/* ==========================================================================
   BIOSAPIENCE.COM — GLASSMORPHISM + NEUMORPHISM HYBRID (INTERACTIVE LAB FEEL)
   High-tech biological research laboratory UI design system
   Frosted glass panels, soft extruded controls, and layered translucent cards
   over vibrant scientific bioluminescent backgrounds.
   ========================================================================== */

:root {
  /* Scientific Bioluminescent Colors */
  --lab-gold: #FFCC00;
  --lab-gold-glow: rgba(255, 204, 0, 0.45);
  --lab-gold-subtle: rgba(255, 204, 0, 0.12);
  
  --lab-cyan: #00E5FF;
  --lab-cyan-glow: rgba(0, 229, 255, 0.45);
  --lab-cyan-subtle: rgba(0, 229, 255, 0.12);

  --lab-emerald: #00FF9D;
  --lab-emerald-glow: rgba(0, 255, 157, 0.4);

  --lab-coral: #FF5376;
  --lab-coral-glow: rgba(255, 83, 118, 0.4);

  /* Deep Laboratory Dark Canvas */
  --lab-canvas: #07090E;
  --lab-canvas-secondary: #0D111A;
  --lab-canvas-tertiary: #131826;

  /* Glassmorphic Translucent Panels */
  --glass-panel-bg: rgba(15, 20, 32, 0.65);
  --glass-panel-subtle: rgba(12, 16, 26, 0.5);
  --glass-panel-elevated: rgba(22, 28, 44, 0.78);
  --glass-border: rgba(255, 255, 255, 0.11);
  --glass-border-light: rgba(255, 255, 255, 0.22);
  --glass-border-gold: rgba(255, 204, 0, 0.42);
  --glass-border-cyan: rgba(0, 229, 255, 0.42);
  --glass-blur: blur(20px) saturate(190%);
  --glass-blur-sm: blur(12px) saturate(170%);
  --glass-blur-lg: blur(28px) saturate(200%);

  /* Dual-Shadow Glass Elevation */
  --glass-shadow: 0 16px 36px -4px rgba(0, 0, 0, 0.55), 
                  0 4px 12px rgba(0, 0, 0, 0.35), 
                  inset 0 1px 1px 0 rgba(255, 255, 255, 0.18);
  --glass-shadow-hover: 0 24px 48px -6px rgba(0, 0, 0, 0.65), 
                        0 0 24px rgba(255, 204, 0, 0.2), 
                        inset 0 1px 2px 0 rgba(255, 255, 255, 0.28);
  --glass-shadow-cyan-hover: 0 24px 48px -6px rgba(0, 0, 0, 0.65), 
                             0 0 24px rgba(0, 229, 255, 0.22), 
                             inset 0 1px 2px 0 rgba(255, 255, 255, 0.28);

  /* Neumorphic Extruded & Sunken Surfaces */
  --neu-surface: linear-gradient(145deg, rgba(28, 36, 54, 0.88), rgba(15, 19, 30, 0.92));
  --neu-surface-hover: linear-gradient(145deg, rgba(36, 46, 68, 0.94), rgba(20, 26, 40, 0.96));
  --neu-surface-sunken: rgba(9, 12, 19, 0.92);
  
  --neu-extruded-shadow: -4px -4px 10px rgba(255, 255, 255, 0.06), 5px 5px 15px rgba(0, 0, 0, 0.7);
  --neu-extruded-sm: -2px -2px 6px rgba(255, 255, 255, 0.05), 3px 3px 8px rgba(0, 0, 0, 0.6);
  --neu-extruded-hover: -3px -3px 8px rgba(255, 255, 255, 0.08), 6px 6px 18px rgba(0, 0, 0, 0.75), 0 0 14px var(--lab-gold-glow);
  --neu-sunken-shadow: inset 3px 3px 7px rgba(0, 0, 0, 0.8), inset -3px -3px 7px rgba(255, 255, 255, 0.05);

  /* Radii */
  --radius-card: 16px;
  --radius-panel: 14px;
  --radius-btn: 10px;
  --radius-pill: 9999px;
}

/* ==========================================================================
   1. GLOBAL CANVAS & BIOLUMINESCENT LAB BACKGROUND
   ========================================================================== */

html, body {
  background-color: var(--lab-canvas) !important;
}

body {
  background-color: #07090E !important;
  background-image: 
    radial-gradient(circle at 12% 12%, rgba(0, 229, 255, 0.09) 0%, transparent 48%),
    radial-gradient(circle at 88% 18%, rgba(255, 204, 0, 0.08) 0%, transparent 42%),
    radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.06) 0%, transparent 55%),
    radial-gradient(circle at 20% 82%, rgba(0, 255, 157, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 80% 85%, rgba(255, 83, 118, 0.05) 0%, transparent 40%),
    radial-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px) !important;
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 30px 30px !important;
  background-attachment: fixed !important;
  color: #E2E8F0 !important;
  font-family: var(--font-sans), 'Inter', -apple-system, sans-serif !important;
  min-height: 100vh;
}

