@import url("https://fonts.googleapis.com/css2?family=Pattaya&display=swap");

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

body {
  background: linear-gradient(180deg, #0d0a1f 0%, #1a0f2e 20%, #2d1b3d 50%, #3d1f4a 80%, #1a0a2e 100%);
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(1px 1px at 8% 12%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 15% 8%, rgba(255, 255, 255, 0.8), transparent), radial-gradient(2px 2px at 22% 18%, white, transparent),
    radial-gradient(1px 1px at 28% 5%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 35% 25%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(2px 2px at 42% 15%, rgba(255, 200, 255, 0.9), transparent),
    radial-gradient(1px 1px at 48% 35%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 55% 8%, rgba(255, 255, 255, 0.9), transparent), radial-gradient(2px 2px at 62% 22%, white, transparent),
    radial-gradient(1px 1px at 68% 12%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 75% 28%, rgba(255, 220, 255, 0.9), transparent),
    radial-gradient(2px 2px at 82% 15%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 88% 32%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 92% 18%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 5% 42%, rgba(255, 255, 255, 0.8), transparent), radial-gradient(2px 2px at 12% 48%, white, transparent),
    radial-gradient(1px 1px at 18% 55%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 25% 45%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(2px 2px at 32% 58%, rgba(255, 200, 255, 0.8), transparent),
    radial-gradient(1px 1px at 38% 52%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 45% 62%, rgba(255, 255, 255, 0.7), transparent), radial-gradient(2px 2px at 52% 48%, white, transparent),
    radial-gradient(1px 1px at 58% 65%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 65% 42%, rgba(255, 220, 255, 0.8), transparent),
    radial-gradient(2px 2px at 72% 55%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 78% 68%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 85% 58%, rgba(255, 255, 255, 0.8), transparent), radial-gradient(2px 2px at 92% 45%, white, transparent),
    radial-gradient(1px 1px at 95% 62%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 10% 75%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(2px 2px at 18% 82%, rgba(255, 200, 255, 0.9), transparent),
    radial-gradient(1px 1px at 25% 88%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 32% 78%, rgba(255, 255, 255, 0.9), transparent), radial-gradient(2px 2px at 40% 85%, white, transparent),
    radial-gradient(1px 1px at 48% 92%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 55% 78%, rgba(255, 220, 255, 0.9), transparent),
    radial-gradient(2px 2px at 62% 88%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 70% 82%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 78% 95%, rgba(255, 255, 255, 0.8), transparent), radial-gradient(2px 2px at 85% 75%, white, transparent),
    radial-gradient(1px 1px at 92% 88%, rgba(255, 255, 255, 0.9), transparent),
    radial-gradient(1px 1px at 3% 20%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 11% 33%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 19% 67%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 27% 91%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 33% 13%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 39% 38%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 44% 71%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 51% 27%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 57% 93%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 63% 17%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 69% 51%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 74% 37%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 81% 73%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 87% 21%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 93% 56%, rgba(255, 255, 255, 0.8), transparent),
    radial-gradient(1px 1px at 97% 84%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 6% 64%, rgba(255, 200, 255, 0.7), transparent),
    radial-gradient(1px 1px at 14% 28%, rgba(255, 220, 255, 0.6), transparent),
    radial-gradient(1px 1px at 21% 49%, rgba(255, 200, 255, 0.8), transparent),
    radial-gradient(1px 1px at 29% 72%, rgba(255, 220, 255, 0.7), transparent),
    radial-gradient(1px 1px at 36% 96%, rgba(255, 200, 255, 0.6), transparent),
    radial-gradient(1px 1px at 43% 31%, rgba(255, 220, 255, 0.7), transparent),
    radial-gradient(1px 1px at 49% 59%, rgba(255, 200, 255, 0.8), transparent),
    radial-gradient(1px 1px at 56% 11%, rgba(255, 220, 255, 0.6), transparent),
    radial-gradient(1px 1px at 61% 81%, rgba(255, 200, 255, 0.7), transparent),
    radial-gradient(1px 1px at 67% 44%, rgba(255, 220, 255, 0.8), transparent),
    radial-gradient(1px 1px at 73% 69%, rgba(255, 200, 255, 0.6), transparent),
    radial-gradient(1px 1px at 79% 24%, rgba(255, 220, 255, 0.7), transparent),
    radial-gradient(1px 1px at 84% 87%, rgba(255, 200, 255, 0.8), transparent),
    radial-gradient(1px 1px at 89% 41%, rgba(255, 220, 255, 0.6), transparent),
    radial-gradient(1px 1px at 94% 66%, rgba(255, 200, 255, 0.7), transparent),
    radial-gradient(1px 1px at 99% 14%, rgba(255, 220, 255, 0.8), transparent);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  pointer-events: none;
  animation: starTwinkle 4s ease-in-out infinite;
}

