html,
body {
  height: 100%;
  margin: 0;
  font-family: "Kaushan Script", "Sail", cursive;
}

body {
  background: #e74;
  background-image: radial-gradient(
    circle at center bottom,
    #e9b64b,
    #c76075 15%,
    #0d0d4b 75%,
    #190e14 90%
  );
  overflow: hidden;
}

.birthday-stage {
  position: fixed;
  inset: 0;
  background: #f7a11a;
  overflow: hidden;
}

.birthday-stage.is-greeting {
  background-image: url("TANDUAY.svg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.birthday-stage.is-hidden {
  display: none;
}

.countdown-gate {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: black;
  transition: opacity 0.45s ease, visibility 0.45s ease;
}

.countdown-gate.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.countdown-gate.is-disabled {
  display: none;
}

.time-to {
  padding: 24px;
  color: white;
  font-family: "Bangers", cursive;
  font-size: clamp(32px, 7vw, 58px);
  letter-spacing: 2px;
  line-height: 1.05;
  text-align: center;
}

.time-to span {
  display: block;
  margin-top: 18px;
  color: #ff2f2f;
  font-size: clamp(56px, 14vw, 112px);
  line-height: 0.95;
}

.jumpscare {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  background: #000;
}

.jumpscare.is-active {
  display: flex;
}

.jumpscare img {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
}

.apology-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: 24px;
  box-sizing: border-box;
  background:
    radial-gradient(circle at top left, rgba(255, 91, 138, 0.45), transparent 32%),
    radial-gradient(circle at bottom right, rgba(101, 214, 255, 0.45), transparent 30%),
    #111;
}

.apology-card {
  width: min(920px, 94vw);
  text-align: center;
}

.apology-message {
  margin: 0 0 28px;
  color: #fff7cf;
  font-family: "Bangers", cursive;
  font-size: clamp(38px, 8vw, 92px);
  letter-spacing: 2px;
  line-height: 1.05;
  text-shadow:
    0 4px 0 #ff5b8a,
    0 0 28px rgba(255, 226, 122, 0.75);
}

.back-button {
  display: inline-block;
  padding: 12px 24px;
  border: 3px solid #ffe27a;
  border-radius: 999px;
  background: linear-gradient(135deg, #65d6ff, #ff5b8a);
  color: #fff;
  font-family: "Bangers", cursive;
  font-size: clamp(22px, 4vw, 34px);
  letter-spacing: 1px;
  text-decoration: none;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.25);
  box-shadow:
    0 6px 0 rgba(91, 44, 20, 0.55),
    0 0 22px rgba(255, 226, 122, 0.7);
}

.back-button:hover {
  filter: brightness(1.08);
}

#beach,
#canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#beach {
  display: none;
  z-index: 2;
  background-image: url("https://dl.dropbox.com/s/oe0oce2udq44bj5/beachsil2.png");
  background-position: bottom right;
  background-repeat: no-repeat;
  background-size: 1700px;
  pointer-events: none;
}

#canvas {
  z-index: 4;
}

#video {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  width: min(86vw, 520px);
  aspect-ratio: 16 / 9;
  padding: 10px;
  border: 4px solid #ffe27a;
  border-radius: 18px;
  background:
    linear-gradient(#fff7cf, #fff7cf) padding-box,
    repeating-linear-gradient(
      45deg,
      #ff5b8a 0 12px,
      #ffe27a 12px 24px,
      #65d6ff 24px 36px,
      #9cff8f 36px 48px
    ) border-box;
  box-shadow:
    0 0 0 6px rgba(255, 255, 255, 0.35),
    0 18px 45px rgba(10, 4, 38, 0.45),
    0 0 28px rgba(255, 226, 122, 0.65);
  transform: translate(-50%, -50%);
}

#video:empty {
  display: none;
}

#video::before,
#video::after {
  position: absolute;
  z-index: -1;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ff5b8a;
  box-shadow:
    38px -10px 0 #65d6ff,
    76px 4px 0 #ffe27a,
    114px -8px 0 #9cff8f,
    152px 5px 0 #ff9f43;
  content: "";
}

