/* CSS Style */
/* ------------------------------------------------------------------------------- */
:root {
  --bg: #0a0a0f;
  --fg: #ffffff;
  --pink: #ffd6e7;
  --heart: #ff2b4f;
  --shadow: rgba(255, 43, 79, 0.6);
  --textGlow: 0 0 0.6rem rgba(255, 214, 231, 0.9);
  --maxWidth: 1200px;
  --messageBoxBg: rgba(139, 69, 119, 0.6);
  --glow: rgba(255, 43, 79, 0.8);
  --confetti-colors: #ff2b4f, #ffd6e7, #ff5f7a, #c91534;
}
* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: "Sour Gummy", system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--fg);
  background: linear-gradient(to bottom, #000000, #2a3a6b);
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}
.scene {
  position: relative;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}
.scene[data-bg="stars"] {
  background: linear-gradient(to bottom, #000000, #2a3a6b);
}
.scene[data-bg="stars"]::before,
.scene[data-bg="stars"]::after {
  content: "";
  position: absolute;
  inset: -50% -50%;
  background-repeat: repeat;
  pointer-events: none;
  z-index: -1;
  will-change: opacity;
}
.scene[data-bg="stars"]::before {
  background-image: radial-gradient(
      3px 3px at 15px 25px,
      #fff 50%,
      transparent 51%
    ),
    radial-gradient(2px 2px at 45px 75px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 85px 45px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 125px 15px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 165px 95px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 205px 35px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 245px 65px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 285px 25px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 325px 85px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 365px 55px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 405px 15px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 445px 75px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 20px 120px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 100px 180px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 180px 140px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 260px 200px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 340px 160px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 420px 220px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 60px 300px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 140px 280px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 480px 350px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 30px 250px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 190px 320px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 380px 80px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 120px 300px, #fff 50%, transparent 51%),
    radial-gradient(4px 4px at 300px 50px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 50px 180px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 250px 150px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 400px 280px, #fff 50%, transparent 51%);
  background-size: 500px 400px;
  animation: twinkleA 4s ease-in-out infinite;
  opacity: 1;
}
.scene[data-bg="stars"]::after {
  background-image: radial-gradient(
      2px 2px at 30px 40px,
      #fff 50%,
      transparent 51%
    ),
    radial-gradient(1px 1px at 70px 90px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 110px 20px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 150px 130px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 190px 70px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 230px 110px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 270px 50px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 310px 150px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 350px 30px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 390px 100px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 430px 170px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 470px 60px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 80px 190px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 120px 240px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 160px 210px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 200px 280px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 240px 220px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 280px 290px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 320px 260px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 360px 300px, #fff 50%, transparent 51%),
    radial-gradient(2px 2px at 50px 350px, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 220px 30px, #fff 50%, transparent 51%),
    radial-gradient(3px 3px at 300px 90px, #fff 50%, transparent 51%);
  background-size: 500px 350px;
  animation: twinkleB 6s ease-in-out infinite;
  opacity: 0.8;
}

.scene[data-bg="stars"] .extra-stars {
  content: "";
  position: absolute;
  inset: -50% -50%;
