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

body {
    background: #1a1a2e;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'Arial', sans-serif;
    color: white;
}

#game-container {
    position: relative;
    border: 3px solid #e94560;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(233, 69, 96, 0.5);
}

#gameCanvas {
    display: block;
    background: #2d2d44;
}

/* HUD */
#hud {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
    pointer-events: none;
}

#score, #speed {
    background: rgba(0, 0, 0, 0.6);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
}

#fuel-container {
    position: relative;
    width: 120px;
    height: 20px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid #555;
}

#fuel-bar {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00cc66);
    transition: width 0.3s, background 0.3s;
}

#fuel-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 11px;
    font-weight: bold;
    text-shadow: 1px 1px 2px black;
}