:root{--bg-color:#fafafa;--text-primary:#111;--text-secondary:#555;--border-color:#e5e5e5;--accent-color:#111;--btn-text:#fff;--surface-subtle:#00000005;--card-hover:#00000004;--nav-bg:#fafafaf2;--nav-height:80px}[data-theme=dark]{--bg-color:#121212;--text-primary:#f4f4f5;--text-secondary:#a1a1aa;--border-color:#27272a;--accent-color:#f4f4f5;--btn-text:#121212;--surface-subtle:#ffffff0a;--card-hover:#ffffff08;--nav-bg:#121212f2}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6;transition:background-color .25s,color .25s}h1,h2,h3,h4,h5,h6{letter-spacing:-.02em;margin-bottom:1rem;font-weight:600;line-height:1.2}h1{font-size:clamp(3rem,5vw + 1rem,5rem)}h2{margin-bottom:2rem;font-size:clamp(2rem,3vw + 1rem,3rem)}p{color:var(--text-secondary);max-width:65ch;margin-bottom:1.5rem;font-size:1.125rem}a{color:var(--text-primary);text-decoration:none;transition:opacity .2s,color .2s}a:hover{opacity:.7}a:focus-visible,button:focus-visible,.btn:focus-visible{outline:2px solid var(--text-primary);outline-offset:3px}ul{list-style:none}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 2rem}section{flex-direction:column;justify-content:center;min-height:100vh;padding:6rem 0;display:flex}.btn{background-color:var(--accent-color);min-width:44px;min-height:44px;color:var(--btn-text);border:1px solid var(--accent-color);cursor:pointer;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.btn:hover{color:var(--accent-color);opacity:1;background-color:#0000}.btn-outline{color:var(--accent-color);background-color:#0000}.btn-outline:hover{background-color:var(--accent-color);color:var(--btn-text);opacity:1}.theme-toggle-btn{border:1px solid var(--border-color);color:var(--text-primary);cursor:pointer;background:0 0;justify-content:center;align-items:center;min-width:44px;min-height:44px;padding:.5rem;transition:border-color .2s,background-color .2s,color .2s;display:inline-flex}.theme-toggle-btn:hover{border-color:var(--text-primary);background-color:var(--surface-subtle)}.grid{gap:2rem;display:grid}.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}input,textarea{border:1px solid var(--border-color);width:100%;color:var(--text-primary);background:0 0;min-height:44px;margin-bottom:1rem;padding:.875rem 1rem;font-family:inherit;font-size:1rem;transition:border-color .2s}input:focus-visible,textarea:focus-visible{outline:2px solid var(--text-primary);outline-offset:1px;border-color:var(--accent-color)}.text-center{text-align:center}.mt-2{margin-top:2rem}.mb-2{margin-bottom:2rem}@media (width<=768px){.desktop-nav{display:none!important}.mobile-nav-toggle{display:inline-flex!important}.container{padding:0 1.25rem}section{min-height:auto;padding:4.5rem 0}h1{font-size:2.5rem}h2{margin-bottom:1.5rem;font-size:1.85rem}}.project-card:hover{transform:translateY(-2px);border-color:var(--text-primary)!important;background-color:var(--card-hover)!important}.project-card:focus-visible{outline:2px solid var(--text-primary);outline-offset:3px;border-color:var(--text-primary)!important}.article-body p{max-width:72ch;line-height:1.75}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.about-hero-grid{border-bottom:1px solid var(--border-color);grid-template-columns:1.35fr .85fr;align-items:flex-end;gap:3.5rem;margin-bottom:4rem;display:grid}@media (width<=768px){.about-hero-grid{grid-template-columns:1fr;gap:2rem}}