/* ============================================
   Avatar Card — 3D tilt + glare + click-to-expand
   Inspired by Pokemon Cards CSS holographic effect
   ============================================ */

@property --glare-x {
  syntax: '<percentage>';
  initial-value: 50%;
  inherits: true;
}
@property --glare-y {
  syntax: '<percentage>';
  initial-value: 50%;
  inherits: true;
}

.avatar-card {
  --card-scale: 1;
  --card-opacity: 0;
  --rotate-x: 0deg;
  --rotate-y: 0deg;
  --glare-x: 50%;
  --glare-y: 50%;
  --translate-x: 0px;
  --translate-y: 0px;

  display: inline-block;
  perspective: 600px;
  cursor: pointer;
  z-index: 1;
  transition: z-index 0s step-end;
}

.avatar-card.interacting {
  z-index: 999;
  transition: z-index 0s step-start;
}

.avatar-card__translater {
  position: relative;
  transform: translate3d(var(--translate-x), var(--translate-y), 0)
             scale(var(--card-scale));
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
}

.avatar-card__rotator {
  display: grid;
  transform-style: preserve-3d;
  transform: rotateY(var(--rotate-x)) rotateX(var(--rotate-y));
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
  border-radius: 16px;
}

.avatar-card:hover .avatar-card__rotator {
  transition: transform 0.35s ease-out;
}

.avatar-card__rotator > * {
  grid-area: 1/1;
}

.avatar-card__front {
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0.01px);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
}

.avatar-card__front img {
  display: block;
  width: 128px;
  height: 128px;
  border-radius: 16px;
  object-fit: cover;
}

.avatar-card__back {
  backface-visibility: visible;
  transform: rotateY(180deg) translateZ(1px);
  border-radius: 16px;
  overflow: hidden;
}

.avatar-card__back img {
  display: block;
  width: 128px;
  height: 128px;
  border-radius: 16px;
  object-fit: cover;
  transform: scaleX(-1);
}

.avatar-card__glare {
  grid-area: 1/1;
  z-index: 2;
  pointer-events: none;
  border-radius: 16px;
  background: radial-gradient(
    farthest-corner circle at var(--glare-x) var(--glare-y),
    rgba(255, 255, 255, 0.8) 0%,
    rgba(255, 255, 255, 0.4) 18%,
    rgba(255, 255, 255, 0) 55%
  );
  opacity: var(--card-opacity);
  mix-blend-mode: overlay;
  transition: --glare-x 0.35s ease-out, --glare-y 0.35s ease-out, opacity 0.4s ease;
}

.avatar-card:not(.active) .avatar-card__rotator::after {
  content: '';
  grid-area: 1/1;
  z-index: 3;
  pointer-events: none;
  border-radius: 16px;
  opacity: var(--card-opacity);
  transition: opacity 0.5s ease;
  box-shadow:
    inset 0 0 12px 3px rgba(255, 255, 255, 0.15),
    0 0 8px 2px rgba(255, 255, 255, 0.1);
}

/* ============================================
   Expanded — FLIP animation to center + one-time spin
   ============================================ */

.avatar-card-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 998;
  animation: overlay-in 0.4s ease-out;
  overflow: hidden;
}

@keyframes overlay-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.avatar-card-overlay.closing {
  animation: overlay-out 0.35s ease-in forwards;
}

@keyframes overlay-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

.avatar-card-overlay .avatar-card {
  position: absolute;
  z-index: 999;
  perspective: 900px;
  transition: left 0.86s cubic-bezier(0.42, 0, 0.58, 1),
              top 0.86s cubic-bezier(0.42, 0, 0.58, 1);
}

.avatar-card-overlay .avatar-card__translater {
  transition: transform 0.86s cubic-bezier(0.42, 0, 0.58, 1);
}

.avatar-card-overlay.closing .avatar-card {
  transition: left 0.4s ease-in, top 0.4s ease-in;
}
.avatar-card-overlay.closing .avatar-card__translater {
  transition: transform 0.4s ease-in;
}

/* One-time flip during fly-in — slow → fast → slow */
.avatar-card-overlay .avatar-card__rotator {
  animation: flip-once 0.88s cubic-bezier(0.42, 0, 0.58, 1);
}

@keyframes flip-once {
  0%   { transform: rotateY(0deg); }
  100% { transform: rotateY(360deg); }
}

.avatar-card-overlay .avatar-card__front img,
.avatar-card-overlay .avatar-card__back img {
  width: 380px;
  height: 380px;
  border-radius: 24px;
}

.avatar-card-overlay .avatar-card__front,
.avatar-card-overlay .avatar-card__back {
  border-radius: 24px;
}

.avatar-card-overlay .avatar-card__glare {
  border-radius: 24px;
}

/* Close hint */
.avatar-card-close-hint {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  z-index: 1000;
  user-select: none;
  pointer-events: none;
}

/* ============================================
   Hover glow ring
   ============================================ */
@media (hover: hover) {
  .avatar-card:not(.active):hover {
    filter: drop-shadow(0 0 12px rgba(100, 180, 255, 0.5))
            drop-shadow(0 0 24px rgba(100, 180, 255, 0.25));
  }
}