:root{--body-bg: #f8f9fa;--body-color: #333;--navbar-bg: #f9f9f9;--navbar-color: #333;--btn-bg: #333;--btn-color: #fff;--card-bg: #f3f3f3;--card-text: #333;--github-btn-border: #24292e;--github-btn-text: #24292e;--github-btn-hover-bg: #24292e;--github-btn-hover-text: #fff;--footer-bg: #f9f9f9;--footer-text: #000;--footer-icon: #000;--footer-hover: #555;--footer-border: #e5e5e5}body.dark-theme{--body-bg: #121212;--body-color: #f1f1f1;--navbar-bg: #222;--navbar-color: #fff;--btn-bg: #fff;--btn-color: #222;--card-bg: #1e1e1e;--card-text: #f1f1f1;--github-btn-border: #e1e1e1;--github-btn-text: #e1e1e1;--github-btn-hover-bg: #e1e1e1;--github-btn-hover-text: #1a1a1a;--footer-bg: #0d0d0d;--footer-text: #f1f1f1;--footer-icon: #fff;--footer-hover: #ccc;--footer-border: #222}body{background-color:var(--body-bg);color:var(--body-color);margin:0;font-family:Segoe UI,sans-serif;transition:background-color .3s,color .3s}.projects{padding:2rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.card{background-color:var(--card-bg);color:var(--card-text);padding:1.5rem;border-radius:12px;transition:background-color .3s,color .3s}.btn-github{margin-top:auto;padding:.5rem .8rem;border:2px solid var(--github-btn-border);border-radius:6px;color:var(--github-btn-text);font-weight:600;text-align:center;text-decoration:none;transition:all .2s;display:block}.btn-github:hover{background-color:var(--github-btn-hover-bg);color:var(--github-btn-hover-text)}.hero{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;padding:2rem;min-height:100vh;background-color:var(--body-bg);color:var(--body-color);transition:background-color .3s,color .3s}.hero-content h1,.hero-content h2,.hero-content p{transition:color .3s}.footer{background:var(--footer-bg);color:var(--footer-text);padding:2.5rem 1rem;text-align:center;border-top:1px solid var(--footer-border);transition:background .3s,color .3s,border-color .3s}.footer-content{display:flex;flex-direction:column;align-items:center;gap:1.2rem;max-width:900px;margin:0 auto}.footer-content p{font-size:.95rem;opacity:.85;margin:0}.footer-contact{display:flex;gap:1.2rem;justify-content:center;align-items:center}.footer-contact a.contact-link{width:34px;height:34px;display:flex;align-items:center;justify-content:center}.footer-contact a.contact-link svg{width:100%;height:100%;fill:var(--footer-icon);transition:transform .25s ease,fill .25s ease,opacity .25s ease;opacity:.9}.footer-contact a.contact-link:hover svg{transform:translateY(-3px) scale(1.15);fill:var(--footer-hover);opacity:1}