/* ============================================
   HEADER & DESKTOP NAVIGATION
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 14px 0;
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---- LOGO ---- */
.site-logo {
  display: flex;
  align-items: center;
}

.site-logo img {
  height: 45px;
  width: auto;
}

/* ---- DESKTOP NAV ---- */
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav__link {
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-heading);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.main-nav__link:hover {
  background-color: var(--color-mint);
  color: var(--color-primary);
}

.main-nav__link--active {
  background-color: var(--color-mint);
  color: var(--color-primary);
  font-weight: 600;
}

.main-nav__donate {
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-left: 8px;
  transition: var(--transition);
}

.main-nav__donate:hover {
  background-color: var(--color-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-green);
}

/* ---- MOBILE HAMBURGER ---- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}