1018 100%);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-md);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.8), 0 0 24px rgba(14, 165, 233, 0.16);
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 1100;
}

/* Hover bridge so cursor moving from trigger to panel never loses hover */
.mega-dropdown-panel::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

@media (min-width: 769px) {
  .nav-dropdown:hover .mega-dropdown-panel,
  .nav-dropdown:focus-within .mega-dropdown-panel,
  .nav-dropdown.open .mega-dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

.mega-dropdown-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.mega-group {
  background: rgba(11, 14, 20, 0.55);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.mega-group-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-blue-bright);
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 0.15rem;
}

.mega-group-title.emerald {
  color: #34D399;
}

.mega-group-title.amber {
  color: #FBBF24;
}

.mega-item-link {
  display: flex !important;
  flex-direction: column;
  align-items: flex-start !important;
  gap: 0.2rem !important;
  padding: 0.6rem 0.7rem !important;
  border-radius: 6px !important;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid transparent !important;
  transition: all 0.18s ease;
}

.mega-item-link:hover {
  background: rgba(14, 165, 233, 0.1) !important;
  border-color: var(--border-blue) !important;
  transform: translateX(2px);
}

.mega-item-name {
  font-size: 0.86rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.mega-item-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

.mega-dropdown-footer {
  margin-top: 0.95rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.mega-footer-link {
  display: inline-flex !important;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.8rem !important;
  font-weight: 700 !important;
  color: var(--accent-blue-bright) !important;
  padding: 0.4rem 0.75rem !important;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid var(--border-blue) !important;
  border-radius: 6px !important;
}

.mega-footer-link:hover {
  background: rgba(14, 165, 233, 0.2) !important;
  color: #FFFFFF !important;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Single-Click TR / EN Language Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.6);
}

.lang-btn {
  appearance: none;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.32rem 0.68rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.18s ease;
  letter-spacing: 0.04em;
}

.lang-btn:hover {
  color: var(--text-primary);
}

.lang-btn.active {
  background: linear-gradient(135deg, #0284C7, #0EA5E9);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.35);
}

/* Light / Dark Corporate Theme Switcher Button */
.theme-toggle-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 34px;
  background: var(--bg-input);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
  flex-shrink: 0;
}

.theme-toggle-btn:hover {
  color: var(--accent-blue-bright);
  border-color: var(--border-blue);
  background: var(--bg-elevated);
}

.theme-toggle-btn svg {
  width: 17px;
  height: 17px;
}

.theme-toggle-btn .icon-sun {
  display: inline-block;
}

.theme-toggle-btn .icon-moon {
  display: none;
}

html[data-theme="light"] .theme-toggle-btn .icon-sun {
  display: none;
}

html[data-theme="light"] .theme-toggle-btn .icon-moon {
  display: inline-block;
}

.mobile-menu-btn {
  display: none;
  appearance: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-metallic);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* ==========================================================================
   2. Hero Section (Engineering & Productivity Showcase)
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid var(--border-blue);
  border-radius: 999px;
  color: var(--accent-blue-bright);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.hero-title {
  font-size: clamp(1.6rem, 2.5vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1.15rem;
  color: var(--text-primary);
}

.hero-title .highlight-blue {
  background: linear-gradient(90deg, #38BDF8, #0EA5E9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-title .highlight-emerald {
  background: linear-gradient(90deg, #34D399, #10B981);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.78rem 1.35rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background: linear-gradient(180deg, #0EA5E9 0%, #0284C7 100%);
  color: #FFFFFF;
  border-color: rgba(125, 211, 252, 0.4);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #38BDF8 0%, #0EA5E9 100%);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(14, 165, 233, 0.45);
}

.btn-emerald {
  background: linear-gradient(180deg, #22A66E 0%, #059669 100%);
  color: #FFFFFF;
  border-color: rgba(110, 231, 183, 0.4);
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn-emerald:hover {
  background: linear-gradient(180deg, #10B981 0%, #047857 100%);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(16, 185, 129, 0.42);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-metallic);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.btn-secondary:hover {
  background: #1E283A;
  color: #FFFFFF;
  border-color: var(--border-blue);
}

.btn-disabled-status {
  background: rgba(245, 158, 11, 0.1);
  color: #FBBF24;
  border-color: rgba(245, 158, 11, 0.38);
  cursor: default;
  font-family: var(--font-mono);
  font-size: 0.83rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.metric-box {
  background: rgba(18, 23, 33, 0.65);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-blue);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
}

