:root {
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --text-primary: #e0e0e0;
  --text-secondary: #808080;
  --green: #00ff00;
  --cyan: #00ffff;
  --magenta: #ff00ff;
  --yellow: #ffff00;
  --red: #ff3333;
  --orange: #ff8800;
}

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

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  background-image: 
    radial-gradient(ellipse at top, #1a1a2e 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, #0d0d1a 0%, transparent 50%);
}

.app {
  min-height: 100vh;
}

/* Navigation */
.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.95);
  border-bottom: 2px solid var(--green);
  backdrop-filter: blur(10px);
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: transform 0.2s;
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-icon {
  width: 40px;
  height: 40px;
  image-rendering: pixelated;
}

.nav-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.9rem;
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-link {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.6rem;
  padding: 0.75rem 1rem;
  background: transparent;
  border: 2px solid var(--text-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.nav-link:hover, .nav-link.active {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.nav-link.external {
  border-color: var(--magenta);
}

.nav-link.external:hover {
  color: var(--magenta);
  border-color: var(--magenta);
  box-shadow: 0 0 15px rgba(255, 0, 255, 0.3);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
  background: 
    linear-gradient(135deg, rgba(0, 255, 0, 0.03) 0%, transparent 50%),
    linear-gradient(225deg, rgba(255, 0, 255, 0.03) 0%, transparent 50%);
}

.scanlines {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.1) 0px,
    rgba(0, 0, 0, 0.1) 1px,
    transparent 1px,
    transparent 3px
  );
  z-index: 10;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  text-align: center;
  max-width: 800px;
}

.hero-console {
  position: relative;
}

.console-image {
  width: 200px;
  height: 200px;
  image-rendering: pixelated;
  filter: drop-shadow(0 0 30px rgba(0, 255, 0, 0.4));
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.pixel-sparkles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.sparkle {
  position: absolute;
  width: 16px;
  height: 16px;
  image-rendering: pixelated;
  animation: sparkle 2s ease-in-out infinite;
}

.sparkle-0 { top: -10%; left: 10%; color: var(--cyan); animation-delay: 0s; }
.sparkle-1 { top: 20%; right: -5%; color: var(--magenta); animation-delay: 0.4s; }
.sparkle-2 { bottom: 10%; left: -5%; color: var(--yellow); animation-delay: 0.8s; }
.sparkle-3 { bottom: -5%; right: 15%; color: var(--green); animation-delay: 1.2s; }
.sparkle-4 { top: 50%; left: -10%; color: var(--cyan); animation-delay: 1.6s; }

@keyframes sparkle {
  0%, 100% { opacity: 0; transform: scale(0.5); }
  50% { opacity: 1; transform: scale(1); }
}

.hero-title {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(2rem, 8vw, 4rem);
  color: var(--green);
  text-shadow: 
    0 0 20px var(--green),
    0 0 40px var(--green),
    4px 4px 0 var(--bg-dark);
  letter-spacing: 0.1em;
}

.hero-subtitle {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(0.5rem, 2vw, 0.75rem);
  color: var(--cyan);
  margin-top: 1rem;
}

.hero-tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.boot-text {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.7rem;
  color: var(--yellow);
  margin-top: 2rem;
  padding: 1rem 2rem;
  border: 2px solid var(--yellow);
  background: rgba(255, 255, 0, 0.05);
}

/* Intro Section */
.intro-section {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(0, 255, 0, 0.02) 0%, transparent 100%);
}

.intro-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.intro-main {
  background: var(--bg-card);
  border: 3px solid var(--green);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.intro-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--green), var(--cyan), var(--magenta), var(--green));
  background-size: 200% 100%;
  animation: gradient-slide 3s linear infinite;
}

@keyframes gradient-slide {
  0% { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

.intro-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.intro-label {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.9rem;
  color: var(--green);
  text-shadow: 0 0 15px var(--green);
  letter-spacing: 0.1em;
}

.intro-icon-row {
  display: flex;
  gap: 0.75rem;
}

.intro-icon {
  width: 32px;
  height: 32px;
  image-rendering: pixelated;
  filter: drop-shadow(0 0 8px rgba(0, 255, 255, 0.5));
}

.intro-description {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary);
  margin-bottom: 2rem;
}

.highlight-green {
  color: var(--green);
  font-weight: bold;
}

.highlight-cyan {
  color: var(--cyan);
  font-style: italic;
}

.highlight-magenta {
  color: var(--magenta);
  font-weight: bold;
}

.intro-specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 2px dashed var(--green);
}