@keyframes starTwinkle {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

/*----Variables converted to CSS custom properties ----*/
:root {
  --white: #fefefe;
  --color1: #ff90bb; /* Vibrant pink - main envelope */
  --color2: #e87aa4; /* Slightly deeper pink - side flaps */
  --color3: #d16b96; /* Deeper pink - bottom flap */
  --color4: #ffe4d6; /* Soft teal - paper only */

  --envelope-width: 350px;
  --envelope-height: 175px;

  --paper-width: 300px;
  --paper-height: 170px;

  --flap-height: 87.5px; /* calc(175px / 2) */
  --flap-width: 175px; /* calc(350px / 2) */
  --paper-border-radius: 3px;

  --rounded: 8px;
}

/* ===== RAIN TEXT EFFECT ===== */
.rain-text-cloud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.rain-word {
  position: absolute;
  left: var(--x, 0%);
  top: -10%;
  transform: translate(-50%, 0);
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #ff4da6 0%, #ff7acb 50%, #ffa8e0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 10px rgba(255, 93, 184, 0.6)) drop-shadow(0 0 20px rgba(255, 93, 184, 0.3));
  opacity: 0;
  animation: rainDown var(--dur, 8s) linear var(--delay, 0s) infinite;
  white-space: nowrap;
  font-size: clamp(14px, var(--size, 20px), 28px);
}

@keyframes rainDown {
  0% {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  5% {
    opacity: 1;
  }
  95% {
    opacity: 1;
  }
  100% {
    transform: translate(-50%, 110vh);
    opacity: 0;
  }
}

.rain-word:nth-child(1) {
  --x: 12%;
  --delay: 0s;
  --dur: 8s;
  --size: 22px;
}
.rain-word:nth-child(2) {
  --x: 30%;
  --delay: 1s;
  --dur: 7s;
  --size: 18px;
}
.rain-word:nth-child(3) {
  --x: 52%;
  --delay: 2s;
  --dur: 9s;
  --size: 24px;
}
.rain-word:nth-child(4) {
  --x: 74%;
  --delay: 3s;
  --dur: 8s;
  --size: 20px;
}
.rain-word:nth-child(5) {
  --x: 88%;
  --delay: 4s;
  --dur: 7s;
  --size: 18px;
}
.rain-word:nth-child(6) {
  --x: 18%;
  --delay: 5s;
  --dur: 8s;
  --size: 20px;
}
.rain-word:nth-child(7) {
  --x: 41%;
  --delay: 6s;
  --dur: 9s;
  --size: 25px;
}
.rain-word:nth-child(8) {
  --x: 66%;
  --delay: 7s;
  --dur: 8s;
  --size: 19px;
}
.rain-word:nth-child(9) {
  --x: 83%;
  --delay: 8s;
  --dur: 7s;
  --size: 22px;
}

/*----Components ----*/
.envelope-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: var(--envelope-width);
  height: var(--envelope-height);
  border-radius: var(--rounded);
  overflow: visible; /* Clips content to maintain border-radius */
  z-index: 10;
}

.envelope {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--color1);
  transform-style: preserve-3d;
  border-radius: var(--rounded);
}

.envelope .cover {
  position: relative;
}

.envelope .cover .top,
.envelope .cover .side,
.envelope .cover .bottom {
  position: absolute;
  width: var(--envelope-width);
  z-index: 2;
}

.envelope .cover .top {
  cursor: pointer;
  filter: drop-shadow(0px 2px 3px rgba(50, 0, 50, 0.1));
  transform-style: preserve-3d;
  perspective: 1000px;
}

.envelope .cover .top .top-cover {
  height: 100px; /* calc(175px - 30px) */
  background: var(--color1);
  -webkit-clip-path: polygon(0 0, 50% 100%, 100% 0);
  clip-path: polygon(0 0, 50% 100%, 100% 0);
  transform-style: preserve-3d;
  backface-visibility: visible;
  border-radius: var(--rounded) var(--rounded) 0 0;
}

