body {
            font-family: 'Arial', sans-serif;
            background: linear-gradient(135deg, #f0f4f8, #e0e7f1);
            margin: 0;
            padding: 0;
            color: #333;
        }

        header {
            display: none;
            background-color: transparent;
            justify-content: space-between;
            color: white;
            padding: 5px 5px;
            text-align: center;
            font-size: 26px;
            font-weight: 600;
            position: relative;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }

        #choicesContainer {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 40px;
            padding: 0 20px;
        }

        #resultContainer {
            display: none;
            flex-direction: column;
            flex-wrap: wrap;
            padding: 10px;
            gap: 20px;
            justify-content: center;
            align-content: center;
        }

        form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 400px;
            margin: 0 auto;
            background-color: #fff;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            position: relative;
        }

        label {
            font-size: 18px;
            color: #333;
            cursor: pointer;
            transition: color 0.3s ease;
        }

        label:hover {
            color: #0078d4;
        }

        input[type="radio"] {
            margin-right: 12px;
        }

        button[type="submit"] {
            background-color: #0078d4;
            color: white;
            font-size: 18px;
            padding: 12px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        button[type="submit"]:hover {
            background-color: #005f98;
        }

        .category-button {
            padding: 12px 20px;
            background-color: #fff;
            border: 2px solid #ddd;
            border-radius: 8px;
            margin: 10px;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s ease, color 0.3s ease;
            text-align: center;
        }

        .category-button:hover {
            background-color: #f1f1f1;
        }

        .category-button.selected {
            background-color: #0078d4;
            color: white;
            border-color: #0078d4;
        }

        .title-tooltip {
            position: relative;
            display: inline-block;
        }

        .title-tooltip:hover {
            color: #0078d4;
            text-decoration: underline;
        }

        .video-card {
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
            padding: 20px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }

        .video-card:hover {
            transform: scale(1.05);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .video-title {
            font-size: 20px;
            font-weight: bold;
            color: #333;
            margin-bottom: 15px;
        }

        .video-description {
            font-size: 14px;
            color: #777;
            margin-bottom: 20px;
        }

        .video-link {
            display: inline-block;
            text-decoration: none;
            background-color: #007bff;
            color: white;
            padding: 12px 18px;
            border-radius: 5px;
            font-size: 16px;
            transition: background-color 0.3s ease;
        }

        .video-link:hover {
            background-color: #0056b3;
        }

        #backButton {
            font-size: 20px;
            color: white;
            background-color: #007bff;
            align-content: center;
            border: 1px solid #0056b3;
            border-radius: 20px;
            cursor: pointer;
            display: none;
        }

        #backButton:hover {
            color: #0056b3;
        }

        #homeButton {
            font-size: 12px;
            color: #007bff;
            background: none;
            align-content: center;
            text-decoration: underline;
            border: none;
            cursor: pointer;
            display: none;
        }

        #homeButton:hover {
            color: #0078d4;
        }


        .loader {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 20px;
            background-color: #0078d4;
            color: white;
            font-size: 18px;
            border-radius: 5px;
            width: 100%;
            box-sizing: border-box;
        }

        .spinner {
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-top: 3px solid #fff;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        .loader span {
            font-weight: 500;
        }

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

            100% {
                transform: rotate(360deg);
            }
        }

        @media (max-width: 768px) {
            #choicesContainer {
                flex-direction: column;
            }

            #resultContainer {
                color: black;
            }
        }