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

body {
    font-family: 'Press Start 2P', cursive, monospace;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    overflow-x: hidden;
}

#app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 20px;
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: 10px;
    border: 3px solid #fff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

header h1 {
    font-size: 2em;
    margin-bottom: 10px;
    text-shadow: 4px 4px 0 #000;
    color: #FFD700;
}

.subtitle {
    font-size: 0.5em;
    color: #FFA500;
    text-shadow: 2px 2px 0 #000;
}

#theme-section {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    border: 2px solid #fff;
}

#theme-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

#theme-input {
    flex: 1;
    min-width: 200px;
    padding: 10px;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.6em;
    background: #fff;
    border: 3px solid #000;
    border-radius: 5px;
}

.game-btn {
    padding: 10px 15px;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.6em;
    background: linear-gradient(to bottom, #4CAF50 0%, #45a049 100%);
    color: white;
    border: 3px solid #000;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 4px 0 #2d6b2f;
    transition: all 0.1s;
}

.game-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 0 #2d6b2f;
}

.game-btn:active {
    transform: translateY(2px);
    box-shadow: 0 2px 0 #2d6b2f;
}

.game-btn.danger {
    background: linear-gradient(to bottom, #f44336 0%, #d32f2f 100%);
    box-shadow: 0 4px 0 #8b1e1e;
}

.game-btn.danger:hover {
    box-shadow: 0 6px 0 #8b1e1e;
}

.game-btn.danger:active {
    box-shadow: 0 2px 0 #8b1e1e;
}

.game-btn.success {
    background: linear-gradient(to bottom, #2196F3 0%, #1976D2 100%);
    box-shadow: 0 4px 0 #0d47a1;
}

.game-btn.success:hover {
    box-shadow: 0 6px 0 #0d47a1;
}

.game-btn.success:active {
    box-shadow: 0 2px 0 #0d47a1;
}

#theme-presets {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.preset-btn {
    padding: 8px 12px;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.5em;
    background: linear-gradient(to bottom, #9C27B0 0%, #7B1FA2 100%);
    color: white;
    border: 2px solid #000;
    border-radius: 5px;
    cursor: pointer;
    box-shadow: 0 3px 0 #4a148c;
}

.preset-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 0 #4a148c;
}

#theme-preview {
    min-height: 60px;
}

#loading-message {
    text-align: center;
    font-size: 0.7em;
    padding: 20px;
    color: #FFD700;
    text-shadow: 2px 2px 0 #000;
}

#theme-gallery {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.gallery-section {
    flex: 1;
    min-width: 200px;
}

.gallery-section p {
    font-size: 0.6em;
    margin-bottom: 10px;
    color: #FFD700;
}

.gallery-item {
    image-rendering: pixelated;
    border: 2px solid #fff;
    margin: 5px;
    background: #000;
}

#main-content {
    display: grid;
    grid-template-columns: 200px 1fr 200px;
    gap: 20px;
    margin-bottom: 20px;
}

aside {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #fff;
}

aside h3 {
    font-size: 0.7em;
    margin-bottom: 15px;
    text-align: center;
    color: #FFD700;
    text-shadow: 2px 2px 0 #000;
}

#palette-tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
}

.tab-btn {
    flex: 1;
    padding: 8px 5px;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.4em;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid #fff;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: #FFD700;
    color: #000;
}

.palette-section {
    display: none;
}

.palette-section.active {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.palette-item {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid #fff;
    border-radius: 5px;
    padding: 5px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.palette-item:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.palette-item.selected {
    border-color: #FFD700;
    background: rgba(255, 215, 0, 0.3);
    box-shadow: 0 0 10px #FFD700;
}

.palette-item img {
    width: 64px;
    height: 64px;
    image-rendering: pixelated;
    display: block;
    margin: 0 auto 5px;
    background: #000;
}

.palette-item span {
    font-size: 0.35em;
    display: block;
    color: #fff;
    text-shadow: 1px 1px 0 #000;
}

#canvas-container {
    position: relative;
    background: rgba(0, 0, 0, 0.5);
    padding: 20px;
    border-radius: 10px;
    border: 3px solid #fff;
    display: flex;
    justify-content: center;
    align-items: center;
}

#level-canvas {
    border: 4px solid #000;
    background: #87CEEB;
    image-rendering: pixelated;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
    cursor: crosshair;
}

#play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

#game-hud {
    position: absolute;
    top: 30px;
    left: 30px;
    right: 30px;
    display: flex;
    justify-content: space-between;
    font-size: 0.7em;
    text-shadow: 2px 2px 0 #000;
    pointer-events: none;
}

#return-to-editor-btn {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: all;
}

#drawing-tools {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.tool-btn {
    width: 100%;
    padding: 15px;
    font-size: 1.5em;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid #fff;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s;
}

.tool-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.tool-btn.active {
    background: #FFD700;
    border-color: #FFD700;
    box-shadow: 0 0 10px #FFD700;
}

#level-settings {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#level-settings label {
    font-size: 0.5em;
    color: #FFD700;
    text-shadow: 1px 1px 0 #000;
}

#level-settings input[type="text"],
#level-settings input[type="range"],
#level-settings input[type="color"] {
    width: 100%;
    padding: 5px;
    font-family: 'Press Start 2P', monospace;
    font-size: 0.5em;
    background: #fff;
    border: 2px solid #000;
    border-radius: 3px;
}

#level-settings input[type="checkbox"] {
    margin-right: 5px;
}

#control-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #fff;
    margin-bottom: 20px;
}

footer {
    text-align: center;
    font-size: 0.6em;
    padding: 20px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
    border: 2px solid #fff;
}

footer a {
    color: #FFD700;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

#toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: #FFD700;
    padding: 15px 30px;
    border-radius: 10px;
    border: 3px solid #FFD700;
    font-size: 0.7em;
    text-shadow: 2px 2px 0 #000;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

@media (max-width: 1200px) {
    #main-content {
        grid-template-columns: 1fr;
    }
    
    aside {
        max-width: 100%;
    }
    
    .palette-section.active {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.2em;
    }
    
    .subtitle {
        font-size: 0.4em;
    }
    
    #level-canvas {
        max-width: 100%;
        height: auto;
    }
    
    .game-btn {
        font-size: 0.5em;
        padding: 8px 12px;
    }
}