/* Shared header: one row; mobile navigation overlays the page. */
.internal-header {
  box-sizing: border-box; position: relative; z-index: 50;
  display: flex; align-items: center; gap: 16px;
  padding: 4px 24px; min-height: 56px;
  background: #13222e; color: #fff; font: 500 15px/1.4 system-ui,sans-serif;
  border-bottom: 3px solid #f08a4b;
}
.internal-header a { color: #fff; text-decoration: none; }
.internal-brand { flex: 0 0 auto; font-weight: 800; white-space: nowrap; }
.internal-menu { flex: 1; min-width: 0; }
.internal-menu summary {
  display: none; list-style: none; cursor: pointer; box-sizing: border-box;
  width: 44px; height: 44px; align-items: center; justify-content: center;
  border: 1px solid #506270; border-radius: 8px;
}
.internal-menu summary::marker { content: ""; }
.internal-menu summary::-webkit-details-marker { display: none; }
.internal-menu summary svg { display: block; }
.internal-menu nav { display: flex; gap: 8px; align-items: center; overflow-x: auto; }
.internal-menu a, .internal-logout button {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px;
  box-sizing: border-box; border-radius: 8px; white-space: nowrap;
}
.internal-menu a[aria-current] { background: #0d5c74; box-shadow: inset 0 -3px #f08a4b; }
.internal-logout { flex: 0 0 auto; margin: 0; }
.internal-logout button {
  font: inherit; border: 1px solid #506270; background: transparent; color: #fff; cursor: pointer;
}
.internal-header :focus-visible { outline: 3px solid #f08a4b; outline-offset: 2px; }
.internal-breadcrumbs {
  display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 24px;
  background: #f4f7f8; color: #506270; font: 14px/1.4 system-ui,sans-serif;
}
.internal-breadcrumbs a { color: #0d5c74; }
.management-links { display: flex; flex-wrap: wrap; gap: 12px; }
#header { flex-wrap: wrap; }
#header > .internal-header, #header > .internal-breadcrumbs { flex-basis: 100%; width: 100%; }
@media (max-width: 760px) {
  .internal-header { padding: 4px 12px; gap: 8px; min-height: 55px; }
  .internal-brand { margin-right: auto; }
  .internal-menu { flex: 0 0 44px; }
  .internal-menu summary { display: flex; }
  .internal-menu[open] summary { background: #0d5c74; }
  .internal-menu nav {
    position: absolute; top: 100%; left: 0; right: 0;
    display: grid; gap: 4px; padding: 8px 12px;
    max-height: 65vh; overflow-y: auto; background: #13222e;
    border-bottom: 3px solid #f08a4b; box-shadow: 0 8px 20px #13222e33;
  }
  .internal-menu a { white-space: normal; overflow-wrap: anywhere; }
  .internal-logout button { padding-inline: 10px; font-size: 14px; }
  .internal-breadcrumbs { padding: 6px 16px; }
  .management-links { display: grid; grid-template-columns: minmax(0,1fr); gap: 8px; }
  .management-links > a { width: 100%; min-height: 48px; justify-content: flex-start; text-align: left; }
  /* Workspace already has section navigation; keep the first screen for work. */
  .workspace-page > .internal-breadcrumbs { display: none; }
  .workspace-page .ws-topbar { min-height: 44px; padding: 0 16px; }
  .workspace-page .ws-topbar > div > span { display: none; }
  .workspace-page .ws-content { padding-top: 10px; }
}
@media (max-width: 919px) {
  .workspace-page .ws-content { padding-bottom: calc(112px + env(safe-area-inset-bottom, 0px)); }
}