:root {
  --pink-hot: #ff2fa8;
  --pink-mid: #ff6fc4;
  --pink-light: #ffc2e8;
  --pink-pale: #ffe9f6;
  --pink-deep: #b8006b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #0c0316;
  color: #fff;
  font-family: 'Pacifico', cursive;
  overflow: hidden;
}

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 5vh;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, #ff5cc0 0%, #c4149a 25%, #6b1259 50%, #2a0a30 75%, #0c0316 100%);
}

.disco-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.fireworks-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.fireworks-canvas.active {
  opacity: 1;
}

.sparkles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, #fff 1.5px, transparent 1.6px),
    radial-gradient(circle, #fff 1px, transparent 1.1px),
    radial-gradient(circle, #fff 2px, transparent 2.1px);
  background-size: 140px 140px, 90px 90px, 220px 220px;
  background-position: 10px 20px, 60px 120px, 30px 200px;
  opacity: 0.55;
  animation: twinkle 2.5s ease-in-out infinite alternate;
}

@keyframes twinkle {
  from { opacity: 0.25; }
  to   { opacity: 0.65; }
}

.title {
  position: relative;
  z-index: 2;
  font-family: 'Bungee', cursive;
  text-align: center;
  line-height: 1.15;
  margin: 0;
  letter-spacing: 1px;
}

.title .line1,
.title .line2 {
  display: block;
  font-size: clamp(26px, 6.4vw, 52px);
  color: #fff;
  -webkit-text-stroke: 1.5px var(--pink-deep);
  text-shadow:
    0 0 8px rgba(255,255,255,0.8),
    0 0 22px var(--pink-hot),
    0 4px 0 var(--pink-deep);
}

.title .line2 {
  color: #fffbe6;
  font-size: clamp(20px, 4.9vw, 40px);
}

.sound-toggle {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 20;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: #fff;
  background: rgba(0,0,0,0.4);
  border: 2px solid var(--pink-hot);
  border-radius: 50%;
  cursor: pointer;
  animation: soundPulse 1.3s ease-in-out infinite;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.sound-toggle.hidden {
  opacity: 0;
  transform: scale(0.7);
  pointer-events: none;
}

@keyframes soundPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 47, 168, 0.8); transform: scale(1); }
  50%      { box-shadow: 0 0 0 20px rgba(255, 47, 168, 0); transform: scale(1.2); }
}

/* ---------- VIDEO STAGE ---------- */

.video-stage {
  position: relative;
  z-index: 2;
  margin-top: 2.5vh;
  width: min(300px, 78vw);
  aspect-ratio: 9 / 16;
  border-radius: 18px;
  overflow: hidden;
  perspective: 1200px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

.dance-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
  mask-image: radial-gradient(ellipse 72% 68% at 50% 42%, black 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 72% 68% at 50% 42%, black 55%, transparent 100%);
}

.fold-half {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: 200% 100%;
  z-index: 3;
  backface-visibility: hidden;
  opacity: 0;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 144% 68% at 50% 42%, black 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 144% 68% at 50% 42%, black 55%, transparent 100%);
}

.fold-left {
  left: 0;
  background-position: left top;
  transform-origin: 0% 50%;
  mask-position: left top;
  -webkit-mask-position: left top;
}

.fold-right {
  right: 0;
  background-position: right top;
  transform-origin: 100% 50%;
  mask-position: right top;
  -webkit-mask-position: right top;
}

#videoStage.opened .fold-left,
#videoStage.opened .fold-right {
  opacity: 1;
}

#videoStage.opened .fold-left  { animation: foldOpenLeft 0.85s ease-in forwards; }
#videoStage.opened .fold-right { animation: foldOpenRight 0.85s ease-in forwards; }

@keyframes foldOpenLeft {
  0%   { transform: rotateY(0deg) translateZ(0); opacity: 1; }
  100% { transform: rotateY(-105deg) translateZ(-60px); opacity: 0; }
}

@keyframes foldOpenRight {
  0%   { transform: rotateY(0deg) translateZ(0); opacity: 1; }
  100% { transform: rotateY(105deg) translateZ(-60px); opacity: 0; }
}

.invite-card {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.5);
  opacity: 0;
  z-index: 1;
  width: 82%;
  max-width: 280px;
  text-align: center;
  background: rgba(255,255,255,0.97);
  color: var(--pink-deep);
  border-radius: 24px;
  padding: 28px 22px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
  pointer-events: none;
  transition: opacity 0.6s ease 0.5s, transform 0.6s cubic-bezier(.34,1.56,.64,1) 0.5s;
}

#videoStage.opened .invite-card {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

@media (max-width: 640px) {
  .video-stage {
    width: min(94vw, calc(76vh * 9 / 16));
    border-radius: 10px;
  }

  .dance-video,
  .fold-half {
    mask-image: none;
    -webkit-mask-image: none;
  }
}

.eyebrow {
  font-family: 'Bungee', cursive;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--pink-hot);
  margin: 0 0 8px;
}

.invite-card h2 {
  font-family: 'Bungee', cursive;
  font-size: clamp(24px, 5.5vw, 34px);
  margin: 0 0 10px;
  color: var(--pink-deep);
}

.invite-card .sub {
  margin: 0 0 20px;
  font-size: 16px;
  opacity: 0.85;
}

.rsvp-btn {
  display: inline-block;
  font-family: 'Bungee', cursive;
  font-size: 15px;
  letter-spacing: 1px;
  color: #fff;
  background: linear-gradient(135deg, var(--pink-hot), var(--pink-deep));
  padding: 14px 30px;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(255, 47, 168, 0.5);
  transition: transform 0.15s ease;
}

.rsvp-btn:hover { transform: translateY(-2px) scale(1.03); }

.fineprint {
  margin: 14px 0 0;
  font-size: 11px;
  opacity: 0.55;
}