body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 25px;
    background-color: #f8f9fa;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

h2 {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    margin-bottom: 30px;
}

.upload-label {
    display: inline-block;
    padding: 12px 24px;
    background-color: #3498db;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
    margin-bottom: 20px;
}

.upload-label:hover {
    background-color: #2980b9;
}

#imageInput {
    display: none;
}

#copyBtn {
    display: none;
    margin-bottom: 10px;
    padding: 8px 16px;
    background-color: #60a4e7;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
    transition: background-color 0.2s, transform 0.1s;
}

#copyBtn:hover {
    background-color: #0984e3;
}

#preview {
    max-width: 99%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
    display: none;
}

#preview[src] {
    display: block;
}

#output {
    background: #2d3436;
    color: #dfe6e9;
    padding: 20px;
    border-radius: 8px;
    white-space: pre-wrap;
    word-break: break-all;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    overflow-x: auto;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    min-height: 50px;
}

@media (max-width: 600px) {
    .upload-label {
        display: block;
        text-align: center;
    }
}