/* Studio layout: tabs, gutter editor, status bar. */

.studio-main { padding: 18px 0 80px; }
.studio .top { padding-bottom: 14px; }

.studio-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: 1px solid var(--line); border-bottom: 0;
  border-radius: 14px 14px 0 0; background: var(--card);
  padding: 8px 10px 0 10px; min-height: 46px;
}
.studio-tabs { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.studio-tabs::-webkit-scrollbar { display: none; }
.tab-btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid transparent; border-bottom: 0;
  border-radius: 9px 9px 0 0; padding: 8px 12px;
  font-size: 12.5px; color: var(--muted); background: transparent;
  cursor: pointer; white-space: nowrap; max-width: 220px;
}
.tab-btn:hover { color: var(--fg); background: rgba(255, 255, 255, .05); }
.tab-btn.on { color: var(--fg); background: rgba(255, 255, 255, .09); border-color: var(--line); }
.tab-btn .nm { overflow: hidden; text-overflow: ellipsis; }
.tab-btn .x { font-size: 11px; color: var(--muted-2); padding: 0 2px; border-radius: 4px; }
.tab-btn .x:hover { color: var(--danger); background: rgba(255, 255, 255, .08); }
.tab-btn.dirty .nm::after { content: " •"; color: var(--ok); }
.tab-add { border: 1px dashed var(--line); border-radius: 8px; padding: 6px 10px; color: var(--muted); font-size: 13px; background: transparent; cursor: pointer; }
.tab-add:hover { color: var(--fg); border-color: var(--line-strong); }
.studio-actions { display: flex; gap: 8px; padding-bottom: 8px; }

.editor-shell {
  display: flex; border: 1px solid var(--line); background: rgba(6, 6, 12, .72);
  border-radius: 0 0 14px 14px; overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .04);
}
.gutter {
  padding: 16px 10px 16px 14px; text-align: right;
  font-family: var(--mono); font-size: 13px; line-height: 1.65; color: var(--muted-2);
  user-select: none; background: rgba(255, 255, 255, .02);
  border-right: 1px solid var(--line); white-space: pre; overflow: hidden;
  min-width: 46px;
}
#code {
  flex: 1; border: 0; outline: none; resize: none;
  background: transparent; color: var(--fg);
  font-family: var(--mono); font-size: 13.5px; line-height: 1.65;
  padding: 16px 18px; min-height: 460px; tab-size: 4;
  caret-color: var(--ok);
  white-space: pre; overflow: auto;
}

.studio-foot {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 4px; font-size: 12.5px; color: var(--muted-2);
  border-bottom: 1px solid var(--line);
}
.studio-foot .grow { flex: 1; }
.studio-foot .ok { color: var(--ok); }
.studio-foot .bad { color: var(--danger); }

.studio-side { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; margin-top: 18px; }
@media (max-width: 900px) { .studio-side { grid-template-columns: 1fr; } }

.hub-list-mini { display: grid; gap: 10px; margin-top: 12px; }
.hub-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.hub-row .t { font-family: var(--serif); font-size: 16px; }
.hub-row .d { color: var(--muted); font-size: 12.5px; }