/* ==========================================================================
   2. STICKY FROSTED GLASS HEADER & GLOBAL NAV
   ========================================================================== */

.site-header {
  background: rgba(8, 11, 18, 0.76) !important;
  backdrop-filter: var(--glass-blur-lg) !important;
  -webkit-backdrop-filter: var(--glass-blur-lg) !important;
  border-bottom: 1px solid var(--glass-border) !important;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6), inset 0 -1px 0 0 rgba(255, 255, 255, 0.05) !important;
  position: sticky !important;
  top: 0 !important;
  z-index: 1000 !important;
}

/* Reading Progress Bar (Bioluminescent Gradient) */
.reading-progress-bar {
  background: linear-gradient(90deg, #00E5FF, #FFCC00 60%, #00FF9D) !important;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.7), 0 0 4px #FFCC00 !important;
  height: 3px !important;
}

/* Brand Mark & Text */
.brand-site-logo {
  border-radius: 8px !important;
  border: 1px solid rgba(255, 204, 0, 0.3) !important;
  box-shadow: 0 0 14px rgba(255, 204, 0, 0.25) !important;
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.brand-logo:hover .brand-site-logo {
  transform: scale(1.06) rotate(3deg) !important;
  box-shadow: 0 0 20px rgba(255, 204, 0, 0.45) !important;
}

.brand-text {
  letter-spacing: -0.01em !important;
}

.brand-text span {
  color: var(--lab-gold) !important;
  text-shadow: 0 0 16px var(--lab-gold-glow) !important;
}

/* Navigation Links (Glass Chips) */
.nav-links li a {
  padding: 8px 14px !important;
  border-radius: var(--radius-pill) !important;
  border: 1px solid transparent !important;
  color: #CBD5E1 !important;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.nav-links li a:hover,
.nav-links li a.active,
.nav-links li a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.16) !important;
  color: #FFF !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  box-shadow: var(--neu-extruded-sm), 0 0 12px rgba(255, 204, 0, 0.2) !important;
}

/* Header Buttons: Neumorphic Extruded Controls */
.btn-icon,
.menu-toggle,
.theme-toggle {
  background: var(--neu-surface) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-pill) !important;
  box-shadow: var(--neu-extruded-sm) !important;
  color: #F8FAFC !important;
  cursor: pointer !important;
  padding: 8px 16px !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.btn-icon:hover,
.menu-toggle:hover,
.theme-toggle:hover {
  background: var(--neu-surface-hover) !important;
  border-color: var(--glass-border-gold) !important;
  box-shadow: var(--neu-extruded-hover) !important;
  color: var(--lab-gold) !important;
  transform: translateY(-2px) !important;
}

.btn-icon:active,
.menu-toggle:active,
.theme-toggle:active {
  box-shadow: var(--neu-sunken-shadow) !important;
  transform: translateY(0) !important;
}

/* Search Modal Overlay (Frosted Glass Chamber) */
.search-modal {
  background: rgba(5, 7, 12, 0.8) !important;
  backdrop-filter: var(--glass-blur-lg) !important;
  -webkit-backdrop-filter: var(--glass-blur-lg) !important;
}

.search-container {
  background: var(--glass-panel-elevated) !important;
  backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border-light) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.8), inset 0 1px 2px rgba(255, 255, 255, 0.25) !important;
}

.search-input-field {
  background: var(--neu-surface-sunken) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-control) !important;
  box-shadow: var(--neu-sunken-shadow) !important;
  color: #FFF !important;
  font-size: 1.1rem !important;
  padding: 16px 20px !important;
}

.search-input-field:focus {
  border-color: var(--lab-gold) !important;
  box-shadow: var(--neu-sunken-shadow), 0 0 0 3px rgba(255, 204, 0, 0.25) !important;
  outline: none !important;
}

/* ==========================================================================
   3. HERO BANNER (FROSTED GLASS SPECIMEN DISPLAY)
   ========================================================================== */

.hero,
.hero-page {
  position: relative !important;
  overflow: hidden !important;
  border-radius: var(--radius-card) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow) !important;
  margin-bottom: 40px !important;
  background: #0B0E17 !important;
}

.hero img,
.hero-page img {
  border-radius: var(--radius-card) !important;
  filter: brightness(0.9) contrast(1.05) !important;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.hero:hover img,
.hero-page:hover img {
  transform: scale(1.025) !important;
}

/* Frosted Glass Hero Copy Overlay */
.hero-copy {
  background: rgba(9, 13, 22, 0.74) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border-light) !important;
  border-radius: 14px !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), inset 0 1px 1px rgba(255, 255, 255, 0.2) !important;
  padding: 32px 36px !important;
}

.hero .kicker,
.hero-page .kicker {
  color: var(--lab-gold) !important;
  font-size: 0.78rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.16em !important;
  text-transform: uppercase !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
}

.hero .kicker::before,
.hero-page .kicker::before {
  content: '' !important;
  display: inline-block !important;
  width: 7px !important;
  height: 7px !important;
  border-radius: 50% !important;
  background: var(--lab-gold) !important;
  box-shadow: 0 0 8px var(--lab-gold) !important;
}

