:root{
  --bg:#0c0f13; --panel:#141920; --panel2:#1b222b; --line:#28323e;
  --fg:#e9eef4; --dim:#93a2b3; --accent:#7dd3fc; --ok:#4ade80;
  --warn:#fbbf24; --err:#f87171; --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{background:var(--bg);color:var(--fg);line-height:1.6;
  font-family:"Apple SD Gothic Neo","Noto Sans KR",system-ui,-apple-system,sans-serif}
a{color:var(--accent);text-decoration:none}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.dim{color:var(--dim)} .small{font-size:13px}

header{border-bottom:1px solid var(--line);padding:14px 20px;display:flex;
  align-items:center;gap:14px;flex-wrap:wrap;background:#0e131a;position:sticky;top:0;z-index:20}
header h1{font-size:19px;margin:0;letter-spacing:-.4px}
header .tag{font-size:12.5px;color:var(--dim)}
.spacer{flex:1}

.wrap{display:grid;grid-template-columns:minmax(300px,420px) 1fr;gap:16px;padding:16px 20px 60px;align-items:start}
@media(max-width:900px){.wrap{grid-template-columns:1fr}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:14px}
.card h2{font-size:14.5px;margin:0 0 10px;letter-spacing:-.2px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.grow{flex:1;min-width:0}

button,.btn{background:var(--panel2);color:var(--fg);border:1px solid var(--line);border-radius:9px;
  padding:9px 13px;font-size:14px;cursor:pointer;font-family:inherit;transition:.14s;
  display:inline-flex;align-items:center;gap:6px}
button:hover:not(:disabled){background:#232d39;border-color:#3b4a5c}
button:disabled{opacity:.45;cursor:not-allowed}
button.on{background:var(--accent);color:#06212e;border-color:var(--accent);font-weight:700}
button.big{width:100%;justify-content:center;padding:13px;font-size:15.5px;font-weight:700}
select,input[type=text]{background:#0b1017;border:1px solid var(--line);border-radius:9px;
  color:var(--fg);padding:9px 11px;font-size:14px;font-family:inherit;width:100%}

.pill{display:inline-flex;align-items:center;gap:6px;background:var(--panel2);border:1px solid var(--line);
  border-radius:999px;padding:4px 11px;font-size:12.5px;color:var(--dim)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--dim);flex:none}
.dot.ok{background:var(--ok);box-shadow:0 0 7px var(--ok)}
.dot.load{background:var(--warn);animation:bl 1.1s infinite}
.dot.err{background:var(--err)}
@keyframes bl{0%,100%{opacity:1}50%{opacity:.25}}

.preview{background:#fff;border-radius:9px;overflow:auto;max-height:460px;border:1px solid var(--line)}
.preview canvas,.preview img{width:100%;display:block}

.bar{height:5px;background:#0b1017;border-radius:99px;overflow:hidden;margin-top:9px}
.bar i{display:block;height:100%;background:var(--accent);width:0;transition:width .2s}

.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
pre.code{background:#0a0e14;border:1px solid var(--line);border-radius:9px;padding:13px;
  overflow:auto;max-height:560px;font-size:12.5px;line-height:1.65;margin:0;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre}

table.reg{width:100%;border-collapse:collapse;font-size:13px}
table.reg th,table.reg td{border:1px solid var(--line);padding:6px 9px;text-align:left;vertical-align:top}
table.reg th{background:var(--panel2);font-size:12.5px;color:var(--dim);font-weight:600}
table.reg td.m{font-family:ui-monospace,Menlo,monospace}
.bits{display:flex;gap:2px;margin-top:5px;flex-wrap:wrap}
.bits span{font-size:10.5px;padding:2px 5px;border-radius:4px;background:#0b1017;border:1px solid var(--line);color:var(--dim)}
.bits span.f{background:#0f2a3a;border-color:#1d4a63;color:var(--accent)}

.issue{display:flex;gap:9px;padding:9px 11px;border-radius:9px;border:1px solid var(--line);
  background:var(--panel2);margin-bottom:7px;font-size:13.5px}
.issue.error{border-color:#5d2b2b;background:#2a1616}
.issue.warn{border-color:#5d4a1d;background:#241d10}
.issue.info{opacity:.75}
.issue b{flex:none}
.issue .hint{color:var(--dim);font-size:12.5px;display:block;margin-top:3px}

.stat{display:inline-flex;flex-direction:column;background:var(--panel2);border:1px solid var(--line);
  border-radius:9px;padding:8px 13px;min-width:84px}
.stat b{font-size:19px}
.stat.err b{color:var(--err)} .stat.warn b{color:var(--warn)} .stat.ok b{color:var(--ok)}

footer{color:var(--dim);font-size:12.5px;text-align:center;padding:24px;border-top:1px solid var(--line)}
.note{font-size:12.5px;color:var(--dim);line-height:1.7;margin-top:9px}
.badge{display:inline-block;background:#0f2a3a;border:1px solid #1d4a63;color:var(--accent);
  border-radius:6px;padding:2px 8px;font-size:11.5px;margin-left:6px}