/* ================================================================
   Parallel Official Site — layout.css
   Header Navigation / Footer
   ================================================================ */

/* ── ヘッダーナビゲーション ── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: 72px;
  display: flex;
  align-items: center;
}
.header-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-image {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: block;
}
.logo-text {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.site-nav a {
  color: var(--text-sub);
  font-size: 1.05rem;
  font-weight: 500;
  transition: color 0.2s;
  display: inline-block;
  line-height: 1;
}
.site-nav a:hover {
  color: var(--text-main);
}
.site-nav .nav-btn {
  background: rgba(92,107,192,0.12);
  color: var(--accent-bright);
  padding: 10px 22px;
  border-radius: 6px;
  border: 1px solid rgba(92,107,192,0.35);
  font-size: 0.95rem;
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.site-nav .nav-btn:hover {
  background: var(--accent);
  border-color: var(--accent-bright);
  color: #fff;
}

/* ── フッター ── */
#site-footer {
  background: #050508;
  border-top: 1px solid var(--border);
  padding: 40px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  color: var(--text-muted);
}
.footer-links a:hover {
  color: var(--text-main);
}

/* ── レスポンシブ ── */
@media (max-width: 768px) {
  .site-nav { display: none; }
}