.case-header,
.case-footer {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
}

.case-header {
  border-bottom: 1px solid var(--border-strong);
  inset: auto;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: var(--z-header);
}

.case-header__inner {
  align-items: center;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  min-height: 76px;
}

.case-brand {
  align-items: center;
  display: inline-flex;
  flex: 0 0 auto;
}

.case-brand img {
  background: transparent;
  border: 0;
  border-radius: 0;
  display: block;
  height: auto;
  max-width: none;
  width: clamp(164px, 15vw, 190px);
}

.case-nav {
  align-items: center;
  display: flex;
  gap: clamp(0.7rem, 1.8vw, 1.5rem);
  margin-left: auto;
}

.case-nav a,
.case-footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.case-nav__link {
  align-items: center;
  display: inline-flex;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  min-height: 44px;
  text-transform: uppercase;
}

.case-nav__link:hover,
.case-footer a:hover { color: var(--text-primary); }

.case-nav__cta {
  align-items: center;
  background: var(--gradient-brand);
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--text-primary) !important;
  display: inline-flex;
  font-size: 0.7rem;
  font-weight: 800;
  justify-content: center;
  letter-spacing: 0.08em;
  min-height: 44px;
  padding: 0.7rem 1rem;
  text-transform: uppercase;
  white-space: nowrap;
}

.case-header a:focus-visible,
.case-footer a:focus-visible {
  outline: 3px solid var(--accent-blue);
  outline-offset: 4px;
}

.case-footer {
  border-top: 1px solid var(--border-strong);
  margin: 0;
  max-width: none;
  padding: 0;
}

.case-footer__inner {
  align-items: center;
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
  min-height: 118px;
  padding-block: 1.5rem;
}

.case-footer__copy {
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.5;
}

.case-footer__links {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: flex-end;
}

.case-footer__links a {
  color: var(--text-primary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.case-footer__linkedin { align-items: center; display: inline-flex; gap: 0.45rem; }
.case-footer__linkedin img { filter: invert(1); height: 18px; width: 18px; }

@media (max-width: 768px) {
  .case-header__inner {
    display: grid;
    gap: 0.35rem 1rem;
    grid-template-areas: "brand cta" "nav nav";
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 116px;
    padding-block: 0.65rem;
  }

  .case-brand { grid-area: brand; }
  .case-brand img { width: 158px; }
  .case-nav { gap: 1rem; grid-area: nav; margin: 0; overflow-x: auto; }
  .case-nav__link { font-size: 0.65rem; min-height: 44px; white-space: nowrap; }
  .case-nav__cta { font-size: 0.64rem; grid-area: cta; min-height: 44px; padding-inline: 0.85rem; }

  .case-footer__inner { align-items: center; flex-direction: column; min-height: 0; padding-block: 2rem; text-align: center; }
  .case-footer__copy { max-width: 520px; }
  .case-footer__links { justify-content: center; }
}

@media (max-width: 430px) {
  .case-nav__visit { display: none; }
}