body {
    /*background-color: #f8f9fa;*/
    /*padding: 20px 0;*/
    /*font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;*/
}
.header {
    background: linear-gradient(135deg, #6c5ce7, #a29bfe);
    color: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.4);
}
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    height: 100%;
    overflow: hidden;
}
.card-header {
    background: linear-gradient(to right, #6c5ce7, #8c7ae6);
    color: white;
    border-radius: 10px 10px 0 0 !important;
    padding: 12px 20px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.btn-primary {
    background: linear-gradient(to right, #6c5ce7, #8c7ae6);
    border: none;
    border-radius: 8px;
    padding: 10px 25px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(108, 92, 231, 0.4);
}
.btn-sm {
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 0.875rem;
}
.error-container {
    display: none;
    margin-top: 20px;
}
.feature-list {
    background-color: #f0f3ff;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}
.feature-icon {
    color: #6c5ce7;
    margin-right: 10px;
    font-weight: bold;
}
footer {
    margin-top: 30px;
    text-align: center;
    color: #6c757d;
    padding: 20px;
}
.CodeMirror {
    height: 400px;
    border-radius: 0 0 10px 10px;
    font-size: 14px;
    padding: 5px;
}
.editor-container {
    position: relative;
}
.copy-btn {
    position: absolute;
    top: 60px;
    right: 15px;
    z-index: 10;
    opacity: 0.7;
    transition: opacity 0.3s;
}
.copy-btn:hover {
    opacity: 1;
}
.tool-buttons {
    display: flex;
    gap: 10px;
}
.badge {
    font-weight: 500;
    padding: 6px 10px;
    border-radius: 20px;
}
.badge-primary {
    background: linear-gradient(to right, #6c5ce7, #8c7ae6);
}
.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 5px;
}
.status-valid {
    background-color: #2ecc71;
}
.status-invalid {
    background-color: #e74c3c;
}