:root{--primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#dbeafe;--accent:#f97316;--accent-dark:#ea580c;--text:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--bg:#fff;--bg-soft:#f8fafc;--bg-muted:#f1f5f9;--border:#e2e8f0;--border-light:#f1f5f9;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);--radius-sm:6px;--radius:10px;--radius-lg:16px;--radius-xl:24px;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,sans-serif;--transition:0.2s 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var(--transition)}.header-hamburger:hover{background:var(--bg-muted)}.header-hamburger span{display:block;width:100%;height:2px;background:var(--text);border-radius:2px;transition:transform .3s ease,opacity .3s ease;transform-origin:center}.header-hamburger--open span:first-child{transform:rotate(45deg) translate(5px,5px)}.header-hamburger--open span:nth-child(2){opacity:0}.header-hamburger--open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.header-mobile-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:1001;animation:overlayFade .2s ease}@keyframes overlayFade{0%{opacity:0}to{opacity:1}}.header-mobile-nav{position:fixed;top:0;right:0;bottom:0;width:min(320px,85vw);background:var(--bg);z-index:1002;transform:translateX(100%);transition:transform .3s 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