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

.metric-box.amber {
  border-left-color: var(--accent-amber);
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
}

.metric-lbl {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* Right Hero Telemetry Schematic Panel */
.hero-telemetry-card {
  background: linear-gradient(160deg, #151C28 0%, #0E131B 100%);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-panel);
  position: relative;
}

.telemetry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.telemetry-dots {
  display: flex;
  gap: 6px;
}

.telemetry-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.telemetry-svg-stage {
  width: 100%;
  background: #090C12;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1rem;
}

.telemetry-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.telemetry-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-subtle);
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

.telemetry-item code {
  font-family: var(--font-mono);
  color: var(--accent-blue-bright);
  font-size: 0.76rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-pill.green {
  background: rgba(16, 185, 129, 0.14);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.status-pill.blue {
  background: rgba(14, 165, 233, 0.14);
  color: #38BDF8;
  border: 1px solid rgba(14, 165, 233, 0.35);
}

.status-pill.amber {
  background: rgba(245, 158, 11, 0.14);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

/* ==========================================================================
   3. Section Headers & Product Showcase Cards
   ========================================================================== */
.section-block {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  max-width: 780px;
  margin-bottom: 2.75rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent-blue-bright);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.32rem, 2vw, 1.72rem);
  font-weight: 650;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.018em;
  margin-bottom: 0.7rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

.products-stack {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.product-card {
  background: linear-gradient(165deg, var(--bg-surface) 0%, #0E131C 100%);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-panel);
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-emerald));
}

.product-card.card-notexl:hover {
  border-color: var(--border-emerald);
  box-shadow: var(--shadow-panel), var(--shadow-glow-emerald);
}

.product-card.card-cadxl::before {
  background: linear-gradient(90deg, #38BDF8, #F59E0B);
}

.product-card.card-cadxl:hover {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-panel), var(--shadow-glow-blue);
}

.product-card.card-geoxl::before {
  background: linear-gradient(90deg, #10B981, #0EA5E9);
}

.product-card.card-geoxl:hover {
  border-color: var(--border-emerald);
  box-shadow: var(--shadow-panel), var(--shadow-glow-emerald);
}

.product-top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.product-identity {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.product-icon-box {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-metallic);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 6px 16px rgba(0, 0, 0, 0.45);
}

.product-icon-box svg {
  width: 36px;
  height: 36px;
}

.product-name-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.25rem;
}

.product-name {
  font-size: 1.26rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.015em;
}

.product-pkg-badge {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-secondary);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
}

.product-tagline {
  color: var(--text-secondary);
  font-size: 0.96rem;
  font-weight: 500;
}

.product-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.product-body-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 2rem;
  align-items: start;
}

.product-description {
  color: var(--text-secondary);
  margin-bottom: 1.35rem;
  font-size: 0.96rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
}

.feature-item {
  background: rgba(11, 14, 20, 0.55);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
}

.feature-item-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.feature-item-title svg {
  width: 16px;
  height: 16px;
  color: var(--accent-blue-bright);
  flex-shrink: 0;
}

.feature-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Right Action & Download Panel inside Product Card */
.product-action-panel {
  background: var(--bg-input);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.action-panel-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}

.spec-meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.48rem;
  font-size: 0.82rem;
}

.spec-meta-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.spec-meta-list li strong {
  color: var(--text-primary);
  font-weight: 600;
  text-align: right;
}

.spec-meta-list code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-blue-bright);
}

.action-buttons-stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding-top: 0.4rem;
}

.action-buttons-stack .btn {
  width: 100%;
}

.action-sublinks {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.78rem;
}

/* ==========================================================================
   4. Software Download Center Matrix & Architecture Section
   ========================================================================== */
.download-table-wrap {
  background: var(--bg-surface);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-panel);
}

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

.engineering-table th {
  background: #0D121B;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-metallic);
}

.engineering-table td {
  padding: 1.05rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.engineering-table tr:last-child td {
  border-bottom: none;
}

.engineering-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.engineering-table td strong {
  color: #FFFFFF;
}

.engineering-table code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  color: var(--accent-blue-bright);
}

/* ==========================================================================
   5. Legal & Compliance Pages (/privacy, /privacy/notexl, /terms, etc.)
   ========================================================================== */
.legal-hero {
  padding: 3rem 0 2.25rem;
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(14, 165, 233, 0.05) 0%, transparent 100%);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.breadcrumb span.sep {
  color: var(--text-muted);
}

