/* Custom styles for a modern aesthetic */
body {
    font-family: 'Inter', sans-serif;
    touch-action: manipulation; /* Prevents double-tap zoom on mobile */
    background-color: #111827; /* bg-gray-900 */
}
#screen {
    background: #000;
    display: block;
    width: 100%;
    aspect-ratio: 240 / 160; /* GBA screen aspect ratio */
    border-radius: 0.5rem;
    image-rendering: pixelated; /* Keep sharp pixels for retro games */
}
.control-btn {
    transition: all 0.1s ease-in-out;
    user-select: none; /* Prevent text selection */
    -webkit-user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(255, 255, 255, 0.05);
}
.control-btn:active {
    transform: scale(0.95);
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}
.overlay-btn {
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}
.overlay-btn:active {
     background-color: rgba(255, 255, 255, 0.4);
}