.hero h1,
.hero-page h1 {
  font-family: var(--font-serif), Georgia, serif !important;
  font-size: clamp(2rem, 4.5vw, 3.4rem) !important;
  font-weight: 800 !important;
  color: #FFF !important;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5) !important;
  line-height: 1.18 !important;
  margin: 12px 0 14px !important;
}

.hero .dek,
.hero-page .dek {
  color: #CBD5E1 !important;
  font-size: clamp(1rem, 1.8vw, 1.15rem) !important;
  line-height: 1.6 !important;
}

/* ==========================================================================
   4. TACTILE NEUMORPHIC BUTTONS & CONTROLS
   ========================================================================== */

.btn,
.btn-primary-yellow,
.science-btn {
  background: linear-gradient(145deg, #FFD533, #E6B800) !important;
  border: 1px solid rgba(255, 255, 255, 0.35) !important;
  border-radius: var(--radius-pill) !important;
  box-shadow: -3px -3px 8px rgba(255, 255, 255, 0.18), 
              5px 5px 14px rgba(0, 0, 0, 0.6), 
              0 0 16px rgba(255, 204, 0, 0.3) !important;
  color: #07090E !important;
  cursor: pointer !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-weight: 800 !important;
  font-size: 0.95rem !important;
  letter-spacing: 0.02em !important;
  padding: 12px 26px !important;
  text-decoration: none !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.btn:hover,
.btn-primary-yellow:hover,
.science-btn:hover {
  background: linear-gradient(145deg, #FFE066, #FFCC00) !important;
  box-shadow: -4px -4px 12px rgba(255, 255, 255, 0.25), 
              6px 6px 20px rgba(0, 0, 0, 0.7), 
              0 0 24px rgba(255, 204, 0, 0.5) !important;
  transform: translateY(-2px) !important;
  color: #000 !important;
}

.btn:active,
.btn-primary-yellow:active,
.science-btn:active {
  box-shadow: inset 3px 3px 6px rgba(0, 0, 0, 0.5), 
              inset -2px -2px 6px rgba(255, 255, 255, 0.25) !important;
  transform: translateY(0) !important;
}

.btn-ghost {
  background: var(--neu-surface) !important;
  border: 1px solid var(--glass-border-light) !important;
  border-radius: var(--radius-pill) !important;
  box-shadow: var(--neu-extruded-shadow) !important;
  color: #F8FAFC !important;
  cursor: pointer !important;
  display: inline-flex !important;
  align-items: center !important;
  font-weight: 700 !important;
  padding: 12px 24px !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.btn-ghost:hover {
  background: var(--neu-surface-hover) !important;
  border-color: var(--glass-border-cyan) !important;
  box-shadow: -3px -3px 8px rgba(255, 255, 255, 0.08), 
              6px 6px 18px rgba(0, 0, 0, 0.75), 
              0 0 16px var(--lab-cyan-glow) !important;
  color: var(--lab-cyan) !important;
  transform: translateY(-2px) !important;
}

.btn-ghost:active {
  box-shadow: var(--neu-sunken-shadow) !important;
  transform: translateY(0) !important;
}

/* ==========================================================================
   5. LAYERED TRANSLUCENT CARDS (GLASSMORPHISM)
   ========================================================================== */

.cards .card,
.quiz-card-link,
.promo-card,
.science-card {
  background: var(--glass-panel-bg) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--glass-shadow) !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden !important;
  position: relative !important;
  text-decoration: none !important;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

/* Top Edge Light Sheen */
.cards .card::before,
.quiz-card-link::before,
.promo-card::before,
.science-card::before {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  height: 1px !important;
  background: linear-gradient(90deg, transparent 5%, rgba(255, 255, 255, 0.28) 50%, transparent 95%) !important;
  z-index: 2 !important;
}

.cards .card:hover,
.quiz-card-link:hover,
.promo-card:hover,
.science-card:hover {
  background: var(--glass-panel-elevated) !important;
  border-color: var(--glass-border-gold) !important;
  box-shadow: var(--glass-shadow-hover) !important;
  transform: translateY(-6px) scale(1.008) !important;
}

.cards .card.card-lead:hover {
  border-color: var(--glass-border-cyan) !important;
  box-shadow: var(--glass-shadow-cyan-hover) !important;
}

/* Card Media / Thumbnail */
.card-media img,
.promo-thumb img {
  border-radius: 10px !important;
  transition: transform 0.4s ease, filter 0.4s ease !important;
}

.cards .card:hover .card-media img,
.promo-card:hover .promo-thumb img {
  transform: scale(1.03) !important;
  filter: brightness(1.05) !important;
}

