.proof-card {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-cream);
  color: var(--color-ink);
  position: relative;
  overflow: hidden;
}
.proof-card::after {
  content: "SHEET → SITE → TEACHING TUESDAY";
  position: absolute;
  right: -1.5rem;
  bottom: 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-2xl);
  opacity: .08;
  transform: rotate(-5deg);
}
.dark-link { color: var(--color-primary-dark); }
.hero-hosts {
  margin: var(--space-5) 0 0;
  color: var(--color-primary-light);
  font-size: var(--text-sm);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero-hosts strong { color: var(--color-accent); }
@media (min-width: 48rem) {
  .proof-card { grid-template-columns: 1.1fr .9fr; padding: var(--space-12); }
}