* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #f5f8ff 0%, #e8f0ff 100%);
            color: #333;
        }
        
        /* Header */
        header {
            background: linear-gradient(135deg, #004aad 0%, #0066cc 100%);
            color: white;
            padding: 20px 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        header h1 {
            font-size: 1.5rem;
            font-weight: 700;
        }
        
        header p {
            font-size: 0.9rem;
            opacity: 0.9;
        }
        
        nav {
            display: flex;
            gap: 20px;
        }
        
        nav a, nav button {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 8px 15px;
            border-radius: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
            transition: 0.3s;
        }
        
        nav a:hover, nav button:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.05);
        }
        
        /* Login Page */
        .login-page {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 90vh;
        }
        
        .login-box {
            background: white;
            padding: 50px;
            border-radius: 15px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            max-width: 400px;
            width: 100%;
        }
        
        .login-box h2 {
            color: #004aad;
            margin-bottom: 10px;
            text-align: center;
            font-size: 1.8rem;
        }
        
        .login-box p {
            text-align: center;
            color: #666;
            margin-bottom: 30px;
            font-size: 0.9rem;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        label {
            display: block;
            font-weight: 600;
            margin-bottom: 8px;
            color: #004aad;
        }
        
        input, select, textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            font-family: 'Poppins', sans-serif;
            transition: 0.3s;
        }
        
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: #004aad;
            box-shadow: 0 0 10px rgba(0, 74, 173, 0.2);
        }
        
        button {
            width: 100%;
            padding: 12px;
            background: #004aad;
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.3s;
            margin-top: 15px;
        }
        
        button:hover {
            background: #00347a;
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0, 74, 173, 0.3);
        }
        
        /* Dashboard */
        .dashboard-page {
            display: none;
            padding: 40px 5%;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .dashboard-header {
            background: white;
            padding: 30px;
            border-radius: 12px;
            margin-bottom: 30px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }
        
        .dashboard-header h2 {
            color: #004aad;
            margin-bottom: 15px;
            font-size: 1.8rem;
        }
        
        .dashboard-header p {
            line-height: 1.6;
            color: #555;
            margin-bottom: 10px;
        }
        
        .seksi-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }
        
        .seksi-card {
            background: linear-gradient(135deg, #004aad 0%, #0066cc 100%);
            color: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 10px rgba(0, 74, 173, 0.2);
            transition: 0.3s;
        }
        
        .seksi-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 74, 173, 0.3);
        }
        
        .seksi-card h3 {
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        .seksi-card p {
            font-size: 0.9rem;
            opacity: 0.9;
            margin-bottom: 15px;
        }
        
        /* Form Page */
        .form-page {
            display: none;
            padding: 40px 5%;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .form-container {
            background: white;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }
        
        .form-container h2 {
            color: #004aad;
            margin-bottom: 30px;
            text-align: center;
            font-size: 1.6rem;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }
        
        .form-buttons {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }
        
        .btn-submit {
            background-color: #0056b3;
            color: white;
            padding: 10px 16px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            margin-right: 8px;
            transition: background-color 0.3s;
        }
        
        .btn-submit:hover {
            background-color: #004085;
        }
        
        .btn-submit:disabled {
            background-color: #ccc;
            cursor: not-allowed;
        }
        
        .btn-back {
            flex: 1;
            padding: 12px;
            background: #999;
            color: white;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.3s;
        }
        
        .btn-back:hover {
            background: #777;
        }
        
        .alert {
            padding: 15px;
            margin-bottom: 20px;
            border-radius: 8px;
            display: none;
        }
        
        .alert.success {
            background: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }
        
        .alert.error {
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }
        
        /* Graphic Page */
        .graphic-page {
            display: none;
            padding: 40px 5%;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .graphic-container {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            margin-bottom: 30px;
        }
        
        .graphic-container h3 {
            color: #004aad;
            margin-bottom: 20px;
            text-align: center;
            font-size: 1.4rem;
        }
        
        .filter-section {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        
        .filter-section select {
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            flex: 1;
            min-width: 150px;
        }
        
        #dataTable {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
            background-color: white;
        }
        
        #dataTable thead {
            background-color: #0056b3;
            color: white;
        }
        
        #dataTable th {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: left;
            font-weight: bold;
        }
        
        #dataTable td {
            border: 1px solid #ddd;
            padding: 10px;
        }
        
        #dataTable tbody tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        
        #dataTable tbody tr:hover {
            background-color: #f0f0f0;
        }
        
        #paginationControls {
            margin-top: 20px;
            text-align: center;
        }
        
        #paginationControls button {
            padding: 8px 12px;
            margin: 0 4px;
            background-color: #e0e0e0;
            border: 1px solid #999;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }
        
        #paginationControls button:hover {
            background-color: #0056b3;
            color: white;
        }
        
        #paginationControls button:disabled {
            background-color: #ccc;
            cursor: not-allowed;
            opacity: 0.5;
        }
        
        /* Footer */
        footer {
            background: #002a70;
            color: white;
            text-align: center;
            padding: 20px;
            margin-top: 50px;
        }
        
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                gap: 15px;
            }
        
            nav {
                flex-wrap: wrap;
                justify-content: center;
            }
        
            .login-box {
                padding: 30px 20px;
            }
        
            .seksi-list {
                grid-template-columns: 1fr;
            }
        
            .form-buttons {
                flex-direction: column;
            }
        }