#video::before {
  top: -22px;
  left: 22px;
}

#video::after {
  right: 170px;
  bottom: -22px;
  transform: rotate(180deg);
}

#video iframe {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 10px;
}

.surprise-button {
  position: absolute;
  top: calc(50% + min(24.2vw, 166px));
  left: 50%;
  z-index: 12;
  display: none;
  padding: 12px 22px;
  border: 3px solid #ffe27a;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff5b8a, #ff9f43);
  color: #fff;
  cursor: pointer;
  font-family: "Bangers", cursive;
  font-size: clamp(20px, 4vw, 30px);
  letter-spacing: 1px;
  box-shadow:
    0 6px 0 rgba(91, 44, 20, 0.55),
    0 0 22px rgba(255, 226, 122, 0.7);
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.28);
  transform: translateX(-50%);
}

.surprise-button.is-ready {
  display: block;
}

.surprise-button:hover {
  filter: brightness(1.08);
}

.surprise-button:active {
  box-shadow:
    0 2px 0 rgba(91, 44, 20, 0.55),
    0 0 18px rgba(255, 226, 122, 0.65);
  transform: translate(-50%, 4px);
}

.robot-floor {
  position: absolute;
  right: clamp(12px, 3vw, 38px);
  bottom: clamp(12px, 3vw, 34px);
  z-index: 5;
  display: none;
  width: clamp(92px, 16vw, 170px);
  height: clamp(150px, 25vw, 270px);
  align-items: center;
  justify-content: center;
  animation: robotSideStep 2.4s ease-in-out infinite;
  pointer-events: none;
}

.birthday-stage.is-greeting .robot-floor {
  display: flex;
}

.robot-size-zero {
  display: inline-block;
  width: 0;
  height: 0;
}

.robot-head {
  width: 6vmin;
  height: 6vmin;
  margin: 0 auto;
  border: 0.45vmin solid #f6d36b;
  border-radius: 0.8vmin;
  background:
    radial-gradient(circle at 32% 35%, #fff1a6 0 13%, transparent 14%),
    radial-gradient(circle at 68% 35%, #fff1a6 0 13%, transparent 14%),
    linear-gradient(135deg, #8b3f13, #d38a24 55%, #f6d36b);
  box-shadow:
    0 0 18px rgba(246, 211, 107, 0.78),
    inset 0 -0.8vmin 0 rgba(73, 31, 11, 0.28);
}

.robot-abdomen,
.robot-legs {
  display: flex;
  justify-content: center;
}

.robot-arm {
  position: relative;
  width: 4vmin;
  height: 10vmin;
  border-radius: 2vmin;
  background: linear-gradient(180deg, #f6d36b, #d38a24 62%, #8b3f13);
  box-shadow: inset 0 -0.7vmin 0 rgba(73, 31, 11, 0.28);
  transform-origin: top;
  animation: robotRotate 2s linear infinite;
}

.robot-arm::before,
.robot-link::before {
  position: relative;
  display: block;
  width: 100%;
  height: 95%;
  content: "";
}

.robot-a1 {
  left: -2vmin;
}

.robot-middle-body {
  display: inline-block;
  width: 15vmin;
  height: 20vmin;
  border: 2vmin solid #3b1d12;
  border-radius: 1.2vmin;
  background:
    radial-gradient(circle at 50% 32%, #fff1a6 0 13%, transparent 14%),
    linear-gradient(160deg, #f6d36b 0 24%, #d38a24 25% 58%, #7a2f13 59%);
  box-shadow:
    0 0 18px rgba(246, 211, 107, 0.46),
    inset 0 0 0 0.7vmin rgba(255, 241, 166, 0.28);
}

.robot-link {
  position: relative;
  width: 4vmin;
  height: 10vmin;
  border-radius: 2vmin;
  background: linear-gradient(180deg, #f6d36b, #b75b18 58%, #3b1d12);
  box-shadow: inset 0 -0.7vmin 0 rgba(0, 0, 0, 0.24);
  transform-origin: top;
}

.robot-leg1 .robot-l1 {
  left: -2vmin;
  animation: robotRotateLeg 1s linear infinite;
}

.robot-leg1 .robot-l2 {
  animation: robotRotateLeg 1s linear infinite reverse;
}

