.mega-bfl{margin:28px 0;padding:22px;border:1px solid #c4dcea;border-radius:18px;background:linear-gradient(135deg,#071a2f,#104566);color:#fff}.mega-bfl h3{margin:0;font-size:21px}.mega-bfl label{display:block;margin-top:15px;color:#d9effa;font-size:13px}.mega-bfl output{float:right;color:#72e1ff;font-weight:700}.mega-bfl input{width:100%;accent-color:#50d9ff;margin-top:7px}.mega-bfl-bar{height:32px;margin-top:18px;border-radius:8px;background:linear-gradient(90deg,#3bd8ff 0 var(--air),#ef8b3e var(--air) 100%);position:relative}.mega-bfl-bar:after{content:'Relative installed airflow';position:absolute;inset:9px 12px;font:700 11px ui-monospace,monospace}.mega-bfl-result{margin-top:14px;padding:14px;border:1px solid rgba(205,237,255,.3);border-radius:10px;background:rgba(0,16,32,.45)}.mega-bfl-result strong{display:block;font-size:18px}.mega-bfl-result p{margin:6px 0 0;color:#c9e2ef;font-size:12px;line-height:1.55}