.npx-advent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.npx-advent-card{border:1px solid #e3e7ef;border-radius:12px;padding:16px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.npx-locked{opacity:.6;backdrop-filter:grayscale(1)}
.npx-letter{border:8px solid #e8f0ff;border-image: repeating-linear-gradient(45deg,#e11, #e11 10px,#fff 10px,#fff 20px,#1e77d3 20px,#1e77d3 30px,#fff 30px,#fff 40px) 8}
.npx-letter{padding:24px;background:#fff;border-radius:8px}
.npx-letter-form input, .npx-letter-form textarea, .npx-letter-form select{width:100%;padding:10px;margin-top:6px}
.npx-btn{display:inline-block;padding:10px 16px;border-radius:8px;background:#1e77d3;color:#fff;text-decoration:none}
#npx-tracker-timeline{margin-top:16px;display:grid;gap:12px}
.npx-timeline-item{border-left:4px solid #1e77d3;padding:8px 12px;background:#f9fbff}