.robot-leg2 .robot-l1 {
  left: -2vmin;
  animation: robotRotateLeg 1s linear infinite reverse;
}

.robot-leg2 .robot-l2 {
  animation: robotRotateLeg 1s linear infinite;
}

.robot-lower-body {
  display: inline-block;
  width: 10vmin;
  height: 20vmin;
  border: 2vmin solid transparent;
  background: transparent;
}

.robot-main-body {
  animation: robotUpDown 1s linear infinite;
}

@keyframes robotRotate {
  25% {
    transform: translateZ(0) rotate(-60deg);
  }

  75% {
    transform: translateZ(0) rotate(60deg);
  }
}

@keyframes robotRotateLeg {
  25% {
    transform: translateZ(0) rotate(20deg);
  }

  75% {
    transform: translateZ(0) rotate(-20deg);
  }
}

@keyframes robotUpDown {
  25% {
    margin-top: 3vmin;
  }

  50% {
    margin-top: 0;
  }

  75% {
    margin-top: 3vmin;
  }
}

@keyframes robotSideStep {
  0%,
  100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-8px);
  }

  75% {
    transform: translateX(8px);
  }
}

#people {
  position: absolute;
  bottom: 65px;
  left: 40px;
  width: 140px;
  z-index: 3;
}

#sea {
  display: none;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 85px;
  z-index: 2;
  background-color: blue;
  background-image: radial-gradient(circle at center top, #23485a, #0d0246);
}

.merrywrap {
  position: absolute;
  inset: 0;
  background-color: #f7a11a;
  background-image:
    linear-gradient(rgba(255, 179, 52, 0.18), rgba(255, 130, 20, 0.2)),
    url("gradient-yellow-star-background_52683-153241.avif");
  background-position: center;
  background-size: cover;
  transition: background-color 0.5s ease, opacity 0.5s ease;
  z-index: 5;
}

.merrywrap.is-revealed {
  background-color: transparent;
  background-image: none;
  pointer-events: none;
}

.merrywrap.is-revealed .reward-title,
.merrywrap.is-revealed .giftbox {
  display: none;
}

.reward-title {
  position: absolute;
  top: 70px;
  left: 50%;
  z-index: 12;
  width: min(92vw, 760px);
  margin: 0;
  color: #fff4d8;
  font-size: clamp(38px, 8vw, 78px);
  line-height: 1;
  text-align: center;
  text-shadow:
    0 3px 0 rgba(52, 73, 94, 0.75),
    0 0 24px rgba(253, 197, 109, 0.65);
  transform: translateX(-50%) rotate(-4deg);
}

.giftbox {
  position: absolute;
  bottom: 40px;
  left: 50%;
  z-index: 10;
  width: 300px;
  height: 200px;
  margin-left: -150px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}

.giftbox::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  color: #fff;
  content: "Click Me!";
  font-size: 24px;
  text-align: center;
  animation: clickMePulse 0.9s ease-in-out infinite alternate;
  text-shadow:
    0 2px 0 rgba(0, 0, 0, 0.35),
    0 0 16px rgba(255, 226, 122, 0.95);
  transform: rotate(-20deg);
  transform-origin: 0 0;
}

.giftbox > span {
  position: absolute;
  background: #34495e;
}

.giftbox > span::after,
.giftbox > span::before {
  position: absolute;
  top: 0;
  content: "";
}

.giftbox .cover {
  top: 0;
  left: 0;
  z-index: 2;
  width: 100%;
  height: 25%;
}

.giftbox .cover::before {
  left: 50%;
  width: 50px;
  height: 100%;
  background: #fdc56d;
  transform: translateX(-50%);
}

.giftbox .cover > span {
  position: absolute;
  top: -50px;
  left: 50%;
  width: 50px;
  height: 50px;
  transform: translateX(-50%);
}

.giftbox .cover > span::before,
.giftbox .cover > span::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 30px;
  box-shadow: inset 0 0 0 15px #fdc56d;
  content: "";
  transform-origin: 50% 100%;
}

