.sf-header{position:relative;z-index:100;background:var(--shell-header-bg,var(--color-bg-elevated));border-bottom:1px solid var(--color-border)}.sf-header--hidden{transform:translateY(-100%)}.sf-header__inner{display:flex;align-items:center;gap:var(--space-6);max-width:var(--content-max);margin:0 auto;padding:var(--space-4) var(--space-6)}.sf-header__brand{display:inline-flex;align-items:center;text-decoration:none;color:var(--color-fg);font-weight:700;letter-spacing:.06em;text-transform:uppercase}.sf-header__logo{display:block;height:2rem;width:auto}.sf-header__brand-text{font-size:var(--text-sm)}.sf-header__nav{display:none;margin-left:auto;gap:var(--space-6);align-items:center}.sf-header__link{position:relative;color:var(--color-fg-muted);text-decoration:none;font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.08em}.sf-header__link:hover{color:var(--color-fg)}.sf-header__badge{align-items:center;min-width:1.25rem;height:1.25rem;margin-left:.35rem;padding:0 .35rem;border-radius:999px;background:var(--color-primary);color:#fff;font-size:.65rem;font-weight:700}.sf-header__badge,.sf-header__burger{display:inline-flex;justify-content:center}.sf-header__burger{margin-left:auto;flex-direction:column;gap:4px;width:2.5rem;height:2.5rem;border:1px solid var(--color-border);background:transparent;cursor:pointer}.sf-header__burger span{display:block;width:1.1rem;height:2px;margin:0 auto;background:var(--color-fg)}.sf-header__drawer{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-4) var(--space-6) var(--space-6);border-top:1px solid var(--color-border);background:var(--color-bg-elevated)}.sf-header__drawer-link{color:var(--color-fg);text-decoration:none;padding:var(--space-2) 0;text-transform:uppercase;letter-spacing:.08em;font-size:var(--text-sm)}@media (min-width:900px){.sf-header__nav{display:flex}.sf-header__burger,.sf-header__drawer{display:none}}.sf-footer{margin-top:auto;border-top:1px solid var(--color-border);background:var(--shell-footer-bg,var(--color-bg-elevated))}.sf-footer__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-4);max-width:var(--content-max);margin:0 auto;padding:var(--space-8) var(--space-6)}.sf-footer__brand{margin:0;font-size:var(--text-sm);letter-spacing:.08em;text-transform:uppercase;color:var(--color-fg-muted)}.sf-footer__nav{display:flex;flex-wrap:wrap;gap:var(--space-4)}.sf-footer__nav a{color:var(--color-fg-muted);text-decoration:none;font-size:var(--text-sm)}.sf-footer__nav a:hover{color:var(--color-fg)}