/* Header styles for GrowBusinessPoland */

.gbp-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffff;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(10px);
}

.gbp-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.gbp-header__brand {
  display: flex;
  align-items: center;
}

.gbp-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.gbp-header__logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.7rem;
  background: linear-gradient(135deg, #1d4ed8, #0ea5e9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.03em;
  font-size: 0.9rem;
}

.gbp-header__logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.gbp-header__site-name {
  font-family: "Roboto Slab", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: #0f172a;
}

.gbp-header__tagline {
  font-size: 0.78rem;
  color: #64748b;
}

.gbp-header__nav {
  display: flex;
}

.gbp-header__nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gbp-header__nav-item {
  position: relative;
}

.gbp-header__nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #0f172a;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

.gbp-header__nav-link:focus-visible {
  outline: 2px solid #0f766e;
  outline-offset: 2px;
}

.gbp-header__nav-link:hover {
  background-color: rgba(15, 23, 42, 0.04);
}

.gbp-header__nav-item--cta .gbp-header__nav-link--cta {
  background: linear-gradient(135deg, #1d4ed8, #0ea5e9);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
}

.gbp-header__nav-item--cta .gbp-header__nav-link--cta:hover {
  background: linear-gradient(135deg, #1d4ed8, #0369a1);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.gbp-header__nav-item--cta .gbp-header__nav-link--cta:focus-visible {
  outline-color: #eab308;
}

/* Mobile nav toggle */
.gbp-header__nav-toggle {
  display: none;
  border: 1px solid rgba(15, 23, 42, 0.16);
  background-color: #ffffff;
  border-radius: 999px;
  padding: 0.45rem 0.55rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
}

.gbp-header__nav-toggle:focus-visible {
  outline: 2px solid #1d4ed8;
  outline-offset: 2px;
}

.gbp-header__nav-toggle-bar {
  width: 1.1rem;
  height: 2px;
  border-radius: 999px;
  background-color: #0f172a;
  transition: transform 0.2s ease, opacity 0.2s ease, background-color 0.2s ease;
}

.gbp-header__nav-toggle[aria-expanded="true"] .gbp-header__nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.gbp-header__nav-toggle[aria-expanded="true"] .gbp-header__nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.gbp-header__nav-toggle[aria-expanded="true"] .gbp-header__nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile layout */
@media (max-width: 768px) {
  .gbp-header__inner {
    padding: 0.6rem 1rem;
  }

  .gbp-header__tagline {
    display: none;
  }

  .gbp-header__nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .gbp-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: #ffffff;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    transform-origin: top;
  }

  .gbp-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 0.4rem 1rem 0.8rem;
  }

  .gbp-header__nav-link {
    width: 100%;
    justify-content: flex-start;
    padding: 0.6rem 0.75rem;
    border-radius: 0.6rem;
  }

  .gbp-header__nav-item--cta .gbp-header__nav-link--cta {
    justify-content: center;
    margin-top: 0.25rem;
  }

  /* JS-enhanced state: closed by default */
  .gbp-header__nav--js-enabled {
    max-height: 0;
    opacity: 0;
    pointer-events: none;
    transform: scaleY(0.96);
    transition: max-height 0.22s ease, opacity 0.18s ease, transform 0.18s ease;
  }

  .gbp-header__nav--open {
    max-height: 480px;
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }
}

@media (max-width: 625px) {
  .gbp-header {
    overflow-x: hidden;
  }

  .gbp-header__inner {
    padding: 0.5rem 0.75rem;
    gap: 1rem;
  }

  .gbp-header__logo-mark {
    width: 2rem;
    height: 2rem;
    font-size: 0.85rem;
  }

  .gbp-header__site-name {
    font-size: 0.95rem;
  }

  .gbp-header__nav-list {
    padding: 0.4rem 0.75rem 0.8rem;
  }

  .gbp-header__nav-link {
    padding: 0.55rem 0.7rem;
    font-size: 0.88rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gbp-header__nav,
  .gbp-header__nav-toggle-bar {
    transition: none !important;
  }
}