/* ============================================================
   Game of Life - Synthwave Edition
   Retro 80s Styling with CRT Effects
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Outfit:wght@300;400;600;700&display=swap');

/* ============================================================
   CSS Custom Properties - Synthwave Color Palette
   ============================================================ */

:root {
  /* Base Colors */
  --deep-space: #0d0221;
  --dark-purple: #1a0533;
  --midnight: #0a0a1a;

  /* Neon Accents */
  --neon-magenta: #ff2975;
  --vivid-purple: #8b5cf6;
  --electric-cyan: #00f0ff;
  --neon-blue: #0066ff;

  /* Warm Highlights */
  --sunset-orange: #ff8c00;
  --sunset-pink: #ff6eb4;
  --hot-pink: #ff69b4;

  /* Text */
  --star-white: #e8e0f0;
  --text-muted: #b8a8cc;

  /* Glow Colors */
  --glow-magenta: rgba(255, 41, 117, 0.6);
  --glow-cyan: rgba(0, 240, 255, 0.5);
  --glow-purple: rgba(139, 92, 246, 0.5);

  /* Typography */
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Outfit', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Transitions */
  --transition-fast: all 0.15s ease;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Cell Colors by Age */
  --cell-newborn: #ff2975;
  --cell-young: #ff6eb4;
  --cell-mature: #8b5cf6;
  --cell-old: #00f0ff;
  --cell-ancient: #ff8c00;
}

/* ============================================================
   Reset & Base Styles
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--deep-space);
  color: var(--star-white);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ============================================================
   Synthwave Grid Floor Background
   ============================================================ */

.grid-floor {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50vh;
  background:
    linear-gradient(90deg, var(--glow-magenta) 1px, transparent 1px),
    linear-gradient(0deg, var(--glow-magenta) 1px, transparent 1px);
  background-size: 50px 50px;
  transform: perspective(500px) rotateX(60deg);
  transform-origin: bottom;
  animation: gridScrollHorizontal 10s linear infinite;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

@keyframes gridScrollHorizontal {
  0% { background-position: 0 0; }
  100% { background-position: -50px 0; }
}

/* ============================================================
   Main Container
   ============================================================ */

.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================================
   Header
   ============================================================ */

.header {
  text-align: center;
  padding: var(--spacing-lg) 0;
  position: relative;
}

.title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xs);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.title-glitch {
  position: relative;
  background: linear-gradient(135deg, var(--neon-magenta), var(--electric-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow:
    0 0 20px var(--glow-magenta),
    0 0 40px var(--glow-magenta),
    0 0 60px var(--glow-magenta);
  animation: neonPulse 3s ease-in-out infinite;
}

/* Glitch Effect */
.title-glitch::before,
.title-glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--neon-magenta), var(--electric-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.title-glitch::before {
  animation: glitchLeft 2s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.title-glitch::after {
  animation: glitchRight 3s infinite linear alternate-reverse;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitchLeft {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
}

@keyframes glitchRight {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(2px, -2px); }
  40% { transform: translate(2px, 2px); }
  60% { transform: translate(-2px, -2px); }
  80% { transform: translate(-2px, 2px); }
}

@keyframes neonPulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.3); }
}

.subtitle {
  font-size: clamp(0.75rem, 2vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--electric-cyan);
  text-shadow: 0 0 10px var(--glow-cyan);
}

.tagline {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--text-muted);
  margin-top: var(--spacing-sm);
  letter-spacing: 0.1em;
}

/* ============================================================
   Game Container & Canvas
   ============================================================ */

.game-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.canvas-wrapper {
  position: relative;
  width: 100%;
  max-width: 700px;
  aspect-ratio: 1;
  border: 3px solid var(--vivid-purple);
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 0 30px var(--glow-purple),
    0 0 60px rgba(139, 92, 246, 0.3),
    inset 0 0 50px rgba(13, 2, 33, 0.8);
  background: var(--midnight);
}

.canvas-wrapper canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#gameCanvas {
  z-index: 1;
}

#glowCanvas {
  z-index: 2;
  mix-blend-mode: screen;
  filter: blur(4px);
  opacity: 0.8;
  pointer-events: none;
}

/* Chromatic Aberration Effect on Canvas */
.canvas-wrapper.chromatic {
  box-shadow:
    -3px 0 0 rgba(255, 0, 0, 0.1),
    3px 0 0 rgba(0, 255, 255, 0.1),
    0 0 30px var(--glow-purple),
    0 0 60px rgba(139, 92, 246, 0.3);
}

/* ============================================================
   Stats Bar
   ============================================================ */

