.util {
  background: #1b2230;
  color: #d7dde8;
  font-size: 0.78rem;
  font-weight: 550;
}

.util-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1.25rem;
  padding: 0.45rem 0;
}

.util a { color: #9ec2ff; font-weight: 700; }
.util a:hover { color: #fff; }

.util strong { color: #fff; font-weight: 700; }

.mast {
  background: var(--white);
  box-shadow: 0 1px 0 rgba(21, 25, 34, 0.04);
}

.mast-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.mast-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 750;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}

.mast-brand:hover { color: var(--ink); }

.mast-mark {
  width: 2rem;
  height: 2rem;
  display: block;
}

.mast-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.15rem;
}

.mast-nav a {
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

.mast-nav a[aria-current="page"],
.mast-nav a:hover {
  color: var(--accent);
}

.mast-toggle {
  display: none;
  background: var(--gray-100);
  border: 0;
  border-radius: 0.55rem;
  padding: 0.55rem 0.7rem;
  color: var(--ink);
}

@media (max-width: 860px) {
  .mast-toggle { display: inline-flex; }
  .mast-nav {
    display: none;
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 6.6rem;
    background: var(--white);
    padding: 1rem;
    border-radius: var(--r);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    z-index: 40;
  }
  .mast-nav.is-open { display: flex; }
  .mast { position: relative; }
}