/* Shared navigation and footer for the editor and month collections. */
.site-header { background: var(--panel, #fff); border-bottom: 1px solid var(--line, #dde4ea); }
.header-inner { max-width: 1280px; margin: 0 auto; min-height: 72px; padding: 12px 16px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg, #20252c); text-decoration: none; white-space: nowrap; }
.mark { width: 38px; height: 38px; border-radius: 4px; background: var(--accent, #4d789b); color: var(--on-accent, #fff); display: grid; place-items: center; flex: none; }
.brand-name { font: 700 23px/1.1 var(--display, Georgia, serif); margin: 0; letter-spacing: -.01em; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.header-share-btn { background: var(--panel, #fff); border: 1px solid var(--line, #dde4ea); border-radius: 4px; color: var(--fg, #20252c); font: 600 13px var(--body, Arial, sans-serif); padding: 8px 14px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; text-decoration: none; transition: background .15s ease, border-color .15s ease; }
.header-share-btn:hover { background: var(--hover, #edf3f7); border-color: var(--highlight, #709fc0); }
.header-share-btn.copied { background: #e8f5e9; border-color: #4caf50; color: #2e7d32; font-weight: 700; }
.header-action { background: var(--fg, #20252c); border: 1px solid var(--fg, #20252c); border-radius: 4px; color: var(--on-accent, #fff); font: 700 14px var(--body, Arial, sans-serif); padding: 9px 16px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; }
.header-action:hover { opacity: .82; }
.site-footer { margin-top: 72px; border-top: 1px solid var(--line, #dde4ea); background: var(--panel, #fff); padding: 32px 16px; }
.footer-inner { max-width: 1280px; margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; font-size: 13px; color: var(--muted, #626d79); }
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--fg, #20252c); }
.footer-brand .mark { width: 30px; height: 30px; }
.footer-links { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--muted, #626d79); text-decoration: none; font-weight: 600; transition: color .15s; }
.footer-links a:hover { color: var(--accent, #4d789b); }
.footer-copy { margin: 0; width: 100%; font-size: 12px; color: var(--muted, #626d79); border-top: 1px solid var(--hover, #edf3f7); padding-top: 14px; }
@media (max-width: 600px) { .header-inner { gap: 12px; } }
@media (max-width: 480px) {
  .header-action { display: none; }
  .header-share-btn span { display: none; }
  .header-share-btn { padding: 8px 10px; }
  .brand-name { font-size: 21px; }
}