/* ============================================================
   style-base.css — flowview9.site（PLAYCRAFT STUDIO）結構樣式
   涵蓋 n8n Backlink-SubWF-發布 注入頁面所需 header/footer class。
   依賴 style-color.css 的 --clr-* token，須排在其後載入。
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-editorial); background: var(--clr-bg); color: var(--clr-text); line-height: 1.6; }
a { color: inherit; text-decoration: none; }

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.header-logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: 0.02em;
}
.header-nav {
  display: flex;
  gap: 26px;
}
.header-nav .nav-link,
.nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-text-muted);
  transition: color .2s;
}
.header-nav .nav-link:hover,
.nav-link:hover {
  color: var(--clr-accent);
}

.site-footer {
  background: var(--clr-bg-dark);
  padding: 44px 0 24px;
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 28px;
}
.footer-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--clr-text-inv);
  margin-bottom: 12px;
  text-transform: uppercase;
}
.footer-inner a {
  display: block;
  font-size: 13px;
  color: var(--clr-text-inv-muted);
  margin-bottom: 8px;
}
.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px var(--space-5) 0;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 12px;
  color: rgba(255,255,255,.35);
}

@media (max-width: 640px) {
  .header-nav { display: none; }
  .footer-inner { grid-template-columns: 1fr; }
}