/* P.H. COMPUTER — delikatne ulepszenie istniejącego nagłówka */
.ph-header {
  --ph-header-blue: #0a3e98;
  --ph-header-navy: #082967;
  --ph-header-line: #e8edf5;
  --ph-header-muted: #6d7890;
  transition: box-shadow .22s ease, transform .22s ease;
}

.ph-header .header-top {
  min-height: 92px;
  gap: 40px;
}

.ph-header .brand img {
  width: 315px;
}

.ph-header .contact-item {
  border-radius: 12px;
  transition: background-color .18s ease, transform .18s ease;
}

.ph-header .contact-item:hover,
.ph-header .contact-item:focus-visible {
  background: #f7faff;
  transform: translateY(-1px);
}

.ph-header .contact-item .contact-icon {
  width: 38px;
  height: 38px;
  background: #f0f5ff;
  box-shadow: inset 0 0 0 1px #e2eafa;
}

.ph-header .main-nav {
  border-top-color: var(--ph-header-line);
}

.ph-header .nav-row {
  min-height: 68px;
}

.ph-header .main-nav a {
  position: relative;
  border-bottom: 0;
  transition: color .18s ease, background-color .18s ease;
}

.ph-header .main-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(90deg, #0a3e98, #2a71dc);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}

.ph-header .main-nav a:hover,
.ph-header .main-nav a:focus-visible,
.ph-header .main-nav a.is-active {
  color: var(--ph-header-blue);
  background: linear-gradient(180deg, transparent, rgba(10,62,152,.035));
}

.ph-header .main-nav a:hover::after,
.ph-header .main-nav a:focus-visible::after,
.ph-header .main-nav a.is-active::after {
  transform: scaleX(1);
}

.ph-header .main-nav a.is-active strong {
  color: var(--ph-header-blue);
}

.ph-header .category-nav strong,
.ph-header .nav-secondary strong {
  font-weight: 700;
}

.ph-header .category-nav small {
  color: var(--ph-header-muted);
}

.ph-header .nav-secondary {
  border-left-color: var(--ph-header-line);
}

.ph-header .search-link {
  align-self: center;
  width: 44px;
  min-width: 44px;
  height: 44px;
  margin: 0 5px 0 8px;
  padding: 11px;
  border: 1px solid #dce5f3;
  border-radius: 50%;
  color: var(--ph-header-navy);
  background: #f7faff;
  box-shadow: 0 4px 14px rgba(8,41,103,.06);
}

.ph-header .search-link::after {
  display: none;
}

.ph-header .search-link svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
}

.ph-header .search-link:hover,
.ph-header .search-link:focus-visible,
.ph-header .search-link.is-active {
  color: #fff;
  background: linear-gradient(135deg, #0a3e98, #0d55c8);
  border-color: transparent;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(10,62,152,.22);
}

.ph-header.is-scrolled {
  box-shadow: 0 8px 28px rgba(8,41,103,.13);
}

.ph-header a:focus-visible,
.ph-header button:focus-visible {
  outline: 3px solid rgba(35,111,218,.3);
  outline-offset: 3px;
}

@media (max-width: 1280px) {
  .ph-header .header-top { min-height: 84px; }
  .ph-header .brand img { width: 285px; }
  .ph-header .nav-row { min-height: 64px; }
}

@media (max-width: 1100px) {
  .ph-header .header-top { min-height: 74px; }
  .ph-header .main-nav a::after { left: 8px; right: 8px; }
  .ph-header .search-link { margin: 6px auto; }
}

@media (max-width: 650px) {
  .ph-header .brand img { width: 235px; }
  .ph-header .header-top { min-height: 70px; }
}

@media (prefers-reduced-motion: reduce) {
  .ph-header,
  .ph-header * { transition: none !important; }
}