body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f5f5f5;
}
#quiz-container {
    max-width: 800px;
    margin: 0 auto;
}
#timer {
    position: fixed;
    top: 10px;
    right: 10px;
    font-size: 18px;
    color: #d32f2f;
    display: block;
    z-index: 2;
}
#question-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    background: white;
    padding: 10px;
    border-radius: 5px;
    position: sticky;
    top: 0;
    z-index: 1;
}
.nav-btn {
    width: 30px;
    height: 30px;
    border: 2px solid #ccc;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    text-align: center;
    line-height: 26px;
}
.nav-btn.answered {
    background: #4CAF50;
    color: white;
}
.question {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}
.options label {
    display: block;
    margin: 10px 0;
}
.match-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
}
.match-table select {
    width: 100%;
    padding: 5px;
}
#submit-btn {
    padding: 10px 20px;
    background: #4285f4;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
#back-btn {
    padding: 10px 20px;
    background: #666;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 20px;
}
#results {
    display: none;
}
.result-item {
    margin: 20px 0;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
}
.incorrect {
    color: #d32f2f;
}
#quiz-title {
    display: block;
    position: relative;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}
#despcription{
    display: block;
    position: relative;
    font-size: 14px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}
@media (max-width: 600px) {
    body {
        margin: 5px;
    }
    #timer{
        width: 100%;
        text-align: right;
        top: 0px;
        background-color: #f5f5f5;
    }
    #quiz-container {
        width: 90%;
        padding: 5px;
    }
    #question-nav {
        top: 20px;
        gap: 2px;
    }
    .nav-btn {
        width: 30px;
        height: 30px;
        line-height: 40px;
        font: .7em sans-serif;
    }
    .question {
        padding: 8px;
        font: 1em sans-serif;
    }
    .options{
        font: .9em;
    }
    #quiz-title {
        font-size: .9em;
    }
    #despcription {
        font-size: .8em;
    }
    #submit-btn, #back-btn {
        width: 90%;
        padding: 15px;
        font-size: 12px;
    }
    .match-table {
        grid-template-columns: 1fr;
    }
    
}