/* Card Kicker Pill (Neumorphic Mini Chip) */
.card-kicker,
.promo-tag-pill {
  display: inline-flex !important;
  align-items: center !important;
  background: rgba(255, 204, 0, 0.12) !important;
  border: 1px solid rgba(255, 204, 0, 0.3) !important;
  border-radius: var(--radius-pill) !important;
  color: var(--lab-gold) !important;
  font-size: 0.72rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.1em !important;
  padding: 4px 10px !important;
  text-transform: uppercase !important;
  margin-bottom: 10px !important;
  width: fit-content !important;
  box-shadow: inset 1px 1px 2px rgba(255, 255, 255, 0.1) !important;
}

.card-title,
.promo-title {
  color: #FFF !important;
  font-family: var(--font-serif), Georgia, serif !important;
  font-size: 1.32rem !important;
  font-weight: 700 !important;
  line-height: 1.3 !important;
  margin-bottom: 8px !important;
}

.card-dek,
.promo-snippet {
  color: #94A3B8 !important;
  font-size: 0.95rem !important;
  line-height: 1.55 !important;
}

/* ==========================================================================
   6. FLOATING TABLE OF CONTENTS (TOC GLASS ASIDE)
   ========================================================================== */

.toc {
  background: rgba(14, 18, 28, 0.72) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-panel) !important;
  box-shadow: var(--glass-shadow) !important;
  padding: 24px 26px !important;
  position: sticky !important;
  top: 90px !important;
}

.toc p {
  color: #FFF !important;
  font-size: 0.84rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  margin-bottom: 16px !important;
  padding-bottom: 12px !important;
  border-bottom: 1px solid var(--glass-border) !important;
}

.toc p::before {
  content: '' !important;
  display: inline-block !important;
  width: 8px !important;
  height: 8px !important;
  border-radius: 50% !important;
  background: var(--lab-cyan) !important;
  box-shadow: 0 0 10px var(--lab-cyan) !important;
}

.toc ol {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}

.toc li {
  margin-bottom: 6px !important;
}

.toc a {
  display: block !important;
  padding: 6px 12px !important;
  border-radius: 8px !important;
  border: 1px solid transparent !important;
  color: #94A3B8 !important;
  font-size: 0.9rem !important;
  line-height: 1.4 !important;
  transition: all 0.2s ease !important;
}

.toc a:hover {
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
  color: #FFF !important;
  transform: translateX(4px) !important;
  box-shadow: var(--neu-extruded-sm) !important;
}

/* ==========================================================================
   7. PROSE TYPOGRAPHY & SCIENTIFIC CITATION ACCENTS
   ========================================================================== */

.prose {
  color: #E2E8F0 !important;
  font-size: 1.125rem !important;
  line-height: 1.72 !important;
}

.prose h2 {
  font-family: var(--font-serif), Georgia, serif !important;
  font-size: clamp(1.6rem, 3vw, 2.2rem) !important;
  font-weight: 800 !important;
  color: #FFF !important;
  margin: 44px 0 16px !important;
  padding-bottom: 12px !important;
  border-bottom: 1px solid var(--glass-border) !important;
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
}

.prose h2::before {
  content: '' !important;
  display: inline-block !important;
  width: 4px !important;
  height: 1.2em !important;
  background: linear-gradient(to bottom, var(--lab-gold), var(--lab-cyan)) !important;
  border-radius: 2px !important;
  box-shadow: 0 0 8px var(--lab-gold-glow) !important;
}

.prose p {
  margin-bottom: 22px !important;
}

.prose blockquote {
  background: rgba(14, 19, 30, 0.65) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border-left: 4px solid var(--lab-gold) !important;
  border-radius: 0 12px 12px 0 !important;
  box-shadow: var(--glass-shadow) !important;
  padding: 20px 24px !important;
  margin: 28px 0 !important;
  font-family: var(--font-serif), Georgia, serif !important;
  font-style: italic !important;
  color: #F1F5F9 !important;
}

/* Frosted Callout Boxes */
.band,
.callout {
  background: rgba(14, 19, 30, 0.72) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border) !important;
  border-left: 6px solid var(--lab-gold) !important;
  border-radius: var(--radius-panel) !important;
  box-shadow: var(--glass-shadow) !important;
  padding: 28px 32px !important;
  margin: 36px 0 !important;
}

.band h2,
.callout h2 {
  color: #FFF !important;
  margin-top: 6px !important;
  margin-bottom: 12px !important;
}

/* ==========================================================================
   8. INTERACTIVE LAB BENCHES & CODING STATIONS
   ========================================================================== */

/* Codon Bench / Tool Panel */
.tool-panel {
  background: rgba(13, 17, 28, 0.75) !important;
  backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border-light) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--glass-shadow), 0 0 30px rgba(0, 229, 255, 0.06) !important;
  padding: 30px 32px !important;
  margin: 32px 0 !important;
}

.field {
  display: flex !important;
  flex-direction: column !important;
  gap: 8px !important;
  font-weight: 700 !important;
  font-size: 0.92rem !important;
  color: #CBD5E1 !important;
  margin-bottom: 20px !important;
}