.envelope .cover .side {
  filter: drop-shadow(0px -1px 3px rgba(50, 0, 50, 0.2));
  height: var(--envelope-height);
}

.envelope .cover .side .left,
.envelope .cover .side .right {
  position: absolute;
  background: var(--color2);
  width: var(--flap-width);
  height: var(--envelope-height);
}

.envelope .cover .side .left {
  left: 0;
  -webkit-clip-path: polygon(0 0, 0 100%, 100% 50%);
  clip-path: polygon(0 0, 0 100%, 100% 50%);
  border-radius: var(--rounded) 0 0 var(--rounded);
}

.envelope .cover .side .right {
  right: 0;
  -webkit-clip-path: polygon(0 50%, 100% 0, 100% 100%);
  clip-path: polygon(0 50%, 100% 0, 100% 100%);
  border-radius: 0 var(--rounded) var(--rounded) 0;
}

.envelope .cover .bottom {
  top: var(--flap-height);
  height: var(--flap-height);
  background: var(--color3);
  -webkit-clip-path: polygon(0 100%, 50% 0%, 100% 100%);
  clip-path: polygon(0 100%, 50% 0%, 100% 100%);
  border-radius: 0 0 var(--rounded) var(--rounded);
}

.envelope .paper-secondary {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: var(--paper-width);
  height: var(--paper-height);
  background: var(--color4);
  border-radius: var(--paper-border-radius);
  box-shadow: 0 0 2px rgba(50, 0, 50, 0.3);
  z-index: 0;
  border-radius: 8px;
  opacity: 0.7;
}

.envelope .paper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  position: relative;
  width: var(--paper-width);
  height: var(--paper-height);
  background: var(--color4);
  color: #50507f;
  border-radius: var(--paper-border-radius);
  box-shadow: 0 0 2px rgba(50, 0, 50, 0.3);
  z-index: 1;
  border-radius: 8px;
}

/* Flower corner decorations */
.envelope .paper .flower-decor {
  position: absolute;
  width: 50px;
  height: 50px;
  z-index: 2;
  opacity: 0.8;
  transition: all 0.3s ease;
}

.envelope .paper .flower-decor img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.envelope .paper .flower-decor.spinner {
  animation: flower-spinner 3s linear infinite;
}

@keyframes flower-spinner {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.envelope .paper .flower-decor.top-left {
  top: 0px;
  left: 0px;
  transform: rotate(0deg);
  width: 40px;
  height: 40px;
}

.envelope .paper .flower-decor.top-right {
  top: 0px;
  right: -2px;
  transform: rotate(15deg) scaleX(-1);
  width: 35px;
  height: 35px;
}

.envelope .paper .flower-decor.bottom-left {
  bottom: 0px;
  left: -3px;
  transform: rotate(180deg) scaleY(-1);
}

.envelope .paper .flower-decor.bottom-center {
  bottom: 0px;
  left: 50%;
  transform: translateX(-50%);
}
.envelope .paper .flower-decor.bottom-right {
  bottom: -2px;
  right: 0px;
  transform: rotate(180deg) scale(-1, -1);
  width: 40px;
  height: 40px;
}

.envelope .paper .flower-decor:hover {
  opacity: 1;
  transform: scale(1.1) rotate(var(--rotation));
}

.envelope .paper .flower-decor.top-left:hover {
  --rotation: -20deg;
}

.envelope .paper .flower-decor.top-right:hover {
  --rotation: 20deg;
  transform: scaleX(-1) scale(1.1) rotate(var(--rotation));
}

.envelope .paper .flower-decor.bottom-left:hover {
  --rotation: 20deg;
  transform: scaleY(-1) scale(1.1) rotate(var(--rotation));
}

.envelope .paper .flower-decor.bottom-right:hover {
  --rotation: -20deg;
  transform: scale(-1, -1) scale(1.1) rotate(var(--rotation));
}

.envelope .paper .message {
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: "Pattaya", cursive;
  text-align: center;
  color: #ff90bb;
}

.envelope .paper .message h2 {
  margin-bottom: 10px;
  font-size: 28px;
  text-wrap: auto;
}

