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

body {
    background-color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'Press Start 2P', 'Courier New', monospace;
    overflow: hidden;
}

#game-container {
    position: relative;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

#game-canvas {
    display: block;
    background-color: #5c94fc;
}

#start-screen,
#game-over-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.85);
    color: #fff;
    text-align: center;
    z-index: 10;
}

#start-screen h1,
#game-over-screen h1 {
    font-size: 32px;
    color: #e52521;
    text-shadow: 4px 4px 0 #000;
    margin-bottom: 40px;
    letter-spacing: 2px;
}

#start-screen p,
#game-over-screen p {
    font-size: 14px;
    margin: 10px 0;
}

.controls {
    margin-top: 30px;
    font-size: 12px;
}

.controls p {
    animation: none;
    margin: 8px 0;
    color: #ffd700;
}

.controls p:first-child {
    color: #fff;
    margin-bottom: 15px;
}

.hidden {
    display: none !important;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}