/* Sunken Neumorphic Input Fields */
input[type="search"],
input[type="text"],
input[type="email"],
textarea,
select {
  background: var(--neu-surface-sunken) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-control) !important;
  box-shadow: var(--neu-sunken-shadow) !important;
  color: #F8FAFC !important;
  font-family: var(--font-sans), sans-serif !important;
  font-size: 1rem !important;
  padding: 12px 18px !important;
  transition: all 0.25s ease !important;
}

input[type="search"]:focus,
input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
  border-color: var(--lab-gold) !important;
  box-shadow: var(--neu-sunken-shadow), 0 0 0 3px rgba(255, 204, 0, 0.25) !important;
  outline: none !important;
}

/* Codon Table Specimen Cells */
.codon-table {
  border-collapse: separate !important;
  border-spacing: 6px !important;
  margin: 24px 0 !important;
}

.codon-cell {
  background: rgba(20, 26, 40, 0.75) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  border-radius: 8px !important;
  box-shadow: var(--neu-extruded-sm) !important;
  padding: 10px 14px !important;
  cursor: pointer !important;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.codon-cell:hover {
  background: rgba(30, 38, 58, 0.9) !important;
  border-color: var(--lab-gold) !important;
  box-shadow: var(--neu-extruded-hover) !important;
  transform: translateY(-2px) scale(1.04) !important;
}

/* Interactive SVG Cell Stage */
.lab-stage {
  background: radial-gradient(circle at 50% 50%, rgba(18, 25, 42, 0.88) 0%, rgba(8, 11, 18, 0.96) 100%) !important;
  backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border-cyan) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--glass-shadow), 0 0 36px rgba(0, 229, 255, 0.12) !important;
  padding: 28px !important;
  margin: 32px 0 !important;
  position: relative !important;
}

/* Neumorphic Part Controls */
.part-controls button,
.eon-btn,
.centrifuge-gen-btn {
  background: var(--neu-surface) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-btn) !important;
  box-shadow: var(--neu-extruded-shadow) !important;
  color: #E2E8F0 !important;
  cursor: pointer !important;
  font-weight: 700 !important;
  padding: 10px 18px !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.part-controls button:hover,
.eon-btn:hover,
.centrifuge-gen-btn:hover {
  background: var(--neu-surface-hover) !important;
  border-color: var(--glass-border-gold) !important;
  box-shadow: var(--neu-extruded-hover) !important;
  color: var(--lab-gold) !important;
  transform: translateY(-2px) !important;
}

.part-controls button[aria-pressed="true"],
.eon-btn.active,
.centrifuge-gen-btn.active {
  background: linear-gradient(145deg, rgba(255, 204, 0, 0.22), rgba(255, 180, 0, 0.1)) !important;
  border-color: var(--lab-gold) !important;
  color: var(--lab-gold) !important;
  box-shadow: var(--neu-sunken-shadow), 0 0 16px rgba(255, 204, 0, 0.3) !important;
}

/* ==========================================================================
   9. INTERACTIVE QUIZ ENGINE & OPTIONS
   ========================================================================== */

.quiz-option {
  background: var(--neu-surface) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 12px !important;
  box-shadow: var(--neu-extruded-shadow) !important;
  color: #F1F5F9 !important;
  cursor: pointer !important;
  display: block !important;
  font-size: 1.05rem !important;
  font-weight: 600 !important;
  padding: 16px 20px !important;
  margin-bottom: 12px !important;
  text-align: left !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
  width: 100% !important;
}

.quiz-option:hover {
  background: var(--neu-surface-hover) !important;
  border-color: var(--glass-border-cyan) !important;
  box-shadow: -3px -3px 8px rgba(255, 255, 255, 0.08), 
              6px 6px 18px rgba(0, 0, 0, 0.75), 
              0 0 16px var(--lab-cyan-glow) !important;
  transform: translateX(4px) !important;
}

.quiz-option.is-correct {
  background: linear-gradient(145deg, rgba(0, 255, 157, 0.2), rgba(0, 200, 120, 0.1)) !important;
  border-color: var(--lab-emerald) !important;
  box-shadow: var(--neu-sunken-shadow), 0 0 20px var(--lab-emerald-glow) !important;
  color: #FFF !important;
}

.quiz-option.is-wrong {
  background: linear-gradient(145deg, rgba(255, 83, 118, 0.2), rgba(200, 50, 80, 0.1)) !important;
  border-color: var(--lab-coral) !important;
  box-shadow: var(--neu-sunken-shadow), 0 0 20px var(--lab-coral-glow) !important;
  color: #FFF !important;
}

/* ==========================================================================
   10. FILTERABLE DIRECTORIES & INDEX ROWS
   ========================================================================== */

.filter-bar {
  background: rgba(14, 18, 28, 0.7) !important;
  backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-panel) !important;
  box-shadow: var(--glass-shadow) !important;
  padding: 16px 22px !important;
  margin-bottom: 24px !important;
}

.index-row {
  background: rgba(16, 21, 33, 0.6) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  -webkit-backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 12px !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35) !important;
  margin-bottom: 12px !important;
  padding: 18px 22px !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.index-row:hover {
  background: var(--glass-panel-elevated) !important;
  border-color: var(--glass-border-cyan) !important;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.55), 0 0 16px var(--lab-cyan-glow) !important;
  transform: translateX(6px) !important;
}

