/* ─── Livemo 共通ヘッダ・フッタ ─── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(18,18,18,0.88);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header-inner {
  max-width: 960px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 56px;
}
.site-logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 1.1rem; color: #F2F2F8;
  letter-spacing: -0.02em; text-decoration: none;
}
.site-logo svg { color: #3B82F6; flex-shrink: 0; }
.site-nav { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; align-items: center; }
.site-nav a {
  color: #B0B0C8; font-size: 0.85rem; text-decoration: none;
  transition: color 0.2s;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: #F2F2F8; }
.site-nav-cta {
  background: #3B82F6; color: #fff !important;
  padding: 6px 14px; border-radius: 8px; font-weight: 500;
  font-size: 0.85rem; text-decoration: none;
  transition: opacity 0.2s;
}
.site-nav-cta:hover { opacity: 0.9; }
.site-nav-toggle {
  display: none; width: 32px; height: 32px; position: relative;
  background: none; border: none; padding: 0; cursor: pointer;
}
.site-nav-toggle span {
  position: absolute; left: 5px; right: 5px; height: 2px;
  background: #F2F2F8; border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
.site-nav-toggle span:nth-child(1) { top: 11px; }
.site-nav-toggle span:nth-child(2) { top: 15px; }
.site-nav-toggle span:nth-child(3) { top: 19px; }
.site-header.nav-open .site-nav-toggle span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.site-header.nav-open .site-nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.nav-open .site-nav-toggle span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 32px 20px;
  text-align: center;
}
.site-footer-inner {
  max-width: 960px; margin: 0 auto;
}
.site-footer-brand {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 700; font-size: 0.9rem; color: #B0B0C8;
  text-decoration: none; margin-bottom: 12px;
}
.site-footer-brand svg { color: #3B82F6; flex-shrink: 0; }
.site-footer-links {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 20px;
  margin-bottom: 16px;
}
.site-footer-links a {
  color: #606080; font-size: 0.8rem; text-decoration: none;
  transition: color 0.2s;
}
.site-footer-links a:hover { color: #B0B0C8; }
.site-footer-copy {
  color: #606080; font-size: 0.75rem; margin: 0;
}

/* ─── Mobile ─── */
@media (max-width: 639px) {
  .site-nav-toggle { display: block; }
  .site-nav {
    display: none; flex-direction: column; gap: 0;
    position: absolute; top: 56px; left: 0; right: 0;
    background: rgba(18,18,18,0.96);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 12px 20px 16px;
  }
  .site-header.nav-open .site-nav { display: flex; }
  .site-nav li { padding: 8px 0; }
  .site-nav-cta { margin-top: 4px; text-align: center; display: block; }
}