* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  font-size: 10px;
}

html,
body {
  background-image: url("../resources/img/SVG/Asset\ 14.webp");
  background-position: top;
  background-repeat: no-repeat;
  background-size: 200vw 200vw;
  color: #fff;
  font-family: "Nunito", sans-serif;
}

p {
  font-size: 2.4rem;
}

.content {
  position: absolute;
  overflow-x: hidden;
  height: 100vh;
  width: 100vw;
}

body::after {
  background-color: rgb(0, 0, 0);
  content: " ";
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.5;
  background-repeat: no-repeat;
  background-position: 50% 0;
  -ms-background-size: cover;
  -o-background-size: cover;
  -moz-background-size: cover;
  -webkit-background-size: cover;
  background-size: cover;
}
.decoration {
  position: relative;
  height: 60vh;
  width: 100vw;
  overflow: hidden;
}

.balloon {
  position: absolute;
  height: 60vh;
  width: 90vw;
  top: -2%;
}

.balloon-left {
  left: -45%;
  background-image: url("../resources/img/SVG/Asset\ 4.svg");
  background-size: 100%;
  background-position: top right;
  content: ".";
  background-repeat: no-repeat;
  animation: balloon-move 4s linear 0s infinite;
}

.balloon-right {
  right: -45%;
  background-image: url("../resources/img/SVG/Asset\ 6.svg");
  background-size: 100%;
  background-position: top left;
  content: ".";
  background-repeat: no-repeat;
  animation: balloon-move 4s linear 0s infinite reverse;
}

.flag {
  position: absolute;
  height: 60vh;
  width: 65vw;
  top: 35%;
}

.flag-left {
  left: -10%;
  background-image: url("../resources/img/SVG/Asset\ 2.svg");
  background-size: 100%;
  content: ".";
  background-repeat: no-repeat;
}

.flag-right {
  right: -10%;
  background-image: url("../resources/img/SVG/Asset\ 5.svg");
  background-size: 100%;
  content: ".";
  background-repeat: no-repeat;
}

.frame {
  position: relative;
  width: 100vw;
  transform: translate(0, -40%);
  text-align: center;
  opacity: 0;
  display: none;
}

.img-back {
  position: relative;
  display: inline-block;
  background-color: #ffa8dc;
  height: 50vw;
  width: 50vw;
  border-radius: 50%;
}

.bd-pic {
  position: absolute;
  height: 83.33333333%;
  width: 83.33333333%;
  border-color: #fff;
  border-style: dotted;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.cap {
  position: absolute;
  height: 33.33333333%;
  top: -15%;
  left: 50%;
}

.confetti {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 150%;
  width: 150%;
}

.cake {
  position: absolute;
  top: 90%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 70%;
  width: 70%;
}

.HBD-text {
  position: absolute;
  display: inline-block;
  width: 65%;
  /* height: 100%; */
  top: 85%;
  left: 50%;
  transform: translate(-50%, 60%);
}

.HBD {
  font-size: 2.4rem;
  padding: 0;
}

.name {
  font-size: 3.2rem;
  padding: 0;
}

.text-frame {
  position: relative;
  transform: translateY(30%);
  display: inline-block;
  overflow-y: hidden;
  height: 40vh;
  width: 70vw;
}

.text-frame p {
  position: absolute;
  top: 50%;
  transform: translateY(0%);
}

.blackbox,
.whitebox,
.giftbox,
.empty-room {
  text-align: center;
  position: absolute;
  height: 100vh;
  width: 100vw;
}

.blackbox {
  background-color: #000;
}

.whitebox {
  background-color: #fff;
}

.giftbox,
.empty-room {
  background-color: #141852;
}

.switch,
.gift,
.door-in,
.door-out {
  position: absolute;
  display: none;
  height: 20vw;
  width: 20vw;
  top: 60%;
  left: 50%;
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  animation: heart-beat 2s linear 0s infinite alternate;
}

.switch {
  background-image: url("../resources/img/SVG/Asset\ 10.svg");
}

.gift {
  background-image: url("../resources/img/SVG/Asset\ 9.svg");
}

.door-in,
.door-out {
  background-image: url("../resources/img/SVG/Asset\ 12.svg");
}

.btn-ref {
  position: absolute;
  top: 90%;
  left: 50%;
  text-align: center;
  transform: translateX(-50%);
  color: #fff;
  display: none;
}

.btn-ref p {
  font-size: 1.8rem;
}

.bb-text,
.gift-text,
.hall-text,
.room-text {
  display: inline-block;
  text-align: center;
  position: absolute;
  width: 80vw;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  font-size: 3.2rem;
}

.hallway {
  overflow: hidden;
}

.hall {
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* =======================Animation===================== */

.hidden {
  display: none;
}
.fade-in {
  animation: fade 2s ease-in 0s;
}

.appear {
  animation: fade 2s linear 0s 1 reverse;
}

.read {
  animation: read 4s linear 0s;
}

.move-up {
  animation: move-up 80s linear 3s;
}

@keyframes fade {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

@keyframes read {
  0% {
    opacity: 0;
  }

  25% {
    opacity: 1;
  }

  75% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}

@keyframes heart-beat {
  0% {
    transform: translate(-50%, -50%) scale(1, 1);
  }

  50% {
    transform: translate(-50%, -50%) scale(1.25, 1.25);
  }

  100% {
    transform: translate(-50%, -50%) scale(1, 1);
  }
}

@keyframes balloon-move {
  0% {
    transform: translateY(0) rotate(0);
  }
  25% {
    transform: translateY(5%) rotate(3deg);
  }
  50% {
    transform: translateY(0) rotate(0);
  }
  75% {
    transform: translateY(-5%) rotate(-3deg);
  }
  100% {
    transform: translateY(0) rotate(0);
  }
}

@keyframes move-up {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-100%);
  }
}

/*** Media Queries ***/
@media only screen and (max-width: 330px) {
  html {
    font-size: 8px;
  }
}

@media only screen and (min-width: 420px) {
  html {
    font-size: 11px;
  }
}

@media only screen and (min-width: 480px) {
  html {
    font-size: 13px;
  }
}

@media only screen and (min-width: 550px) {
  html {
    font-size: 15px;
  }
}

@media only screen and (min-width: 640px) {
  html {
    font-size: 17px;
  }
}