.index-kicker {
  background: rgba(0, 229, 255, 0.12) !important;
  border: 1px solid rgba(0, 229, 255, 0.3) !important;
  border-radius: var(--radius-pill) !important;
  color: var(--lab-cyan) !important;
  font-size: 0.72rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.1em !important;
  padding: 3px 10px !important;
  text-transform: uppercase !important;
}

.index-title {
  color: #FFF !important;
  font-size: 1.15rem !important;
  font-weight: 700 !important;
}

.index-dek {
  color: #94A3B8 !important;
  font-size: 0.92rem !important;
  line-height: 1.5 !important;
}

/* ==========================================================================
   11. ENIGMAS / RIDDLES (INTERACTIVE ACCORDION SHELLS)
   ========================================================================== */

details {
  background: rgba(15, 20, 32, 0.65) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 12px !important;
  box-shadow: var(--glass-shadow) !important;
  margin-bottom: 16px !important;
  overflow: hidden !important;
  transition: all 0.3s ease !important;
}

details[open] {
  border-color: var(--glass-border-gold) !important;
  box-shadow: var(--glass-shadow-hover) !important;
  background: rgba(18, 24, 38, 0.8) !important;
}

summary {
  background: var(--neu-surface) !important;
  cursor: pointer !important;
  font-weight: 700 !important;
  font-size: 1.05rem !important;
  color: #FFF !important;
  padding: 16px 22px !important;
  transition: all 0.2s ease !important;
}

summary:hover {
  color: var(--lab-gold) !important;
}

/* ==========================================================================
   12. FOOTER (FROSTED OBSIDIAN BASE)
   ========================================================================== */

.site-footer {
  background: rgba(6, 8, 14, 0.88) !important;
  backdrop-filter: var(--glass-blur-lg) !important;
  -webkit-backdrop-filter: var(--glass-blur-lg) !important;
  border-top: 1px solid var(--glass-border) !important;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.6) !important;
  margin-top: 80px !important;
  padding: 48px 0 !important;
}

.footer-bottom {
  color: #64748B !important;
  font-size: 0.88rem !important;
}

/* ==========================================================================
   13. SELECTION & SCROLLBAR
   ========================================================================== */

::selection {
  background: rgba(255, 204, 0, 0.35) !important;
  color: #FFF !important;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #07090E;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 5px;
  border: 2px solid #07090E;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--lab-gold);
}


/* ==========================================================================
   14. CODON BENCH & GENETIC TRANSLATOR LAB ENHANCEMENTS
   ========================================================================== */

.code-scroll {
  overflow-x: auto !important;
  background: rgba(10, 14, 24, 0.7) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  -webkit-backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--glass-shadow) !important;
  padding: 18px !important;
  margin: 24px 0 !important;
}

.code-table {
  width: 100% !important;
  min-width: 46rem !important;
  border-collapse: separate !important;
  border-spacing: 5px !important;
  font-size: 0.92rem !important;
}

.code-table th {
  background: rgba(22, 28, 44, 0.8) !important;
  color: var(--lab-cyan) !important;
  font-family: var(--font-mono), monospace !important;
  font-size: 0.8rem !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  padding: 10px 12px !important;
  border-radius: 6px !important;
  border: 1px solid var(--glass-border) !important;
  text-align: center !important;
}

.code-table td.codon-cell {
  background: rgba(20, 26, 42, 0.75) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  border-radius: 8px !important;
  box-shadow: var(--neu-extruded-sm) !important;
  padding: 8px 12px !important;
  cursor: pointer !important;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
  color: #E2E8F0 !important;
  text-align: center !important;
}

.codon-cell strong {
  display: block !important;
  font-family: var(--font-mono), monospace !important;
  font-size: 0.88rem !important;
  color: #FFF !important;
  margin-bottom: 2px !important;
}

.code-table td.codon-cell:hover {
  background: rgba(30, 40, 62, 0.95) !important;
  border-color: var(--lab-gold) !important;
  box-shadow: var(--neu-extruded-hover), 0 0 16px rgba(255, 204, 0, 0.35) !important;
  transform: translateY(-2px) scale(1.03) !important;
}

.code-table td.codon-cell.is-hit {
  border-color: var(--lab-cyan) !important;
  box-shadow: 0 0 20px var(--lab-cyan-glow), inset 0 0 10px rgba(0, 229, 255, 0.25) !important;
  background: rgba(0, 229, 255, 0.22) !important;
  transform: translateY(-2px) scale(1.05) !important;
}

/* Genetic Code Biological Groups */
.kind-nonpolar { border-left: 3px solid #EAB308 !important; }
.kind-polar { border-left: 3px solid #38BDF8 !important; }
.kind-acidic { border-left: 3px solid #F43F5E !important; }
.kind-basic { border-left: 3px solid #818CF8 !important; }
.kind-stop { border-left: 3px solid #EF4444 !important; background: rgba(239, 68, 68, 0.16) !important; }
.kind-start { border: 1px solid var(--lab-emerald) !important; box-shadow: 0 0 12px var(--lab-emerald-glow) !important; }

