/* ========================================
   HEADER
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 12px 24px 0;
}

.header-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  background: rgb(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-md);
  padding: 12px 28px;
  box-shadow: 0 2px 24px rgb(0, 0, 0, 0.06);
  transition:
    border-radius 0.3s,
    box-shadow 0.3s;
}

.header-logo img {
  height: 36px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  min-width: 0;
  position: relative;
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-center .nav-link {
  padding: 8px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-heading);
  border-radius: var(--radius-pill);
  transition:
    color 0.2s,
    background 0.2s;
}

.nav-center .nav-link:hover,
.nav-center .nav-link.active {
  color: var(--primary-blue);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-right .nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-heading);
  transition: color 0.2s;
}

.nav-right .nav-link:hover {
  color: var(--primary-blue);
}

.nav-right .btn {
  padding: 10px 24px;
  font-size: 0.88rem;
}

@media (width >= 769px) {
  .header-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    column-gap: 24px;
  }

  .header-nav {
    grid-column: 2 / 3;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    justify-content: stretch;
    min-width: 0;
    position: relative;
  }

  .nav-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    min-width: 0;
    padding-right: 0;
  }

  .nav-right-desktop {
    justify-self: end;
  }
}

/* Hamburger */
.hamburger {
  display: none;
  padding: 4px;
  z-index: 1001;
}

.hamburger img {
  width: 28px;
  height: 28px;
}

.hamburger-close {
  display: none;
}

/* Mobile header buttons — hidden on desktop */
.nav-right-mobile {
  display: none;
}

/* Mobile nav open state */
.site-header.nav-open .hamburger-open {
  display: none;
}

.site-header.nav-open .hamburger-close {
  display: block;
}