@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700;800&display=swap');

/* ==========================================================================
   TECHNICAL REALISM × TACTICAL MICRO-GRAPHICS DESIGN SYSTEM (UKRAINIAN EDITION)
   ========================================================================== */

:root {
  /* Color Palette */
  --color-void-black: #08090A;
  --color-carbon-dark: #121417;
  --color-carbon-surface: #181B20;
  --color-carbon-hover: #22262D;
  --color-carbon-border: #262B33;
  --color-carbon-border-active: #3C4450;
  
  --color-acid-lime: #A3FF12;
  --color-acid-lime-glow: rgba(163, 255, 18, 0.2);
  --color-acid-lime-dim: rgba(163, 255, 18, 0.08);
  
  --color-hyper-cyan: #00E5FF;
  --color-hyper-cyan-glow: rgba(0, 229, 255, 0.2);
  --color-hyper-cyan-dim: rgba(0, 229, 255, 0.08);
  
  --color-hazard-amber: #FFB800;
  --color-hazard-amber-glow: rgba(255, 184, 0, 0.2);
  
  --color-signal-red: #FF3B30;
  --color-signal-red-dim: rgba(255, 59, 48, 0.1);
  
  --color-oversight-white: #F4F6F8;
  --color-muted-grey: #8A95A5;
  --color-dim-grey: #4A5462;

  /* Typography */
  --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;

  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;

  --header-height: 56px;

  /* Shadows */
  --shadow-tactical: 0 4px 20px rgba(0, 0, 0, 0.6);
  --shadow-lime-glow: 0 0 24px var(--color-acid-lime-glow);
  --shadow-cyan-glow: 0 0 24px var(--color-hyper-cyan-glow);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--color-void-black);
}

body {
  font-family: var(--font-display);
  background-color: var(--color-void-black);
  color: var(--color-oversight-white);
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(var(--color-carbon-border) 1px, transparent 1px),
    linear-gradient(to right, rgba(255,255,255,0.012) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.012) 1px, transparent 1px);
  background-size: 32px 32px, 128px 128px, 128px 128px;
  background-position: 0 0, 0 0, 0 0;
}

/* Tactical Scanlines */
body::before {
  content: " ";
  display: block;
  position: fixed;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
  background-size: 100% 4px;
  z-index: 999;
  pointer-events: none;
  opacity: 0.25;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-void-black);
}
::-webkit-scrollbar-thumb {
  background: var(--color-carbon-border);
  border-radius: var(--radius-xs);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-acid-lime);
}

/* Technical Boxes & Corner Marks */
.tech-box {
  position: relative;
  background: var(--color-carbon-dark);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.tech-box::before, .tech-box::after {
  content: '+';
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-dim-grey);
  line-height: 1;
  pointer-events: none;
}

.tech-box::before { top: -5px; left: -3px; }
.tech-box::after { bottom: -5px; right: -3px; }

.tech-id {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-dim-grey);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: rgba(8, 9, 10, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-carbon-border);
  z-index: 900;
}

.header-container {
  max-width: 1440px;
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-oversight-white);
}

.brand-badge {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  letter-spacing: 0.06em;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.brand-title span {
  color: var(--color-acid-lime);
}

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

.nav-link {
  color: var(--color-muted-grey);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  transition: all 0.15s;
  border: 1px solid transparent;
  text-transform: uppercase;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-oversight-white);
  background: var(--color-carbon-surface);
  border-color: var(--color-carbon-border);
}

.nav-link.accent {
  color: var(--color-acid-lime);
  border-color: rgba(163, 255, 18, 0.3);
  background: var(--color-acid-lime-dim);
}

.nav-link.accent:hover {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
}

/* Floating Audio Narrator Dock */
.narrator-dock {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 20, 23, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid var(--color-carbon-border);
  box-shadow: var(--shadow-tactical), 0 0 30px rgba(0,0,0,0.8);
  padding: 6px 14px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1000;
  transition: border-color 0.2s;
  max-width: 95vw;
}

.narrator-dock:hover {
  border-color: var(--color-acid-lime);
}

.narrator-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.narrator-avatar {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-xs);
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-acid-lime);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--color-acid-lime);
}

.narrator-avatar.speaking {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
}

.narrator-text {
  display: flex;
  flex-direction: column;
}

.narrator-title {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--color-acid-lime);
  text-transform: uppercase;
}

.narrator-status {
  font-size: 11px;
  color: var(--color-muted-grey);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.narrator-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-icon {
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-carbon-border);
  color: var(--color-oversight-white);
  width: 26px;
  height: 26px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 10px;
  transition: all 0.15s;
}

