Freemium conversion path

<div class="stage"><div class="label">FREE → VALUE → CHOICE</div><div class="meter"><span>FREE USAGE</span><i></i><b>LIMIT</b></div><div class="fork"><div class="choice free">CONTINUE FREE<small>CORE VALUE</small></div><div class="choice paid">UPGRADE<small>MORE CAPACITY</small></div></div></div>

.stage{position:relative;width:min(94vw,760px);height:min(88vh,310px);font:800 clamp(10px,max(3.4vmin,1vw),15px)/1.25 sans-serif}.stage *{box-sizing:border-box}.label{font-size:clamp(10px,max(3.4vmin,1vw),12px);letter-spacing:.1em;color:var(--muted)}.accent{color:var(--accent)}.pill{border:1.5px solid var(--fg);border-radius:999px;background:var(--surface);padding:.5em .8em}.hint{position:absolute;right:2%;bottom:0;font-size:clamp(10px,max(3.4vmin,1vw),12px);color:var(--muted)}.meter{position:absolute;left:5%;top:24%;width:90%;height:clamp(37px,10vmin,65px);border:2px solid var(--fg);display:flex;align-items:center;justify-content:space-between;padding:0 3%;overflow:hidden}.meter>*{z-index:2}.meter i{position:absolute;inset:0 auto 0 0;width:73%;background:var(--accent-2);animation:meter 5s ease-in-out infinite alternate}.meter b{color:var(--accent)}.fork{position:absolute;inset:auto 5% 7%;display:flex;gap:6%;justify-content:center}.choice{width:45%;min-height:clamp(43px,13vmin,85px);padding:4%;border:2px solid var(--fg);background:var(--surface);display:grid;place-items:center;animation:choose 5s infinite}.choice small{display:block;font-size:max(max(10px,1vw,9px),.7em);color:var(--muted)}.paid{background:var(--accent);color:white;animation-delay:2s}.paid small{color:white}@keyframes meter{from{width:12%}to{width:73%}}@keyframes choose{50%{transform:translateY(-5px);box-shadow:4px 4px var(--line)}}