*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#fafafa;--fg:#111;--muted:#666;--border:#e5e5e5;--primary:#2563eb;--primary-hover:#1d4ed8;--danger:#dc2626;--success:#16a34a;--radius:8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg);line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:0 24px}.card{border:1px solid var(--border);padding:24px}.btn,.card{background:white;border-radius:var(--radius)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;font-size:14px;font-weight:500;cursor:pointer;border:1px solid var(--border);color:var(--fg);transition:all .15s}.btn:hover{background:#f5f5f5}.btn-primary{background:var(--primary);color:white;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:border-color .15s}.input:focus{border-color:var(--primary)}.label{display:block;font-size:14px;font-weight:500;margin-bottom:6px}.error{color:var(--danger);font-size:13px;margin-top:4px}.text-muted{color:var(--muted)}.text-center{text-align:center}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}