/* ============================================================
   header.css — Header nav button (Sports Cards / Diecast Trucks)
   Shared by all four pages. Load after styles.css (and after
   cards.css on the card pages). Does not modify styles.css.
   ============================================================ */

.header-nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin: 0 6px;
}
.header-nav-link {
  font-family: var(--font-ui);
  font-size: .838rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 5px 13px;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.header-nav-link:hover {
  color: var(--yellow);
  border-color: var(--yellow-dark);
}

/* Tablets and phones: the item count already appears in the
   results bar, so it leaves the header to make room */
@media (max-width: 720px) {
  .header-count { display: none; }
  .header-nav { margin: 0 0 0 auto; }
}

/* Phones: tighter spacing; logo font size scales down with the
   screen width (1.45rem at 390px+, down to 1.2rem at 320px) */
@media (max-width: 600px) {
  .site-header { padding: 0 14px; gap: 10px; }
  .logo-primary { font-size: clamp(1.2rem, 6vw + .05rem, 1.45rem); }
  .header-nav-link {
    font-size: .768rem;
    letter-spacing: .08em;
    padding: 5px 9px;
  }
}

/* Very narrow phones (≤ 360px) */
@media (max-width: 360px) {
  .site-header { padding: 0 10px; gap: 8px; }
  .header-nav-link { letter-spacing: .05em; padding: 4px 7px; }
}