:root{
  --bg:#f5f6f8;--card:#fff;--fg:#1d2330;--muted:#6b7385;--line:#e3e6ec;
  --pri:#3b5bdb;--pri-fg:#fff;--ok:#2b8a3e;--warn:#e67700;--err:#c92a2a;--info:#1971c2;
  --hl:#edf2ff;--rec:#e03131;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#12151b;--card:#1b2029;--fg:#e6e9ef;--muted:#8d95a7;--line:#2b3240;
  --pri:#5c7cfa;--hl:#1f2a44;
}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif}
a{color:var(--pri);text-decoration:none}
h1{font-size:22px;margin:4px 0 16px}h2{font-size:17px;margin:0 0 12px}
.top{display:flex;align-items:center;gap:18px;padding:10px 20px;background:var(--card);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-weight:700;color:var(--fg)}
.top nav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
.top nav a{padding:6px 10px;border-radius:6px;color:var(--muted)}
.top nav a.on,.top nav a:hover{background:var(--hl);color:var(--fg)}
.logout{display:flex;align-items:center;gap:8px}.who{color:var(--muted);font-size:13px}
.wrap{max-width:1180px;margin:0 auto;padding:20px 16px 60px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:16px}
.card.hl{background:var(--hl)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:800px){.grid3{grid-template-columns:1fr}}
.stat .label{color:var(--muted);font-size:13px}.stat .value{font-size:24px;font-weight:700;margin:4px 0}.stat .sub{color:var(--muted);font-size:12px}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px}.dot.ok{background:var(--ok)}.dot.err{background:var(--err)}
table{width:100%;border-collapse:collapse}
th,td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:12px;color:var(--muted);font-weight:600}
tr.hl td{background:var(--hl)}tr.dim td{opacity:.5}
td audio{height:32px;max-width:240px}
.right{text-align:right}.nowrap{white-space:nowrap}.ellipsis{max-width:380px}
.muted{color:var(--muted)}.sm{font-size:12px}.err{color:var(--err)}
.hidden{display:none!important}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row.end{justify-content:flex-end}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
form.inline{display:inline-flex;gap:6px;align-items:center;flex-wrap:wrap}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .span2{grid-column:1/-1}
@media(max-width:700px){.form-grid{grid-template-columns:1fr}}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
input,select,textarea{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:7px 9px}
textarea{resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid var(--pri);outline-offset:-1px}
input.full{width:100%}.w80{width:80px}.w120{width:120px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:7px 14px;border-radius:6px;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer;font:inherit;font-size:14px}
.btn:hover{border-color:var(--pri)}.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.primary{background:var(--pri);border-color:var(--pri);color:var(--pri-fg)}
.btn.danger{color:var(--err);border-color:color-mix(in srgb,var(--err) 40%,var(--line))}
.btn.ghost{background:transparent}.btn.sm{padding:4px 9px;font-size:12px}
.btn.record{background:var(--rec);border-color:var(--rec);color:#fff;min-width:110px}
.btn.record.on{animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.6}}
.badge{display:inline-block;padding:1px 8px;border-radius:99px;font-size:12px;border:1px solid currentColor}
.badge.ok{color:var(--ok)}.badge.warn{color:var(--warn)}.badge.err{color:var(--err)}.badge.info{color:var(--info)}.badge.muted{color:var(--muted)}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;border:1px solid var(--line);background:var(--card)}
.flash.ok{border-color:var(--ok)}.flash.err{border-color:var(--err);color:var(--err)}.flash.warn{border-color:var(--warn)}
.login{max-width:380px;margin:80px auto}.login form{display:flex;flex-direction:column;gap:12px}
.tips{font-size:13px}.tips .muted{display:block;margin-top:4px}
.recorder .prompt{font-size:26px;font-weight:600;line-height:1.5;text-align:center;padding:30px 10px;min-height:140px;display:flex;align-items:center;justify-content:center}
.recorder .controls{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:12px 0}
.progress{height:6px;background:var(--line);border-radius:4px;overflow:hidden;margin-bottom:6px}.progress .bar{height:100%;background:var(--ok);width:0}
.meter{height:10px;background:var(--line);border-radius:5px;overflow:hidden;max-width:520px;margin:0 auto}
.meter div{height:100%;width:0;background:var(--ok);transition:width .05s}
.meter div.hot{background:var(--err)}
.timer{text-align:center;font-variant-numeric:tabular-nums;color:var(--muted);margin-top:6px}
#recStatus{text-align:center;min-height:20px}
.tabs{display:flex;gap:4px;flex-wrap:wrap}.tabs a{padding:5px 10px;border-radius:6px;color:var(--muted)}.tabs a.on{background:var(--hl);color:var(--fg)}
.keybox{display:block;padding:10px;background:var(--bg);border:1px dashed var(--line);border-radius:6px;word-break:break-all;margin:8px 0;font-size:15px}
pre.code{background:var(--bg);padding:12px;border-radius:6px;overflow:auto;font-size:12px}
details summary{cursor:pointer;color:var(--muted);margin:6px 0}
.danger-zone{border-color:color-mix(in srgb,var(--err) 40%,var(--line))}
.otp-setup{max-width:720px;margin:30px auto}
.steps{padding-left:20px;line-height:1.9}
.qr-wrap{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin:16px 0}
.qr-wrap canvas{border-radius:8px;border:1px solid var(--line);width:232px;height:232px;image-rendering:pixelated}
.qr-wrap>div{flex:1;min-width:220px}
.otp-input{font-size:22px;letter-spacing:6px;text-align:center;width:180px;font-variant-numeric:tabular-nums}
.otp-form{margin:10px 0}