:root {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --title-color: #28a7a1;
    --border-color: #30363d;
    --input-bg: #161b22;
    --button-bg: #238636;
    --button-hover-bg: #2ea043;
    --button-copy-bg: #1f6feb;
    --button-copy-hover-bg: #388bfd;
    --button-clear-bg: #6e7681;
    --button-clear-hover-bg: #8b949e;
    --footer-text-color: #8b949e;
    --json-key-color: #79c0ff;
    --json-string-color: #a5d6ff;
    --json-number-color: #ffab70;
    --json-boolean-color: #ff7b72;
    --json-null-color: #ff7b72;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
.container {
    width: 100%;
    max-width: 800px;
    padding: 25px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}
h1 {
    color: var(--title-color);
    text-align: center;
    margin-top: 0;
}
p {
    font-size: 14px;
    line-height: 1.5;
    text-align: center;
    margin-bottom: 20px;
}
textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 13px;
    resize: vertical;
    min-height: 80px;
}
pre {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 13px;
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 400px;
    overflow-y: auto;
}
.button-container {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    flex-wrap: wrap;
    gap: 15px;
}
button {
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}
#generateButton {
    background-color: var(--button-bg);
}
#generateButton:hover {
    background-color: var(--button-hover-bg);
}
#copyButton {
    background-color: var(--button-copy-bg);
}
#copyButton:hover {
    background-color: var(--button-copy-hover-bg);
}
#clearButton {
    background-color: var(--button-clear-bg);
}
#clearButton:hover {
    background-color: var(--button-clear-hover-bg);
}
footer {
    text-align: center;
    margin-top: 30px;
    color: var(--footer-text-color);
    font-size: 12px;
}
.json-key { color: var(--json-key-color); }
.json-string { color: var(--json-string-color); }
.json-number { color: var(--json-number-color); }
.json-boolean { color: var(--json-boolean-color); }
.json-null { color: var(--json-null-color); }
.version-tag {
    font-size: 0.5em;
    color: #8b949e;
    vertical-align: super;
    margin-left: 5px;
}
.checkbox-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
    gap: 10px;
}
.checkbox-container label {
    cursor: pointer;
}