/**
 * L-hub only — welcome curtain call inside `.oss-hpp-lobby` (Save-as style).
 */

.oss-l-hub-welcome {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  overflow: hidden;
}

.oss-l-hub-welcome__wash {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0;
  background: radial-gradient(
    ellipse 85% 70% at 50% 38%,
    rgba(255, 246, 220, 0.55) 0%,
    rgba(255, 230, 170, 0.22) 42%,
    transparent 72%
  );
  mix-blend-mode: screen;
  transition: opacity 0.45s ease;
}

.oss-l-hub-welcome__wash--on {
  opacity: 1;
}

.oss-l-hub-welcome__wash--off {
  opacity: 0;
  transition: opacity 0.9s ease;
}

.oss-l-hub-welcome__popcorn {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.oss-l-hub-welcome__popcorn-piece {
  position: absolute;
  font-size: var(--oss-l-hub-celebration-piece-size, 4.05rem);
  opacity: 0;
  will-change: transform, opacity;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

.oss-l-hub-welcome__popcorn-piece--toss {
  bottom: var(--oss-l-hub-pop-origin, 9%);
  left: var(--oss-l-hub-pop-left, 50%);
  animation: oss-l-hub-popcorn-toss var(--oss-l-hub-pop-dur, 1.8s) cubic-bezier(0.33, 0.12, 0.55, 1)
    var(--oss-l-hub-pop-delay, 0s) forwards;
}

.oss-l-hub-welcome__popcorn-piece--fall {
  top: var(--oss-l-hub-pop-top, -6%);
  left: var(--oss-l-hub-pop-left, 50%);
  animation: oss-l-hub-popcorn-fall var(--oss-l-hub-pop-dur, 1.5s) ease-in var(--oss-l-hub-pop-delay, 0s)
    forwards;
}

.oss-l-hub-welcome__popcorn-piece--spill {
  bottom: var(--oss-l-hub-pop-origin, 7%);
  left: var(--oss-l-hub-pop-left, 50%);
  animation: oss-l-hub-popcorn-spill var(--oss-l-hub-pop-dur, 1.25s) ease-out var(--oss-l-hub-pop-delay, 0s)
    forwards;
}

@keyframes oss-l-hub-popcorn-toss {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.55) rotate(0deg);
  }
  10% {
    opacity: 1;
  }
  42% {
    transform: translate3d(var(--oss-l-hub-pop-drift-mid, 0px), calc(-1 * var(--oss-l-hub-pop-rise, 32vh)), 0)
      scale(1.05) rotate(var(--oss-l-hub-pop-rot-mid, 95deg));
  }
  72% {
    opacity: 0.95;
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--oss-l-hub-pop-drift, 0px), var(--oss-l-hub-pop-drop, 14vh), 0) scale(0.8)
      rotate(var(--oss-l-hub-pop-rot-end, 240deg));
  }
}

@keyframes oss-l-hub-popcorn-fall {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.65) rotate(0deg);
  }
  12% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--oss-l-hub-pop-drift, 0px), 105vh, 0) scale(1) rotate(200deg);
  }
}

@keyframes oss-l-hub-popcorn-spill {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.5) rotate(-20deg);
  }
  8% {
    opacity: 1;
  }
  35% {
    transform: translate3d(var(--oss-l-hub-pop-drift-mid, 0px), calc(-1 * var(--oss-l-hub-pop-rise, 12vh)), 0)
      scale(0.95) rotate(40deg);
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--oss-l-hub-pop-drift, 0px), var(--oss-l-hub-pop-drop, 8vh), 0) scale(0.75)
      rotate(160deg);
  }
}

.oss-l-hub-welcome__confetti {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.oss-l-hub-welcome__confetti-piece {
  position: absolute;
  top: var(--oss-l-hub-conf-top, -8%);
  left: var(--oss-l-hub-conf-left, 50%);
  opacity: 0;
  will-change: transform, opacity;
  animation: oss-l-hub-confetti-fall var(--oss-l-hub-conf-dur, 2s) ease-in var(--oss-l-hub-conf-delay, 0s)
    forwards;
}

.oss-l-hub-welcome__confetti-piece--spark {
  font-size: var(--oss-l-hub-celebration-piece-size, 4.05rem);
  text-shadow: 0 0 6px rgba(255, 240, 180, 0.55);
}

.oss-l-hub-welcome__confetti-piece--rect {
  display: block;
  width: var(--oss-l-hub-celebration-bar-w, 1.35rem);
  height: var(--oss-l-hub-celebration-bar-h, 2.25rem);
  border-radius: 2px;
  background: hsl(var(--oss-l-hub-conf-hue, 45) 90% 58%);
  box-shadow: 0 0 4px hsl(var(--oss-l-hub-conf-hue, 45) 95% 72% / 0.65);
}

@keyframes oss-l-hub-confetti-fall {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) rotate(0deg) scale(0.6);
  }
  8% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--oss-l-hub-conf-drift, 0px), 108vh, 0) rotate(var(--oss-l-hub-conf-spin, 360deg))
      scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .oss-l-hub-welcome {
    display: none;
  }
}

@media (max-width: 480px) {
  .oss-l-hub-welcome__popcorn-piece,
  .oss-l-hub-welcome__confetti-piece--spark {
    font-size: clamp(2rem, 10vw, 4.05rem);
  }
}