:root {
    --neon-green: #00ff88;
    --neon-pink: #ff0055;
    --neon-blue: #00ffff;
    --neon-yellow: #ffff00;
    --neon-orange: #ff8800;
    --neon-purple: #bb00ff;
    --bg-dark: #020205; 
    --current-accent: var(--neon-green);
}

body { 
    margin: 0; 
    overflow: hidden; 
    background: var(--bg-dark); 
    font-family: 'Orbitron', sans-serif; 
    color: white; 
    touch-action: none; 
    user-select: none;
    -webkit-user-select: none;
}

#bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; 
    pointer-events: none;
}

.overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(2, 2, 5, 0.95);
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    z-index: 100; transition: opacity 0.5s; text-align: center;
}

#game-over-screen, #pause-screen, #shop-screen { display: none; }
#game-over-screen { background: rgba(20, 0, 0, 0.95); }
#pause-screen { background: rgba(0, 0, 0, 0.85); border: 2px solid var(--neon-blue); box-sizing: border-box; }
#shop-screen { background: rgba(5, 5, 10, 0.98); }

h1 { 
    font-size: 10vw; 
    max-font-size: 80px;
    color: var(--neon-pink); margin: 0; text-shadow: 0 0 20px var(--neon-pink); letter-spacing: 5px; font-weight: 900; 
}

@media (min-width: 768px) { h1 { font-size: 80px; letter-spacing: 10px; } }

.stats-summary { font-size: 18px; color: var(--neon-blue); margin: 20px 0; line-height: 1.6; }
.high-score-tag { color: var(--neon-green); font-size: 14px; margin-top: 10px; }
.coin-inventory-tag { color: var(--neon-yellow); font-size: 16px; margin-top: 10px; font-weight: bold; letter-spacing: 2px; text-shadow: 0 0 10px rgba(255,255,0,0.5); }
.credit { color: rgba(255,255,255,0.3); font-size: 10px; margin-top: 30px; letter-spacing: 3px; }

.menu-btn {
    background: transparent; border: 2px solid var(--neon-green); color: var(--neon-green);
    padding: 15px 40px; margin: 10px; font-size: 18px; font-family: 'Orbitron', sans-serif;
    cursor: pointer; transition: 0.3s; width: 80%; max-width: 280px; font-weight: bold; letter-spacing: 2px;
}
.menu-btn:active, .menu-btn:hover { background: var(--neon-green); color: #000; box-shadow: 0 0 20px var(--neon-green); }
.menu-btn.hard { border-color: var(--neon-pink); color: var(--neon-pink); }
.menu-btn.hard:active, .menu-btn.hard:hover { background: var(--neon-pink); color: #000; box-shadow: 0 0 30px var(--neon-pink); }
.menu-btn.shop { border-color: var(--neon-yellow); color: var(--neon-yellow); }
.menu-btn.shop:active, .menu-btn.shop:hover { background: var(--neon-yellow); color: #000; box-shadow: 0 0 30px var(--neon-yellow); }

.track-selector { 
    display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; 
    margin-bottom: 20px; margin-top: 10px; max-width: 360px; width: 95%;
}
.track-btn { 
    padding: 10px 15px; font-size: 12px; background: transparent; border: 1px solid #333; color: #888; 
    font-family: 'Orbitron', sans-serif; cursor: pointer; transition: 0.2s; font-weight: bold; letter-spacing: 1px;
    flex-grow: 1; text-align: center; min-width: 80px;
}
.track-btn.active { border-color: var(--neon-blue); color: var(--neon-blue); box-shadow: 0 0 10px rgba(0,255,255,0.2); background: rgba(0,255,255,0.05); }

.shop-list {
    display: flex; flex-direction: column; gap: 10px; margin-top: 20px; 
    overflow-y: auto; max-height: 50vh; width: 90%; max-width: 400px;
    padding-right: 10px;
}
.shop-item {
    background: rgba(0,0,0,0.8); border: 1px solid #333; padding: 15px;
    display: flex; justify-content: space-between; align-items: center;
}
.shop-btn {
    background: transparent; border: 1px solid var(--neon-blue); color: var(--neon-blue);
    padding: 8px 15px; font-family: 'Orbitron', sans-serif; cursor: pointer; font-weight: bold; transition: 0.2s;
}
.shop-btn.buy { border-color: var(--neon-yellow); color: var(--neon-yellow); }
.shop-btn.equipped { border-color: #555; color: #555; cursor: default; }
.shop-btn.buy.disabled { border-color: #555; color: #555; cursor: not-allowed; }
.shop-btn:hover:not(.disabled):not(.equipped) { background: rgba(255,255,255,0.1); }

