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

html, body {
    background: #111;
    position: fixed;
    inset: 0;
    overflow: hidden;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
}

#game-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    height: 100%;
}

#game-canvas {
    display: block;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    background: #000;
}

/* Touch Controls */
#touch-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 10px 16px;
    flex-shrink: 0;
}

#touch-dpad {
    display: flex;
    gap: 8px;
    align-items: center;
}

#touch-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.touch-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 22px;
    font-weight: bold;
    opacity: 0.6;
    cursor: pointer;
    touch-action: none;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

.touch-btn:active {
    opacity: 1;
    background: rgba(255, 255, 255, 0.3);
}

.action-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    font-size: 13px;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.action-btn[data-key="jump"] {
    background: rgba(68, 136, 255, 0.3);
    border-color: rgba(68, 136, 255, 0.6);
    color: #88bbff;
}

.action-btn[data-key="jump"]:active {
    background: rgba(68, 136, 255, 0.5);
}

.action-btn[data-key="shoot"] {
    background: rgba(255, 68, 68, 0.3);
    border-color: rgba(255, 68, 68, 0.6);
    color: #ff8888;
}

.action-btn[data-key="shoot"]:active {
    background: rgba(255, 68, 68, 0.5);
}

/* Hide touch controls on desktop */
@media (hover: hover) and (pointer: fine) {
    #touch-controls {
        display: none;
    }

    body {
        position: static;
        min-height: 100vh;
    }
}