.envelope .paper .message p {
  font-size: 16px;
  color: #666;
}

.envelope .paper .close {
  cursor: pointer;
  position: absolute;
  font-size: 12px;
  top: 10px;
  right: 10px;
  z-index: 10;
  color: #ff90bb;
  background: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.envelope .paper .close:hover {
  background: #ff90bb;
  color: white;
  transform: rotate(90deg);
}

/* Hidden utility class */
.hidden {
  display: none !important;
}

/* Typing animation */
.typing-text {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
}

.custom-text {
  opacity: 0;
  display: inline-block;
  margin-left: 10px;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.custom-text.show {
  opacity: 1;
  transform: translateY(0);
}

@keyframes blink-cursor {
  from,
  to {
    border-color: transparent;
  }
  50% {
    border-color: #ff90bb;
  }
}

/* Two-state content areas */
.envelope .paper .state-1-content {
  transition: opacity 0.3s ease;
}

.envelope .paper .state-2-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2px;
  transition: opacity 0.3s ease;
}

.envelope .paper .state-2-content .content-area {
  flex: 0 0 calc(75% - 10px);
  overflow-y: auto;
  padding-right: 10px;
  font-family: "Satisfy", cursive;
  /* border: 1px dotted #ff90bb; */
  border-radius: 6px;
  margin: 0px auto;
  padding: 12px;
}

.envelope .paper .state-2-content .content-area h2 {
  color: #ff90bb;
  margin-bottom: 15px;
  font-size: 28px;
}

.envelope .paper .state-2-content .content-area p {
  font-size: 16px;
  color: #666;
  margin-bottom: 12px;
  line-height: 1.6;
}

.envelope .paper .state-2-content .slideshow-area {
  flex: 0 0 25%;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding-top: 10px;
}

.envelope .paper .state-2-content .slideshow-container {
  width: 150px;
  height: 100px;
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.envelope .paper .state-2-content .slideshow-container .slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.envelope .paper .state-2-content .slideshow-container .slide.active {
  opacity: 1;
}

/* Expand button */
.envelope .paper .expand-btn {
  cursor: pointer;
  position: absolute;
  font-size: 14px;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: #ff90bb;
  background: white;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(255, 144, 187, 0.3);
}

.envelope .paper .expand-btn:hover {
  background: #ff90bb;
  color: white;
  transform: translateX(-50%) scale(1.1);
}

.envelope .paper .expand-btn.expanded {
  transform: translateX(-50%) rotate(180deg);
}

.envelope .paper .expand-btn.expanded:hover {
  transform: translateX(-50%) rotate(180deg) scale(1.1);
}

/* State 2 expanded paper */
.envelope .paper.state-2 {
  height: calc(var(--paper-height) * 1.5);
  transition: height 0.5s ease;
}

.envelope-container .shadow {
  position: absolute;
  top: 250%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 30px;
  width: 160px;
  border-radius: 50%;
  background-image: radial-gradient(rgba(0, 0, 50, 0.3), rgba(250, 250, 250, 0));
  filter: blur(5px);
}

/* Envelope Seal */
@keyframes heartbeat {
  0%,
  100% {
    transform: translateX(-50%) scale(1);
  }
  10%,
  30% {
    transform: translateX(-50%) scale(1.1);
  }
  20%,
  40% {
    transform: translateX(-50%) scale(1);
  }
}

.envelope .cover .top .seal {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #fff0f6, #ffe4f0);
  border-radius: 50%;
  border: 3px solid #ff90bb;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  box-shadow: 0 4px 8px rgba(255, 144, 187, 0.3);
  transition: opacity 0.3s ease, visibility 0.3s ease;
  animation: heartbeat 1.5s ease-in-out infinite;
  cursor: pointer;
}

.envelope .cover .top .seal.hidden {
  opacity: 0;
  visibility: hidden;
}

.envelope .cover .top .seal .seal-icon {
  width: 70%;
  height: 70%;
  object-fit: contain;
  filter: invert(56%) sepia(65%) saturate(1500%) hue-rotate(305deg) brightness(100%) contrast(101%);
  transition: all 0.3s ease;
}

.envelope .cover .top .seal:hover {
  animation: none;
  transform: translateX(-50%) scale(1.15);
  box-shadow: 0 6px 12px rgba(255, 144, 187, 0.5);
}

