* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    transition: 0.3s;
     background: linear-gradient(to right, #667eea, #764ba2);
}

.quiz-container {
    background: white;
    width: 100%;
    max-width: 420px;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    background-color: #7543a7;
    color: white;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#progressBar {
    height: 8px;
    background: #4caf50;
    width: 0%;
    border-radius: 5px;
    transition: width 0.3s;
    flex: 1;
    margin-right: 10px;
}

#toggleMode {
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
}


.options button {
    width: 100%;
    margin: 8px 0;
    padding: 10px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    font-size: medium;
}



.correct {
    background: #28a745 !important;
    color: white;
}

.wrong {
    background: #dc3545 !important;
    color: white;
}

#nextBtn {
    margin-top: 10px;
    padding: 8px;
    width: 100%;
    border-radius: 10px;
    background-color: #667eea;
}

.dark {
    background: #121212;
    color: white;
}

.dark .quiz-container {
    background-color:rgb(84, 80, 80);
    color:white;
}

@media (max-width: 480px) {
    .quiz-container {
        padding: 18px;
    }
}