/* Page chrome outside the shell grid: session banner, login page.
 * The shell itself (sidebar, topbar, content column) is layout/app-shell.css. */

@layer components {
/* Fixed banner at the top (session expired, server offline, update ready). */
.session-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-banner);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-10) var(--space-lg);
  padding-top: calc(var(--space-10) + env(safe-area-inset-top));
  background: var(--color-err-bg);
  color: var(--color-err-text);
  border-bottom: 2px solid var(--color-err-border);
  font-size: var(--font-size-sm);
  font-weight: var(--fw-semibold);
  box-shadow: var(--shadow-sm);
}
.session-banner-text { flex: 0 1 auto; }
.session-banner-btn {
  flex: 0 0 auto;
  padding: var(--space-5) var(--space-14);
  background: var(--color-err-text);
  color: var(--color-surface);
  border: none;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font: inherit;
  font-weight: var(--fw-bold);
  cursor: pointer;
}
.session-banner-btn:hover { background: var(--color-err-hover); }

/* Softer variant for a non-fatal state (offline). */
.session-banner--offline {
  background: var(--color-warn-bg);
  color: var(--color-warn-text);
  border-bottom: 2px solid var(--color-warn-text);
}

/* Login page (public/login.html): one centred card on a soft brand glow. */
.login-shell {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: var(--space-xl) max(var(--page-pad-x), env(safe-area-inset-right))
    var(--space-xl) max(var(--page-pad-x), env(safe-area-inset-left));
  background: radial-gradient(ellipse 80% 50% at 50% 0%, var(--color-accent-bg), transparent 70%);
}
.login-shell > .card {
  width: 100%;
  max-width: 25rem;
  padding: var(--space-2xl) var(--space-xl);
  box-shadow: var(--shadow-md);
}
.login-shell .card-header {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  border-bottom: none;
  padding-bottom: 0;
}
.login-lead {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}
.login-btn { width: 100%; justify-content: center; }
}