:root {
    --background-color: #121212;
    --text-color: #ffffff;
    --accent-color: #50e3c2;
    --border-color: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    height: 100vh;
    overflow: hidden;
}

#game-wrapper {
    position: relative;
    border: 2px solid var(--border-color);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

#game-canvas {
    background-color: #000;
    display: block;
}

#hud {
    position: absolute;
    top: 10px;
    left: 20px;
    right: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
}

#score-container {
    text-align: left;
}

#score-container h2 {
    margin: 0;
    font-size: 1rem;
    color: #aaa;
}

#score-container p {
    margin: 5px 0 0;
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-color);
}

#lives-container {
    display: flex;
    gap: 10px;
}

.life-ship {
    width: 15px;
    height: 20px;
    fill: var(--text-color);
    transform: rotate(-90deg);
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.overlay h2 {
    font-size: 4rem;
    margin: 0;
    color: var(--accent-color);
    letter-spacing: 5px;
}

.overlay p {
    font-size: 1.5rem;
    margin-top: 10px;
}

.overlay .controls {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 1rem;
    color: #ccc;
}

.overlay .controls strong {
    color: var(--text-color);
}

.hidden {
    display: none;
}