* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background-color: #3a4a5c;
            color: white;
            min-height: 100vh;
        }
        .ad-banner {
            background-color: #4a5a6c;
            text-align: center;
            width: 100%;
            max-width: 970px;
            padding: 8px;
            margin: 0px auto;
            /* padding: 12px; */
            padding: 12px;
            font-size: 16px;
            color: #e0e0e0;
            border-bottom: 1px solid #5a6a7c;
        }
        .container {
            max-width: 970px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        h3 {
    display: block;
    font-size: 1.17em;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
    unicode-bidi: isolate;
}

        .age-container {
            text-align: center;
            max-width: 970px;
            padding: 30px 20px;
            margin: 0px auto 4vh;
        }

        .quiz-section {
            background-color: #4a5a6c;
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 30px;
            border: 1px solid #5a6a7c;
        }

       .intro-section {
            background-color: #4a5a6c;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid #5a6a7c;
        }
        .quiz-title {
            font-size: 28px;
            font-weight: bold;
            margin-bottom: 20px;
            text-align: center;
        }
        .intro-title {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 20px;
        }
        .intro-subtitle {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #e0e0e0;
        }
        .intro-text {
            line-height: 1.6;
            color: #d0d0d0;
            font-size: 16px;
        }


         .completion-section {
            background-color: #4a5a6c;
            border-radius: 12px;
            padding: 40px;
            border: 1px solid #5a6a7c;
            text-align: center;
        }
        .success-message {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 30px;
            font-size: 20px;
            color: #28a745;
        }
        .checkmark {
            background-color: #28a745;
            color: white;
            border-radius: 3px;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 12px;
            font-size: 16px;
        }
        .completion-title {
            font-size: 32px;
            font-weight: bold;
            margin-bottom: 30px;
            color: #28a745;
        }
        .score-display {
            font-size: 24px;
            margin: 30px 0;
            padding: 20px;
            background-color: #5a6a7c;
            border-radius: 10px;
            border-left: 5px solid #28a745;
        }
        .message {
            font-size: 18px;
            color: #d0d0d0;
            margin: 30px 0;
            line-height: 1.6;
        }
        .get-link-btn {
            background-color: #28a745;
            color: white;
            padding: 15px 40px;
            border: none;
            border-radius: 8px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            margin: 20px 10px;
        }
        .get-link-btn:hover {
            background-color: #218838;
        }

        #tryAgainBtn:hover {
            background-color: #c82333 !important;
        }

        .restart-btn {
            background-color: #6c757d;
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            margin: 10px;
            text-decoration: none;
            display: inline-block;
        }
        .restart-btn:hover {
            background-color: #545b62;
        }
        .celebration {
            font-size: 48px;
            margin: 20px 0;
        }
        .question {
            font-size: 24px;
            font-weight: 600;
            text-align: center;
            margin-bottom: 30px;
            color: white;
        }
        .options-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-bottom: 30px;
        }
        .option {
            background-color: white;
            color: #333;
            padding: 15px 20px;
            border-radius: 25px;
            border: none;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            position: relative;
        }
        .option input[type="radio"] {
            margin-right: 10px;
            transform: scale(1.2);
        }
        .option:hover {
            background-color: #f0f0f0;
        }
        .option.correct {
            background-color: #28a745;
            color: white;
        }
        .option.incorrect {
            background-color: #dc3545;
            color: white;
        }
        .feedback {
            text-align: center;
            font-size: 20px;
            font-weight: 600;
            margin: 20px 0;
            display: none;
        }
        .feedback.correct {
            color: #28a745;
        }
        .feedback.incorrect {
            color: #dc3545;
        }
        .next-btn {
            background-color: #28a745;
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: none;
            margin: 0 auto;
        }
        .next-btn:hover {
            background-color: #218838;
        }
        .loader {
            border: 3px solid #f3f3f3;
            border-top: 3px solid #28a745;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            animation: spin 1s linear infinite;
            display: inline-block;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

                .start-btn {
            background-color: #28a745;
            color: white;
            padding: 15px 40px;
            border: none;
            border-radius: 8px;
            font-size: 18px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            display: block;
            margin: 30px auto 0;
        }
        .start-btn:hover {
            background-color: #218838;
        }
        footer {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(10px);
    padding: 40px 20px;
    text-align: center;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-nav {
    display: flex   ;
    justify-content: center;
    gap: 32px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.footer-nav a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}
.content-container {
    display: flex;
    flex-direction: column;
    max-width: 970px;
    padding: 20px;
    margin: 0 auto;
}
ul {
    display: block;
    list-style-type: disc;
    margin-block-start: 1em;
    margin-block-end: 1em;
    padding-inline-start: 40px;
    unicode-bidi: isolate;
}
li {
    display: list-item;
    text-align: -webkit-match-parent;
    unicode-bidi: isolate;
}