/* Pro Desk — TA Library tier navigation (Chart Desk) */

.ta-desk-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem 1rem;
  align-items: center;
  margin-bottom: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(167, 139, 250, 0.18);
  background: linear-gradient(90deg, rgba(12, 18, 36, 0.95), rgba(8, 14, 28, 0.9));
}

.ta-desk-header-text h2 {
  margin: 0.15rem 0 0.25rem;
  font-size: 1.1rem;
}

.ta-desk-header-text p {
  margin: 0;
  font-size: 0.78rem;
  color: #8ba3c7;
  max-width: 48ch;
}

.ta-tier-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.35rem;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.ta-tier-btn {
  padding: 0.45rem 0.75rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #94a3b8;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.ta-tier-btn:hover {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.05);
}

.ta-tier-btn.active {
  color: #f8fafc;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(167, 139, 250, 0.2));
  box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.25);
}

.ta-tier-btn[data-tier="basic"].active {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(56, 189, 248, 0.15));
}

.ta-tier-btn[data-tier="advanced"].active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.22), rgba(99, 102, 241, 0.18));
}

.ta-tier-btn[data-tier="algo"].active {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.25), rgba(236, 72, 153, 0.15));
}

.ta-tier-section {
  display: none;
}

.ta-tier-section.active {
  display: block;
}

.ta-algo-shortcuts {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.ta-algo-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.ta-algo-link:hover {
  border-color: rgba(167, 139, 250, 0.4);
  background: rgba(167, 139, 250, 0.08);
}

.ta-algo-link-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 800;
  background: rgba(167, 139, 250, 0.15);
  color: #c4b5fd;
}

.ta-algo-link strong {
  display: block;
  font-size: 0.82rem;
}

.ta-algo-link span {
  font-size: 0.68rem;
  color: #64748b;
}

body.module-manual .research-desk-shell {
  grid-template-columns: 220px minmax(0, 1.65fr) 250px;
  gap: 0.75rem;
  align-items: start;
}

@media (max-width: 1200px) {
  body.module-manual .research-desk-shell {
    grid-template-columns: 1fr;
  }
}

body.module-manual .manual-overlay-nav {
  max-height: min(68vh, 640px);
  overflow-y: auto;
  overflow-x: hidden;
}