/* Theme Variables */
.theme-classic {
    --bg-color: #1a1a1a;
    --panel-bg: #2a2a2a;
    --canvas-bg: #111;
    --text-color: #fff;
    --border-color: #444;
}

.theme-cyberpunk {
    --bg-color: #0d0116;
    --panel-bg: #1b052e;
    --canvas-bg: #05000a;
    --text-color: #00ffcc;
    --border-color: #ff007f;
}

.theme-gameboy {
    --bg-color: #8b956d;
    --panel-bg: #9bbc0f;
    --canvas-bg: #0f380f;
    --text-color: #0f380f;
    --border-color: #306230;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    transition: all 0.3s ease;
}

.game-container {
    display: flex;
    gap: 30px;
    background-color: var(--panel-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
}

.main-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1, h3 {
    margin-top: 0;
    margin-bottom: 10px;
}

#score-board {
    font-size: 20px;
    margin-bottom: 15px;
}

canvas {
    border: 4px solid var(--border-color);
    background-color: var(--canvas-bg);
}

.side-panel {
    display: flex;
    flex-direction: column;
    width: 220px;
    gap: 20px;
}

.control-section, .leaderboard-section {
    background: rgba(0, 0, 0, 0.2);
    padding: 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

button, select {
    width: 100%;
    padding: 8px;
    margin: 8px 0;
    background-color: var(--border-color);
    color: var(--text-color);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    opacity: 0.9;
}

ol {
    padding-left: 20px;
    margin: 5px 0;
}

li {
    margin-bottom: 5px;
    font-family: monospace;
    font-size: 15px;
}