body { font-family: -apple-system, Segoe UI, Roboto, sans-serif; max-width: 720px; margin: 40px auto; padding: 0 20px; color: #1a1a1a; background: #fafafa; }
h1 { font-size: 1.4rem; }
.card { background: #fff; border: 1px solid #e2e2e2; border-radius: 10px; padding: 20px 24px; margin: 16px 0; }
.badge-list a { display: block; padding: 10px 0; border-bottom: 1px solid #eee; text-decoration: none; color: #0a66c2; }
.valid { color: #0a7a2f; font-weight: 600; }
.invalid { color: #c0392b; font-weight: 600; }
label { display: block; margin-top: 12px; font-size: 0.85rem; font-weight: 600; color: #444; }
input, select, textarea { width: 100%; padding: 8px 10px; margin-top: 4px; border: 1px solid #ccc; border-radius: 6px; font-size: 0.95rem; box-sizing: border-box; }
button { margin-top: 18px; background: #0a66c2; color: #fff; border: none; padding: 10px 18px; border-radius: 6px; font-size: 0.95rem; cursor: pointer; }
.linkedin-btn { display: inline-flex; align-items: center; gap: 8px; background: #0a66c2; color: #fff; padding: 10px 16px; border-radius: 24px; text-decoration: none; font-weight: 600; margin-top: 10px; }
code, pre { background: #f2f2f2; padding: 2px 6px; border-radius: 4px; font-size: 0.85rem; }
pre { padding: 12px; overflow-x: auto; }
.meta { color: #666; font-size: 0.85rem; }
footer { margin-top: 40px; font-size: 0.8rem; color: #999; }