* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        :root {
            --primary-color: #4361ee;
            --secondary-color: #3f37c9;
            --accent-color: #4895ef;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --success-color: #4cc9f0;
            --warning-color: #f72585;
            --sidebar-width: 250px;
            --header-height: 60px;
        }

        body {
            background-color: #f5f7fb;
            color: #333;
            display: flex;
            min-height: 100vh;
        }

        /* Sidebar Styles */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--primary-color);
            color: white;
            height: 100vh;
            position: fixed;
            overflow-y: auto;
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .sidebar-header {
            padding: 20px;
            background: var(--secondary-color);
            text-align: center;
        }

        .sidebar-header h3 {
            margin-bottom: 5px;
            font-weight: 600;
        }

        .sidebar-header p {
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .sidebar-menu {
            padding: 10px 0;
        }

        .sidebar-menu ul {
            list-style: none;
        }

        .sidebar-menu li {
            padding: 0;
            margin: 5px 0;
        }

        .sidebar-menu a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            padding: 12px 20px;
            transition: all 0.3s;
        }

        .sidebar-menu a:hover {
            background: var(--secondary-color);
            border-left: 4px solid var(--accent-color);
        }

        .sidebar-menu i {
            margin-right: 10px;
            font-size: 1.1rem;
        }

        /* Main Content */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            padding: 20px;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 20px;
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            border-radius: 8px;
            margin-bottom: 20px;
        }

        .header h1 {
            font-size: 1.5rem;
            color: var(--primary-color);
        }

        .user-info {
            display: flex;
            align-items: center;
        }

        .user-info img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            margin-right: 10px;
            object-fit: cover;
        }

        /* Form Container */
        .form-container {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 20px;
            margin-bottom: 20px;
        }

        .form-section {
            margin-bottom: 25px;
        }

        .form-section h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }

        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #555;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 2px rgba(72, 149, 239, 0.2);
        }

        .name-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 15px;
        }

        .button-group {
            display: flex;
            justify-content: flex-end;
            gap: 15px;
            margin-top: 20px;
        }

        .btn {
            padding: 10px 20px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s;
        }

        .btn-primary {
            background: var(--primary-color);
            color: white;
        }

        .btn-primary:hover {
            background: var(--secondary-color);
        }

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

        .btn-secondary:hover {
            background: #5a6268;
        }

        /* Responsive Design */
        @media (max-width: 992px) {
            .sidebar {
                width: 70px;
                overflow: visible;
            }

            .sidebar-header h3, 
            .sidebar-header p,
            .sidebar-menu span {
                display: none;
            }

            .sidebar-menu i {
                margin-right: 0;
                font-size: 1.3rem;
            }

            .sidebar-menu a {
                justify-content: center;
                padding: 15px;
            }

            .main-content {
                margin-left: 70px;
            }
        }

        @media (max-width: 768px) {
            .form-grid {
                grid-template-columns: 1fr;
            }

            .name-grid {
                grid-template-columns: 1fr;
            }
        }