/* Swatches & Legend */
.legend {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 10px 18px !important;
  padding: 12px 20px !important;
  background: rgba(14, 18, 28, 0.6) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border-radius: var(--radius-pill) !important;
  border: 1px solid var(--glass-border) !important;
  list-style: none !important;
  font-family: var(--font-mono), monospace !important;
  font-size: 0.78rem !important;
  color: #94A3B8 !important;
  margin: 16px 0 24px !important;
}

.legend li {
  display: flex !important;
  align-items: center !important;
  gap: 6px !important;
}

.swatch {
  width: 10px !important;
  height: 10px !important;
  border-radius: 50% !important;
  display: inline-block !important;
}

.swatch.kind-nonpolar { background: #EAB308 !important; box-shadow: 0 0 6px #EAB308 !important; }
.swatch.kind-polar { background: #38BDF8 !important; box-shadow: 0 0 6px #38BDF8 !important; }
.swatch.kind-acidic { background: #F43F5E !important; box-shadow: 0 0 6px #F43F5E !important; }
.swatch.kind-basic { background: #818CF8 !important; box-shadow: 0 0 6px #818CF8 !important; }
.swatch.kind-stop { background: #EF4444 !important; box-shadow: 0 0 6px #EF4444 !important; }
.swatch.kind-start { background: #10B981 !important; box-shadow: 0 0 6px #10B981 !important; }

/* Amino Acid Translation Chips */
.translate-out {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 8px !important;
  padding: 18px !important;
  background: var(--neu-surface-sunken) !important;
  border-radius: 12px !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--neu-sunken-shadow) !important;
  margin-top: 14px !important;
}

.aa-chip {
  background: var(--neu-surface) !important;
  border: 1px solid var(--glass-border-light) !important;
  border-radius: 8px !important;
  box-shadow: var(--neu-extruded-sm) !important;
  padding: 6px 12px !important;
  text-align: center !important;
  color: #FFF !important;
  font-family: var(--font-mono), monospace !important;
  transition: all 0.2s ease !important;
}

.aa-chip:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--neu-extruded-hover) !important;
}

.aa-chip b {
  display: block !important;
  color: var(--lab-gold) !important;
  font-size: 0.95rem !important;
  margin-bottom: 2px !important;
}

/* ==========================================================================
   15. WATU QUIZ HARMONIZATION (FROSTED GLASS & NEUMORPHIC DIAGNOSTICS)
   ========================================================================== */

.watu-question {
  background: var(--glass-panel-bg) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--glass-shadow) !important;
  padding: 24px 28px !important;
  margin-bottom: 24px !important;
  transition: all 0.3s ease !important;
}

.watu-question:hover {
  border-color: var(--glass-border-gold) !important;
  box-shadow: var(--glass-shadow-hover) !important;
}

.question-content {
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  color: #FFF !important;
  margin-bottom: 18px !important;
  line-height: 1.45 !important;
}

.watu_num {
  color: var(--lab-gold) !important;
  font-family: var(--font-mono), monospace !important;
  margin-right: 6px !important;
}

.watu-questions-wrap {
  display: flex !important;
  flex-direction: column !important;
  gap: 10px !important;
}

.watu-question-choice {
  background: var(--neu-surface) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 10px !important;
  box-shadow: var(--neu-extruded-sm) !important;
  padding: 12px 18px !important;
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
  cursor: pointer !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.watu-question-choice:hover {
  background: var(--neu-surface-hover) !important;
  border-color: var(--glass-border-cyan) !important;
  box-shadow: -2px -2px 6px rgba(255, 255, 255, 0.08), 
              4px 4px 12px rgba(0, 0, 0, 0.7), 
              0 0 12px var(--lab-cyan-glow) !important;
  transform: translateX(4px) !important;
}

.watu-question-choice label {
  color: #E2E8F0 !important;
  font-size: 0.98rem !important;
  cursor: pointer !important;
  width: 100% !important;
}

.watu-question-choice input[type="radio"],
.watu-question-choice input[type="checkbox"] {
  accent-color: var(--lab-gold) !important;
  width: 18px !important;
  height: 18px !important;
  cursor: pointer !important;
}

.watu-feedback {
  background: rgba(0, 229, 255, 0.08) !important;
  border-left: 4px solid var(--lab-cyan) !important;
  border-radius: 0 10px 10px 0 !important;
  padding: 14px 18px !important;
  margin-top: 14px !important;
  color: #E2E8F0 !important;
  font-size: 0.92rem !important;
  line-height: 1.55 !important;
}

