.header{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;border-bottom:1px solid var(--border-subtle);background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:-webkit-sticky;position:sticky;top:0;z-index:100}.header-logo img{height:28px;width:auto}.header-nav{display:flex;align-items:center;gap:24px}.header-nav a{font-size:14px;font-weight:500;color:var(--text-secondary);transition:color .15s ease}.header-nav a:hover{color:var(--text-primary)}.header-mobile-toggle{display:none;padding:8px;color:var(--text-secondary)}@media (max-width:768px){.header-nav{display:none}.header-mobile-toggle{display:block}}.footer{padding:64px 32px 32px;border-top:1px solid var(--border-subtle);background:var(--bg-surface)}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:48px;gap:48px;max-width:1200px;margin:0 auto 48px}.footer-col h4{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);margin-bottom:16px}.footer-col a{display:block;font-size:14px;color:var(--text-secondary);padding:4px 0;transition:color .15s ease}.footer-col a:hover{color:var(--text-primary)}.footer-bottom{max-width:1200px;margin:0 auto;padding-top:24px;border-top:1px solid var(--border-subtle);font-size:13px;color:var(--text-tertiary)}@media (max-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}}@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}