/* Copy-success confirmation overlay — no calculator card/layout changes */
.copy-success-overlay{
  position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(5,15,23,.82);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)
}
.copy-success-overlay.is-open{display:flex}
.copy-success-dialog{
  position:relative;width:min(92vw,520px);background:#fbf7ef;color:#13212c;border:1px solid #d9c9af;
  border-top:4px solid #b8862d;border-radius:16px;padding:42px 34px 34px;text-align:center;
  box-shadow:0 28px 90px rgba(0,0,0,.38)
}
.copy-success-icon{
  width:58px;height:58px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;
  background:#0f2231;color:#dfb05c;font-size:1.7rem;font-weight:900
}
.copy-success-dialog h2{margin:0;color:#10212e;font-size:clamp(1.45rem,3vw,2rem);line-height:1.1;font-weight:850;letter-spacing:-.025em}
.copy-success-dialog p{margin:12px auto 0;max-width:390px;color:#625a50;font-size:.92rem;line-height:1.55}
.copy-success-close{
  position:absolute;top:10px;right:12px;width:50px;height:50px;border:0;background:transparent;color:#d42020;
  font-size:2.45rem;line-height:1;font-weight:950;display:grid;place-items:center;cursor:pointer;border-radius:10px
}
.copy-success-close:hover{background:#fff0ee;color:#b50909}
.copy-success-close:focus-visible{outline:3px solid #d42020;outline-offset:2px}
@media(max-width:560px){.copy-success-dialog{padding:40px 22px 28px}.copy-success-close{top:6px;right:8px}}