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

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #141e30, #243b55);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 90%;
    max-width: 650px;
    background: white;
    padding: 35px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

h1 {
    font-size: 38px;
    margin-bottom: 10px;
}

p {
    font-size: 18px;
    margin-bottom: 25px;
}

button {
    border: none;
    border-radius: 10px;
    padding: 14px 25px;
    font-size: 16px;
    cursor: pointer;
}

#home-screen button,
#result-screen button,
#next-btn {
    background: #243b55;
    color: white;
}

#home-screen button:hover,
#result-screen button:hover,
#next-btn:hover {
    background: #141e30;
}

.hide {
    display: none;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-weight: bold;
}

.progress {
    width: 100%;
    height: 10px;
    background: #ddd;
    border-radius: 10px;
    margin-bottom: 25px;
}

#progress-bar {
    width: 0%;
    height: 100%;
    background: #243b55;
    border-radius: 10px;
    transition: 0.3s;
}

#question {
    margin-bottom: 20px;
}

#options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option {
    width: 100%;
    background: #f1f3f5;
    text-align: left;
    border: 2px solid transparent;
}

.option:hover {
    border-color: #243b55;
}

.option:disabled {
    cursor: not-allowed;
}

#next-btn {
    margin-top: 25px;
}

#final-score {
    font-size: 45px;
    font-weight: bold;
    margin: 20px;
}