:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-soft: #1c232c;
  --border: #30363d;
  --text: #c9d1d9;
  --muted: #8b949e;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --blue: #58a6ff;
  --mono: ui-monospace, SF Mono, "Cascadia Code", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); font-size: 13px;
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.brand .dot.on { background: var(--green); }
.muted { color: var(--muted); }
.env { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.env label { color: var(--muted); font-size: 12px; }
.env input, .env select {
  background: var(--panel-soft); color: var(--text); border: 1px solid var(--border);
  padding: 4px 8px; border-radius: 4px; font-size: 12px; font-family: var(--mono);
}
.env button, .primary, .ghost {
  background: var(--blue); color: #fff; border: none; padding: 5px 12px;
  border-radius: 4px; cursor: pointer; font-weight: 600;
}
.ghost { background: var(--panel-soft); color: var(--muted); border: 1px solid var(--border); }
.primary { background: var(--green); width: 100%; padding: 8px; margin-top: 8px; }
.warn    { background: var(--yellow); color: #1a1a1a; width: 100%; padding: 6px; margin-top: 4px; border: none; border-radius: 4px; cursor: pointer; font-weight: 600; }
.tiers   { display: flex; gap: 4px; flex: 1; }
.tiers button { flex: 1; padding: 4px 0; background: var(--panel-soft); color: var(--muted); border: 1px solid var(--border); border-radius: 3px; cursor: pointer; font-size: 11px; }
.tiers button:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
#reset-result { font-family: var(--mono); font-size: 11px; padding: 4px 0; color: var(--muted); }
#sizing-hint-text { font-size: 10px; font-family: var(--mono); color: var(--muted); }
.dim { color: var(--muted); }

main {
  display: grid; grid-template-columns: 380px 340px 1fr; gap: 12px;
  padding: 12px; height: calc(100vh - 53px); overflow: hidden;
}
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow: auto;
}
.panel h3 { margin: 0 0 8px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.panel h3.mt { margin-top: 16px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.panel-head .meta { display: flex; gap: 10px; font-size: 11px; color: var(--muted); }
.panel-head .meta b { color: var(--text); font-family: var(--mono); }

.book table { width: 100%; border-collapse: collapse; font-family: var(--mono); }
.book th { color: var(--muted); font-weight: normal; font-size: 11px; text-align: right; padding: 2px 6px; }
.book td { text-align: right; padding: 1px 6px; font-size: 12px; }
.book td.price-ask { color: var(--red); }
.book td.price-bid { color: var(--green); }
.book td.size { color: var(--text); position: relative; }
.book td.size .bar {
  position: absolute; right: 0; top: 0; bottom: 0; background: rgba(88, 166, 255, 0.08); z-index: 0;
}
.book td.size span { position: relative; z-index: 1; }
.best-row {
  display: flex; justify-content: space-between; padding: 8px 6px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  margin: 6px 0; font-family: var(--mono); font-size: 13px;
}
.best-row b { color: var(--text); }
.staleness { padding: 2px 6px; border-radius: 3px; font-weight: 600; }
.staleness.FRESH { background: rgba(63, 185, 80, 0.15); color: var(--green); }
.staleness.STALE { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }
.staleness.DEAD  { background: rgba(248, 81, 73, 0.15); color: var(--red); }

.order .row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.order .row label { color: var(--muted); font-size: 11px; flex: 0 0 60px; }
.order .row input { flex: 1; background: var(--panel-soft); color: var(--text);
  border: 1px solid var(--border); padding: 5px 8px; border-radius: 4px; font-family: var(--mono); }
.seg { flex: 1; display: flex; }
.seg button {
  flex: 1; background: var(--panel-soft); color: var(--muted);
  border: 1px solid var(--border); padding: 5px 0; cursor: pointer;
}
.seg button:first-child { border-radius: 4px 0 0 4px; }
.seg button:last-child  { border-radius: 0 4px 4px 0; border-left: none; }
.seg button.active { background: var(--blue); color: #fff; border-color: var(--blue); }

