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

body {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #000;
    font-family: Arial, sans-serif;
}

/* Mode Toggle */
#mode-toggle {
    padding: 10px;
    background: #222;
    display: flex;
    justify-content: center;
    gap: 10px;
    z-index: 100;
}

#mode-toggle button {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    background: #444;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: bold;
    font-size: 1em;
}

#mode-toggle button:hover,
#mode-toggle .nav-link:hover {
    background: #555;
}

#mode-toggle .nav-link {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    background: #444;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: bold;
    text-decoration: none;
    font-size: 1em;
}

#mode-toggle button.active {
    background: #007bff;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.5);
}

/* Editor Tools */
#editor-tools {
    padding: 15px;
    background: #222;
    display: flex;
    flex-direction: column;
    gap: 15px;
    border-bottom: 1px solid #444;
}

.editor-toolbar {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.tool-group, .layer-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.tool-group::before, .layer-controls::before {
    content: attr(data-group);
    color: #888;
    font-size: 0.9em;
}

#editor-tools button {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    background: #444;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

#editor-tools button:hover {
    background: #555;
}

#editor-tools button.active {
    background: #007bff;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

#editor-tools button i {
    font-size: 1.2em;
}

/* Tile Palette */
.tile-palette {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: 5px;
    padding: 10px;
    background: #333;
    border-radius: 4px;
    max-height: 200px;
    overflow-y: auto;
}

.tile-palette .tile {
    width: 40px;
    height: 40px;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tile-palette .tile:hover {
    border-color: #007bff;
}

.tile-palette .tile.selected {
    border-color: #007bff;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.5);
}

/* Game Container */
#game-container {
    flex: 1;
    width: 100%;
    position: relative;
    overflow: hidden;
    background: #111;
}

/* Game Controls */
#controls {
    width: 100%;
    padding: 20px;
    background: rgba(51, 51, 51, 0.9);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    backdrop-filter: blur(5px);
}

.d-pad {
    display: grid;
    grid-template-columns: repeat(3, 40px);
    grid-template-rows: repeat(3, 40px);
    gap: 5px;
}

.d-pad button {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
    background: #666;
    color: white;
    font-size: 20px;
    touch-action: manipulation;
    transition: all 0.1s ease;
}

.d-pad button:active {
    background: #888;
    transform: scale(0.95);
}

.action-buttons {
    display: flex;
    gap: 20px;
}

.action-buttons button {
    width: 60px;
    height: 60px;
    border: none;
    border-radius: 50%;
    background: #666;
    color: white;
    font-size: 16px;
    font-weight: bold;
    touch-action: manipulation;
    transition: all 0.1s ease;
}

.action-buttons button:active {
    background: #888;
    transform: scale(0.95);
}

/* Hide empty d-pad cells */
.d-pad button:nth-child(1),
.d-pad button:nth-child(3),
.d-pad button:nth-child(7),
.d-pad button:nth-child(9) {
    visibility: hidden;
}

/* Debug Mode */
.debug-info {
    position: fixed;
    top: 10px;
    left: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: #00ff00;
    padding: 10px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    pointer-events: none;
    z-index: 1000;
}

/* Responsive Design */
@media (max-width: 768px) {
    #editor-tools {
        padding: 10px;
    }

    .editor-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .tool-group, .layer-controls {
        justify-content: center;
    }

    #controls {
        padding: 10px;
    }

    .action-buttons button {
        width: 50px;
        height: 50px;
    }
}

/* Tooltips */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 5px 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 1000;
}

/* Animations */
@keyframes buttonPress {
    0% { transform: scale(1); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

.button-press {
    animation: buttonPress 0.1s ease;
}