  background-repeat: repeat;
  pointer-events: none;
  z-index: -2;
  will-change: opacity;
  background-image: radial-gradient(
      1px 1px at 10px 50px,
      #ddd 50%,
      transparent 51%
    ),
    radial-gradient(1px 1px at 50px 100px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 90px 30px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 130px 150px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 170px 80px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 210px 120px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 250px 40px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 290px 160px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 330px 20px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 370px 110px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 410px 180px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 450px 70px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 70px 200px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 110px 250px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 150px 220px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 190px 290px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 230px 230px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 270px 300px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 310px 270px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 350px 310px, #ddd 50%, transparent 51%),
    radial-gradient(2px 2px at 40px 360px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 210px 40px, #ddd 50%, transparent 51%),
    radial-gradient(1px 1px at 290px 100px, #ddd 50%, transparent 51%);
  background-size: 500px 380px;
  animation: twinkleC 8s ease-in-out infinite;
  opacity: 0.6;
}
@keyframes twinkleA {
  0% {
    opacity: 1;
  }
  25% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.8;
  }
  75% {
    opacity: 0.2;
  }
  100% {
    opacity: 1;
  }
}
@keyframes twinkleB {
  0% {
    opacity: 0.8;
  }
  20% {
    opacity: 0.2;
  }
  40% {
    opacity: 0.9;
  }
  60% {
    opacity: 0.3;
  }
  80% {
    opacity: 0.7;
  }
  100% {
    opacity: 0.8;
  }
}
@keyframes twinkleC {
  0% {
    opacity: 0.6;
  }
  30% {
    opacity: 0.1;
  }
  60% {
    opacity: 0.7;
  }
  90% {
    opacity: 0.2;
  }
  100% {
    opacity: 0.6;
  }
}
/* Floating hearts bg*/
.floating-hearts {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}
.heart-float {
  position: absolute;
  color: var(--pink);
  font-size: var(--size, 20px);
  opacity: 0.25;
  animation: floatUp var(--duration, 15s) linear infinite;
  left: var(--left);
  animation-delay: var(--delay);
  will-change: transform, opacity;
}
@keyframes floatUp {
  0% {
    transform: translateY(120vh) rotate(var(--rot, 0deg)) scale(0.8);
    opacity: 0;
  }
  10% {
    opacity: 0.25;
  }
  90% {
    opacity: 0.25;
  }
  100% {
    transform: translateY(-20vh) rotate(var(--rot, 0deg)) scale(1.2);
    opacity: 0;
  }
}
.heart-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-40px);
  z-index: 5;
}
@media (min-height: 800px) {
  .heart-container {
    transform: translateY(0);
  }
}
.heart-btn {
  display: grid;
  place-items: center;
  width: clamp(280px, 40vmin, 520px);
  height: clamp(280px, 40vmin, 520px);
  border: none;
  background: transparent;
  cursor: pointer;
  filter: drop-shadow(0 0 40px rgba(255, 43, 79, 0.55)) brightness(1.1);
  transition: transform 0.1s ease, filter 0.3s ease;
  z-index: 2;
}
.heart-btn:hover {
  filter: drop-shadow(0 0 50px rgba(255, 43, 79, 0.7)) brightness(1.2);
}
.heart-btn:active {
  transform: scale(0.95);
}
.heart {
  width: 85%;
  height: 85%;
  display: block;
  transform-origin: center center;
  will-change: transform, filter;
}
.heart svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}
.heart svg .core {
  fill: url(#g);
  filter: drop-shadow(0 0 20px var(--shadow))
    drop-shadow(0 0 40px rgba(255, 43, 79, 0.4))
    drop-shadow(0 0 60px rgba(255, 43, 79, 0.2));
  animation: gentleBeat 2.5s ease-in-out infinite;
  transform-origin: 50% 50%;
}
.heart svg .shine {
  fill: rgba(255, 255, 255, 0.45);
  mix-blend-mode: screen;
  animation: shinePulse 3s ease-in-out infinite;
}
@keyframes shinePulse {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 0.7;
  }
}
@keyframes gentleBeat {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}
.heart-btn.clicked .heart svg .core {
  animation: strongBeat 0.7s cubic-bezier(0.17, 0.67, 0.83, 0.67),
    gentleBeat 2.5s ease-in-out infinite 0.7s;
}
@keyframes strongBeat {
  0% {
    transform: scale(1);
  }
  15% {
    transform: scale(1.8);
  }
  30% {
    transform: scale(0.6);
  }
  45% {
    transform: scale(1.6);
  }
  60% {
    transform: scale(0.7);
  }
  75% {
    transform: scale(1.3);
  }
  90% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}
.phrase {
  position: absolute;
  display: inline-block;
  padding: 0.8em 1.4em;
  background: var(--messageBoxBg);
