.hero{
    background:linear-gradient(135deg,#4e54c8,#8f94fb);
    color:white;
    padding:70px 20px;
    border-radius:0 0 30px 30px;
}

.hero h1{
    font-size:3rem;
    font-weight:800;
}

.section-title{
    color:#4e54c8;
    font-weight:700;
}

.riddle-card{
    border:none;
    border-radius:20px;
    transition:0.3s;
    overflow:hidden;
}

.riddle-card:hover{
    transform:translateY(-5px);
}

.question-btn{
    width:100%;
    text-align:left;
    border:none;
    background:#ffffff;
    padding:20px;
    font-size:1.1rem;
    font-weight:600;
}

.answer-box{
    display:none;
    background:#f8f9fa;
    padding:20px;
    border-top:1px solid #dee2e6;
}

.answer{
    color:#198754;
    font-size:1.2rem;
    font-weight:700;
}

.feature-box{
    background:white;
    border-radius:20px;
    padding:25px;
    box-shadow:0 4px 15px rgba(0,0,0,0.08);
    height:100%;
}



.main-card{
    border:none;
    border-radius:30px;
    overflow:hidden;
    box-shadow:0 8px 30px rgba(0,0,0,0.1);
}

.left-panel{
    background:white;
    min-height:85vh;
    padding:40px;
}

.right-panel{
    background:#f8f9ff;
    min-height:85vh;
    padding:25px;
    border-left:1px solid #dee2e6;
}

.riddle-badge{
    display:inline-block;
    background:#4e54c8;
    color:white;
    padding:10px 25px;
    border-radius:50px;
    font-weight:600;
    margin-bottom:25px;
}

.riddle-question{
    font-size:2.2rem;
    font-weight:800;
    color:#222;
    line-height:1.5;
    margin-top:30px;
    margin-bottom:50px;
}

.answer-box{
    display:none;
    background:#e8fff1;
    border:2px dashed #198754;
    border-radius:20px;
    padding:25px;
    margin-top:35px;
}

.answer-title{
    color:#198754;
    font-size:1rem;
    font-weight:700;
}

.answer-text{
    font-size:1.5rem;
    font-weight:700;
    color:#111;
    margin-top:10px;
}

.action-btn{
    border-radius:50px;
    padding:14px 28px;
    font-weight:700;
    border:none;
    transition:0.3s;
}

.action-btn:hover{
    transform:translateY(-2px);
}

.set-card{
    border:none;
    border-radius:20px;
    overflow:hidden;
    transition:0.3s;
}

.set-card:hover{
    transform:translateY(-4px);
}

.set-img{
    height:110px;
    object-fit:cover;
}

.progress-text{
    color:#6c757d;
    font-weight:600;
}

.next-btn{
    display:none;
}