/* Modern UI Styles */

body {
    margin: 0;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

#canvas {
    display: block;
    width: 100vw;
    height: 100vh;
}

#ui-panel {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 300px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    padding: 20px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

.ui-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
}

.ui-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.ui-section {
    margin-bottom: 25px;
}

.ui-section h3 {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: 600;
    color: #555;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.control-group {
    margin-bottom: 18px;
}

.control-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #666;
}

.control-group input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #e0e0e0;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin-bottom: 4px;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #000;
    cursor: pointer;
    transition: transform 0.1s;
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #000;
    cursor: pointer;
    border: none;
    transition: transform 0.1s;
}

.control-group input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.1);
}

.value-display {
    display: inline-block;
    font-size: 12px;
    color: #888;
    font-weight: 500;
    float: right;
}

.control-group input[type="color"] {
    width: 100%;
    height: 40px;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    padding: 2px;
}

.control-group select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    background: #fff;
    cursor: pointer;
    outline: none;
}

.control-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    margin-right: 8px;
}

.control-group label[for*="Check"] {
    display: flex;
    align-items: center;
}

.btn-primary,
.btn-secondary {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: #000;
    color: #fff;
}

.btn-primary:hover {
    background: #333;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: wait;
}

.btn-secondary {
    background: #f5f5f5;
    color: #333;
    border: 1px solid #ddd;
}

.btn-secondary:hover {
    background: #e8e8e8;
}

/* Scrollbar styling */
#ui-panel::-webkit-scrollbar {
    width: 6px;
}

#ui-panel::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

#ui-panel::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 3px;
}

#ui-panel::-webkit-scrollbar-thumb:hover {
    background: #555;
}