body {
    font-family: Arial, sans-serif;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    color: white;
}

.quiz-container {
    background: #161616;
    width: 600px;
    max-width: 90%;
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.08);
    text-align: center;
    border: 1px solid #2f2f2f;
}

h1 {
    margin-bottom: 20px;
    color: white;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 25px;
    font-weight: bold;
    color: #dcdcdc;
}

#question {
    margin-bottom: 25px;
    font-size: 22px;
    line-height: 1.4;
    color: white;
    min-height: 60px;
}

.btn-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.btn {
    padding: 14px;
    border: 1px solid #4b4b4b;
    border-radius: 10px;
    background: #222;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
}

.btn:hover {
    background: #2f2f2f;
}

.btn:disabled {
    opacity: 0.85;
    cursor: not-allowed;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.controls button,
.final-btn {
    padding: 10px 18px;
    border: 1px solid #555;
    border-radius: 10px;
    background: #000;
    color: white;
    font-size: 15px;
    cursor: pointer;
    transition: 0.2s;
}

.controls button:hover,
.final-btn:hover {
    background: #222;
}

#hint-text {
    color: #cfcfcf;
    font-weight: bold;
    margin-top: 10px;
    min-height: 24px;
}

#result {
    font-size: 20px;
    font-weight: bold;
    margin-top: 10px;
    color: white;
    min-height: 28px;
}

.correct-answer {
    background: #1d4d1d !important;
    border-color: #2f7a2f !important;
}

.wrong-answer {
    background: #5a1f1f !important;
    border-color: #8a2d2d !important;
}