:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-elev: #1f2630;
  --fg: #c9d1d9;
  --fg-dim: #8b949e;
  --accent: #58a6ff;
  --pos: #3fb950;
  --neg: #f85149;
  --warn: #d29922;
  --border: #30363d;
  --mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.4;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.6rem 1.2rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
header .logo a { font-weight: 700; color: var(--fg); }
header nav { display: flex; gap: 1rem; flex: 1; flex-wrap: wrap; }
header nav a { color: var(--fg-dim); font-weight: 500; }
header nav a.on { color: var(--fg); border-bottom: 2px solid var(--accent); padding-bottom: 2px; }
header .user a { color: var(--fg-dim); }

main { max-width: 1400px; margin: 0 auto; padding: 1.2rem; }

h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 0 0 0.6rem; color: var(--fg); }
h3 { font-size: 0.95rem; margin: 0.8rem 0 0.4rem; color: var(--fg-dim); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.muted { color: var(--fg-dim); font-size: 0.85rem; font-weight: normal; }
.error { color: var(--neg); }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

.mono { font-family: var(--mono); font-size: 0.85rem; }
.small { font-size: 0.78rem; }
pre.mono {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.7rem 0.9rem;
  overflow: auto;
  max-height: 60vh;
  white-space: pre-wrap;
  word-break: break-word;
}

.kv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.4rem 1rem; }
.kv { display: flex; justify-content: space-between; padding: 0.2rem 0; border-bottom: 1px dashed var(--border); gap: 1rem; }
.kv .k { color: var(--fg-dim); }
.kv .v { font-family: var(--mono); font-size: 0.85rem; text-align: right; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--fg-dim); font-weight: 500; background: var(--bg-elev); position: sticky; top: 0; }
.data-table tbody tr:hover { background: rgba(88, 166, 255, 0.04); }

.side-long, .side-buy { color: var(--pos); }
.side-short, .side-sell { color: var(--neg); }

.filters { display: flex; gap: 0.8rem; align-items: end; margin-bottom: 1rem; flex-wrap: wrap; }
.filters label { display: flex; flex-direction: column; font-size: 0.8rem; color: var(--fg-dim); gap: 0.25rem; }
input, select {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  min-width: 12ch;
  font-size: 0.85rem;
  font-family: inherit;
}
button, .btn {
  background: var(--accent);
  color: #0d1117;
  border: none;
  padding: 0.45rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  display: inline-block;
  text-decoration: none;
  font-size: 0.85rem;
}
.btn { background: var(--bg-elev); color: var(--accent); border: 1px solid var(--border); }
.btn:hover { background: var(--bg); text-decoration: none; }
button:hover { filter: brightness(1.1); }

.actions { display: flex; gap: 0.6rem; margin-bottom: 1rem; }
.window-picker { display: flex; gap: 0.4rem; margin-bottom: 1rem; }
.window-picker a {
  padding: 0.35rem 0.8rem;
  border-radius: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-size: 0.85rem;
}
.window-picker a.on { color: var(--fg); border-color: var(--accent); }

.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  width: 320px;
}
.login-card h1 { text-align: center; }
.login-card form { display: flex; flex-direction: column; gap: 0.8rem; margin-top: 1rem; }
.login-card label { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--fg-dim); }
.login-card input { margin-top: 0.3rem; }
.login-card .error { padding: 0.5rem 0.7rem; background: rgba(248, 81, 73, 0.1); border: 1px solid var(--neg); border-radius: 4px; margin-bottom: 0.8rem; font-size: 0.85rem; }

code {
  background: var(--bg-elev);
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 0.85em;
}

@media (max-width: 720px) {
  header { flex-wrap: wrap; gap: 0.6rem; padding: 0.5rem 0.8rem; }
  header nav { order: 3; width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  header nav a { white-space: nowrap; }
  main { padding: 0.8rem; }
  .data-table { font-size: 0.78rem; }
  .data-table th, .data-table td { padding: 0.3rem 0.4rem; }
  .kv-grid { grid-template-columns: 1fr; }
}