.app-page {
  width: min(100% - 2rem, 1100px);
  margin-inline: auto;
}

.app-page--demo {
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}

.demo-divider {
  margin: 3rem auto;
  width: min(100%, 72rem);
  border: 0;
  border-top: 1px solid rgb(26 32 64 / 10%);
}

.demo-intro,
.demo-showcase,
.demo-features {
  width: min(100%, 72rem);
  margin-inline: auto;
}

.demo-intro {
  margin-bottom: 2rem;
  text-align: center;
}

.demo-intro__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgb(31 58 153 / 8%);
  color: var(--color-primary, #1f3a99);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.demo-intro__title,
.demo-showcase__title,
.demo-features__title {
  margin: 1rem 0 0.75rem;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.06;
  color: var(--color-text, #1a2040);
}

.demo-intro__desc,
.demo-showcase__desc,
.demo-features__title + p,
.sc-sum-desc {
  color: var(--color-text-muted, #5a6080);
  line-height: 1.7;
}

.demo-two-col,
.sc-player-split {
  display: grid;
  gap: 1.25rem;
}

.demo-two-col > div,
.sc-player-main,
.sc-transcript-panel,
.demo-results,
.demo-upgrade {
  border: 1px solid rgb(26 32 64 / 10%);
  border-radius: 1.25rem;
  background: rgb(255 255 255 / 76%);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-soft);
}

.demo-two-col > div,
.sc-player-main,
.sc-transcript-panel {
  padding: 1.25rem;
}

.demo-dz,
#drop-zone {
  display: grid;
  place-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 2rem 1rem;
  border-radius: 1rem;
  border: 1px dashed rgb(31 58 153 / 24%);
  background: linear-gradient(180deg, rgb(31 58 153 / 4%), rgb(200 140 0 / 4%));
}

.demo-dz__label,
.demo-dz__hint {
  margin: 0;
}

.demo-stages,
.demo-tier-grid,
.showcase-stats {
  display: grid;
  gap: 1rem;
}

.stage-card,
.tier-card,
.showcase-stat {
  border: 1px solid rgb(26 32 64 / 8%);
  border-radius: 1rem;
  background: #fff;
}

.demo-tier-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.tier-card {
  padding: 1.2rem;
}

.tier-card__features {
  display: grid;
  gap: 0.55rem;
  padding-left: 0;
  list-style: none;
}

.tier-card__features li {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
}

.showcase-stats {
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
}

.showcase-stat {
  padding: 1rem;
  text-align: center;
}

.stat-num {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary, #1f3a99);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted, #5a6080);
}

@media (width >= 960px) {
  .demo-two-col,
  .sc-player-split {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }
}

/* ── Sample Picker ──────────────────────────────────────────── */

.demo-samples {
  max-width: 72rem;
  margin: 0 auto 1.5rem;
}

.demo-samples__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted, #5a6080);
  margin-bottom: 0.75rem;
}

.demo-samples__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.demo-sample-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 1rem 0.75rem;
  border: 1px solid rgb(31 58 153 / 15%);
  border-radius: 0.75rem;
  background: rgb(255 255 255 / 80%);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  font-family: inherit;
  text-align: center;
}

.demo-sample-btn:hover {
  border-color: var(--color-primary, #1f3a99);
  box-shadow: 0 2px 8px rgb(31 58 153 / 12%);
  transform: translateY(-1px);
}

.demo-sample-btn:active {
  transform: translateY(0);
}

.demo-sample-btn.loading {
  border-color: var(--color-primary, #1f3a99);
  opacity: 0.7;
  pointer-events: none;
}

.demo-sample-btn span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text, #1a2040);
}

.demo-sample-btn small {
  font-size: 0.72rem;
  color: var(--color-text-muted, #5a6080);
}

/* ── Per-Stage Progress Bars ────────────────────────────────── */

.stage-card {
  position: relative;
  overflow: hidden;
}

.stage-card .stage-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--color-primary, #1f3a99);
  border-radius: 0 0 1rem 1rem;
  width: 0;
  transition: width 0.3s ease;
}

.stage-card.processing {
  border-color: var(--color-primary, #1f3a99);
}

.stage-card.complete {
  border-color: #22c55e;
}

.stage-card.complete .demo-stage-num {
  background: #22c55e;
  color: #fff;
}

/* ── Save Results CTA ───────────────────────────────────────── */

.demo-save-cta {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  border: 1px solid rgb(31 58 153 / 15%);
  border-radius: 1rem;
  background: linear-gradient(135deg, rgb(31 58 153 / 5%), rgb(34 197 94 / 5%));
  margin-top: 1rem;
  animation: demo-fade-in 0.4s ease;
}

.demo-save-cta__icon {
  flex-shrink: 0;
  color: var(--color-primary, #1f3a99);
}

.demo-save-cta__body h4 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--color-text, #1a2040);
}

.demo-save-cta__body p {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-muted, #5a6080);
  line-height: 1.5;
}

.demo-save-cta__btns {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@keyframes demo-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}