/* Application shell: dense enterprise workspace with a fixed navigation rail. */
.app-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  background: var(--surface-page);
}

.sidebar {
  position: sticky;
  top: 0;
  z-index: calc(var(--z-sticky) + 2);
  display: flex;
  width: var(--sidebar-width);
  height: 100vh;
  height: 100dvh;
  min-height: 36rem;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid rgb(60 60 67 / 10%);
  background: rgb(246 246 248 / 78%);
  -webkit-backdrop-filter: blur(36px) saturate(180%);
  backdrop-filter: blur(36px) saturate(180%);
  box-shadow: 1px 0 18px rgb(0 0 0 / 3%);
}

.brand-lockup {
  display: grid;
  min-height: var(--header-height);
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.625rem;
  padding: 0 1rem;
  border-bottom: 1px solid rgb(60 60 67 / 9%);
}

.brand-mark {
  display: block;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 7px rgb(0 0 0 / 12%);
}

.brand-mark img { width: 100%; height: 100%; }

.brand-copy {
  display: grid;
  min-width: 0;
  line-height: 1.1;
}

.brand-copy strong {
  overflow: hidden;
  color: var(--text-primary);
  font-size: 0.9375rem;
  letter-spacing: -0.015em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-copy small {
  margin-top: 0.25rem;
  color: var(--text-tertiary);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
}

.prototype-tag {
  border: 0;
  border-radius: var(--radius-pill);
  background: rgb(0 122 255 / 10%);
  color: var(--color-brand-600);
  font-family: var(--font-data);
  font-size: 0.5625rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.06em;
  line-height: 1.75;
  padding-inline: 0.35rem;
}

.main-nav {
  flex: 1 1 auto;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0.875rem 0.625rem 1rem;
}

.nav-eyebrow {
  padding: 0 0.625rem 0.375rem;
  color: var(--text-tertiary);
  font-size: 0.625rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-transform: uppercase;
}

.nav-eyebrow--spaced { margin-top: 1.25rem; }

.nav-item {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 2.5rem;
  grid-template-columns: 1.25rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.625rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  padding: 0.25rem 0.625rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-align: left;
  transition: background-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}

.nav-item + .nav-item { margin-top: 0.125rem; }

.nav-item:hover {
  background: rgb(60 60 67 / 7%);
  color: var(--text-primary);
}

.nav-item.is-active {
  background: rgb(0 122 255 / 11%);
  color: var(--color-brand-700);
  font-weight: var(--font-weight-semibold);
}

.nav-item:active { transform: scale(0.97); }

.nav-item .icon {
  width: 1.125rem;
  height: 1.125rem;
  stroke-width: 1.8;
}

.nav-count {
  min-width: 1.25rem;
  border-radius: var(--radius-pill);
  background: rgb(255 255 255 / 72%);
  color: var(--text-brand);
  font-family: var(--font-data);
  font-size: 0.625rem;
  line-height: 1.25rem;
  text-align: center;
}

.status-pip {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-teal-500);
}

.status-pip--warn { background: var(--color-amber-500); }

.sidebar-foot {
  display: grid;
  flex: 0 0 auto;
  gap: 0.5rem;
  padding: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

.system-mini {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: rgb(255 255 255 / 54%);
  padding: 0.625rem;
}

.system-mini__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-secondary);
  font-size: 0.6875rem;
}

.system-mini__head strong { color: var(--text-primary); }

.system-mini p {
  margin-top: 0.35rem;
  font-size: 0.625rem;
  line-height: 1.45;
}

.live-dot {
  width: 0.4375rem;
  height: 0.4375rem;
  border: 2px solid var(--color-teal-100);
  border-radius: 50%;
  background: var(--color-teal-500);
  box-sizing: content-box;
}

.profile-mini {
  display: grid;
  width: 100%;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.625rem;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  padding: 0.4rem;
  text-align: left;
}

.profile-mini:hover { background: rgb(60 60 67 / 7%); }
.profile-mini:active { transform: scale(0.97); }

.profile-mini > span:not(.avatar) {
  display: grid;
  min-width: 0;
}

.profile-mini strong,
.profile-mini small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.profile-mini strong { font-size: 0.75rem; }
.profile-mini small { color: var(--text-tertiary); font-size: 0.625rem; }
.profile-mini .icon { width: 0.875rem; height: 0.875rem; color: var(--text-tertiary); }

.avatar {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--color-brand-100);
  color: var(--color-brand-700);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}

.workspace {
  min-width: 0;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  display: grid;
  min-height: var(--header-height);
  grid-template-columns: minmax(10rem, 1fr) minmax(18rem, 34rem) minmax(10rem, 1fr);
  align-items: center;
  gap: 1.25rem;
  border-bottom: 1px solid rgb(60 60 67 / 8%);
  background: rgb(250 250 252 / 72%);
  padding: 0 1.5rem;
  -webkit-backdrop-filter: blur(24px) saturate(170%);
  backdrop-filter: blur(24px) saturate(170%);
  box-shadow: 0 7px 18px -16px rgb(0 0 0 / 42%);
}

