.regex-checker {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
    font-family: Arial, sans-serif;
    color: #f0f0f0;
}

.regex-checker label {
    font-weight: bold;
    margin-bottom: 4px;
}

.regex-checker input[type="text"],
.regex-checker textarea {
    background-color: #111;
    color: #f0f0f0;
    border: 1px solid #555;
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 14px;
    width: 100%;
    box-sizing: border-box;
}

.regex-options {
    display: flex;
    gap: 10px;
    margin-bottom: 6px;
}

.regex-options label {
    font-weight: normal;
    cursor: pointer;
}

#checkRegexBtn {
    background-color: #222;
    color: #f0f0f0;
    border: 1px solid #444;
    padding: 8px 16px;
    font-size: 14px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    align-self: flex-start;
}

#checkRegexBtn:hover {
    background-color: #333;
    border-color: #666;
}

#regexStatus {
    font-size: 14px;
}

#regexOutput {
    background-color: #111;
    color: #f0f0f0;
    border: 1px solid #444;
    border-radius: 4px;
    padding: 10px;
    min-height: 80px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

#regexOutput mark {
    background-color: #ffcc00;
    color: #111;
    padding: 0 2px;
    border-radius: 2px;
}

.regex-options input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: #ff987f;
    cursor: pointer;
}

#checkRegexBtn {
    user-select: none;
}