:root {
  --bg: #0b0e14;
  --surface: #131824;
  --surface2: #1a2130;
  --border: #232c3f;
  --text: #e6ebf4;
  --muted: #8b96ab;
  --accent: #22d3a5;
  --danger: #f4536b;
  --warn: #f0b429;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}

.brand { font-weight: 700; font-size: 18px; letter-spacing: .5px; }
.logo { color: var(--accent); }

.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tab {
  background: none; border: none; color: var(--muted);
  padding: 8px 14px; border-radius: var(--radius);
  cursor: pointer; font-size: 14px; font-weight: 500;
}
.tab:hover { color: var(--text); background: var(--surface2); }
.tab.active { color: var(--accent); background: var(--surface2); }

main { max-width: 860px; margin: 0 auto; padding: 24px 16px 80px; }

.panel { display: none; }
.panel.active { display: block; animation: fadein .18s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }

h2 { font-size: 20px; margin-bottom: 6px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.hint { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.opt { color: var(--muted); font-weight: 400; }

.grid2 {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px; margin-bottom: 16px;
}

label { display: block; font-size: 13px; color: var(--muted); }
input, select, textarea {
  width: 100%; margin-top: 6px; padding: 10px 12px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: 15px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }

button {
  font-family: inherit; font-size: 14px; font-weight: 600;
  border: none; border-radius: var(--radius); cursor: pointer;
  transition: filter .12s ease;
}
button:hover { filter: brightness(1.12); }

.btn-primary { background: var(--accent); color: #06281f; padding: 12px 22px; width: 100%; }
.btn-secondary { background: var(--surface2); color: var(--accent); border: 1px solid var(--accent); padding: 9px 16px; }
.btn-ghost { background: none; color: var(--muted); border: 1px solid var(--border); padding: 9px 16px; margin-top: 14px; }
.btn-danger { background: none; color: var(--danger); border: 1px solid var(--danger); padding: 9px 16px; }

.result {
  margin-top: 18px; padding: 18px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.result.hidden { display: none; }
.result .big { font-size: 30px; font-weight: 700; color: var(--accent); }
.result .row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.result .row:last-child { border-bottom: none; }
.result .row span:first-child { color: var(--muted); }
.warn-box { margin-top: 10px; padding: 10px; background: rgba(240,180,41,.08); border: 1px solid var(--warn); border-radius: 8px; color: var(--warn); font-size: 13px; }

.trade-list { display: flex; flex-direction: column; gap: 10px; }
.trade-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.trade-meta { flex: 1; min-width: 0; }
.trade-sym { font-weight: 700; font-size: 15px; }
.trade-sub { color: var(--muted); font-size: 12.5px; margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trade-pnl { font-weight: 700; font-size: 15px; white-space: nowrap; }
.pnl-pos { color: var(--accent); }
.pnl-neg { color: var(--danger); }
.empty-state { text-align: center; color: var(--muted); padding: 48px 0; font-size: 14px; }
.del-btn { background: none; border: none; color: var(--muted); font-size: 17px; padding: 4px 8px; }
.del-btn:hover { color: var(--danger); }

dialog {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 14px;
  padding: 22px; width: min(520px, 92vw);
}
dialog::backdrop { background: rgba(0,0,0,.65); }
dialog h3 { margin-bottom: 16px; font-size: 17px; }
dialog label { margin-bottom: 12px; }
.dialog-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }
.dialog-actions button { width: auto; }
#t-cancel { background: none; border: 1px solid var(--border); color: var(--muted); }

.stat-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px; margin: 16px 0;
}
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px;
}
.stat-card .v { font-size: 22px; font-weight: 700; margin-top: 4px; }
.stat-card .k { color: var(--muted); font-size: 12px; }

#equity-chart { width: 100%; height: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-top: 8px; }
.chart-label { color: var(--muted); font-size: 12px; margin: 8px 0 4px; }

fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin: 18px 0; }
legend { color: var(--muted); font-size: 12px; padding: 0 6px; }
.settings-form label { margin-bottom: 14px; }
.about { margin-top: 26px; color: var(--muted); font-size: 13px; line-height: 1.6; }

@media (max-width: 560px) {
  .topbar { flex-direction: column; align-items: stretch; }
  main { padding: 16px 12px 60px; }
}