.legal-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.legal-meta-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}

.legal-meta-card .lbl {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.2rem;
}

.legal-meta-card .val {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
}

.legal-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2.25rem;
  padding: 3rem 0 4.5rem;
  align-items: start;
}

.legal-sidebar {
  position: sticky;
  top: 92px;
  background: var(--bg-surface);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.sidebar-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: rgba(14, 165, 233, 0.1);
  color: #FFFFFF;
  border-color: var(--border-blue);
}

.legal-content-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-panel);
}

.legal-content-card h2 {
  font-size: 1.18rem;
  font-weight: 650;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 2rem 0 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.legal-content-card h2:first-child {
  margin-top: 0;
}

.legal-content-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-blue-bright);
  margin: 1.35rem 0 0.5rem;
}

.legal-content-card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.legal-content-card ul,
.legal-content-card ol {
  margin: 0 0 1.25rem 1.35rem;
  color: var(--text-secondary);
  font-size: 0.94rem;
}

.legal-content-card li {
  margin-bottom: 0.55rem;
}

.legal-content-card li strong {
  color: var(--text-primary);
}

.legal-content-card code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  color: var(--accent-blue-bright);
}

.callout-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid var(--border-emerald);
  border-left: 4px solid var(--accent-emerald);
  border-radius: var(--radius-sm);
  padding: 1.15rem 1.35rem;
  margin: 1.25rem 0;
}

.callout-box.blue {
  background: rgba(14, 165, 233, 0.08);
  border-color: var(--border-blue);
  border-left-color: var(--accent-blue);
}

.callout-box.amber {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.4);
  border-left-color: var(--accent-amber);
}

.callout-title {
  font-weight: 700;
  color: #FFFFFF;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.policy-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

.policy-hub-card {
  background: var(--bg-input);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.policy-hub-card:hover {
  border-color: var(--border-blue);
  transform: translateY(-2px);
}

/* ==========================================================================
   6. Corporate Footer
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: #080A0F;
  border-top: 1px solid var(--border-metallic);
  padding: 3.5rem 0 2rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.86rem;
}

.footer-links a:hover {
  color: var(--accent-blue-bright);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   6.5. Alternating Scrollable Product Showcase Stages & Public Standards
   ========================================================================== */
.showcase-band {
  padding: 4.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.showcase-band.alt-surface {
  background: linear-gradient(180deg, rgba(18, 23, 33, 0.65) 0%, rgba(11, 14, 20, 0.9) 100%);
}

.showcase-row {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 2.75rem;
  align-items: center;
}

.showcase-row.reverse {
  grid-template-columns: 0.88fr 1.12fr;
}

.showcase-row.reverse .showcase-visual-col {
  order: 2;
}

.showcase-row.reverse .showcase-info-col {
  order: 1;
}

.showcase-visual-frame {
  background: linear-gradient(165deg, #161E2E 0%, #0C1018 100%);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-lg);
  padding: 0.85rem;
  box-shadow: var(--shadow-panel);
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.showcase-visual-frame:hover {
  transform: translateY(-3px);
  border-color: var(--border-blue);
  box-shadow: var(--shadow-panel), var(--shadow-glow-blue);
}

.showcase-visual-frame.emerald-frame:hover {
  border-color: var(--border-emerald);
  box-shadow: var(--shadow-panel), var(--shadow-glow-emerald);
}

.showcase-frame-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.65rem 0.65rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
}

.showcase-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  background: #080C12;
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.showcase-caption-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.65rem;
  padding: 0.45rem 0.65rem 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--text-secondary);
}

.showcase-info-col {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.showcase-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent-blue-bright);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.showcase-kicker.emerald {
  color: #34D399;
}

.showcase-kicker.amber {
  color: #FBBF24;
}

.showcase-heading {
  font-size: clamp(1.28rem, 1.85vw, 1.65rem);
  font-weight: 650;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.018em;
}

.showcase-lead {
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.65;
}

.showcase-spec-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin: 0.25rem 0;
}

.showcase-spec-points li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  background: rgba(18, 23, 33, 0.75);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.95rem;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.showcase-spec-points li strong {
  color: var(--text-primary);
}