#order-result {
  margin-top: 8px; padding: 8px; border-radius: 4px;
  background: var(--panel-soft); font-family: var(--mono); font-size: 11px;
  white-space: pre-wrap; word-break: break-all; max-height: 120px; overflow: auto;
}
.kv {
  display: grid; grid-template-columns: 1fr auto; gap: 4px 16px;
  font-family: var(--mono); font-size: 12px;
}
.kv span { color: var(--muted); }
.kv b { color: var(--text); text-align: right; }
#positions { font-family: var(--mono); font-size: 11px; }
#positions .pos { padding: 6px 0; border-bottom: 1px solid var(--border); }
#positions .pos .head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2px; gap: 6px; }
#positions .pos .head button.close { padding: 2px 10px; font-size: 10px; font-weight: 600; }
#positions .pos .tag { padding: 1px 6px; border-radius: 3px; font-size: 10px; font-weight: 600; }
#positions .pos .tag.LONG  { background: rgba(63, 185, 80, 0.15); color: var(--green); }
#positions .pos .tag.SHORT { background: rgba(248, 81, 73, 0.15); color: var(--red); }
#positions .pos .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; color: var(--muted); }
#positions .pos .grid b { color: var(--text); }
.check { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 11px; }
.order select { background: var(--panel-soft); color: var(--text); border: 1px solid var(--border); padding: 5px 8px; border-radius: 4px; flex: 1; font-family: var(--mono); }

.right-col { display: flex; flex-direction: column; gap: 12px; min-height: 0; overflow: hidden; }
.right-col .orders { flex: 0 0 auto; max-height: 35vh; overflow: auto; }
.right-col .fills { flex: 1 1 auto; min-height: 0; }
.fills #log {
  max-height: calc(65vh - 80px); overflow: auto; font-family: var(--mono); font-size: 11px;
}
#open-orders { font-family: var(--mono); font-size: 11px; }
#open-orders .ord {
  padding: 6px 8px; border-bottom: 1px solid var(--border);
  display: grid; grid-template-columns: 1fr 1fr auto; gap: 4px 12px; align-items: center;
}
#open-orders .ord.BUY  { border-left: 3px solid var(--green); }
#open-orders .ord.SELL { border-left: 3px solid var(--red); }
#open-orders .ord .meta { color: var(--muted); font-size: 10px; }
#open-orders .ord .tag {
  padding: 1px 5px; border-radius: 3px; font-size: 10px; font-weight: 600;
  background: var(--panel-soft); color: var(--muted); border: 1px solid var(--border);
}
#open-orders .ord button.cancel {
  padding: 2px 8px; font-size: 10px; font-weight: 600;
}
.fills .entry {
  padding: 6px 8px; border-bottom: 1px solid var(--border); display: grid;
  grid-template-columns: 80px 60px 60px 1fr; gap: 6px; align-items: center;
}
.fills .entry.buy  { border-left: 3px solid var(--green); }
.fills .entry.sell { border-left: 3px solid var(--red); }
.fills .entry .ts  { color: var(--muted); }
.fills .entry .px  { font-weight: 600; }
.fills .entry .meta { color: var(--muted); font-size: 10px; }

/* ── Slippage Sweep ───────────────────────────────────────────────────── */
.slippage form { display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
.slippage .small { font-size: 11px; }
.slippage .mt { margin-top: 6px; }
.sweep-tbl { width: 100%; border-collapse: collapse; font-size: 11px; margin-top: 8px; }
.sweep-tbl thead th { background: var(--panel-soft); padding: 4px 6px; text-align: right; border-bottom: 1px solid var(--border); }
.sweep-tbl thead th:first-child, .sweep-tbl tbody td:first-child { text-align: left; }
.sweep-tbl tbody tr { cursor: pointer; }
.sweep-tbl tbody tr:hover { background: var(--panel-soft); }
.sweep-tbl tbody tr.active { background: rgba(46, 89, 132, 0.18); outline: 1px solid var(--border); }
.sweep-tbl tbody td { padding: 4px 6px; text-align: right; border-bottom: 1px solid var(--border); }
.sweep-tbl .filled { color: var(--green); }
.sweep-tbl .rejected { color: var(--red); }
.sweep-tbl .diff-pos { color: var(--red); }     /* BUY: 비싸게 체결 */
.sweep-tbl .diff-neg { color: var(--red); }     /* SELL: 싸게 체결 */

/* ── Walk Trace ──────────────────────────────────────────────────────── */
.walk-tbl { width: 100%; border-collapse: collapse; font-size: 11px; margin-top: 6px; }
.walk-tbl thead th { background: var(--panel-soft); padding: 4px 6px; text-align: right; border-bottom: 1px solid var(--border); }
.walk-tbl thead th:first-child, .walk-tbl tbody td:first-child { text-align: left; }
.walk-tbl tbody td { padding: 3px 6px; text-align: right; border-bottom: 1px solid rgba(255,255,255,0.04); }
.walk-tbl tbody tr.first td { background: rgba(46, 89, 132, 0.18); font-weight: 600; }
.walk-tbl tbody tr.last td  { background: rgba(46, 89, 132, 0.10); font-weight: 600; }
.walk-foot { padding: 6px 4px 0 4px; line-height: 1.5; }
.walk-foot b { color: var(--fg); font-weight: 600; }