.giftbox .cover > span::before {
  transform: translateX(-45%) skewY(40deg);
}

.giftbox .cover > span::after {
  transform: translateX(45%) skewY(-40deg);
}

.giftbox .box {
  right: 5%;
  bottom: 0;
  left: 5%;
  height: 80%;
}

.giftbox .box::before {
  left: 50%;
  width: 50px;
  height: 100%;
  background: #fdc56d;
  transform: translateX(-50%);
}

.giftbox .box::after {
  width: 100%;
  height: 30px;
  background: transparent;
}

.icons {
  position: absolute;
  top: 34px;
  left: 10px;
  width: min(92vw, 720px);
  height: auto;
  transform: rotate(-12deg);
  transition: top 0.9s ease, left 0.9s ease, transform 0.9s ease;
  z-index: 6;
}

.merrywrap .icons.is-centered {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(0deg) scale(1.05);
}

.icons .row {
  width: 100%;
  text-align: center;
  white-space: nowrap;
}

.icons .row span {
  display: inline-block;
  min-width: 0.55em;
  color: #e5e5e5;
  font-size: clamp(38px, 10vw, 56px);
  line-height: 1.05;
  opacity: 0;
  text-shadow: 4px 4px 0 rgba(96, 125, 139, 0.4);
  transition: transform 0.5s ease-in, opacity 0.7s;
}

.step-1 .giftbox {
  animation: wobble 0.5s linear infinite forwards;
}

.step-1 .cover {
  animation: wobble 0.5s linear 0.1s infinite forwards;
}

.step-1 .icons .row span {
  opacity: 0;
}

.step-2 .giftbox::after {
  opacity: 0;
}

.step-3 .giftbox,
.step-4 .giftbox {
  z-index: 1;
  opacity: 0;
}

.step-2 .reward-title,
.step-3 .reward-title,
.step-4 .reward-title {
  opacity: 0;
  transform: translateX(-50%) translateY(-24px) rotate(-4deg);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.step-3 .giftbox::after,
.step-4 .giftbox::after {
  opacity: 0;
}

.step-2 .giftbox .cover {
  animation: flyUp 0.4s ease-in forwards;
}

.step-2 .giftbox .box {
  animation: flyDown 0.2s ease-in 0.05s forwards;
}

.step-1 .icons .row span:first-child {
  transform: translateY(700%) translateX(600%);
}

.step-1 .icons .row span:nth-child(2) {
  transform: translateY(700%) translateX(500%);
}

.step-1 .icons .row span:nth-child(3) {
  transform: translateY(700%) translateX(400%);
}

.step-1 .icons .row span:nth-child(4) {
  transform: translateY(700%) translateX(300%);
}

.step-1 .icons .row span:nth-child(5) {
  transform: translateY(700%) translateX(200%);
}

.step-1 .icons .row span:nth-child(6) {
  transform: translateY(700%) translateX(100%);
}

.step-1 .icons .row span:nth-child(7) {
  transform: translateY(700%) translateX(0);
}

.step-1 .icons .row span:nth-child(8) {
  transform: translateY(700%) translateX(-100%);
}

.step-1 .icons .row span:nth-child(9) {
  transform: translateY(700%) translateX(-200%);
}

.step-1 .icons .row span:nth-child(10) {
  transform: translateY(700%) translateX(-300%);
}

.step-1 .icons .row span:nth-child(11) {
  transform: translateY(700%) translateX(-400%);
}

.step-1 .icons .row span:nth-child(12) {
  transform: translateY(700%) translateX(-500%);
}

.step-1 .icons .row span:nth-child(13) {
  transform: translateY(700%) translateX(-600%);
}

