.page-frame {
  width: 100%;
  margin-inline: auto;
}

.main-panel[data-page-layout="wide"] .page-frame { max-width: var(--content-wide); }
.main-panel[data-page-layout="standard"] .page-frame { max-width: var(--content-standard); }
.main-panel[data-page-layout="form"] .page-frame { max-width: var(--content-form); }

.page-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.page-frame > [data-page-slot="actions"] {
  margin-bottom: var(--space-4);
}

.page-header {
  display: grid;
  gap: var(--space-3);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--line);
}

.page-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
}

.page-header-row > div { min-width: 0; }
.page-header-identity { min-width: 0; }
.page-header-title-line { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); min-width: 0; }
.page-header h1 { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2); min-width: 0; margin: 0; font-size: clamp(26px, 3vw, 34px); line-height: 1.12; overflow-wrap: anywhere; }
.page-heading-prefix, .page-heading-separator { color: var(--muted); font-size: var(--font-body); font-weight: 650; white-space: nowrap; }
.page-heading-title { min-width: 0; }
.page-heading-action { border: 0; padding: 0; background: transparent; color: inherit; cursor: pointer; font: inherit; text-align: left; text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 4px; }
.page-heading-action:hover { text-decoration-color: currentColor; }
.page-heading-action:focus-visible, .page-back-control:focus-visible, .page-tabs button:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.page-header-description { max-width: 720px; margin: var(--space-2) 0 0; color: var(--muted); }

.page-back-control {
  width: fit-content;
  min-height: 44px;
  padding: var(--space-1) 0;
  border: 0;
  background: transparent;
  color: var(--brand);
  cursor: pointer;
  font: inherit;
  font-weight: 650;
}

.page-record-label { margin: 0 0 var(--space-1); color: var(--muted); }
.page-frame > [data-page-slot="tabs"] { min-width: 0; }
.page-tabs { display: flex; width: 100%; min-width: 0; overflow-x: auto; border-bottom: 1px solid var(--line); scrollbar-width: thin; }
.page-tabs button { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 7px; min-height: 48px; padding: 10px 16px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); cursor: pointer; font: inherit; font-weight: 650; white-space: nowrap; }
.page-tabs button[aria-selected="true"] { border-bottom-color: var(--brand); color: var(--text); }
.page-tab-badge { display: grid; place-items: center; min-width: 22px; height: 22px; padding-inline: 5px; border-radius: var(--radius-pill); background: var(--surface-soft); color: var(--text-soft); font-size: 13px; }
.page-empty-state { padding: var(--space-6) 0; color: var(--muted); }
.feedback-notice { padding: var(--space-4); border-radius: var(--radius-md); background: var(--surface-soft); }
.feedback-notice--success { background: var(--success-soft); color: var(--success); }
.feedback-notice--warning { background: var(--warning-soft); color: var(--warning); }
.feedback-notice--error { background: var(--error-soft); color: var(--error); }

.main-panel.shared-module-bar > .topbar {
  display: flex;
  flex-flow: row nowrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 56px;
  padding-block: 6px;
  padding-inline: var(--page-gutter);
}
.main-panel.shared-module-bar > .topbar .page-title { display: block; min-width: 0; }
.main-panel.shared-module-bar > .topbar #pageHeading {
  display: block;
  margin: 0;
  color: var(--text);
  font-size: 1.3rem;
  font-weight: 750;
  line-height: 1.2;
}
.main-panel.shared-module-bar > .topbar .topbar-actions {
  align-items: center;
  grid-template-columns: auto;
  margin-left: auto;
}

@media (max-width: 820px) {
  .main-panel.shared-module-bar > .topbar #pageHeading { font-size: 1.18rem; }
  .page-header-row { align-items: stretch; flex-direction: column; gap: var(--space-4); }
  .page-actions { justify-content: stretch; }
  .page-actions > * { flex: 1 1 auto; }
  .page-tabs { margin-inline: calc(-1 * var(--page-gutter)); width: calc(100% + 2 * var(--page-gutter)); padding-inline: var(--page-gutter); }
}