:root {
    --bg-color: #1a1a2e;
    --text-color: #f5f5f5;
    --accent-color: #e94560;
    --accent-hover: #ff2a55;
    --panel-bg: rgba(22, 33, 62, 0.9);
    --font-main: 'Press Start 2P', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    touch-action: none; /* Prevent scroll on touch */
}

#game-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16 / 9;
    background-color: #000;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    overflow: hidden;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    image-rendering: pixelated;
}

#touchZone {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    cursor: pointer;
}

#hud {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    pointer-events: none; /* Let clicks pass through */
    z-index: 10;
    font-size: 14px;
    text-shadow: 2px 2px 0 #000;
}

.hud-item {
    background: rgba(0,0,0,0.5);
    padding: 5px 10px;
    border-radius: 4px;
}

#powerupDisplay {
    color: #ffdd57;
}

/* Screens */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--panel-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 20;
    text-align: center;
}

.overlay.hidden {
    display: none;
}

.overlay h1, .overlay h2 {
    color: var(--accent-color);
    margin-bottom: 20px;
    text-shadow: 3px 3px 0px #000;
    line-height: 1.4;
}

.overlay p {
    font-size: 12px;
    margin-bottom: 30px;
    line-height: 1.5;
    max-width: 80%;
}

button {
    background: var(--accent-color);
    color: #fff;
    border: 4px solid #fff;
    padding: 15px 20px;
    font-family: var(--font-main);
    font-size: 16px;
    cursor: pointer;
    margin: 10px;
    transition: transform 0.1s, background 0.2s;
    text-transform: uppercase;
}

button:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

button:active {
    transform: scale(0.95);
}

.input-group {
    margin-bottom: 20px;
}

#playerName {
    background: transparent;
    border: 2px solid var(--text-color);
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: 16px;
    padding: 10px;
    width: 150px;
    text-align: center;
    text-transform: uppercase;
}

#playerName:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Skin Grid */
.skin-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.skin-card {
    background: rgba(0,0,0,0.5);
    border: 2px solid var(--text-color);
    padding: 10px;
    cursor: pointer;
    transition: border-color 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.skin-card:hover {
    border-color: var(--accent-color);
}

.skin-card.selected {
    border-color: #ffdd57;
    box-shadow: 0 0 10px #ffdd57;
}

.skin-card.locked {
    opacity: 0.5;
}

.skin-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 10px;
}

.skin-price {
    font-size: 10px;
    margin-top: 5px;
    color: #ffdd57;
}

/* Leaderboard */
#leaderboardList {
    width: 80%;
    max-width: 400px;
    background: rgba(0,0,0,0.5);
    border: 2px solid var(--text-color);
    padding: 10px;
    margin-bottom: 20px;
    max-height: 200px;
    overflow-y: auto;
}

.leaderboard-entry {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    border-bottom: 1px dashed rgba(255,255,255,0.2);
    font-size: 12px;
}

.leaderboard-entry:last-child {
    border-bottom: none;
}

/* Animations */
@keyframes shake {
    0% { transform: translate(1px, 1px) rotate(0deg); }
    10% { transform: translate(-1px, -2px) rotate(-1deg); }
    20% { transform: translate(-3px, 0px) rotate(1deg); }
    30% { transform: translate(3px, 2px) rotate(0deg); }
    40% { transform: translate(1px, -1px) rotate(1deg); }
    50% { transform: translate(-1px, 2px) rotate(-1deg); }
    60% { transform: translate(-3px, 1px) rotate(0deg); }
    70% { transform: translate(3px, 1px) rotate(-1deg); }
    80% { transform: translate(-1px, -1px) rotate(1deg); }
    90% { transform: translate(1px, 2px) rotate(0deg); }
    100% { transform: translate(1px, -2px) rotate(-1deg); }
}

.shake {
    animation: shake 0.5s;
}