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

/* ─── Reset & Base ─── */
*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}

:root {
  --cyan:    #00f5ff;
  --magenta: #ff00c8;
  --yellow:  #ffec00;
  --dark:    #020817;
  --dark-2:  #0a0f1e;
  --dark-3:  #111827;
  --glass:   rgba(0, 245, 255, 0.06);
  --glass-b: rgba(0, 245, 255, 0.15);
  --text:    #e2f0ff;
  --text-dim:#6b849e;
  --glow-c:  0 0 20px rgba(0, 245, 255, 0.8), 0 0 60px rgba(0, 245, 255, 0.3);
  --glow-m:  0 0 20px rgba(255, 0, 200, 0.8), 0 0 60px rgba(255, 0, 200, 0.3);
}

html, body {
  width: 100%; height: 100%;
  background: var(--dark);
  overflow: hidden;
  font-family: 'Rajdhani', sans-serif;
  color: var(--text);
}

#canvas-container {
  position: fixed;
  inset: 0;
  z-index: 0;
}

#canvas-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* ─── HUD ─── */
#hud {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  display: none;
}

#hud.active { display: block; }

.hud-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 24px 32px;
}

.score-panel {
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 12px;
  padding: 10px 20px;
  backdrop-filter: blur(10px);
  min-width: 160px;
  text-align: center;
}

.score-label {
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--cyan);
  text-transform: uppercase;
  opacity: 0.8;
  margin-bottom: 2px;
}

.score-value {
  font-family: 'Orbitron', monospace;
  font-size: 26px;
  font-weight: 900;
  color: #fff;
  text-shadow: var(--glow-c);
  line-height: 1;
}

.coins-display {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 12px;
  padding: 10px 20px;
  backdrop-filter: blur(10px);
}

.coin-icon {
  width: 22px;
  height: 22px;
  background: var(--yellow);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--yellow), 0 0 30px rgba(255,236,0,0.4);
  flex-shrink: 0;
  animation: coinPulse 1.5s ease-in-out infinite;
}

@keyframes coinPulse {
  0%,100% { box-shadow: 0 0 12px var(--yellow), 0 0 30px rgba(255,236,0,0.4); }
  50%      { box-shadow: 0 0 20px var(--yellow), 0 0 50px rgba(255,236,0,0.6); }
}

.coins-count {
  font-family: 'Orbitron', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--yellow);
  text-shadow: 0 0 10px rgba(255,236,0,0.8);
}

/* Speed indicator */
.speed-bar-wrap {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}

.speed-label {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--cyan);
  opacity: 0.7;
}

.speed-bar {
  width: 200px;
  height: 4px;
  background: rgba(0,245,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}

.speed-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--cyan);
  width: 0%;
}

/* Lane indicators */
.lane-dots {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  pointer-events: none;
}

.lane-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.3);
  transition: all 0.2s ease;
}

.lane-dot.active {
  background: var(--cyan);
  box-shadow: var(--glow-c);
}

/* ─── Screens ─── */
.screen {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(10,15,30,0.85) 0%, rgba(2,8,23,0.97) 100%);
}

.screen.hidden {
  display: none;
}

/* ─── Loading Screen ─── */
#loading-screen {
  gap: 32px;
  background: var(--dark);
  z-index: 100;
}

.loading-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.loading-logo h1 {
  font-family: 'Orbitron', monospace;
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  letter-spacing: 4px;
  text-shadow: none;
  filter: drop-shadow(0 0 20px rgba(0,245,255,0.6));
}

.loading-logo .tagline {
  font-size: 13px;
  letter-spacing: 6px;
  color: var(--text-dim);
  text-transform: uppercase;
}

.loading-bar-wrap {
  width: 280px;
  height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
}

.loading-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 10px var(--cyan);
}

.loading-status {
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* ─── Main Menu ─── */
#menu-screen {
  gap: 0;
}

.menu-title-wrap {
  margin-bottom: 48px;
  text-align: center;
}

.menu-title-wrap h1 {
  font-family: 'Orbitron', monospace;
  font-size: clamp(36px, 7vw, 72px);
  font-weight: 900;
  background: linear-gradient(135deg, #fff 0%, var(--cyan) 50%, var(--magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 6px;
  line-height: 1.1;
  animation: titlePulse 3s ease-in-out infinite;
}

@keyframes titlePulse {
  0%,100% { filter: drop-shadow(0 0 20px rgba(0,245,255,0.5)); }
  50%      { filter: drop-shadow(0 0 40px rgba(0,245,255,0.9)) drop-shadow(0 0 80px rgba(255,0,200,0.4)); }
}

