.lab-notes-promo {
  position: fixed;
  z-index: 40;
  right: 24px;
  bottom: 24px;
  width: min(420px, calc(100vw - 32px));
  padding: 20px;
  border: 2px solid var(--ink);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: 8px 8px 0 var(--ink);
  color: var(--ink);
  opacity: 0;
  transform: translateY(28px) rotate(1deg);
  pointer-events: none;
  transition: width .28s ease, opacity .35s ease, transform .35s ease;
}
.lab-notes-promo.is-visible {
  opacity: 1;
  transform: translateY(0) rotate(-.4deg);
  pointer-events: auto;
}
.lab-notes-promo.is-revealed { width: min(500px, calc(100vw - 32px)); }
.lab-notes-promo__tag {
  display: inline-block;
  padding: 5px 8px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--paper);
  font: 600 .62rem/1 var(--mono);
  letter-spacing: .1em;
}
.lab-notes-promo__close {
  position: absolute;
  right: 12px;
  top: 10px;
  width: 32px;
  height: 32px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 1.45rem;
  cursor: pointer;
}
.lab-notes-promo__intro { padding-top: 17px; }
.lab-notes-promo__intro h2 {
  margin: 0;
  font: 700 1.45rem/1.08 var(--display);
  letter-spacing: -.015em;
}
.lab-notes-promo__intro h2 b { color: var(--terra); }
.lab-notes-promo__intro > p {
  margin: 12px 0 17px;
  font-size: .94rem;
  line-height: 1.48;
}
.lab-notes-promo__pull {
  width: 100%;
  padding: 14px 17px;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: #d7ff43;
  box-shadow: 4px 4px 0 var(--ink);
  color: var(--ink);
  font: 700 .73rem/1 var(--mono);
  letter-spacing: .06em;
  text-align: left;
  cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease;
}
.lab-notes-promo__pull span { float: right; font-size: 1rem; }
.lab-notes-promo__pull:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--ink); }
.lab-notes-promo__skip {
  display: block;
  margin-top: 13px;
  color: var(--ink);
  font: 600 .67rem/1.3 var(--mono);
  text-align: center;
  text-underline-offset: 3px;
}
.lab-notes-promo__reveal { padding-top: 15px; }
.lab-notes-promo__card {
  padding: 17px;
  border: 1.5px solid var(--ink);
  border-radius: 16px;
  background: #d7ff43;
  animation: lab-note-open .34s ease both;
}
.lab-notes-promo__card > small,
.lab-notes-promo__card div > b {
  font: 700 .62rem/1.2 var(--mono);
  letter-spacing: .08em;
}
.lab-notes-promo__card > h2 {
  margin: 10px 0 15px;
  font: 700 1.35rem/1.08 var(--display);
  letter-spacing: -.015em;
}
.lab-notes-promo__card div + div { margin-top: 12px; }
.lab-notes-promo__card div > b {
  display: block;
  margin-bottom: 3px;
  color: #8f311b;
}
.lab-notes-promo__card p {
  margin: 0;
  color: var(--ink);
  font-size: .86rem;
  line-height: 1.42;
}
.lab-notes-promo__unlock {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 15px;
  padding-top: 15px;
}
.lab-notes-promo__unlock p {
  margin: 0;
  font: 500 .7rem/1.4 var(--mono);
}
.lab-notes-promo__unlock p strong { display: block; }
.lab-notes-promo__unlock > a {
  padding: 12px 14px;
  border-radius: 999px;
  background: var(--terra);
  color: white;
  text-decoration: none;
  font: 700 .65rem/1 var(--mono);
  letter-spacing: .04em;
  white-space: nowrap;
}
@keyframes lab-note-open {
  from { opacity: 0; transform: translateY(12px) rotate(-1deg) scale(.98); }
  to { opacity: 1; transform: translateY(0) rotate(0) scale(1); }
}
@media (max-width: 700px) {
  .lab-notes-promo,
  .lab-notes-promo.is-revealed { right: 16px; bottom: 16px; width: calc(100vw - 32px); }
  .lab-notes-promo { max-height: calc(100vh - 32px); overflow-y: auto; }
  .lab-notes-promo__intro h2 { font-size: 1.28rem; }
  .lab-notes-promo__unlock { grid-template-columns: 1fr; }
  .lab-notes-promo__unlock > a { text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  .lab-notes-promo,
  .lab-notes-promo__pull { transition: none; }
  .lab-notes-promo__card { animation: none; }
}