body {
    font-family: Arial;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    background: linear-gradient(135deg, #f8f1ce, #b88846);
    background: linear-gradient(135deg, #f9af70, #fff, #6acc9b);
    height: 100vh;
    /* padding: 20px 0; */
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    margin: 0 auto;
    color: #333;
}

.main-title {
    font-size: 45px;
}


/* Start Screen */

.start-screen {
    text-align: center;
    background: white;
    padding: 40px;
    border-radius: 12px;
    width: 420px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.start-screen h1 {
    margin-bottom: 10px;
}

.start-screen button {
    margin-top: 20px;
    padding: 12px 30px;
    font-size: 16px;
    border: none;
    background: #3498db;
    background: #e62424;
    color: white;
    border-radius: 6px;
    cursor: pointer;
}

.start-screen button:hover {
    background: #2980b9;

}

/* Quiz Container */

.quiz-container {
    display: none;
    background: white;
    width: 500px;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.answers button {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border: none;
    border-radius: 6px;
    background: #f1f1f1;
    cursor: pointer;
    transition: 0.3s;
}

.answers button:hover {
    background: #ddd;
}

.correct {
    background: #2ecc71 !important;
    color: white;
}

.wrong {
    background: #e74c3c !important;
    color: white;
}

.progress-container {
    width: 100%;
    height: 12px;
    background: #eee;
    border-radius: 10px;
    margin: 20px 0;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: #3498db;
    transition: 0.4s;
}

#score {
    font-size: 18px;
    font-weight: bold;
    margin-top: 20px;
}

@media (max-width: 767px) {
    .start-screen {
        width: 85%;
    }
}