/* Theme Color Palette & Global Variables */
:root {
  --bg-dark: #060913;
  --bg-gradient: linear-gradient(135deg, #04060c 0%, #0c142b 100%);
  --panel-bg: rgba(13, 22, 47, 0.65);
  --panel-border: rgba(0, 162, 255, 0.2);
  
  --neon-blue: hsl(195, 100%, 50%);
  --neon-blue-glow: hsla(195, 100%, 50%, 0.4);
  
  --neon-green: hsl(145, 100%, 50%);
  --neon-green-glow: hsla(145, 100%, 50%, 0.4);
  
  --neon-orange: hsl(35, 100%, 50%);
  --neon-orange-glow: hsla(35, 100%, 50%, 0.4);
  
  --neon-yellow: hsl(50, 100%, 50%);
  --neon-yellow-glow: hsla(50, 100%, 50%, 0.4);

  --neon-red: hsl(355, 100%, 55%);
  --neon-red-glow: hsla(355, 100%, 55%, 0.4);
  
  --text-main: #f0f4ff;
  --text-muted: #8ea3cd;
  
  --glow-radius: 12px;
  --font-display: 'Outfit', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  background: var(--bg-dark);
  background-image: var(--bg-gradient);
  color: var(--text-main);
  font-family: var(--font-display);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
}

/* Wrapper and layout */
.game-wrapper {
  width: 100%;
  max-width: 960px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Header styling */
.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 12px;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: 2px;
}

.neon-text-blue {
  color: var(--neon-blue);
  text-shadow: 0 0 10px var(--neon-blue-glow);
}

.neon-text-green {
  color: var(--neon-green);
  text-shadow: 0 0 10px var(--neon-green-glow);
}

.header-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}

/* Buttons */
button {
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  backdrop-filter: blur(10px);
}

.icon-btn:hover {
  border-color: var(--neon-blue);
  box-shadow: 0 0 10px var(--neon-blue-glow);
  transform: scale(1.05);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.text-btn {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
  backdrop-filter: blur(10px);
}

.text-btn:hover {
  border-color: var(--neon-green);
  box-shadow: 0 0 10px var(--neon-green-glow);
  color: var(--neon-green);
}

/* Main Arena Container */
.game-container {
  position: relative;
  width: 100%;
  aspect-ratio: 8 / 5; /* matches canvas 800x500 ratio */
  background: #020308;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 
              0 0 0 1px var(--panel-border);
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Scoreboard Overlay */
.scoreboard {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  background: rgba(8, 12, 28, 0.85);
  border: 1.5px solid var(--panel-border);
  border-radius: 12px;
  padding: 10px 24px;
  gap: 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  pointer-events: none;
  z-index: 10;
  animation: slide-down 0.4s ease-out;
}

.board-column {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.board-column .label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}

.scoreboard-led .value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  color: var(--neon-green);
  text-shadow: 0 0 8px var(--neon-green-glow);
  letter-spacing: 1px;
}

/* Lives row styling */
.lives-row {
  display: flex;
  gap: 8px;
  font-size: 1.6rem;
  line-height: 1.8rem;
}

.heart {
  color: #1e2538;
  text-shadow: none;
  transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.heart.active {
  color: var(--neon-red);
  text-shadow: 0 0 10px var(--neon-red-glow), 0 0 20px rgba(255, 0, 50, 0.3);
  transform: scale(1.1);
}

/* Interactive Menu Overlay */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 7, 18, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  backdrop-filter: blur(12px);
  transition: opacity 0.3s ease;
}

.glass-card {
  background: var(--panel-bg);
  border: 1.5px solid var(--panel-border);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.8),
              0 0 40px rgba(0, 162, 255, 0.05);
  border-radius: 20px;
  padding: 36px;
  max-width: 600px;
  width: 90%;
  text-align: center;
  backdrop-filter: blur(10px);
}

.menu-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: 4px;
  margin-bottom: 8px;
}

.menu-tagline {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  letter-spacing: 0.5px;
}

/* Mode Buttons */
.mode-selection {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.mode-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 18px;
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  text-align: left;
  transition: all 0.2s ease;
}

