/* ROBO DRIFT CHASE — Stylesheet */

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

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

:root {
  --neon-cyan: #00f5ff;
  --neon-magenta: #ff00aa;
  --neon-yellow: #ffee00;
  --neon-orange: #ff6600;
  --neon-red: #ff0033;
  --neon-green: #00ff88;
  --dark-bg: #050810;
  --panel-bg: rgba(5, 8, 20, 0.92);
  --text-primary: #e0f0ff;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: 'Rajdhani', 'Orbitron', sans-serif;
  color: var(--text-primary);
  user-select: none;
  -webkit-user-select: none;
}

#gameContainer {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dark-bg);
}

#gameCanvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  cursor: none;
}

/* ── OVERLAYS ────────────────────────────────────────────────────────────── */

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(5, 8, 20, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 10;
  transition: opacity 0.3s ease;
}

.overlay.hidden {
  display: none;
}

/* ── START SCREEN ─────────────────────────────────────────────────────────── */

#startScreen {
  background: radial-gradient(ellipse at 50% 60%, rgba(0,80,120,0.35) 0%, rgba(5,8,20,0.97) 70%);
}

.game-logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: 0.08em;
  text-align: center;
  line-height: 1.1;
  margin-bottom: 0.3em;
  background: linear-gradient(135deg, var(--neon-cyan) 0%, #ffffff 40%, var(--neon-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 16px var(--neon-cyan));
  animation: logoPulse 3s ease-in-out infinite alternate;
}

@keyframes logoPulse {
  from { filter: drop-shadow(0 0 12px var(--neon-cyan)) drop-shadow(0 0 30px rgba(0,245,255,0.3)); }
  to   { filter: drop-shadow(0 0 22px var(--neon-magenta)) drop-shadow(0 0 50px rgba(255,0,170,0.4)); }
}

.game-subtitle {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: clamp(0.85rem, 2vw, 1.15rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--neon-cyan);
  opacity: 0.8;
  margin-bottom: 2.5em;
}

.start-canvas-preview {
  width: min(320px, 80vw);
  height: min(180px, 45vw);
  border: 1px solid rgba(0,245,255,0.3);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 2em;
  box-shadow: 0 0 30px rgba(0,245,255,0.2), inset 0 0 20px rgba(0,0,0,0.5);
}

.best-score-display {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.15em;
  margin-bottom: 2.5em;
}

.best-score-display span {
  color: var(--neon-yellow);
  font-weight: 700;
}

.btn-primary {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: clamp(0.9rem, 2.2vw, 1.1rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.8em 2.5em;
  background: transparent;
  border: 2px solid var(--neon-cyan);
  color: var(--neon-cyan);
  cursor: pointer;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
  margin-bottom: 1em;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--neon-cyan);
  transform: translateX(-101%);
  transition: transform 0.2s ease;
  z-index: -1;
}

.btn-primary:hover {
  color: var(--dark-bg);
  box-shadow: 0 0 20px var(--neon-cyan), 0 0 40px rgba(0,245,255,0.4);
  text-shadow: none;
}

.btn-primary:hover::before {
  transform: translateX(0);
}

.btn-secondary {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.5em 1.5em;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  border-color: rgba(255,255,255,0.5);
  color: rgba(255,255,255,0.8);
}

.controls-hint {
  margin-top: 2em;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5em 2em;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  text-align: left;
}

.controls-hint span {
  color: var(--neon-cyan);
  opacity: 0.7;
}

/* ── PAUSE SCREEN ─────────────────────────────────────────────────────────── */

#pauseScreen h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 2rem;
  color: var(--neon-cyan);
  letter-spacing: 0.2em;
  margin-bottom: 1.5em;
  text-shadow: 0 0 20px var(--neon-cyan);
}

.pause-menu {
  display: flex;
  flex-direction: column;
  gap: 0.75em;
  align-items: center;
}

/* ── DEATH SCREEN ─────────────────────────────────────────────────────────── */

#deathScreen {
  background: radial-gradient(ellipse at 50% 40%, rgba(120,0,20,0.3) 0%, rgba(5,8,20,0.97) 70%);
}

#deathScreen .game-over-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: 0.1em;
  color: var(--neon-red);
  text-shadow: 0 0 20px var(--neon-red), 0 0 60px rgba(255,0,51,0.4);
  margin-bottom: 0.3em;
  animation: deathPulse 1s ease-in-out infinite alternate;
}

@keyframes deathPulse {
  from { text-shadow: 0 0 15px var(--neon-red), 0 0 40px rgba(255,0,51,0.3); }
  to   { text-shadow: 0 0 30px var(--neon-red), 0 0 80px rgba(255,0,51,0.6); }
}

.death-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1em 3em;
  margin: 1.5em 0 2em;
  text-align: left;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

.stat-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--neon-cyan);
}

.stat-value.highlight {
  color: var(--neon-yellow);
  text-shadow: 0 0 10px var(--neon-yellow);
}

.new-record {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  color: var(--neon-yellow);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1em;
  animation: recordBlink 0.5s step-end infinite;
  display: none;
}

.new-record.visible {
  display: block;
}

@keyframes recordBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ── MOBILE CONTROLS ─────────────────────────────────────────────────────── */

#mobileControls {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  display: none;
}

@media (pointer: coarse) {
  #mobileControls {
    display: block;
  }
}

.mobile-btn {
  position: absolute;
  pointer-events: all;
  border-radius: 50%;
  border: 2px solid rgba(0,245,255,0.4);
  background: rgba(0,245,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  color: rgba(0,245,255,0.6);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  touch-action: none;
  transition: background 0.1s, border-color 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.mobile-btn:active,
.mobile-btn.pressed {
  background: rgba(0,245,255,0.22);
  border-color: rgba(0,245,255,0.8);
}

#btnLeft  { bottom: 80px; left: 30px; width: 70px; height: 70px; }
#btnRight { bottom: 80px; left: 120px; width: 70px; height: 70px; }
#btnEMP   { bottom: 80px; right: 30px; width: 65px; height: 65px; border-color: rgba(0,245,255,0.5); color: rgba(0,245,255,0.7); font-size: 0.6rem; }
#btnBoost { bottom: 160px; right: 30px; width: 65px; height: 65px; border-color: rgba(255,102,0,0.5); color: rgba(255,102,0,0.7); font-size: 0.6rem; }
#btnHack  { bottom: 80px; right: 110px; width: 55px; height: 55px; border-color: rgba(0,255,136,0.5); color: rgba(0,255,136,0.7); font-size: 0.6rem; }

/* ── SOUND TOGGLE ─────────────────────────────────────────────────────────── */

#soundToggle {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 20;
  background: rgba(5,8,20,0.7);
  border: 1px solid rgba(0,245,255,0.3);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1.1rem;
  transition: border-color 0.2s, background 0.2s;
  color: rgba(255,255,255,0.7);
}

#soundToggle:hover {
  border-color: var(--neon-cyan);
  background: rgba(0,245,255,0.1);
}

/* ── LOADING ──────────────────────────────────────────────────────────────── */

#loadingScreen {
  position: absolute;
  inset: 0;
  background: var(--dark-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.5s ease;
}

#loadingScreen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-bar-wrap {
  width: 260px;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 1em;
}

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

.loading-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.4);
  margin-top: 0.8em;
}