.intro-spec {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.75rem;
  background: rgba(0, 255, 0, 0.05);
  border: 1px solid rgba(0, 255, 0, 0.2);
}

.spec-num {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.7rem;
  color: var(--cyan);
  margin-bottom: 0.25rem;
}

.spec-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.intro-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.feature-highlight {
  background: var(--bg-card);
  border: 2px solid var(--text-secondary);
  padding: 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  transition: all 0.3s;
}

.feature-highlight:hover {
  border-color: var(--cyan);
  transform: translateX(5px);
  box-shadow: -4px 0 0 var(--cyan);
}

.feature-icon-wrapper {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 255, 255, 0.1);
  border: 1px solid var(--cyan);
  flex-shrink: 0;
}

.feature-icon-wrapper img {
  width: 24px;
  height: 24px;
  image-rendering: pixelated;
}

.feature-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.feature-name {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--green);
}

.feature-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.nes-constraints {
  background: linear-gradient(135deg, rgba(255, 0, 255, 0.05) 0%, rgba(0, 255, 255, 0.05) 100%);
  border: 2px solid var(--magenta);
  padding: 1.5rem;
}

.constraint-header {
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed var(--magenta);
}

.constraint-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.6rem;
  color: var(--magenta);
  text-shadow: 0 0 10px var(--magenta);
}

.constraint-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.constraint-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.constraint-icon {
  font-size: 1.2rem;
}

.constraint-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-primary);
}

/* Quick Links */
.quick-links {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(0.8rem, 3vw, 1.2rem);
  color: var(--magenta);
  text-align: center;
  margin-bottom: 3rem;
  text-shadow: 0 0 20px var(--magenta);
}

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

.link-card {
  background: var(--bg-card);
  border: 3px solid var(--text-secondary);
  padding: 2rem;
  text-decoration: none;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.link-card:hover {
  border-color: var(--cyan);
  transform: translateY(-5px);
  box-shadow: 
    0 10px 40px rgba(0, 255, 255, 0.2),
    inset 0 0 20px rgba(0, 255, 255, 0.05);
}

.link-icon {
  width: 48px;
  height: 48px;
  image-rendering: pixelated;
}

.link-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.8rem;
  color: var(--green);
}

.link-desc {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Specifications */
.specifications {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.spec-card {
  background: var(--bg-card);
  border: 3px solid;
  padding: 1.5rem;
}

.spec-cyan { border-color: var(--cyan); }
.spec-magenta { border-color: var(--magenta); }
.spec-yellow { border-color: var(--yellow); }

.spec-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.7rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px dashed currentColor;
}

.spec-cyan .spec-title { color: var(--cyan); }
.spec-magenta .spec-title { color: var(--magenta); }
.spec-yellow .spec-title { color: var(--yellow); }

.spec-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
}

.spec-label {
  color: var(--text-secondary);
}

.spec-value {
  color: var(--text-primary);
}

/* Sound System Demo */
.sound-demo {
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.sound-container {
  background: var(--bg-card);
  border: 3px solid var(--orange);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sound-controls {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.control-label {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--orange);
}

.waveform-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.waveform-btn {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.45rem;
  padding: 0.5rem 0.75rem;
  background: transparent;
  border: 2px solid var(--text-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.waveform-btn:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.waveform-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--bg-dark);
}

.volume-slider {
  width: 150px;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--text-secondary);
  border-radius: 0;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--orange);
  border: none;
  cursor: pointer;
}

.volume-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--orange);
  border: none;
  cursor: pointer;
}

.piano-keyboard {
  display: flex;
  justify-content: center;
  gap: 4px;
  flex-wrap: wrap;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid var(--text-secondary);
}

.piano-key {
  width: 50px;
  height: 80px;
  background: linear-gradient(180deg, #2a2a3a 0%, #1a1a2a 100%);
  border: 2px solid var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 8px;
  gap: 4px;
  cursor: pointer;
  transition: all 0.1s;
  position: relative;
  overflow: hidden;
}

.piano-key::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(255, 136, 0, 0.3) 100%);
  opacity: 0;
  transition: opacity 0.1s;
}

.piano-key:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.piano-key:hover::before {
  opacity: 0.5;
}