  border-radius: 25px;
  border: 1px solid rgba(255, 214, 231, 0.3);
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6), var(--textGlow);
  pointer-events: none;
  font-size: clamp(14px, 2.2vw, 26px);
  color: var(--pink);
  opacity: 0;
  z-index: 10;
  box-shadow: 0 8px 32px rgba(255, 43, 79, 0.2), 0 0 20px var(--glow);
  transform: translate(-50%, -50%);
  white-space: normal;
  max-width: 90vw;
  text-align: center;
  will-change: transform, opacity, color;
  transition: color 0.5s ease;
}
.phrase.shooting {
  animation: shootAndFall var(--duration, 6s)
    cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
@keyframes shootAndFall {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.5) rotate(var(--rotation, 0deg));
  }
  10% {
    opacity: 1;
    transform: translate(
        calc(-50% + var(--shoot-x)),
        calc(-50% + var(--shoot-y))
      )
      scale(1.1) rotate(var(--rotation, 0deg));
  }
  15% {
    transform: translate(
        calc(-50% + var(--shoot-x)),
        calc(-50% + var(--shoot-y))
      )
      scale(1) rotate(var(--rotation, 0deg));
  }
  90% {
    opacity: 1;
    transform: translate(
        calc(-50% + var(--final-x)),
        calc(-50% + var(--final-y))
      )
      scale(0.85) rotate(var(--final-rotation, 0deg));
  }
  100% {
    opacity: 0;
    transform: translate(
        calc(-50% + var(--final-x)),
        calc(-50% + var(--final-y))
      )
      scale(0.7) rotate(var(--final-rotation, 0deg));
  }
}
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--heart);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  will-change: transform, opacity;
  box-shadow: 0 0 10px var(--glow);
}
.particle.burst {
  animation: particleBurst 1.2s ease-out forwards;
}
@keyframes particleBurst {
  0% {
    opacity: 1;
    transform: scale(1.2);
  }
  100% {
    opacity: 0;
    transform: scale(0)
      translate(var(--particle-x, 0px), var(--particle-y, 0px));
  }
}
/* Confetti */
.confetti {
  position: absolute;
  width: var(--size, 6px);
  height: var(--size, 6px);
  background: var(--color, #ff2b4f);
  border-radius: 50%;
  pointer-events: none;
  z-index: 3;
  opacity: 0;
  will-change: transform, opacity;
  animation: confettiBurst var(--duration, 1.5s) ease-out forwards;
}
@keyframes confettiBurst {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--conf-x, 0px), var(--conf-y, 0px)) scale(0.5)
      rotate(var(--rot, 0deg));
  }
}
/* Music player */
.music-player {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--messageBoxBg);
  padding: 10px 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 214, 231, 0.3);
  box-shadow: 0 8px 32px rgba(255, 43, 79, 0.2);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 100;
  backdrop-filter: blur(10px);
  min-width: 260px;
  opacity: 0;
  transform: translateX(-50%) translateY(-100%);
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.music-player.active {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.play-pause-btn {
  background: rgba(255, 43, 79, 0.8);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: white;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 43, 79, 0.3);
}
.play-pause-btn:hover {
  background: rgba(255, 43, 79, 1);
  transform: scale(1.05);
}
.play-pause-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}
.progress-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.song-info {
  font-size: 13px;
  color: var(--pink);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  font-weight: 500;
}
.progress-bar {
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #ff2b4f, #ff5f7a);
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s ease;
}
.time-display {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: rgba(255, 214, 231, 0.8);
  font-weight: 400;
}
/* Press Counter */
/* ---------------------------------- */
.counter {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--messageBoxBg);
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255, 214, 231, 0.3);
  box-shadow: 0 8px 32px rgba(255, 43, 79, 0.2);
  font-size: 14px;
  color: var(--pink);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  z-index: 100;
  opacity: 0.9;
}
/* Media Responsive */
@media (max-width: 600px) {
  .phrase {
    font-size: clamp(12px, 3.5vw, 20px);
    padding: 0.6em 1.2em;
  }
  .music-player {
    width: 90%;
    min-width: unset;
    padding: 8px 12px;
    gap: 8px;
  }
  .song-info {
    font-size: 12px;
  }
  .time-display {
    font-size: 10px;
  }
  .play-pause-btn {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .counter {
    font-size: 12px;
    padding: 6px 12px;
  }
  .heart-container {
    transform: translateY(-20px);
  }
}
@media (max-width: 400px) {
  .heart-btn {
    width: clamp(200px, 80vw, 280px);
    height: clamp(200px, 80vw, 280px);
  }
  .phrase {
    font-size: clamp(10px, 4vw, 16px);
  }
}
/* -------------------------------END------------------------------- */