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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: white;
}

.game-container {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.game-header {
    margin-bottom: 20px;
}

.game-header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-board {
    display: flex;
    justify-content: space-around;
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 10px;
}

.score-board span {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

#gameCanvas {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin: 20px 0;
}

.game-controls {
    margin: 20px 0;
}

.game-controls button {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    border: none;
    color: white;
    padding: 12px 24px;
    margin: 0 10px;
    border-radius: 25px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.game-controls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.game-controls button:active {
    transform: translateY(0);
}

.game-controls button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.instructions {
    margin-top: 20px;
    font-size: 0.9em;
    opacity: 0.8;
}

.instructions p {
    margin: 5px 0;
}

/* Game Over Screen */
.game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    font-size: 1.5em;
    display: none;
}

.game-over h2 {
    color: #ff6b6b;
    margin-bottom: 20px;
}

.game-over button {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    font-size: 1em;
    cursor: pointer;
    margin-top: 20px;
}