.piano-key.active {
  background: linear-gradient(180deg, var(--orange) 0%, #cc6600 100%);
  border-color: var(--yellow);
  transform: translateY(2px);
  box-shadow: 0 0 20px rgba(255, 136, 0, 0.6);
}

.piano-key.active::before {
  opacity: 1;
}

.key-note {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--text-primary);
  z-index: 1;
}

.piano-key.active .key-note {
  color: var(--bg-dark);
}

.key-bind {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--text-secondary);
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.piano-key.active .key-bind {
  color: var(--bg-dark);
  background: rgba(255, 255, 255, 0.3);
}

.sound-info {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.info-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.key-highlight {
  color: var(--cyan);
  background: rgba(0, 255, 255, 0.1);
  padding: 0.2rem 0.5rem;
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
}

.waveform-info {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.info-label {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.45rem;
  color: var(--text-secondary);
}

.info-item {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid;
}

.info-item.pulse {
  color: var(--cyan);
  border-color: var(--cyan);
}

.info-item.triangle {
  color: var(--magenta);
  border-color: var(--magenta);
}

.info-item.noise {
  color: var(--yellow);
  border-color: var(--yellow);
}

.sound-code {
  background: #0a0a0f;
  border: 1px solid var(--orange);
  padding: 1rem;
}

.code-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--orange);
  margin-bottom: 1rem;
}

.code-snippet {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--green);
  line-height: 1.5;
  overflow-x: auto;
}

@media (max-width: 600px) {
  .piano-key {
    width: 40px;
    height: 65px;
  }
  
  .key-note {
    font-size: 0.4rem;
  }
  
  .key-bind {
    font-size: 0.5rem;
  }
  
  .waveform-btn {
    font-size: 0.4rem;
    padding: 0.4rem 0.6rem;
  }
  
  .sound-controls {
    gap: 1rem;
  }
}

/* Sprite System Explainer */
.sprite-system {
  padding: 4rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.system-container {
  background: var(--bg-card);
  border: 3px solid var(--green);
  overflow: hidden;
}

.system-tabs {
  display: flex;
  border-bottom: 2px solid var(--green);
  background: rgba(0, 255, 0, 0.05);
}

.system-tab {
  flex: 1;
  font-family: 'Press Start 2P', cursive;
  font-size: 0.55rem;
  padding: 1rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  border-right: 1px solid var(--green);
}

.system-tab:last-child {
  border-right: none;
}

.system-tab:hover {
  color: var(--green);
  background: rgba(0, 255, 0, 0.1);
}

.system-tab.active {
  color: var(--green);
  background: rgba(0, 255, 0, 0.15);
  text-shadow: 0 0 10px var(--green);
}

.system-content {
  padding: 2rem;
}

/* Sprite Demo */
.sprite-demo, .tile-demo, .canvas-demo {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .sprite-demo {
    grid-template-columns: 1fr 1fr;
  }
  
  .sprite-demo .code-definition {
    grid-column: 1 / -1;
  }
}

.demo-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.demo-subtitle {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--cyan);
  letter-spacing: 0.05em;
}

.sprite-grid-container {
  position: relative;
}

.sprite-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  background: #1a1a2e;
  padding: 8px;
  border: 2px solid var(--cyan);
  width: fit-content;
}

.sprite-pixel {
  width: 24px;
  height: 24px;
  cursor: crosshair;
  transition: transform 0.1s;
}

.sprite-pixel.hovered {
  transform: scale(1.2);
  z-index: 10;
  box-shadow: 0 0 10px var(--cyan);
}

.grid-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.pixel-info {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--yellow);
  padding: 0.5rem;
  background: rgba(255, 255, 0, 0.1);
  border: 1px solid var(--yellow);
}

.palette-display {
  display: flex;
  gap: 0.75rem;
}

.palette-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.palette-color {
  width: 32px;
  height: 32px;
  border: 2px solid var(--text-secondary);
}

.palette-label {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--text-secondary);
}

.sprite-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--green);
  background: #0a0a0f;
  padding: 1rem;
  border: 1px solid var(--green);
  overflow-x: auto;
  line-height: 1.5;
}

/* Tile Demo */
.tile-grid-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2px;
  background: #1a1a2e;
  padding: 8px;
  border: 2px solid var(--magenta);
  width: fit-content;
}

.tile-cell {
  width: 40px;
  height: 40px;
  background: #0d0d1a;
  border: 1px dashed #333;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.tile-cell.has-tile {
  background: rgba(255, 0, 255, 0.1);
  border: 1px solid var(--magenta);
}

