/* ==========================================================================
   Navigation Bar
   Sticky site-wide nav with hamburger collapse at ≤767px.
   ========================================================================== */

/* --- Nav shell --- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--color-stone-moss);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* --- Logo --- */

.site-nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.site-nav__logo-mark {
  width: 32px;
  height: 28px;
  flex-shrink: 0;
}

.site-nav__wordmark {
  font-family: var(--font-brand);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-rust);
}

.site-nav__logo:hover .site-nav__wordmark,
.site-nav__logo:focus-visible .site-nav__wordmark {
  opacity: 0.75;
}

.site-nav__logo:focus-visible {
  outline: 2px solid var(--color-rust);
  outline-offset: 3px;
  border-radius: 2px;
}


/* --- Desktop links + CTA --- */

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.site-nav__links a {
  font-family: var(--font-brand);
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-soil);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible {
  color: var(--color-rust);
  border-bottom-color: var(--color-rust);
}

.site-nav__links a:focus-visible {
  outline: 2px solid var(--color-rust);
  outline-offset: 3px;
  border-radius: 2px;
}

/* CTA button overrides the generic link styles above */
.site-nav__links .site-nav__cta {
  padding: 0 1.75rem;
  border-bottom: none;
}

/* --- CTA button --- */

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1.75rem;
  background-color: var(--color-rust);
  color: var(--color-cream) !important;
  font-family: var(--font-brand);
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none !important;
  border: none;
  border-radius: 1.0625rem;
  cursor: pointer;
  transition: background-color 0.2s ease, opacity 0.2s ease;
  border-bottom: none !important;
}

.site-nav__cta:hover {
  background-color: var(--color-terracotta);
}

.site-nav__cta:focus-visible {
  outline: 2px solid var(--color-rust);
  outline-offset: 3px;
}

/* --- Hamburger button (hidden on desktop) --- */

.site-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--color-soil);
}

.site-nav__hamburger:focus-visible {
  outline: 2px solid var(--color-rust);
  outline-offset: 3px;
  border-radius: 2px;
}

.site-nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-soil);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
  transform-origin: center;
}

/* Hamburger → X when open */
.site-nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.site-nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile breakpoint --- */

@media (max-width: 767px) {
  .site-nav__hamburger {
    display: flex;
  }

  .site-nav__links {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--color-cream);
    border-bottom: 1px solid var(--color-stone-moss);
    padding: 1rem 1.5rem 1.5rem;
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .site-nav__links li {
    width: 100%;
  }

  .site-nav__links a {
    width: 100%;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-stone-moss);
    border-left: none;
    font-size: var(--text-body);
    text-transform: none;
    letter-spacing: 0;
    min-height: 44px;
  }

  .site-nav__links li:last-child a {
    border-bottom: none;
  }

  .site-nav__cta {
    margin-top: 1rem;
    width: 100%;
    justify-content: center;
  }
}