.spec-bullet-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: rgba(14, 165, 233, 0.14);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--accent-blue-bright);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.spec-bullet-icon.emerald {
  background: rgba(16, 185, 129, 0.14);
  border-color: rgba(16, 185, 129, 0.35);
  color: #34D399;
}

.showcase-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.35rem;
}

/* Public Institutions & Engineering Standards Block */
.standards-strip {
  padding: 4.5rem 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(14, 165, 233, 0.1) 0%, transparent 60%),
    linear-gradient(180deg, #0D121B 0%, #090C12 100%);
  border-bottom: 1px solid var(--border-metallic);
}

.institution-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.25rem 0 2.25rem;
}

.institution-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(23, 30, 44, 0.9);
  border: 1px solid var(--border-metallic);
  padding: 0.42rem 0.85rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-primary);
}

.institution-pill span.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-blue-bright);
}

.standards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.standard-pillar-card {
  background: linear-gradient(165deg, var(--bg-surface) 0%, #0D121B 100%);
  border: 1px solid var(--border-metallic);
  border-top: 3px solid var(--accent-blue);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-panel);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.standard-pillar-card.emerald-top {
  border-top-color: var(--accent-emerald);
}

.standard-pillar-card.amber-top {
  border-top-color: var(--accent-amber);
}

.standard-pillar-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
}

.standard-pillar-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.standard-code-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.standard-code-tags code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--accent-blue-bright);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

/* Downloads & Products Dedicated Pages Styling */
.download-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.download-center-card {
  background: linear-gradient(165deg, var(--bg-surface) 0%, #0D121A 100%);
  border: 1px solid var(--border-metallic);
  border-radius: var(--radius-lg);
  padding: 1.85rem;
  box-shadow: var(--shadow-panel);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
}

.download-center-card.featured-cadxl {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-panel), var(--shadow-glow-blue);
}

.sha256-box {
  background: #080B10;
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-amber);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-secondary);
  word-break: break-all;
}

.sha256-box strong {
  color: #FBBF24;
  display: block;
  margin-bottom: 0.2rem;
}

/* ==========================================================================
   7. Responsive Breakpoints (Tablet & Mobile)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid,
  .product-body-grid,
  .legal-layout,
  .showcase-row,
  .showcase-row.reverse,
  .standards-grid,
  .download-cards-grid {
    grid-template-columns: 1fr;
  }

  .showcase-row.reverse .showcase-visual-col,
  .showcase-row.reverse .showcase-info-col {
    order: initial;
  }

  .legal-sidebar {
    position: static;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-metallic);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.65);
  }

  .nav-links.open {
    display: flex;
  }

  .mega-dropdown-panel {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    margin-top: 0.4rem;
    padding: 0.85rem;
    box-shadow: none;
  }

  .nav-dropdown.open .mega-dropdown-panel {
    display: block;
  }

  .mega-dropdown-grid {
    grid-template-columns: 1fr;
  }

  .mega-dropdown-footer {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .hero-metrics,
  .feature-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .product-card,
  .legal-content-card {
    padding: 1.4rem;
  }
}

/* ==========================================================================
   8. Corporate Light Theme Overrides (html[data-theme="light"])
   ========================================================================== */
html[data-theme="light"] {
  --bg-deep: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-elevated: #F1F5F9;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --bg-input: #F1F5F9;

  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;

  --accent-blue: #0284C7;
  --accent-blue-bright: #0369A1;
  --accent-blue-glow: rgba(2, 132, 199, 0.14);

  --accent-emerald: #059669;
  --accent-emerald-deep: #047857;
  --accent-emerald-glow: rgba(5, 150, 105, 0.14);

  --border-subtle: #E2E8F0;
  --border-metallic: #CBD5E1;
  --border-blue: rgba(2, 132, 199, 0.38);
  --border-emerald: rgba(5, 150, 105, 0.38);

