*{box-sizing:border-box;}
html,body{margin:0;padding:0;height:100%;}
body{
  background:#EDEAEC;
  font-family:'Poppins',sans-serif;
  color:var(--ink);
  height:100%;
  overflow:hidden;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:16px 0;
}

.app{
  width:390px;
  max-width:100vw;
  height:100%;
  max-height:780px;
  background:var(--surface);
  border-radius:32px;
  box-shadow:var(--shadow-lg);
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}

.screen{
  display:none;
  flex-direction:column;
  flex:1;
  min-height:0;
  overflow-y:auto;
  position:relative;
}
.screen.active{display:flex;}

/* ---------- sticky footer CTA ---------- */
.sticky-cta{
  position:absolute; left:0; right:0; bottom:0;
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:12px 18px;
  display:none;
  align-items:center;gap:12px;
  box-shadow:0 -8px 24px rgba(91,35,64,.08);
  z-index:5;
}
.sticky-cta.show{display:flex;}
.sticky-cta .sc-info{flex:1;text-align:left;}
.sticky-cta .sc-info .sc-name{font-size:12px;color:var(--ink-faint);font-weight:500;}
.sticky-cta .sc-info .sc-amt{font-size:15px;font-weight:700;color:var(--pink-deep);font-family:'Baloo 2',sans-serif;}
.sticky-cta .btn-primary{width:auto;padding:12px 20px;font-size:13.5px;box-shadow:none;}