/* Heart Rain Styles */
.heart-rain {
  position: absolute;
  top: -10%;
  animation: rain-fall 8s linear infinite;
  opacity: 0;
  filter: drop-shadow(0 0 8px rgba(255, 77, 166, 0.6));
}

.heart-rain img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.heart-1 {
  left: 10%;
  width: 45px;
  height: 45px;
  animation-duration: 7s;
  animation-delay: 0s;
}

.heart-2 {
  left: 25%;
  width: 60px;
  height: 60px;
  animation-duration: 9s;
  animation-delay: 1.5s;
}

.heart-3 {
  left: 40%;
  width: 35px;
  height: 35px;
  animation-duration: 6.5s;
  animation-delay: 3s;
}

.heart-4 {
  left: 55%;
  width: 50px;
  height: 50px;
  animation-duration: 8s;
  animation-delay: 2s;
}

.heart-5 {
  left: 70%;
  width: 40px;
  height: 40px;
  animation-duration: 7.5s;
  animation-delay: 4.5s;
}

.heart-6 {
  left: 85%;
  width: 55px;
  height: 55px;
  animation-duration: 8.5s;
  animation-delay: 1s;
}

.heart-7 {
  left: 15%;
  width: 38px;
  height: 38px;
  animation-duration: 6s;
  animation-delay: 5s;
}

.heart-8 {
  left: 48%;
  width: 65px;
  height: 65px;
  animation-duration: 9.5s;
  animation-delay: 3.5s;
}

.heart-9 {
  left: 62%;
  width: 42px;
  height: 42px;
  animation-duration: 7s;
  animation-delay: 6s;
}

.heart-10 {
  left: 78%;
  width: 52px;
  height: 52px;
  animation-duration: 8s;
  animation-delay: 2.5s;
}

@keyframes rain-fall {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(110vh);
    opacity: 0;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-25px) rotate(8deg);
  }
  50% {
    transform: translateY(-15px) rotate(-8deg);
  }
  75% {
    transform: translateY(-20px) rotate(5deg);
  }
}

@keyframes float-spin {
  0%,
  100% {
    transform: translateY(0) rotate(0deg) scale(1);
  }
  25% {
    transform: translateY(-30px) rotate(90deg) scale(1.05);
  }
  50% {
    transform: translateY(-20px) rotate(180deg) scale(0.95);
  }
  75% {
    transform: translateY(-25px) rotate(270deg) scale(1.02);
  }
}

@keyframes sway {
  0%,
  100% {
    transform: translateX(0) rotate(0deg);
  }
  25% {
    transform: translateX(-15px) rotate(-10deg);
  }
  50% {
    transform: translateX(15px) rotate(10deg);
  }
  75% {
    transform: translateX(-10px) rotate(-5deg);
  }
}

@keyframes twirl {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
    opacity: 0.55;
  }
  50% {
    transform: rotate(360deg) scale(1.15);
    opacity: 0.75;
  }
}

@keyframes bounce-heart {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  25% {
    transform: translateY(-15px) scale(1.2);
  }
  50% {
    transform: translateY(0) scale(0.9);
  }
  75% {
    transform: translateY(-8px) scale(1.1);
  }
}

@keyframes sparkle {
  0%,
  100% {
    transform: scale(0.8) rotate(0deg);
    opacity: 0.9;
  }
  25% {
    transform: scale(1.2) rotate(90deg);
    opacity: 1;
  }
  50% {
    transform: scale(0.9) rotate(180deg);
    opacity: 0.7;
  }
  75% {
    transform: scale(1.1) rotate(270deg);
    opacity: 0.95;
  }
}

@keyframes sway {
  0% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(5deg);
  }
  50% {
    transform: rotate(0deg);
  }
  75% {
    transform: rotate(-5deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

/* Apply the animation to the whole flower group */
.flower-sway {
  transform-origin: center bottom;
  animation: sway 3s ease-in-out infinite;
}

/* Envelope movement animation */

.envelope .paper .flower-decor.move-right {
  position: absolute;
  left: 40px;
  animation: move-right-left 11s linear infinite;
}

@keyframes move-right-left {
  0% {
    left: 40px;
    transform: scaleX(-1);
  }
  50% {
    left: 210px;
    transform: scaleX(-1);
  }
  50.01% {
    left: 210px;
    transform: scaleX(1);
  }
  100% {
    left: 50px;
    transform: scaleX(1);
  }
}