html {
  font-size: var(--fs-base);
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

.app {
  min-height: 100vh;
  display: flex;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: var(--z-drawer);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.sidebar-brand {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  flex: none;
}

.brand-mark svg {
  width: 15px;
  height: 15px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-weight: 600;
  font-size: var(--fs-base);
  line-height: 1.2;
  white-space: nowrap;
}

.brand-sub {
  font-size: 11px;
  color: var(--color-muted);
  line-height: 1.2;
  white-space: nowrap;
}

.sidebar-close {
  margin-left: auto;
  display: none;
}

.sidebar-nav {
  padding: var(--space-3) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  overflow-y: auto;
}

.nav-section {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-faint);
  padding: 6px 10px 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 34px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-2);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: background-color var(--dur), color var(--dur);
}

.nav-link svg {
  width: 16px;
  height: 16px;
  flex: none;
  color: var(--color-faint);
}

.nav-link:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.nav-link.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.nav-link.is-active svg {
  color: var(--color-primary);
}

.nav-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-ring);
}

.sidebar-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3);
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.user-chip > div {
  min-width: 0;
}

.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 600;
  display: grid;
  place-items: center;
  flex: none;
}

.user-name {
  font-size: var(--fs-sm);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: 11px;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Main column */
.main {
  flex: 1;
  min-width: 0;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: var(--z-topbar);
  height: var(--topbar-h);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-4);
}

.topbar-title {
  font-size: var(--fs-md);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.last-updated {
  font-size: var(--fs-xs);
  color: var(--color-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.last-updated .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  flex: none;
}

.last-updated.is-cache .dot {
  background: var(--color-warning);
}

.last-updated.is-idle .dot {
  background: var(--color-faint);
}

.menu-btn {
  display: none;
}

.content {
  padding: var(--space-5) var(--space-4) var(--space-8);
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--gap);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.page-title {
  font-size: var(--fs-xl);
  font-weight: 600;
  line-height: 1.25;
}

.page-subtitle {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  margin-top: 2px;
}

.page-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}

/* Grids */
.grid {
  display: grid;
  gap: var(--gap);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.42);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur), visibility var(--dur);
}

.mobile-only {
  display: none;
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }

  body.nav-open .sidebar {
    transform: none;
    box-shadow: var(--shadow-lg);
  }

  body.nav-open .nav-overlay {
    opacity: 1;
    visibility: visible;
  }

  body.nav-open {
    overflow: hidden;
  }

  .sidebar-close {
    display: inline-flex;
  }

  .main {
    margin-left: 0;
  }

  .menu-btn {
    display: inline-flex;
  }

  .last-updated .label {
    display: none;
  }

  .content {
    padding: var(--space-4) var(--space-3) var(--space-6);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .desktop-only {
    display: none !important;
  }

  .mobile-only {
    display: block;
  }

  .nav-link,
  .btn,
  .segmented button {
    min-height: 36px;
  }
}

@media (max-width: 560px) {
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .page-title {
    font-size: 18px;
  }

  .topbar {
    padding: 0 var(--space-3);
  }

  .topbar-right {
    gap: var(--space-2);
  }

  .last-updated {
    display: none;
  }
}