M39: harden application and acceptance gates

frontend/src/styles.css

@@ -283,9 +283,6 @@ details summary { cursor: pointer; color: var(--teal-dark); }.data-table details
 .about-card h2 { margin: 0 0 8px; color: var(--ink); font-size: 1rem; letter-spacing: -.015em; }
 .about-card p { margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.62; }
 .about-card p code { padding: 1px 5px; background: var(--surface-subtle); border-radius: 4px; font-size: .78rem; }
-.about-cta { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; background: var(--teal-pale); border-color: #bfe6df; }
-.about-cta strong { display: block; color: var(--ink); font-size: .85rem; }
-.about-cta p { margin: 2px 0 0; }
 .about-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-bottom: 18px; }
 .about-grid .about-card { margin-bottom: 0; }
 .about-details summary { cursor: pointer; color: var(--ink); font-size: 1rem; letter-spacing: -.015em; font-weight: 700; }