body {
    padding-top: 60px;
    background-color: #f8f9fa;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
}

.navbar-brand {
    color: #666;
    font-size: 1rem;
}

.navbar-brand:hover {
    color: #333;
}

.tool-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.json-editor {
    width: 100%;
    min-height: 400px;
    font-family: Consolas, Monaco, 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre;
    resize: vertical;
    border: none;
    padding: 10px;
    background-color: #fff;
}

.json-editor:focus {
    outline: none;
}

.error-message {
    color: #dc3545;
    font-size: 14px;
}

.card {
    border: none;
    box-shadow: 0 0 10px rgba(0,0,0,.05);
}

.card-header {
    border-bottom: 1px solid rgba(0,0,0,.08);
}

.card-footer {
    border-top: 1px solid rgba(0,0,0,.08);
}

.editor-label {
    font-weight: 500;
    color: #444;
}

@media (max-width: 768px) {
    .tool-container {
        padding: 10px;
    }
    
    .json-editor {
        min-height: 300px;
    }
    
    .btn {
        padding: 0.375rem 0.5rem;
        font-size: 0.875rem;
    }
    
    .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .btn-group .btn {
        flex: 1;
        white-space: nowrap;
        min-width: auto;
    }
    
    .card-footer {
        padding: 0.75rem;
    }
}

/* 添加按钮hover效果 */
.btn {
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}