:root {
  --bg: #0e1117; --card: #171c26; --card2: #1e2530; --border: #2a3342;
  --text: #e6ebf2; --muted: #8b96a7; --accent: #3b82f6;
  --green: #22c55e; --red: #ef4444; --amber: #f59e0b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.45 -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: calc(64px + env(safe-area-inset-bottom));
}
.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--bg); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; letter-spacing: .3px; }
.mode-pill {
  font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
}
.mode-pill.demo { background: #1d3a5f; color: #7db4ff; }
.mode-pill.live { background: #5f1d1d; color: #ff8c8c; }
.view { padding: 12px; max-width: 560px; margin: 0 auto; }
.loading { color: var(--muted); text-align: center; padding: 40px 0; }

.item {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 10px; overflow: hidden;
}
.item-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px; cursor: pointer;
}
.head-main { min-width: 0; }
.head-top { display: flex; align-items: center; gap: 8px; }
.dir {
  font-size: 11px; font-weight: 800; padding: 2px 7px; border-radius: 6px;
}
.dir.long { background: #14382a; color: var(--green); }
.dir.short { background: #3a1a1a; color: var(--red); }
.title { font-weight: 700; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.head-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.head-right { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.badge-st {
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px;
  background: var(--card2); color: var(--muted);
}
.badge-st.active { background: #1d3a5f; color: #7db4ff; }
.badge-st.tp { background: #14382a; color: var(--green); }
.badge-st.sl, .badge-st.expired { background: #3a1a1a; color: var(--red); }
.badge-st.placed { background: #1d3a5f; color: #7db4ff; }
.badge-st.filled { background: #14382a; color: var(--green); }
.badge-st.canceled, .badge-st.rejected { background: #3a1a1a; color: var(--red); }
.q {
  display: inline-block; width: 16px; height: 16px; line-height: 14px;
  margin-left: 5px; padding: 0; font-size: 11px; font-weight: 700;
  border-radius: 50%; background: var(--card2); color: var(--muted);
  border: 1px solid var(--border); cursor: pointer; vertical-align: middle;
}
.q:active { background: var(--accent); color: #fff; }
.chev { color: var(--muted); transition: transform .15s; }
.item.open .chev { transform: rotate(180deg); }

.item-body { display: none; padding: 0 14px 12px; border-top: 1px solid var(--border); }
.item.open .item-body { display: block; }
.kvs { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; margin: 10px 0; font-size: 14px; }
.kvs .k { color: var(--muted); }
.kvs .k.up { color: var(--green); }
.kvs .k.down { color: var(--red); }
.kvs .v { text-align: right; font-variant-numeric: tabular-nums; }
.v.up { color: var(--green); } .v.down { color: var(--red); }
.ob-zone {
  background: var(--card2); border: 1px dashed var(--border);
  border-radius: 8px; padding: 8px 10px; margin: 8px 0; font-size: 13px;
  color: var(--muted);
}
.ob-zone b { color: var(--text); }
.reason { font-size: 12px; color: var(--muted); margin: 6px 0; }

.btn {
  display: block; width: 100%; border: 0; border-radius: 10px;
  padding: 11px 14px; font-size: 14px; font-weight: 700; cursor: pointer;
  background: var(--accent); color: #fff; margin-top: 8px;
}
.btn:disabled { opacity: .4; cursor: default; }
.btn.danger { background: #7f1d1d; }
.btn.ghost { background: var(--card2); color: var(--text); border: 1px solid var(--border); }

.form-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px; margin-bottom: 12px;
}
.form-card h3 { font-size: 14px; color: var(--muted); margin-bottom: 10px; font-weight: 600; }
label.f { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input.f, select.f {
  width: 100%; background: var(--card2); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-size: 15px;
}
.seg { display: flex; gap: 6px; }
.seg button {
  flex: 1; background: var(--card2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 0; font-size: 14px; cursor: pointer;
}
.seg button.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.seg button.danger.on { background: var(--red); border-color: var(--red); }

.badge {
  position: absolute; top: -6px; right: -10px; min-width: 16px; height: 16px;
  border-radius: 999px; background: var(--red); color: #fff;
  font-size: 10px; font-weight: 700; display: flex; align-items: center; justify-content: center;
  padding: 0 4px;
}
.tab-btn { position: relative; }
.toast {
  position: fixed; top: 12px; left: 50%; transform: translateX(-50%);
  background: #263244; color: var(--text); border: 1px solid var(--border);
  padding: 10px 16px; border-radius: 10px; z-index: 50; max-width: 90%;
  font-size: 14px; box-shadow: 0 6px 20px rgba(0,0,0,.4);
}
.toast.err { background: #3a1a1a; border-color: #7f1d1d; }

.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 5;
  display: flex; background: var(--card); border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}
.tabbar .tab-btn {
  flex: 1; background: none; border: 0; color: var(--muted);
  padding: 10px 0 12px; font-size: 12px; font-weight: 600; cursor: pointer;
}
.tabbar .tab-btn.active { color: var(--accent); }

.section-title { font-size: 13px; color: var(--muted); margin: 14px 2px 6px; font-weight: 600; }
.order-row {
  display: flex; justify-content: space-between; font-size: 13px;
  padding: 6px 0; border-bottom: 1px solid var(--border);
}
.order-row:last-child { border-bottom: 0; }
.st { font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 999px; background: var(--card2); color: var(--muted); }
.st.filled { background: #14382a; color: var(--green); }
.st.placed { background: #1d3a5f; color: #7db4ff; }
.st.canceled, .st.rejected { background: #3a1a1a; color: var(--red); }
.hint { font-size: 12px; color: var(--muted); margin-top: 8px; }
.empty { color: var(--muted); text-align: center; padding: 30px 0; font-size: 14px; }