.stats-bar {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(13, 2, 33, 0.8);
  border: 2px solid var(--vivid-purple);
  border-radius: 50px;
  backdrop-filter: blur(10px);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--electric-cyan);
  letter-spacing: 0.2em;
  text-shadow: 0 0 10px var(--glow-cyan);
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--neon-magenta);
  text-shadow: 0 0 15px var(--glow-magenta);
  min-width: 60px;
  text-align: center;
}

/* ============================================================
   Control Panel
   ============================================================ */

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: rgba(13, 2, 33, 0.9);
  border: 2px solid var(--vivid-purple);
  border-radius: 15px;
  backdrop-filter: blur(15px);
  margin-top: var(--spacing-md);
}

.control-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.control-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.label-text {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--electric-cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.label-value {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--neon-magenta);
  min-width: 30px;
  text-align: center;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 2px solid;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-icon {
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-magenta), var(--sunset-pink));
  border-color: var(--neon-magenta);
  color: var(--star-white);
  box-shadow: 0 0 20px var(--glow-magenta);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--glow-magenta), 0 0 50px var(--glow-magenta);
}

.btn-primary.playing {
  background: linear-gradient(135deg, var(--electric-cyan), var(--neon-blue));
  border-color: var(--electric-cyan);
  box-shadow: 0 0 20px var(--glow-cyan);
}

.btn-secondary {
  background: transparent;
  border-color: var(--vivid-purple);
  color: var(--vivid-purple);
}

.btn-secondary:hover {
  background: var(--vivid-purple);
  color: var(--star-white);
  box-shadow: 0 0 20px var(--glow-purple);
}

.btn-accent {
  background: transparent;
  border-color: var(--electric-cyan);
  color: var(--electric-cyan);
}

.btn-accent:hover {
  background: var(--electric-cyan);
  color: var(--deep-space);
  box-shadow: 0 0 20px var(--glow-cyan);
}

.btn-danger {
  background: transparent;
  border-color: var(--sunset-orange);
  color: var(--sunset-orange);
}

.btn-danger:hover {
  background: var(--sunset-orange);
  color: var(--deep-space);
  box-shadow: 0 0 20px rgba(255, 140, 0, 0.5);
}

.btn-icon-only {
  width: 44px;
  height: 44px;
  padding: 0;
  justify-content: center;
  background: transparent;
  border-color: var(--text-muted);
  color: var(--text-muted);
  font-size: 1.25rem;
}

.btn-icon-only:hover {
  border-color: var(--electric-cyan);
  color: var(--electric-cyan);
  box-shadow: 0 0 15px var(--glow-cyan);
}

/* ============================================================
   Sliders & Selects
   ============================================================ */

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 6px;
  background: var(--dark-purple);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: linear-gradient(135deg, var(--neon-magenta), var(--sunset-pink));
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 10px var(--glow-magenta);
  transition: var(--transition-smooth);
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 20px var(--glow-magenta);
}

.slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: linear-gradient(135deg, var(--neon-magenta), var(--sunset-pink));
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 0 10px var(--glow-magenta);
}

.select {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  background: var(--dark-purple);
  border: 2px solid var(--vivid-purple);
  border-radius: 8px;
  color: var(--star-white);
  cursor: pointer;
  outline: none;
  transition: var(--transition-smooth);
}

.select:hover,
.select:focus {
  border-color: var(--electric-cyan);
  box-shadow: 0 0 15px var(--glow-cyan);
}

.select option {
  background: var(--deep-space);
  color: var(--star-white);
}

.select optgroup {
  color: var(--electric-cyan);
  font-weight: 600;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  margin-top: auto;
}

.instructions {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.key {
  display: inline-block;
  padding: 2px 8px;
  background: var(--dark-purple);
  border: 1px solid var(--vivid-purple);
  border-radius: 4px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--electric-cyan);
  margin: 0 2px;
}

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

.heart {
  color: var(--neon-magenta);
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* ============================================================
   Responsive Design
   ============================================================ */

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-sm);
  }

  .controls {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .control-group {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .stats-bar {
    gap: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .stat-value {
    font-size: 1.25rem;
  }

  .btn-text {
    display: none;
  }

  .btn {
    padding: var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.625rem;
  }

  .canvas-wrapper {
    border-width: 2px;
  }

  .slider {
    width: 80px;
  }

  .select {
    max-width: 120px;
  }
}

/* ============================================================
   Utility Classes
   ============================================================ */

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Animations
   ============================================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Apply animations */
.header {
  animation: slideUp 0.8s ease-out;
}

.game-container {
  animation: slideUp 0.8s ease-out 0.2s both;
}

.controls {
  animation: slideUp 0.8s ease-out 0.4s both;
}

.footer {
  animation: fadeIn 0.8s ease-out 0.6s both;
}