:root {
  color-scheme: dark;
  --bg: #0f1420;
  --bg-card: #171d2c;
  --border: #2a3142;
  --text: #e5e9f0;
  --text-muted: #8a93a6;
  --accent: #4f8cff;
  --green: #3ecf8e;
  --red: #ef5a5a;
  --amber: #e0a53a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.nav-brand { display: flex; align-items: center; text-decoration: none; }

/* The logo PNG has an opaque white background, which would show as a stray
   white rectangle directly on the dark nav/login backgrounds — wrapping it
   in its own small white badge reads as intentional instead. */
.brand-logo-wrap {
  display: inline-flex;
  align-items: center;
  background: #fff;
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  line-height: 0;
}
.brand-logo { height: 26px; width: auto; display: block; }

.brand-logo-wrap-large {
  border-radius: 10px;
  padding: 1rem 1.5rem;
  margin: 0 auto 1.5rem;
  width: fit-content;
}
.brand-logo-large { height: 48px; width: auto; display: block; }

.nav-links { display: flex; gap: 1.25rem; }
.nav-links a { color: var(--text-muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.nav-user { display: flex; align-items: center; gap: 0.75rem; color: var(--text-muted); font-size: 0.9rem; }
.role-tag {
  text-transform: uppercase;
  font-size: 0.7rem;
  background: var(--border);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.inline-form { display: inline; }
.link-button {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 0.9rem; padding: 0;
}
.link-button:hover { color: var(--text); }

.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

h1 { font-size: 1.1rem; font-weight: 600; color: var(--text-muted); margin: 1.75rem 0 0.75rem; text-transform: uppercase; letter-spacing: 0.03em; }
h1:first-child { margin-top: 0; }

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.status-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
}

.status-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.strategy-name { font-weight: 600; }

.badge { font-size: 0.7rem; font-weight: 700; padding: 0.15rem 0.5rem; border-radius: 999px; }
.badge-demo { background: rgba(62,207,142,0.15); color: var(--green); }
.badge-live { background: rgba(239,90,90,0.15); color: var(--red); }
.badge-unknown { background: rgba(138,147,166,0.15); color: var(--text-muted); }

.status-row { display: flex; justify-content: space-between; font-size: 0.85rem; padding: 0.2rem 0; color: var(--text-muted); }
.status-row span:last-child { color: var(--text); }
.status-row.halted { color: var(--amber); }
.status-row.halted span:last-child { color: var(--amber); }
.status-row.muted { font-size: 0.75rem; opacity: 0.7; }

.pnl-pos { color: var(--green); }
.pnl-neg { color: var(--red); }

.activity-table { width: 100%; border-collapse: collapse; background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.activity-table th, .activity-table td { text-align: left; padding: 0.6rem 0.9rem; font-size: 0.85rem; border-bottom: 1px solid var(--border); }
.activity-table th { color: var(--text-muted); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; }
.activity-table tr:last-child td { border-bottom: none; }
.activity-table td.empty { text-align: center; color: var(--text-muted); }

.login-card {
  max-width: 340px;
  margin: 4rem auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
}
.login-card form { display: flex; flex-direction: column; gap: 1rem; }
.login-card label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.85rem; color: var(--text-muted); }
.login-card .error { color: var(--red); font-size: 0.85rem; }

input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.5rem;
  font-size: 0.9rem;
}

button, .button-link {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button.secondary { background: var(--border); color: var(--text); }
button.danger { background: var(--red); }

.filters { display: flex; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.filters label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.8rem; color: var(--text-muted); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.tile { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.tile-label { display: block; font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; }
.tile-value { display: block; font-size: 1.5rem; font-weight: 700; margin-top: 0.25rem; }

#equity-chart { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }

.control-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.control-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.control-actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.control-actions button:disabled { opacity: 0.4; cursor: not-allowed; }
.mode-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.mode-badge { background: var(--bg-card); border: 1px solid var(--border); border-radius: 999px; padding: 0.35rem 0.8rem; font-size: 0.8rem; color: var(--text-muted); }

.note { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.note code { background: var(--bg-card); border: 1px solid var(--border); border-radius: 4px; padding: 0.05rem 0.35rem; }

.error {
  background: rgba(239,90,90,0.1);
  border: 1px solid rgba(239,90,90,0.3);
  color: var(--red);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.login-card .error { border: none; background: none; padding: 0; }