:root { --qf-wallpaper-dim: .46; }

.qf-wallpaper-stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: #07090d;
  pointer-events: none;
}

.qf-wallpaper-layer {
  position: absolute;
  inset: -2%;
  opacity: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1.025);
  transition: opacity 1.1s ease, transform 8s ease;
  will-change: opacity, transform;
}

.qf-wallpaper-layer.is-active {
  opacity: 1;
  transform: scale(1);
}

.qf-wallpaper-layer video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.qf-wallpaper-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 4, 8, calc(var(--qf-wallpaper-dim) + .12)), rgba(3, 5, 9, var(--qf-wallpaper-dim)) 48%, rgba(2, 4, 8, calc(var(--qf-wallpaper-dim) + .04))),
    linear-gradient(180deg, rgba(2, 4, 8, .12), rgba(2, 4, 8, .36));
}

.qf-wallpaper-off .qf-wallpaper-stage {
  background:
    radial-gradient(circle at 18% 12%, rgba(60, 160, 170, .14), transparent 32%),
    radial-gradient(circle at 82% 84%, rgba(87, 82, 164, .15), transparent 34%),
    #07090d;
}

.qf-wallpaper-off .qf-wallpaper-scrim { display: none; }
.qf-wallpaper-active::after { display: none; }

.qf-background-panel { margin-top: 14px; }

.qf-bg-heading,
.qf-bg-section-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.qf-bg-heading h3 { margin: 0 0 6px; }
.qf-bg-heading .desc { margin: 0; }

.qf-bg-controls {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  padding: 10px;
  margin-top: 14px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
  background: rgba(4, 7, 12, .24);
}

.qf-bg-source {
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--color-secondary);
  background: transparent;
  cursor: pointer;
}

.qf-bg-source:hover { color: var(--color-primary); background: rgba(255, 255, 255, .08); }

.qf-bg-source.is-active {
  color: #071014;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .16);
}

.qf-bg-switch,
.qf-bg-field {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 6px 10px;
  color: var(--color-secondary);
  font-size: 12px;
}

.qf-bg-switch input { accent-color: #62d8d2; width: 16px; height: 16px; }
.qf-bg-field .select { width: auto; min-height: 34px; padding: 5px 28px 5px 9px; }
.qf-bg-dim { min-width: 190px; }
.qf-bg-dim input { min-width: 100px; accent-color: #62d8d2; }
.qf-bg-dim output { min-width: 34px; text-align: right; }

.qf-bg-section {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .11);
}

.qf-bg-section[hidden] { display: none; }

.qf-bg-section-title {
  align-items: baseline;
  margin-bottom: 10px;
}

.qf-bg-section-title strong { font-size: 14px; }
.qf-bg-section-title span { color: var(--color-secondary); font-size: 11px; text-align: right; }

.qf-bg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 9px;
}

.qf-bg-thumb {
  position: relative;
  min-width: 0;
  aspect-ratio: 16 / 9;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
  color: #fff;
  background: rgba(255, 255, 255, .05);
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(0, 0, 0, .16);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.qf-bg-thumb:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, .42);
  box-shadow: 0 16px 36px rgba(0, 0, 0, .22);
}

.qf-bg-thumb.is-selected {
  border-color: #79e2dd;
  box-shadow: 0 0 0 2px rgba(98, 216, 210, .2), 0 16px 36px rgba(0, 0, 0, .22);
}

.qf-bg-thumb.is-selected::after {
  content: "✓";
  position: absolute;
  top: 7px;
  right: 7px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  color: #061012;
  background: #85ebe6;
  box-shadow: 0 5px 14px rgba(0, 0, 0, .25);
}

.qf-bg-thumb img,
.qf-bg-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.qf-bg-thumb-meta {
  position: absolute;
  inset: auto 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 8px;
  padding: 24px 8px 7px;
  text-align: left;
  background: linear-gradient(transparent, rgba(0, 0, 0, .76));
}

.qf-bg-thumb-meta strong {
  min-width: 0;
  overflow: hidden;
  font-size: 11px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qf-bg-thumb-meta small { flex: none; color: rgba(255, 255, 255, .68); font-size: 9px; }

.qf-bg-user-item { position: relative; min-width: 0; }
.qf-bg-user-item .qf-bg-thumb { width: 100%; }

.qf-bg-remove {
  position: absolute;
  top: 7px;
  left: 7px;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%;
  color: #fff;
  background: rgba(130, 28, 36, .72);
  cursor: pointer;
}

.qf-bg-upload {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) auto auto minmax(130px, auto);
  gap: 8px;
  align-items: center;
  margin-bottom: 11px;
}

.qf-bg-upload > span {
  min-width: 0;
  overflow: hidden;
  color: var(--color-secondary);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qf-cloud-admin { border-top-color: rgba(231, 108, 93, .26); }
.qf-bg-admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 9px; }
.qf-bg-admin-row { min-width: 0; padding: 7px; border: 1px solid rgba(255, 255, 255, .1); border-radius: 8px; background: rgba(255, 255, 255, .035); }
.qf-bg-admin-row .qf-bg-thumb { width: 100%; }
.qf-bg-admin-actions { display: flex; justify-content: flex-end; gap: 6px; margin-top: 7px; }

@media (max-width: 720px) {
  .qf-bg-controls { align-items: stretch; }
  .qf-bg-source { flex: 1 1 auto; }
  .qf-bg-switch,
  .qf-bg-field { flex: 1 1 auto; justify-content: space-between; }
  .qf-bg-controls > .btn { width: 100%; }
  .qf-bg-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .qf-bg-upload { grid-template-columns: 1fr 1fr; }
  .qf-bg-upload .input,
  .qf-bg-upload > span { grid-column: 1 / -1; }
  .qf-bg-upload .btn { width: 100%; }
}

@media (max-width: 390px) {
  .qf-bg-grid { grid-template-columns: 1fr; }
  .qf-bg-heading { align-items: stretch; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .qf-wallpaper-layer { transition: none; transform: none; }
}