body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  background: rgba(0, 5, 24, 1);
}
.error-text {
  color: red;
  font-size: 14px;
}
.mask {
  background: rgb(0, 0, 0, 0.8);
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 100;
  display: none;
}
.message-box {
  width: 350px;
  background-color: #fff;
  border-radius: 10px;
  text-align: left;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 20px;
  box-sizing: border-box;
  display: none;
}
.message-box img {
  width: 30px;
  vertical-align: bottom;
}
.message-box span {
  position: relative;
  top: -3px;
  margin-left: 5px;
}
.message-box .back {
  text-align: right;
  margin-top: 20px;
}
.questionnaire {
  width: 350px;
  z-index: 99;
  position: relative;
  margin: auto;
  top: 50%;
  background-color: #fff;
  border-radius: 10px;
  transform: translate(0, -50%);
}
.questionnaire .top {
  height: 50px;
  background: rgb(214, 237, 252);
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  display: flex;
  justify-content: space-between;
}
.questionnaire .top .left img {
  width: 40px;
  margin: 6px 20px;
}
.questionnaire .top .right {
  margin: 16px 20px;
  font-size: 14px;
}
.questionnaire .top .right #active {
  color: rgb(111, 191, 248);
}
.questionnaire .top .middle {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translate(-50%, 0);
}
.questionnaire .top .middle img {
  width: 60px;
}
.questionnaire .bottom {
  padding: 20px;
}
.questionnaire .bottom .answer .list {
  margin-top: 15px;
}
.questionnaire .bottom .answer .list .item {
  border: 1px solid #ccc;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 5px;
}
input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid rgb(217, 217, 217);
  outline: none;
  transition: background-color 0.3s ease;
  background: rgb(248, 248, 248);
  vertical-align: bottom;
}

input[type="radio"]:checked {
  background-color: pink;
}
input[type="text"] {
  border: 1px solid #ccc;
  border-radius: 5px;
  height: 30px;
  width: 100%;
  font-size: 16px;
  box-sizing: border-box;
}
input:focus-visible {
  outline: none;
}
.question-con {
  display: none;
}
.questionnaire .bottom .button {
  text-align: end;
  margin-top: 15px;
}
.questionnaire .bottom .button button {
  background: #fff;
  border: none;
}
.questionnaire .bottom .submit {
  text-align: center;
  margin: 20px 0 0;
}
.pink-button {
  background: pink;
  border: 0;
  width: 80px;
  height: 40px;
  border-radius: 20px;
  font-size: 16px;
}
.questionnaire .bottom #summary {
  text-align: center;
}
canvas {
  position: relative;
  top: -200px;
}

.envelope {
  width: 280px;
  height: 160px;
  background: rgb(252, 252, 198);
  position: relative;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
  border-radius: 5px;
  margin: auto;
  top: 50%;
  transform: translate(0, -50%);
  z-index: 99;
  display: none;
}

.envelope.active {
  transition: 0.8s 1s transform;
  transform: translateY(50px);
}

.envelope.active::before {
  animation: hide 0.2s 1s ease-out;
  animation-fill-mode: forwards;
}

.envelope.active::after {
  animation: afterUp 0.2s 1s ease-out;
  animation-fill-mode: forwards;
}

.envelope.active .top {
  transition: 0.5s all;
  transition-delay: 1s;
  transform: rotateX(180deg) translateY(-2px) scaleY(1.5);
}

.envelope.active .card {
  animation: show 0.8s 1.5s ease-out;
  animation-fill-mode: forwards;
  z-index: 9;
}

.envelope.active .card p {
  animation: showContent 2.5s 1s ease-out forwards;
}

.letter-header {
  text-align: left;
  margin-bottom: 20px;
}
.letter-footer {
  text-align: right;
}
.letter-header h1 {
  font-size: 20px;
  margin-bottom: 10px;
}

.letter-body {
  margin-bottom: 20px;
}

.letter-body p {
  margin: 10px 0;
}

.letter-footer p {
  margin: 5px 0;
}
@keyframes show {
  0% {
    transform: scaleY(0.6) translateY(20px);
    opacity: 0.7;
  }

  100% {
    transform: scaleY(1) translateY(-80px);
    opacity: 1;
  }
}

@keyframes hide {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

@keyframes afterUp {
  0% {
    z-index: 8;
  }

  100% {
    z-index: 10;
  }
}

@keyframes heartBeat {
  0% {
    transform: rotate(45deg) scale(1);
  }

  14% {
    transform: rotate(45deg) scale(1.3);
  }

  28% {
    transform: rotate(45deg) scale(1);
  }

  42% {
    transform: rotate(45deg) scale(1.3);
  }

  70% {
    transform: rotate(45deg) scale(1);
  }

  100% {
    transform: rotate(0deg) translateY(5px);
  }
}

.envelope.active .heart {
  animation: heartBeat 1s;
  animation-fill-mode: forwards;
}

.envelope::after {
  content: "";
  display: block;
  position: absolute;
  border-width: 80px 140px;
  top: 0;
  border-style: solid;
  border-color: transparent rgb(252, 240, 175) rgb(252, 240, 175)
    rgb(252, 240, 175);
  transition: 0.3s all;
  transform: rotateX(0deg);
  transform-origin: 50% 0%;
  z-index: 6;
  border-radius: 5px;
}

.envelope::before {
  content: "";
  display: block;
  position: absolute;
  border-width: 80px 140px;
  top: 0;
  border-style: solid;
  border-color: rgba(0, 0, 0, 0.3) transparent transparent transparent;
  transition: 0.3s all;
  transform-origin: 50% 0%;
  z-index: 7;
  filter: blur(2px);
  border-radius: 5px;
}

.envelope .top {
  position: absolute;
  border-width: 80px 140px;
  top: 0;
  left: 0;
  border-style: solid;
  border-color: rgb(252, 240, 175) transparent transparent transparent;
  transform: rotateX(0deg);
  transform-origin: 50% 0%;
  z-index: 8;
  border-radius: 5px;
}

.heart {
  position: absolute;
  width: 15px;
  height: 15px;
  transform: rotate(45deg);
  z-index: 520;
  background-color: rgb(248, 82, 82);
  left: 50%;
  margin-left: -2px;
  top: 75px;
  transition: 0.3s all;
  transform-origin: 50% 0%;
  box-shadow: -3px 3px 16px rgba(0, 0, 0, 0.6);
  cursor: pointer;
}

.heart::before {
  content: "";
  display: block;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  position: absolute;
  background-color: rgb(248, 82, 82);
  left: -8px;
  top: 0px;
}

.heart::after {
  content: "";
  display: block;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  position: absolute;
  background-color: rgb(248, 82, 82);
  right: 0px;
  top: -8px;
}

.card {
  width: 240px;
  height: 280px;
  background-color: #f4f4f4;
  position: absolute;
  z-index: 5;
  left: 50%;
  margin-left: -120px;
  bottom: 20px;
  transition: 0.2s 0.1s all;
  box-shadow: 1px 1px 15px rgba(0, 0, 0, 0.2);
  opacity: 0;
  box-sizing: border-box;
  padding: 5% 6.8%;
  filter: contrast(20);
  overflow-y: scroll;
}

.card p {
  font-size: 16px;
  font-family: fantasy;
  line-height: 1.5;
  /* -webkit-text-stroke: 1px rgb(248, 82, 82); */
  text-shadow: -1px 0 1px #f5e6c2, 0 1px 2px #fff0c9;
  font-family: "Arial", sans-serif;
}

@keyframes showContent {
  0% {
    filter: blur(12px);
  }

  100% {
    filter: blur(0px);
  }
}