/* Single-reader shell: content changes without changing the site surface. */
#app-reader[hidden] { display: none; }
.app-reader-bar {
  position: sticky;
  z-index: 30;
  top: 66px;
  border-bottom: 1px solid var(--border);
  background: rgba(29, 29, 31, 0.9);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  color: #f5f5f7;
}
.app-reader-bar .container { display: flex; min-height: 54px; align-items: center; justify-content: space-between; gap: 18px; }
.app-reader-location { display: flex; align-items: center; gap: 10px; font: 12px var(--font-mono); }
.app-reader-location strong { color: #2997ff; letter-spacing: .08em; }
.app-reader-home { color: #f5f5f7; border-bottom: 1px solid #2997ff; padding: 4px 0; font: 12px var(--font-mono); }
.app-reader-home:hover { color: #2997ff; }
#app-content { min-height: calc(100vh - 120px); }
#app-content > .container { padding-bottom: 82px; }
#app-content > .lab-shell { margin-top: 42px; }
.app-loading,
.app-load-error {
  width: min(var(--container), calc(100% - 48px));
  margin: 72px auto;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}
.app-loading { color: var(--muted); font: 13px var(--font-mono); }
.app-load-error h2 { margin: 0 0 10px; font-family: var(--font-display); }
.app-load-error p { color: var(--fg-2); }
.app-load-error a { color: var(--accent); text-decoration: underline; }

.archive-reader { width: min(1040px, calc(100% - 48px)); margin: 0 auto; padding: 58px 0 88px; }
.archive-reader > header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; align-items: end; margin-bottom: 44px; padding-bottom: 26px; border-bottom: 1px solid var(--border-strong); }
.archive-reader > header h1 { font: clamp(38px, 6vw, 68px)/1.05 var(--font-display); letter-spacing: -0.03em; }
.archive-reader > header p { max-width: 44ch; color: var(--muted); }
.archive-chapter { padding: 50px 0; border-top: 1px solid var(--border); }
.archive-chapter:first-of-type { border-top: 0; }
.archive-chapter > main { max-width: none; }
.archive-chapter h1 { margin: 0 0 24px; font: clamp(32px, 4.5vw, 54px)/1.08 var(--font-display); letter-spacing: -0.025em; }
.archive-chapter h2 { margin: 38px 0 12px; font: clamp(25px, 3vw, 38px)/1.15 var(--font-display); }
.archive-chapter h3 { margin: 28px 0 10px; font-size: 20px; }
.archive-chapter p { max-width: 66ch; margin: 12px 0; color: var(--fg-2); }
.archive-chapter ul, .archive-chapter ol { max-width: 66ch; padding-left: 22px; color: var(--fg-2); }
.archive-chapter li + li { margin-top: 8px; }
.archive-chapter pre { max-width: 100%; overflow: auto; padding: 18px; border-radius: var(--radius-sm); background: #1d1d1f; color: #f5f5f7; }
.archive-chapter img { margin: 20px 0; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); }
.archive-chapter button,
.archive-chapter [role="tablist"],
.archive-chapter .topnav,
.archive-chapter .studio-intro,
.archive-chapter .comic-wipe,
.archive-chapter .cursor-trail { display: none !important; }
.archive-chapter .container { max-width: 100%; padding: 0; }

body[data-app-view]:not([data-app-view="home"]) #home-screen { display: none; }
body[data-app-view]:not([data-app-view="home"]) .site-footer { margin-top: 0; }
.topnav .nav-links a[aria-current="page"] { color: #fff; background: var(--accent); }

@media (max-width: 560px) {
  .app-reader-bar { top: 91px; }
  .app-reader-bar .container { min-height: 48px; padding-inline: 18px; }
  .app-reader-location { font-size: 10px; }
  .archive-reader { width: min(100% - 36px, 1040px); padding-top: 36px; }
  .archive-reader > header { grid-template-columns: 1fr; gap: 12px; margin-bottom: 30px; }
}