/* Extend the existing copper/sage studio without changing its shell. */
.study-tools, .saved-views { margin: 0 18px 16px; }
.study-search { display: block; font-size: 14px; color: var(--text-2); }
.study-search input, .view-save input {
  width: 100%; min-width: 0; padding: 10px 12px; margin-top: 7px;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--ink); color: var(--text); font-size: 14px;
}
.study-tools input:focus-visible, .saved-views input:focus-visible,
.study-tools button:focus-visible, .saved-views button:focus-visible,
.saved-views summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.study-selection { font-size: 14px; line-height: 1.5; margin: 12px 0 8px; overflow-wrap: anywhere; color: var(--text-2); }
.study-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.study-actions .btn { font-size: 14px; min-height: 40px; padding: 8px 10px; }
.study-actions .btn[aria-pressed="true"] { background: var(--amber-dim); color: #f2c9a4; border-color: var(--amber); }
.study-tools button:disabled, .saved-views button:disabled { opacity: .4; cursor: not-allowed; }
.study-count { color: var(--muted); font-size: 12px; margin: 9px 0 0; }
.parts .part[aria-pressed="true"] { border-color: var(--amber); }
.parts .part.is-hidden { opacity: .65; }
.parts .part small { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }
.saved-views { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 14px 0; }
.saved-views summary { cursor: pointer; font-size: 15px; font-weight: 600; }
.saved-views p { font-size: 13px; line-height: 1.5; color: var(--muted); }
.view-save { display: flex; gap: 7px; align-items: end; margin-bottom: 12px; }
.view-save label { flex: 1; min-width: 0; font-size: 14px; }
.view-save .btn { min-height: 42px; font-size: 14px; }
.saved-view { display: flex; align-items: center; gap: 7px; padding: 6px 0; }
.saved-view .view-open { flex: 1; min-width: 0; text-align: left; display: block; white-space: normal; overflow-wrap: anywhere; font-size: 14px; }
.saved-view small { display: block; color: var(--muted); margin-top: 5px; font-size: 12px; }
.saved-view .view-remove { min-width: 40px; min-height: 40px; font-size: 18px; }
@media (max-width: 1040px) {
  .study-actions .btn, .saved-view .btn { min-height: 44px; }
  .study-search input, .view-save input { font-size: 16px; }
}