html, body {
    height:100%;
    margin:0;
    padding:0;
}

body {
    background-image:url("heroback.jpg");
    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;
    display:flex;
    justify-content:center;
    align-items:center;
}

.quiz-container {
    transform:scake(0.8);
    background:rgb(60, 60, 249);
    border-radius:20px;
    padding:30px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    max-width:600px;
    width:90%;
    text-align:center;
}


.quiz-header {
    margin-bottom:30px;

}

.quiz-title {
    font-size:2.5rem;
    color:#333;
    margin-bottom:10px;
}


.question-counter {
    font-size:1.2rem;
    color:#666;
    margin-bottom:20px;
}

.progress-bar {
    width:100%;
    height:8px;
    background:#e0e0e0;
    border-radius:4px;
    overflow:hidden;
    margin-bottom:30px;
}

.progress-fill {
    height:100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition:width 0.3 ease;
}

.question {
    font-size:1.5rem;
    color:#333;
    margin-bottom:30px;
    line-height:1.6;
}


.answers {
    display:grid;
    gap:15px;
    margin-bottom:30px;
}

.answer-btn {
    padding:15px 20px;
    border: 2px solid #e0e0e0;
    border-radius:10px;
    background:white;
    font-size:1.1rem;
    cursor:pointer;
    transition: all 0.3s ease;
    text-align:left;
}

.answer-btn:hover {
    border-color: #667eea;
    background:#f8f9ff;
    transform:translateY(-2px);

}


.answer-btn.selected {
    border-color:#667eea;
    background:#667eea;
    color:white;
}


.next-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color:white;
    border:none;
    padding:15px 40px;
    border-radius:25px;
    font-size:1.2rem;
    cursor:pointer;
    transition: all 0.3s ease;
    opacity:0.5;
    pointer-events:none;
}

.score-display{
    font-size:1.2rem;
    color:#333;
    margin-top:10px;
    font-weight:bold;
}

.next-btn.active {
    opacity:1;
    pointer-events:auto;
}

.next-btn:hover.active {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(69,108,165,0.3);
}

@keyframes victoryReveal {
    0% {
        opacity:0;
        transform: scale(0.5) rotateY(180deg);
    }

    50% {
        opacity:1;
        transform:scale(1);
    }

    100% {
        opacity:1;
        transform:scale(1);
    }
}


@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform:translateY(50px);
    }

    100% {
        opacity:1;
        transform:translateY(0);
    }
}

.victory-glow {
    animation: victoryGlow 2s ease-in-out infinite alternate;
}

@keyframes victory-glow {
    0% {
        text-shadow: 0 0 20px #0ff000, 0 0 40px #0ff000, 0 0 60px #0ff000, 2px 2px 4px rgba(0,0,0,0.8);
    }

    100% {
        text-shadow: 0 0 30px #0ff000, 0 0 60px #0ff000, 0 0 90px #0ff000, 2px 2px 4px  rgba(0,0,0,0.8);
    }
}