body{
    font-family:'Caveat',cursive;
    background:#f8f9fa;
    margin:0;
    padding:0;
    color:#333
}
.container{
    max-width:700px;
    width:90%;
    margin:30px auto
}
.container.narrow{
    max-width:500px
}
.app-title{
    text-align:center;
    font-size:32px;
    margin-bottom:10px
}
.muted{
    text-align:center;
    color:#888;
    margin-bottom:25px
}
.card{
    background:#fff;
    border-radius:12px;
    box-shadow:0 2px 8px rgba(0,0,0,.1);
    padding:20px;
    margin-bottom:20px;
    text-align:center
}
.card-body{
    margin:0 auto
}
.actions{
    margin-top:20px;
    text-align:center
}
.actions .btn{
    margin:5px
}
.btn{
    padding:10px 20px;
    border:none;
    border-radius:8px;
    cursor:pointer;
    text-decoration:none;
    font-size:16px;
    transition:.2s;
    background:#eee;
    color:#333;
    display:inline-block
}
.btn:hover{
    background:#ddd
}
.btn-primary{
    background:#007bff;
    color:#fff
}
.btn-primary:hover{
    background:#0069d9
}
.btn.disabled,.btn
    [    
        aria-disabled="true" 
    ]
     {
        opacity:.6;
        pointer-events:none
     }
.name-preview{
    font-size:18px;
    margin-bottom:15px
}
.footer{
    text-align:center;
    color:#999;
    font-size:14px;
    margin-top:20px
}
.exam-header{
    margin-bottom:15px;
    text-align:center
}
.student{
    margin-bottom:10px;
    font-weight:bold
}
.timer-wrap{
    height:12px;
    background:#e9ecef;
    border-radius:6px;
    overflow:hidden;
    margin:10px auto;
    width:80%
}
.timer-bar{
    height:100%;
    width:100%;
    background:#28a745;
    transition:width 1s linear
}
.timer-text{
    font-size:14px;
    margin-top:5px
}
.question-text{
    text-align:center;
    margin-bottom:10px
}
.image-wrap{
    margin:10px 0;
    text-align:center
}
.image-wrap img{
    max-width:200px;
    border-radius:8px;
    box-shadow:0 1px 5px rgba(0,0,0,.2)
}
.answers{
    list-style:none;
    padding:0;
    margin:0
}
.answers li{
    background:#f1f1f1;
    margin:8px auto;
    padding:10px 15px;
    border-radius:8px;
    cursor:pointer;
    text-align:center;
    width:80%
}
.answers li:hover{
    background:#e2e2e2
}
.answers li.selected{
    background:#ccc
}
.hidden{
    display:none
}