/* ════ LEADERBOARD ════ */
.lb-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(8,8,28,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  align-items: flex-end;
  justify-content: center;
}
.lb-overlay.open { display: flex; }

.lb-modal {
  background: var(--surface);
  border-radius: 28px 28px 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lb-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 12px;
  border-bottom: 1px solid var(--border);
}
.lb-modal-title { font-size: 1.15rem; font-weight: 700; color: var(--text); }
.lb-close-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s, transform 0.15s;
}
.lb-close-btn:active { transform: scale(0.9); }

.lb-tabs { display: flex; gap: 8px; padding: 12px 16px 8px; }
.lb-tab {
  flex: 1; padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem; font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.lb-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.lb-list { overflow-y: auto; flex: 1; padding: 4px 12px 16px; }

.lb-row {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  border-radius: 14px;
  margin-bottom: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
}
.lb-row.lb-me {
  background: rgba(124,58,237,0.15);
  border-color: var(--primary);
}
.lb-rank   { font-size: 1.15rem; width: 36px; text-align: center; }
.lb-avatar { font-size: 1.3rem; }
.lb-name   { flex: 1; font-weight: 600; color: var(--text); font-size: 0.92rem; }
.lb-score  { color: var(--primary); font-weight: 700; font-size: 0.88rem; }

.lb-loading, .lb-empty {
  text-align: center; padding: 40px 20px;
  color: var(--text-soft); font-size: 0.95rem;
}

.lb-skeleton-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 14px;
  margin-bottom: 6px;
}
.lb-skeleton-rank {
  width: 36px;
  height: 22px;
  border-radius: 6px;
}
.lb-skeleton-name {
  flex: 1;
  height: 16px;
  border-radius: 8px;
}
.lb-skeleton-score {
  width: 48px;
  height: 14px;
  border-radius: 6px;
}

/* ── Desktop centering ── */
@media (min-width: 900px) {
  .lb-overlay {
    align-items: center;
  }
  .lb-modal {
    border-radius: 24px;
    width: 92%;
    max-width: 520px;
  }
}