.topbar__context {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.75rem;
}

.topbar__context > div { display: grid; min-width: 0; }
.topbar__context small { color: var(--text-tertiary); font-size: 0.625rem; line-height: 1.2; }
.topbar__context strong { overflow: hidden; font-size: var(--font-size-md); text-overflow: ellipsis; white-space: nowrap; }

.global-search {
  display: grid;
  width: 100%;
  min-height: 2.35rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.625rem;
  border: 1px solid rgb(60 60 67 / 10%);
  border-radius: var(--radius-sm);
  background: rgb(118 118 128 / 10%);
  color: var(--text-tertiary);
  padding: 0 0.65rem;
  font-size: var(--font-size-sm);
  text-align: left;
  box-shadow: inset 0 1px 1px rgb(0 0 0 / 3%);
  transition: background-color var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
}

.global-search:hover { border-color: rgb(60 60 67 / 14%); background: rgb(118 118 128 / 13%); }
.global-search:active { transform: scale(0.99); }
.global-search .icon { width: 1rem; height: 1rem; }
.global-search kbd,
.command-panel kbd {
  border: 1px solid var(--border-subtle);
  border-bottom-color: var(--border-strong);
  border-radius: 0.35rem;
  background: rgb(255 255 255 / 66%);
  color: var(--text-secondary);
  font-size: 0.625rem;
  line-height: 1.5;
  padding-inline: 0.35rem;
}

.topbar__actions {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

.demo-data-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-tertiary);
  font-size: 0.6875rem;
  white-space: nowrap;
}

.demo-data-label i {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--color-amber-500);
}

.icon-button,
.avatar--button {
  position: relative;
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid transparent;
  background: transparent;
}

.icon-button { border-radius: var(--radius-md); }
.icon-button:hover { border-color: transparent; background: rgb(118 118 128 / 10%); }
.icon-button:active,
.avatar--button:active { transform: scale(0.97); }
.icon-button .icon { width: 1.125rem; height: 1.125rem; }
.avatar--button { border: 0; border-radius: 50%; }
.notification-button > span {
  position: absolute;
  top: -0.05rem;
  right: -0.05rem;
  min-width: 0.95rem;
  border: 2px solid var(--surface-page);
  border-radius: var(--radius-pill);
  background: var(--color-danger-500);
  color: var(--text-inverse);
  font-family: var(--font-data);
  font-size: 0.5rem;
  line-height: 0.8rem;
  text-align: center;
}

.mobile-menu-button { display: none; }

.view-root {
  width: 100%;
  max-width: calc(var(--content-max) + 3rem);
  min-height: calc(100vh - var(--header-height));
  margin: 0 auto;
  padding: 1.5rem;
}

.site-contact {
  display: flex;
  width: 100%;
  max-width: calc(var(--content-max) + 3rem);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  margin: 0 auto;
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-5) 1.5rem var(--space-8);
}

.site-contact__copy { display: grid; gap: 0.2rem; }
.site-contact__copy strong { font-size: var(--font-size-sm); }
.site-contact__copy small { color: var(--text-tertiary); font-size: var(--font-size-xs); }
.site-contact__link {
  display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  border-radius: var(--radius-pill);
  background: rgb(0 122 255 / 8%);
  color: var(--text-brand);
  padding: 0.4rem 0.8rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  transition: background-color var(--duration-fast) var(--ease-standard), transform 80ms ease-out;
}

.site-contact__link:hover { background: rgb(0 122 255 / 12%); color: var(--text-brand); }
.site-contact__link:active { transform: scale(0.98); }

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: calc(var(--z-modal) + 20);
  border-radius: var(--radius-md);
  background: var(--color-ink-950);
  color: var(--text-inverse);
  padding: 0.5rem 0.75rem;
  transform: translateY(-200%);
}

.skip-link:focus { color: var(--text-inverse); transform: translateY(0); }

.mobile-scrim,
.drawer-scrim {
  position: fixed;
  inset: 0;
  visibility: hidden;
  background: rgb(0 0 0 / 28%);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-standard), visibility var(--duration-base) var(--ease-standard);
}

.mobile-scrim { z-index: calc(var(--z-overlay) - 2); }
.drawer-scrim { z-index: calc(var(--z-overlay) + 1); }

@media (prefers-reduced-transparency: reduce) {
  .sidebar,
  .topbar {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .sidebar { background: #f3f3f5; }
  .topbar { background: #fafafa; }
  .system-mini,
  .global-search { background: var(--surface-raised); }
}

@media (prefers-contrast: more) {
  .sidebar,
  .topbar { border-color: var(--border-strong); background: rgb(255 255 255 / 96%); }
  .nav-item.is-active { outline: 2px solid var(--color-brand-700); outline-offset: -2px; }
  .global-search { border-color: var(--border-strong); background: var(--surface-raised); }
}