.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 25px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--body);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s ease, border-color 0.3s ease;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #1d0e02;
  background: linear-gradient(135deg, var(--gold-hi), var(--gold) 46%, var(--copper));
  box-shadow: 0 16px 40px -12px rgba(212, 119, 34, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  font-weight: 700;
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.5) 48%, transparent 64%);
  transform: translateX(-120%);
  transition: transform 0.8s var(--ease);
}

.btn-primary:hover::after {
  transform: translateX(120%);
}

.btn-primary:hover {
  box-shadow: 0 22px 48px -12px rgba(212, 119, 34, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn-ghost {
  color: var(--text);
  border-color: var(--line-2);
  background: rgba(255, 255, 255, 0.035);
}

.btn-ghost:hover {
  border-color: rgba(240, 160, 75, 0.55);
  background: rgba(240, 160, 75, 0.08);
}

.btn-sm {
  min-height: 44px;
  padding: 0 18px;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}