.app-shell { min-height: 100vh; padding-bottom: 116px; }
.app-header { position: sticky; top: 0; z-index: 20; background: var(--paper); border-bottom: var(--border); }
.app-header-inner { max-width: 1100px; margin: 0 auto; padding: 14px 18px 12px; }
.brand-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand-line { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; min-width: 0; }
.brand { font-weight: 900; letter-spacing: -.035em; font-size: 1rem; }
.brand span { color: var(--purple); }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; flex: 0 0 auto; }
.header-button-group { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.save-status { text-align: right; flex: 0 0 auto; }
.progress-track { height: 10px; margin-top: 11px; border: 2px solid var(--ink); border-radius: 999px; overflow: hidden; background: var(--white); }
.progress-fill { height: 100%; background: var(--yellow); transition: width .25s ease; }
.page { width: min(100%, var(--content-width)); margin: 0 auto; padding: 34px 18px 44px; }
.page-wide { width: min(100%, 900px); }
.page-intro { margin-bottom: 26px; }
.page-intro .eyebrow { margin-bottom: 10px; }
.bottom-bar { position: fixed; inset: auto 0 0; z-index: 30; background: var(--white); border-top: var(--border); padding: 12px 14px max(12px, env(safe-area-inset-bottom)); }
.bottom-bar-inner { max-width: 1060px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.35fr; gap: 12px; }
.card-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.character-list { display: grid; gap: 28px; }
.preview-stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; }
.preview-stack > * { width: 100%; min-width: 0; }

@media (max-width: 520px) {
  .brand-row { align-items: flex-start; }
  .header-actions { align-items: flex-end; flex-direction: column; gap: 6px; }
  .header-button-group { gap: 6px; }
  .save-status { max-width: 100px; font-size: .72rem; }
}

@media (min-width: 760px) {
  .app-header-inner { padding-inline: 28px; }
  .page { padding: 56px 28px 70px; }
  .bottom-bar { padding-inline: 28px; }
  .card-grid.two-up { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .character-list { gap: 36px; }
}

.app-shell.has-active-promotion { padding-bottom: 176px; }
@media (max-width: 520px) {
  .promotion-dock { bottom: calc(82px + env(safe-area-inset-bottom)); }
}