:root {
    --purple-main: #6A0DAD;
    --purple-light: #B57EDC;
    --purple-dark: #3D0066;
    --bg-gradient: linear-gradient(135deg, #1a002b, #3d0066, #6a0dad);
    --glass: rgba(255, 255, 255, 0.08);
    --white-soft: rgba(255, 255, 255, 0.9);

    --ok: #7CFCB2;
    --not-ok: #FF6B81;
    --navigation: rgba(255, 255, 255, 0.15);
}

body {
    font-family: Poppins, sans-serif;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-weight: 600;
    margin: 0;
    padding: 0;

    background: var(--bg-gradient);

    color: var(--white-soft);
}


.quiz-container {
    background: var(--glass);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 0 30px rgba(180, 120, 255, 0.3);
    padding: 25px;
}


.question {
    font-size: 2.2rem;
    color: #ffffff;
    text-shadow: 0 0 10px rgba(200,150,255,0.6);
}


.quiz-container .answers {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}


.quiz-container .answers button {
    background: linear-gradient(145deg, #5a0ca3, #7a1edc);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.3rem;
    padding: 12px;
    transition: all 0.25s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}


.quiz-container .answers button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 15px rgba(180, 120, 255, 0.7);
}


.quiz-container .answers button.correct {
    background: linear-gradient(145deg, #4cffc3, #2ed573);
    color: #003d2b;
}

.quiz-container .answers button.incorrect {
    background: linear-gradient(145deg, #ff6b81, #ff3b5c);
    color: white;
}


.quiz-container .navigation {
    margin-top: 20px;
}


.quiz-container .navigation .nav-button {
    background: linear-gradient(135deg, #6a0dad, #b57edc);
    color: white;
    border-radius: 10px;
    border: none;
    padding: 10px 15px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: 0.2s;
    display: none;
}

.quiz-container .navigation .nav-button.visible {
    display: block;
}

.quiz-container .navigation .nav-button:hover {
    box-shadow: 0 0 15px rgba(200,150,255,0.8);
    transform: scale(1.05);
}

.info {
    margin-bottom: 9%;
}

.score,
.questions-counter .timer {
    color: #e6ccff;
    font-size: 1rem;
    opacity: 0.9;
}

.copyright {
    color: #e6ccff;
    font-size: 0.5rem;
    opacity: 0.9;
}


@media (max-width: 768px) {
    .question {
        font-size: 1.6rem;
    }

    .quiz-container .answers button {
        font-size: 1.1rem;
    }
}