/* ============================================================
   HEADER.CSS — Nawigacja (ciemna, sticky, responsive)
   ============================================================ */

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  height: 100%;
}

/* Logo */
.logo a {
  font-size: 1.375rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  transition: var(--transition);
}

.logo a:hover {
  color: var(--color-orange);
}

/* Linki nav — desktop */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links li a {
  display: block;
  padding: 0.4rem 0.75rem;
  font-size: var(--font-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-links li a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

/* CTA link w nav */
.nav-links li a.nav-cta {
  background: var(--color-orange);
  color: #fff;
  font-weight: 600;
  padding: 0.4rem 1rem;
  margin-left: 0.5rem;
}

.nav-links li a.nav-cta:hover {
  background: var(--color-orange-hover);
}

/* Zewnętrzne linki (GitHub, itp.) */
.nav-links li a[target="_blank"] {
  color: rgba(255, 255, 255, 0.5);
}

.nav-links li a[target="_blank"]:hover {
  color: rgba(255, 255, 255, 0.9);
}

/* Separator */
.nav-links .divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.12);
  margin: 0 0.5rem;
  pointer-events: none;
}

/* Hamburger */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.5rem;
  padding: 0.25rem;
  line-height: 1;
  transition: var(--transition);
  font-family: var(--font);
}

.menu-toggle:hover {
  color: #fff;
}

/* ---- Responsive ---- */
@media (max-width: 880px) {
  /* Ukryj zewnętrzne linki na średnim ekranie */
  .nav-links li.external-link {
    display: none;
  }
  .nav-links .divider {
    display: none;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(13, 17, 23, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    max-height: 0;
    overflow: hidden;
    transition:
      max-height 0.35s ease,
      padding 0.35s ease;
    gap: 0;
  }

  .nav-links.active {
    max-height: 480px;
    padding: 0.75rem 0;
  }

  .nav-links li {
    display: block !important;
  }

  .nav-links li a {
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-size: var(--font-base);
  }

  .nav-links li a.nav-cta {
    margin: 0.5rem 1rem;
    border-radius: var(--radius-md);
    text-align: center;
  }

  .nav-links .divider {
    display: block;
    width: auto;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 0.5rem 1rem;
  }
}