/* site-nav.css — サイト共通のヘッダーメニュー（inc/site-nav/site-nav.php） */
nav.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.85rem 2rem;
  background: rgba(255, 252, 245, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1.5px solid rgba(232, 120, 42, 0.18);
}
.site-nav__menu { display: flex; gap: 2.2rem; }
.site-nav__brand {
  color: #2D6E1E;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.site-nav__brand:hover { color: #E8782A; }
.site-nav__menu a {
  color: #2D6E1E;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: color 0.2s;
}
.site-nav__menu a:hover { color: #E8782A; }
.site-nav__menu a[aria-current="page"] { color: #E8782A; border-bottom: 2px solid #E8782A; padding-bottom: 1px; }
.site-nav__toggle { display: none; }

/* スマホ：サイト名＋ハンバーガー（PCは左にサイト名・右にメニュー） */
@media (max-width: 960px) {
  nav.site-nav { justify-content: space-between; padding: 0.35rem 0.5rem 0.35rem 1.1rem; }
  .site-nav__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #2D6E1E;
    cursor: pointer;
  }
  .site-nav__toggle span,
  .site-nav__toggle span::before,
  .site-nav__toggle span::after {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform 0.2s, background 0.2s;
  }
  .site-nav__toggle span { position: relative; }
  .site-nav__toggle span::before,
  .site-nav__toggle span::after { content: ""; position: absolute; left: 0; }
  .site-nav__toggle span::before { top: -7px; }
  .site-nav__toggle span::after { top: 7px; }
  nav.site-nav.is-open .site-nav__toggle span { background: transparent; }
  nav.site-nav.is-open .site-nav__toggle span::before { transform: translateY(7px) rotate(45deg); }
  nav.site-nav.is-open .site-nav__toggle span::after { transform: translateY(-7px) rotate(-45deg); }
  .site-nav__menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 0.3rem 0 0.7rem;
    background: rgba(255, 252, 245, 0.98);
    border-bottom: 1.5px solid rgba(232, 120, 42, 0.18);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
  }
  nav.site-nav.is-open .site-nav__menu { display: flex; }
  .site-nav__menu a { padding: 0.85rem 1.4rem; font-size: 0.95rem; border-top: 1px solid rgba(232, 120, 42, 0.1); }
  .site-nav__menu a:first-child { border-top: 0; }
  .site-nav__menu a[aria-current="page"] { border-bottom: 0; padding-bottom: 0.85rem; background: linear-gradient(90deg, rgba(255, 243, 230, 0.9), rgba(255, 243, 230, 0)); }
}