.tile-coord {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  color: var(--text-secondary);
  position: absolute;
  bottom: 2px;
}

.mini-sprite {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mini-heart {
  width: 12px;
  height: 12px;
  background: var(--red);
  clip-path: polygon(50% 100%, 0% 35%, 25% 0%, 50% 20%, 75% 0%, 100% 35%);
}

.grid-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.comparison-box {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.compare-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0.5rem 1rem;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border-left: 3px solid;
}

.compare-item:first-child {
  border-color: var(--magenta);
}

.compare-item:last-child {
  border-color: var(--cyan);
}

.compare-label {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  grid-row: span 2;
  display: flex;
  align-items: center;
}

.tile-label { color: var(--magenta); }
.sprite-label { color: var(--cyan); }

.compare-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-primary);
}

.compare-use {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

/* Canvas Demo */
.canvas-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.canvas-frame {
  width: 200px;
  height: 200px;
  border: 3px solid var(--yellow);
  background: #050508;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(255, 255, 0, 0.2);
}

.canvas-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 300px;
  height: 200px;
  transition: transform 0.1s linear;
}

.layer-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  gap: 4px;
  padding: 10px;
  flex-wrap: wrap;
}

.bg-tile {
  width: 40px;
  height: 40px;
  background: #1a1a2e;
  opacity: 0.5;
}

.layer-tiles {
  position: absolute;
  top: 0;
  left: 0;
}

.demo-tile {
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--magenta);
  opacity: 0.7;
}

.layer-sprites {
  position: absolute;
  top: 0;
  left: 0;
}

.demo-player {
  position: absolute;
  width: 24px;
  height: 24px;
  background: var(--cyan);
  animation: bob 0.5s ease-in-out infinite alternate;
}

@keyframes bob {
  from { transform: translateY(0); }
  to { transform: translateY(-4px); }
}

.scroll-indicator {
  position: absolute;
  bottom: 4px;
  right: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--yellow);
  background: rgba(0, 0, 0, 0.8);
  padding: 2px 6px;
}

.canvas-dimensions {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.dim-arrow {
  color: var(--yellow);
}

.render-stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stack-layer {
  display: grid;
  grid-template-columns: 30px 80px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem 1rem;
  border-left: 4px solid;
}

.sprites-layer {
  background: rgba(0, 255, 255, 0.1);
  border-color: var(--cyan);
}

.tiles-layer {
  background: rgba(255, 0, 255, 0.1);
  border-color: var(--magenta);
}

.bg-layer {
  background: rgba(255, 255, 0, 0.1);
  border-color: var(--yellow);
}

.layer-num {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.layer-name {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--text-primary);
}

.layer-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

@media (max-width: 480px) {
  .sprite-pixel {
    width: 18px;
    height: 18px;
  }
  
  .tile-cell {
    width: 30px;
    height: 30px;
  }
  
  .system-tab {
    font-size: 0.45rem;
    padding: 0.75rem 0.5rem;
  }
  
  .stack-layer {
    grid-template-columns: 25px 60px 1fr;
    gap: 0.5rem;
    padding: 0.5rem;
  }
}

/* Architecture */
.architecture {
  padding: 4rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.arch-container {
  background: var(--bg-card);
  border: 3px solid var(--green);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.mermaid-diagram {
  width: 100%;
  overflow-x: auto;
  padding: 1rem;
  background: #050508;
  border: 2px solid var(--green);
  border-radius: 4px;
}

.mermaid-diagram svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.arch-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  background: #050508;
  border: 2px solid var(--green);
}

.loading-text {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.6rem;
  color: var(--green);
  animation: blink 1s infinite;
}

.arch-legend {
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid var(--cyan);
  padding: 1.5rem;
}

.legend-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.55rem;
  color: var(--cyan);
  margin-bottom: 1.5rem;
  text-align: center;
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.legend-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.75rem;
  background: rgba(0, 255, 255, 0.05);
  border-left: 3px solid var(--cyan);
}

.legend-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  image-rendering: pixelated;
}

.legend-icon.quickjs { filter: drop-shadow(0 0 5px var(--yellow)); }
.legend-icon.ai { filter: drop-shadow(0 0 5px var(--magenta)); }
.legend-icon.canvas { filter: drop-shadow(0 0 5px var(--green)); }
.legend-icon.storage { filter: drop-shadow(0 0 5px var(--cyan)); }

