.site-header{background:var(--color-white);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:100}.site-header__inner{max-width:var(--container-max);margin:0 auto;padding:var(--space-sm) var(--space-md);display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.site-logo{font-family:var(--font-serif);font-size:1.375rem;font-weight:700;letter-spacing:0.05em;color:var(--color-text);white-space:nowrap}.site-logo:hover{color:var(--color-accent)}.site-logo__sub{display:block;font-family:var(--font-sans);font-size:0.6875rem;font-weight:400;letter-spacing:0.15em;color:var(--color-text-muted);margin-top:0.125rem}.site-nav{display:flex;align-items:center}.site-nav__list{display:flex;gap:1.375rem}.site-nav__link{font-size:0.875rem;font-weight:500;padding:0.5rem 0;position:relative;color:var(--color-text);white-space:nowrap}@media (max-width:1024px) and (min-width:769px){.site-nav__list{gap:1rem}.site-nav__link{font-size:0.8125rem}}.site-nav__link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--color-accent);transform:scaleX(0);transition:transform var(--transition)}.site-nav__link:hover::after,.site-nav__link.is-active::after{transform:scaleX(1)}.nav-toggle{display:none;background:none;border:none;padding:0.5rem;cursor:pointer}.nav-toggle__bar{display:block;width:24px;height:2px;background:var(--color-text);margin:5px 0;transition:transform var(--transition),opacity var(--transition)}@media (max-width:768px){.nav-toggle{display:block}.site-nav{position:fixed;top:60px;left:0;right:0;bottom:0;background:var(--color-white);padding:var(--space-lg) var(--space-md);transform:translateX(100%);transition:transform 0.3s ease;overflow-y:auto}.site-nav.is-open{transform:translateX(0)}.site-nav__list{flex-direction:column;gap:0}.site-nav__link{display:block;padding:var(--space-md) 0;font-size:1.0625rem;border-bottom:1px solid var(--color-border)}.site-nav__link::after{display:none}.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}}.site-footer{background:var(--color-bg-alt);padding:var(--space-xl) 0 var(--space-md);margin-top:var(--space-2xl)}.site-footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--space-lg);margin-bottom:var(--space-lg)}@media (max-width:768px){.site-footer__grid{grid-template-columns:1fr;gap:var(--space-md)}}.site-footer__title{font-family:var(--font-serif);font-size:1.125rem;font-weight:700;margin-bottom:var(--space-sm)}.site-footer__text{font-size:0.875rem;color:var(--color-text-muted);line-height:1.8}.site-footer__list li{margin-bottom:var(--space-xs);font-size:0.9375rem}.site-footer__list a:hover{color:var(--color-accent)}.site-footer__email{color:var(--color-accent);font-weight:500}.site-footer__bottom{border-top:1px solid var(--color-border);padding-top:var(--space-md);text-align:center;font-size:0.8125rem;color:var(--color-text-muted)}