:root{--bt-bg:#FFFFFF;--bt-bg-alt:#F6F6F6;--bt-text:#0B0B0D;--bt-muted-text:#5A5A5F;--bt-surface:#FFFFFF;--bt-surface-alt:#FAFAFA;--bt-stroke:rgba(11,11,13,0.13);--bt-stroke-strong:rgba(11,11,13,0.33);--bt-accent:#C7A55B;--bt-accent-soft:rgba(199,165,91,0.13);--bt-shadow:rgba(0,0,0,0.08);--bt-font-head:"Bodoni Moda",serif;--bt-font-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;--bt-h1-mobile:44px;--bt-h1-desktop:78px;--bt-h2-mobile:26px;--bt-h2-desktop:40px;--bt-h3-mobile:18px;--bt-h3-desktop:22px;--bt-body-mobile:16px;--bt-body-desktop:18px;--bt-meta-mobile:12px;--bt-meta-desktop:12px}.dark{--bt-bg:#0B0B0D;--bt-bg-alt:#1A1A1C;--bt-text:#FFFFFF;--bt-muted-text:#A0A0A5;--bt-surface:#0B0B0D;--bt-surface-alt:#1A1A1C;--bt-stroke:rgba(255,255,255,0.13);--bt-stroke-strong:rgba(255,255,255,0.33)}.bt-noise-overlay{position:fixed;inset:0;z-index:0;opacity:.06;mix-blend-mode:multiply;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E")}.bt-section-bg-alt{background-image:linear-gradient(rgba(0,0,0,.056) 1px,transparent 0),linear-gradient(90deg,rgba(0,0,0,.056) 1px,transparent 0);background-size:24px 24px;background-color:var(--bt-bg-alt)}@keyframes bt-shine{0%{transform:translateX(-100%) skewX(-15deg)}to{transform:translateX(200%) skewX(-15deg)}}.bt-shine-effect{position:relative;overflow:hidden}.bt-shine-effect:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:bt-shine 1.5s infinite}