#ui { 
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 10; display: none; 
    box-sizing: border-box; padding: 10px;
}
.hud-group { position: absolute; top: 15px; display: flex; flex-direction: column; gap: 8px; }
#hud-left { left: 15px; width: 140px; }
#hud-right { right: 15px; width: 160px; align-items: flex-end; text-align: right; }

.stat-card { 
    background: rgba(0,0,0,0.8); border: 1px solid rgba(255,255,255,0.1);
    border-left: 4px solid var(--current-accent); padding: 10px; width: 100%; box-sizing: border-box;
    transition: border-color 0.5s;
}
#timer-race { font-size: 20px; font-variant-numeric: tabular-nums; color: white; }
.bar-container { width: 100%; height: 6px; background: #222; margin-top: 5px; overflow: hidden; }
#hp-fill { width: 100%; height: 100%; background: var(--current-accent); transition: width 0.3s, background-color 0.5s; }

.top-controls {
    position: absolute; top: 15px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 10px; z-index: 110;
}
.top-btn {
    background: rgba(0,0,0,0.6); border: 1px solid var(--neon-blue);
    color: var(--neon-blue); width: 40px; height: 40px; border-radius: 50%;
    cursor: pointer; font-size: 16px; 
    display: flex; align-items: center; justify-content: center; backdrop-filter: blur(2px);
}
.top-btn:active { transform: scale(0.9); background: var(--neon-blue); color: black; }
.top-btn.muted { border-color: var(--neon-pink); color: var(--neon-pink); }

#touch-controls {
    position: fixed; bottom: 20px; left: 0; width: 100%; height: 140px;
    z-index: 90; display: flex; pointer-events: none; padding: 0 20px; box-sizing: border-box; justify-content: space-between;
}
.control-group { display: flex; gap: 10px; pointer-events: auto; align-items: flex-end; }
.touch-btn {
    width: 70px; height: 70px; background: rgba(0, 0, 0, 0.6); border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%; color: white; font-size: 24px; display: flex; align-items: center; justify-content: center;
    backdrop-filter: blur(4px); transition: all 0.1s; -webkit-tap-highlight-color: transparent; font-weight: bold;
}
.touch-btn:active { background: var(--current-accent); color: black; border-color: white; transform: scale(0.95); }
#btn-gas { width: 80px; height: 80px; font-size: 30px; border-color: var(--neon-green); color: var(--neon-green); }
#btn-brake { border-color: var(--neon-pink); color: var(--neon-pink); }

.shift-btn {
    width: 50px; height: 50px; font-size: 16px;
    border-color: var(--neon-orange); color: var(--neon-orange);
    border-radius: 10px;
}
.shift-btn:active { background: var(--neon-orange); color: black; }

.damage-flash { animation: flash 0.1s linear 2; }
@keyframes flash { 0% { background: transparent; } 50% { background: rgba(255,0,0,0.2); } 100% { background: transparent; } }

.score-pulse { animation: scalePulse 0.3s ease-out; }
@keyframes scalePulse { 0% { transform: scale(1.2); color: var(--neon-yellow); } 100% { transform: scale(1); color: white; } }

#chaos-alert {
    position: absolute; top: 30%; left: 50%; transform: translate(-50%, -50%);
    font-size: 30px; color: var(--neon-pink); font-weight: 900;
    text-shadow: 0 0 20px var(--neon-pink); pointer-events: none; opacity: 0; z-index: 200;
    text-align: center; white-space: nowrap; letter-spacing: 5px;
}

/* NEW: Countdown Styles */
#countdown-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 120px;
    font-weight: 900;
    color: var(--neon-yellow);
    text-shadow: 0 0 30px var(--neon-yellow);
    z-index: 300;
    pointer-events: none;
    display: none;
    text-align: center;
    letter-spacing: 10px;
}

.countdown-anim {
    animation: countPulse 1s linear infinite;
}

@keyframes countPulse {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
    20% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
    80% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

.mod-popup {
    position: absolute;
    top: 25%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    border: 2px solid white;
    padding: 15px 30px;
    border-radius: 8px;
    text-align: center;
    z-index: 150;
    pointer-events: none;
    opacity: 0; 
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

#mod-popup-name {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 3px;
    margin-bottom: 5px;
}

#mod-popup-desc {
    font-size: 12px;
    color: #fff;
    opacity: 0.8;
    letter-spacing: 1px;
}

@keyframes modPopupAnim {
    0% { opacity: 0; transform: translate(-50%, 20px); }
    10% { opacity: 1; transform: translate(-50%, 0); }
    90% { opacity: 1; transform: translate(-50%, 0); }
    100% { opacity: 0; transform: translate(-50%, -20px); }
}

.mod-anim {
    animation: modPopupAnim 3s forwards ease-in-out;
}

@keyframes chaosFlash {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    20% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
    80% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(1.5); }
}