.collaboration-hero { background: radial-gradient(ellipse at 50% 0, #e3edfc, transparent 65%), var(--color-bg); }
.collaboration-intro { max-width: 940px; text-align: center; }
.collaboration-intro .eyebrow { justify-content: center; }
.collaboration-intro h1 { max-width: 860px; margin-inline: auto; font-size: clamp(2.8rem, 6vw, 4.8rem); }
.collaboration-intro .hero-lead { margin-inline: auto; }
.intro-note { margin: 1.2rem 0 0; font-size: .9rem; }
.collaboration-grid { display: grid; gap: 1.2rem; }
.collaboration-card { padding: 2rem; border: 1px solid var(--color-border); border-top: 3px solid var(--color-primary); border-radius: 20px; background: var(--color-white); }
.card-number { display: inline-block; margin-bottom: 1.5rem; color: var(--color-primary-dark); font-weight: 800; }
.collaboration-card h3 { font-size: 1.4rem; }
.collaboration-card p { margin-bottom: 0; }
.collaboration-about { display: grid; gap: 2rem; }
.about-links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.contact-copy .privacy-note { margin-top: 1.3rem; }
.contact-section { background: linear-gradient(145deg, #f8fafc, #edf3fc); }
@media (min-width: 900px) {
  .header-inner { gap: 2rem; }
  .main-nav { gap: 1.25rem; }
  .collaboration-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .collaboration-about { grid-template-columns: 1fr 1fr; gap: 5rem; }
}