/* ==========================================================================
   Industrial Buttons & Interactive Components
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--epna-space-sm);
  padding-inline: var(--epna-space-lg);
  padding-block: 0.65rem;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  border-radius: var(--epna-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--epna-transition-normal);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--epna-cyan);
  color: var(--epna-dark);
  box-shadow: 0 0 15px var(--epna-cyan-glow);
}

.btn-primary:hover {
  background-color: var(--epna-cyan-light);
  color: var(--epna-dark);
  box-shadow: 0 0 25px rgba(28, 249, 249, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--epna-cyan);
  border-color: var(--epna-cyan);
}

.btn-outline:hover {
  background-color: var(--epna-cyan);
  color: var(--epna-dark);
  box-shadow: 0 0 20px var(--epna-cyan-glow);
  transform: translateY(-2px);
}

.btn-slate {
  background-color: var(--epna-slate);
  color: var(--epna-white);
  border-color: var(--epna-slate-border);
}

.btn-slate:hover {
  background-color: var(--epna-slate-light);
  color: var(--epna-white);
  border-color: var(--epna-gray);
  transform: translateY(-2px);
}

.btn-sm {
  padding-inline: var(--epna-space-md);
  padding-block: 0.4rem;
  font-size: 0.8125rem;
}

.btn-md {
  padding-inline: var(--epna-space-lg);
  padding-block: 0.65rem;
  font-size: 0.9375rem;
}

.btn-lg {
  padding-inline: var(--epna-space-2xl);
  padding-block: 0.85rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
  text-align: center;
}

/* Directional Button Arrows (RTL-aware) */
.btn-arrow {
  display: inline-block;
  transition: transform var(--epna-transition-fast);
}

body.rtl .btn-arrow,
html[dir="rtl"] .btn-arrow {
  display: inline-block;
  transform: scaleX(-1);
}