/* App geometry lives here, after component styles. Browser zoom and narrow
   windows use the same reflow rules; navigation never shares a narrow rail. */
.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100dvh;
}
.sidebar {
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100dvh;
  min-width: 0;
  overflow-y: auto;
  padding: 24px 16px;
}
.sidebar nav { display: grid; grid-template-columns: minmax(0, 1fr); gap: 5px; min-width: 0; }
.sidebar .nav-btn { position: relative; min-width: 0; min-height: 44px; gap: 12px; white-space: nowrap; font-size: 14px; }
.sidebar .nav-icon-wrap { display: grid; place-items: center; width: 22px; height: 22px; flex: 0 0 22px; }
.sidebar .nav-icon { display: block; width: 20px; height: 20px; }
.sidebar .nav-btn.active::before { position: absolute; left: 0; top: 50%; margin: 0; transform: translateY(-50%); }
.nav-btn span, .nav-btn em, .brand-cross { flex-shrink: 0; }
.brand { display: flex; min-width: 0; gap: 14px; padding: 0 4px 32px; }
.brand-cross { width: 52px; height: 52px; font-size: 33px; border-radius: 12px; }
.brand > div { min-width: 0; }
.brand strong { font-size: 16px; }
.brand small { font-size: 11px; letter-spacing: .08em; white-space: nowrap; }
.sidebar-foot { display: block; }
main { min-width: 0; padding: 0 clamp(20px, 3vw, 42px) 48px; }
.topbar {
  height: auto;
  min-height: 104px;
  padding-block: 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 24px;
}
.page-title { min-width: 0; flex: 1 1 260px; }
.page-title h2 { font-size: clamp(24px, 2.2vw, 32px); line-height: 1.3; }
.page-title p { overflow-wrap: anywhere; }
.system-state { display: flex; min-width: 0; max-width: 100%; flex: 0 1 auto; font-size: 12px; }
.system-state i { flex-shrink: 0; }
.system-state span { min-width: 0; overflow-wrap: anywhere; }
.upload-grid { grid-template-columns: minmax(0, 1fr) minmax(240px, .36fr); }
.upload-grid > *, #uploadIntent { min-width: 0; }
/* Visually hidden file input must not keep its global width:100% outside the form. */
#uploadForm > #fileInput { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); }
#uploadForm:has(#fileInput:focus-visible) .dropzone { outline: 3px solid rgba(49,95,235,.3); outline-offset: 2px; }
.upload-intent-options {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 16px;
}
.upload-intent-options button { min-width: 0; padding: 22px; }
.upload-intent-options strong { font-size: 18px; line-height: 1.5; }
.upload-intent-options span { font-size: 14px; }
#uploadIntent h3 { font-family: var(--font); font-size: 24px; line-height: 1.4; margin-block: 8px 12px; }
.dropzone { padding: 24px 16px; min-width: 0; }
.dropzone h3 { font-size: 20px; line-height: 1.5; }
.batch-toolbar, .batch-task, .batch-task .actions { flex-wrap: wrap; }
#uploadChangeIntent { float: none; justify-self: start; }

@media (max-width: 1199px) {
  .upload-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 1023px) {
  body { padding-bottom: 0; }
  .app-shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand account" "nav nav";
    position: static;
    height: auto;
    overflow: visible;
    padding: 12px 20px;
    gap: 10px 16px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .brand { grid-area: brand; padding: 0; gap: 10px; }
  .brand small { font-size: 10px; letter-spacing: .04em; }
  .brand strong { font-family: var(--font); font-size: 14px; }
  .brand-cross { width: 40px; height: 40px; font-size: 27px; }
  .sidebar nav { grid-area: nav; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .sidebar .nav-btn { padding: 8px 12px; }
  .sidebar .nav-btn.active:before { display: none; }
  .sidebar-foot { grid-area: account; display: flex; align-items: center; gap: 8px; padding: 0; margin: 0; border: 0; }
  .sidebar-foot .user-chip { display: none; }
  .sidebar-foot .text-btn { min-height: 44px; padding: 8px; margin: 0; font-size: 12px; white-space: nowrap; }
  main { padding: 0 20px 32px; }
}
@media (max-width: 599px) {
  .sidebar { grid-template-areas: "brand brand" "nav nav" "account account"; padding: 12px 16px; gap: 8px; }
  .sidebar nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar-foot { justify-content: flex-end; }
  main { padding: 0 16px 28px; }
  .topbar { padding-block: 18px; gap: 10px; min-height: 0; margin-bottom: 18px; }
  .page-title { flex-basis: 100%; }
  .page-title h2 { font-size: 24px; }
  #view-upload .panel { padding: 18px; }
  .upload-intent-options { grid-template-columns: minmax(0, 1fr); margin-top: 20px; }
  .upload-intent-options button { padding: 18px; gap: 8px; }
  #uploadIntent h3 { font-size: 21px; }
  .dropzone { min-height: 240px; }
  #uploadChangeIntent { max-width: 100%; }
}
@media print {
  .sidebar, .topbar { display: none !important; }
  .app-shell { display: block; }
  main { padding: 0; }
}