.menu-title-wrap .sub {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  letter-spacing: 8px;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 8px;
}

.menu-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 52px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: 'Orbitron', monospace;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  transition: all 0.25s ease;
  overflow: hidden;
  margin: 8px 0;
  pointer-events: all;
}

.menu-btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, #0088aa 100%);
  color: var(--dark);
  box-shadow: 0 0 30px rgba(0,245,255,0.4), inset 0 1px 0 rgba(255,255,255,0.3);
  min-width: 280px;
}

.menu-btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 100%);
}

.menu-btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 50px rgba(0,245,255,0.7), 0 10px 30px rgba(0,245,255,0.3);
}

.menu-btn-primary:active {
  transform: translateY(0) scale(0.97);
}

.menu-btn-secondary {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 13px;
  padding: 12px 36px;
}

.menu-btn-secondary:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 20px rgba(0,245,255,0.2);
}

.high-score-display {
  margin-top: 32px;
  text-align: center;
}

.hs-label {
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--text-dim);
  text-transform: uppercase;
}

.hs-value {
  font-family: 'Orbitron', monospace;
  font-size: 28px;
  font-weight: 900;
  color: var(--yellow);
  text-shadow: 0 0 15px rgba(255,236,0,0.6);
}

.controls-hint {
  margin-top: 40px;
  display: flex;
  gap: 24px;
  opacity: 0.5;
  flex-wrap: wrap;
  justify-content: center;
}

.ctrl-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.ctrl-key {
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

/* ─── Game Over Screen ─── */
#gameover-screen {
  gap: 0;
}

.gameover-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  color: var(--magenta);
  letter-spacing: 6px;
  text-shadow: var(--glow-m);
  animation: glitch 2s infinite;
  margin-bottom: 8px;
}

@keyframes glitch {
  0%,96%,100% { transform: none; text-shadow: var(--glow-m); }
  97% { transform: translate(-3px, 1px); text-shadow: 4px 0 var(--cyan), -4px 0 var(--magenta); filter: hue-rotate(30deg); }
  98% { transform: translate(3px, -1px); }
  99% { transform: translate(-1px, 2px); }
}

.gameover-sub {
  font-size: 13px;
  letter-spacing: 6px;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 48px;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.result-card {
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 12px;
  padding: 16px 28px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.result-card .label {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  letter-spacing: 3px;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.result-card .value {
  font-family: 'Orbitron', monospace;
  font-size: 28px;
  font-weight: 900;
  color: #fff;
}

.result-card.best .value { color: var(--yellow); text-shadow: 0 0 15px rgba(255,236,0,0.6); }
.result-card.coins .value { color: var(--yellow); }

.new-best-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--yellow), #ff8800);
  color: var(--dark);
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 2px;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  margin-bottom: 24px;
  animation: badgePop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes badgePop {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

/* ─── Pause Screen ─── */
#pause-screen {
  background: rgba(2,8,23,0.85);
  backdrop-filter: blur(8px);
}

.pause-title {
  font-family: 'Orbitron', monospace;
  font-size: 48px;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: 8px;
  text-shadow: var(--glow-c);
  margin-bottom: 48px;
}

/* ─── Floating score popup ─── */
.score-popup {
  position: fixed;
  font-family: 'Orbitron', monospace;
  font-size: 22px;
  font-weight: 900;
  color: var(--yellow);
  text-shadow: 0 0 15px var(--yellow);
  pointer-events: none;
  z-index: 30;
  animation: scoreFloat 1.2s ease-out forwards;
}

@keyframes scoreFloat {
  0%   { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-80px) scale(0.6); }
}

/* ─── Scanlines overlay ─── */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.07) 3px,
    rgba(0,0,0,0.07) 4px
  );
}

/* ─── Mobile touch zones ─── */
#touch-zones {
  position: fixed;
  inset: 0;
  z-index: 15;
  display: none;
  pointer-events: none;
}

#touch-zones.active {
  display: block;
  pointer-events: all;
}

.touch-zone {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 33.333%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 40px;
  opacity: 0;
  transition: opacity 0.15s;
}

.touch-zone:active { opacity: 1; }

#tz-left  { left: 0; }
#tz-mid   { left: 33.333%; }
#tz-right { right: 0; }

.tz-indicator {
  font-family: 'Orbitron', monospace;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--cyan);
  opacity: 0.5;
  text-transform: uppercase;
}

/* ─── Responsive ─── */
@media (max-width: 600px) {
  .result-grid { grid-template-columns: 1fr; }
  .controls-hint { display: none; }
  .menu-btn-primary { min-width: 240px; font-size: 14px; }
}