#opening-letter.opening-letter {
  width: min(1240px, calc(100vw - 56px));
  max-width: none;
  max-height: min(92dvh, 940px);
  padding: 0;
  overflow: hidden;
  border: 0;
  color: #263d35;
  background: transparent;
  box-shadow: none;
}

#opening-letter::backdrop {
  background: radial-gradient(ellipse at 50% 42%, #f5e9d1bb 0, #182a24e8 78%);
  backdrop-filter: blur(5px);
}

.opening-letter__surface {
  position: relative;
  min-height: min(720px, 88dvh);
  overflow: hidden;
  background:
    radial-gradient(ellipse at 12% 6%, #ffffff91, transparent 35%),
    radial-gradient(ellipse at 94% 97%, #d6c29b4f, transparent 37%),
    #f4efdf;
  box-shadow: 0 26px 90px #07140f48, inset 0 0 0 1px #c9b994;
}

.opening-letter__invite {
  display: grid;
  justify-items: center;
  align-content: center;
  min-height: min(720px, 88dvh);
  padding: 34px 28px 30px;
  text-align: center;
}

.opening-letter__eyebrow {
  margin: 0 0 14px;
  color: #8c6e4f;
  font: 600 10px/1.4 Inter, Arial, sans-serif;
  letter-spacing: .19em;
}

.opening-letter__invite h1 {
  margin: 0;
  color: #243a33;
  font: 400 clamp(28px, 3.2vw, 43px)/1.18 Fraunces, "Noto Serif SC", Georgia, serif;
}
.opening-letter [tabindex="-1"]:focus-visible { outline: none; }

.opening-letter__invite > p:not(.opening-letter__eyebrow) {
  margin: 12px 0 0;
  color: #68756a;
  font: 400 14px/1.6 Inter, Arial, sans-serif;
}

.opening-envelope-button {
  display: block;
  width: min(450px, 76vw);
  margin: 10px 0 -3px;
  border: 0;
  padding: 0;
  border-radius: 12px;
  appearance: none;
  background: transparent;
  cursor: pointer;
  filter: drop-shadow(0 20px 18px #56462c17);
  transition: filter .25s ease, transform .25s ease;
}

.opening-envelope-button:hover,
.opening-envelope-button:focus-visible {
  filter: drop-shadow(0 28px 23px #56462c2b);
  transform: translateY(-4px) rotate(-.25deg);
}
.opening-envelope-button:focus-visible { outline: 3px solid #a84e3e; outline-offset: 7px; }

.opening-envelope { display: block; width: 100%; height: auto; overflow: visible; }
.opening-envelope__sheet { transform: translateY(150px) scale(.86); transform-box: fill-box; transform-origin: center; opacity: 0; }
.opening-envelope__flap { transform-box: fill-box; transform-origin: 50% 0%; }
.opening-envelope__seal { transform-box: fill-box; transform-origin: center; }
.opening-envelope__fragments { fill: #a3493e; opacity: 0; }

.opening-letter__seal-note {
  margin: -3px 0 11px !important;
  color: #8b7253 !important;
  font: italic 12px/1.5 Fraunces, Georgia, serif !important;
}

.opening-letter__open,
.opening-letter__continue {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid #71816c;
  color: #314d40;
  background: #e8eadb;
  font: 500 13px/1 Inter, Arial, sans-serif;
  transition: color .18s, background .18s, transform .18s;
}

.opening-letter__open:hover,
.opening-letter__continue:hover { color: #fff9ed; background: #526f5d; transform: translateY(-1px); }
.opening-letter__open span,.opening-letter__continue span { font-size: 17px; }

.opening-letter__story {
  min-height: min(720px, 88dvh);
  max-height: min(850px, 92dvh);
  flex-direction: column;
  padding: clamp(24px, 3.4vw, 44px) clamp(24px, 5.2vw, 68px) 18px;
}

