main {
    max-width: 1000px;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
}

.crud-section {
    background: var(--card-bg);
    border-radius: 0.75rem;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.crud-section:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.crud-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.crud-section h2 i {
    color: var(--secondary-color);
}

.data-source-section {
    background: linear-gradient(135deg, 
        rgba(52, 152, 219, 0.1), 
        rgba(44, 62, 80, 0.05));
    border-left: 4px solid var(--secondary-color);
}

.source-controls {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.source-controls label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.source-controls label:hover {
    background: rgba(52, 152, 219, 0.1);
}

.source-controls input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--secondary-color);
}

.crud-form {
    display: grid;
    gap: 1.5rem;
    margin-top: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--card-bg);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.project-select {
    margin-bottom: 1rem;
}

.crud-button {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: white;
}

.crud-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.create-btn {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
}

.create-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.4);
}

.update-btn {
    background: linear-gradient(135deg, var(--secondary-color), #5dade2);
}

.update-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.delete-btn {
    background: linear-gradient(135deg, #e74c3c, #ec7063);
}

.delete-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
}

.secondary {
    background: linear-gradient(135deg, #95a5a6, #bdc3c7);
}

.secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(149, 165, 166, 0.4);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.danger-zone {
    border-top: 2px solid #e74c3c;
    padding-top: 1rem;
    margin-top: 2rem;
}

.delete-preview {
    background: #fff5f5;
    border: 2px solid #fadbd8;
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-top: 1rem;
}

.project-info {
    background: var(--card-bg);
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 1rem 0;
    border-left: 4px solid var(--secondary-color);
}

.project-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.project-info p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.status-message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    color: white;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
    max-width: 400px;
}

.status-message.show {
    opacity: 1;
    transform: translateX(0);
}

.status-message.success {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
}

.status-message.error {
    background: linear-gradient(135deg, #e74c3c, #ec7063);
}

.status-message.warning {
    background: linear-gradient(135deg, #f39c12, #e67e22);
}

.example-data {
    background: #f8f9fa;
    border-radius: 0.5rem;
    padding: 1.5rem;
    border-left: 4px solid var(--secondary-color);
}

.example-form {
    font-family: 'Courier New', monospace;
    background: #ffffff;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.example-form p {
    margin: 0.5rem 0;
    padding: 0.25rem 0;
    border-bottom: 1px solid #eee;
}

.example-form p:last-child {
    border-bottom: none;
}

@media (max-width: 768px) {
    main {
        padding: var(--spacing-sm);
    }
    
    .crud-section {
        padding: var(--spacing-md);
    }
    
    .source-controls {
        flex-direction: column;
        gap: 1rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .crud-button {
        width: 100%;
        justify-content: center;
    }
    
    .status-message {
        position: relative;
        top: 0;
        right: 0;
        margin: 1rem 0;
        transform: none;
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .crud-form {
        gap: 1rem;
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 16px; 
    }
}

.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading .crud-button::after {
    content: "";
    width: 16px;
    height: 16px;
    margin-left: 0.5rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.crud-button:focus,
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: 3px solid var(--secondary-color);
    outline-offset: 2px;
}

.form-group label:has(+ input[required])::after,
.form-group label:has(+ textarea[required])::after {
    content: " *";
    color: #e74c3c;
}