.app-shell {
  width: min(100% - 2rem, var(--shell-max-width));
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-7);
}

.hero {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-5);
  padding: var(--space-6);
  border: 1px solid rgba(14, 116, 144, 0.12);
  border-radius: var(--radius-lg);
  background: var(--gradient-hero);
  box-shadow: var(--shadow-sm);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: var(--space-3);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.7);
  color: var(--color-primary-strong);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-3);
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(14, 116, 144, 0.12);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.7);
  color: var(--color-primary-strong);
  font-size: 0.92rem;
  font-weight: 800;
}

.brand-mark__icon {
  display: block;
  flex: 0 0 1.35rem;
  width: 1.35rem;
  min-width: 0;
  max-width: 1.35rem;
  height: 1.35rem;
  max-height: 1.35rem;
  object-fit: contain;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 3vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero__copy {
  margin-top: var(--space-3);
  max-width: 44rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.hero__meta {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  column-gap: var(--space-5);
  margin-top: var(--space-6);
  align-items: start;
}

.workspace__main {
  grid-column: 1;
  align-content: start;
}

.workspace__main > #graderCard,
.workspace__main > #analysisWorkspace,
.workspace__main > #resetWorkspacePanel {
  width: 100%;
}

.workspace > #workspaceMonitor {
  grid-column: 2;
}

.workspace:not(.workspace--monitor-visible) > .workspace__main {
  grid-column: 1 / -1;
}

.workspace.workspace--monitor-only {
  grid-template-columns: 1fr;
}

.workspace.workspace--monitor-only > .workspace__main {
  display: none;
}

.workspace.workspace--monitor-only > #workspaceMonitor {
  grid-column: 1 / -1;
}

.stack {
  display: grid;
  gap: var(--space-5);
}

.section-block {
  display: grid;
  gap: var(--space-4);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.footer-bar {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

.footer-note {
  justify-self: start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  justify-self: center;
  width: 22rem;
  overflow: hidden;
}

.footer-brand__logo {
  display: block;
  width: 22rem;
  min-width: 0;
  max-width: 22rem;
  height: auto;
  max-height: 6.4rem;
  object-fit: contain;
  opacity: 0.72;
}

.footer-credit {
  justify-self: end;
  text-align: right;
}

@media (max-width: 980px) {
  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

  .workspace__main,
  .workspace > #workspaceMonitor {
    grid-column: 1;
  }

  .workspace.workspace--monitor-only > .workspace__main {
    display: none;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 1.2rem, var(--shell-max-width));
    padding-top: var(--space-5);
  }

  .hero {
    padding: var(--space-5);
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .footer-bar {
    align-items: flex-start;
    grid-template-columns: 1fr;
  }

  .footer-brand,
  .footer-credit,
  .footer-note {
    justify-self: start;
    text-align: left;
  }
}