/* Shared site header. Every page links this file and uses the same <nav> markup,
   so the header looks and measures the same everywhere. */

/* Always reserve the scrollbar's space so the viewport (and the fixed nav) never
   changes width between pages or when the mobile menu locks scrolling. */
html { scrollbar-gutter: stable; }

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--white); border-bottom: 2px solid var(--mid-sage);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 64px;
  font-family: 'Source Sans 3', 'Source Sans 3 Fallback', sans-serif;
}
/* display:block so the logo's position doesn't depend on the text font's line metrics */
.nav-logo img { display: block; height: 40px; width: auto; }
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--green); font-weight: 600; font-size: 15px; letter-spacing: 0.02em; white-space: nowrap; transition: color 0.2s; }
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--orange); }
.nav-cta { display: inline-flex; align-items: center; justify-content: center; line-height: 20px; background: var(--orange); color: white; padding: 10px 24px; border-radius: 2px; font-weight: 700; font-size: 14px; letter-spacing: 0.05em; text-transform: uppercase; text-decoration: none; white-space: nowrap; transition: background 0.2s; }
.nav-cta:hover { background: var(--green); color: white; }

/* ── HAMBURGER MENU ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
  z-index: 1001;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark-green);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* The 6 links + CTA need ~1040px at full spacing. Between 981px and 1180px
   tighten the gaps so everything stays on one line... */
@media (max-width: 1180px) {
  nav { padding: 0 32px; }
  .nav-links { gap: 22px; }
}

/* ...and below 980px switch to the menu instead of letting the links squeeze and wrap. */
@media (max-width: 980px) {
  .nav-hamburger { display: flex; }
  nav .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--sage);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 36px;
    z-index: 999;
    list-style: none;
    padding: 0;
    margin: 0;
  }
  nav .nav-links.open { display: flex; }
  nav .nav-links a { font-size: 22px; font-weight: 700; color: var(--dark-green); }
  nav .nav-links a[aria-current="page"] { color: var(--orange); }
  nav .nav-cta { display: none; }
}

@media (max-width: 768px) {
  nav { padding: 0 20px; height: 56px; }
}