body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    background-color: #f8f9fa;
    color: #333;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

h1, h2, h3 {
    color: #0056b3;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
}

.tool {
    margin-bottom: 40px;
}

#json-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: "Courier New", Courier, monospace;
    font-size: 14px;
    box-sizing: border-box;
    resize: vertical;
}

.buttons {
    margin-bottom: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

button {
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    color: #fff;
    transition: background-color 0.3s;
}

#validate-format {
    background-color: #007bff;
}

#validate-format:hover {
    background-color: #0056b3;
}

#copy {
    background-color: #28a745;
}

#copy:hover {
    background-color: #1e7e34;
}

#clear {
    background-color: #dc3545;
}

#clear:hover {
    background-color: #c82333;
}

#status-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 5px;
    font-weight: bold;
    display: none; /* Hidden by default */
}

#status-message.success {
    background-color: #d4edda;
    color: #155724;
    display: block;
}

#status-message.error {
    background-color: #f8d7da;
    color: #721c24;
    display: block;
}

.content {
    margin-top: 30px;
}

.content h2 {
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-top: 30px;
}

ul, ol {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

code {
    background-color: #e9ecef;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: "Courier New", Courier, monospace;
}