*{box-sizing:border-box}
body{margin:0;font-family:"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;background:#f5f8fc;color:#1f2a37;line-height:1.65}
.top{display:flex;align-items:baseline;gap:12px;padding:14px 20px;background:#fff;border-bottom:1px solid #e3e8ef;flex-wrap:wrap}
.brand{font-size:22px;font-weight:800;color:#2563eb;text-decoration:none}
.tag{color:#6b7280;font-size:14px}
main{max-width:860px;margin:0 auto;padding:20px 16px 40px}
h1{font-size:25px;margin:8px 0 6px;line-height:1.35}h2{font-size:19px;margin:24px 0 8px}
.lead{font-size:17px;color:#374151}
.crumb{font-size:14px;color:#6b7280;margin-bottom:10px}.crumb a{color:#2563eb;text-decoration:none}
.hero{background:linear-gradient(135deg,#e8f0ff,#f3f8ff);border:1px solid #d6e4ff;border-radius:18px;padding:22px 22px 18px;margin-bottom:16px}
.card{background:#fff;border:1px solid #e3e8ef;border-radius:14px;padding:16px 18px;margin:12px 0}
.card h3{margin:0 0 6px;font-size:17px;color:#1d4ed8}
.row{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
.chip{padding:8px 14px;border:1px solid #cdd7e5;border-radius:999px;background:#fff;font-size:15px;cursor:pointer}
.chip.on{background:#2563eb;color:#fff;border-color:#2563eb}
.drop{display:block;border:2px dashed #9db8ea;border-radius:14px;background:#fff;padding:22px;text-align:center;cursor:pointer;color:#475569}
.drop:hover{background:#f3f8ff}
.thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.thumbs div{position:relative;width:92px;height:92px;border-radius:10px;overflow:hidden;border:1px solid #d6dde8;background:#f3f4f6;font-size:11px;display:flex;align-items:center;justify-content:center;text-align:center}
.thumbs img{width:100%;height:100%;object-fit:cover}
.thumbs button{position:absolute;top:2px;right:2px;border:0;background:#000a;color:#fff;border-radius:50%;width:22px;height:22px;cursor:pointer}
textarea,input[type=text]{width:100%;border:1px solid #cdd7e5;border-radius:10px;padding:10px;font:inherit;background:#fff}
textarea{min-height:110px}
details{margin:10px 0}summary{cursor:pointer;color:#2563eb}
.btn{display:inline-block;text-align:center;padding:12px 20px;background:#fff;border:1px solid #cdd7e5;border-radius:12px;color:#1f2a37;text-decoration:none;font-weight:600;cursor:pointer;font-size:16px}
.btn:hover{border-color:#2563eb;background:#eff5ff}
.btn.primary{background:#2563eb;color:#fff;border-color:#2563eb;font-size:18px;padding:14px 26px}
.btn.primary:hover{background:#1d4ed8}.btn.primary[disabled]{background:#9db8ea;border-color:#9db8ea;cursor:default}
.btn.small{padding:6px 12px;font-size:13px}
.note{font-size:13px;color:#6b7280}
.err{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;border-radius:10px;padding:10px 12px;margin:10px 0}
.warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:10px;padding:10px 12px;margin:10px 0;font-size:14px}
.steps{list-style:none;padding:0;margin:14px 0}
.steps li{padding:8px 12px;margin:6px 0;background:#fff;border:1px solid #e3e8ef;border-radius:10px;display:flex;gap:10px;align-items:center}
.steps li.done{background:#f0fdf4;border-color:#bbf7d0}.steps li.run{background:#eff6ff;border-color:#bfdbfe}.steps li.fail{background:#fef2f2;border-color:#fecaca}
.spin{width:16px;height:16px;border:3px solid #bfdbfe;border-top-color:#2563eb;border-radius:50%;animation:sp 1s linear infinite;display:inline-block}
@keyframes sp{to{transform:rotate(360deg)}}
.bar{height:10px;background:#e5eaf3;border-radius:6px;overflow:hidden;margin:6px 0}.bar i{display:block;height:100%;background:#2563eb;transition:width .4s}
.tipbox{background:#fff7e6;border:1px solid #fde4a8;border-radius:12px;padding:12px 14px;margin:14px 0;min-height:70px}
.subj{display:block;text-decoration:none;color:inherit}
.subj .card:hover{border-color:#2563eb}
.badge{display:inline-block;font-size:12px;border-radius:6px;padding:1px 7px;margin-right:6px;color:#fff;background:#6b7280}
.badge.pre{background:#2563eb}.badge.rev{background:#059669}
.passage{white-space:pre-wrap;background:#fffdf5;border-left:4px solid #f5c542;padding:12px 16px;border-radius:8px}
table{border-collapse:collapse;width:100%;margin-top:8px}th,td{border:1px solid #d6dde8;padding:7px 10px;text-align:left}th{background:#eef2f9}
.tip{margin-top:8px;color:#065f46;background:#ecfdf5;padding:8px 10px;border-radius:8px}
.q{background:#fff;border:1px solid #e3e8ef;border-radius:14px;padding:14px 18px;margin:12px 0}
.q .lv{font-size:12px;color:#fff;background:#6b7280;border-radius:6px;padding:1px 7px;margin-right:6px}
.opt{display:block;width:100%;text-align:left;margin:6px 0;padding:10px 12px;border:1px solid #d6dde8;border-radius:10px;background:#fff;font-size:15px;cursor:pointer;font-family:inherit}
.opt:hover{background:#f3f7ff}.opt.ok{background:#dcfce7;border-color:#16a34a}.opt.no{background:#fee2e2;border-color:#dc2626}
.exp{margin-top:8px;padding:8px 10px;background:#f3f4f6;border-radius:8px;font-size:14px;display:none}
.report{margin-top:8px;font-size:12px}
.report a,.report button{color:#9ca3af;background:none;border:0;cursor:pointer;text-decoration:underline;font-size:12px}
.score{position:sticky;bottom:0;background:#fff;border-top:1px solid #e3e8ef;padding:10px 16px;font-weight:700;text-align:center}
.tools{display:flex;gap:8px;margin:10px 0;flex-wrap:wrap}
.foot{max-width:860px;margin:0 auto;padding:16px;font-size:13px;color:#6b7280;border-top:1px solid #e3e8ef}
.done{color:#16a34a;font-size:12px;font-weight:700}
.rep{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.rep div{background:#f3f7ff;border-radius:10px;padding:8px 10px;font-size:14px}
@media print{.top,.foot,.tools,.score,.crumb,.report,.nop{display:none!important}.opt{border:1px solid #999}.exp{display:block!important}body{background:#fff}.q,.card{break-inside:avoid}}
body.noans .exp{display:none!important}