/* ===== Formation Universes — Premium Category Picker ===== */
/* Adapts to current theme via var(--accent) */
.fu-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.fu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

/* ── Card ── */
.fu-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  border-radius: 16px;
  background: var(--bg-card, rgba(255,255,255,0.05));
  border: 1px solid rgba(255,255,255,0.07);
  cursor: pointer;
  transition: all .28s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: hidden;
}
.fu-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, var(--accent-glow, rgba(167,139,250,0.06)), transparent 70%);
  opacity: 0;
  transition: opacity .3s;
}
.fu-card:hover {
  border-color: color-mix(in srgb, var(--accent, #a78bfa) 30%, transparent);
  transform: translateY(-2px);
  box-shadow:
    0 8px 30px rgba(0,0,0,0.35),
    0 0 30px var(--accent-glow, rgba(167,139,250,0.06));
}
.fu-card:hover::before { opacity: 1; }

/* ── Icon container — dark glass + accent border ── */
.fu-card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(30,25,20,0.8), rgba(15,12,10,0.9));
  border: 1px solid color-mix(in srgb, var(--accent, #a78bfa) 22%, transparent);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  color: var(--accent, #a78bfa);
  transition: all .35s ease;
  box-shadow:
    0 2px 12px rgba(0,0,0,0.3),
    inset 0 1px 0 color-mix(in srgb, var(--accent, #a78bfa) 8%, transparent);
}
.fu-card:hover .fu-card-icon {
  border-color: color-mix(in srgb, var(--accent, #a78bfa) 50%, transparent);
  box-shadow:
    0 4px 20px rgba(0,0,0,0.4),
    0 0 24px color-mix(in srgb, var(--accent, #a78bfa) 10%, transparent),
    inset 0 1px 0 color-mix(in srgb, var(--accent, #a78bfa) 14%, transparent);
  transform: scale(1.04);
}

.fu-card-info {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 1;
}

.fu-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text, #fff);
  margin: 0 0 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
  transition: color .25s;
}

.fu-card-count {
  font-size: 12.5px;
  color: var(--text-muted, #aaa);
  font-weight: 500;
}

.fu-card-arrow {
  color: var(--text-muted, #555);
  transition: transform .25s, color .25s;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.fu-card:hover .fu-card-arrow {
  color: color-mix(in srgb, var(--accent, #a78bfa) 60%, transparent);
  transform: translateX(4px);
}
.fu-card:hover .fu-card-title {
  color: var(--accent-light, var(--accent, #a78bfa));
}

/* ── Action buttons (rename + delete) ── */
.fu-card-rename,
.fu-card-delete {
  position: relative;
  z-index: 2;
  background: none;
  border: none;
  color: var(--text-muted, #555);
  cursor: pointer;
  padding: 7px;
  border-radius: 8px;
  opacity: 0;
  transition: all .2s;
  flex-shrink: 0;
}
.fu-card:hover .fu-card-rename,
.fu-card:hover .fu-card-delete { opacity: .7; }
.fu-card-rename:hover {
  opacity: 1 !important;
  color: var(--accent, #a78bfa);
  background: var(--accent-glow, rgba(167,139,250,0.1));
}
.fu-card-delete:hover {
  opacity: 1 !important;
  color: #ef4444;
  background: rgba(239,68,68,0.12);
}

/* ── Drag handle ── */
.fu-card-handle {
  position: relative;
  z-index: 2;
  color: var(--text-muted, #444);
  cursor: grab;
  padding: 6px 4px;
  border-radius: 6px;
  opacity: 0;
  transition: all .2s;
  flex-shrink: 0;
}
.fu-card:hover .fu-card-handle { opacity: .5; }
.fu-card-handle:hover {
  opacity: 1 !important;
  color: var(--text, #fff);
  background: rgba(255,255,255,0.06);
}
.fu-card-handle:active { cursor: grabbing; }

/* Drag states */
.fu-card--dragging {
  opacity: 0.4 !important;
  transform: scale(0.97) !important;
  box-shadow: 0 0 0 2px var(--accent, #a78bfa) !important;
}
.fu-card-placeholder {
  border: 2px dashed color-mix(in srgb, var(--accent, #a78bfa) 40%, transparent);
  border-radius: 16px;
  min-height: 80px;
  background: var(--accent-glow, rgba(167,139,250,0.04));
}

/* ── Variants ── */
.fu-card--uncategorized {
  border-style: dashed;
  opacity: 0.65;
}
.fu-card--uncategorized:hover { opacity: 1; }

.fu-card--all {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent, #a78bfa) 10%, transparent), color-mix(in srgb, var(--accent, #a78bfa) 5%, transparent));
  border-color: color-mix(in srgb, var(--accent, #a78bfa) 15%, transparent);
}
.fu-card--all:hover {
  border-color: color-mix(in srgb, var(--accent, #a78bfa) 40%, transparent);
}

/* ── Icon picker in create modal ── */
.fu-icon-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}
.fu-icon-btn {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1.5px solid rgba(255,255,255,0.06);
  background: linear-gradient(145deg, rgba(30,25,20,0.6), rgba(15,12,10,0.8));
  color: var(--accent, #a78bfa);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  position: relative;
  padding: 4px;
}
.fu-icon-btn:hover {
  border-color: color-mix(in srgb, var(--accent, #a78bfa) 40%, transparent);
  transform: scale(1.1);
}
.fu-icon-btn--active {
  border-color: color-mix(in srgb, var(--accent, #a78bfa) 65%, transparent) !important;
  box-shadow: 0 0 16px var(--accent-glow, rgba(167,139,250,0.15));
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .fu-grid { grid-template-columns: 1fr; gap: 12px; }
  .fu-card { padding: 16px 18px; }
  .fu-card-icon { width: 46px; height: 46px; border-radius: 12px; }
  .fu-card-title { font-size: 14px; }
  .fu-icon-grid { grid-template-columns: repeat(6, 1fr); }
}