:root {
    --bg-color: #1e1e1e;
    --text-color: #d4d4d4;
    --accent-color: #569cd6; /* VS Code Blue */
    --string-color: #ce9178;
    --keyword-color: #c586c0;
    --error-color: #f44747;
    --success-color: #4ec9b0;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Fira Code', monospace;
    overflow: hidden;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 600px; /* Mobile friendly but contained */
    background: #000;
    border: 2px solid #333;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    justify-content: center;
    align-items: center;
}

.screen {
    background: rgba(30, 30, 30, 0.95);
    padding: 2rem;
    border: 1px solid var(--keyword-color);
    border-radius: 8px;
    text-align: center;
    pointer-events: auto;
    box-shadow: 0 0 20px rgba(197, 134, 192, 0.2);
    max-width: 80%;
}

.hidden {
    display: none !important;
}

h1 {
    color: var(--success-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 5px rgba(78, 201, 176, 0.5);
}

.error-text {
    color: var(--error-color);
    text-shadow: 0 0 5px rgba(244, 71, 71, 0.5);
}

.subtitle {
    color: var(--string-color);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    font-style: italic;
}

.retro-btn {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    padding: 10px 20px;
    font-family: 'Fira Code', monospace;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 1rem;
    text-transform: uppercase;
}

.retro-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-color);
}

#hud {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 1.2rem;
    pointer-events: none;
}

#current-score {
    color: var(--success-color);
    font-weight: bold;
}

#death-reason {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #888;
}

.score-board p {
    margin: 5px 0;
}