.opening-letter__story:not([hidden]) { display: flex; }

.opening-letter__spread {
  display: grid;
  flex: 1;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), #cbbd9e calc(50%), #fffdf6 calc(50% + 2px), transparent calc(50% + 4px)),
    linear-gradient(90deg, #fcf9ef, #f8f4e8 49.8%, #f4f0e4 50.2%, #fcf9ef);
  box-shadow: 0 10px 30px #66553912;
}

.opening-letter__page {
  min-width: 0;
  padding: clamp(22px, 3.1vw, 42px) clamp(22px, 3.5vw, 48px) 22px;
  color: #39483d;
  font: 400 clamp(15px, 1.12vw, 17px)/1.6 Inter, "Noto Sans", Arial, sans-serif;
}

.opening-letter__page--right { padding-top: clamp(34px, 3.8vw, 50px); }
.opening-letter__page p { margin: 0 0 13px; }
.opening-letter__page strong { color: #394f3d; font-weight: 650; }
.opening-letter__page--left .opening-letter__eyebrow { margin-bottom: 12px; font-size: 9px; }
.opening-letter__page h1 { margin: 0 0 6px; color: #243a33; font: 400 clamp(29px, 3vw, 43px)/1.1 Fraunces, "Noto Serif SC", Georgia, serif; }
.opening-letter__page .opening-letter__subtitle { margin: 0 0 25px; color: #9a6d4d; font: italic 17px/1.4 Fraunces, Georgia, serif; }
.opening-letter__page blockquote {
  margin: 13px 0 0;
  padding: 6px 0 0 17px;
  border-left: 2px solid #b35640;
  color: #7d4837;
  font: italic 600 clamp(15px, 1.35vw, 19px)/1.5 Fraunces, "Noto Serif SC", Georgia, serif;
}

.opening-letter__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 18px;
  color: #8c806b;
  font: 600 9px/1.4 Inter, Arial, sans-serif;
  letter-spacing: .14em;
}

.opening-letter__continue { min-width: 210px; min-height: 48px; letter-spacing: 0; }

@media (max-width: 760px) {
  #opening-letter.opening-letter { width: 100vw; max-width: none; max-height: 100dvh; height: 100dvh; margin: 0; }
  .opening-letter__surface { min-height: 100dvh; height: 100dvh; overflow-y: auto; }
  .opening-letter__invite { min-height: 100dvh; padding: 40px 22px; }
  .opening-letter__invite h1 { max-width: 12ch; }
  .opening-envelope-button { width: min(430px, 94vw); margin-block: 24px 12px; }
  .opening-letter__story { min-height: 100dvh; max-height: none; padding: 34px 22px 24px; }
  .opening-letter__spread { display: block; flex: initial; background: linear-gradient(#fcf9ef, #f8f4e8); }
  .opening-letter__page,.opening-letter__page--right { padding: 27px 22px; }
  .opening-letter__page--right { border-top: 1px solid #d8ccb2; }
  .opening-letter__page { font-size: 16px; line-height: 1.75; }
  .opening-letter__page p { margin-bottom: 18px; }
  .opening-letter__page .opening-letter__subtitle { margin-bottom: 22px; }
  .opening-letter__footer { flex-direction: column; align-items: stretch; padding: 20px 2px 8px; }
  .opening-letter__footer>span { text-align: center; }
  .opening-letter__continue { width: 100%; }
}

@media (max-height: 680px) and (min-width: 761px) {
  #opening-letter.opening-letter { max-height: 96dvh; }
  .opening-letter__surface,.opening-letter__invite,.opening-letter__story { min-height: 0; }
  .opening-letter__invite { padding-block: 16px; }
  .opening-envelope-button { width: min(360px, 58vw); }
  .opening-letter__page { padding-top: 22px; padding-bottom: 12px; font-size: 13px; line-height: 1.52; }
  .opening-letter__page p { margin-bottom: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  .opening-letter__surface *, .opening-letter__surface *::before, .opening-letter__surface *::after { transition-duration: .01ms !important; }
}