.btn-icon:hover {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
}

.btn-icon.active {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
}

.rate-selector {
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-carbon-border);
  color: var(--color-oversight-white);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-size: 10px;
  font-family: var(--font-mono);
  cursor: pointer;
  outline: none;
}

/* ==========================================================================
   SCREEN-FITTED SECTION MODULES
   ========================================================================== */

.main-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 20px 100px;
}

.screen-module {
  min-height: calc(100vh - var(--header-height) - 30px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  scroll-margin-top: calc(var(--header-height) + 12px);
  padding: 24px 0 20px;
  border-top: 1px solid var(--color-carbon-border);
}

.screen-module:first-of-type {
  border-top: none;
}

.hero-section {
  padding: 16px 0 24px;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-carbon-border);
  padding-bottom: 6px;
  margin-bottom: 12px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.hero-title .highlight {
  color: var(--color-acid-lime);
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--color-muted-grey);
  max-width: 860px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

/* Interactive Mechanism Selector Bar */
.hero-mech-selector-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.hero-mech-pill {
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-carbon-border);
  color: var(--color-muted-grey);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
}

.hero-mech-pill:hover, .hero-mech-pill.active {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
  border-color: var(--color-acid-lime);
  box-shadow: 0 0 12px var(--color-acid-lime-glow);
}

/* Tactical Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
}

.btn-primary:hover {
  background: #b9ff3d;
}

.btn-secondary {
  background: var(--color-carbon-surface);
  color: var(--color-oversight-white);
  border-color: var(--color-carbon-border);
}

.btn-secondary:hover {
  border-color: var(--color-acid-lime);
  color: var(--color-acid-lime);
}

/* 3D Masterpiece Banner with Target Reticle */
.encyclopedia-hero-banner {
  width: 100%;
  max-width: 780px;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-xs);
  overflow: hidden;
  border: 1px solid var(--color-carbon-border);
  margin: 6px auto 14px;
  position: relative;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.encyclopedia-hero-banner img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #08090A;
  display: block;
}

/* Target Reticle Overlay */
.hero-reticle-box {
  position: absolute;
  transform: translate(-50%, -50%);
  border: 1.5px solid rgba(163, 255, 18, 0.4);
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 16px var(--color-acid-lime-glow), inset 0 0 12px rgba(163, 255, 18, 0.08);
  z-index: 10;
  border-radius: var(--radius-xs);
}

.reticle-corner {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--color-acid-lime);
  border-style: solid;
}

.reticle-corner.tl { top: -2px; left: -2px; border-width: 2px 0 0 2px; }
.reticle-corner.tr { top: -2px; right: -2px; border-width: 2px 2px 0 0; }
.reticle-corner.bl { bottom: -2px; left: -2px; border-width: 0 0 2px 2px; }
.reticle-corner.br { bottom: -2px; right: -2px; border-width: 0 2px 2px 0; }

.encyclopedia-badge-overlay {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(8, 9, 10, 0.9);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-acid-lime);
  color: var(--color-acid-lime);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  z-index: 5;
}

/* Module Header */
.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.module-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--color-oversight-white);
  display: flex;
  align-items: center;
  gap: 8px;
}

.voice-badge {
  background: var(--color-carbon-surface);
  color: var(--color-acid-lime);
  border: 1px solid rgba(163, 255, 18, 0.4);
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: all 0.15s;
}

.voice-badge:hover {
  background: var(--color-acid-lime);
  color: var(--color-void-black);
}

/* Golden Rule Box */
.golden-rule-banner {
  background: var(--color-carbon-dark);
  border: 1px solid var(--color-hazard-amber);
  border-radius: var(--radius-xs);
  padding: 12px 16px;
  margin: 10px 0;
}

.rule-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-hazard-amber);
}

.rule-body {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-oversight-white);
  margin-top: 4px;
}

/* Dual Visual Hub (Strict 16:9 Equal Proportions) */
.dual-visual-hub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 8px 0;
}

@media (max-width: 960px) {
  .dual-visual-hub {
    grid-template-columns: 1fr;
  }
}

.encyclopedia-art-card {
  position: relative;
  border-radius: var(--radius-xs);
  overflow: hidden;
  border: 1px solid var(--color-carbon-border);
  background: #000;
  aspect-ratio: 16 / 9;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.encyclopedia-art-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #08090A;
  display: block;
  cursor: zoom-in;
  transition: transform 0.2s;
}

.encyclopedia-art-card:hover img {
  transform: scale(1.02);
}

.art-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(0deg, rgba(8, 9, 10, 0.92) 0%, transparent 100%);
  padding: 12px 10px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-muted-grey);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.canvas-container {
  position: relative;
  background: #050608;
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  aspect-ratio: 16 / 9;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

canvas.sim-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

canvas.sim-canvas:active {
  cursor: grabbing;
}

.canvas-overlay-hints {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(8, 9, 10, 0.85);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--color-muted-grey);
  border: 1px solid var(--color-carbon-border);
  pointer-events: none;
  z-index: 5;
}

