.shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-base);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 42px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.title {
  font-size: 0.9375em;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
}

.headerActions {
  display: flex;
  gap: 8px;
}

.headerBtn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 4px 10px;
  font-size: 0.8125em;
  font-family: 'Cinzel', serif;
  transition: border-color 0.15s, color 0.15s;
}

.headerBtn:hover {
  border-color: var(--border-accent);
  color: var(--accent-gold);
}

.headerBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.panels {
  display: flex;
  flex: 1;
  overflow: hidden;
}