:root{
--primary:#2563eb;
--bg:#f8fafc;
--text:#1e293b;
--danger:#ef4444;
--success:#22c55e
}

body{
font-family:'Malgun Gothic',sans-serif;
background-color:var(--bg);
color:var(--text);
line-height:1.6;
margin:0;
padding:20px
}

.container{
max-width:1200px;
margin:0 auto;
background:#fff;
padding:30px;
border-radius:12px;
box-shadow:0 4px 6px rgba(0,0,0,.1)
}

header{
text-align:center;
border-bottom:2px solid var(--primary);
margin-bottom:30px;
padding-bottom:20px
}

/* 문제 자동 그리드 */

#quiz-content{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
gap:20px
}

/* 문제 카드 */

.q-card{
padding:18px;
border:1px solid #e2e8f0;
border-radius:10px;
background:#fff
}

.q-title{
font-weight:700;
font-size:1.05em;
margin-bottom:15px
}

/* 보기 */

.options{
display:grid;
gap:8px
}

.options label{
display:flex;
align-items:center;
gap:10px;
padding:8px 4px;
cursor:pointer
}

.options input{
cursor:pointer
}

.option-mark{
display:inline-block;
width:40px;
height:40px;
object-fit:contain;
vertical-align:middle;
margin-left:8px
}

.option-mark-q5-31{
width:64px;
height:64px
}

.wrong-choice .option-mark{
width:28px;
height:28px;
margin-left:6px
}

.wrong-choice .option-mark-q5-31{
width:36px;
height:36px
}

.q-card.answered{
border-color:#94a3b8;
background:#f8fafc;
}

.q-card.selected{
border-color:var(--primary);
border-width:2px;
background:#eff6ff
}
/* 정답 결과 */

.q-card.wrong{
border-color:var(--danger);
background:#fef2f2
}

.q-card.correct-pick{
border-color:var(--success);
background:#f0fdf4
}

.ans-feedback{
display:none;
margin-top:10px;
padding:8px;
border-radius:6px;
font-weight:700
}

.wrong .ans-feedback{
display:block;
color:var(--danger);
background:#fee2e2
}

.correct-pick .ans-feedback{
display:block;
color:var(--success);
background:#dcfce7
}

/* 하단 컨트롤 */

.controls{
position:sticky;
bottom:0;
background:#fff;
padding:20px;
border-top:2px solid #e2e8f0;
text-align:center
}

button{
background:var(--primary);
color:#fff;
border:none;
padding:12px 25px;
font-size:1em;
border-radius:8px;
cursor:pointer;
margin:5px
}

button:hover{
opacity:.9
}

.score-display{
font-size:1.5em;
font-weight:700;
margin-bottom:15px
}

/* 오답노트 */

#review-note{
display:none;
margin-top:30px;
padding:20px;
background:#1e293b;
color:#fff;
border-radius:12px
}

#review-note h2{
color:#facc15;
margin-top:0
}

.wrong-item{
margin-bottom:14px;
padding:12px;
border:1px solid #334155;
border-radius:8px;
background:#0f172a
}

.wrong-q-title{
font-weight:700;
margin-bottom:6px;
color:#facc15
}

.wrong-q-text{
margin-bottom:8px;
color:#e2e8f0
}

.wrong-choice{
margin-bottom:6px;
font-size:.95em
}

.wrong-choice-user{
color:#fca5a5
}

.wrong-choice-correct{
color:#86efac
}

.focus-wrong-btn{
background:#334155;
padding:8px 12px;
font-size:.9em;
border-radius:6px
}

.focus-wrong-btn:hover{
background:#475569
}

.wrong-empty{
padding:12px;
border-radius:8px;
background:#0f172a;
color:#86efac;
font-weight:700
}

.q-card.focus-highlight{
box-shadow:0 0 0 3px rgba(37,99,235,.35)
}