*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0d1117;--bg-secondary: #161b22;--border: #30363d;--text: #e6edf3;--text-muted: #8b949e;--accent: #58a6ff;--accent-hover: #79c0ff;--green: #3fb950;--red: #f85149;--gold: #d29922}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.container{max-width:800px;margin:0 auto;padding:2rem 1rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;border:1px solid var(--border);transition:all .15s ease}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-secondary);color:var(--text)}.btn-secondary:hover{background:var(--border)}.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1.5rem}.avatar{border-radius:50%;border:2px solid var(--border)}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-4{margin-top:2rem}.mb-2{margin-bottom:1rem}.gap-1{gap:.5rem}.gap-2{gap:1rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}