/* css/layout.css
   Mobile-first page shell. Every protected page shares this same structure:
   <header class="app-header"> + <main class="app-main"> + <app-bottom-nav>.
*/

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  padding: 0 var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.app-header .store-name {
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-header .header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.app-main {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-4);
}

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}

.auth-card {
  width: 100%;
  max-width: 380px;
}

.auth-card .brand {
  text-align: center;
  margin-bottom: var(--space-5);
}

.auth-card .brand small {
  display: block;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-1);
}

@media (min-width: 720px) {
  .app-main { padding: var(--space-6) var(--space-4); }
}