.container-fluid {
            display: grid;
            background-color: white;
        }

        .header {
            width: 100%;
            height: 100px;
            background-color: #316694;
            color: white;
            padding: 20px 20px 10px 20px;
            margin-bottom: 5px;
            display: grid;
            grid-template-columns: 70% 30%;
            align-items: center;
        }

        .header .hleft h1 {
            margin: 0;
            font-size: 28px;
        }

        .header .hright {
            text-align: right;
            font-size: 16px;
        }

        .header .hright button {
            background-color: #dc3545;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            margin-top: 10px;
        }

        .main {
            display: grid;
            grid-template-columns: 30% 45% 25%;
            background-color: #e7ebee;
            min-height: 80vh;
        }

        .sidebar {
            border: 1px solid #ddd;
            padding: 10px;
            margin: 5px;
            background-color: white;
            border-radius: 5px;
        }

        .date-filter {
            background-color: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            border: 1px solid #dee2e6;
        }

        .date-filter label {
            font-weight: bold;
            margin-bottom: 5px;
            display: block;
            color: #495057;
        }

        .date-filter input {
            width: 100%;
            padding: 8px;
            margin-bottom: 10px;
            border: 1px solid #ced4da;
            border-radius: 4px;
        }

        .date-filter button {
            margin: 5px 2px;
            padding: 6px 12px;
            font-size: 12px;
        }

        .editing {
            position: sticky;
            top: 0;
            background-color: white;
            padding: 15px;
            border-radius: 10px;
            border: 1px solid #dee2e6;
        }

        .editing textarea {
            width: 100%;
            margin-bottom: 10px;
        }

        .editing input[type="text"] {
            width: 70%;
            padding: 8px;
            border: 1px solid #ced4da;
            border-radius: 4px;
            margin-right: 5px;
        }

        .editing button {
            padding: 8px 16px;
            margin: 2px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }

        .editing .btn-primary {
            background-color: #007bff;
            color: white;
        }

        .editing .btn-success {
            background-color: #28a745;
            color: white;
        }

        .editing .btn-secondary {
            background-color: #6c757d;
            color: white;
        }

        .content {
            min-height: 800px;
            padding: 10px;
            margin: 5px;
            background-color: white;
            border-radius: 5px;
            overflow-y: auto;
        }

        .right_bar {
            padding: 10px;
            margin: 5px;
            background-color: white;
            border-radius: 5px;
            border: 1px solid #ddd;
        }

        .right_bar #search {
            background-color: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid #dee2e6;
        }

        .right_bar #search div {
            font-weight: bold;
            margin-bottom: 10px;
            color: #495057;
        }

        .right_bar #search input {
            width: 70%;
            padding: 6px;
            border: 1px solid #ced4da;
            border-radius: 4px;
            margin-right: 5px;
        }

        .right_bar #search input[type="submit"] {
            width: 25%;
            background-color: #007bff;
            color: white;
            border: none;
            cursor: pointer;
        }

        #divs {
            position: sticky;
            top: 0;
        }

        #lname {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 5px;
            margin-bottom: 15px;
        }

        #lname button {
            padding: 8px 4px;
            font-size: 12px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            background-color: #28a745;
            color: white;
        }

        #lname button:hover {
            background-color: #218838;
        }

        #divscon {
            min-height: 400px;
            background-color: #f8f9fa;
            border-radius: 5px;
            padding: 15px;
            border: 1px solid #dee2e6;
            overflow-y: auto;
        }

        #divscon ol {
            padding-left: 20px;
        }

        #divscon li {
            cursor: pointer;
            padding: 5px;
            margin-bottom: 5px;
            border-radius: 4px;
            transition: background-color 0.2s;
        }

        #divscon li:hover {
            background-color: #e9ecef;
        }

        .card {
            margin: 10px 0;
            border: 1px solid #dee2e6;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .card-header {
            background-color: #f8f9fa;
            border-bottom: 1px solid #dee2e6;
            padding: 10px 15px;
            font-weight: bold;
        }

        .card-body {
            padding: 15px;
            line-height: 1.6;
        }

        .card-footer {
            background-color: #f8f9fa;
            border-top: 1px solid #dee2e6;
            padding: 10px 15px;
        }

        .alert {
            margin: 10px 0;
            border-radius: 8px;
        }

        .footer {
            text-align: center;
            padding: 20px;
            background-color: #f8f9fa;
            border-top: 1px solid #dee2e6;
            margin-top: 20px;
        }

        ul.a {
            list-style-type: none;
            padding: 0;
        }

        ul.a li {
            margin-bottom: 10px;
        }

        /* 반응형 디자인 */
        @media (max-width: 768px) {
            .main {
                grid-template-columns: 1fr;
                grid-template-rows: auto auto auto;
            }
            
            .header {
                grid-template-columns: 1fr;
                text-align: center;
                height: auto;
                padding: 15px;
            }
            
            #lname {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* 로딩 스피너 */
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid #f3f3f3;
            border-top: 3px solid #3498db;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* 에러 스타일 */
        .error-message {
            color: #dc3545;
            font-size: 14px;
            margin-top: 5px;
        }

        .is-invalid {
            border-color: #dc3545;
        }