.step-2 .icons .row span:nth-child(2) {
  transition-delay: 0.1s;
}

.step-2 .icons .row span:nth-child(3) {
  transition-delay: 0.15s;
}

.step-2 .icons .row span:nth-child(4) {
  transition-delay: 0.2s;
}

.step-2 .icons .row span:nth-child(5) {
  transition-delay: 0.25s;
}

.step-2 .icons .row span:nth-child(6) {
  transition-delay: 0.3s;
}

.step-2 .icons .row span:nth-child(7) {
  transition-delay: 0.35s;
}

.step-2 .icons .row span:nth-child(8) {
  transition-delay: 0.4s;
}

.step-2 .icons .row span:nth-child(9) {
  transition-delay: 0.45s;
}

.step-2 .icons .row span:nth-child(10) {
  transition-delay: 0.5s;
}

.step-2 .icons .row span:nth-child(11) {
  transition-delay: 0.55s;
}

.step-2 .icons .row span:nth-child(12) {
  transition-delay: 0.6s;
}

.step-2 .icons .row span:nth-child(13) {
  transition-delay: 0.65s;
}

.step-2 .icons span,
.step-3 .icons span,
.step-4 .icons span {
  opacity: 1;
  transform: translateY(0) translateX(0);
  transition-timing-function: cubic-bezier(0, 0, 0.2, 0.91);
}

.step-3 .icons .row span,
.step-4 .icons .row span {
  color: #c6e2ff;
  animation: neon 0.08s ease-in-out infinite alternate;
}

.step-3 .icons .row span:nth-child(even),
.step-4 .icons .row span:nth-child(even) {
  animation-duration: 0.7s;
}

@keyframes wobble {
  25% {
    transform: rotate(4deg);
  }

  75% {
    transform: rotate(-2deg);
  }
}

@keyframes flyUp {
  75% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateY(-1000px) rotate(20deg);
  }
}

@keyframes flyDown {
  75% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateY(100%);
  }
}

@keyframes clickMePulse {
  from {
    color: #fff;
    transform: translateY(0) rotate(-20deg) scale(1);
  }

  to {
    color: #ffe27a;
    transform: translateY(-12px) rotate(-14deg) scale(1.14);
  }
}

@keyframes neon {
  from {
    text-shadow:
      0 0 6px rgba(202, 228, 225, 0.92),
      0 0 30px rgba(202, 228, 225, 0.34),
      0 0 12px rgba(30, 132, 242, 0.52),
      0 0 21px rgba(30, 132, 242, 0.92),
      0 0 34px rgba(30, 132, 242, 0.78),
      0 0 54px rgba(30, 132, 242, 0.92);
  }

  to {
    text-shadow:
      0 0 6px rgba(202, 228, 225, 0.98),
      0 0 30px rgba(202, 228, 225, 0.42),
      0 0 12px rgba(30, 132, 242, 0.58),
      0 0 22px rgba(30, 132, 242, 0.84),
      0 0 38px rgba(30, 132, 242, 0.88),
      0 0 60px rgba(30, 132, 242, 1);
  }
}

.moon {
  position: absolute;
  top: 10%;
  right: 8vw;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: #ddd;
  box-shadow: inset 20px -10px 0 0 #b9b9b9;
}

.moon .crater1 {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #bbb;
  box-shadow: inset -3px 1.5px 0 0 #aaa;
}

.moon .crater2 {
  position: absolute;
  top: 45px;
  right: 50px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #bbb;
  box-shadow: inset -1px 0.5px 0 0 #aaa;
}

.moon .crater3 {
  position: absolute;
  top: 60px;
  right: 25px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #bbb;
  box-shadow: inset -1.5px 0.75px 0 0 #aaa;
}

@media (min-width: 1000px) {
  .icons {
    top: 42px;
    left: 30px;
  }

  #people {
    bottom: 70px;
    left: 80px;
    width: 160px;
  }

  #beach {
    background-size: 2000px;
  }

  #video {
    width: min(62vw, 560px);
  }

  .surprise-button {
    top: calc(50% + min(17.5vw, 182px));
  }

  .moon {
    right: 230px;
  }
}

@media (max-width: 520px) {
  .giftbox {
    bottom: 32px;
    width: 220px;
    height: 150px;
    margin-left: -110px;
  }

  .giftbox::after {
    font-size: 21px;
  }

  .reward-title {
    top: 96px;
    font-size: clamp(34px, 12vw, 52px);
  }

  .icons {
    top: 40px;
    left: 50%;
    width: 96vw;
    transform: translateX(-50%) rotate(-8deg);
  }

  #video {
    top: 52%;
    width: 88vw;
  }

  .surprise-button {
    top: calc(52% + 32vw);
    width: min(84vw, 360px);
    padding: 10px 16px;
  }

  .moon {
    top: 6%;
    right: 7vw;
    width: 76px;
    height: 76px;
  }
}