.legend-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.legend-name {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--text-primary);
}

.legend-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Legacy CRT frame for other uses */
.crt-frame {
  background: #050508;
  border: 4px solid var(--green);
  border-radius: 8px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  box-shadow: 
    0 0 30px rgba(0, 255, 0, 0.2),
    inset 0 0 50px rgba(0, 255, 0, 0.05);
}

.crt-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15) 0px,
    rgba(0, 0, 0, 0.15) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
}

.architecture-diagram {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.4rem, 1.5vw, 0.7rem);
  color: var(--green);
  overflow-x: auto;
  line-height: 1.4;
}

/* Code Examples */
.code-examples {
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.code-container {
  background: var(--bg-card);
  border: 3px solid var(--cyan);
}

.code-tabs {
  display: flex;
  border-bottom: 2px solid var(--cyan);
  overflow-x: auto;
}

.code-tab {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.55rem;
  padding: 1rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.code-tab:hover {
  color: var(--cyan);
  background: rgba(0, 255, 255, 0.1);
}

.code-tab.active {
  color: var(--cyan);
  background: rgba(0, 255, 255, 0.15);
  border-bottom: 2px solid var(--cyan);
  margin-bottom: -2px;
}

.code-block {
  position: relative;
  padding: 1.5rem;
  overflow-x: auto;
}

.copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  border: 2px solid var(--magenta);
  color: var(--magenta);
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--magenta);
  color: var(--bg-dark);
}

.code-block pre {
  margin: 0;
}

.code-block code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--green);
  line-height: 1.6;
}

/* Core Features */
.core-features {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 3px solid var(--text-secondary);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--green);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 255, 0, 0.15);
}

.feature-icon {
  width: 48px;
  height: 48px;
  image-rendering: pixelated;
}

.feature-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.6rem;
  color: var(--green);
}

.feature-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.feature-detail {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
  padding-top: 0.5rem;
  border-top: 1px dashed var(--text-secondary);
}

/* How It Works */
.how-it-works {
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.workflow-container {
  background: var(--bg-card);
  border: 3px solid var(--magenta);
  padding: 2rem;
}

.workflow-steps {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.workflow-step {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-left: 4px solid;
  position: relative;
}

.workflow-step.step-cyan { border-color: var(--cyan); }
.workflow-step.step-magenta { border-color: var(--magenta); }
.workflow-step.step-yellow { border-color: var(--yellow); }
.workflow-step.step-green { border-color: var(--green); }
.workflow-step.step-orange { border-color: var(--orange); }
.workflow-step.step-red { border-color: var(--red); }

.step-number {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.8rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-dark);
  border: 2px solid currentColor;
  flex-shrink: 0;
}

.step-cyan .step-number { color: var(--cyan); }
.step-magenta .step-number { color: var(--magenta); }
.step-yellow .step-number { color: var(--yellow); }
.step-green .step-number { color: var(--green); }
.step-orange .step-number { color: var(--orange); }
.step-red .step-number { color: var(--red); }

.step-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.step-label {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.55rem;
  color: var(--text-primary);
}

.step-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.step-arrow {
  position: absolute;
  right: 1rem;
  font-size: 1.2rem;
  color: var(--text-secondary);
  opacity: 0.5;
}

.workflow-tagline {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  text-align: center;
  color: var(--cyan);
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 2px dashed var(--magenta);
}

/* Quick Start */
.quick-start {
  padding: 4rem 2rem;
  max-width: 700px;
  margin: 0 auto;
}

.quickstart-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.terminal-window {
  background: #1e1e2e;
  border: 3px solid var(--green);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 255, 0, 0.1);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #2a2a3e;
  border-bottom: 1px solid var(--text-secondary);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: auto;
}

.terminal-body {
  padding: 1rem;
}

.terminal-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  margin: 0.25rem 0;
  cursor: pointer;
  transition: background 0.2s;
  border-radius: 4px;
}

.terminal-line:hover {
  background: rgba(0, 255, 0, 0.1);
}

.terminal-prompt {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--green);
}

.terminal-cmd {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--cyan);
  font-weight: bold;
}

.terminal-comment {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: auto;
}

.quickstart-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
}

/* Tech Stack */
.tech-stack {
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.tech-item {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.6rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 2px solid var(--text-secondary);
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.2s;
}

.tech-item:hover {
  border-color: var(--yellow);
  color: var(--yellow);
  box-shadow: 0 0 20px rgba(255, 255, 0, 0.3);
}