/* Simulator Controls Strip */
.sim-controls-strip {
  background: var(--color-carbon-dark);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--color-oversight-white);
  text-transform: uppercase;
}

.control-value {
  font-family: var(--font-mono);
  color: var(--color-acid-lime);
  font-weight: 700;
}

.slider-input {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--color-carbon-border);
  outline: none;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-xs);
  background: var(--color-acid-lime);
  cursor: pointer;
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.hud-metrics {
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  padding: 8px 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
}

.metric-box {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--color-muted-grey);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-val {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-hyper-cyan);
}

.metric-val.gain {
  color: var(--color-acid-lime);
}

/* Reading Blocks */
.reading-block {
  background: var(--color-carbon-dark);
  border-left: 3px solid var(--color-acid-lime);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  padding: 10px 14px;
  margin-top: 8px;
  transition: all 0.2s;
}

.reading-block.narrating {
  background: var(--color-carbon-surface);
  border-left-color: var(--color-hyper-cyan);
}

.reading-block p {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--color-oversight-white);
}

/* Composite Grid */
.composite-explorer {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.comp-card {
  background: var(--color-carbon-dark);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.comp-title {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-oversight-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.comp-desc {
  font-size: 0.8rem;
  color: var(--color-muted-grey);
  line-height: 1.4;
}

.comp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: auto;
}

.comp-sub-tag {
  background: var(--color-carbon-surface);
  color: var(--color-hyper-cyan);
  border: 1px solid var(--color-carbon-border);
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 5px;
  border-radius: var(--radius-xs);
  font-weight: 600;
  text-transform: uppercase;
}

/* Experiment Module */
.exp-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 8px;
}

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

.exp-inventory {
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  padding: 12px;
}

.exp-items-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin: 6px 0 12px;
}

.exp-item {
  font-size: 0.82rem;
  color: var(--color-muted-grey);
  font-family: var(--font-mono);
}

.exp-interactive-canvas {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #050608;
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
}

/* Quiz Module */
.quiz-section {
  background: var(--color-carbon-dark);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  padding: 20px;
  margin-top: 8px;
}

.quiz-progress-bar {
  width: 100%;
  height: 4px;
  background: var(--color-carbon-surface);
  border-radius: 2px;
  margin-bottom: 14px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-acid-lime);
  transition: width 0.3s ease;
}

.quiz-q-num {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--color-acid-lime);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.quiz-q-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-oversight-white);
  margin-bottom: 14px;
}

.quiz-options-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.quiz-option {
  background: var(--color-carbon-surface);
  border: 1px solid var(--color-carbon-border);
  padding: 8px 12px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  transition: all 0.15s;
}

.quiz-option:hover {
  border-color: var(--color-carbon-border-active);
  background: var(--color-carbon-hover);
}

.quiz-option.selected {
  border-color: var(--color-acid-lime);
}

.quiz-option.correct {
  border-color: var(--color-acid-lime);
  background: var(--color-acid-lime-dim);
  color: var(--color-acid-lime);
}

.quiz-option.wrong {
  border-color: var(--color-signal-red);
  background: var(--color-signal-red-dim);
  color: var(--color-signal-red);
}

.quiz-bracket {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-muted-grey);
}

.quiz-feedback {
  padding: 8px 12px;
  border-radius: var(--radius-xs);
  margin-bottom: 12px;
  font-size: 0.84rem;
  display: none;
  font-family: var(--font-mono);
}

.quiz-feedback.show {
  display: block;
}

.quiz-feedback.correct {
  background: var(--color-acid-lime-dim);
  border: 1px solid var(--color-acid-lime);
  color: var(--color-acid-lime);
}

.quiz-feedback.wrong {
  background: var(--color-signal-red-dim);
  border: 1px solid var(--color-signal-red);
  color: var(--color-signal-red);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 6, 0.92);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background: var(--color-carbon-dark);
  border: 1px solid var(--color-carbon-border);
  border-radius: var(--radius-xs);
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-carbon-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 12px;
  overflow-y: auto;
  text-align: center;
}

.modal-body img {
  max-width: 100%;
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-tactical);
}

/* Footer */
.site-footer {
  background: var(--color-void-black);
  border-top: 1px solid var(--color-carbon-border);
  padding: 24px 20px 80px;
  text-align: center;
  color: var(--color-dim-grey);
  font-family: var(--font-mono);
  font-size: 10px;
}