body { background: #f8fafc; color: #0f172a; }

.hero { padding: 3rem 0; text-align: center; }
.card-img-top { max-height: 120px; object-fit: contain; padding: 1rem; background: #fff; }
.download-btn { width: 100%; }
.features { margin-top: 2rem; }
.muted { color: #6b7280; }
.footer-note { font-size: .9rem; color: #475569; margin-top: 2rem; }