/* Number Line Ninja — jump along a number line to solve +/- problems */

.nlj-setup {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.nlj-setup h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.nlj-pick-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nlj-pick {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 2px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  cursor: pointer;
  font: inherit;
  min-width: 160px;
  text-align: left;
}

.nlj-pick strong { font-size: 1rem; }
.nlj-pick small { color: var(--color-text-soft); }

.nlj-pick[aria-pressed="true"] {
  border-color: var(--color-primary);
  background: rgba(79, 216, 224, 0.12);
}

.nlj-pick:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.nlj-start-btn {
  align-self: flex-start;
  margin-top: 4px;
}

.nlj-rewards {
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.nlj-rewards strong { color: var(--color-text); }

.nlj-play {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(79, 216, 224, 0.1), rgba(102, 187, 106, 0.08));
  border: 1px solid var(--color-border);
}

.nlj-theme-mountain { background: linear-gradient(180deg, rgba(120, 144, 156, 0.18), rgba(38, 50, 56, 0.14)); }
.nlj-theme-storm { background: linear-gradient(180deg, rgba(66, 165, 245, 0.16), rgba(13, 71, 161, 0.14)); }
.nlj-theme-shadow { background: linear-gradient(180deg, rgba(126, 87, 194, 0.18), rgba(26, 35, 126, 0.16)); }
.nlj-theme-golden { background: linear-gradient(180deg, rgba(255, 213, 79, 0.2), rgba(230, 81, 0, 0.14)); }

.nlj-banner {
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 1.35rem;
  font-weight: 700;
}

.nlj-banner--good {
  background: rgba(74, 222, 128, 0.15);
  color: var(--color-success);
  font-size: 1.1rem;
}

.nlj-retry {
  margin-top: 6px;
  color: var(--color-accent);
  font-size: 0.95rem;
  font-weight: 600;
}

.nlj-line-wrap {
  background: var(--color-bg-alt);
  border-radius: 14px;
  border: 1px solid var(--color-border);
  padding: 10px;
}

.nlj-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}