.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  letter-spacing: 0.01em;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 4px 16px rgba(26, 54, 93, 0.25);
  transform: translateY(-2px);
}

.btn--primary:active {
  transform: scale(0.97);
}

.btn--primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background: var(--color-accent-warm);
  border-color: var(--color-accent-warm);
  box-shadow: 0 4px 16px rgba(201, 144, 43, 0.3);
  transform: translateY(-2px);
}

.btn--accent:active {
  transform: scale(0.97);
}

.btn--ghost {
  color: var(--color-text-inverse);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--lg {
  padding: 14px 32px;
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

.btn__icon {
  display: inline-flex;
  align-items: center;
}