.btn {
  padding: 13px 28px;
  font-family: var(--font-retro);
  font-weight: normal;
  font-size: 17px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: 3px;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.15s ease, filter 0.15s ease;
  border: none;
  text-decoration: none;
  display: inline-block;
}

.btn.primary {
  color: #080808;
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  box-shadow: 0 0 22px rgba(200, 169, 110, 0.35), 3px 3px 0 var(--gold-deep);
}

.btn.primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 30px rgba(200, 169, 110, 0.55), 3px 3px 0 var(--gold-deep);
}

.btn.primary:active {
  box-shadow: 0 0 22px rgba(200, 169, 110, 0.35), 1px 1px 0 var(--gold-deep);
}

.btn.ghost {
  color: var(--gold);
  background: transparent;
  border: 1px solid rgba(200, 169, 110, 0.5);
  box-shadow: 2px 2px 0 rgba(160, 120, 48, 0.25);
}

.btn.ghost:hover {
  background: rgba(200, 169, 110, 0.08);
}

.btn.small {
  padding: 7px 18px;
  font-size: 14px;
}

.btn:active {
  transform: scale(0.96);
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Marquee bulb border — real chasing casino-light bulbs, alternating on/off around the edge */
.bulb-border {
  position: relative;
}

.bulb-border::after,
.bulb-border::before {
  content: '';
  position: absolute;
  inset: -9px;
  border-radius: inherit;
  background-image: radial-gradient(circle, var(--gold-bright) 2.6px, transparent 3.4px);
  background-size: 18px 18px;
  background-position: 0 0;
  filter: drop-shadow(0 0 3px #fff8e6) drop-shadow(0 0 7px var(--gold-bright));
  pointer-events: none;
  z-index: -1;
}

.bulb-border::before {
  background-position: 9px 9px;
  animation: bulbs-chase-a 0.9s steps(1) infinite;
}

.bulb-border::after {
  animation: bulbs-chase-b 0.9s steps(1) infinite;
}

@keyframes bulbs-chase-a {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.15; }
}

@keyframes bulbs-chase-b {
  0%, 49% { opacity: 0.15; }
  50%, 100% { opacity: 1; }
}

.bulb-border.fast::before,
.bulb-border.fast::after {
  animation-duration: 0.3s;
}