.watu-submit-button,
input.watu-submit-button[type="button"],
input.watu-submit-button[type="submit"] {
  background: linear-gradient(145deg, #FFD533, #E6B800) !important;
  border: 1px solid rgba(255, 255, 255, 0.35) !important;
  border-radius: var(--radius-pill) !important;
  box-shadow: -3px -3px 8px rgba(255, 255, 255, 0.18), 
              5px 5px 14px rgba(0, 0, 0, 0.6), 
              0 0 16px rgba(255, 204, 0, 0.3) !important;
  color: #07090E !important;
  font-weight: 800 !important;
  font-size: 1rem !important;
  padding: 14px 32px !important;
  cursor: pointer !important;
  margin-top: 24px !important;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.watu-submit-button:hover,
input.watu-submit-button[type="button"]:hover,
input.watu-submit-button[type="submit"]:hover {
  background: linear-gradient(145deg, #FFE066, #FFCC00) !important;
  box-shadow: -4px -4px 12px rgba(255, 255, 255, 0.25), 
              6px 6px 20px rgba(0, 0, 0, 0.7), 
              0 0 24px rgba(255, 204, 0, 0.5) !important;
  transform: translateY(-2px) !important;
}

/* ==========================================================================
   16. NATGEO DYNAMIC VISUALIZATION SHORTCODES (INTERACTIVE LAB CHAMBER)
   ========================================================================== */

.natgeo-viz-container {
  background: rgba(11, 15, 25, 0.78) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border-light) !important;
  border-radius: var(--radius-card) !important;
  box-shadow: var(--glass-shadow), 0 0 40px rgba(0, 229, 255, 0.08) !important;
  overflow: hidden !important;
  margin: 36px 0 !important;
}

.natgeo-viz-header {
  background: rgba(16, 22, 36, 0.85) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  padding: 20px 28px !important;
  border-bottom: 1px solid var(--glass-border) !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  flex-wrap: wrap !important;
  gap: 14px !important;
}

.natgeo-viz-kicker {
  color: var(--lab-cyan) !important;
  font-size: 0.76rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.14em !important;
  text-transform: uppercase !important;
  display: block !important;
  margin-bottom: 4px !important;
}

.natgeo-viz-title {
  color: #FFF !important;
  font-family: var(--font-serif), Georgia, serif !important;
  font-size: 1.45rem !important;
  font-weight: 700 !important;
  margin: 0 !important;
}

.natgeo-viz-badge {
  background: rgba(0, 229, 255, 0.12) !important;
  border: 1px solid var(--glass-border-cyan) !important;
  border-radius: var(--radius-pill) !important;
  color: var(--lab-cyan) !important;
  font-family: var(--font-mono), monospace !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  padding: 5px 14px !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  box-shadow: 0 0 14px var(--lab-cyan-glow) !important;
}

.pulse-dot {
  width: 7px !important;
  height: 7px !important;
  border-radius: 50% !important;
  background: var(--lab-cyan) !important;
  box-shadow: 0 0 8px var(--lab-cyan) !important;
  animation: labPulse 1.8s infinite !important;
}

@keyframes labPulse {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.deep-time-nav {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 8px !important;
  padding: 14px 24px !important;
  background: rgba(8, 11, 18, 0.9) !important;
  border-bottom: 1px solid var(--glass-border) !important;
}

.ocean-strat-wrap {
  display: grid !important;
  grid-template-columns: 80px 1.4fr 260px !important;
  background: #06090F !important;
}

@media (max-width: 900px) {
  .ocean-strat-wrap {
    grid-template-columns: 1fr !important;
  }
}

/* ==========================================================================
   17. BREADCRUMBS & SECTION HEADERS
   ========================================================================== */

.crumbs {
  margin-bottom: 24px !important;
}

.crumbs ol {
  display: flex !important;
  flex-wrap: wrap !important;
  align-items: center !important;
  gap: 6px 10px !important;
  list-style: none !important;
  padding: 8px 18px !important;
  margin: 0 !important;
  background: rgba(14, 18, 28, 0.6) !important;
  backdrop-filter: var(--glass-blur-sm) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-pill) !important;
  font-size: 0.82rem !important;
  width: fit-content !important;
}

.crumbs li {
  display: inline-flex !important;
  align-items: center !important;
  color: #94A3B8 !important;
}

.crumbs li + li::before {
  content: "›" !important;
  margin-right: 10px !important;
  color: var(--lab-gold) !important;
  font-weight: 800 !important;
}

.crumbs a {
  color: #CBD5E1 !important;
  text-decoration: none !important;
  transition: color 0.2s ease !important;
}

.crumbs a:hover {
  color: var(--lab-gold) !important;
  text-shadow: 0 0 10px var(--lab-gold-glow) !important;
}

.section-label {
  margin-bottom: 20px !important;
}

.section-label .kicker {
  color: var(--lab-gold) !important;
  font-size: 0.76rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.16em !important;
  text-transform: uppercase !important;
  display: block !important;
  margin-bottom: 4px !important;
}

.section-label h2 {
  font-family: var(--font-serif), Georgia, serif !important;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem) !important;
  font-weight: 800 !important;
  color: #FFF !important;
  margin: 0 !important;
}

.cover-actions {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 14px !important;
  margin-top: 24px !important;
}