/* Application shell and navigation. No page-specific colors. */
.app-shell, .olk-shell { min-height: 100dvh; }
.app-shell::before { content: ''; position: fixed; left: 0; top: 0; right: 0; height: 3px; z-index: 40; background: linear-gradient(90deg, var(--olk-gold), var(--olk-accent-ink)); }
.skip-link { position: fixed; left: 12px; top: -100px; z-index: 100; background: var(--olk-surface); border: 1px solid var(--olk-focus); color: var(--olk-ink); padding: 12px 16px; border-radius: var(--olk-radius-md); }
.skip-link:focus { top: 12px; }
.sidebar, .olk-sidebar { position: fixed; left: 0; top: 3px; bottom: 0; width: var(--olk-sidebar-width); background: var(--olk-sidebar); border-right: 1px solid var(--olk-border); display: flex; flex-direction: column; padding: 28px 16px 16px; z-index: 30; }
.sidebar > .wordmark { margin: 0 12px 20px; }
.workspace-label { padding: 0 12px; display: flex; align-items: center; gap: 10px; font-size: .875rem; font-weight: 600; margin-bottom: 28px; }
.workspace-mark { display: none; }
.workspace-label small { display: block; font-size: .75rem; color: var(--olk-muted); font-weight: 400; margin-top: 4px; }
.sidebar nav { overflow-y: auto; scrollbar-width: thin; scrollbar-color: var(--olk-border) transparent; }
.nav-group { margin-bottom: 28px; }
.nav-heading { display: block; padding: 0 12px; margin-bottom: 9px; font-size: .75rem; line-height: 1.6; font-weight: 600; letter-spacing: .065em; color: var(--olk-muted); }
.nav-item { display: flex; align-items: center; gap: 12px; min-height: 44px; margin: 4px 0; padding: 11px 12px; border-radius: var(--olk-radius-md); font-size: .875rem; font-weight: 450; color: var(--olk-ink); position: relative; transition: background var(--olk-motion-fast), color var(--olk-motion-fast); }
.nav-item .icon { width: 20px; height: 20px; }
.nav-item:hover { background: var(--olk-surface-hover); }
.nav-item.active { background: var(--olk-accent); color: var(--olk-accent-ink); font-weight: 600; }
.sidebar-bottom { margin-top: auto; padding-top: 16px; flex-shrink: 0; }
.workspace-status { display: none; }
.user-block { display: flex; align-items: center; gap: 10px; border-top: 1px solid var(--olk-border); padding: 20px 7px 10px; }
.user-avatar { display: flex; align-items: center; justify-content: center; flex-shrink: 0; width: 38px; height: 38px; background: var(--olk-accent); color: var(--olk-accent-ink); border-radius: 50%; font-size: .8125rem; font-weight: 600; }
.user-avatar.light { background: var(--olk-surface-subtle); color: var(--olk-muted); }
.user-info { min-width: 0; }
.user-info strong { display: block; font-size: .8125rem; font-weight: 600; overflow-wrap: anywhere; }
.user-info small { display: block; font-size: .75rem; color: var(--olk-muted); margin-top: 3px; overflow-wrap: anywhere; }
.account-actions { display: flex; align-items: center; justify-content: space-between; padding: 0 6px; }
.workspace { margin-left: var(--olk-sidebar-width); min-height: 100dvh; display: flex; flex-direction: column; min-width: 0; }
.topbar { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 32px; background: var(--olk-surface); border-bottom: 1px solid var(--olk-border); }
.breadcrumb { display: flex; align-items: center; gap: 12px; font-size: .8125rem; color: var(--olk-muted); min-width: 0; }
.breadcrumb-divider { color: var(--olk-input-border); }
.breadcrumb strong { font-weight: 500; color: var(--olk-ink); }
.topbar-right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.topbar-date { font-size: .8125rem; color: var(--olk-muted); }
.environment-label { font-size: .6875rem; font-weight: 600; letter-spacing: .06em; color: var(--olk-muted); border: 1px solid var(--olk-border); border-radius: var(--olk-radius-sm); padding: 5px 7px; }
.mobile-menu, .sidebar-overlay { display: none; }
#main-content { padding: 34px 32px 40px; max-width: 1680px; width: 100%; margin: 0 auto; outline: 0; }
#main-content[aria-busy='false'] > .page-header { animation: olk-appear var(--olk-motion-normal) var(--olk-ease); }
.workspace-footer { display: flex; justify-content: space-between; gap: 20px; padding: 18px 32px; margin-top: auto; font-size: .75rem; color: var(--olk-muted); border-top: 1px solid var(--olk-border); }
.workspace-footer > span:first-child { font-weight: 600; }
.page-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.page-header > div { min-width: 0; }
.page-header h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -.035em; margin: 0 0 9px; overflow-wrap: anywhere; }
.page-header p { color: var(--olk-muted); font-size: .875rem; margin: 0; }
.page-actions { display: flex; gap: 10px; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }
.back-link { display: inline-flex; align-items: center; gap: 7px; font-size: .8125rem; color: var(--olk-muted); margin: 0 0 20px; }
.back-link:hover { color: var(--olk-accent-ink); }
.back-link .icon { width: 17px; height: 17px; }
.startup-error { max-width: 650px; margin: 10vh auto; padding: 16px; }

@media (max-width: 1200px) {
  .topbar { padding-left: 24px; padding-right: 24px; }
  #main-content { padding: 28px 24px 36px; }
  .topbar-right { gap: 12px; }
  .environment-label { display: none; }
  .page-header { align-items: flex-start; }
}
@media (max-width: 980px) {
  .topbar-date { display: none; }
  .page-header { flex-wrap: wrap; }
  .page-actions { justify-content: flex-start; }
  .workspace-footer > span:last-child { display: none; }
}
@media (max-width: 780px) {
  .sidebar { visibility: hidden; transform: translateX(-100%); transition: transform var(--olk-motion-normal) var(--olk-ease), visibility var(--olk-motion-normal); width: min(280px, calc(100vw - 64px)); }
  .workspace { margin-left: 0; }
  .mobile-menu { display: inline-flex; margin-left: -6px; }
  .topbar { padding: 10px 20px; min-height: 66px; justify-content: flex-start; gap: 12px; }
  .topbar-right { margin-left: auto; }
  .menu-open .sidebar { visibility: visible; transform: translateX(0); transition-property: transform; }
  .menu-open .sidebar-overlay { display: block; position: fixed; inset: 0; background: var(--olk-backdrop); border: 0; z-index: 25; }
  #main-content { padding: 26px 20px 32px; }
  .workspace-footer { padding: 16px 20px; }
}
@media (max-width: 480px) {
  .topbar { padding-left: 16px; padding-right: 16px; }
  .breadcrumb > span:first-child, .breadcrumb-divider { display: none; }
  .theme-toggle-label { display: none; }
  .theme-toggle { width: 40px; padding: 8px; }
  .login-toolbar .theme-toggle { width: auto; }
  .login-toolbar .theme-toggle-label { display: inline; }
  #main-content { padding: 24px 16px 30px; }
  .page-header { gap: 18px; margin-bottom: 24px; }
  .page-header h1 { font-size: 1.75rem; }
  .page-actions { width: 100%; }
  .workspace-footer { padding: 16px; }
}