* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    padding: 30px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #333;
}

h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #555;
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e0e0e0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: #666;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    background-color: #666;
    color: white;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: #555;
}

.btn-primary {
    background-color: #333;
    margin-right: 10px;
}

.btn-primary:hover {
    background-color: #222;
}

.btn-secondary {
    background-color: #999;
}

.btn-secondary:hover {
    background-color: #888;
}

.preview-section {
    margin-bottom: 30px;
}

.label-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    min-height: 100px;
}

.label {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 4px;
    background-color: #fafafa;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.label-content {
    flex: 1;
}

.label-name {
    font-weight: bold;
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
}

.label-code {
    font-size: 14px;
    color: #666;
}

.remove-btn {
    background-color: transparent;
    border: none;
    color: #999;
    font-size: 24px;
    cursor: pointer;
    padding: 0 5px;
    line-height: 1;
}

.remove-btn:hover {
    color: #666;
}

.empty-message {
    color: #999;
    text-align: center;
    padding: 40px;
    font-size: 14px;
}

.action-section {
    display: flex;
    gap: 10px;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    .label-container {
        grid-template-columns: 1fr;
    }

    .action-section {
        flex-direction: column;
    }

    .btn-primary {
        margin-right: 0;
        margin-bottom: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    h1 {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .form-group input {
        font-size: 16px;
    }

    .btn {
        width: 100%;
    }
}