body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            background-color: #eef2f3;
        }

        .form-container {
            background-color: #ffffff;
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            transition: box-shadow 0.3s ease;
        }

        .form-container:hover {
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }

        h1 {
            color: #2c3e50;
            text-align: center;
            margin-bottom: 40px;
            font-weight: 700;
        }

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

        label {
            display: block;
            margin-bottom: 10px;
            color: #34495e;
            font-weight: 600;
        }

        input, select {
            width: 100%;
            padding: 12px;
            border: 1px solid #bdc3c7;
            border-radius: 6px;
            box-sizing: border-box;
            transition: border-color 0.3s ease;
        }

        input:focus, select:focus {
            border-color: #3498db;
            outline: none;
        }

        .contact-group, .address-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
        }

        .address-group.full {
            grid-template-columns: 1fr;
        }

        .tutor-group, .documents-group {
            padding: 25px;
            border: 1px solid #bdc3c7;
            border-radius: 6px;
            margin-bottom: 25px;
            background-color: #ecf0f1;
        }

        .radio-group {
            display: flex;
            gap: 25px;
        }

        .radio-group label {
            display: flex;
            align-items: center;
            font-weight: normal;
        }

        .radio-group input {
            width: auto;
            margin-right: 10px;
        }

        button {
            background-color: #3498db;
            color: white;
            padding: 15px 25px;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            width: 100%;
            font-size: 18px;
            transition: background-color 0.3s ease;
        }

        button:hover {
            background-color: #2980b9;
        }

        .error-message {
            color: #e74c3c;
            margin-top: 10px;
            font-size: 14px;
        }