body {
    margin: 0;
    padding: 0;
    background-color: #222;
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

#game-container {
    position: relative;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    width: 800px;
    height: 600px;
}

canvas {
    background-color: #111;
    display: block;
    border: 2px solid #444;
}

#ui-layer {
    position: absolute;
    top: 10px;
    left: 15px;
    right: 15px;
    display: flex;
    justify-content: space-between;
    font-size: 20px;
    pointer-events: none;
    text-shadow: 1px 1px 2px black;
    font-weight: bold;
    align-items: center;
}

#lives-container {
    display: inline-flex;
    gap: 5px;
}

.heart {
    color: #ff3333;
    font-size: 24px;
}

.hidden {
    display: none !important;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

h1 {
    font-size: 48px;
    margin-bottom: 10px;
    color: #00bcd4;
    text-shadow: 0 0 10px rgba(0, 188, 212, 0.5);
}

p {
    font-size: 24px;
    margin-bottom: 30px;
}

button {
    padding: 12px 30px;
    font-size: 20px;
    background-color: #00bcd4;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: bold;
}

button:hover {
    background-color: #0097a7;
}