.demo-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  background: rgba(2, 8, 14, 0.52);
  pointer-events: auto;
}

.demo-sheet {
  width: min(100%, 520px);
  padding: 18px;
  color: #f8fafc;
  background: linear-gradient(145deg, rgba(18, 32, 43, .98), rgba(9, 20, 29, .98));
  border: 1px solid rgba(0, 224, 161, .28);
  border-radius: 26px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .45), 0 0 0 1px rgba(255,255,255,.04) inset;
  animation: demoSheetIn .3s ease-out;
}

.demo-sheet-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.demo-step-icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: #06151a;
  background: #00e0a1;
  border-radius: 15px;
  font-size: 18px;
}

.demo-step-count {
  color: #9fb1bf;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.demo-close {
  width: 44px;
  height: 44px;
  margin-left: auto;
  color: #b4c1ca;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 14px;
}

.demo-close:hover,
.demo-close:focus-visible {
  color: #fff;
  background: rgba(255,255,255,.12);
}

.demo-progress {
  height: 5px;
  margin: 17px 0 18px;
  overflow: hidden;
  background: rgba(255,255,255,.08);
  border-radius: 99px;
}

.demo-progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #00e0a1, #63f5c7);
  border-radius: inherit;
  transition: width .25s ease;
}

.demo-kicker {
  margin: 0 0 7px;
  color: #00e0a1;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.demo-sheet h2 {
  margin: 0;
  font-size: clamp(21px, 5vw, 27px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.demo-body {
  margin: 10px 0 0;
  color: #b7c5cf;
  font-size: 14px;
  line-height: 1.55;
}

.demo-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.demo-checks span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 9px;
  color: #cfe9e1;
  font-size: 11px;
  background: rgba(0, 224, 161, .08);
  border: 1px solid rgba(0, 224, 161, .14);
  border-radius: 999px;
}

.demo-checks i {
  color: #00e0a1;
}

.demo-actions {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 10px;
}

.demo-actions button {
  min-height: 46px;
}

.demo-skip {
  display: block;
  min-height: 40px;
  margin: 7px auto 0;
  padding: 8px 12px;
  color: #91a1ad;
  font-size: 12px;
  font-weight: 600;
}

.demo-skip:hover,
.demo-skip:focus-visible {
  color: #fff;
}

@keyframes demoSheetIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 720px) {
  .demo-overlay { align-items: center; }
}