.topnav {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 1040px;
    margin: 0 auto;
    padding: 16px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
  }

  .topnav a {
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 13px;
    font-weight: 700;
    padding: 10px 14px;
    border-radius: 999px;
    transition: all 0.2s ease;
  }

  .topnav a:hover {
    background: var(--paper-strong);
    color: var(--accent);
  }

  .topnav a.active {
    background: var(--accent);
    color: white;
  }

  @media (max-width: 720px) {
    .topnav {
      flex-direction: column;
      align-items: flex-start;
      border-radius: 24px;
    }
  }