.mode-icon {
  font-size: 2rem;
  grid-row: 1 / 3;
}

.mode-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.mode-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.mode-btn.showdown:hover {
  border-color: var(--neon-blue);
  background: rgba(0, 162, 255, 0.08);
  box-shadow: 0 0 15px rgba(0, 162, 255, 0.2);
  transform: translateY(-2px);
}

/* High Score section */
.high-scores {
  display: flex;
  justify-content: center;
  gap: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 18px;
  font-size: 0.95rem;
}

.score-item {
  color: var(--text-muted);
}

.score-item span:last-child {
  font-weight: 700;
  margin-left: 6px;
}

/* Results Display Overlay */
.result-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: 2px;
}

.result-status {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.stats-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.stat-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 12px 6px;
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--neon-blue);
  text-shadow: 0 0 6px var(--neon-blue-glow);
}

.result-detail {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-main);
  background: rgba(8, 12, 28, 0.4);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 30px;
}

.result-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
}

.action-btn {
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 700;
  padding: 12px 28px;
  letter-spacing: 1px;
}

.action-btn.primary {
  background: var(--neon-green);
  border: 1px solid var(--neon-green);
  color: #040813;
  box-shadow: 0 4px 15px rgba(0, 255, 127, 0.3);
}

.action-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 127, 0.5);
}

.action-btn.secondary {
  background: transparent;
  border: 1px solid var(--panel-border);
  color: var(--text-main);
}

.action-btn.secondary:hover {
  border-color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

/* How to play overlay details */
.how-to-card {
  text-align: left;
  max-width: 520px;
}

.how-to-card h2 {
  text-align: center;
  margin-bottom: 24px;
  font-size: 1.6rem;
  letter-spacing: 1px;
}

.instructions-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.instruction-step {
  display: flex;
  gap: 16px;
}

.step-num {
  width: 28px;
  height: 28px;
  background: var(--neon-blue);
  color: #000;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 10px var(--neon-blue-glow);
}

.instruction-step strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--text-main);
}

.instruction-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.how-to-card .action-btn.primary {
  width: 100%;
}

/* Toast Notifications */
.game-toast {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 255, 127, 0.2);
  border: 1px solid var(--neon-green);
  box-shadow: 0 0 15px var(--neon-green-glow);
  color: var(--neon-green);
  text-shadow: 0 0 8px rgba(0, 255, 127, 0.4);
  font-size: 2.2rem;
  font-weight: 800;
  padding: 10px 30px;
  border-radius: 12px;
  letter-spacing: 3px;
  text-align: center;
  animation: pop-up 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  pointer-events: none;
  z-index: 10;
}

.game-toast.bomb {
  background: rgba(255, 50, 50, 0.2);
  border-color: var(--neon-red);
  box-shadow: 0 0 15px var(--neon-red-glow);
  color: var(--neon-red);
  text-shadow: 0 0 8px rgba(255, 50, 50, 0.4);
}

.game-toast.star {
  background: rgba(255, 230, 0, 0.2);
  border-color: var(--neon-yellow);
  box-shadow: 0 0 15px var(--neon-yellow-glow);
  color: var(--neon-yellow);
  text-shadow: 0 0 8px rgba(255, 230, 0, 0.4);
}

/* Animations */
@keyframes slide-down {
  from { transform: translate(-50%, -40px); opacity: 0; }
  to { transform: translate(-50%, 0); opacity: 1; }
}

@keyframes pop-up {
  0% { transform: translate(-50%, 30px) scale(0.8); opacity: 0; }
  100% { transform: translate(-50%, 0) scale(1); opacity: 1; }
}

.animate-fade-in {
  animation: fade-in 0.3s ease-out forwards;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Scaling Utilities */
.hidden {
  display: none !important;
}

.shake {
  animation: screen-shake 0.35s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes screen-shake {
  10%, 90% { transform: translate3d(-3px, 0, 0); }
  20%, 80% { transform: translate3d(4px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-6px, 0, 0); }
  40%, 60% { transform: translate3d(6px, 0, 0); }
}

.game-footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 12px;
}