.snippet-presentation-letter {
  --letter-accent: #075965;
  --primary: #fff;
  --bg-envelope-color: #f5edd1;
  --envelope-tab: #ecdeb8;
  --envelope-cover: #e6cfa7;
  --shadow-color: rgb(0 0 0 / 20%);
  --txt-color: #444;
  display: grid;
  justify-items: center;
  gap: 24px;
  overflow: hidden;
  padding: 24px 12px 80px;
}

.snippet-presentation-letter .snippet-presentation-title {
  margin: 0;
  color: var(--letter-accent);
  font-size: 1.1rem;
}

.snippet-presentation-letter .envelope-wrapper {
  position: relative;
  background: var(--bg-envelope-color);
  box-shadow: 0 0 40px var(--shadow-color);
}

.snippet-presentation-letter .envelope {
  position: relative;
  width: min(300px, 82vw);
  height: 230px;
}

.snippet-presentation-letter .envelope::before {
  position: absolute;
  top: 0;
  z-index: 2;
  border-top: min(130px, 35.5vw) solid var(--envelope-tab);
  border-right: min(150px, 41vw) solid transparent;
  border-left: min(150px, 41vw) solid transparent;
  content: "";
  transform-origin: top;
  transition: transform 0.5s ease-in-out 0.7s;
}

.snippet-presentation-letter .envelope::after {
  position: absolute;
  z-index: 2;
  width: 0;
  height: 0;
  border-top: min(130px, 35.5vw) solid transparent;
  border-right: min(150px, 41vw) solid var(--envelope-cover);
  border-bottom: 100px solid var(--envelope-cover);
  border-left: min(150px, 41vw) solid var(--envelope-cover);
  content: "";
}

.snippet-presentation-letter .envelope > .letter {
  position: absolute;
  right: 20%;
  bottom: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 60%;
  height: 80%;
  padding: 12px;
  overflow: hidden;
  background: var(--primary);
  box-shadow: 0 0 5px var(--shadow-color);
  text-align: center;
  transition:
    bottom 1s ease-in-out,
    transform 1s ease-in-out;
}

.snippet-presentation-letter .letter .text {
  width: 100%;
  max-height: 100%;
  overflow: auto;
  color: var(--txt-color);
  font: 12px/1.45 Arial, Helvetica, sans-serif;
  opacity: 0;
  text-align: left;
  transition: opacity 250ms ease 1.3s;
}

.snippet-presentation-letter .letter .text p {
  margin: 0;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.snippet-presentation-letter .heart {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 4;
  width: 15px;
  height: 15px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: rgb(252 8 231);
  box-shadow: 0 1px 6px var(--shadow-color);
  cursor: pointer;
  transform: translate(-50%, -20%) rotate(-45deg);
  transition: transform 0.5s ease-in-out 1s;
}

.snippet-presentation-letter .heart::before,
.snippet-presentation-letter .heart::after {
  position: absolute;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: rgb(252 8 231);
  content: "";
}

.snippet-presentation-letter .heart::before {
  top: -7.5px;
}

.snippet-presentation-letter .heart::after {
  right: -7.5px;
}

.snippet-presentation-letter .heart:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}

.snippet-presentation-letter .flap .envelope::before {
  z-index: 0;
  transform: rotateX(180deg);
}

.snippet-presentation-letter .flap .envelope .letter {
  z-index: 3;
  bottom: 68px;
  transform: translateY(-12px) scale(1.18);
  transition-delay: 1s;
}

.snippet-presentation-letter .flap .envelope .letter .text {
  opacity: 1;
}

.snippet-presentation-letter .flap .heart {
  transform: translate(-50%, -20%) rotate(45deg);
  transition-delay: 0.4s;
}

@media (max-width: 420px) {
  .snippet-presentation-letter .envelope {
    height: 200px;
  }

  .snippet-presentation-letter .flap .envelope .letter {
    bottom: 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .snippet-presentation-letter *,
  .snippet-presentation-letter *::before,
  .snippet-presentation-letter *::after {
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}