body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

h1, h2 {
    text-align: center;
    color: #1a237e;
}

.main-content {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.controls-column, .canvas-column, .visualization-column {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #fafafa;
}

.controls-column { flex: 1; }
.canvas-column { flex: 2; align-items: center; }
.visualization-column { flex: 1; }

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

button, .file-label {
    padding: 10px 15px;
    border: none;
    background-color: #3f51b5;
    color: white;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
    text-align: center;
    transition: background-color 0.2s;
}

button:hover, .file-label:hover {
    background-color: #303f9f;
}

button:active {
    background-color: #1a237e;
}

#clearMemoryBtn {
    background-color: #d32f2f;
}
#clearMemoryBtn:hover {
    background-color: #b71c1c;
}

input[type="text"], select {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 100%;
    box-sizing: border-box;
}

#drawingCanvas {
    border: 2px solid #333;
    cursor: crosshair;
    touch-action: none; /* для мобильных устройств */
}

#predictionOutput {
    margin-top: 10px;
    font-size: 1.2em;
    font-weight: bold;
    color: #3f51b5;
    text-align: center;
    height: 30px;
}

.visualization-column h3 {
    margin: 0 0 5px 0;
    font-size: 1em;
    color: #555;
    text-align: center;
}

.viz-item {
    text-align: center;
    background: #fff;
    padding: 10px;
    border: 1px solid #eee;
    border-radius: 4px;
}

.viz-item canvas {
    border: 1px solid #ccc;
}

#vizL3 {
    height: 120px;
    overflow-y: auto;
    background: #e8eaf6;
    border: 1px solid #c5cae9;
    padding: 5px;
    font-size: 11px;
    text-align: left;
    white-space: pre-wrap;
    word-wrap: break-word;
}