:root {
  --bg: #0f1419;
  --card: #1a2332;
  --border: #2d3a4f;
  --text: #e7ecf3;
  --muted: #8b9cb3;
  --accent: #3b82f6;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #eab308;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
}

.login-wrap .card {
  width: 100%;
  max-width: 360px;
}

.login-wrap input {
  width: 100%;
  padding: 0.75rem;
  margin: 0.75rem 0;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.login-wrap button {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.error { color: var(--red); font-size: 0.9rem; }
.hidden { display: none !important; }

.topbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.topbar h1 { margin: 0; font-size: 1.35rem; }
.subtitle { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.9rem; }

.actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

.btn {
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 0.875rem;
}

.btn.secondary { background: #374151; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.badge {
  font-size: 0.8rem;
  color: var(--green);
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--green);
  border-radius: 999px;
}

.badge.off { color: var(--muted); border-color: var(--border); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  padding: 1rem 1.5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-big {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.kv {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem 1rem;
  margin: 0;
}

.kv dt { color: var(--muted); font-size: 0.85rem; }
.kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }

.wide { grid-column: 1 / -1; }

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th, td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th { color: var(--muted); font-weight: 500; }

.side-buy { color: var(--green); }
.side-sell { color: var(--red); }

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

.events {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 280px;
  overflow-y: auto;
}

.events li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.events .time { color: var(--muted); font-size: 0.75rem; }

.status-HOLDING { color: var(--yellow); }
.status-COOLDOWN { color: var(--muted); }
.status-IDLE { color: var(--accent); }

.status-hint {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

.live-at {
  margin: 0.75rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
}

.toast {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  max-width: 360px;
  padding: 0.75rem 1rem;
  background: var(--card);
  border: 1px solid var(--green);
  border-radius: 8px;
  font-size: 0.875rem;
  z-index: 1000;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.toast.error {
  border-color: var(--red);
}

.toast.hidden {
  display: none;
}

.symbol-switch-desc {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.45;
}

.symbol-switch-desc code {
  background: var(--bg);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

.symbol-switch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.symbol-switch-row input {
  flex: 1;
  min-width: 140px;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  text-transform: uppercase;
}

.btn-warn {
  background: #b45309;
}

.btn-warn:hover {
  background: #d97706;
}

.btn-warn:disabled {
  opacity: 0.6;
}

.btn-block {
  width: 100%;
  margin-top: 0.75rem;
}