/* Architecture Tabs */
.arch-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.arch-tab {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: transparent;
  border: 2px solid var(--text-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.arch-tab:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.arch-tab.active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--bg-dark);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.4);
}

@media (max-width: 600px) {
  .arch-tab {
    font-size: 0.4rem;
    padding: 0.5rem 0.75rem;
  }
}

/* Questions Page */
.questions-page {
  padding: 6rem 2rem 4rem;
  max-width: 900px;
  margin: 0 auto;
}

.questions-header {
  text-align: center;
  margin-bottom: 4rem;
}

.questions-title {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(1rem, 4vw, 1.5rem);
  color: var(--cyan);
  text-shadow: 0 0 20px var(--cyan);
}

.blink {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.questions-subtitle {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.questions-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.question-box {
  background: var(--bg-card);
  border: 3px solid var(--text-secondary);
  transition: all 0.3s;
}

.question-box:hover {
  border-color: var(--magenta);
}

.question-box.expanded {
  border-color: var(--magenta);
  box-shadow: 0 0 30px rgba(255, 0, 255, 0.2);
}

.question-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  cursor: pointer;
  flex-wrap: wrap;
}

.question-number {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.6rem;
  padding: 0.5rem 0.75rem;
  background: var(--magenta);
  color: var(--bg-dark);
}

.question-category {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--yellow);
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--yellow);
}

.question-title {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.65rem;
  color: var(--text-primary);
  flex: 1;
  min-width: 150px;
}

.expand-icon {
  font-family: 'Press Start 2P', cursive;
  font-size: 1rem;
  color: var(--cyan);
  margin-left: auto;
}

.question-content {
  padding: 0 1.5rem 1.5rem;
  border-top: 2px dashed var(--text-secondary);
  margin-top: -0.5rem;
  padding-top: 1.5rem;
}

.question-item {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.question-bullet {
  color: var(--green);
  flex-shrink: 0;
}

.question-cta {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--text-secondary);
}

.cta-link {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.55rem;
  color: var(--cyan);
  text-decoration: none;
  transition: all 0.2s;
}

.cta-link:hover {
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
}

/* Footer */
.footer {
  border-top: 3px solid var(--green);
  padding: 3rem 2rem;
  text-align: center;
  background: rgba(0, 255, 0, 0.02);
}

.footer-pixels {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 2rem;
}

.footer-pixel {
  width: 8px;
  height: 8px;
  background: var(--green);
  opacity: 0.3;
}

.footer-pixel:nth-child(odd) {
  opacity: 0.6;
}

.footer-pixel:nth-child(3n) {
  background: var(--cyan);
}

.footer-pixel:nth-child(5n) {
  background: var(--magenta);
}

.footer-text {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.footer-strawberry {
  width: 20px;
  height: 20px;
  image-rendering: pixelated;
  vertical-align: middle;
}

.footer-version {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.remix-link {
  font-family: 'Press Start 2P', cursive;
  font-size: 0.55rem;
  color: var(--magenta);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--magenta);
  transition: all 0.2s;
}

.remix-link:hover {
  background: var(--magenta);
  color: var(--bg-dark);
  box-shadow: 0 0 20px rgba(255, 0, 255, 0.4);
}

/* Easter Egg */
.easter-egg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: flash 0.5s ease-out;
}

@keyframes flash {
  0% { background: white; }
  100% { background: rgba(0, 0, 0, 0.9); }
}

.easter-content {
  font-family: 'Press Start 2P', cursive;
  font-size: clamp(1rem, 4vw, 2rem);
  color: var(--yellow);
  text-shadow: 0 0 30px var(--yellow);
  animation: pulse-glow 0.3s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
  from { text-shadow: 0 0 30px var(--yellow); }
  to { text-shadow: 0 0 60px var(--yellow), 0 0 100px var(--orange); }
}

/* Responsive */
@media (max-width: 768px) {
  .nav-content {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero-content {
    padding-top: 2rem;
  }
  
  .console-image {
    width: 150px;
    height: 150px;
  }
  
  .question-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .expand-icon {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
  }
  
  .question-box {
    position: relative;
  }
}

@media (max-width: 480px) {
  .code-tab {
    padding: 0.75rem 1rem;
    font-size: 0.45rem;
  }
  
  .spec-item {
    flex-direction: column;
    gap: 0.25rem;
  }
}