/* Trading operator hub — landing */
:root,
[data-theme="dark"] {
  --bg: #0a0e14;
  --surface: #141a24;
  --text: #eef2f8;
  --muted: #8b95a8;
  --border: #2a3548;
  --accent: #58a6ff;
  --lime: #3fb950;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(88, 166, 255, 0.15), transparent),
    var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1.25rem 3rem;
}

.hub-header {
  max-width: 720px;
  width: 100%;
  text-align: center;
  margin-bottom: 2rem;
}

.hub-kicker {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.hub-header h1 {
  margin: 0.35rem 0 0.5rem;
  font-size: 2.25rem;
  font-weight: 700;
}

.hub-lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.hub-meta {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  max-width: 1180px;
  width: 100%;
}

@media (min-width: 1100px) {
  .hub-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .hub-grid { grid-template-columns: 1fr; }
}

.hub-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.75rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.hub-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(88, 166, 255, 0.2);
}

.hub-card--monitor:hover { border-color: var(--lime); }

.hub-card--prod:hover { border-color: #ffb74d; }
.hub-card--learning:hover { border-color: #a78bfa; }

.hub-card-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 6px;
  width: fit-content;
}
.hub-card-badge--prod {
  color: #ffb74d;
  background: rgba(255, 183, 77, 0.12);
  border: 1px solid rgba(255, 183, 77, 0.35);
}
.hub-card-badge--learning {
  color: #c4b5fd;
  background: rgba(167, 139, 250, 0.12);
  border: 1px solid rgba(167, 139, 250, 0.35);
}

.hub-card--prod .hub-card-cta { color: #ffb74d; }
.hub-card--learning .hub-card-cta { color: #a78bfa; }

.hub-card--compare:hover { border-color: #58a6ff; }
.hub-card-badge--compare {
  color: #58a6ff;
  background: rgba(88, 166, 255, 0.12);
  border: 1px solid rgba(88, 166, 255, 0.35);
}
.hub-card--compare .hub-card-cta { color: #58a6ff; }

.hub-card-icon {
  font-size: 2rem;
  line-height: 1;
}

.hub-card h2 {
  margin: 0;
  font-size: 1.35rem;
}

.hub-card p {
  margin: 0;
  flex: 1;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.hub-card-cta {
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--accent);
}

.hub-card--monitor .hub-card-cta { color: var(--lime); }

.hub-card-links {
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
}

.hub-card-links a {
  font-size: 0.88rem;
  color: var(--muted);
  text-decoration: none;
}

.hub-card-links a:hover { color: var(--accent); text-decoration: underline; }

.hub-footer {
  margin-top: 2.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.hub-footer a { color: var(--accent); }

.hub-tr-status { font-weight: 600; margin-right: 0.5rem; }
.hub-tr-status--ok { color: #3dd68c; }
.hub-tr-status--bad { color: #f07178; }
.hub-tr-status--unknown { color: #8b949e; }