/* Reward Blocks — default UI text is white (--rb-text) */
.reward-blocks {
  --rb-bg: #0f172a;
  --rb-text: #ffffff;
  --rb-muted: rgba(255, 255, 255, 0.78);
  --rb-accent: #fbbf24;
  --rb-card: #1e293b;
  background: var(--rb-bg);
  color: var(--rb-text);
  padding: clamp(2rem, 5vw, 3rem) clamp(1rem, 4vw, 2rem);
  box-sizing: border-box;
}

.reward-blocks *,
.reward-blocks *::before,
.reward-blocks *::after {
  box-sizing: border-box;
}

.reward-blocks .rb-head {
  max-width: 48rem;
  margin: 0 auto 1.25rem;
  text-align: center;
}

.reward-blocks .rb-head__title {
  margin: 0 0 0.4rem;
  font-size: clamp(1.25rem, 3vw, 1.85rem);
  font-weight: 800;
  color: var(--rb-text);
}

.reward-blocks .rb-head__sub {
  margin: 0;
  font-size: 0.95rem;
  color: var(--rb-muted);
  line-height: 1.45;
}

.reward-blocks .rb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.2rem;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--rb-accent), #fcd34d);
  color: #0f172a;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.reward-blocks .rb-btn:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.reward-blocks .rb-btn--ghost {
  background: transparent;
  color: var(--rb-text);
  border: 1px solid color-mix(in srgb, var(--rb-accent) 45%, rgba(255, 255, 255, 0.35));
}

.reward-blocks .rb-btn--ghost:hover {
  background: color-mix(in srgb, var(--rb-accent) 12%, transparent);
}