  --shadow-panel: 0 10px 28px -6px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
}

html[data-theme="light"] body {
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(2, 132, 199, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(5, 150, 105, 0.05) 0%, transparent 40%),
    linear-gradient(to right, rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
  color: var(--text-primary);
}

html[data-theme="light"] .site-header {
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

html[data-theme="light"] .brand-link:hover,
html[data-theme="light"] .mega-item-name,
html[data-theme="light"] .metric-val,
html[data-theme="light"] .engineering-table td strong,
html[data-theme="light"] .callout-title,
html[data-theme="light"] .footer-col h4,
html[data-theme="light"] .standard-pillar-card h3 {
  color: #0F172A;
}

html[data-theme="light"] .nav-links a:hover,
html[data-theme="light"] .nav-links a.active,
html[data-theme="light"] .nav-dropdown-trigger:hover,
html[data-theme="light"] .nav-dropdown.open .nav-dropdown-trigger,
html[data-theme="light"] .nav-dropdown-trigger.active {
  background: transparent;
  border: none;
  box-shadow: none;
  color: #0F172A;
}

html[data-theme="light"] .mega-dropdown-panel {
  background: #FFFFFF;
  border-color: #CBD5E1;
  box-shadow: 0 20px 42px rgba(15, 23, 42, 0.14);
}

html[data-theme="light"] .mega-group {
  background: #F8FAFC;
  border-color: #E2E8F0;
}

html[data-theme="light"] .mega-item-link {
  background: #FFFFFF;
  border-color: #E2E8F0 !important;
}

html[data-theme="light"] .mega-item-link:hover {
  background: #F0F9FF !important;
  border-color: #38BDF8 !important;
}

html[data-theme="light"] .mega-footer-link:hover {
  color: #0369A1 !important;
}

html[data-theme="light"] .lang-switcher {
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.06);
}

html[data-theme="light"] .btn-secondary {
  background: #FFFFFF;
  color: #0F172A;
  border-color: #CBD5E1;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

html[data-theme="light"] .btn-secondary:hover {
  background: #F1F5F9;
  color: #0284C7;
  border-color: #38BDF8;
}

html[data-theme="light"] .metric-box,
html[data-theme="light"] .feature-item,
html[data-theme="light"] .showcase-spec-points li {
  background: #FFFFFF;
  border-color: #E2E8F0;
}

html[data-theme="light"] .hero-telemetry-card,
html[data-theme="light"] .product-card,
html[data-theme="light"] .standard-pillar-card,
html[data-theme="light"] .download-center-card,
html[data-theme="light"] .showcase-visual-frame {
  background: #FFFFFF;
  border-color: #CBD5E1;
}

html[data-theme="light"] .telemetry-item {
  background: #F8FAFC;
  border-color: #E2E8F0;
}

html[data-theme="light"] .showcase-band.alt-surface {
  background: linear-gradient(180deg, #F1F5F9 0%, #F8FAFC 100%);
}

html[data-theme="light"] .standards-strip {
  background:
    radial-gradient(circle at 50% 0%, rgba(2, 132, 199, 0.07) 0%, transparent 60%),
    linear-gradient(180deg, #F1F5F9 0%, #E2E8F0 100%);
  border-bottom-color: #CBD5E1;
}

html[data-theme="light"] .institution-pill {
  background: #FFFFFF;
  border-color: #CBD5E1;
  color: #0F172A;
}

html[data-theme="light"] .engineering-table th {
  background: #F1F5F9;
  color: #0F172A;
  border-bottom-color: #CBD5E1;
}

html[data-theme="light"] .engineering-table tr:hover td {
  background: #F8FAFC;
}

html[data-theme="light"] .sha256-box {
  background: #F8FAFC;
  border-color: #CBD5E1;
  color: #334155;
}

html[data-theme="light"] .sha256-box strong {
  color: #B45309;
}

html[data-theme="light"] .status-pill.green {
  background: rgba(5, 150, 105, 0.12);
  color: #047857;
  border-color: rgba(5, 150, 105, 0.32);
}

html[data-theme="light"] .status-pill.blue {
  background: rgba(2, 132, 199, 0.12);
  color: #0369A1;
  border-color: rgba(2, 132, 199, 0.32);
}

html[data-theme="light"] .status-pill.amber {
  background: rgba(217, 119, 6, 0.12);
  color: #B45309;
  border-color: rgba(217, 119, 6, 0.32);
}

html[data-theme="light"] .sidebar-nav a:hover,
html[data-theme="light"] .sidebar-nav a.active {
  background: #F0F9FF;
  color: #0284C7;
  border-color: #38BDF8;
}

html[data-theme="light"] .site-footer {
  background: #F1F5F9;
  border-top-color: #CBD5E1;
  color: #334155;
}



.product-icon-box {
  overflow: hidden;
}

.product-icon-box img,
.product-app-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
  display: block;
}

.download-card-head-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.5rem;
}

.download-card-app-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border-metallic);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.45);
}