:root{--bg:#1d2021;--surface:#282828;--surface-up:#3c3836;--text:#ebdbb2;--heading:#fbf1c7;--muted:#928374;--yellow:#fabd2f;--aqua:#8ec07c;--orange:#fe8019;--border:#504945;--bd-red:#f42a41;--bd-green:#006a4e;--font-display:"Fraunces", serif;--font-body:"Inter", sans-serif;--font-mono:"Fira Code", monospace;--font-bangla:"Noto Sans Bengali", sans-serif;--text-caption:.75rem;--text-label:.875rem;--text-body:1rem;--text-lead:1.125rem;--text-title:1.375rem;--text-heading:clamp(1.5rem, 3vw, 2rem);--text-display:clamp(2rem, 5vw, 3rem);--text-hero:clamp(2.5rem, 6vw, 5rem)}[data-theme=light]{--bg:#fbf1c7;--surface:#f2e5bc;--surface-up:#ebdbb2;--text:#3c3836;--heading:#282828;--muted:#7c6f64;--yellow:#b57614;--aqua:#427b58;--orange:#af3a03;--border:#d5c4a1}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.6}.section-label{font-family:var(--font-mono);font-size:var(--text-body);color:var(--yellow);letter-spacing:.1em;text-transform:uppercase}.section-link{font-family:var(--font-mono);font-size:var(--text-body);color:var(--yellow);align-self:flex-start;transition:opacity .2s}.section-link:hover{opacity:.7}.btn:focus-visible,.section-link:focus-visible{outline:2px solid var(--yellow);outline-offset:3px}.margin-lines{pointer-events:none;z-index:1;width:100%;max-width:85%;position:fixed;inset:0 0 0 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