/* ========================================================================== 
   ÎN APROPIERE — HEADER
   --------------------------------------------------------------------------
   Responsabilitate exclusivă: header, brand, navigație și breadcrumbs.
   Rail-ul este definit prin --site-max / --site-gutter din body.css.

   Breakpoints:
   Mobile 0–599 | Tablet 600–899 | Laptop 900–1439 |
   Desktop 1440–1919 | TV 1920+
   ========================================================================== */

/* --------------------------------------------------------------------------
   BASE
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--color-divider);
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.site-header-row,
.breadcrumbs {
  width: 100%;
  max-width: var(--site-max);
  margin-inline: auto;
  padding-inline: var(--site-gutter);
}

.site-header-row {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: var(--space-3);
  padding-block: 11px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin-right: auto;
  color: var(--color-text);
  text-decoration: none;
}

.site-brand svg { flex: none; }

.site-brand span {
  overflow: hidden;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: var(--font-heading-weight);
  letter-spacing: -0.01em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
}

.nav a {
  color: inherit;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-nav {
  flex: none;
  gap: 12px;
}

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

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 6px;
  overflow-x: auto;
  padding-top: 0;
  padding-bottom: var(--space-2);
  color: var(--color-neutral-600);
  font-size: 12px;
  scrollbar-width: none;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.breadcrumbs::-webkit-scrollbar { display: none; }
.breadcrumbs a { color: inherit; text-decoration: none; }
.breadcrumbs-current { color: var(--color-text); }
.breadcrumbs-sep { opacity: 0.5; }

@media (hover: hover) and (pointer: fine) {
  .nav a:hover,
  .breadcrumbs a:hover { color: var(--color-accent); }
}

/* --------------------------------------------------------------------------
   MOBILE — 0–599px
   -------------------------------------------------------------------------- */
@media (max-width: 599px) {
  .site-header-row {
    gap: 10px;
    padding-block: 10px;
  }

  .site-brand span { font-size: 17px; }
  .site-nav { gap: 12px; }
  .site-nav a { font-size: 10.5px; }
  .breadcrumbs { font-size: 11px; }
}

/* --------------------------------------------------------------------------
   TABLET — 600–899px
   -------------------------------------------------------------------------- */
@media (min-width: 600px) and (max-width: 899px) {
  .site-header-row {
    gap: var(--space-4);
    padding-block: 12px;
  }

  .site-brand span { font-size: 18px; }
  .site-nav { gap: var(--space-4); }
  .site-nav a { font-size: 11.5px; letter-spacing: 0.08em; }
  .breadcrumbs { font-size: 12px; }
}

/* --------------------------------------------------------------------------
   LAPTOP — 900–1439px
   -------------------------------------------------------------------------- */
@media (min-width: 900px) and (max-width: 1439px) {
  .site-header-row {
    gap: var(--space-4);
    padding-block: var(--space-3);
  }

  .site-brand span { font-size: 19px; }
  .site-nav { gap: var(--space-4); }
  .site-nav a { font-size: 12px; letter-spacing: 0.09em; }

  .breadcrumbs {
    flex-wrap: wrap;
    overflow-x: visible;
    white-space: normal;
  }
}

/* --------------------------------------------------------------------------
   DESKTOP — 1440–1919px
   -------------------------------------------------------------------------- */
@media (min-width: 1440px) and (max-width: 1919px) {
  .site-header-row {
    gap: var(--space-4);
    padding-block: var(--space-3);
  }

  .site-brand span { font-size: 19px; }
  .site-nav { gap: var(--space-4); }
  .site-nav a { font-size: 12px; letter-spacing: 0.09em; }

  .breadcrumbs {
    flex-wrap: wrap;
    overflow-x: visible;
    white-space: normal;
  }
}

/* --------------------------------------------------------------------------
   TV / LARGE DESKTOP — 1920px+
   -------------------------------------------------------------------------- */
@media (min-width: 1920px) {
  .site-header-row {
    gap: var(--space-5);
    padding-block: 16px;
  }

  .site-brand span { font-size: 20px; }
  .site-nav { gap: var(--space-5); }
  .site-nav a { font-size: 13px; letter-spacing: 0.09em; }

  .breadcrumbs {
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 10px;
    font-size: 13px;
    white-space: normal;
  }
}