/* ─── Playground full-screen window ──────────────────────────────────────── */

#playground-window {
  /* left / top / width / height are set by JS for genie animation */
  position: fixed;
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* window-box must be overflow:visible so the CSS 3D carousel (preserve-3d) works */
#playground-window .window-box {
  flex: 1;
  overflow: visible;
  display: flex;
  flex-direction: column;
  /* Strip inherited glassmorphism — header keeps it, stage gets solid white */
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
  border: none !important;
  border-radius: 0 !important;
}

/* White canvas below the header */
#playground-window .carousel-stage {
  background: #ffffff;
}

/* Header gets its own glassmorphism since window-box is now transparent */
#playground-window .window-header {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.17);
}

/* carousel fills the space below the header */
.carousel-stage {
  flex: 1;
  position: relative;
  overflow: visible;
}

/* ─── Carousel ────────────────────────────────────────────────────────────── */

.carousel-ring-anchor {
  position: absolute;
  top: 45%; left: 50%;
  perspective: 1100px;
  perspective-origin: 50% 50%;
  transform: translate(-50%, -50%);
}

.carousel-ring {
  position: relative;
  width: 0; height: 0;
  transform-style: preserve-3d;
}

.album {
  position: absolute;
  left: -80px; top: -80px;
  width: 160px; height: 160px;
  border-radius: 0;
  transform-style: preserve-3d;
  cursor: pointer;
  transition: opacity 0.4s ease;
}

.album-face {
  position: absolute;
  inset: 0;
  border-radius: 0;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.2), 0 2px 8px rgba(0,0,0,0.1);
}

.album-placeholder {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: flex-end;
  padding: 14px;
}

.album-placeholder-label {
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
}

#dragHint {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  font-size: 11px; letter-spacing: 0.1em; color: #bbb;
  opacity: 0; white-space: nowrap;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  pointer-events: none;
}

/* ─── Playground overlays ─────────────────────────────────────────────────── */

#pg-top-left {
  position: absolute;
  top: 52px;
  left: 28px;
  z-index: 10;
  pointer-events: none;
  user-select: none;
}

.pg-title {
  font-family: 'SFRegular', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 76px;
  font-weight: 400;
  letter-spacing: -0.03em;
  color: rgba(0, 0, 0, 0.72);
  line-height: 1;
}

.pg-subtitle {
  font-family: 'SFRegular', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 76px;
  font-weight: 400;
  letter-spacing: -0.03em;
  color: rgba(0, 0, 0, 0.72);
  line-height: 1;
  margin-top: 0;
}

#pg-top-right {
  position: absolute;
  top: 58px;
  right: 28px;
  z-index: 10;
  pointer-events: none;
  user-select: none;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  font-size: 11px;
  color: rgba(0, 0, 0, 0.3);
  letter-spacing: 0.01em;
  text-align: right;
}

/* ─── Bottom bar ──────────────────────────────────────────────────────────── */

#pg-bottom-bar {
  position: absolute;
  bottom: 18px;
  left: 28px;
  right: 28px;
  z-index: 10;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  pointer-events: none;
}

#pg-bottom-left {
  display: flex;
  align-items: flex-end;
  gap: 11px;
  pointer-events: none;
  user-select: none;
}

#pg-active-thumb {
  width: 55px;
  height: 55px;
  border-radius: 0;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

#pg-active-label {
  font-family: 'SFRegular', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  font-weight: 400;
  color: rgba(0, 0, 0, 0.5);
  letter-spacing: 0.03em;
  text-transform: capitalize;
}

#pg-count {
  pointer-events: none;
  user-select: none;
  font-family: 'SFMedium', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  font-weight: 400;
  color: rgba(0, 0, 0, 0.28);
  letter-spacing: 0.12em;
}

#pg-right-group {
  display: flex;
  align-items: flex-end;
  gap: 250px;
  pointer-events: none;
}

#pg-strip {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  user-select: none;
  pointer-events: auto;
}

.pg-strip-thumb {
  width: 35px;
  height: 35px;
  border-radius: 0;
  border: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: width 0.22s cubic-bezier(0.34, 1.56, 0.64, 1),
              height 0.22s cubic-bezier(0.34, 1.56, 0.64, 1),
              outline-color 0.15s ease,
              transform 0.12s ease;
}

.pg-strip-thumb:hover:not(.pg-strip-active) {
  transform: translateY(-2px);
}

.pg-strip-thumb.pg-strip-active {
  width: 40px;
  height: 40px;
  outline-color: rgba(0, 0, 0, 0.3);
  cursor: default;
}

/* ─── Detail panel (slides in from left on album click) ──────────────────── */

.pg-detail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 4300;
  display: flex;
  align-items: center;
  padding-left: 80px;
  pointer-events: none;
}

.pg-detail-box {
  pointer-events: all;
  background: rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 16px;
  padding: 40px 44px 32px;
  width: 340px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pg-detail-title {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgba(0, 0, 0, 0.82);
  text-transform: capitalize;
  line-height: 1.1;
}

.pg-detail-sub {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.3);
  margin-top: -2px;
}

.pg-detail-body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  font-size: 13px;
  color: rgba(0, 0, 0, 0.5);
  line-height: 1.6;
  margin-top: 6px;
}

.pg-detail-back {
  border: none;
  background: none;
  padding: 0;
  margin-top: 12px;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  font-size: 12px;
  color: rgba(0, 0, 0, 0.35);
  cursor: pointer;
  letter-spacing: 0.04em;
  text-align: left;
  transition: color 0.15s ease;
}

.pg-detail-back:hover {
  color: rgba(0, 0, 0, 0.65);
}