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

body {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}

.header-content {
    background: rgba(0, 255, 136, 0.1);
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.header h1 {
    font-size: 2.5rem;
    color: #00ff88;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.header p {
    color: #b0b0b0;
    font-size: 1.1rem;
}

.info-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 255, 136, 0.2);
    border: 1px solid rgba(0, 255, 136, 0.5);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    color: #00ff88;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.info-btn:hover {
    background: rgba(0, 255, 136, 0.3);
    transform: scale(1.1);
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
    align-items: start;
}

.canvas-container {
    position: relative;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

#canvas {
    display: block;
    margin: 0 auto;
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: 10px;
    background: #000;
    cursor: grab;
}

#canvas:active {
    cursor: grabbing;
}

.canvas-overlay {
    position: absolute;
    top: 30px;
    left: 30px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.zoom-info {
    background: rgba(0, 0, 0, 0.8);
    color: #00ff88;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.reset-btn {
    background: rgba(255, 136, 0, 0.2);
    border: 1px solid rgba(255, 136, 0, 0.5);
    color: #ff8800;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.reset-btn:hover {
    background: rgba(255, 136, 0, 0.3);
    transform: translateY(-2px);
}

.controls-panel {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.control-group {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
}

.control-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.control-group label {
    display: block;
    color: #00ff88;
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 1rem;
}

.control-group small {
    color: #888;
    font-weight: normal;
    font-size: 0.85rem;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(0, 255, 136, 0.2);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #00ff88;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #00ff88;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.color-controls, .animation-controls, .tool-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

input[type="color"] {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    padding: 0;
}

.control-btn, .toggle-btn {
    background: rgba(0, 255, 136, 0.2);
    border: 1px solid rgba(0, 255, 136, 0.5);
    color: #00ff88;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.control-btn:hover, .toggle-btn:hover {
    background: rgba(0, 255, 136, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.toggle-btn.active {
    background: rgba(0, 255, 136, 0.4);
    border-color: #00ff88;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.info-panel {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    display: none;
}

.info-panel h3 {
    color: #00ff88;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.info-panel p {
    margin-bottom: 10px;
    line-height: 1.5;
    color: #d0d0d0;
}

.info-panel strong {
    color: #00ff88;
}

.footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    border-top: 1px solid rgba(0, 255, 136, 0.2);
    color: #888;
}

.footer a {
    color: #00ff88;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: #44ffaa;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.footer em {
    color: #666;
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .canvas-container {
        padding: 15px;
    }
    
    .canvas-overlay {
        top: 20px;
        left: 20px;
    }
    
    .color-controls, .animation-controls, .tool-controls {
        justify-content: center;
    }
    
    .control-btn, .toggle-btn {
        font-size: 0.8rem;
        padding: 6px 10px;
    }
}

@media (max-width: 480px) {
    .app-container {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .controls-panel {
        padding: 15px;
    }
    
    .info-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}

/* Animation effects */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(0, 255, 136, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 255, 136, 0); }
}

.control-btn.active, .toggle-btn.active {
    animation: pulse 2s infinite;
}

/* Smooth transitions */
* {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}